室内空气污染及防治对策

从室内空气污染的来源入手，分析了目前我国室内空气质量控制存在的主要问题，针对我国国情，从社会、经济、技术角度提出目前我国室内空气污染防治应首先着手解决实际问题和今后将要实施的行政管理策略及技术防治策略。     

FHD-1型质子磁力仪的改进与完善

根据FHD 1型质子磁力仪在实际使用过程中存在的一些问题 ,以及一些用户提出的建议和要求 ,对FHD 1型质子磁力仪的实时时钟、标定方法、通用性与适应性、抗干扰能力方面进行了改进和完善 ,本文对此作介绍。     

Reactions to psychological contract breach: a dual perspective

This study examined reactions to psychological contract breach from two separate perspectives, that is, employee's reactions to perceptions of employer breach and supervisor's reactions to perceptions of employee breach of the psychological contract. In addition to the main effects, we also hypothesized that the benevolence (or kindness) of the supervisor and the traditional values (or respect for authority) of the employee would attenuate the negative effects of psychological contract breach. We tested these hypotheses with a sample of 273 supervisor‐subordinate dyads from the People's Republic of China. The results showed that employer breach correlated negatively with employee outcomes of organizational commitment (OC), organizational citizenship behavior (OCB), and work performance, but this negative relationship was weaker for employees with traditional values. The results also demonstrated that employee breach correlated negatively with responses from the supervisor, in terms of the mentoring provided to the employee and the leader‐member exchange (LMX) quality. However, more benevolent supervisors reacted less negatively in terms of the mentoring than did the less benevolent supervisors. Implications for future research are offered. Copyright © 2007 John Wiley & Sons, Ltd.     

CESSNA172R飞机飞行操纵钢索故障原因分析

CESSNA172R飞机飞行操纵(副翼、升降舵、方向舵、襟翼)系统钢索多次发生磨损、断裂故障,严重威胁了飞行安全。根据该机型结构设计特点,通过相似机型系统类比、数据可靠性分析等方法分析了各飞行操纵系统钢索失效的主要原因,提出了预防飞行操纵钢索失效的措施。通过调整飞机的操纵钢索系统的维护周期,改进钢索的检查和维护技术,提高飞机在全寿命周期中的安全可靠性。     

由构件裂缝对钢筋砼结构作应急可靠性鉴定

当建筑物出现重大问题或险情时,由构件裂缝的外观和成因对钢筋混凝土结构进行分析和应急评定,可快速、简便地发现事故原因和危险程度,从而为处理工程事故提供定性依据。     

无缝钢管厂轧制烟尘处理设计及运行

针对无缝钢管厂轧制烟尘的特殊性,采用一种全新的处理工艺流程——高频振动水膜法。运行实践表明：该处理工艺技术先进,投资省,运行成本低,操作简便,运行稳定,除尘效果好。     

Modeling and safety strategy of passenger evacuation in a metro station in China

The construction of metro in China is in a period of an unprecedented development in recent years, and the passengers are in high density within the metro during the operation time, the problem of occupant safety in emergencies has attracted more and more attentions. During the design and operation stages, modeling of the metro station evacuation capacity by using the computational models is an effective measure for guaranteeing the metro evacuation safety in the future. In this article, the safety strategy of evacuation in metro stations is first investigated and established, which involves the occupants needed to be evacuated, the evacuation route, and the safety zone. Then, an engineering calculation method for the metro station evacuation time is proposed. Based on the experimental data, simulation of evacuation process in different fire cases is conducted by using an agent-based model, so as to study the features of occupant evacuation behavior, the evacuation time, the passage flow rate, and the strategy of using the escalator as evacuation passage. These conclusions will be helpful for guiding the safe evacuation design of metros in China.     

中国能源安全及其资源开发与利用的策略研究

通过采用“霍夫曼系数”的分析方法,提出能源危机是国家在工业化过程中的必经阶段,并从资源经济理论角度认识我国经济增长对资源消耗的关系,剖析国际能源危机背景与经济格局的成因。中国目前和今后主要受制于国内资源不足,要应对能源危机,只有实现多元化的策略,才能保障能源的供应,实现我国经济社会和谐、稳定、可持续发展。因此,能源资源开发与利用策略的研究具有极其重要的现实意义。     

蒸汽排放降噪式污水回收装置研究及应用

注汽锅炉是稠油油田热注作业生产使用的主要设备,当需要停止注汽或需要维修时,需将炉内的高温高压蒸汽进行排空,才能保证安全作业;而高压蒸汽直接进行排空时,会产生120 dB(A)以上的强烈的噪声污染,针对此问题曙光油田研制了"蒸汽排放降噪式污水回收装置"。文章介绍了其降噪及污水回收原理,对其现场应用情况进行了说明。实际应用效果表明,该装置可以达到降噪、节水、减排多重作用。     

大庆地区总悬浮微粒乙醇溶物和水溶物污染状况分析

通过对大庆地区总悬浮微粒（TSP）中主要化学组成─—乙醇溶物和水溶物的测定分析得知，乙醇溶物占TSP的年均值为12．25％，高于北京市（6．41％），在空气中的平均浓度为0．0148mg／m3。乙醇溶物中有机物平均占58.6％，多为含羟基的有机物；无机物主要是控的硫酸盐和硝酸盐。水溶物占TSP的平均值为27.93％，高于北京市（11．29％），在空气中的平均浓度为0．0324mg／m3。从TSP中乙醇溶物和水溶物的测定结果可以看出各测点采暖期乙醇溶物、水溶物的浓度显著高于非采暖期，但其致突变强度比北京市弱。