多工序质量检验点设置的经济分析

从经济分析的角度,对多工序质量检验点设置问题进行了全面的经济分析.文中给出了 m 道工序设置检验点与否的费用发生情况,建立了 m 道工序是否设置质量检验点的一般经济分析模型,并给出了实际应用时的计算流程图.     

高校的腐败现象成因及对策思考

列举了当前高校在招生、考试、建设工程、物资采购等领域存在的腐败现象,分析了滋生腐败现象的原因,提出加强监督,加强思想道德和纪律教育,把好选人用人入口关,注重制度建设,创建反腐倡廉"四不"长效机制,落实责任制等对策措施,以加强高校的反腐倡廉工作,确保高校改革发展稳定工作的稳步推进。     

谈我国食品安全法律与监管体系的营造和完善

食品安全涉及多部门、多层面、多环节,是一个复杂的系统工程。从当前来看,应尽快建立健全食品安全法律体系和统一协调、权责明晰的监管体系,以促进我国食品安全水平的全面提高。     

高校纪检监察机构履职状况调查及影响因素探析

基于访谈和问卷调查结果,文章从履职内容与方法手段、履职资源和履职的效果等维度,力图全面细致地刻画高校纪检监察机构的履职状况。借助组织要素和利益相关者两个视角,同时结合访谈结果,确定高校纪检监察机构履职过程的四类影响因素。进而以此分类框架为内在逻辑,从促进性和制约性两个向度展开逐类分析。最终就高校纪检监察机构的履职状况给出总体判断,并将结论与已有的研究进行参互对照,置于实践背景中进行观照,讨论研究的意义与价值。     

对我国行政监察制度现状的思考

行政监察是行政过程中的一个重要环节,它是行政机构制定的行政决策能否有效地予以执行的有力保证.随着社会的飞速发展,社会变得日益复杂,承担社会管理的行政机构的任务也相应地日益复杂.行政活动如果缺少了行政监察这一环节,就很难做到快速行政、有效行政.因此,本文针对我国行政监察制度现状中存在的主要问题,提出完善我国监察制度的一些建议.     

Moment estimators of defect pattern frequencies,allowing for inspection error

Unbiased estimators of the number of individuals in a lot possessing various patterns of types of defects are constructed. Explicit formulas are given for cases of two and three types of defect. Application of the formulas requires knowledge of the probabilities of various kinds of errors in the inspection process.     

The Modified Pulak and Al-Sultan's Model for Determining the Optimum Process Parameters

Economic selection of process parameters has been an important topic in modern statistical process control. The optimum process parameters setting have a major effect on the expected profit/cost per item. There are some concerns on the problem of setting process parameters. Boucher and Jafari (1991 Boucher , T. O. , Jafari , M. A. ( 1991 ). The optimum target value for single filling operations with quality sampling plans . J. Qual. Technol. 23 : 44 – 47 . [CSA] [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) first considered the attribute single sampling plan applied in the selection of process target. Pulak and Al-Sultan (1996 Pulak , M. F. S. , Al-Sultan , K. S. ( 1996 ). The optimum targeting for a single filling operation with rectifying inspection . Omega 24 : 727 – 733 . [CSA] [CROSSREF] [Crossref], [Web of Science ®] , [Google Scholar]) extended Boucher and Jafari's model and presented the rectifying inspection plan for determining the optimum process mean. In this article, we further propose a modified Pulak and Al-Sultan model for determining the optimum process mean and standard deviation under the rectifying inspection plan with the average outgoing quality limit (AOQL) protection. Taguchi's (1986 Taguchi , G. ( 1986 ). Introduction to Quality Engineering . Asian Productivity Organization . [Google Scholar]) symmetric quadratic quality loss function is adopted for evaluating the product quality. By solving the modified model, we can obtain the optimum process parameters with the maximum expected profit per item and the specified quality level can be reached.     

Probability computations for an extension of the geometric distribution

An extension of the stochastic process associated with the geometric distribution is presented. Combinatorial arguments are used to derive probabilities for various events of interest. Probabilities are approximated by evaluating truncated series. Bounds on the errors of approximation are developed. An example is presented and some additional applications are noted.     

Are labour inspections effective when labour regulations vary according to the size of the firm? Evidence from Peru

This article analyses the impact of enforcement of four labour standards (pension system enrolment, minimum wage, maximum weekly working hours and written employment contract) on compliance in Peru, where labour regulations and penalties vary according to firm size. The author uses household survey data to analyse a factor not previously studied – adjustment by firms through downsizing to benefit from lower fines and less stringent regulations. The empirical findings indicate that enforcement efforts have little effect on either the degree of compliance or the size of firms.     

A sampling plan for one-shot systems considering destructive inspection

Abstract

The paper is concerned with an acceptance sampling problem under destructive inspections for one-shot systems. The systems may fail at random times while they are operating (as the systems are considered to be operating when storage begins), and these failures can only be identified by inspection. Thus, n samples are randomly selected from N one-shot systems for periodic destructive inspection. After storage time T, the N systems are replaced if the number of working systems is less than a pre-specified threshold k. The primary purpose of this study is to determine the optimal number of samples n*, extracted from the N for destructive detection and the optimal acceptance number k*, in the sample under the constraint of the system interval availability, to minimize the expected cost rate. Numerical experiments are studied to investigate the effect of the parameters in sampling inspection on the optimal solutions.