PLC在汽车启动电机测试系统中的应用

本文介绍采用PLC实现汽车启动电机测试系统,完成启动电机的推力、间隙等参数的测量,并判断启动电机是否合格。     

松动圈理论应用概述

巷道围岩松动圈支护理论在地下工程中的应用日益受到重视。本文对松动圈厚度的测试方法、计算方法进行了阐述与分析。另外还阐述了根据松动圈厚度确定围岩类型和支护方法,提出了今后的研究方向。     

常规兵器试验设计和开发过程中的质量控制

通过对常规兵器试验如何进行＂设计和开发过程的质量控制＂这一具体问题的研究,将PDCA循环管理模式用于试验的设计和开发过程。文章结合常规兵器试验设计和开发的工作实际,探讨了在试验设计和开发工作中借鉴PDCA循环理论与实践,进一步提升试验设计和开发的工作效益,使试验设计和开发向标准化发展,进而促进试验设计和开发质量的全面提升。     

煤层气注入/压降测试方法分析及应用

煤层气开发过程中,试井测试作为求取地层参数及对煤层进行定量和定性的评价的手段,是不可或缺的重要环节。本文就注入/压降测试方法的工艺研究、试井解释方法的分析以及与常规油气井测试方法的对比分析,探讨注入/压降测试方法在煤层气勘探开发中的应用。     

A comparative study of performance appraisals,incentives and rewards practices in domestic and multinational enterprises in the country of Brunei Darussalam

Very little work in the past has focused on the comparative analysis of human resource management (HRM) practices between domestic and multinational enterprises (MNEs). The majority of the work in this area has instead concentrated on comparing the HRM practices utilised by the subsidiaries of MNEs, and has mostly been conducted in the context of developed countries. In this paper, we examine how the HR practices of appraisals, rewards and incentives are offered, explained and monitored in domestic enterprises (DEs) versus MNEs, and how they are similar or different in nature. This paper is based on primary data collected from a cross-section of firms operating in the country of Brunei Darussalam – a context within which no previous work of this nature has been undertaken. An analysis reveals several interesting results: HR practices are more advanced and better structured in MNEs that conduct performance appraisals (PA) more frequently than DEs, and their feedback system is also rapid; incentives and rewards systems in MNEs follow market ethos and principles; the HR directors and employees of MNEs are more receptive to PA than those in DEs whilst, in contrast to DEs, incentives and rewards systems in MNEs follow market ethos and principles. Furthermore, with regard to size, younger firms are more likely to be following market principles in terms of explaining incentives and rewards systems to their employees, whilst older firms claim that working for them carries social and psychological benefits for employees.     

The dynamic interactions among the stock,bond and insurance markets

This paper explores the lead–lag relationships and the dynamic linkages among stock, insurance and bond markets in the developed countries. This is the first empirical study which sheds light on the extent and magnitude of the association among these financial markets used by the Granger causality test of Toda and Yamamoto (1995), generalized impulse response approach, and generalized variance decomposition in a multivariate setting. Our empirical results illustrate that there are indeed various patterns of dynamic relationships. The direction of causality appears to differ across countries. While investigating these interactive relationships under unexpected shocks, there is a one-way significant influence between the life insurance premium and long-run interest rate. These empirical findings serve as valuable applications not only for investors to diversify their risk away as well as to earn the abnormal return, but also for policy-makers to allocate resources more efficiently.     

硫酸庆大霉素注射液无菌检查方法学验证

建立硫酸庆大霉素注射液的无菌检查方法。本试验取硫酸庆大霉素注射液,按《中国药典》2005年版二部附录所载的＂无菌检查法＂项下进行方法学验证试验。结果表明：采用本试验方法进行硫酸庆大霉素注射液的无菌检查,供试品无菌生长,而六株阳性菌生长良好,该方法可行。     

汽车柴油发动机可靠性试验的重要性和必要性

文章针对当前汽车柴油发动机产品在可靠性方面存在的主要问题,结合国家试验标准,通过列举某台国产汽车柴油机可靠性试验中出现的故障情况及排除措施,纠正此类可靠性试验保养操作中的常见误区,阐明进行汽车柴油机可靠性试验的重要性和必要性。     

飞行器风洞试验标模体系研究初探

风洞试验标模是一种评估风洞试验准度和验证CFD算法的通用校准模型。本文归纳分析了北大四洋公约组织AGARD系列、法国ONERAM系列为代表的国外风洞试验标模发展情况,阐述了我国DBM、GBM、HSCM风洞标模系列的发展现状,探讨了建立和完善风洞试验标模体系的一些问题,意在为国内风洞和试验技术发展提供参考。     

关于考查课教育及成绩评定的思考与探索

剖析了考查课教育及成绩评定现状中的弊端,从纳什均衡的角度分析了要达到最优状态必需进行考查课教育与成绩评定改革。关于考查课教育及成绩评定,文章做了详细地思考和探讨,指出通过研发基于层次分析法的考查课程成绩管理系统来完成成绩的评定,给出的评定准则科学客观公正。该网站的建立实现了考查课程成绩评定的自动化、督促了教师对考查课教育的改革、最大限度的维护了学校开设考查课程的初衷。