Improvement of Air-Distributing System of the Pneumatic Impact Machines for Trenchless Technologies

The process of actuation is considered for the inertial element in the improved air-distributing system of pneumatic puncher whose dimensionless parameters are determined.     

板式换热器热端跑冷问题的分析及处理

１００００ｍ３／ｈ制氧机板式换热器损坏修复后，热端跑冷严重，氧气取出量不足，制氧机工况恶化，通过分析找出了原因是因某单元氧通道堵塞，并采取了处理措施。     

B. F. Skinner: Au-delá de la controverse.

Discusses controversies surrounding the work of B. F. Skinner's influence on various theories of human and animal behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

一种蒸发式冷凝器的新型设计方法

蒸发式冷凝器设计方法的粗糙和繁琐限制其广泛应用,特别是限制其应用于民用和小型商用建筑中。针对上述问题,作者通过实验研究了蒸发式冷凝器的影响因素（进风湿球温度、最小截面风速和喷淋水量）对蒸发式冷凝器热质交换的影响。同时提出了一种新型设计方法,此方法简单,精度较高。适合工程设计、选型和生产应用。     

合理选用过剩空气系数的重要性分析

通过分析过剩空气系数过大或过小时加热炉多方面的影响,强调了合理选用过剩空气系数的重要性,并提出了控制措施。     

关于空调水系统节能的探讨

以空调冷冻水系统的节能为例 ,探讨空调系统节能的途径、存在的问题及解决办法     

珠海拱北口岸联检大楼空调设计

介绍了珠海拱北口岸联检楼空调系统的设计特点，提出了按建筑类型、功能进行空调系统分区的设计方法，强调应根据建筑物的具体情况设置设备用房，以保障空调系统正常有效地运行。     

简述空调环境微生物传播及防治

简要论述了一般空调环境下的主要微生物种类及其主要传播方式，分析了影响其传播的因素，同时介绍了现在常用的防治方法，提出了一些改进的意见。     

Hard disc drive air bearing design: modified DIRECT algorithm and its application to slider air bearing surface optimization

Hard disk drives continue to increase in areal data density. This requires air bearing sliders with lower and lower flying heights (FH). Also the uniformity of the FH and the flatness of the roll profile with radius become more critical as the FH gets lower. By using modern optimization techniques, it is possible to optimize slider air bearing surface (ABS) designs according to multiple design goals. In this paper, we discuss two modifications to the DIRECT algorithm: one to handle tolerance and one to deal with hidden constraints. Some numerical experiments were carried out using these modifications and the modified DIRECT algorithm was applied to slider ABS optimization. The results show that these two modifications can improve the efficiency of the DIRECT algorithm and they also provide more flexibility in slider ABS optimization.     

蒸发式冷凝在制冷工艺上的应用

分析对比制冷工艺中几种冷凝方式，指出发展蒸发式冷凝技术对制冷系统节能的重要意义；通过分析蒸发式冷凝的换热机理，在试验和实践的基础上讨论了影响蒸发式冷凝器性能的几个重要因素。