我国的机械设计行业一直处于落后的状态,在国际同行业中缺乏一定的竞争力。因此,在发展中亟需改变这种现状,以适应当今时代的发展。机械设计工作的进步主要靠具有开拓创新精神的青年学生,所以,对于机械专业学生的培养就成了一个重要的过程。简述对机械设计专业教学方式的变化,对新的教学方式进行了探索。

关键词：机械设计专业;;教学方式;;分层教学

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针对一类具有匹配干扰的二阶机械系统,本文研究了快速有限时间跟踪控制问题.结合有限时间反步法和非奇异快速终端滑模,本文提出了一种新的快速有限时间控制律,并给出了控制器参数所需满足的充分条件以保证系统的快速有限时间稳定性.进一步地,在一定情形下,所设计的快速有限时间控制律能够退化为经典的反步法、有限时间控制律和非奇异快速终端滑模控制律.最终,将所设计的控制律应用于航天器交会系统,数值仿真结果验证了所提方法的有效性.

关键词：机械系统;;快速有限时间控制;;反步法;;参考轨迹跟踪

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电石水解时,每消耗1 t电石产生约1.2 t电石渣(干基),把电石渣转化成新的、附加值高的产品是解决电石渣对环境污染的关键。本文重点介绍了电石渣的成分、产量以及在建材、环境、化工等方面的推广应用,重点介绍了电石渣应用于氧化铝、氯化钙的生产情况。

关键词：电石渣;;环保;;化工;;应用

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文章通过对机械设计制造及自动化应用的分析研究,论述了机械设计制造及其自动化的应用现状,了解其存在的问题与不足,综合实际状况提出了有效的解决对策与手段,最后对我国机械设计制造及其自动化的发展趋势进行简单分析。

关键词：机械设计制造;;自动化应用;;研究

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党的十九大报告提出,要建设知识型、技能型、创新型劳动者大军,弘扬劳模精神和工匠精神。弘扬工匠精神,成为促进企业新时代发展的重要因素。抚顺石化公司工程建设有限公司是以炼化装置检维修为主的技术服务企业。伴随炼化装置大型化、智能化发展进程的加快,对炼化装置维修人员的业务能力也提出了新要求。重

关键词：工匠精神;工作室;抚顺石化;

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当前我国机械化生产愈加发达,逐渐渗透进人们生活领域的方方面面。机械设计零件加工直接影响着机械设备的正常运转,对提高工业生产效率极为重要,然而机械设计零件加工过程中,仍存在较多问题需要进一步优化。本文探究了机械设计零件加工过程中常见的若干问题,并且提出了有针对性的优化措施,以期对促进我国工业经济发展提供参考借鉴。

关键词：机械设计;;机械加工;;材质选用;;优化措施

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本文分析了水产食品安全性的影响因素,包括养殖人员素质、种苗、饵料、渔药,并针对性提出了完善法律法规、提高从业人员综合素质、加强科研创新力度、加强政府的领导和管理、支持合作社的建立等措施,促进水产养殖行业健康、安全、稳定发展。

关键词：水产;;食品安全;;影响因素

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在经济全球化的带动下,以网络等为载体的新经济欣欣向荣。世界经济将在纵向上对工业、供应商、顾客、贸易、物流进行重新分工。物流作为新经济的衍生物发挥着重要的作用。汽车作为运输工具之一,在物流的运作过程中中也起到了重要作用。对于物流企业中的成本,汽车的合理使用也起着关键作用。在采用理论和实际相结合的方法,对汽车的使用的现状进行综合分析,是为了反应出汽车使用对物流成本的影响,从而找出合理使用的方法来达到物流企业运输成本的最低化。

关键词：新经济;;物流成本;;汽车合理运输

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The Chinese economy is booming since the opening up in 1978.Foreign companies decided to enter the Chinese market.The huge population and a strong consumer power makes China attractive for these companies However,this goes together with lots of challenges1.In addition,most of the foreign firms in China fail.Research has been done by lots of scholars to find out the exact reason,but this was unfortunately not enough.Therefore,the author of this dissertation tried to give it another try.The aim is to get a deeper insight in the "How and why"The initial aim of the author was figuring out why the failures rate is so high in different industries.Unfortunately,this topic is too broad and it was therefore necessary to choose one industry which is also representative for others.Another aspect,is that the author wanted to make the dissertation representative with the courses he followed.This dissertation contains Chinese Law,Chinese Management and Marketing,Culture and other relevant subjects which were discussed.Most reasons why companies fail in China can be found in these topics.To make the research more objective,a research question was formulated which acts as a guideline through the whole dissertation.This question is as followed:How should foreign firms operate on the Chinese food and beverage market?The author has chosen to execute a qualitative research2.The reason behind it is that already research has been done on this topic.But still,it is not quite clear why so many companies fail in this industry.Qualitative research is going more deep into the subject without questionnaires,but with interviews with experts in this industry.This is what the researcher has done to establish this dissertation.This report contains primary-and secondary data.The secondary data was collected through case studies.Primary data was collected through interviews with a China Expert,Chinese restaurants with western food and foreign companies active in the Chinese food-and beverage industry in a half-structured way with open and closed questions.The outcome of the research is as followed:Foreign firms should at first change their corporate culture.Afterwards they should keep in mind three basic pillars.These are Management,Law and Culture.This seems logical,but all of the three pillars contain factors which has not been clarified yet.One important result is that firms are not aware that they could be subsidized by the Chinese Government(If they meet the requirements).It is also important to implement localization and decentralization.In addition,extensive efforts should be made to change the corporate culture.Establish a crisis communication plan is necessary in case something goes wrong.Too much companies focus on the present,but they do not have a back-up plan when the other side decides to leave the business.This has been a huge problem recently.Focus on e-commerce instead of complicated business channels.Focus on imperatives like responsiveness,flexibility,improvisation and speed instead of focusing on Quality management,continuous improvement and just-in-time management3,the last three do not work in China.It will be more clarified in the research.The next chapters will discuss the external environment and trends in China.Like the Chinese law,economy,product customization,recycling and management.

关键词：China;

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密集存储系统适用于品类较单一的物品存储,以其极高的空间利用率及低成本优势而具有广阔的应用前景,但其存取方式和效率存在一定的局限性。因此,在选择密集存储解决方案时,首先一定要充分了解使用需求以及业务模式,其次要以好的产品质量和服务作为支撑。

关键词：客户需求;堆垛机;存储系统;市场部;机械设备;

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