我国配电系统及其自动化技术的探讨

本文分析了我国配电系统现状及其自动化技术的发展的过程，提出了我国在信息化的基础上实现配电系统及其自动化的对策。     

关于球形电极Zn-Cu电池的Ohmic电阻和Joule热电阻的理论研究

当Zn-Cu伏打电池处于缓慢、均匀稳定的放电状态时,Joule热电阻不等于Ohmic电阻R.从能量上来考虑,电池中不仅电能转化成热量,化学能也转化成热量.涉及由电能I所带的离子,而R则涉及电解质中所有离子.     

宇宙起源的量子理论

量子宇宙学理论是自大爆炸理论建立以来我们了解宇宙的最重要阶段。这一理论体现了如下观念:宇宙的边界条件就是宇宙没有边界,整个宇宙只由物理定律决定,不需任何初始条件。这一理论也为解决宇宙奇点疑难,宇宙的起源提供了一种可行的方案。     

对兵器作为西周质剂标的的考辨

兵器是否为西周质剂标的,可否在市场中交易,学界存有分歧。根本原因在于《周礼》与《礼记》中与此相关的记载不相一致。本文从古籍文本入手,联系西周时期的社会生活状况,剖析《周礼》与《礼记》中所称"市"的含义,作为一种小宗买卖物即"小市"的兵器,确是西周质剂标的之一,但其流通领域相当有限,只限于为奴隶主贵族而设的"大市",而在为一般商贾与平民而设的"朝市"与"夕市"中,兵器不能交易。     

土壤源热泵空调系统在北京别墅区的推广与应用

别墅作为高档建筑,主要强调舒适性,对于居住环境的要求是比较高的。北京地区分布着大量的别墅,由于地域的限制,采暖不能依靠传统方式。本文在综合分析各种采暖方式的基础上,提出推广一种新型环保、节能、舒适的取暖方式,土壤源热泵空调。并通过所做样板工程说明这一系统在北京别墅区的推广的可行性和优越性。     

内置电加热管烘干机小麦加热特性

采用内置远红外线电加热管烘干机加热小麦 ,对物料层升温速度和温度分布均匀性与穿透风速的关系进行了单因素试验和四因素二水平的正交试验研究 ,结果表明 ,物料内层的升温速度及内外层温差均随穿透风速的增加而降低 ,内外层温差随加热时间先增大后减小 ;并给出四因素之间的较优参数组合     

发展楼宇冷热电联产 合理利用天然气

根据我国天然气的现状,分析了天然气的使用方向和原则,介绍了楼宇冷热电联产系统,并指出了BCHP是合理高效利用天然气的最佳方式。     

基于大数据的科技评价方法研究

科技评价对象所涉及的数值、图像、声音具有全媒体、多维度、跨时间的特性,挖掘和运用这些海量数据,转化为直观的、随时间和空间变化的、以图形图像呈现在同行评议专家面前,可以有效提高评价的效率和效果.通过建立众包模式、数据整合和提取规则知识、将科技评价结果应用于实践、建立评价过程交互式可视化的流程以构建基于大数据的科技评价模式,这种模式存在着观念陈旧过时、数据挖掘能力、大数据处理速度、科技评价数据安全等方面的挑战.     

The next industrial revolution: Integrated services and goods

The outputs or products of an economy can be divided into services products and goods products (due to manufacturing,construction,agriculture and mining).To date,the services and goods products have,for the most part,been separately mass produced.However,in contrast to the first and second industrial revolutions which respectively focused on the development and the mass production of goods,the next - or third - industrial revolution is focused on the integration of services and/or goods; it is beginning in this second decade of the 21st Century.The Third Industrial Revolution(TIR) is based on the confluence of three major technological enablers(i.e.,big data analytics,adaptive services and digital manufacturing);they underpin the integration or mass customization of services and/or goods.As detailed in an earlier paper,we regard mass customization as the simultaneous and real-time management of supply and demand chains,based on a taxonomy that can be defined in terms of its underpinning component and management foci.The benefits of real-time mass customization cannot be over-stated as goods and services become indistinguishable and are co-produced - as "servgoods" - in real-time,resulting in an overwhelming economic advantage to the industrialized countries where the consuming customers are at the same time the co-producing producers.     

Making sense of absolute measurement: James Clerk Maxwell,William Thomson,Fleeming Jenkin,and the invention of the dimensional formula

During the 1860s, the Committee on Electrical Standards convened by the British Association for the Advancement of Science (BAAS) attempted to articulate, refine, and realize a system of absolute electrical measurement. I describe how this context led to the invention of the dimensional formula by James Clerk Maxwell and subsequently shaped its interpretation, in particular through the attempts of William Thomson and Fleeming Jenkin to make absolute electrical measurement intelligible to telegraph engineers. I identify unit conversion as the canonical purpose for dimensional formulae during the remainder of the nineteenth century and go on to explain how an operational interpretation was developed by the French physicist Gabriel Lippmann. The focus on the dimensional formula reveals how various conceptual, theoretical, and material aspects of absolute electrical measurement were taken up or resisted in experimental physics, telegraphic engineering, and electrical practice more broadly, which leads to the conclusion that the integration of electrical theory and telegraphic practice was far harder to achieve and maintain than historians have previously thought. This ultimately left a confusing legacy of dimensional concepts and practices in physics.