国内外研究现状终稿
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上海第二工业大学本科毕业设计(论文)学生手册题目:学生姓名:学号:学院名称:经济管理学院专业班级:指导教师:开始日期:2015 年 12 月 16 日完成日期: 2016 年 5 月 15 日目录一、任务书 (1)二、开题报告 (2)三、中期检查表 (5)四、论文审阅表 (6)五、论文评阅表 (7)六、指导记录表 (8)七、答辩记录表 (10)八、外文翻译稿和原稿 (12)毕业设计(论文)任务书毕业设计(论文)开题报告毕业设计(论文)中期检查表毕业设计(论文)审阅表毕业设计(论文)答辩记录表(接上页)外文翻译稿和原稿Research on Green Logistics Development at Homeand AbroadAbstract: Green logistics was proposed in the early 1990s, since then, the governments, the academia and the business community around the world has paid a lot of attention to it. Green logistics is based on the sustainable development, resource conservation and environment friendly. It can help us to deal with the relationship effectively between the logistics development, environmental protection, and make the economic interests, social interests and environmental interests unity. At present, the development of the green logistics in China is still relatively backward. In order to accelerate the development of the green logistics in China and improve its quality, this paper collected and collated some successful practices and experience of other countries by the methods of the literature analysis and summarizes. Combined with the national conditions of china, this paper proposed some suitable measures and recommendations, and they will have the actual significance to improve the logistics level.Keywords: green logistics; sustainable development; ecological economy; green production; green consumption1. IntroductionWith the rapid development of social economy and the greatly enhance of the human material civilization, the resources on the earth have been dwindling, and the living environment of human beings is facing with more and more threats. In this context, a wave of "green wave" is raised in the global in 1990s, and green movement are infiltrating to all areas. Modern logistics industry is the backbone of national economies, and its comprehensive and relevance are strong. With the emergence of new economic, such as information economy and network economy, the logistics has been given new knowledge, new technology and new management thought, and logistics industry has developed to the direction of the specialization and scale. But with the increase of the amount of logistics, changes of logistics management and large scale of the logistics facilities and tools, the influence of the logistics system on the ecological environment has become more and more serious. To solve this problem, the concept of "green logistics" was born in some developed countries. At present, green logistics is still a full new concept, and it is lack of mature theoretical system, but the social and economic value it appears is enormous.2. The concept of green logisticsGreen logistics is a new topic proposed in the 90s of the 20th century. As well as the concept of the logistics, there hasn't a mature definition for the green logistics so far. The scholars at home and aboard have different descriptions on the concept of the green logistics. H.J.Wu and S.Dunn thought that the green logistics was a logistics system responsibility to our environment, and it included not only the green forward logistics process, from the acquisition of the raw material, production, packaging,transportation, warehousing and finally the arrival to the end user, but also the reverse logistics of the waste recovery and disposal. The Reverse Logistics Executive Council rose in a paper: the green logistics attempts to measure and minimize the ecological impact of logistic activities. “Green logistics”, written by Bjorn N.Peters en and Palle Petersen, published in Danmark, define the green logistics as the eco-management of the forward logistics and the reverse logistics. “Logistic term”,published in the year of 2001 in china, definite that green logistics is to reduce the harm to environment in the process of logistics, at the same time, to purify the logistic environment and take fully advantage of the logistics resource. ChunYu Xia, JianSheng Li ,working in the Northeast University ,thought in their published works “Green logistics”:Green logistics is aiming at reducing the environmental pollution, reducing resource consumption, using the advanced logistics technology to plan and implement the transport, storage, packing, loading and unloading, circulation processing and other logistics activities, and it is a green economy management process which is connecting green supply body and demand body, and overcoming effective and rapid green goods and the service flow which is hindered by space and time. Changqiong Wang, working in Wuhan University of Science and Technology, defined in his “Green logistics”:Green logistics is a process which is aiming at reducing the environmental pollution and reducing resource consumption, through advanced logistics technology and facing to the environmental management ideas, to plan, control, manage and implement the logistics system.3. Green logistics development analysis in abroadThis paper summarizes and analyzes the green logistics development of Germany, the United States and Japan. Green logistics is relatively well-developed in the three countries. This study can suggest a direction for the green logistics development in china.A. GermanyThe logistics capability in Germany is ranked first in the world, and it represents the development direction of the global logistics industry. At the same time, Germany's green logistics also has a leading position in the world.●Establish the transport network of low-carbon emissions. According to the research, throughout the logistics links, the road transport is the largest part of carbon emissions. In order to reduce carbon emissions, they transport mainly by train or ship in German. They already have a perfect network for the transport by rail and ship, and already have more than 50 logistics villages.●Collaborative transport mode of the green intermodal. Intermodal is the means that operators take at least two different modes of transport to transport. Green intermodal is the means that operating vehicles must meet the environmental requirements and the driver must know the energy saving technologies. Dates show that the green intermodal transport mode is slower one day than the road transport, but carbon emissions reduce by 70%. Moreover, using energy saving equipment, government will give some corresponding subsidies. Energy saving driving training to the drivers can save fuel 10-20%. In addition, Germany's medium and small enterprises oftenhave their own advisory team, and they can provide the most scientific design for establishing the green intermodal mode of their own.●Use the leasing widely. The logistics enterprises in Germany use commonly the leasing of transportation. According to the latest survey, transport trucks on the road in Germany almost 80% are leased. The government usually gives some financial support about the highway charges, and the government will have the corresponding subsidies to the leasing vehicles.●The perfect green logistics training model. Germany pays more attention to the green awareness propaganda to the customer and trains the staff. And the training is mandatory, that is, all the company employees must participate. According to the survey, its advanced modular logistics training model is composed of more than 300 modules, involving more than 5,000 types of logistics.● Advanced green logistics technologies. Germany pays more attention to the R&D of green logistics technology; meanwhile, Germany is the world's largest exporter of green logistics technology. In 2006, German exports of green technology have close to 100 million Euros, and increases more than 20% than 2005. Germany pays more attention to the application of scientific and technological means and the use of computer information, for example, from the GPS to the team's information management and to the ultimately track positioning systems. The help of the computer information management to logistics companies is obvious. In addition, the German commonly used removable container, so that idle rate of the trucks can be reduced by 30% to 40%, which greatly improve the use efficiency of trucks.B. The United StatesThe United States is one of the first countries developing the logistics industry in the world. According to the statistics, there are five U.S company in the top ten logistics companies in the world. In the economic and social environment of the logistics highly developed, the U.S. government constantly adjusts the macroeconomic policy to ensure green logistics development promote the development of socioeconomic development. The United States in its 2025 "National transportation science and technology development strategy" set the overall objective that transportation industrial structure or transportation science and technology progress is as follows: "to establish safe, efficient, adequate and reliable transport system, its scope is international, form is comprehensive, characterize is intelligence, and the nature is environment-friendly".●Green supply chain management. Implementing green management to the supply chain is a kind of environmental protection and ecological management from the supply of raw materials, purchasing, production, use, consumption, to waste recycling, reuse of the whole process. The core of management is to make the whole supply chain harmonization in environmental management, and make the environment and green. Green supply chain management has been begun in the United States in 1999.●Pay more attention to reverse logistics. When developing environmental policy objectives, the environmental analysis experts in U.S usually to "minimize the impact on the environment" as the target. They advocate usually the policy and strategy, such as minimizing resource consumption, wasting reduction and improving environmentalquality, and so on. In the US, many companies have established reverse logistics management systems, aiming at product returns, repair and waste recovery. They take the initiative to extent their responsibilities in order to enhance their competitiveness. For example, the IBM Company set up a global recycling service center in the late 90s, responsible for the worldwide recall of all products business. IBM donates the recalled products to charity, making them service to society, conserving resource, or uses them in the production after being processed to reduce production costs. According to statistics, there are 120,000 auto recyclers in U.S. and their annual turnover is several billion dollars, it is a profitable industry.● Use green packaging. In 1960s, the United States began to pay more attention to packaging and environmental protection. The several reasons ensure the green packaging in the United States implement smoothly.The perfect legal protection: The U.S. government mandatory recycles packaging waste and promotes the use of renewable resources by formulating laws and regulations, environmental advocacy and the R&D of the green new materials and so on. By 1988, 21 states in the United States had enacted laws and regulations to restriction and prohibition the use of certain plastic packaging products.The implementation of environmental labeling system: By 1988, there had been 36 states in the United States implementing the environment through joint identification system by joint legislative. The main approach was: to promote the use of "green flag" or" renewable signs" in some plastic containers or packaging, to tell consumers which can be regenerated to use. These practices make the legal regulation of the United States about green packaging achieve remarkable 1 result. A market survey of the United States display: due to the impact of green packaging, people's consumption habits have gradually changed. More and more consumers want to use recycled paper board packaging and hope the packing can be marked with the symbol of recycled 100%.Packaging industry improves continuously the green program: At present, the packaging industry in the US mainly uses two kinds of green programs: First, a 15% annual reduction in consumption of raw materials; Second, the utilization of packaging products for recycling is at least 20%. Many states have passed legislation to determine the recovery of packaging waste fixed, and formulated any company can apply for tax exemption as long as certain provisions of the recycling packaging waste utilization. Through these regulations, the United States in the recycling containers has made remarkable achievements, the amount of carton packaging recycling up to 4 million tons each year, and they can be reused after being treated.R&D of new environmentally friendly packaging materials: Some companies and research institutions in the U.S. develop and introduce continuously new environmentally friendly packaging materials. For example, scientists in the US have invented a low-cost, environmentally friendly fast-food packaging materials, and this material is made of wheat straw fiber and wheat starch, this kind box can be completely degraded, and has good insulation properties; Hewlett-Packard has developed 12 type PC in the beginning of this century, each of which has only 3 screws, and it is convenient and easy to disassemble the computer to upgrade themaintenance update.● Use advanced green technology. General corporate in the US use many advanced technologies during the logistics, such as transportation, distribution, packaging and so on. These advanced technologies include electronic data interchange (EDI), time production (JIT), distribution planning, green packaging, and so on. They can provide strong technical support and protection for the green logistics activities.4.The enlightenment of green logistics abroad to ChinaA. Establish the Concept of Green LogisticsEstablishment and development of Green Logistics is the effective convergence of the green production and green consumption. The whole society must establish the concept of green logistics. Firstly, the government must take all measures to vigorously promote and advocate the green logistics,so that people insight into the concept of green logistics, green logistics to create a favorable environment; Secondly, enterprises should organize staff to join in training in time, change the traditional concept of employees, and establish a full new logistics concept, encourage their employees to green procurement, green production, green marketing, green logistics, green finance, etc; Finally, the consumer should strengthen constantly their awareness of green consumption, and use this awareness to stimulate enterprises’ green action.B. Accelerate Infrastructure ConstructionCompared to the countries with developed logistics, there are many deficiencies of the current logistics level in china in the basic platform construction,such as transport, storage facilities, upgrading is not timely, distribution processing, logistics and information services, inventory management, logistics, cost control and other logistics value-added services equipment a lot lacking. We can start from the following aspects:●We should carry out the rational planning and overall design to the existing logistics infrastructure to improve the efficiency and make their comprehensive performance play.● Rebuild logistics infrastructure and make them macro-coordination and functional integration strengthen.●Expand the investment scale of the transport infrastructure, and increase the construction intensity of road, rail, water, air, pipelines and urban facilities distribution.●Strengthen the interface of various transport modes, accelerate the improvement of integrated transport network, and develop greatly multimodal transport.C. Develop Multimodal GreatlyIt is difficult for a single transport mode to efficiently complete the transportation task perfectly. Road, rail, water, air and other modes of transport have their own time and space characteristics. Therefore, enterprises should combine with the characteristics of a variety of transport modes, select the best combined transport program according to the principle of reducing pollution, improving the efficiency and effectiveness, and build a logistics and transport networks of energy-saving, environmental protection, efficient.D. Establish Green Logistics Recycling Network SystemConstructing advanced and comprehensive recycling green logistics network system of renewable resources is making information technology marry to recycling logistics industry. The aim is improving resource utilization and constructing a saving society. The measure is good to transform economic growth pattern, achieve sustainable development. Establishing green logistics recycling system changes the one-way flow characteristics of traditional logistics, and it is the key ring making green logistics and circular economy as closed-loop system.E. Green Logistics Mechanism InnovationThe development practice of the green logistics in Western developed countries has proved: Green Logistics can form gradually the environmental industry by the market mechanism. Therefore, in order to ensure the smooth development of green logistics, we need optimize purposefully all relevant factors combination of green logistics, and offer innovative activities in the form of operating mechanisms to form and enhance the power of the green logistics system running evolution (Figure 3).F. Industry-university-research Cooperation, Develop High TechnologyThe development of the green logistics can not without innovation and use of the high technology. The economic and environmental goal pursuit green logistics pursuits will be difficult to achieve without the input of the advanced technology. If the logistics enterprises blindly emphasize the production capacity, but neglect the innovation capacity,it could make the logistics industry be in the low-end ofthe high technology industry's and value chain for a long time, and their core technologies and legitimate interests could always be controlled by others. Therefore, the government, enterprises, research institutions and institutions of higher collage must be closely coordinated, accelerate the establishment technological innovation system of enterprises-mainstay, market-oriented and industry-university-research cooperation, and guide and support the innovative elements gather into enterprises, promote scientific and technological achievements to convert to practical productive forces, and promote the innovation and development of green logistics in china. High-tech innovation and development is inseparable from the support of all levels of government, our government at all levels should increase high-intensity R & D investment to ensure that enterprises, research institutions and universities have sufficient R & D funding. Logistics technology development through high-density, high value-added logistics services, protection of the environment and the low carbon economy achieving the goal; by developing high-tech, foster a new round of technological innovation, efforts to address the transport of the noise, pollution, gas emission, traffic jams and waste production and improper handling of life and many other issues, and create a new situation of innovation and development of green logistics.G. Professional Green Logistics Personnel TrainingPromoting the development of green logistics needs solid theoretical guidance, perfect hardware facilities and scientific support of logistics technology, and these are inseparable from the professional training. Therefore, training and bringing up a large number of logistics personnel familiar to green theory and practice is urgent. Weshould vigorously develop high quality and complex logistics personnel by universities, businesses and community resources. They should possess the following qualities:● They should have a strong management desire and challenge spirit, and have the basic qualities of hard working, honest integrity and effective communication.●They should have a broad base of knowledge, and master the knowledge of international trade and customs clearance, storage and transportation, financial cost management, security management and legal.●They should understand not only the logistics technology, but also the logistics economy, not only familiar with the logistics management technology, but also master the supply chain process, familiar to software programs, ecommerce technology and information technology systems.●They should fully grasp the transport, storage, packaging, handling, distribution processing and information services and other basic skills.国内外绿色物流发展研究摘要:绿色物流在1990年代早期被提出,从那时起,全世界的政府、学术界和商界对绿色物流有很多的关注。
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乒乓球运动的现状与发展对策研究研究现状:乒乓球是我国的“国球”,但是乒乓球运动普及的并不是很好。
目前,我国乒乓球运动发展迅速,但是在一些地方其发展还不是很好。
这些地方有着共同的特点:乒乓球运动参与者少、乒乓球器材短缺、乒乓球运动不规范、在其运动上显现出很多的弱点及错误。
根据我国的国情,我们认为社区型体育健身应成为我国体育运动的主体,体育健身中乒乓球运动有时我们不可或缺的一个运动项目。
后奥运时代已经来临,随着人们健康意识的不断增强和“花钱买健康”理念的建立,高唐县的乒乓球运动也在迅速发展。
研究意义研究意义研究意义研究意义:虽然国内外基于乒乓球运动展开了多层次性研究,并取得了诸多成果,但是学者或是站在全国的角度,或是重点考察大城市的乒乓球运动的开展,很少关注小城市乒乓球运动开展状况,因此有必要对中小城市的乒乓球运动的开展状况做深入的了解,既可以为当地体育主管部门的工作提供一定的参考依据,又可以丰富我国乒乓球研究的内容。
通过对以往研究文献的梳理,借鉴前人的研究成果,明鉴后继研究的方向,对高唐县乒乓球运动参加居民的年龄、性别、动机、运动场所、消费及运动损伤等方面发现存在的问题,找出相应的对策和建议,为主管部门制定政策和制度,提供一定的理论和实践的依据。
重点和难点:问卷的发放、回收及以后的数理统计和分析研究方法:文献资料法、问卷调查法、数理统计法、访谈法研究步骤:1、查阅文献资料2、选题、开题3、设计调查问卷4、发放和回收调查问卷5、进行访谈6、对问卷进行数理统计7、对统计结果进行分析8、得出结论与建议预期结果:1、参加乒乓球运动的群众基础良好2、参加乒乓球运动居民的性别比例不均衡、年龄层次差异大3、参加乒乓球运动的居民动机不同4、比较较大城市的发展,高唐县乒乓球运动还有较大发展空间5、居民对乒乓球运动的看法不同论文主要内容(提纲): 1.前言2.研究对象与研究方法3研究结果与分析:3.1 高唐县乒乓球运动普及程度3.2 参加乒乓球运动的居民的特征分析 3.3 居民参加乒乓球运动的行为特征分析3.4 居民对乒乓球运动的看法3.5与济南、青岛较大城市的比较 4.结论与建议进度安排:1、2010年11下旬至12月收集文献资料,完成选题开题报告。
住院患者身体约束使用指征的研究进展摘要:身体约束被视为控制患者躁动及预防、减少其干扰治疗和维持其安全的临床常用保护性措施。
然而身体约束会对患者的生理、心理和社会等方面带来很多负面影响,因此越来越多的人关注并重新审视身体约束使用的正确性、合理性,为了降低身体约束的使用率,减少其造成的不良后果,我们应首先明确身体约束的使用指征。
本文就身体约束的使用现状及使用指征等方面进行了综述。
关键词:身体约束;使用指征;住院患者身体约束是临床上常用的保护性医疗措施之一。
目前,身体约束在国内外应用的较为广泛,尤其是在重症监护室,医务人员常常用身体约束来维护患者安全及预防意外事件的发生。
然而身体约束的使用会给患者带来生理、心理以及社会方面的负性结果,不恰当的使用身体约束甚至会造成被约束者的死亡[1,2]。
为此,一些国家已经制定了身体约束的使用指南。
然而国内缺乏对患者身体约束统一的使用标准,使身体约束的使用率居高不下,也给患者造成了相应的不良后果。
为了制定适合我国的身体约束使用指征,本文进行了如下综述。
1.身体约束使用现状1.1身体约束的概念2002年美国医疗机构评鉴联合委员会(JointCommis sionon Accred itati on of Health careOrgani zatio n, JCAHO)在制定约束规范时将其定义为应用任何物理的方法来限制患者移动、活动躯体和正常运用身体的自由[3]。
目前医疗领域多引用美国医疗财政管理局(Health Care Financ ing Admini strat ion, HCFA)对于身体约束的定义:使用任何物理或机械性设备、材料或工具附加在或临近于患者的身体,患者不能轻易将其移除,限制患者的自由活动或使患者不能正常接近自己的身体[4]。
开题报告范文一、题目《关于具体课题名称的研究》二、选题背景随着社会的发展和科技的进步,具体领域的问题日益受到关注。
在相关行业或社会现象的背景下,具体课题名称的研究具有重要的现实意义和理论价值。
简要阐述该课题在国内外的研究现状,包括已有的研究成果、研究方法和存在的不足等。
三、研究目的和意义(一)研究目的本研究旨在深入探讨具体课题名称,通过具体研究方法,揭示研究对象的具体特征或规律,为相关领域或实际应用提供理论支持和实践指导。
(二)研究意义1、理论意义本研究有助于丰富和拓展相关学科的理论体系,为进一步理解研究对象的本质和内在机制提供新的视角和方法。
2、实践意义通过对具体课题名称的研究,能够为相关行业或实际问题提供有效的解决方案和决策依据,促进相关领域的发展和进步。
四、研究内容1、具体内容 1对相关概念或现象1进行深入分析,探讨其内涵、特征和影响因素。
2、具体内容 2研究相关对象 2的具体方面,通过研究方法 2收集和分析数据,揭示其规律和趋势。
3、具体内容 3基于前两个方面的研究,构建理论模型或实践框架,并进行验证和优化。
五、研究方法1、文献研究法广泛查阅国内外相关文献,了解该领域的研究现状和前沿动态,为课题研究提供理论基础和参考依据。
2、实证研究法通过问卷调查、实地访谈、案例分析等方法,收集一手数据,对研究假设进行验证和分析。
3、数据分析法运用统计学方法和相关软件,对收集到的数据进行处理和分析,得出研究结论。
4、比较研究法对不同地区、不同组织或不同时间段的研究对象进行比较,分析其差异和共性,为研究提供更全面的视角。
六、研究进度安排1、时间区间 1完成文献查阅和资料收集工作,确定研究思路和方法,撰写开题报告。
2、时间区间 2设计调查问卷和访谈提纲,开展实地调研和数据收集工作。
3、时间区间 3对收集到的数据进行整理和分析,撰写论文初稿。
4、时间区间 4根据导师意见和专家建议,对论文进行修改和完善,形成终稿。
附件:中国经济改革促进与能力加强技术援助项目(TCC6)“中国城市社区居家适老化改造标准研究”子项目“国内外城市社区居家适老化改造典型案例集”研究工作任务大纲经财政部批准,住房和城乡建设部标准定额司正在执行世界银行贷款“中国经济改革促进与能力加强项目”中的一个子项目。
该子项目的目标是在当前大力开展中国城市老旧小区改造的背景下,以落实《国务院办公厅关于推进养老服务发展的意见》为契机,提出中国城市社区居家适老化改造工作的技术标准、实施指南和典型案例集,以指导中国各地城市老旧小区开展社区居家适老化改造工作。
为此,住房和城乡建设部标准定额司希望聘请一家咨询机构,承担该子项目下“国内外城市社区居家适老化改造典型案例集”研究任务。
一、背景1.关于“中国城市社区居家适老化改造标准研究”子项目党中央、国务院高度重视社区居家养老工作。
2019年31月,国务院办公厅印发《国务院办公厅关于推进养老服务发展的意见》(以下简称《意见》)明确提出实施老年人居家适老化改造工程。
2019年6月,国务院总理李克强主持召开国务院常务会议,部署推进城镇老旧小区改造,顺应群众期盼改善居住条件。
为贯彻落实国务院各项工作部署,住房和城乡建设部积极推动老旧小区适老化改造工作,不断完善养老服务设施工程建设标准。
将适老化改造作为城市老旧小区改造的重要内容,对城乡老旧社区、老旧楼房以及生活服务、医疗卫生和文化体育设施进行适老性改造。
因此,在现阶段研究提出中国城市社区居家适老化改造工作的技术标准、实施指南和典型案例集,能够指导全国各地老旧小区开展社区居家适老化改造的设计、施工和验收等工作,有效地促进社区居家适老化改造的政策、标准贯彻落实,进一步满足老年人多样化、多层次的养老服务需求。
2.关于本任务实施老年人居家适老化改造是《国务院办公厅关于推进养老服务发展的意见》部署的任务,是提升居家养老服务质量、促进养老服务消费的重要内容,需要我们为各地开展社区居家适老化改造工作提供经验借鉴,为解决各地在制定改造政策、设计方案、施工措施、产品应用、工程管理等方面面临的具体困难和问题提供实施路径。
毕业设计指导教师总结今年的毕业设计要求较以前年度有很大的变动,要求每个人提交作品,初接到任务压力很大,根据安排我拟指导____名学生的毕业设计,最后有____名学生放弃答辩,最后通过____人。
第一:根据学校工作部署,制定毕业设计论文选题。
选择合适的毕业设计选题,是落实该项工作最首要也是最关键性的环节。
根据学生的实际情况和对专业方向的考虑,制定了____个方向性的选题。
我根据学生平时对专业知识掌握程度的实际情况最终确定适合他们个体的毕业设计论文选题。
这部分内容主要是充分说明你的选题理由(比如之前你在选题领域所做的相关研究和学习);你所选题目前国内外的研究现状比较,今后的发展趋势会如何,你做的研究会对此产生什么样的影响或者会有一些什么样的理论技术创新。
第三:三稿撰写。
指导学生根据选题搜索和阅读有关的参考文献,根据开题报告拟定的专题提纲,进行初稿的撰写,并就初稿撰写中的问题进行指导性修正,形成修改稿,修改稿再进行深化,要求图文并茂,按照学校要求各市进行排版,最后经审核形成终稿。
第四:制作答辩PPT。
根据修改后的定稿制作答辩PPT,注意主题宣明、纲要问题设计合理,PPT制作要专业。
第五:毕业实践工作紧抓不放。
通过这次毕业设计的指导工作的践行,对我今后的教学工作有很大的促进作用。
在以后年度的该项工作中,希望能够把这次积累的经验运用得很好,取得更好的成绩。
毕业设计指导教师总结(二)一、实行毕业设计的必要性和可能性1、毕业设计强化了中等职业技术教育的目的。
于培养技能操作型工人,而应该培养更多具有创造力的技术型工人。
毕业设计作为一种创新教育,能够教给学生一种方法、一种全新的思维模式,可以激发学生的创新意识和潜能。
毕业设计的内容可以是多门学科的综合,学科与技能的综合,技能与生产的综合,将多种内容渗透到一个课题中去,有利于学生形成一个更加全面、完整的认知结构,形成鼓励创新、倡导创新的良好氛围。
2、毕业设计____了理论联系实际的原则。
毕业设计(论文)开题报告――智能移动机器人系统设计一.设计目的及意义随着计算机、网络、机械电子、信息、自动化以及人工智能等技术的飞速发展,移动机器人的研究进入了一个崭新的阶段。
同时,太空资源、海洋资源的开发与利用为移动机器人的发展提供了广阔的空间。
目前,智能移动机器人,无人自主车等领域的研究进入了应用的阶段,随着研究的深入,对移动机器人的自主导航能力,动态避障策略,壁障时间等方面提出了更高的要求。
地面智能机器人路径规划,是行驶在复杂动态自然环境中的全自主机器人系统的重要环节,而地面智能机器人全地域全自主技术的研究,是当今国内外学术界面临的挑战性问题。
移动机器人是一类能够通过传感器感知环境和自身状态,实现在有障碍物的环境中面向目标自主运动,从而完成一定功能的机器人系统。
理想的自主移动机器人可以不需人的干预在各种环境中自主完成规定任务,具有较高的智能水平,但目前全自主的移动机器人还大多处于实验阶段,进入实用的多为自主移动机器人,通过人的干预在特定环境中执行各种任务,而遥控机器人则完全离不开人的干预。
智能移动机器人是一类能够通过传感器、感知环境和自身状态,实现在有障碍物的环境中面向目标自主运动,从而完成一定功能的机器人系统。
移动机器人技术研究综合了路径规划、导航定位、路径跟踪与运动控制等技术。
涉及包括距离探测、视频采集、温湿度以及声光等多种外部传感器,作为移动机器人的输入信息。
移动机器人的运动控制主要是完成移动机器人的运动平台,提供一种移动机器人的控制方式。
性能良好的移动机器人运动控制系统是移动机器人运行的基础,能够服务于移动机器人研究的通用开发平台。
随着移动机器人技术的发展及其在工业军事等领域中的广泛应用,有关移动机器人的理论设计制造和应用的新的技术学科——机器人学,已经逐渐形成,并越来越引起人们广泛的关注。
机器人学是一门综合性很强的学科,它涉及现代控制技术、传感器技术、计算机系统和人工智能等多门学科.但是它又有自身的系统性和专业性。
【开题报告】毕业设计开题报告范文《毕业设计开题报告》一、选题背景在如今快节奏的生活中,人们对于便捷和高效的需求日益增长。
特别是在交通出行方面,如何优化公共交通系统,提高出行效率,减少拥堵,成为了一个备受关注的问题。
我所在的城市,每天早晚高峰时段,道路拥堵不堪,公交车上人满为患,地铁也常常处于饱和状态。
这不仅给人们的出行带来了极大的不便,也对城市的发展和环境造成了一定的影响。
因此,我决定以“城市公共交通出行优化方案研究”作为我的毕业设计选题,希望能够通过自己的研究,为改善城市公共交通状况贡献一份力量。
二、研究目的和意义(一)研究目的本研究旨在通过对城市公共交通系统的深入分析,找出当前存在的问题和不足,并提出相应的优化方案。
具体来说,包括以下几个方面:1、分析城市公共交通的客流量、线路布局、运营时间等因素,找出存在的供需不平衡问题。
2、研究不同出行方式(如公交、地铁、共享单车等)之间的衔接和换乘情况,提出优化建议,提高出行的便捷性。
3、运用数据分析和模型预测等方法,对未来城市公共交通的需求进行预测,为规划和决策提供依据。
4、探讨如何通过智能化技术(如大数据、物联网、人工智能等)提高公共交通的运营管理水平和服务质量。
(二)研究意义1、理论意义本研究有助于丰富城市公共交通领域的理论体系,为后续的研究提供参考和借鉴。
同时,通过对相关数据的分析和模型的构建,也可以为交通规划和管理的理论研究提供新的思路和方法。
2、实践意义研究成果可以为城市交通管理部门提供决策支持,帮助他们制定更加科学合理的公共交通发展规划和政策。
优化后的公共交通系统能够提高出行效率,减少交通拥堵,降低能源消耗和环境污染,提升城市的整体形象和竞争力。
此外,对于广大市民来说,便捷的公共交通出行能够节省时间和成本,提高生活质量。
三、国内外研究现状(一)国外研究现状国外在城市公共交通领域的研究起步较早,已经取得了较为丰富的成果。
一些发达国家如日本、德国、美国等,在公共交通规划、运营管理、智能化技术应用等方面积累了丰富的经验。
全要素生产率(以下简称TFP)又称综合要素生产率,是经济增长研究领域的一个重要概念,它主要反映资本、劳动力等所有投入要素的综合产出效率。国外学者在TFP的基础理论和测量方法方面做了许多开创性的研究。TFP引入中国以后,国内学者主要是运用国外的理论和方法对中国经济做了一些实证研究。 一、国外的研究历史及现状 国外对TFP的研究历史可以追溯到第二次世界大战结束之后。当时,经济增长已经成为各国学术界研究的一个重要主题,而TFP的研究正是在此经济增长理论以及生产理论的框架下衍生并逐渐形成了一个重要的分支。经济增长研究是建立在某种总量生产函数的概念之上的。它起源于柯布道格拉斯生产函数,这一模型的最初目的是揭示市场经济的生产规律。荷兰经济学家Tinbergen首先把这一生产函数用于研究经济增长问题,他在生产函数模型中增加了一个用以表示生产效率的时间趋势。由于Tinbergen的研究最初是用德文发表的,因此,直到1955年才为英语国家的经济学家开始了解。由此为开端,国外的学者开始了对TFP的理论、方法、应用等各方面的研究。 关于TFP基础理论、方法论的研究。国外学者在TFP的基础理论和方法论方面做了许多开创性的研究,取得了很多重要成果,国内学者现在所用的分析理论和方法多数是在此基础上发展而来的。Sollow于1957年发表了一篇名为“技术变化和总量生产函数”的经典文章,文章把总产出看作是资本、劳动二个投入要素的函数,从总产出增长中扣除资本、劳动力带来的产出增长,所得到的“余值”作为技术进步对产出的贡献。后人将此种计算生产率的方法称之为索洛余值法。基本思路是估算出总量生产函数后,采用产出增长率扣除各投入要素增长率后的残差来测算全要素生产率增长,故也称生产函数法。在规模收益不变和希克斯中性技术假设下,全要素生产率增长就等于技术进步率。索洛余值法通过一些前提假设将复杂的经济问题简化处理,主要包括:市场条件为完全竞争市场;技术进步是非体现型的、希克斯所定义的中性技术进步;生产要素投入主要是资本和劳动,且资本和劳动在任何时候都可以得到充分利用等。然而,索洛余值法也正是由于这些前提假设,带来了它在使用上的局限性。首先,为了理论上的需要,他在前提假设中要求资本、劳动力得到充分利用,这与实际生产情况差别较大。其次,索洛的方法是借助经济计量和数学推导,用总生产函数间接地测定“余值”作为技术进步的贡献。这个“余值”是总产出增长率与各要素投入增长加权总和的差额。显然,“余值”不仅包含了狭义的技术进步,还包括了其它因素的影响,如市场环境的改善、自然灾害的减少、劳动质量的提高等。如果不能区分这些因素,将直接导致技术进步贡献力的高估。 此后,美国经济学家Denison提出了用增长核算法来计算TFP。他认为,Sollow测量的技术进步之所以存在一个较大的TFP增长率,主要是由于对投入增长率的低估造成的,而这种低估则又是由于对资本和劳动两种投入要素的同质性假设造成的。因此,在对美国经济增长的研究中,他对投入要素进行了更为细致的划分,如将劳动投入分解为劳动时间,就业状况等因素。而最终估算出的美国1929至1948年TFP增长率对国民收入增长的贡献为54.9%,显著低于Sollow的估算。对TFP方法论研究有重要贡献的另外一位学者就是美国经济学家Jorgenson。Jorgenson的研究从某种意义上说是从对Denison研究方法的详细考察开始的。Jorgenson和Griliches1967年发表了一篇评论Denison方法的文章“解释生产率的变动”,文中指出了该研究方法中的几个明显的问题。一是在Denison的研究中混淆了折旧与重置的区别;二是在处理总产品的测定中的折旧时和处理资本投入测定中的重置时存在方法上的不一致。同时,他提出了新的资本投入测定方法,克服了Denison方法中的内部不一致性。此后,Jorgen-son采用比Denison更为精确的方法对1948至1979年美国经济增长进行了估算, 将TFP增长率对美国经济增长的贡献缩减到了23.6%,位居资本与劳动之后。 在TFP研究的初期,多数学者采用增长核算法来测量TFP。随着研究的深入,又出现了一些新的计算方法。如Farrell(1957)首次通过构造确定性的生产前沿面,来测量技术效率。Aigner等人(1977)首次采用包含随机误差的随机生产前沿模型。Charnes等人(1978)首次提出了数据包络分析法。Malmquist指数方法也是一种被广泛采用的方法,它是基于数据包络分析法而提出的。1982年,Caves等人提出了由Tornqvist推算出Malmquist指数的计算方法,并首度将此指数用来作为生产率指数使用。 对中国经济增长的研究。在对中国经济问题研究的学者中,我们不得不提到邹至庄(Chow)先生。他从上世纪80年代就开始关注中国的经济发展,是较早研究中国经济的外国学者之一。他主要的研究工具是总量生产函数。邹至庄(1993)对中国1952至1980年农业、工业、建设业、交通运输业和商业五个行业的生产函数进行估计,测算了资本对经济增长的贡献。他认为这个时期,中国没有技术进步,是资本投入推动了经济的增长。邹至庄和Li等人(2002)再次通过估计C- D生产函数,来解释1952年以来中国的经济增长。结果表明,中国在1952至1978年间的TFP保持不变,1978至1998年间的TFP年均增长率为2.7%,1978至1998年资本、劳动、TFP对经济增长的贡献分别为62%,10%,28%;文章认为,鉴于资本对GDP的高贡献率和较高的产出弹性,即使TFP在以后的10年间有所下降,中国经济仍然能够保持至少7%的增长率。自从1997年亚洲发生经济危机以后,美国经济学家保罗·克鲁格曼(Paul Krugman)认为中国的全要素生产率太低,不足以支持可持续的增长。克鲁格曼在他的著作《萧条经济学的回归》中特别指出了中国经济增长的问题。尽管他赞扬中国:“在近20年的时间里,其10多亿人口的收入提高了4倍。在人类历史上,还从来没有如此多的人,在物质生活方面经历如此快的改善。”但与此同时,他也认为:“亚洲取得了卓越的经济增长率,却没有与之相当的卓越的生产率增长。它的增长是资源投入的结果,而不是效率的提升。” 二、国内研究的现状 国内学者对TFP的研究始于上世纪80年代初。史清琪(1985)较早地开展了度量我国技术进步的研究。魏权龄(1988)首先将测度相对效率的DEA方法引入中国,促进了DEA方法在国内的普及和推广。我国目前TFP的研究,多数是建立在西方经济增长理论和研究方法之上。国内学者的研究方向主要集中在以下几个方面。 1.国内某些行业或不同类型企业的生产率研究。谢千里等人(1995)测算了1980至1992年中国工业生产率的趋势,发现1988至1992年工业生产率增速减缓,主要原因有三:设备利用率下降、国企改革的选择性差异以及国有工业的资本收益率下降。郑玉歆等人(1995)认为,不同的行业由于其技术性质的不同以及产品所处的生命周期阶段的不同,生产率变动的模式以及技术进步的模式往往也不同。姚洋(1998)采用第三次工业普查的资料研究了非国有经济成分对我国工业企业技术效率的影响,发现三资企业的技术效率明显高于国有企业的技术效率。刘小玄(2000)研究了国有企业与其它企业的效率差异问题。结果表明,在不同所有制类型的企业中,私营个体企业效率最高,三资企业其次,股份制和集体企业次之,国有企业效率最低。郑京海、刘小玄等(2002)对1980至1994的700个国有企业样本,采用Malmquist指数法,考察了企业的生产率。研究结果表明,尽管生产率有所增长,但主要来源是技术进步而不是技术效率。徐正革、肖秋(2005)研究了1995至2002年部分大中型工业企业TFP的增长趋势,发现以1998年为分割点,生产率的增长趋势是前降后升。 2.宏观经济和区域经济生产率研究。生产率是衡量经济发展质量的一个很重要的指标,加强生产率的研究对及时调整产业结构、合理配置资源以及防止经济增长泡沫具有重要的参考作用。国内学者在这方面也做了许多卓有成效的研究。叶裕民(2002)运用经济增长核算模型考察了26个省份的TFP,发现经济增长比较快的省份反而比经济增长相对较慢的省份TFP的贡献要低。张军和施少华(2003)运用C- D生产函数通过对1952至1998年中国经济统计数据的回归分析,发现中国经济的TFP在改革开放以后有了明显的提高。胡鞍钢、郑京海(2004,2005)发现中国TFP在上世纪90年代以后呈现下降趋势,并分析了TFP下降的各种原因:过早地进入资本深化过程,创造就业岗位越来越少,出现了下岗和失业高峰,收入分配越来越不平等,各类寻租活动十分活跃等等。郭庆旺、贾俊雪(2005)认为1993年以来,中国生产率出现下降趋势,直到2000年以后出现上升势头,究其原因主要是技术进步率偏低、生产能力没有得到充分利用、技术效率低下和资源配置不尽合理。 3.TFP的要素投入度量、发展规律等其他方面的研究。郑玉歆、许波(1992)对计算生产率中的资本存量和资本投入度量的若干重要概念和基本框架进行了讨论。李京文等人(1993)采用了Jorgenson方法,分析比较了中美日三国生产率与经济增长的关系。郑玉歆(1998,1999)针对学术界对东亚是否存在增长奇迹的争论,提出了自己观点。他认为不同的计算方法会导致不同的TFP结果,且TFP的增长规律与经济发展阶段是紧密相联的。他还进一步提出TFP对经济增长的高贡献率一般只有进入经济增长减速的成熟期才会发生。李京文、钟学义(1998)主编的《中国生产率分析前沿》发展了生产率的新概念,结合中国的实际情况,对要素投入的测算方法进行了研究和改进。孙巍(2000)研究并建立了生产领域资源配置效率测定的理论体系,并对我国工业企业的资源配置效率进行了实证研究。易纲等人(2003)认为新兴经济国家由于与发达国家的投资方向不同,导致其技术进步机理也不同,因此TFP的测算方法也应有所区别。颜鹏飞、王兵(2004)认为,由于技术进步减慢,1997年之后全要素生产率的增长出现了递减,且技术进步已成为各个地区生产率差异的主要原因。 经过几十年的发展,关于TFP研究的基础理论和方法日渐成熟,国内TFP的应用研究与现实的经济形势紧密结合,研究成果也相当丰富,对宏观经济政策的制定与调整都起到了重要的参考作用,但国内研究理论的方法多数是建立在西经济学的基础之上,要想对TFP进行深入的研究,还应加强生产率的基础理论和方法的研究。已有的文献对全要素生产率的考察大部分都是基于国家层面的数据,很少对一个地区的全要素生产率进行分析考察。