人力汽车让拜金女哭不出来

拜金女马诺有一句名言，大概意思是宁愿在宝马汽车中哭，不愿在自行车后面笑。不过如今能源危机，将来的汽车采用新动力在所难免。

人力汽车的提出及其动力系统设计

人力汽车是集多种动力源于一体的的新型零排放微型汽车,驱动汽车行驶的动力源可大致划分为三类,即来自乘客本身的体能、来自国家电网的电能和来自宇宙的太阳能。文章通过分析现代混合动力汽车动力传动系统方案的设计思想,着手于人力汽车动力传动系统的整体方案的设计,并对关键动力元件(例如:人体能量集成系统、动力电池、驱动电机、机械耦合变速机构等)进行了相关选型或设计。文章通过对所设计的人力汽车建立三维模型,分析了方案的可行性。

Research on Industry Cluster Competitiveness Based on DEA-Ridge Regression Two-step Method--,Taking the Hunan Automobile Industry Cluster as an Example

Based on DEA - Ridge Regression two-step method, the paper tries to construct industrial cluster competitiveness research framework for empirical analysis, and by the Hunan automobile industry cluster as an example. The study found that Hunan automobile industry cluster competitiveness is relatively weak, full of the very big promotion space; further research shows that the human capital investment, fixed capital investment, land investment and policy support are the main factors influencing the efficiency of automobile industry cluster in Hunan province.