崔军高级工程师,目前担任全国绝热材料标准化技术委员会秘书,南京玻璃纤维研究设计院质检中心绝热室副主任,ISO/TC163/SC3/WG12工作组召集人,CSTM/FC03/TC05绝热吸声材料技术委员会委员。

关键词：绝热材料;标准化工作;南京玻璃纤维研究设计院;ISO;国际标准化组织;建材行业标准;棉制品;能耗测试;硅酸铝;气凝胶;

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近年来,国家进一步实施支农惠农政策,扩大农机购置补贴的额度与范围,极大地提高了各地农机合作社、农机大户等购买农机的积极性。与此同时,在一些地区农业机械推广鉴定工作中依旧存在体系不完善、基础设施建设滞后、工作内容繁琐而重复等问题,急需解决。基于此,本文提出了完善农机推广鉴定体系等3方面措施,供相关人员参考。

关键词：农业机械;;推广鉴定;;工作措施

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借鉴当初燃油车的普及经验,电动汽车的市场规模必须首先依赖于公共交通领域。除了公交巴士车之外,作为城市公交系统中的重要组成部分,出租车、共享汽车以及电动物流车能够全面改换成电动汽车,将迅速推动和左右中国乃至全球的电动汽车市场的发展。事实上,公共交通车辆才是能源消耗的大户。截止到2017年,我国共有公交大巴50万台、出租车120万台,虽然仅占全国机动车总量的1.7%,然而耗油量却占到了27%,排放总量更

关键词：物流车;物流成本;新能源汽车产业;电动汽车;纯电动车;电动出租车;

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随着世界贸易自由化、经济全球化的不断加深,越来越多的机械产品出口到欧盟。CE认证在欧盟市场属于强制性认证,是机械产品进入欧盟及欧洲贸易自由区国家市场的通行证。介绍了机械产品认证的标准与技术法规、机械产品认证的合格评定程序以及第三方实验室CE认证的流程。详细介绍了机械指令对CE标志的规范要求和加贴CE标志的方式。CE认证的机械产品,达到了指令规定的安全要求,提升了产品质量,增强产品市场竞争力,获得消费者和市场监督机构的信任。

关键词：欧盟;;机械产品;;CE认证;;CE标志

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针对加装超级电容的电动汽车复合储能系统对双向DC/DC变换器动态响应快、低压和大电流的要求,选择了一种交错并联双向DC/DC变换器拓扑。它具有开关管电压应力小、输出电压和电感电流纹波小等优点。提出了电压外环、双电流内环的控制构架,并对双向DC/DC变换器进行小信号建模,在此基础上设计了相应的控制器。最后通过电力电子仿真软件进行了仿真。结果表明:所选拓扑及其控制方法能够满足电动汽车复合储能系统的需求。

关键词：电动汽车;;直流/直流变换器;;控制系统设计

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汽车调度作为交通运输的重要组成部分,科学的汽车调度管理是保证交通运输正常的重要前提。汽车调度不仅有助于提高汽车运输的工作效率,而且还可以减少成本支出,实现了汽车效益的最大化。

关键词：汽车调度;;管理措施

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目的分析和评价四川省机械制造企业中噪声危害情况及防护现状,为用人单位提供职业病防治建议。方法收集已有的37家四川省机械制造企业评价资料,对评价资料中不够完善之处予以补充调查并进行汇总,分析噪声在此类企业中的发生规律、分布特点及防护情况。结果本文选取37家机械制造企业,其中成都市7家、遂宁市5家、宜宾市4家、泸州市8家、达州市6家、绵阳市3家、德阳市4家,人员规模主要在10~300人之间。本文仅涵盖噪声8 h连续等效A声级超过85 dB(A)的岗位。结果发现,37家用人单位均不同程度存在噪声8 h连续等效A声级超标的情况,超标率在12.1%~46.4%之间。噪声超标率最高的是下料工,其次为破碎工、喷漆工、木工及机械切割工,打磨工、焊工、试车工、铣工、车工、抛丸工及各类巡检工超标率最低。超标岗位噪声强度多在85~90 dB(A)之间。用人单位的噪声危害防护,设备选型(螺杆式空压机代替活塞式空压机)、机械代替手工(铣床、磨床等代替手持风动工具)均能使噪声超标率降低,数控车床应用未能使噪声超标率降低,但数控车床工平均噪声强度低于普通机床工,采取的固定与隔离措施可使设备噪声强度降低。用人单位均采用了隔声措施,但未设置吸声和消声措施与设施,均对设备进行了日常维护;为劳动者发放的防噪声耳塞均符合标准要求,但均非全员及时正确佩戴。结论四川省机械制造企业噪声危害严重的部分主要分布在下料、破碎、喷漆、木工及机械切割等环节;用人单位对于噪声的防护,在设备选型、工艺选择、减振、隔振、隔声等环节应用较好,但在吸声、消声方面应加强关注,智能化、机械化程度有待提高。

关键词：机械制造;;噪声;;防护

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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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