德国Q系列燃气计量表及其应用

介绍德国Q系列燃气表的结构及工作原理、技术数据、试验记录、选型与施工要求、实际应用。     

BMW汽车空调系统介绍

本文介绍了BMW空调系统由传感器类部件、IHKA控制模块、执行器类部件、辅助元件四大部分组成,重点说明了AUC传感器、鼓风机、蒸发器、空调压缩机的工作原理。     

浅谈CA6140型车床电气检修

技工院校教材《常用机床电气检修》第二节＂CA6140车床电气检修＂,主要讲授CA6140型车床的基本结构、主要运动形式、电气控制线路的组成及工作原理以及常见故障检修方法。笔者从教材分析、学情分析、教学目标、重点难点、教法学法、教学过程这六个方面构思教学设计。     

西门子di/dt跳闸装置的原理及应用探讨

探讨直流高速断路器用西门子3UB6/型di/dt跳闸装置的应用及作用原理     

档案管理原理在档案管理现代化中的应用探讨

档案管理的原理和档案管理现代化之间有着紧密的联系。虽然档案管理的方式、制度等方面在不断的发展和变化,但档案管理的原理始终不变,只是在不同的时代条件下进行了合理的利用。只有这样,档案管理的现代化才能够得到更好的发展。本文重点阐述档案管理原理、档案管理现代化的必要性和档案管理现代化建设的重点。     

激光打印机工作原理及典型故障分析

本文就激光打印机的工作原理、常见故障的判断及处理做简要的分析,便于激光打印机使用者遇到常见故障时能自行排除。     

电磁炉工作原理和两例维修经验

本文分析了电磁炉的工作原理,并根据电磁炉的电路组成及特点,列出了电磁炉检修流程图。并以两例维修经验为例,对检修步骤及检修思路作较详尽的阐述,以此说明实际维修操作工艺。针对其他型号的电磁炉可以按照同样的分析思路,排除相应故障。     

微波炉工作原理和两例维修经验

本文分析了微波炉的工作原理,并根据其电路组成及特点,列出了基本检修流程。最后以两例维修经验为例,对检修步骤及检修思路作了较详尽的阐述,以此说明如何进行实际维修,其他型号的微波炉都可以按照同样的分析思路举一反三,排除相应故障。     

回转窑冷却器的料层控制

分析了回转窑竖式冷却器内物料冷却质量对助燃效果和出料温度的影响,强调了竖式冷却器内料层控制的重要性,并在实践的基础上总结了控制要点。     

浅谈刀具半径补偿原理及应用技巧

在实际数控铣床操作过程中,经常遇到一个零件为达到精度要求必须分粗、精加工的情况,这样就需要进行二次编程。但是如果能精通刀具补偿应用,就可以用同一程序来代替二次编程,降低程序编制工作量,实现同一程序粗、精加提高编程效率的目的。     

Psychological Type and Public Relations: Theory,Research, and Applications

This research applies psychological type theory (articulated by Jung and developed by Myers) to public relations, especially to matters of persuasion and message effectiveness. It includes an instrument developed to measure characteristics inherent in messages that relate to how persons gather information and make decisions. It reports a preliminary study that supports the hypothesis that a person will prefer a message that exhibits the characteristics of his or her own psychological type, and it offers guidelines for using psychological type theory in the production of public relations messages.     

转换企业经营机制分流安置富余人员

介绍上海公交安置员余人负的基本情况、主要做法和多项措施,文末列出作者的4点体会。     

Nonprofit Leader Perceptions of Operating Reserves and Their Substitutes

This exploratory study has three objectives: (1) to understand the various ways academics, consultants, and practitioners conceptualize operating reserves; (2) to explore differences among academic findings, consultant recommendations, and nonprofit leader perceptions of operating reserves; and (3) to identify how practitioners operationalize operating reserves within their organizations. Using intensive interviews with nonprofit executives, we find that the operating reserve ratio (ORR) commonly used in the nonprofit literature does not accurately indicate whether an organization holds an operating reserve according to nonprofit leaders. In addition, results indicate that experienced nonprofit leaders perceive a variety of other fund types including endowment and investment savings as well as ability to borrow, other assets, sister foundations, and donor networks as legitimate substitutes for a reserve.     

Agricultural Biotechnology and the Precautionary Principle

The precautionary principle (PP) has come to the fore in agricultural biotechnology debate. It calls for early measures to avoid and mitigate uncertain environmental damage and health hazards in the future. This summary article reviews the discussion on the PP. Main arguments for and against invoking the principle in the context of genetically engineered crops are considered.     

香港供水的经营状况

介绍香港供水概况及经营现状。文末列出三点体会。     

玻璃钢夹砂管及其应用探讨

介绍玻璃钢夹砂管的主要性能特点,其设计与施工中应注意的几个问题,包括连接方法、管道的基础、管区的回填、管道的埋深与防脱节措施。最后,提出几点建议。     

提高水泵运行效率的研究

分析了水泵运行中效率低下的原因,提出了几项措施,探索更为合理的提高水泵运行效率的方法,以达到节约运行费用、保障供水的目的。     

天然气发动机的应用

介绍推动天然气发动机应用的必要性及其在空调制冷和汽车上的应用。