采煤机轴承故障与采煤机现场管理思路构架

笔者结合多年工作经验,从采煤机轴承故障分析及其改进措施着手,对采煤机现场管理思路构架做了简单介绍。     

The antecedents of complaint behaviour for Brazilian and French consumers of services

Using a cross‐cultural approach, this study investigates customer satisfaction after a service failure and recovery experience, considering (i) the influence of perceived justice on satisfaction; (ii) the impact of satisfaction on consumer repurchasing and complaint intentions; (iii) the moderating role of the customer cultural orientation; and (iv) the relevance of contextual variables. Based on a survey of 298 consumers from Brazil and France, the results indicated that (i) distributive and interactional justice influenced satisfaction; (ii) satisfaction was a significant predictor of repurchase intentions; (iii) satisfaction influenced third‐party, private and voice responses; and (iv) the level of the customer relationship, the severity of the failure and the responsiveness of the firm were significant contextual variables. Moreover, the individual‐level analysis suggested that only power distance cultural orientation was a significant moderator.     

跨文化交际中的语用失误及其对策——顺应理论

语用失误常常导致跨文化交际失败。Verschueren的顺应理论不仅充分地诠释了语用失误的原因,而且也是解决语用失误问题的最佳策略。在此分别从跨文化交际的三个主要方面,即语言交际、非语言交际和翻译论述了顺应理论的成功应用。     

内部控制理论的研究对象:从行为到关系

组织成员的个体行为所固有的不确定性是内部控制存在于组织机体的根本原因。对于一个由多人集聚而成的组织而言,其持续生存的基本前提就是对动机各异的个体行为实施有效的约束与优化,而内部控制的基本功能就是为建立在个体行为基础之上的组织成员之间的互动关系提供一个共同的结构,因此,组织成员的个体行为以及因之而产生的群体关系理应构成内部控制理论的研究对象。文章将组织成员的行为不确定区分为行为失范与行为失败,将关系基本地分为纵向关系和横向关系,并讨论了上述分类体系对于内部控制理论研究的重要意义。     

Effectiveness of recovery actions on deviant customer behavior—The moderating role of gender

This paper aims to examine how gender interacts with various recovery actions on perceived employee effort, complaint handling satisfaction, and behavioral intention in the case of deviant customer behavior in an East-Asian context. Study 1, a qualitative study, reveals that consumers expect companies to take appropriate remedial actions when a service consumption experience is affected by deviant customer behaviors (e.g., smoking in non designated area). Study 2 employed a 2 (gender) × 6(recovery actions) between subject design in a restaurant setting. Results show that confronting the deviant customer received the highest customer ratings in terms of perceived employee effort, complaint handling satisfaction, and behavioral intention. However, gender moderated the relative effectiveness of recovery actions. Relocating the focal customer was equally good as compensation for women while men were less appreciative of relocation than compensation. In sum, service providers are advised to initiate some form of recovery action in response to deviant customer behaviors.     

银行服务收费的法经济学分析

银行对服务进行收费有其深刻的经济学原因,但对银行服务收费应当进行法律的规制,其法经济学原因在于银行服务收费市场存在市场失灵的现象。针对造成市场失灵的不同原因,应当建立相应的法律制度进行规制。我国对银行服务收费规制的缺陷在于对消费者保护方面的不足。     

Development of a health economic model to evaluate the potential benefits of optimal serum potassium management in patients with heart failure

Abstract

Aims: Patients with heart failure are at increased risk of hyperkalemia, particularly when treated with renin-angiotensin-aldosterone system inhibitor (RAASi) agents. This study developed a model to quantify the potential health and economic value associated with sustained potassium management and optimal RAASi therapy in heart failure patients.

Materials and methods: A patient-level, fixed-time increment stochastic simulation model was designed to characterize the progression of heart failure through New York Heart Association functional classes, and predict associations between serum potassium levels, RAASi use, and consequent long-term outcomes. Following internal and external validation exercises, model analyses sought to quantify the health and economic benefits of optimizing both serum potassium levels and RAASi therapy in heart failure patients. Analyses were conducted using a UK payer perspective, independent of costs and utilities related to pharmacological potassium management.

Results: Validation against multiple datasets demonstrated the predictive capability of the model. Compared to those who discontinued RAASi to manage serum potassium, patients with normokalemia and ongoing RAASi therapy benefited from longer life expectancy (+1.38 years), per-patient quality-adjusted life year gains (+0.53 QALYs), cost savings (£110), and associated net monetary benefit (£10,679 at £20,000 per QALY gained) over a lifetime horizon. The predicted value of sustained potassium management and ongoing RAASi treatment was largely driven by reduced mortality and hospitalization risks associated with optimal RAASi therapy.

Limitations: Several modeling assumptions were made to account for a current paucity of published literature; however, ongoing refinement and validation of the model will ensure its continued accuracy as the clinical landscape of hyperkalemia evolves.

Conclusions: Predictions generated by this novel modeling approach highlight the value of sustained potassium management to avoid hyperkalemia, enable RAASi therapy, and improve long-term health economic outcomes in patients with heart failure.     

浅议汽车怠速不稳故障诊断与维修

现代汽车技术迅猛发展,汽车电子化、智能化趁势越来越明显。特别是桥车的功能和结构越来越复杂,故障的诊断与排除愈来愈依赖高、精、尖的检测仪器与设备。本文主要探讨了汽车怠速不稳故障的诊断与排除方法。