外文文献原文
智能交通系统中英文对照外文翻译文献
智能交通系统中英文对照外文翻译文献(文档含英文原文和中文翻译)原文:Traffic Assignment Forecast Model Research in ITS IntroductionThe intelligent transportation system (ITS) develops rapidly along with the city sustainable development, the digital city construction and the development of transportation. One of the main functions of the ITS is to improve transportation environment and alleviate the transportation jam, the most effective method to gain the aim is to forecast the traffic volume of the local network and the important nodes exactly with GIS function of path analysis and correlation mathematic methods, and this will lead a better planning of the traffic network. Traffic assignment forecast is an important phase of traffic volume forecast. It will assign the forecasted traffic to every way in the traffic sector. If the traffic volume of certain road is too big, which would bring on traffic jam, planners must consider the adoption of new roads or improving existing roads to alleviate the traffic congestion situation. This study attempts to present an improved traffic assignment forecast model, MPCC, based on analyzing the advantages and disadvantages of classic traffic assignment forecast models, and test the validity of the improved model in practice.1 Analysis of classic models1.1 Shortcut traffic assignmentShortcut traffic assignment is a static traffic assignment method. In this method, the traffic load impact in the vehicles’ travel is not considered, and the traffic impedance (travel time) is a constant. The traffic volume of every origination-destination couple will be assigned to the shortcut between the origination and destination, while the traffic volume of other roads in this sector is null. This assignment method has the advantage of simple calculation; however, uneven distribution of the traffic volume is its obvious shortcoming. Using this assignment method, the assignment traffic volume will be concentrated on the shortcut, which isobviously not realistic. However, shortcut traffic assignment is the basis of all theother traffic assignment methods.1.2 Multi-ways probability assignmentIn reality, travelers always want to choose the shortcut to the destination, whichis called the shortcut factor; however, as the complexity of the traffic network, thepath chosen may not necessarily be the shortcut, which is called the random factor.Although every traveler hopes to follow the shortcut, there are some whose choice isnot the shortcut in fact. The shorter the path is, the greater the probability of beingchosen is; the longer the path is, the smaller the probability of being chosen is.Therefore, the multi-ways probability assignment model is guided by the LOGIT model:∑---=n j ii i F F p 1)exp()exp(θθ (1)Where i p is the probability of the path section i; i F is the travel time of thepath section i; θ is the transport decision parameter, which is calculated by the followprinciple: firstly, calculate the i p with different θ (from 0 to 1), then find the θwhich makes i p the most proximate to the actual i p .The shortcut factor and the random factor is considered in multi-ways probabilityassignment, therefore, the assignment result is more reasonable, but the relationshipbetween traffic impedance and traffic load and road capacity is not considered in thismethod, which leads to the assignment result is imprecise in more crowded trafficnetwork. We attempt to improve the accuracy through integrating the several elements above in one model-MPCC.2 Multi-ways probability and capacity constraint model2.1 Rational path aggregateIn order to make the improved model more reasonable in the application, theconcept of rational path aggregate has been proposed. The rational path aggregate,which is the foundation of MPCC model, constrains the calculation scope. Rationalpath aggregate refers to the aggregate of paths between starts and ends of the trafficsector, defined by inner nodes ascertained by the following rules: the distancebetween the next inner node and the start can not be shorter than the distance betweenthe current one and the start; at the same time, the distance between the next innernode and the end can not be longer than the distance between the current one and theend. The multi-ways probability assignment model will be only used in the rationalpath aggregate to assign the forecast traffic volume, and this will greatly enhance theapplicability of this model.2.2 Model assumption1) Traffic impedance is not a constant. It is decided by the vehicle characteristicand the current traffic situation.2) The traffic impedance which travelers estimate is random and imprecise.3) Every traveler chooses the path from respective rational path aggregate.Based on the assumptions above, we can use the MPCC model to assign thetraffic volume in the sector of origination-destination couples.2.3 Calculation of path traffic impedanceActually, travelers have different understanding to path traffic impedance, butgenerally, the travel cost, which is mainly made up of forecast travel time, travellength and forecast travel outlay, is considered the traffic impedance. Eq. (2) displaysthis relationship. a a a a F L T C γβα++= (2)Where a C is the traffic impedance of the path section a; a T is the forecast traveltime of the path section a; a L is the travel length of the path section a; a F is theforecast travel outlay of the path section a; α, β, γ are the weight value of that threeelements which impact the traffic impedance. For a certain path section, there aredifferent α, β and γ value for different vehicles. We can get the weighted average of α,β and γ of each path section from the statistic percent of each type of vehicle in thepath section.2.4 Chosen probability in MPCCActually, travelers always want to follow the best path (broad sense shortcut), butbecause of the impact of random factor, travelers just can choose the path which is ofthe smallest traffic impedance they estimate by themselves. It is the key point ofMPCC. According to the random utility theory of economics, if traffic impedance is considered as the negativeutility, the chosen probability rs p of origination-destinationpoints couple (r, s) should follow LOGIT model:∑---=n j jrs rs bC bC p 1)exp()exp( (3) where rs p is the chosen probability of the pathsection (r, s);rs C is the traffic impedance of the path sect-ion (r, s); j C is the trafficimpedance of each path section in the forecast traffic sector; b reflects the travelers’cognition to the traffic impedance of paths in the traffic sector, which has reverseratio to its deviation. If b → ∞ , the deviation of understanding extent of trafficimpedance approaches to 0. In this case, all the travelers will follow the path whichis of the smallest traffic impedance, which equals to the assignment results withShortcut Traffic Assignment. Contrarily, if b → 0, travelers ’ understanding error approaches infinity. In this case, the paths travelers choose are scattered. There is anobjection that b is of dimension in Eq.(3). Because the deviation of b should beknown before, it is difficult to determine the value of b. Therefore, Eq.(3) is improvedas follows:∑---=n j OD j OD rsrs C bC C bC p 1)exp()exp(，∑-=n j j OD C n C 11（4） Where OD C is the average of the traffic impedance of all the as-signed paths; bwhich is of no dimension, just has relationship to the rational path aggregate, ratherthan the traffic impedance. According to actual observation, the range of b which is anexperience value is generally between 3.00 to 4.00. For the more crowded cityinternal roads, b is normally between 3.00 and 3.50.2.5 Flow of MPCCMPCC model combines the idea of multi-ways probability assignment anditerative capacity constraint traffic assignment.Firstly, we can get the geometric information of the road network and OD trafficvolume from related data. Then we determine the rational path aggregate with themethod which is explained in Section 2.1.Secondly, we can calculate the traffic impedance of each path section with Eq.(2),Fig.1 Flowchart of MPCC which is expatiated in Section 2.3.Thirdly, on the foundation of the traffic impedance of each path section, we cancalculate the respective forecast traffic volume of every path section with improvedLOGIT model (Eq.(4)) in Section 2.4, which is the key point of MPCC.Fourthly, through the calculation processabove, we can get the chosen probability andforecast traffic volume of each path section, but itis not the end. We must recalculate the trafficimpedance again in the new traffic volumesituation. As is shown in Fig.1, because of theconsideration of the relationship between trafficimpedance and traffic load, the traffic impedanceand forecast assignment traffic volume of everypath will be continually amended. Using therelationship model between average speed andtraffic volume, we can calculate the travel timeand the traffic impedance of certain path sect-ionunder different traffic volume situation. For theroads with different technical levels, therelationship models between average speeds totraffic volume are as follows: 1) Highway: 1082.049.179AN V = (5) 2) Level 1 Roads: 11433.084.155AN V = (6) 3) Level 2 Roads: 66.091.057.112AN V = (7) 4) Level 3 Roads: 3.132.01.99AN V = (8) 5) Level 4 Roads: 0988.05.70A N V =(9) Where V is the average speed of the path section; A N is the traffic volume of thepath section.At the end, we can repeat assigning traffic volume of path sections with themethod in previous step, which is the idea of iterative capacity constraint assignment,until the traffic volume of every path section is stable.译文智能交通交通量分配预测模型介绍随着城市的可持续化发展、数字化城市的建设以及交通运输业的发展，智能交通系统（ITS）的发展越来越快。
外文参考文献译文及原文
目录1介绍 (1)在这一章对NS2的引入提供。
尤其是，关于NS2的安装信息是在第2章。
第3章介绍了NS2的目录和公约。
第4章介绍了在NS2仿真的主要步骤。
一个简单的仿真例子在第5章。
最后，在第.8章作总结。
2安装 (1)该组件的想法是明智的做法，以获取上述件和安装他们的个人。
此选项保存downloadingtime和大量内存空间。
但是，它可能是麻烦的初学者，因此只对有经验的用户推荐。
(2)安装一套ns2的all-in-one在unix-based系统 (2)安装一套ns2的all-in-one在Windows系统 (3)3目录和公约 (4)目录 (4)4运行ns2模拟 (6)ns2程序调用 (6)ns2模拟的主要步骤 (6)5一个仿真例子 (8)6总结 (12)1 Introduction (13)2 Installation (15)Installing an All-In-One NS2 Suite on Unix-Based Systems (15)Installing an All-In-One NS2 Suite on Windows-Based Systems (16)3 Directories and Convention (17)Directories and Convention (17)Convention (17)4 Running NS2 Simulation (20)NS2 Program Invocation (20)Main NS2 Simulation Steps (20)5 A Simulation Example (22)6 Summary (27)1介绍网络模拟器(一般叫作NS2)的版本，是证明了有用在学习通讯网络的动态本质的一个事件驱动的模仿工具。
模仿架线并且无线网络作用和协议(即寻址算法，TCP，UDP)使用NS2，可以完成。
一般来说，NS2提供用户以指定这样网络协议和模仿他们对应的行为方式。
外文文献翻译原文
Enterprise risk management functionEnterprise faces all the risk of the capitalization of forms, is the embodiment of the operating risk of an enterprise.By definition, "enterprise risk management (ERM) is a process, is an entity's board of directors, management and other personnel, applied in a strategic stetting and the whole enterprise, designed to identify potential events, and risk management, the entity within the risk preference to provide reasonable assurance that to achieve the goals. Entity" (COSO enterprise risk management-integrated framework (2004))Although the CEO job and senior management assessment and management company's exposure to risk, the audit committee (or in some cases, appointed a commission to) was charged with the responsibility of risk committee to discuss specific policies, establish and provide supervision and management of the process enterprise risk management process. In today's height in the form of currency in the economy and society, the enterprise in the environment of market economy organization with production and operating activities and bear all kinds of risk, its occurrence, development and risks are concentrated reflection is the reality of the enterprise or the underlying economic interests losses, all kinds of operating loss can also in a certain way into economic loss. From this perspective, the enterprise risk of the size and the losses have direct and clear representation in enterprise financial revenues and expenditures of the change, eventually ?Enterprise financial activities in the process, because every uncertainty factors, the actual financial status and financial situation is expected to possible deviation, cause loss and produce the financial risk. Strengthen enterprise's scientific management especially financial management is standardization of construction, the sustainable and healthy development of way.As mentioned above, the risk management is a process, including the documented risk assessment and management oversight process.Risk management procedures, including the documented risk assessment and establish management supervision process, is unique, each organization, is dedicated to ensure that the risk management process development bank in all bank address operation and business units. From this perspective, the enterprise shall establish a monetary fund business post responsibility system, clearly related department and post responsibility and authority, ensure the incompatibility of monetary fund business from each position, and restriction and supervision. Enterprise risk of the size and the losses have direct and clear representation in enterprise financial revenues and expenditures of the change, and finally the performance for the enterprise financial benefits reduced.The risk management of the whole process:The audit committee of the board of directors is responsible for the independent and objective supervision function, accounting and financial reporting and internal control audit function of the company. The enterprise risk assessment, risk management and audit plan (the basis of risk appraisal) defined procedures and related enterprise risk management audit function of the company.Integrated architecture is taking risk auditing function of the concept of risk, how to access these risk management, and the role of how to use the audit function. Enterprise risk management concepts, including:1.recognition, the source, the distribution and measure risk and responsibility2.risk strategy design3.implementation strategies4.review and monitoring an on-going basismunicate resultsIn order to facilitate the audit committee of the auditing function should be responsible management policy of a risk evaluation audit committee, all the operating areas (business process and unit) company for identify those could be dangerous area of the company. Risk can be identified and defined risk assessment of these units:1. credit,2. interest rates,3. market,4. liquidity,5. operation,6. supervision and management,7. law (hard),8. strategy and capital,9. reputationThe purpose of the risk assessment is to find out the inherent risks and internal control for each business process, thus leading to the development of the unit, the risk audit plans to allocate resources to verify and operation control system based on internal risk and business processes or unit.1. methodology of the risk assessment is to review and appraisal risk.2. The amount of risk ? (inherent risk),3. quality risk management (control risk),4. total risk assessmentBased on this analysis will determine the level as risk is low, medium or high, and the direction of risk-increasing, stable, reduce, in all the company business unit (defined as audit the universe).Risk assessment should also give effect (12 months) short term and long term (more than 12 months) business units expect the company's annual budget process links and long-term strategic plan.Risk assessment and corresponding audit plan should be reviewed and approved the audit committee and the board of the directors. Risk assessment should be updated need minimal, but the foundation of every year, in order to ensure the proper resources to audit function, make sure the identified risk is by audit plan. From the perspective of economics, the modern the financial risk of the enterprise is a microscopic economic risk, is the enterprise faces all the risk of the capitalization of forms, is the embodiment of the operating risk of an enterprise. Enterprise even reasonable arrange capital, avoid the mistakes bring capital scheduling financial risk, liquidity is the measure of a enterprise pay due debt of the scale of the ability. To maintain a high level of liquidity that enterprise control financial risk, and reduce the important guarantee of the financial pressure. Enterprise assets more easily get ?Risk management is throughout the company through the exercise of a matrix for the definition of risk management measures therapy. Risk management plan is to identify risks including every component as mentioned by using internal development risk managementprocesses, management team monitoring and management procedures, the board of directors and the committee report related board and supervision.. Enterprise adventure there will always be risks, the enterprise can't continue to the profit, regardless of the outcome, wantonly investment debt, increase financial burden. Management of risk management system is mainly produced imperfect system, caused the financial management activities in the corner and blind area. The implement of system is inadequate, reduce the management work of the actual effect; The supervision measures do not reach the designated position, weakened financial regulatory control; The management means not updating, restricted the management efficiency. These eventually led to the generation of accounting information, the transmission, the whole process of examination management does not arrive, the cause of the accounting information authenticity, integrity could not be guaranteed, information to deliver timely affected, affect decision-making more scientific and reasonable, increases the risk of decision-making errors. Which leads to the enterprise of the financial risk of intensified. In addition, in the management personnel, as we all know, the formation of any risks with people about, risk prevention, the human element is very important. If can not solve the problem of management, again good ?Enterprise in financing process, must influence financing activities of all kinds of factors are analyzed, and follow the certain financing principle to improve financing efficiency and reduce funding risk and financing cost. General enterprise's main purpose is to raise money for their own normal production and operation and the development, is in order to expand the scale of production and operation, to improve the economic benefit. Enterprise adventure there will always be risks, the enterprise can't continue to the profit, regardless of the outcome, wantonly investment debt, increase financial burden. Enterprise financing should master certain principles. Enterprise financing should master certain principles. Such as the appropriate scale, reasonable structure, cost saving and financing according to law. Summarize the risk evaluation matrix each company's major business unit/process will be developed. The following definitions are, each risk type identification in constant risk evaluation matrix, followed by the company's internal processes or risk management scheme to identify types of risk, address. In market economic waves, in a highly competitive environments, the benefits and risks always, the greater the risk, the greater the profits, high risk will bring high return. If the enterprise does not dare to risk, it may lose a lot of opportunity, because the risk of existence, also can give enterprise to bring the opportunity to get high profits. But at the same time, the enterprise must learn to control risk, increase to resist the ability of the risk.Also discusses and analyses the bank's risk profile determining internal control process can provide enterprises and institutions of risk assessment. Since then, the company according to the characteristics of the enterprise and capital requirements were number of possible investment company. In the screening, the risk of enterprise to consider the factors including: enterprise required the size of the investment; The geographical location of the enterprise; Enterprise's stage of development and development; Sales of enterprise profit and; The management of the enterprise range, etc. Usually, in the process, lawyers and accountants to play a large role.When measuring the risk in the business unit or a given process, consider the risk inherent risk (quantity) a given area. For example, some regions, such as the loan portfolios of quality,Shanghai/AML compliance and information system because of its natural or current foreign influence has a higher level of inherent risk, usually in financial institutions consistent regardless of size and complexity. Quality risk management provides a measure of control and process means to reduce risk in a particular risk category. In addition, in the management personnel, as we all know, the formation of any risks with people about, risk prevention, the human element is very important. If can not solve the problem of management, again good internal control system is of no help, a moral risk of out of control, again good regulations also resist the deliberately illegal enterprise. Under the guideline, the board of directors of the company and the audit committee, enterprise management should use risk management plan extensive, involves a series of partition scheme, unity of the assessment of the way the audit committee and senior management, supervision and the board of directors.。
室内装饰装修设计外文文献翻译中英文
外文文献翻译(含：英文原文及中文译文)文献出处：Y Miyazaki. A Brief Description of Interior Decoration [J]. Building & Environment, 2005, 40(10):41-45.英文原文A Brief Description of Interior DecorationY Miyazaki一、An interior design element1 Spatial elementsThe rationalization of space and giving people a sense of beauty is the basic task of design. We must dare to explore the new image of the times and technologies that are endowed with space. We should not stick to the spatial image formed in the past.2 color requirementsIn addition to affecting the visual environment, indoor colors also directly affect people's emotions and psychology. Scientific use of color is good for work and helps health. The proper color processing can meet the functional requirements and achieve the beauty effect. In addition to observing the general laws of color, interior colors also vary with the aesthetics of the times.3 light requirementsHumans love the beauty of nature and often direct sunlight into theinterior to eliminate the sense of darkness and closure in the interior, especially the top light and the soft diffuse light, making the interior space more intimate and natural. The transformation of light and shadow makes the interior richer and more colorful, giving people a variety of feelings.4 decorative elementsThe indispensable building components such as columns, walls, and the like in the entire indoor space are combined with the function and need to be decorated to jointly create a perfect indoor environment. By making full use of the texture characteristics of different decorative materials, you can achieve a variety of interior art effects with different styles, while also reflecting the historical and cultural characteristics of the region.5 furnishingsIndoor furniture, carpets, curtains, etc., are all necessities of life. Their shapes are often furnished and most of them play a decorative role. Practicality and decoration should be coordinated with each other, and the functions and forms of seeking are unified and changed so that the interior space is comfortable and full of personality.6 green elementsGreening in interior design is an important means to improve the indoor environment. Indoor flowering trees are planted, and the use ofgreenery and small items to play a role in diffusing indoor and outdoor environments, expanding the sense of interior space, and beautifying spaces all play an active role.二、The basic principles of interior design1 interior decoration design to meet the functional requirementsThe interior design is based on the purpose of creating a good indoor space environment, so as to rationalize, comfort, and scientize the indoor environment. It is necessary to take into account the laws of people's activities to handle spatial relationships, spatial dimensions, and spatial proportions; to rationally configure furnishings and furniture, and to properly resolve indoor environments. V entilation, lighting and lighting, pay attention to the overall effect of indoor tone.2 interior design to meet the spiritual requirementsThe spirit of interior design is to influence people's emotions and even influence people's will and actions. Therefore, we must study the characteristics and laws of people's understanding; study the emotions and will of people; and study the interaction between people and the environment. Designers must use various theories and methods to impact people's emotions and sublimate them to achieve the desired design effect. If the indoor environment can highlight a certain concept and artistic conception, then it will have a strong artistic appeal and better play its role in spiritual function.3 Interior design to meet modern technical requirementsThe innovation of architectural space is closely related to the innovation of structural modeling. The two should be harmonized and unified, fully considering the image of the structural Sino-U.S. and integrating art and technology. This requires that interior designers must possess the necessary knowledge of the type of structure and be familiar with and master the performance and characteristics of the structural system. Modern interior design is in the category of modern science and technology. To make interior design better meet the requirements of spiritual function, we must maximize the use of the latest achievements in modern science and technology.4 Interior design must meet the regional characteristics and national style requirementsDue to differences in the regions where people live, geographical and climatic conditions, the living habits of different ethnic groups are not the same as cultural traditions, and there are indeed great differences in architectural styles. China is a multi-ethnic country. The differences in the regional characteristics, national character, customs, and cultural literacy of various ethnic groups make indoor decoration design different. Different styles and features are required in the design. We must embody national and regional characteristics to evoke people’s national self-respect and self-confidence.三、Points of interior designThe interior space is defined by the enclosure of the floor, wall, and top surface, thus determining the size and shape of the interior space. The purpose of interior decoration is to create a suitable and beautiful indoor environment. The floor and walls of the interior space are the backdrop for people and furnishings and furnishings, while the differences on the top surface make the interior space more varied.1 Base decoration ----- Floor decorationThe basic surface ----- is very important in people's sights. The ground floor is in contact with people, and the line of sight is near, and it is in a dynamic change. It is one of the important factors of interior decoration. Meet the following principles:2 The base should be coordinated with the overall environment to complement each other and set off the atmosphereFrom the point of view of the overall environmental effect of space, the base should be coordinated with the ceiling and wall decoration. At the same time, it should play a role in setting off the interior furniture and furnishings.3 Pay attention to the division, color and texture of the ground patternGround pattern design can be roughly divided into three situations: The first is to emphasize the independent integrity of the pattern itself,such as meeting rooms, using cohesive patterns to show the importance of the meeting. The color should be coordinated with the meeting space to achieve a quiet, focused effect; the second is to emphasize the pattern of continuity and rhythm, with a certain degree of guidance and regularity, and more for the hall, aisle and common space; third It emphasizes the abstractness of the pattern, freedom, and freedom, and is often used in irregular or layout-free spaces.4 Meeting the needs of the ground structure, construction and physical properties of the buildingWhen decorating the base, attention should be paid to the structure of the ground floor. In the premise of ensuring safety, it is convenient for construction and construction. It cannot be a one-sided pursuit of pattern effects, and physical properties such as moisture-proof, waterproof, thermal insulation, and thermal insulation should be considered. need. The bases are available in a wide variety of types, such as: wooden floors, block floors, terrazzo floors, plastic floors, concrete floors, etc., with a wide variety of patterns and rich colors. The design must be consistent with the entire space environment. Complementary to achieve good results.四、wall decorationIn the scope of indoor vision, the vertical line of sight between the wall and the person is in the most obvious position. At the same time, thewall is the part that people often contact. Therefore, the decoration of the wall is very important for the interior design. The following design principles must be met: 1 IntegrityWhen decorating a wall, it is necessary to fully consider the unity with other parts of the room, and to make the wall and the entire space a unified whole.2 PhysicalThe wall surface has a larger area in the interior space, and the status is more important and the requirements are higher. The requirements for sound insulation, warmth protection, fire prevention, etc. in the interior space vary depending on the nature of the space used, such as the guest room, high requirements. Some, while the average unit canteen, requiresa lower number.3 ArtistryIn the interior space, the decorative effect of the wall plays an important role in rendering and beautifying the indoor environment. The shape of the wall, the partition pattern, the texture and the interior atmosphere are closely related to each other. In order to create the artistic effect of the interior space, the wall The artistry of the surface itself cannot be ignored.The selection of wall decoration styles is determined according to the above principles. The forms are roughly the following: plasteringdecoration, veneering decoration, brushing decoration, coil decoration. Focusing on the coil decoration here, with the development of industry, there are more and more coils that can be used to decorate walls, such as: plastic wallpaper, wall cloth, fiberglass cloth, artificial leather, and leather. These materials are characterized by the use of It is widely used, flexible and free, with a wide variety of colors, good texture, convenient construction, moderate prices, and rich decorative effects. It is a material that is widely used in interior design.五、Ceiling decorationThe ceiling is an important part of the interior decoration, and it is also the most varied and attractive interface in the interior space decoration. It has a strong sense of perspective. Through different treatments, the styling of lamps and lanterns can enhance the space appeal and make the top surface rich in shape. Colorful, novel and beautiful.1 Design principlesPay attention to the overall environmental effects.The ceiling, wall surface and base surface together make up the interior space and jointly create the effects of the indoor environment. The design should pay attention to the harmonization of the three, and each has its own characteristics on a unified basis.The top decoration should meet the applicable aesthetic requirements.In general, the effect of indoor space should be lighter and lighter. Therefore, it is important to pay attention to the simple decoration of the top decoration, highlight the key points, and at the same time, have a sense of lightness and art.The top decoration should ensure the rationality and safety of the top structure. Cannot simply pursue styling and ignore safety2 top design(1) Flat roofThe roof is simple in construction, simple in appearance, and convenient in decoration. It is suitable for classrooms, offices, exhibition halls, etc. Its artistic appeal comes from the top shape, texture, patterns, and the organic configuration of the lamps.(2) Convex ceilingThis kind of roof is beautiful and colorful, with a strong sense of three-dimensionality. It is suitable for ballrooms, restaurants, foyers, etc. It is necessary to pay attention to the relationship between the primary and secondary relationships and the height difference of various concavo-convex layers. It is not appropriate to change too much and emphasize the rhythm of rhythm and the artistry of the overall space. .(3) Suspended ceilingV arious flaps, flat plates or other types of ceilings are hung under the roof load-bearing structures. These ceilings are often used to meetacoustic or lighting requirements or to pursue certain decorative effects. They are often used in stadiums, cinemas, and so on. In recent years, this type of roof has also been commonly used in restaurants, cafes, shops, and other buildings to create special aesthetics and interests.(4) Well format ceilingIt is in the form of a combined structural beam, in which the main and secondary beams are staggered and the relationship between the wells and beams, together with a ceiling of lamps and gypsum floral designs, is simple and generous, with a strong sense of rhythm.(5) Glass ceilingThe halls and middle halls of modern large-scale public buildings are commonly used in this form, mainly addressing the needs of large-scale lighting and indoor greening, making the indoor environment richer in natural appeal, and adding vitality to large spaces. It is generally in the form of a dome, a cone, and a zigzag. In short, interior decoration design is a comprehensive discipline, involving many disciplines such as sociology, psychology, and environmental science, and there are many things that we need to explore and study. This article mainly elaborated the basic principles and design methods of interior decoration design. No matter what style belongs to the interior design door, this article gives everyone a more in-depth understanding and comprehension of interior design. If there are inadequacies, let the criticism correct me.中文译文室内装饰简述Y Miyazaki一室内装饰设计要素1 空间要素空间的合理化并给人们以美的感受是设计基本的任务。
外文文献原文
HENAN INSTITUTE OF ENGINEERING文献翻译题目设备更新的技术经济分系学生姓名冯军峰专业班级工业工程 1042 学号201011104211系（部）管理工程学院指导教师(职称)朱伟完成时间 2014 年 2 月 20 日Technology Hardware and Equipment Industry1. AbstractThe technology hardware and equipment industry is very lucrative and ever evolving. ACER is one of the biggest players in the industry and has undergone several changes in its 34 years of existence. The rate at which it has been growing is a marvel to many. Its headquarters being in Taiwan which is of no known significance in the committee of big economies and tremendous impact on the global stage from there has made its strategy to be revered. ACER's products are for the cost conscious individuals although they are not known for quality.This report looks into the several changes that have occurred in ACER and how it dealt with them. It further examines its business strategy and IS strategy. Based on the several analyses made such as, SWOT, Ansoff and PESTLE, recommendations were made and future directions proffere2. IntroductionTechnology is the application of science to profitable use, which in most cases is solving an industrial problem. However, in modern parlance and to a lay man, technology is a term used to describe equipment or electronic devices for work or leisure. The phrase 'latest technology' is mostly used to describe digital equipment with the most recent mind blowing feature which in most cases become outdated after just a few months or years.The Technology hardware and equipment market is an ever growing industry with a constant need for expansion due to high demand for technology products. Owing to this, one of the most vibrant sectors in the world's most developed economies is usually the technology hardware and equipment market. Quoted companies in this sector experience high volumes of trade in stock exchanges in these leading economies.ACER is a company in the technology hardware and equipment industry that has gone through and surmounted many challenges in its 34 years of existence. ACER is the fastest growing among the big computer brands (Woyke 2010). In this report, we are going to look into the background of technology hardware and equipment market, overview and history of ACER, business description and organisational structure. In addition, we will examine the effect of cultural change, IS/IT Strategy and current market strategies Porter's five forces analysis, SWOT analysis, PESTLE and recommendations based on a Ansoff analysis and future directions of ACER.3. Technology Hardware and equipment MarketTechnology hardware and equipment industry is one that influences our daily lives. It is practically unimaginable in the present dynamic and fast pacing society to go a whole day without using equipment from this industry; ranging from mobile phones to PDA's and laptops. Owing to the insatiable wants of humans for a better and easier life, the technology industry is constantly evolving, developing new, more efficient and cost effective ways to deliver equipment to better their lot. Hence, the size of the industry keeps growing and is even in need for more players.Technology hardware and equipment industry can be defined as a market that deals with electronicequipment and gadgets, computers and their peripherals, communication equipment and other office electronics. The market value reflects end users spending (Datamonitor. 2009a).Some of the big players in the technology and hardware industry include Hewlett-Packard, International Business Machines corporation, Dell computer (Datamonitor. 2009a)corporation and of course, ACER which is the rising giant.The computer hardware and peripheral segment is the most lucrative in this industry accounting for about 38.2% of the industry's global value, electronic equipment and instruments, 36.4%, communication equipment, 18.4% and office electronics 7.0%. Figure 1 shows the share of the various devices in the technology hardware and equipment market.However, due to the recession and hence slashes in IT budgets of several companies in 2009 there was a decline of about 8.1% in the growth rate in this industry. Albeit the economic decline, innovations in technology and the need to upgrade equipment will boost and revive the industry in the nearest future. Table 1 below shows the annual growth rate of the technology hardware and equipment market. Before the recession, the CAGR was 5.9%, after the recession it slumped to 3.1%. Nonetheless, before then there was an average steady growth rate of about 1.98%, this shows the industry has potential.Hewlett-Packard company accounts for 5.3% of the global technology hardware and equipmentindustry's group value (Datamonitor. 2009a).However, ACER now sells 13.4% of the world's PCs, ahead of Dell's 12.4% but far behindHewlett-Packard's 21% (Bruce and Tim 2010). The pie chart in figure 2 below shows the market share of IBM, HP, Dell, ACER and others which like apple, nokia, LG, NEC, Sony etc.In recent times, Asia-Pacific has shown a high demand for technology hardware and equipment. America, the United States in particular has been the world's major consumer and producer of this industry's equipment. Production however, is shifting to the Asia region because of the cheap cost of labour. Europe's share of the market is about 28.79%. The others just trail behind, especially Africa where the illiteracy level is high and therefore the market cannot thrive. Below is a table that shows the global technology hardware and equipment industry group's value.4. History of ACERMr. Stan Shih, together with his wife, Ms. Carolyn Yeh, and five other partners co-founded Acer in 1976. Acer was originally known as Multitech. The company designed Taiwan's first mass produced computer product for export in 1976 and by 1985, the company began its expansion into overseas markets by setting up branch offices in Japan and Germany. Soon after, in 1990, the company acquired Altos, a manufacturer of UNIX computer systems. This was followed, in 1997, by the acquisition of Texas Instruments' mobile computing business.In 2000, Acer established its design and manufacturing services and Acer brand operations units and separated its original equipment manufacturing (OEM) and branded businesses from these units. In 2007 Acer acquired Gateway, one of the largest PC companies in the USA. In January 2008, Acer's subsidiaries, Acer Europe and Gateway acquired a controlling stake in PB Holding Company, the parent company of Packard Bell. In February 2008, the company announced its intention to launch low cost PCs. In June 2008, Acer launched Aspire one, the company's first Internet device. Aspire one is a communication device designed to provide mobile and wireless experience through continuous access to the Internet. In the next month, the company appointed Hsueh J. Sung to its board of directors. In June 2009, Acer joined Open Handset Alliance, a group of mobile and technology leaders who work towardschanging the mobile experience for consumers. Acer also announced plans to launch smart phones based on the Android, an open mobile platform of the alliance, in the fourth quarter of 2009. In the same month, Acer announced plans to launch its first Aspire One net book featuring the Android operating system to offer users wireless internet capability, in the fourth quarter of 2009(Datamonitor. 2009b).5. Business DescriptionACER is committed to developing easy-to-use and dependable products that meet customers' needs at the most affordable rates. Its long-term mission is Breaking the barriers between people and technology through the creation of empowering hardware, software and services (ACER-GROUP 2010a). It offers three main categories of products;∙computer peripherals∙consumer electronic productsPresently Acer is comprised of four different brands in which its products are sold. They are: ∙Acer∙Packard Bell∙eMachine and∙Gateway.These four brands produce different types of electronic products with distinguished brand characteristics to meet varying customer needs. The company operates in Taiwan, Europe, Asia, and North America. Its headquarters is in Taipei, Taiwan and employs about 7,000 people (ACER-GROUP 2010a).ACER is popular for its netbooks and aspire notebooks which are relatively affordable. Its other products include: servers and storage products, mp3 players, monitors etc. Services include business solutions and communication and technology solutions.Its products are sold by leading retailers, e-tailers and channel partners in Europe, Asia and America.In the bid to build a global reputation ACER has partnered with many international companies which include; CISCO systems, IBM, Hitachi, Yahoo, General Electric and many other companies. These alliances have helped ACER acquire a number of companies in markets such as Mexico and other developing countries and also introduced ground breaking innovations such as Acer-Hitachi SMS 100, a storage device designed for the needs of SMEs. ACER has helped potential businesses such as Pack OS to grow, and also gotten some patent litigations, that of HP being the most popular.Below is a diagram showing the market share of ACER and other big players in the world wide notebook market. As seen below ACER's rising profile from 2003 to quarter 1, 2010 has been relatively stable despite the economic down turn in 2009.5.1 SWOT ANALYSISACER is involved in the manufacturing of electronic hardware. It does the research, design and also distribution of its products. The four strong brands in which ACER operates under gives it versatility and thus an advantage over the other companies in the technology hardware and equipment market. Also, ACER's presence and growth in the net book market makes it a force to reckon with. Nonetheless, strong competition and innovations such as iPad by apple in the note book market could influence its market share and effective performance. The objective of every profit making venture is to get a higher return oninvestment and to have an edge over its competitors. To achieve this ACER must have a higher patronage from technology hardware consumers.5.1.1 Strengths∙Strong corporate culture. The key elements here being it offers a clear corporate vision; it is supported by corporate values consistent with the aims of the company and aligned with thepersonal values of organization members; a high value is placed on employees at all levels and there is extensive employee interaction across many levels; and the culture is adaptable, adjusting to external conditions, and consistent, treating all employees equally and fairly (El-Nadi 2010).∙Alliances for potential development. ACER has deals with a number of companies such as CISCO systems, IBM, Hitachi, Yahoo, General Electric etc. With these partnerships ACER has brought about great innovations as well as created room for expansion of its business. In addition, it has helped in building its brand name and put it on a global pedestal. Having acquired Gateway in 2007 and Packard Bell in 2008, there seem to be more prospects in sight for acquisition.∙Strong financial position. At the moment ACER has consolidated revenue of $5.1 billion for the first quarter of 2010 and operating income of $137.8 million (ACER Group 2010). This gives it the financial backing to implement whatever innovations and ideas to give it an edge over itscompetitors.∙Supporting employee participation and ideas. Employees are given the free will to makesuggestions and give ideas they think will better a product or yield higher efficiency of the system.5.1.2 Weaknesses∙Uniformity in culture and demography across acquired companies. Inducing the ACERcorporate culture and values in the acquired companies is tasking and demanding. Since it cuts across several continents with different demographies and cultures ACER may as well allow them to continue if the system is efficient.∙Managing its growth. Due to the rate at which ACER is growing coordination might seem a little tasking. Looking at the organisational structure in figure 4 although the subsidiaries aresemi-autonomous if there is a lawsuit to be attended to in China; it has to go to the corporateheadquarters in Taiwan first before it can be tackled.∙Limited operating income. ACER presently has an operating income of $137.8 million, this is only a fraction of the biggest player in the market HP whose net income for same period is $2.3 billion∙Dependence on the European market. Bulk of ACERs income comes from Europe especially UK. Between 2007 and 2009, an average of 51% of its revenue came from this region. With the uncertainty of UK's economy, there will be hampering of its forecasts.5.1.3 Opportunities∙Economic recovery. Many companies cut their IT budgets in 2009 due to the economic down turn. However, in 2010 the economy has started improving and will likely have an effect oncompanies which might increase their IT budgets. Hence, there is likely to be a massive purchase of computer hardware.∙Growing knowledge of IT and internet. The internet has become part of everyday's life.E-commerce and e-tailing have revolutionised the internet and there is a growing need for computer hard wares. Using Nigeria as an example, between 2000 and 2010 the growth of internet users has grown from a meagre 0.1% to about 16% of the population.∙Growing smart phone market. Today smart phones can be used to do just about anything a PC does. Smart phones can now be used to pay bills and even make purchases.∙Development of software with varying capabilities. ACER is in a unique position, haven been trusted for relatively cheap and reliable product. This trust can be harnessed by building the required hardware to suit the needs of the latest soft wares such as new operating systems etc at a cheap rate.5.1.4 Threats∙Minimal Demand. In the face of economic meltdown there has been a low demand for computer hardware. Improvement of the present situation is still uncertain.∙New innovations from competitors. The introduction of iPad by Apple might bring about adecrease in the sale of netbooks since it offers virtually everything a netbook has such as wi-fi and much more.∙Market congestion. There are so many products in the market and competitors are finding better means for distribution of their products. ACER might be forced to further reduce their prices or find a better alternative to compete effectively in the market.∙Law suits. ACER had about 10 patent law suits from HP. These have long been resolvedalthough it will most likely have an effect on its brand as a copy cat.∙Exchange rate. ACERs products sells in a number of countries worldwide and thus exchange rates will have an effect on its income and pricings. If the exchange rate does not favour ACER it will record losses.技术硬件及设备行业/essays/information-technology/technology-hardware-and-equipment-industry.php1,摘要技术硬件及设备行业是一个利润丰厚、不断变化发展的行业。
内部控制外文文献及翻译
中文4500字本科生毕业设计（论文）外文原文及译文所在系管理系学生姓名郭淼专业会计学班级学号指导教师2013年6月外文文献原文及译文Internal ControlEmergence and development of the theory of the evolution of the internal controlInternal control in Western countries have a long history of development, according to the internal control characteristics at different stages of development, the development of internal control can be divided into four stages, namely the internal containment phase, the internal control system phase, the internal control structure phase, overall internal control framework stage.Internal check stages: infancy internal controlBefore the 1940s, people used to use the concept of internal check. This is the embryonic stage of internal control. "Keshi Accounting Dictionary" definition of internal check is "to provide effective organization and mode of operation, business process design errors and prevent illegal activities occur. Whose main characteristic is any individual or department alone can not control any part of one or the right way to conduct business on the division of responsibility for the organization, each business through the normal functioning of other individuals or departments for cross-examination or cross-control. designing effective internal check to ensure that all businesses can complete correctly after a specified handler in the process of these provisions, the internal containment function is always an integral part. "The late 1940s, the internal containment theory become important management methods and concepts. Internal check on a "troubleshooting a variety of measures" for the purpose of separation of duties and account reconciliation as a means to money and accounting matters and accounts as the main control object primary control measures. Its characteristics are account reconciliation and segregation of duties as the main content and thus cross-examination or cross-control. In general, the implementation of internal check function can be roughly divided into the following four categories: physical containment; mechanical containment; institutional containment; bookkeeping contain. The basic idea is to contain the internal "security is the result of checks and balances," which is based on two assumptions: First: two or more persons1西安交通大学城市学院本科毕业设计（论文）or departments making the same mistake unconsciously chance is very small; Second: Two or more the possibility of a person or department consciously partnership possibility of fraud is much lower than a single person or department fraud. Practice has proved that these assumptions are reasonable, internal check mechanism for organizations to control, segregation of duties control is the foundation of the modern theory of internal control.Internal control system phases:generating of internal controlThe late1940s to the early1970s, based on the idea of internal check, resulting in the concept of the internal control system, which is the stage in the modern sense of internal control generated. Industrial Revolution has greatly promoted the major change relations of production, joint-stock company has gradually become the main form of business organization of Western countries, in order to meet the requirements of prevailing socio-economic relations,to protect the economic interests of investors and creditors, the Western countries have legal requirements in the form of strengthen the corporate financial and accounting information as well as internal management of this economic activity.In 1934, the "securities and exchange act" issued by the U.S. government for the first time puts forward the concept of "internal accounting control", the implementation of general and special authorization book records, trading records, and compared different remedial measures such as transaction assets. In 1949, the American institute of certified public accountants (AICPA) belongs to the audit procedures of the committee (CPA) in the essential element of internal control: the system coordination, and its importance to management department and the independence of certified public accountants' report, the first official put forward the definition of internal control: "the design of the internal control includes the organization and enterprise to take all of the methods and measures to coordinate with each other. All of these methods and measures used to protect the property of the enterprise, to check the accuracy of accounting information, improve the efficiency of management, promote enterprise stick to established management guidelines." The definition from the formulation and perfecting the inner control of the organization, plan, method and measures such as rules and regulations to implement internal control, break through the limitation of control related to the financial and accounting department directly, the four objectives of internal control, namely the enterprise in commercial2外文文献原文及译文activities to protect assets, check the veracity and reliability of financial data, improve the work efficiency, and promote to management regulations. The definition of positive significance is to help management authorities to strengthen its management, but the scope of limitation is too broad. In 1958, the commission issued no. 29 audit procedures bulletin "independent auditors evaluate the scope of internal control", according to the requirements of the audit responsibility, internal control can be divided into two aspects, namely, the internal accounting control and internal management control. The former is mainly related to the first two of the internal control goal, the latter mainly relates to the internal control after two goals. This is the origin of the internal control system of "dichotomy". Because the concept of management control is vague and fuzzy, in the actual business line between internal control and internal accounting control is difficult to draw. In order to clear the relations between the two, in 1972 the American institute of certified public accountants in the auditing standards announcement no. 1, this paper expounds the internal management control and internal accounting control: the definition of "internal management control including, but not limited to organization plan, and the administrative department of the authorized approval of economic business decision-making steps on the relevant procedures and records. This authorization of items approved activities is the responsibility of management, it is directly related to the management department to perform the organization's business objectives, is the starting point of the economic business accounting control." At the same time, the important content of internal accounting control degree and protect assets, to ensure that the financial records credibility related institutions plans, procedures and records. After a series of changes and redefine the meaning of the internal control is more clear than before and the specification, increasingly broad scope, and introduces the concept of internal audit, has received recognition around the world and references, the internal control system is made.The internal control structure stage: development of the internal controlTheory of internal control structure formed in the 90 s to the 1980 s, this phase of western accounting audit of internal control research focus gradually from the general meaning to specific content to deepen. During this period, the system management theory has become the new management idea, it says: no physical objects in the world are composed of elements of3西安交通大学城市学院本科毕业设计（论文）system, due to the factors, there exists a complicated nonlinear relationship between system must have elements do not have new features, therefore, should be based on the whole the relationship between elements. System management theory will enterprise as a organic system composed of subsystems on management, pay attention to the coordination between the subsystems and the interaction with the environment. In the modern company system and system management theory, under the concept of early already cannot satisfy the need of internal control systems. In 1988, the American institute of certified public accountants issued "auditing standards announcement no. 55", in the announcement, for the first time with the word "internal control structure" to replace the original "internal control", and points out that: "the enterprise's internal control structure including provide for specific target reasonable assurance of the company set up all kinds of policies and procedures". The announcement that the internal control structure consists of control environment, accounting system (accounting system), the control program "three components, the internal control as a organic whole composed of these three elements, raised to the attention of the internal control environment.The control environment, reflecting the board of directors, managers, owners, and other personnel to control the attitude and behavior. Specific include: management philosophy and operating style, organizational structure, the function of the board of directors and the audit committee, personnel policies and procedures, the way to determine the authority and responsibility, managers control method used in the monitoring and inspection work, including business planning, budgeting, forecasting, profit plans, responsibility accounting and internal audit, etc.Accounting systems, regulations of various economic business confirmation, the collection, classification, analysis, registration and preparing method. An effective accounting system includes the following content: identification and registration of all legitimate economic business; Classifying the various economic business appropriate, as the basis of preparation of statements; Measuring the value of economic business to make its currency's value can be recorded in the financial statements; Determine the economic business events, to ensure that it recorded in the proper accounting period; Describe properly in the financial statements of4外文文献原文及译文economic business and related content.The control program, refers to the management policies and procedures, to ensure to achieve certain purpose. It includes economic business and activity approval; Clear division of the responsibility of each employee; Adequate vouchers and bills setting and records; The contact of assets and records control; The business of independent audit, etc. Internal structure of control system management theory as the main control thought, attaches great importance to the environmental factors as an important part of internal control, the control environment, accounting system and control program three elements into the category of internal control; No longer distinguish between accounting control and management control, and uniform in elements describe the internal control, think the two are inseparable and contact each other.Overall internal control framework stages: stage of internal controlAfter entering the 1990 s, the study of internal control into a new stage. With the improvement of the corporate governance institutions, the development of electronic information technology, in order to adapt to the new economic and organizational form, using the new management thinking, "internal control structure" for the development of "internal control to control the overall framework". In 1992, the famous research institutions internal control "by organization committee" (COSO) issued a landmark project - "internal control - the whole framework", also known as the COSO report, made the unification of the internal control system framework. In 1994, the report on the supplement, the international community and various professional bodies widely acknowledged, has wide applicability. The COSO report is a historical breakthrough in the research of internal control theory, it will first put forward the concept of internal control system of the internal control by the original planar structure for the development of space frame model, represents the highest level of the studies on the internal control in the world.The COSO report defines internal control as: "designed by enterprise management, to achieve the effect and efficiency of the business, reliable financial reporting and legal compliance goals to provide reasonable assurance, by the board of directors, managers and other staff to5西安交通大学城市学院本科毕业设计（论文）implement a process." By defining it can be seen that the COSO report that internal control is a process, will be affected by different personnel; At the same time, the internal control is a in order to achieve business objectives the group provides reasonable guarantee the design and implementation of the program. The COSO report put forward three goals and the five elements of internal control. The three major target is a target business objectives, information and compliance. Among them, the management goal is to ensure business efficiency and effectiveness of the internal control; Information goal is refers to the internal control to ensure the reliability of the enterprise financial report; Compliance goal refers to the internal controls should abide by corresponding laws and regulations and the rules and regulations of the enterprise.COSO report that internal control consists of five elements contact each other and form an integral system, which is composed of five elements: control environment, risk assessment, control activities, information and communication, monitoring and review.Control Environment: It refers to the control staff to fulfill its obligation to carry out business activities in which the atmosphere. Including staff of honesty and ethics, staff competence, board of directors or audit committee, management philosophy and management style, organizational structure, rights and responsibilities granted to the way human resources policies and implementation.Risk assessment: It refers to the management to identify and take appropriate action to manage operations, financial reporting, internal or external risks affecting compliance objectives, including risk identification and risk analysis. Risk identification including external factors (such as technological development, competition, changes in the economy) and internal factors (such as the quality of the staff, the company nature of activities, information systems handling characteristics) to be checked. Risk analysis involves a significant degree of risk estimates to assess the likelihood of the risk occurring, consider how to manage risk.Control activities: it refers to companies to develop and implement policies and procedures, and 6外文文献原文及译文to take the necessary measures against the risks identified in order to ensure the unit's objectives are achieved. In practice, control activities in various forms, usually following categories: performance evaluation, information processing, physical controls, segregation of duties.Information and communication: it refers to enable staff to perform their duties, to provide staff with the exchange and dissemination of information as well as information required in the implementation, management and control operations process, companies must identify, capture, exchange of external and internal information. External information, including market share, regulatory requirements and customer complaints and other information. The method of internal information including accounting system that records created by the regulatory authorities and reporting of business and economic matters, maintenance of assets, liabilities and owners' equity and recorded. Communication is so that employees understand their responsibilities to maintain control over financial reporting. There are ways to communicate policy manuals, financial reporting manuals, reference books, as well as examples such as verbal communication or management.Monitoring: It refers to the evaluation of internal controls operation of the quality of the process, namely the reform of internal control, operation and improvement activities evaluated. Including internal and external audits, external exchanges.Five elements of internal control system is actually wide-ranging, interrelated influence each other. Control environment is the basis for the implementation of other control elements; control activities must be based on the risks faced by companies may have a detailed understanding and assessment basis; while risk assessment and control activities within the enterprise must use effective communication of information; Finally, effective monitoring the implementation of internal control is a means to protect the quality. Three goals and five elements for the formation and development of the internal control system theory laid the foundation, which fully reflects the guiding ideology of the modern enterprise management idea that security is the result of systems management. COSO report emphasizes the integration framework and internal control system composed of five elements, the framework for the7西安交通大学城市学院本科毕业设计（论文）establishment of an internal control system, operation and maintenance of the foundation.In summary,because of social, economic and environmental change management, internal control functions along with the changes, in order to guide the evolution of the internal control theory. As can be seen from the history of the development of internal control theory, often derived from the internal control organizational change management requirements, from an agricultural economy to an industrial economy, innovation management methods and tools for the development of the power to bring internal controls.From the internal containment center,controlled by the internal organization of the mutual relations between the internal control of various subsystems and went to COSO as the representative to the prevention and management loopholes to prevent the goal, through the organization of control and information systems,to achieve the overall system optimization of modern internal sense of control theory, from Admiral time, corresponding to the two economic revolution.Therefore, in the analysis of foreign internal control theory and Its Evolution, requires a combination of prevailing socio-economic environment and business organization and management requirements, so as to understand the nature of a deeper internal control theory of development.8外文文献原文及译文译文：内部控制Ge.McVay一、内部控制理论的产生与发展演进内部控制在西方国家已经有比较长的发展历史，根据内部控制在不同发展阶段的特征，可以将内部控制的发展分为四个阶段，即内部牵制阶段、内部控制制度阶段、内部控制结构阶段、内部控制整体框架阶段。
食品科学与工程外文参考文献译文及原文
本科毕业设计（论文）外文参考文献译文及原文学院轻工化工学院专业食品科学与工程年级班别2006级（2）班学号3106002145学生姓名龚张卫指导教师姜燕2010 年 6 月目录1. 介绍 (1)2. 材料与方法 (1)2.1 原料 (2)2.1.1市售猕猴桃果酱/果酱 (2)2.1.2水果............................................................ .......... (2)2.1.3渗透溶液............................................. (2)2.1.4胶凝剂 (3)2.1.5酸度调节剂 (3)2.2猕猴桃果酱/橙果酱详细制作过程 (3)2.2.1传统制作过程 (3)2.2.2渗透失水水果制作过程 (3)2.3分析 (3)2.3.1理化性质 (3)2.3.2 色泽测量......... ...... ...... ...................... . ...... . (3)2.3.3 流动性能......................................... ... ............................ . (4)3. 结果和讨论 (4)结论 (9)参考资料 (9)渗透脱水水果制作果酱的研究E. García-Martínez, G. Ruiz-Diaz, J. Martínez-Monzó, M. M. Camacho, N.Martínez-Navarrete and A. Chiralt瓦伦西亚大学食品技术系，巴伦西亚，46071摘要：果酱是由水果和糖按比例混合制得的产品，最终产品含有最小30％果肉成分和最低45糖度值。
传统果酱制作需要通过热处理来浓缩加工，从改变感官和营养特性提高产品质量，营养特性的改变主要是果酱中抗坏血酸损耗量的多少。
论文外文文献翻译
论文外文文献翻译以下是一篇700字左右的论文外文文献翻译：原文题目：The Role of Artificial Intelligence in Medical Diagnostics: A Review原文摘要：In recent years, there has been a growing interest in the use of artificial intelligence (AI) in the field of medical diagnostics. AI has the potential to improve the accuracy and efficiency of medical diagnoses, and can assist clinicians in making treatment decisions. This review aims to examine the current state of AI in medical diagnostics, and discuss its advantages and limitations. Several AI techniques, including machine learning, deep learning, and natural language processing, are discussed. The review also examines the ethical and legal considerations associated with the use of AI in medical diagnostics. Overall, AI has shown great promise in improving medical diagnostics, but further research is needed to fully understand its potential benefits and limitations.AI在医学诊断中发挥的作用：一项综述近年来，人工智能（AI）在医学诊断领域的应用引起了越来越多的关注。
土木工程专业钢筋混凝土结构设计毕业论文外文文献翻译及原文
毕业设计（论文）外文文献翻译文献、资料中文题目：钢筋混凝土结构设计文献、资料英文题目：DESIGN OF REINFORCED CONCRETE STRUCTURES 文献、资料来源：文献、资料发表（出版）日期：院（部）：专业：土木工程班级：姓名：学号：指导教师：翻译日期： 2017.02.14毕业设计（论文）外文参考资料及译文译文题目：DESIGN OF REINFORCED CONCRETE STRUCTURES原文：DESIGN OF REINFORCED CONCRETESTRUCTURES1. BASIC CONCERPTS AND CHARACERACTERISTICS OF REINFORCED CONCRETEPlain concrete is formed from hardened mixture of cement, water , fine aggregate , coarse aggregate (crushed stone or gravel ) , air and often other admixtures . The plastic mix is placed and consolidated in the formwork, then cured to accelerate of the chemical hydration of hen cement mix and results in a hardened concrete. It is generally known that concrete has high compressive strength and low resistance to tension. Its tensile strength is approximatelyone-tenth of its compressive strength. Consequently, tensile reinforcement in the tension zone has to be provided to supplement the tensile strength of the reinforced concrete section.For example, a plain concrete beam under a uniformly distributed load q is shown in Fig .1.1(a), when the distributed load increases and reaches a value q=1.37KN/m , the tensile region at the mid-span will be cracked and the beam will fail suddenly . A reinforced concrete beam if the same size but has to steel reinforcing bars (2φ16) embedded at the bottom under a uniformly distributed load q is shown in Fig.1.1(b). The reinforcing bars take up the tension there after the concrete is cracked. When the load q is increased, the width of the cracks, the deflection and thestress of steel bars will increase . When the steel approaches the yielding stress ƒy , thedeflection and the cracked width are so large offering some warning that the compression zone . The failure load q=9.31KN/m, is approximately 6.8 times that for the plain concrete beam.Concrete and reinforcement can work together because there is a sufficiently strong bond between the two materials, there are no relative movements of the bars and the surrounding concrete cracking. The thermal expansion coefficients of the two materials are 1.2×10-5K-1 for steel and 1.0×10-5~1.5×10-5K-1 for concrete .Generally speaking, reinforced structure possess following features :Durability .With the reinforcing steel protected by the concrete , reinforced concreteFig.1.1Plain concrete beam and reinforced concrete beamIs perhaps one of the most durable materials for construction .It does not rot rust , and is not vulnerable to efflorescence .(2)Fire resistance .Both concrete an steel are not inflammable materials .They would not be affected by fire below the temperature of 200℃when there is a moderate amount of concrete cover giving sufficient thermal insulation to the embedded reinforcement bars.(3)High stiffness .Most reinforced concrete structures have comparatively large cross sections .As concrete has high modulus of elasticity, reinforced concrete structures are usuallystiffer than structures of other materials, thus they are less prone to large deformations, This property also makes the reinforced concrete less adaptable to situations requiring certainflexibility, such as high-rise buildings under seismic load, and particular provisions have to be made if reinforced concrete is used.(b)Reinfoced concrete beam(4)Locally available resources. It is always possible to make use of the local resources of labour and materials such as fine and coarse aggregates. Only cement and reinforcement need to be brought in from outside provinces.(5)Cost effective. Comparing with steel structures, reinforced concrete structures are cheaper.(6)Large dead mass, The density of reinforced concrete may reach2400~2500kg/pare with structures of other materials, reinforced concrete structures generally have a heavy dead mass. However, this may be not always disadvantageous, particularly for those structures which rely on heavy dead weight to maintain stability, such as gravity dam and other retaining structure. The development and use of light weight aggregate have to a certain extent make concrete structure lighter.(7)Long curing period.. It normally takes a curing period of 28 day under specified conditions for concrete to acquire its full nominal strength. This makes the progress of reinforced concrete structure construction subject to seasonal climate. The development of factory prefabricated members and investment in metal formwork also reduce the consumption of timber formwork materials.(8)Easily cracked. Concrete is weak in tension and is easily cracked in the tension zone. Reinforcing bars are provided not to prevent the concrete from cracking but to take up the tensile force. So most of the reinforced concrete structure in service is behaving in a cracked state. This is an inherent is subjected to a compressive force before working load is applied. Thus the compressed concrete can take up some tension from the load.2. HISTOEICAL DEVELPPMENT OF CONCRETE STRUCTUREAlthough concrete and its cementitious(volcanic) constituents, such as pozzolanic ash, have been used since the days of Greek, the Romans, and possibly earlier ancient civilization, the use of reinforced concrete for construction purpose is a relatively recent event, In 1801, F. Concrete published his statement of principles of construction, recognizing the weakness if concrete in tension, The beginning of reinforced concrete is generally attributed to Frenchman J. L. Lambot, who in 1850 constructed, for the first time, a small boat with concrete for exhibition in the 1855 World’s Fair in Paris. In England, W. B. Wilkinson registered a patent for reinforced concrete l=floor slab in 1854.J.Monier, a French gardener used metal frames as reinforcement to make garden plant containers in 1867. Before 1870, Monier had taken a series of patents to make reinforcedconcrete pipes, slabs, and arches. But Monier had no knowledge of the working principle of this new material, he placed the reinforcement at the mid-depth of his wares. Then little construction was done in reinforced concrete. It is until 1887, when the German engineers Wayss and Bauschinger proposed to place the reinforcement in the tension zone, the use of reinforced concrete as a material of construction began to spread rapidly. In1906, C. A. P. Turner developed the first flat slab without beams.Before the early twenties of 20th century, reinforced concrete went through the initial stage of its development, Considerable progress occurred in the field such that by 1910 the German Committee for Reinforced Concrete, the Austrian Concrete Committee, the American Concrete Institute, and the British Concrete Institute were established. Various structural elements, such as beams, slabs, columns, frames, arches, footings, etc. were developed using this material. However, the strength of concrete and that of reinforcing bars were still very low. The common strength of concrete at the beginning of 20th century was about 15MPa in compression, and the tensile strength of steel bars was about 200MPa. The elements were designed along the allowable stresses which was an extension of the principles in strength of materials.By the late twenties, reinforced concrete entered a new stage of development. Many buildings, bridges, liquid containers, thin shells and prefabricated members of reinforced concrete were concrete were constructed by 1920. The era of linear and circular prestressing began.. Reinforced concrete, because of its low cost and easy availability, has become the staple material of construction all over the world. Up to now, the quality of concrete has been greatly improved and the range of its utility has been expanded. The design approach has also been innovative to giving the new role for reinforced concrete is to play in the world of construction.The concrete commonly used today has a compressive strength of 20~40MPa. For concrete used in pre-stressed concrete the compressive strength may be as high as 60~80MPa. The reinforcing bars commonly used today has a tensile strength of 400MPa, and the ultimate tensile strength of prestressing wire may reach 1570~1860Pa. The development of high strength concrete makes it possible for reinforced concrete to be used in high-rise buildings, off-shore structures, pressure vessels, etc. In order to reduce the dead weight of concrete structures, various kinds of light concrete have been developed with a density of 1400~1800kg/m3. With a compressive strength of 50MPa, light weight concrete may be used in load bearing structures. One of the best examples is the gymnasium of the University of Illinois which has a span of 122m and is constructed of concrete with a density of 1700kg/m3. Another example is the two 20-story apartment houses at the Xi-Bian-Men in Beijing. The walls of these two buildings are light weight concrete with a density of 1800kg/m3.The tallest reinforced concrete building in the world today is the 76-story Water Tower Building in Chicago with a height of 262m. The tallest reinforced concrete building in China today is the 63-story International Trade Center in GuangZhou with a height a height of 200m. The tallest reinforced concrete construction in the world is the 549m high International Television Tower in Toronto, Canada. He prestressed concrete T-section simply supported beam bridge over the Yellow River in Luoyang has 67 spans and the standard span length is 50m.In the design of reinforced concrete structures, limit state design concept has replaced the old allowable stresses principle. Reliability analysis based on the probability theory has very recently been introduced putting the limit state design on a sound theoretical foundation. Elastic-plastic analysis of continuous beams is established and is accepted in most of the design codes. Finite element analysis is extensively used in the design of reinforced concrete structures and non-linear behavior of concrete is taken into consideration. Recent earthquake disasters prompted the research in the seismic resistant reinforced of concrete structures. Significant results have been accumulated.3. SPECIAL FEATURES OF THE COURSEReinforced concrete is a widely used material for construction. Hence, graduates of every civil engineering program must have, as a minimum requirement, a basic understanding of the fundamentals of reinforced concrete.The course of Reinforced Concrete Design requires the prerequisite of Engineering Mechanics, Strength of Materials, and some if not all, of Theory of Structures, In all these courses, with the exception of Strength of Materials to some extent, a structure is treated of in the abstract. For instance, in the theory of rigid frame analysis, all members have an abstract EI/l value, regardless of what the act value may be. But the theory of reinforced concrete is different, it deals with specific materials, concrete and steel. The values of most parameters must be determined by experiments and can no more be regarded as some abstract. Additionally, due to the low tensile strength of concrete, the reinforced concrete members usually work with cracks, some of the parameters such as the elastic modulus I of concrete and the inertia I of section are variable with the loads.The theory of reinforced concrete is relatively young. Although great progress has been made, the theory is still empirical in nature in stead of rational. Many formulas can not be derived from a few propositions, and may cause some difficulties for students. Besides, due to the difference in practice in different countries, most countries base their design methods on their own experience and experimental results. Consequently, what one learns in one country may be different in another country. Besides, the theory is still in a stage of rapid。
公路线形设计外文文献翻译英文参考
外文文献翻译(含：英文原文及中文译文)文献出处：Y Hassan. Geometric Design of Highways[J] Advances in Transportation Studies, 2016, 6(1):31-41.英文原文Geometric Design of HighwaysY HassanA. Alignment DesignThe alignment of a road is shown on the plane view and is a series of straight lines called tangents connected by circular curves. In modern practice it is common to interpose transition or spiral curves between tangents and circular curves.The line shape should be continuous, sudden changes from flat line to small radius curve or sudden change of long line end connected to small radius curve should be avoided, otherwise a traffic accident may occur. Similarly, arcs with different radii end-to-end (complex curves) or short straight lines between two arcs with different radii are bad lines unless an easing curve is inserted between arcs. The long, smooth curve is always a good line because it is beautifully lined and will not be abandoned in the future. However, it is not ideal that the two-way road line shape is composed entirely of curves, because some drivers always hesitate to pass through curved road segments. The long and slow curve is used in thesmaller corners. If you use a short curve, you will see "kinks." In addition, the design of the flat and vertical sections of the line should be considered comprehensively and should not be only one. No matter which, for example, when the starting point of the flat curve is near the vertex of the vertical curve, serious traffic accidents will occur.V ehicles driving on curved sections are subjected to centrifugal force, and they need a force of the same magnitude in the opposite direction due to the height and lateral friction to offset it. From the viewpoint of highway design, the high or horizontal friction cannot exceed a certain value. The maximum, these control values for a certain design speed may limit the curvature of the curve. In general, the curvature of a circular curve is represented by its radius. For the linear design, the curvature is often described by the curvature, ie, the central angle corresponding to the 100-foot curve, which is inversely proportional to the radius of the curve.A normal road arch is set in a straight section of the road, and the curve section is set to a super high, and an excessively gradual road section must be set between the normal section and the super high section. The usual practice is to maintain the design elevation of each midline of the road unchanged. By raising the outer edge and lowering the inner edge to form a super high, for the line shape where the straight line is directly connected with the circle curve, the super high should never start on the straight line before reaching the curve. At the other end of the curve at acertain distance to reach all the ultra-high.If the vehicle is driving at a high speed on a restricted section of road, such as a straight line connected with a small radius circle curve, driving will be extremely uncomfortable. When the car enters the curve section, the super high starts and the vehicle tilts inward, but the passenger must maintain the body because it is not subjected to centrifugal force at this time. When the car reaches the curve section, centrifugal force suddenly occurs, forcing passengers to make further posture adjustments. When the car leaves the curve, the above process is just the opposite. After inserting the relaxation curve, the radius gradually transitions from infinity to a certain fixed value on the circle curve, the centrifugal force gradually increases, and ultra-high levels are carefully set along the relaxation curve, and the centrifugal force is gradually increased, thereby avoiding driving bumps.The easement curve has been used on railways for many years, but it has recently been applied on highways. This is understandable. The train must follow a precise orbit, and the uncomfortable feeling mentioned above can only be eliminated after the ease curve is used. However, the driver of a car can change the lateral position on the road at will, and he can provide a relaxation curve for himself by making a roundabout curve. But doing this in one lane (sometimes in other lanes) is very dangerous. A well-designed relaxation curve makes the above roundaboutnessunnecessary. Multi-cluster safety is a measure, and roads are widely used as transition curves.For a circular curve with the same radius, adding an easing curve at the end will change the relative positions of the curve and the straight line. Therefore, whether or not to use an easing curve should be determined before final alignment survey. The starting point of the general curve is labeled PC or BC and the end point is labeled PT or EC. For curves with transition curves, the usual marker configurations are: TC, SC, CS, and ST.For two-way roads, the road width should be increased at sharp bends. This is mainly based on the following factors: 1. The driver is afraid to get out of the edge of the road. 2. Due to the difference in the driving trajectory of the front and rear wheels of the vehicle, the effective lateral width of the vehicle increases; 3. The width of the front of the vehicle that is inclined relative to the centerline of the road. For roads that are 24 feet wide, the added width is negligible. Only if the design speed is 30 mil / h and the curvature is up to 2 ft. However, for narrow roads, widening is very important even on smooth curve sections. The recommended widening values and widened designs are shown in ". Highway linear design."B. Longitudinal slope lineThe vertical alignment of the highway and its impact on the safety andeconomy of vehicle operation constitute one of the most important elements in highway design. V ertical lines consist of straight lines and vertical parabolas or circular lines called vertical slope lines. When a grade line rises gradually from a horizontal line, it is called an uphill, and vice versa, it is called a downhill slope. In the analysis of slope and slope control, designers usually have to study the effect of changes in slope on the midline profile. In determining the slope, the ideal situation is the balance of excavation and filling, and there is no large amount of borrowers and abandoned parties. All the earth moving is carried down as far as possible and the distance is not long. The slope should change with the terrain and be consistent with the direction of ascent and descent of the existing drainage system. In the mountains, the slopes should be balanced to minimize the total cost. In the plain or grassland areas, the slope is approximately parallel to the surface, but higher than the surface at a sufficient height to facilitate drainage of the surface. If necessary, winds can be used to remove surface snow. If the road is approaching or running along a river, the current height of the slope is determined by the expected flood level. In any case, the gentle slope should be set at the excavation section compared to the short vertical section connecting the short vertical curve due to the upslope downslope, and the section from the downslope upslope should be set at the fill. Road section. Such a good linear design can often avoid the formation of a mound or depressionopposite to the current landscape. Other considerations are much more important when determining the vertical slope line than when filling the balance. Study and make more detailed adjustments to advanced issues. In general, the slope of the design that is consistent with the existing conditions is better, which can avoid some unnecessary costs.In slope analysis and control, the impact of slope on motor vehicle operating costs is one of the most important considerations. As the slope increases, the fuel consumption will obviously increase and the speed will slow down. A more economical solution can balance the annual increase in the annual cost of reducing the slope and increasing the annual cost of running the vehicle without increasing the slope. The exact solution to this problem depends on the understanding of traffic flow and traffic type, which can only be known through traffic investigations.In different states, where the maximum longitudinal gradient is also very different, AASHTO recommends that the maximum longitudinal slope be selected based on the time and terrain. The current design has a maximum longitudinal gradient of 5% at a design speed of 70 mil / h. At a design speed of 30 mil / h, the maximum longitudinal slope is generally 7% - 12% depending on the topography.When using longer sustained climbs, the slope length cannot exceed the critical slope length when no slow-moving vehicle is provided. The critical slope length can vary from 1700 ft in 3% grade to 500 ft in 8%grade. The slope of the continuous long slope must be less than the maximum slope of any end surface of the highway. Usually the long continuous single slope is disconnected and the lower part is designed as a steep slope, while approaching the top of the slope allows the slope to decrease. At the same time, it is necessary to avoid obstruction of the view due to the inclination of the longitudinal section.The maximum longitudinal gradient of the highway is 9%. Only when the drainage of the road is a problem, if the water must be drained to the side ditch or the drainage ditch, the minimum gradient criterion is of importance. In this case, AASHTO recommends a minimum gradient of0.35%.C. sight distanceIn order to ensure the safety of driving, the road must be designed to have a sufficient distance in front of the driver's line of sight, so that they can avoid obstacles other than the obstacles, or safely overtake. The line-of-sight is the length of the road visible to the driver of the vehicle. Two meanings: "parking distance" or "non-passing sight distance" or "overtaking sight distance."No matter what happens, reasonable design requires the driver to see this danger outside a certain distance, and brake the car before hitting it. In addition, it is not safe to think that the vehicle can avoid danger by leaving the driving lane. Because this can cause the vehicle to lose controlor to collide with another car.The parking distance is composed of two parts: The first part is the distance that the driver takes before the driver finds an obstacle and brakes. In this detection and reaction phase, the vehicle travels at its initial speed; the second part is the driver’s Part of the pa rking distance depends on the speed of the vehicle and the driver's visual time and braking time. The second part of the parking distance depends on the speed, the brakes, the tires, the conditions of the road surface, and the line shape and slope of the road.Otherwise, the capacity of the highway will be reduced, and the accident will increase, because the irritable driver would risk a collision and overtake the vehicle if he cannot safely overtake the vehicle. The minimum distance in front of which the driver can safely be seen is called the overtaking distance.When making a decision on whether to pass or not, the driver must compare the visibility distance ahead and the distance required to complete the overtaking movement. The factors that influence him to make a decision are the degree of caution in driving and the acceleration performance of the vehicle. Due to the significant differences between humans, the overtaking behavior, which is mainly determined by human judgments and actions rather than the mechanical theorem, varies greatly from driver to driver. In order to establish the line-of-sight value forovertaking, engineers observed many drivers’ overtaking behavior. Between 1938 and 1941, a basic survey was established to establish a standard of over- sight distance. Assume that the operating conditions are as follows:1. It is driven at a uniform speed by the overtaking vehicle.2. Overtaking When entering the overtaking area, decelerate after being overtaken.3. When arriving at the overtaking area, the driver needs to observe the passing area for a short time and start overtaking.4. In the face of the opposite vehicle, the overtaking is completed in a delayed start-up and a hurried turn. In the overtaking process, overtaking accelerates in the overtaking lane and the average speed is 10 mil / h faster than being overtaken.5. When overtaking returns to its original lane, there must be a safe distance between it and the opposite vehicle on the other lane.The sum of the above five items is the over sight distance.中文译文公路线形设计作者：Y HassanA. 平面设计道路的线形反映在平面图上是由一系列的直线和与直线相连的圆曲线构成的。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
AT89C52 The AT89C52 is a low-power, high-performance CMOS 8-bit microcomputer with 8K bytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 and 80C52 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C52 is a powerful microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications. Features : * Compatible with MCS-51 * 8K Bytes of In-System Reprogrammable Flash Memory * Endurance: 1,000 Write/Erase Cycles * Fully Static Operation: 0 Hz to 24 MHz * Three-level Program Memory Lock * 256 x 8-bit Internal RAM * 32 Programmable I/O Lines * Three 16-bit Timer/Counters * Eight Interrupt Sources * Programmable Serial Channel * Low-power Idle and Power-down Modes
Description: The AT89C52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full-duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89C52 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt system to continue functioning.The Power-down mode saves the RAM contents but freezes the oscillator, disabling all other chip functions until the next hardware reset. Pin Description VCC:Supply voltage. GND:Ground. Port 0: Port 0 is an 8-bit open drain bi-directional I/O port. As an output port, each pin can sink eight TTL inputs. When 1s are written to port 0 pins, the pins can be used as highimpedance inputs.Port 0 can also be configured to be the multiplexed loworder address/data bus during accesses to external program and data memory. In this mode, P0 has internalpullups.Port 0 also receives the code bytes during Flash programming and outputs the code bytes during program verification. External pullups are required during program verification. Port 1: Port 1 is an 8-bit bi-directional I/O port with internal pullups.The Port 1 output buffers can sink/source four TTL inputs.When 1s are written to Port 1 pins, they are pulled high by the internal pullups and can be used as inputs. As inputs,Port 1 pins that are externally being pulled low will source current (IIL) because of the internal pullups.In addition, P1.0 and P1.1 can be configured to be the timer/counter 2 external count input (P1.0/T2) and the timer/counter 2 trigger input (P1.1/T2EX), respectively.Port 1 also receives the low-order address bytes during Flash programming and verification. Port 2: Port 2 is an 8-bit bi-directional I/O port with internal pullups.The Port 2 output buffers can sink/source four TTL inputs.When 1s are written to Port 2 pins, they are pulled high by the internal pullups and can be used as inputs. As inputs,Port 2 pins that are externally being pulled low will source current (IIL) because of the internal pullups.Port 2 emits the high-order address byte during fetches from external program memory and during accesses to external data memory that use 16-bit addresses (MOVX @ DPTR). In this application, Port 2 uses strong internal pullups when emitting 1s. During accesses to external data memory that use 8-bit addresses (MOVX @ RI), Port 2 emits the contents of the P2 Special Function Register.Port 2 also receives the high-order address bits and some control signals during Flash programming and verification. Port 3: Port 3 is an 8-bit bi-directional I/O port with internal pullups.The Port 3 output buffers can sink/source four TTL inputs.When 1s are written to Port 3 pins, they are pulled high by the internal pullups and can be used as inputs. As inputs, Port 3 pins that are externally being pulled low will source current (IIL) because of the pullups. Port 3 also serves the functions of various special features of the AT89C51, as shown in the following table. Port 3 also receives some control signals for Flash programming and verification. RST: Reset input. A high on this pin for two machine cycles while the oscillator is running resets the device. ALE/PROG: Address Latch Enable is an output pulse for latching the low byte of the address during accesses to external memory. This pin is also the program pulse input (PROG) during Flash programming. In normal operation, ALE is emitted at a constant rate of 1/6 the oscillator frequency and may be used for externaltiming or clocking purposes. Note, however, that one ALE pulse is skiped during each access to external data memory. If desired, ALE operation can be disabled by setting bit 0 of SFR location 8EH. With the bit set, ALE is active only during a MOVX or MOVC instruction. Otherwise, the pin is weakly pulled high. Setting the ALE-disable bit has no effect if the microcontroller is in external execution mode. PSEN: Program Store Enable is the read strobe to external program memory. When the AT89C52 is executing code from external program memory, PSEN is activated twice each machine cycle, except that two PSEN activations are skipped during each access to external data memory. EA/VPP External Access Enable. EA must be strapped to GND in order to enable the device to fetch code from external program memory locations starting at 0000H up to FFFFH.Note, however, that if lock bit 1 is programmed, EA will be internally latched on reset. EA should be strapped to VCC for internal program executions.This pin also receives the 12-volt programming enable voltage (VPP) during Flash programming when 12-voltprogramming is selected. XTAL1: Input to the inverting oscillator amplifier and input to the internal clock operating circuit. XTAL2: Output from the inverting oscillator amplifier. Special Function Registers: A map of the on-chip memory area called the Special Function Register (SFR) space is shown in Table 1.Note that not all of the addresses are occupied, and unoccupied addresses may not