快递服务质量现状与提升对策研究以圆通快递为例(终稿)大学学位论文.docVIP

继续教育学院毕业论文 题目： 教学形式： 专 业： 学 　 号： 学生姓名： 指导教师： 2016年 月 一、引论 二、论文相关概念释义 （一）快递服务的种类 （二）快递服务的意义 （三）圆通速递的意义 三、圆通速递服务质量现状 （一）圆通速递发展现状分析 （二）圆通速递政策环境分析 （三）圆通速递服务质量现状分析 四、圆通速递服务提升对策 （一）圆通速递服务标准与其他服务标准的比较 （二）圆通速递服务消费者的满意度现状研究 （三）圆通速递服务质量提升对策 五、总结 0 参考文献 11 请删除以下内容，O(∩_∩)O谢谢！！！conduction, transfer of heat or electricity through a substance, resulting from a difference in temperature between different parts of the substance, in the case of heat, or from a difference in electric potential, in the case of electricity. Since heat is energy associated with the motions of the particles making up the substance, it is transferred by such motions, shifting from regions of higher temperature, where the particles are more energetic, to regions of lower temperature. The rate of heat flow between two regions is proportional to the temperature difference between them and the heat conductivity of the substance. In solids, the molecules themselves are bound and contribute to conduction of heat mainly by vibrating against neighboring molecules; a more important mechanism, however, is the migration of energetic free electrons through the solid. Metals, which have a high free-electron density, are good conductors of heat, while nonmetals, such as wood or glass, have few free electrons and do not conduct as well. Especially poor conductors, such as asbestos, have been used as insulators to impede heat flow (see insulation). Liquids and gases have their molecules farther apart and are generally poor conductors of heat. Conduction of electricity consists of the flow of charges as a result of an electromotive force, or potential difference. The rate of flow, i.e., the electric current, is proportional to the potential difference and to the electrical conductivity of the substance, which in turn depends on the nature of the substance, its cross-sectional area, and its temperature. In solids, elec