用于分散电压控制的规则库法

电力系统正常运行时,无功/电压控制目的是安全经济供电.而在紧急情况下,首要目标是运行的安全性,其次才是经济性.本文提出的局部网概念及其灵敏度矩阵,以及对电压违限严重性的分级和控制战略,使控制更为快速有效.此法更适用于当事故引起全系统运行数据不全时对局部网的电压控制.     

不平等的再生产：从社会经济地位到健康不平等--基于CFPS2010的实证分析

本文利用2010年中国家庭追踪调查（ CFPS ）数据，探索性分析了社会经济地位影响健康不平等的两个中介机制－－健康预防机制和健康恢复机制。研究结果表明，健康预防机制中，社会经济地位影响生活方式，进而影响自评健康水平的假设得到部分验证，其中营养水平的中介效应得到验证；健康恢复机制中，社会经济地位影响医疗保健能力，进而影响自评健康水平的假设得到部分验证，其中医疗保健支付能力的中介效应得到证明。最后，分析发现，＂看病贵＂比＂看病难＂更能影响民众的健康状况。     

致用与会通——薛凤祚水利思想蠡测

薛凤祚治学方法的特点,即＂致用＂与＂会通＂。其中,会通包含古今的会通与中西的会通。由《两河清汇》解读薛凤祚的水利思想,比较突出的是其治河和海运的思想。《两河清汇》从体例上言,可谓＂编述之体＂,薛凤祚不仅继承发扬了儒家圣贤的一些学说,也吸收了其前代潘季驯、邱濬等人的观点。观其采择去取,无不以＂致用＂为宗。而其热心译介当时西方的水利器械,可以看作他在中西会通中所作的努力。虽然如此,对于薛凤祚《两河清汇》及其水利思想不可刻意拔高。     

关系类型对服务失败后顾客反应的影响

本文探讨了真正服务关系、虚假服务关系和偶遇服务关系三种关系类型对服务失败后顾客反应的影响。研究显示,在遭遇服务失败后三种关系类型的反应差异明显,具有真正服务关系的顾客在服务失败后比其它两类关系类型的顾客具有更高的顾客满意度、更少的负面口碑以及更高的重购倾向,而虚假关系的顾客比偶遇关系的顾客又表现出较高的满意度、较少的负面口碑以及较高的重购倾向。所以关系能够提供防御性服务补救作用,而且相对于其它补救策略更显得未雨绸缪。     

Robustness evaluation of multisite distributed schedule with perturbed virtual jobshops

A method for evaluating the robustness of medium term multisite distributed schedule is presented. The method of robustness evaluation is based on steps and tools associated with the conceptual model of a MultiSite Reactive Production Activity Control (MSR-PAC). The MSR-PAC makes it possible to study the sensitivity of the scheduled plans in presence of perturbations. These must be evaluated before being dispatched to the shop-floors. At present, to the best of the authors' knowledge, there is no means to make this evaluation in the distributed systems such as extended enterprise. The monitoring of errors is based on the discrepancy between the two flow-shape functions that model respectively the dynamics of the scheduled manufacturing orders and the state of the perturbed production. The MSR-PAC is based on a multisite agent system and on the monitoring of the perturbed virtual jobshops. The method can also be used for controlling short term distributed production activities.     

A Mathematical Model of Service Failure and Recovery Strategies*

Understanding the nature of service failures and their impact on customer responses and designing cost‐effective recovery strategies have been recognized as important issues by both service researchers and practitioners. We first propose a conceptual framework of service failure and recovery strategies. We then transform it into a mathematical model to assist managers in deciding on appropriate resource allocations for outcome and process recovery strategies based on customer risk profiles and the firm's cost structures. Based on this mathematical model we derive optimal recovery strategies, conduct sensitivity analyses of the optimal solutions for different model parameters, and illustrate them through numerical examples. We conclude with a discussion of managerial implications and directions for future research.     

A reactive tabu search algorithm for the vehicle routing problem with simultaneous pickups and deliveries

The vehicle routing problem with pickups and deliveries (VRPPD) extends the vehicle routing problem (VRP) by allowing customers to both send and receive goods. The main difficulty of the problem is that the load of vehicles is fluctuating rather than decreasing as in the VRP. We design a reactive tabu search metaheuristic that can check feasibility of proposed moves quickly and reacts to repetitions to guide the search. Several new best solutions are found for benchmark problems.     

Associations between overtime and psychological health in high and low reward jobs

This study focused on the relationship between overtime and psychological health in high and low reward jobs, and in jobs with high and low external pressure to work overtime. Data were collected for 535 full-time employees of the Dutch Postal Service. In general, overtime was associated with negative work-home interference and negative home-work interference. Split-sample logistic regression analyses showed that employees reporting low rewards had elevated risks of burnout, negative work-home interference and slow recovery. In addition, the combination of overtime and low rewards was associated with negative home-work interference. A second analysis was conducted separately for employees who reported overtime in order to study the effects of external pressure to work overtime. In this subgroup, low rewards were associated with elevated risks of health complaints, emotional exhaustion and negative home-work interference. Moreover, employees who reported overtime and a high pressure to work overtime in combination with low rewards had elevated risks of poor recovery, cynicism, and negative work-home interference. The results suggest that even a limited number of hours of involuntary overtime is associated with adverse mental health, but only in low reward situations.     

面向顾客投诉：服务补救和组织学习

本文结合国内外先进企业在售后服务上的经验,提出了面向顾客投诉的有效补救措施,并且指出,企业可以通过顾客投诉的数据资料,结合其它信息,促进企业内各个层面的不断改进,从而实现有效的组织学习。     

The recovery paradox: Portraying the complex interplay between job stressors,lack of recovery,and poor well-being

Job stressors such as time pressure, organizational constraints, and interpersonal conflicts matter for individual well-being within organizations, both at the day level and over longer periods of time. Recovery-enhancing processes such as psychological detachment from work during nonwork time, physical exercise, and sleep have the potential to protect well-being. Although the experience of job stressors calls for effective recovery processes, empirical research shows that recovery processes actually are impaired when job stressors are high (recovery paradox). This article presents explanations for the recovery paradox, discusses moderating factors, and suggests avenues for future research.