Automatic control strategy and its test analysis for the heavy truck AMT

By analyzing the startup process of automated mechanical transmission(AMT), fuzzy control algorithm of clutch engagement speed and constant engine speed in part during startup are proposed based on comprehensive consideration of driver’s startup intention and startup performance indices. Through dividing shift process of AMT into seven stages, clutch control logic and goal speed control algorithm of engine during the shift process are put forward. Aiming at the emergency braking condition, a control strategy of jump downshift during braking and a determination method of target gear are also proposed. In order to verify the validity of control strategy, an AMT prototype vehicle is developed and the test of startup, shift and jump downshift are carried out.     

Experimental Analysis on Duty Ratio Fuzzy Control for Fan-coil Unit

A new type of energy efficiency control method for fan-coil unit is presented. By introducing the conception of duty ratio into electric valve control, the cooling and dehumidifying capacity of fan-coil unit is fully utilized. By means of Mamdani type fuzzy rule and the Method of Functioning-fuzzy-subset Inference, duty ratio of valve and fan speed signal are identified according to deviation and deviation change of room temperature. It is shown that presented method could achieve at least 30% energy saving than traditional control method as well as a preferable room temperature control effect.     

陕西省2020年需水预测研究

本文用多种数学模型和分类用水定额法对陕西省2020年需水进行了预测,预测结果表明一元线形回归模型和灰色预测模型在需水预测中有一定的局限,而神经网络和分类用水定额法的预测有较好的效果和精度,可以为陕西省水资源的合理配置和规划管理提供参考。     

浅析新《环保法》第九条规定下的环境教育义务主体

指出了历过4次审议,《中华人民共和国环境保护法(修订草案)》(以下简称新《环保法》)经第十二届全国人大常委会第八次会议表决通过,将于2015年1月1日起施行。新《环保法》第九条详细规定了在环境教育工作中的义务主体,相比以往的立法实践有了新的突破。新《环保法》明确了政府的环境教育义务,并将承担义务的主体进一步扩大到了乡镇人民政府。教育行政部门和学校在环境教育中发挥着重要作用,此次修订对以往的法律规定进行了肯定和强化。新闻媒体在环境教育制度的建设中扮演着越来越重要的角色,重视和加强媒体的宣传教育和舆论监督作用势在必行。作为环境保护领域的基本法,新《环保法》的出台将有助于我国环境教育制度更加全面健康地发展。     

关税收入效应和关税税率的图解分析

对于发展中国家来说,应该从财政收入和调控进出口贸易两方面来定性、定量地研究关税问题。在均衡模型基础上分析了关税的收入效应,用关税收入限定的国内提供曲线族(HRC)对关税效应分析的Meade技巧做了改进,使一般均衡分析中关税收入效应和关税税率明确化,用HRC分析了最佳关税和最大收入关税,研究结果更具有一般性。对HRC曲线与国外提供曲线的低位置交点给出了正确的解释。     

障碍中国国民汽车消费的因素

文中以汽车工业、消费者及我国现阶段发展水平三方面为基础，分析、探讨了汽车价格、购车税费、维修保养、消费观念、使用空间、能源问题等几方面障碍中国国民购买汽车的因素，进而提出了提高中国国民汽车消费水平的途径。     

认罪认罚从宽制度中量刑辩护问题研究

认罪认罚从宽制度的改革为量刑辩护提供了发展空间，量刑辩护具有提升认罪认罚从宽制度稳定性、平衡各诉讼主体的诉讼利益、保障被追诉人合法权利等重要价值。但目前认罪认罚从宽制度下量刑辩护的推行存在着困境，在量刑指导意见的完善、量刑协商机制的规范化、相对独立量刑程序的落实、强制法律援助制度的实施与量刑辩护的专业化五个方面加以改进是实现认罪认罚从宽制度下有效量刑辩护的重要措施。