Analysis of reliability characteristics in the acceptance sampling tests

Until now, various acceptance reliability sampling plans have been developed based on different life tests of items. However, the statistical effect of the acceptance sampling tests on the reliability characteristic of the lots accepted in the test has not been appropriately addressed. In this paper, we deal with an acceptance reliability sampling plan under a ‘general framework’ and discuss the corresponding statistical effect of the acceptance sampling tests. The lifetime of the population before the acceptance test and that of population ‘conditional on the acceptance’ in the sampling test are stochastically compared. The improvement of reliability characteristics of the population conditional on the acceptance in the sampling test is precisely analyzed.     

Extension and the disposal of the world: Double‐crossing systems,culture, self and language

Long indexed by sociological ideas of structure, the notion of extension is yet disparate and poorly disseminated – as evidenced by popular motifs such as ‘the world is at our disposal’ eschewing notions of emplacement and embeddedness and instead championing choice and individualised agency. On the assumption that this lacunae relates in part to paradigm debates over incommensurability, the proposal in this inaugural lecture is to explore double‐crossing as a methodological device by which to draw insights on extension from major ‘gatherings’ of Euro‐American thought, while respecting the orderings, institutional arrangements, situations and networks each approach imposes. In retracing the ‘disposal’ of the world through four theoretical perspectives germane to sociology – namely systems, culture, self and language – the objective is to illustrate the methodology of double crossing. Drawing on both my work on social and cultural theory and my field studies in market leaders, I first show how moving back and forth between the older and newer ground within each perspective helps to elicit what gets unsighted from either view. Secondly, inasmuch as the usual way of ‘making a clearing’ is argued as caught ‘in reaction’ from extant theory (ending up say talking of parts instead of wholes or consumption in place of production), I advance the methodology of double‐crossing by excavating the recessive arrangements and ordering implicit in each perspective and so illuminate the different ways extension is affected by how world is imagined and experienced.     

On the Characterization of Copulas by Differential Equations

We study the semigroup action induced by univariate conditioning of copulas. Based on this, we give a new characterization of bivariate copulas in terms of flows generated by solutions of ordinary differential equations with not necessary continuous right side. Several applications, related to concordance ordering of copulas, illustrate the usefulness of this result.     

Sticky Landscapes and Smooth Experiences: The Biopower of Tourism Mobilities in the Öresund Region

As landscapes become ordered according to certain sets of economic, political, ecological or social practices and discourses, other possible orderings become limited in their potential. This article illustrates this with an example taken from the field of tourism and place marketing. The empirical focus is golf experiences in Scania, Sweden, bookable by individual consumers over the Internet. The ordering of what is termed the ‘golfscape’ is unfolded with the help of an assemblage of arguments taken from writings on mobility, biopower and subjectification, post‐foundational views of the materiality of the social and recent conceptualisations of the socio‐cultural and spatial impact of tourism. The booking sequence, i.e. the interaction between consumer and booking software, is analyzed as a series of negotiations, techniques and technologies of control and enactments of power. It is concluded that mobility studies can benefit from a Foucauldian power perspective when explaining practices of mobility and spatial fixation.     

Generating Ordered Families of Lorenz Curves by Strongly Unimodal Distributions

From any strongly unimodal density on the real line, it is possible to generate a one-parameter family of Lorenz curves. The resulting families of Lorenz curves are Lorenz ordered with respect to the indexing parameter. Symmetry of the unimodal density results in the generation of symmetric Lorenz curves. A related characterization of the normal distribution is presented.     

基于EOQ的集成供应成本分摊问题研究

第三方物流的集成供应是降低供应链成本的有效途径,而集成供应成本在各供应商企业之间的分摊是需要解决的核心问题.本文详细阐述了第三方物流的集成供应问题,基于合作博弈理论建立了第三方物流集成供应的成本分摊模型.在采用夏普利值法对该模型进行求解的过程中,针对夏普利值法难以赋值的问题,引入集成供应的经济订货批量模型,有效解决了了第三方物流供应成本分摊问题.最后,用算例对该方法进行了说明.     

A graphical method for comparing trends in series of events

This paper describes a new graphical method for comparing trends in two or more series of events. The method is applicable,e.g., to observations such as the successive times to failure of two or more devices and the arrival times on succeeding days at a service facility. The graphs provide information about the rela-tive trend and can be used to order several series with respect to rates of occurrence of events. The series are assumed independent of one another and are assumed to follow nonhomogeneous Poisson processes with mean functions and rate functions unspeci-fied.     

C434. Local bounds on power of T2 in scale families

In this paper, we have developed a likelihood ratio factorization technique for variable selection for multiple observations model. The asymptotic distribution of the selection criterion is also given. This technique has been applied to a marketing data set for illustration of the technique developed.     

Order preserving property of moment estimators

Balakrishnan and Mi (2001) considered order preserving property of maximum likelihood estimators. In this paper there are given conditions under which the moment estimators have the property of preserving stochastic orders. The preserving property for the usual stochastic order as well as for likelihood ratio one is considered. Sufficient conditions are established for some parametric families of distributions.     

A note on estimation of the shape of density level sets of star-shaped distributions

Elliptically contoured distributions generalize the multivariate normal distributions in such a way that the density generators need not be exponential. However, as the name suggests, elliptically contoured distributions remain to be restricted in that the proportional density level sets ought to be ellipsoids. In star-shaped distributions, this restriction is relaxed and the density level sets are allowed to be boundaries of arbitrary proportional star-shaped sets. In this note, we propose a non parametric estimator of the shape of density level sets of star-shaped distributions, and prove its strong consistency with respect to the Hausdorff distance. We illustrate our estimator with simulated and real data.