加强国有企业内部控制之我见.doc

加强国有企业内部控制之我见

加强国有企业内部控制之我见(19000字) 摘 要：本文强调指出内部控制体系对于企业发展的重要意义，以国有企业的内部控制为写作对象，结合中海运集团、三鹿集团、国有航空企业、秦岭水泥等案例事件从COSO框架提出的内部控制五个方面即控制环境、风险评估、控制 ...

动、信息系统与沟通和监控出发，分析了我国国有企业内部控制现状问题，然后找到形成问题的原因，进而从问题入手，提出对应于问题的健全内部控制环境、加强风险管理、合理设置控制活动、完善信息沟通系统和强化监督机制五个大方面的加强我国国有企业内部控制的措施。
关键词：控制环境；风险管理；控制活动；信息沟通；监督

Strengthening State-owned Enterprise Internal Control
Abstract：This paper emphasizes the internal control system is an important significance to the development of the enterprise, the internal control to state-owned enterprises for writing object, combined with the case events from cnooc group proposed COSO internal control framework of five aspects, the controlling environment, risk assessment, control activities, information system and communication and monitoring, analyzes the existing problems in state-owned enterprise interior, and find the reason of the problem, and then formed from problems, take the corresponding to reason sound internal control environment, enhancing risk management, setting up reasonable control activities, improve information communication system and strengthen supervision mechanism proposed to strengthen the five big state-owned enterprise internal control measures.
Keywords: control environment；risk management；control activities；information communication；supervision
6%），犬传染性肝炎病最小（9.8%）；经治疗犬瘟热病和犬细小病毒病的死亡率仍保持在高的水平，分别为89.28%和30.69%，其中≥2月龄的病犬死亡率均为100%；三种治疗方案中，相对而言以单抗和三联血清联合使用的效果最好。因此，加强犬的疫苗接种仍是防治犬传染病重要手段。
关键词：犬；传染病；细小病毒；犬瘟热；传染性肝炎；

Survey and analysis of pet common infectious diseases
Abstract: The clinical cases of infectious diseases in dogs from Xiangtan City Pet Hospital were investigated for the composition of various infectious diseases, vaccination situation, mortality,and treatment effects in the study. The results showed that 143 cases of infectious diseases in dogs were not vaccinated, which took the highest proportion of parvovirus infection (70.6%), followed by canine distemper disease (19.6%) and canine infectious hepatitis (9.8%). The mortality rates of canine distemper and canine parvovirus disease after clinical treatments remained at high levels, respectively in 89.3% and 30.7%, and were 100% for ≥ 2-month-old dogs. Treatments in combination of monoclonal antibody with the serum antibody were the best among three treatment programs relatively. Therefore, strengthening for the dog's vaccination is still an important means of prevention and treatment of infectious diseases in dogs.
Keywords: dogs；Infectious diseases；parvovirus；Canine Distemper；Contagious hepatitis； 所有符合条件的上市公司为研究对象,利用应收账款质量的有关评价指标, 分析了湖南上市公司2008年至2010年三年间应收账款质量的变化趋势和现状，并且分析产生这些现状的原因，并提出改善湖南上市公司应收账款质量的对策。
关键词：湖南上市公司；应收账款质量；应收账款；

Study On The Quality Of Accounts Receivable In Listed Companies
Abstract：Accounts receivable is a company selling products or services, or the receipt of services should be purchased and collected money. Quality is an enterprise accounts receivable accounts receivable can be converted into the ability of monetary assets. The quality of accounts receivable and the quality of corporate earnings, business performance, business growth and others have great relevance. Affect the quality of accounts receivable is the main business profit performance and the quality an important factor. This article Hunan all eligible listed companies for the study, use of accounts receivable related to the quality of evaluation, analysis of Listed Companies in 2008-2010 three-year trends in the quality of accounts receivable and the status quo, and Analysis of the status quo because they have to make to strengthening of listed companies in the quality of accounts receivable.

Key words：Listed companies in hunan; The quality of accounts receivable; Accounts receivable
型的优缺点进行了分析，并通过该分析确定了单元串联多电平高压变频器为本设计的可行方案。阐述了单元串联多电平移相式PWM电压源型变频器原理，通过对原理的阐述，进一步透彻的掌握单元串联多电平高压变频器的内部特性。
⒉基于MATLAB/Simulink对6KV高压变频器进行建模与仿真研究，完成了对脉冲信号、单元电路、一相、三相和变频器系统的建模工作，并通过仿真，证明了单元串联多电平高压变频器在消除谐波问题上具有很大的优势。由仿真电流波形可以看出，在没有专门的滤波电路的情况下，其电流波形的正弦度已非常高，变频器的线电压共有21个阶梯，其正弦度比相电压更好，变频器的线电压谐波含量非常低，其含量最高的为10次谐波，其幅值为基波的1.%。
关键词：单元串联，多电平，高压，MATLAB/Simulink

Simulation Research of Frequency Converter
Based on MATLAB/Simulink
Abstract
The technology of frequency conversion and velocity adjustment has already become an effective method of both saving energy and improving product quality．The low-voltage frequency converter technology is already mature，but the high-voltage converter has not got a universal topology structure at present．Among the numerous solutions，cell series multi-level high-voltage frequency converter technology，depending on its obvious advantages in input and output harmonic，efficiency，input power factors etc，has occupied a share in market，especially，it has good market prospect in fan and pump industries．
This report mainly introduces the simulation research of cell series multi-level 6KV HVF(high voltage frequency)．The concrete content consists of the following aspects：
⒈The development and trend of HVF technology，the requirements both in domestic and abroad market for HVF are reviewed．The advantages and disadvantages of different HVF types are analyzed in detail，and therefore，the scheme design is proposed based on this analysis．The basic principle of cell series multi-1evel PWM converter is described here．The description thoroughly illustrates the internal traits of cell series multi-level HVF．
⒉Based on MATLAB/Simulink，the modeling and simulation research of 6KV complete the modeling of the pulse signal，cell circuit，one-phase，three-phase and the frequency converter system．By simulation research，it is proved that the cell series multi-level HVF has got great superiority on eliminating harmonics．Shown by the simulation current waveform，without special filtrating circuit，the sine of its current waveform is already very high. The line voltage of the frequency changer owns 21 steps，and its sine value is better than phase-voltage，also the harmonic content of the frequency converter line voltage is very low，which the largest value is 10 harmonic waves，its amplitude value counts 1.% of a fundamental wave．
Key words：cell series, multi-level, high voltage , MATLAB/Simulink

毕业设计研究工作
高压变频器的开发是一项复杂的项目，其主要内容包括变频器的控制系统和变频器主电路的设计两大部分，它涉及到电机控制理论，多CPU运行，现场总线，大规模可编程逻辑电路，通信协议，电力电子技术等，是多学科、高技术的综合。从方案的生成到产品的调试直至产品的应用是一个较长的开发周期，需要大量的人力、物力。本次设计主要在于相关的高压变频器的仿真研究。完成的具体内容是：对整个高压变频器以及调速系统进行仿真研究，变频器模型的建立，包括控制脉冲模型、三相电源模型、功率单元模型、一相模型以及变频器的模型。然后对各个模型进行仿真和试验数据分析。

  会的主流趋势。但是新能源汽车的发展前景到底如何，仍然引起了巨大的争议。本文首先分析了新能源汽车市场的发展机遇，接着分析了新能源汽车市场的潜在经济效应，以及其市场供求状况，然后得出了新能源汽车市场前景广阔的结论。
关键词：低碳经济；支柱产业；汽车保有量；

Analysis of Market Developing Tendency of Chinese New Energy Vehicles
Abstract: In recent years, the development of new energy vehicles have gradually been widespread concern in the whole world, the new green energy advocates became the main trend of society today, but regarding to the future of the new energy vehicles aroused widely controversy. This paper firstly analysis the developing chance of new energy vehicles market, then analysis its potential market economic impact and basic condition of market supply and demand At last ,concluded that the new energy vehicles have brightly future of its development market.
Keyword: low-carbon economy; pillar industry; vehicle holdings;
计，共六层,建筑面积3600m 左右。设计分为两部分：第一部分是建筑部分，包括对建筑的平面设计、建筑立面设计、建筑剖面设计、建筑构造做法等。本设计采用了大空间结构，这样更能符合使用者的需求，充分体现建筑的功能。第二部分为结构设计，包括框架梁、板、柱的设计以及楼梯设计等。本设计的结构采用框架承重体系，墙体采用蒸压粉煤灰加气混凝土砌块，有利于减轻建筑物自重；其中对框架梁、柱、板的设计都采用了弹性理论方案。设计为抗震设计，因此设计过程中还进行了地震作用下弹性位移验算。设计后达到了强度、刚度和稳定性方面的要求。 关键词 框架 混凝土 抗震 刚度 span> br />
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任务书.DOC（word文件）
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答辩申请表（word文件）
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nbsp;3
2.1建筑设计说明 3
2.1.1建筑总平面设计 3
2.1.2建筑平面设计 3
2.1.3建筑立面设计 5
2.1.4建筑剖面设计 6
2.1.5建筑构造 7
2.2结构设计说明 8
2.2.1框架的承重方案 8
2.2.2梁、柱截面尺寸确定 8
2.2.3框架结构计算简图 8
2.2.4结构计算 8
第3章 结构计算书 9
3.1工程概况 9
3.2结构布置及计算简图 9
3.3重力荷载计算 12
3.3.1屋面及楼面永久荷载标准值 12
3.3.2屋面及楼面可变荷载标准值 12
3.3.3梁、柱、墙、窗、门重力荷载计算 12
3.4框架侧移刚度计算 17
3.5横向水平荷载作用下框架结构的内力和侧移计算 18
3.5.1横向水平地震作用下框架结构的内力和侧移计算 18
3.5.2横向风荷载作用下框架结构内力和侧移计算 23
3.6竖向荷载作用下框架结构的内力计算 27
3.6.1横向框架内力计算 27
3.6.2横向框架内力组合 35
3.7截面设计 49
3.7.1框架梁 49
3.7.2框架柱 51
3.8楼梯设计 54
3.8.1梯段板设计 55
3.8.2平台板设计 55
3.8.3平台梁设计 56
3.9屋（楼）面板设计 58
3.9.1板配筋设计 58
3.10基础设计 59
3.10.1地基承载力特征值 59
3.10.2确定 的基底尺寸 59
3.10.3设计 柱基础 61
结论 64
致谢 65
参考文献 66
附录1 67
附录2 71 color='#9a9a9a'> br />
建施07：背立面图.dwg（cad文件）
建施08：屋面排水.T（PKPM文件）
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结构图：
结施01：结构设计总说明.dwg（cad文件）
结施02：框架配筋图.T（PKPM文件）
结施03：标准层结构平面图.T（PKPM文件）
结施04：顶层结构平面图.T（PKPM文件）
结施05：基础平面布置图及配筋图.T（PKPM文件）
结施06：楼梯结构布置图及配筋图.T（PKPM文件）
结施07：梁配筋图.T（PKPM文件）
//////////////////////////////////////////////////////////////////////////// 的剖面图，以及若干详图。各图均按规范要求设计。
本工程结构设计时密切结合建筑设计，力求经济合理，在框架结构体系中适当布置钢筋混凝土剪力墙，作为抗侧力构件与框架协调工作，使结构具有良好的抗震性能。结构分析的重点在于框架和剪力墙的协同工作分析。考虑毕业设计的特殊要求，以手算为主、电算为辅。
结构设计包括以下七个部分：结构刚度计算；水平地震作用效应分析；竖向荷载作用下框架和剪力墙内力计算；荷载效应组合；截面设计与配筋计算；楼梯设计；梁板设计。
计算书的主要内容有：完成现浇楼板局部单元板的设计（包括手工进行荷载计算、内力分析及配筋计算，电脑绘出施工图）；根据建筑要求完成其它楼层结构布置，应用SATWE程序进行电算，并在结构布置施工图中，应用平法表示标出梁、板、柱和框架的编号、板厚及配筋；人工计算完成框架—剪力墙结构协同工作分析、结构侧移计算、剪力墙受力分析与截面设计、框架受力分析与截面设计（包括内力分析、水平荷载与竖向荷载的计算和组合、截面配筋并绘制施工图）；应用设计软件完成分析、设计，对比分析电算和手算的主要成果。
毕业设计的成果符合现行规范的要求，因而是合理可行的。

关键词： 高层建筑；钢筋混凝土结构；框架—剪力墙结构；综合办公楼；建筑与结构设计

Abstract: This graduation project follows and builds, and then structure, more basic design process first, according to the request of task book and guide book, finish the building design and structural design of reinforced concrete frame - shearwall structure’s Guilin chenghua comprehensive building.
The construction drawing of the building including general layout and proving, first storey, standard storey and roof plane figure, straight elevation and reciting elevation, the section systems of the stair and lift well, and several detail drawings. Every drawing is designed according to the requirement of standardizing and approved by teacher.
Combine the architectural design closely at the time of the structural design in this project, strive to make economy and rational, assign the reinforced concrete shearwall in the structural system of the frame appropriatly, as resist side force component work together with frame coordinate, and make the structure have good antidetonation performance. Focal point that structure analyze lie in frame and shearwall work to analyze in coordination. Consider special requirement of graduation project, rely mainly on the fact that hands can be regarded as, electricity charge for complementing.
The structural design is composed of seven parts: Structural rigidity is calculated; Function effect analysis of the horizontal earthquake; The verticality loads function and makes the frame and cuts the wall internal force of strength calculated; Load the effect association; The section is design and worthy of the muscle to calculate; The stair is designed; The roof beam board is designed .
The main content of calculating book is as follows, finish one cast-in-place floor some unit design of board (include handwork to carry out load calculation, force analysis and match tendon to calculate, computer paints construction picture); Require to finish the layout of the structure of other floors according to building, employ SATWE procedure to calculate the electricity, and among layout of the structure construction drawing, employ flat law say, stamp roof beam, board, column, serial number of frame, board thick buying muscling; Calculate the frame of finishing artificially - Cut the wall structure of strength work and analyze in coordination, the structural side is moved and