浅谈电力线路常见故障的原因及处理方法

电力线路按架设方式分为架空线路和电缆线路及变压器.电力架空线路故障包括导线的损伤故障、导线发热故障、接地故障、雷害故障、弧光短路故障等.电力电缆故障包括低电阻接地或短路故障、高电阻接地或短路故障、断线故障、闪络故障、复合型故障等.变压器的常见故障有绕组匝间或层间短路、分接开关烧损等.     

浅谈变压器的运行检查维护及其故障处理

变压器在发生事故之前,通常都会有异常情况,因为变压器内部故障是由轻微发展为严重的.变压器的故障常被分为内部故障和外部故障两种.内部故障为变压器油箱内发生的各种故障;外部故障为变压器油箱外部绝缘套管及其引出线上发生的各种故障.文章主要分析变压器运行的检查维护及故障处理的方法,可供广大同行技术参考.     

军用车辆虚拟故障训练系统设计

军用车辆的故障训练一般只能进行故障部位的实习,在实车设置故障存在费时、费力、易损坏车辆、能设置的故障少、限制条件多等难题。虚拟故障训练系统有效地解决了故障训练的诸多难题,并可以实现故障训练、故障学习、考核评估等功能。该系统能大大提高军用车辆维修人员判断排除故障的能力,有效地节约了训练经费。     

农村10kV配电线路故障分析及预防措施

本文分析了农村配电线路的故障原因与主要故障类型,包括雷害线路故障,外力破坏线路故障及鸟害故障。同时对农村10kV配电线路故障的常用预防性措施进行了探讨,包括电力技术预防措施,乌害与人为破坏预防措施。     

电气故障检修的一般方法

文章简单介绍工业机械发生故障后,通过问、看、听、摸来了解故障发生后出现的异常现象,根据故障现象初步判断故障发生的部位,用逻辑分析法确定并缩小故障范围;对故障范围进行外观检查,用试验法进一步缩小故障范围;用测量法确定故障点;以及修复注意事项.     

浅析虚拟故障训练及其应用

传统的故障训练一般在实物的故障部位进行,在实物设置故障存在费时、费力、易损坏器件、能设置的故障少、限制条件多等难题。虚拟故障训练有效地解决了故障训练的诸多难题。     

论汽车电控发动机常见故障排除与维修

对汽车电控发动机故障原因的分析和寻找需要较高的技术水平,尤其是油、气路故障,因为油、气路故障是电喷发动机故障自诊断系统所难以诊断的,同时,在电控发动机故障中也是故障率相对较高的。将针对电喷发动机各种油路、气路故障展开讨论,提出相关故障排除及相应维修建议。     

船舶轮机设备故障的排除思路

船舶轮机设备的故障类型较多,一旦出现问题,需要及时定位故障位置,针对性地进行故障排除,分析故障发生的原因,让船舶轮机尽快恢复到正常的工作状态之中,尽量减少故障带来的不良影响.本文主要论述的是船舶轮机设备故障发生的原因和表现形式,以及故障的思路探析与排除方法.     

浅谈如何排除电气故障

工业机械发生故障后,通过问、看、听、摸来了解故障发生后出现的异常现象,根据故障现象初步判断故障发生的部位,对故障范围进行外观检查,用试验法进一步缩小故障范围;用测量法确定故障点;以及修复注意事项。     

配电线路单相接地故障点查找策略

10KV配电线路故障中最为突出的是单相接地故障，且故障点的查找也非常困难，本文通过对单相接地故障分析，指出单相故障对电网的危害，提出故障的查找方法和防范措施，并提出如何通过新技术、新设备的应用来提高单相接地故障的查找效率，提高供电可靠性，减少故障损失。     

The establishment of injury surveillance in Thailand

The Provincial Injury Surveillance System was initiated in Thailand in 1993 to establish a database for assessment of the quality of acute care and referral services provided to the injured at the provincial level, and to facilitate injury prevention and control at both local and national levels. An injury surveillance system model that adopted a trauma registry as the record form, was established in five selected large hospitals, one from Bangkok and four from major regions of Thailand. Data analysis was undertaken and utilized at both local and national levels. The Epidemiology Division of the Ministry of Public Health supervised and assessed the data quality. Evaluators from the School of Public Health identified problems in operating the system at the provincial level and assessed the feasibility of expanding the project. The data of 66,895 injuries including 1,755 deaths reported in 1995; revealed fundamental problems in the emergency medical services. Causes of major injuries were identified and their epidemiology described. The coverage of reporting was over 90%. The completeness and reliability of recording ranged from 80.6–100%. This model of sentinel surveillance is appropriate for injury problems, which are of large magnitude and are at the early phase of problem solving. Development of the information systems administration and human resource in computer technology are necessary to cope with the problems of increased workload in data collecting and processing. This model of surveillance is feasible for expansion but its data system has to be appropriately integrated into the existing systems of the hospitals.     

巩固江苏外贸强省地位,探讨外贸发展新趋势

在面对人民币持续升值和利率调整,发达国家和地区的经济增长速度有所下降,外贸税收政策的调整的新形势下,江苏省要保持住外贸强省地位,政府部门必须采取积极措施,迅速把握国际市场供求信息,优化出口结构,加强对出口商品价格、数量的动态监测,引导企业增强综合竞争力,提高出口的质量和效益;增加能源、资源类产品进口,以抵消人民币汇率和利率变动对企业生产的不利影响,不断提高企业应对贸易摩擦的能力,进而达到江苏对外贸易持续健康发展的目的。     

管理者过度自信研究最新进展

行为经济学家和心理学家将认知心理学的理论及研究范式引入到企业财务经济学研究领域,提出了管理者过度自信的命题,并围绕这一命题从理论与实证角度展开了大量富有成效的研究。本文从管理者过度自信的内涵、影响因素及其度量三个角度对国内外学者的相关成果进行了梳理①,在评析现有研究成果的基础上,对该领域未来的研究方向进行了展望。     

电子商务中的诚信缺失及对策

目前,我国电子商务遭遇到一系列的道德问题,而诚信是调节我国电子商务活动的主要道德向量。因此,加强诚信建设是促进我国电子商务健康发展的重要途径。文章重点分析了加强诚信建设的重要性,指出了电子商务中诚信缺失的原因以及如何加强诚信的宣传、教育和普及,努力营造出一个诚实可信的社会文化环境。     

Striking a Balance Between Rules and Principles-based Approaches for Effective Governance: A Risks-based Approach

Several recent studies and initiatives have emphasized the importance of a strong ethical organizational DNA (ODNA) to create and promote an effective corporate governance culture of trust, integrity and intellectual honesty. This paper highlights the drawbacks of an excessively heavy reliance on rules-based approaches that increase the cost of doing business, overshadow essential elements of good corporate governance, create a culture of dependency, and can result in legal absolutism. The paper makes the case that the way forward for effective corporate governance is to strike an optimal balance between rules-based and principles-based approaches. The recent corporate scandals have demonstrated that the ethical ODNA is critical to the driving force and basis of legal and regulatory requirements. Effective governance means adhering to ethical principles, not merely complying with rules, and is a crucial guardian of a firm’s reputation and integrity. It is through an effective corporate governance program (that is, one that optimally captures and integrates the appropriate aspects of rules-based and principles-based approaches, and identifies and assesses the related risks) that an organization can reconfigure its ODNA for improved performance. Focusing on the ethical ODNA as the basis of new governance measures provides an opportunity to develop a competitive advantage as it represents a potential source of differentiation, strengthens the relationship with all stakeholders of the organization by building a culture of trust and integrity, and re-instills investor confidence. This paper employs dialectical reasoning that links the ODNA through principles-driven rules in developing a risks-based approach. A comparison from a risk assessment perspective between rules-based and principles-based approaches is presented. Although there have been few applications employing dialectical reasoning in business research, this methodology can be extremely useful in isolating ethical issues and integrating them into the business process. The risks-based approach captures the benefits of both rules-based and principles-based approaches, and incorporates trust-based principles such␣as solidarity, subsidiarity and covenantal relationships.Sundera Arjoon is a Senior Lecturer in Ethics at the Department of Management Studies, The University of the West Indies, Trinidad, He has served as Head of Department (2002–2005) and as Deputy Dean of the Faculty of Social Sciences (1996–2002). His publications have appeared in the Journal of Business Ethics, Journal of Markets and Morality, Global Development Studies, Social and Economic Studies, Applied Financial Economics, and the Journal of Eastern Carribean Studies. His current teaching and research interests include ethical decision-making, corporate governance, virtue ethics and familial ethics.     

上市公司盈利预测信息自愿披露悖论:提出与解读

本文提出了一个关于上市公司盈利预测信息自愿性披露的悖论。该悖论的发现和解读表明,上市公司自愿披露盈利预测信息对减少信息不对称、增加财务信息的有用性具有重要意义。同时,自愿披露盈利预测信息对改善与投资者关系、降低上市公司的融资成本有着正面效应。然而,披露成本的存在使得公司管理层不得不在自愿披露的收益与成本之间反复斟酌,并且盈利预测信息的供求结构、资本市场的竞争强度以及经理人市场发展水平等对上市公司披露盈利预测信息的意愿程度也会产生重要影响。     

中欧贸易互补性研究——基于比较优势理论和产业内贸易理论的实证分析

自中欧建交以来,双边贸易取得了快速进展。经过2004年东扩的欧盟已经成为我国最大的贸易伙伴,同时我国也成为了欧盟的第二大贸易伙伴,不断扩大的双边贸易从一个侧面反映了中欧贸易的互补性。本文利用近十几年的贸易统计数据,分别以比较优势理论和产业内贸易理论为依据对中欧贸易的互补性进行了实证分析,从而得出了以下结论:中欧双边贸易存在较强的互补关系,中欧之间的国际分工主要以产业间的垂直分工为主,同时随着我国工业制成品国际竞争力的迅速提高,产业内贸易在中欧双边贸易中的重要性正在不断增强,中欧之间的国际分工正逐步向水平方向发展。     

Symbolic consumption,signification and the ‘lockout’ of electric cars, 1885–1914

The paper analyses the sources of meanings attached to consumption of the early automobile to inform analysis of the lockout of electric automobiles in the UK, mindful of related developments in France, and the USA. Data are gathered from archive sources, and include social and technical histories and popular newspapers and magazines from the period investigated (1885–1914). The paper asserts that the association of the early car with specific and particular cultural meanings, as defined by class and gender, led to it becoming an untenable choice for early consumers contributing to the ‘lockout’ of the electric car before it had a chance to establish itself as a viable socio-technical system. The conclusion highlights the limitations of an analytical focus privileging technical accounts of lockout and identifies the contribution of the concepts of symbolic consumption and signification.     

2011年仓储业发展回顾与2012年展望

2011年,国务院办公厅下发《关于促进物流业健康发展政策措施的意见》,其中多处涉及仓储业,对我国仓储业发展产生了重要影响。根据中国物资储运协会对60个大型会员单位的统计,2011年样本仓储企业生产经营状况基本良好,但也存在一些不稳定因素。城市驱赶仓库的速度加快,集约节约使用土地与仓储业大量用地的矛盾更加突出,物流园区建设热情高涨,国际物流地产商积极转变经营方式,经营规模不断扩大,仓储物流中心成为竞争焦点之一。仓储企业下半年业务量下降幅度较大,货物周转次数减少,仓储业务利润主要来源于增值服务,业务构成与收入构成发生重大变化,铁路运输业务收入大幅增长,电子商务物流、电视购物物流对仓储的需求增长,金融物流业务依然高速增长。2012年,仓储与运输配送企业融合趋势将进一步加强,物流中心与物流园区的布局将调整和规范,仓储业将进入高技术时代,商贸与物流融合趋势将进一步加强,仓储物流与制造业联动趋势将进一步加强,公共物流区和租地建库模式将被重视。     

A commentary on “The role of actors in combining resources into complex solutions”

This commentary essay summarises and explicates two important observation made by Cantù, Corsaro and Snehota in this special issue and discusses the implications for the future study of managing resource interaction in inter-organisational networks. First, consider the importance of the recognition of the duality of actors’ roles; as providers and users of resources in a combining and recombining systems of change and innovation. Second, the recognition of multiple points of value creation that emerges within the network during the process of combining and integrating resources to create customer solutions.