盐城市滩涂资源开发利用程度评价

从开发利用现状、社会、技术、生态视角构建了盐城市滩涂资源开发利用程度评价体系，利用改进后的熵值法计算指标权重，研究发现2009至2016年滩涂资源开发的综合评价指数总体呈上升趋势，其中技术、经济子系统一直处于平稳上升状态，社会评价子系统总体呈上升趋势，仅2012年出现下降，生态环境子系统2009至2011年评价指数下降，2012后呈逐年上升趋势。由此从生态环境建设、开发利用模式等方面提出了提高盐城市滩涂开发利用水平的对策建议。     

Roadmap for a communication maturity index for organizations—Theorizing,analyzing and developing communication value

This study employed a constitutive (CCO) communication approach to advance the dynamic concept of communication maturity for the purpose of theorizing, analyzing, and developing communication value on an organizational level. A literature review resulted in six theoretical areas related to communication maturity: understanding, function, organization, prerequisites, competence and practices including assessments of communication. These were analyzed in a qualitative comparative case study including 85 key stakeholders from eleven organizations. Findings illustrated the relevance of the theoretical areas to stakeholders’ perceptions of their respective organizations’ communication maturity. A first version of a Communication Maturity Index including four levels of maturity; immature, emerging, established, and mature is proposed. Based on the qualitative analysis, organizations’ communication maturity levels varied from emerging to mature. Findings of this study are limited to participating organizations and interviewed stakeholders. The CMI can be further developed in quantitative studies to investigate the constitutive role of communication in organizations and to be used in practice to develop higher levels of communication maturity.     

Comparison of the several parameterized estimators for the positive extreme value index

In the paper we compare several parameterized estimators for the positive extreme value index, which is a very important parameter appearing in the estimation of the probability of rare events. Firstly, asymptotic comparison at optimal levels of the corresponding tail index estimators is performed. Secondly, the practical validation of asymptotic results for moderate finite samples is done by means of Monte-Carlo simulations. We demonstrate that theoretical domination of the positive extreme value index estimators, which are asymptotically normal with a null asymptotic bias, is not reflected in Monte-Carlo simulations. Moreover, the estimators of such type do not demonstrate stability in the sense of empirical mean-squared error.     

A new mixed chain sampling plan based on the process capability index for product acceptance

This article proposes a new mixed chain sampling plan based on the process capability index C_pk, where the quality characteristic of interest follows the normal distribution with unknown mean and variance. The advantages of this proposed mixed sampling plan are also discussed. Tables are constructed to determine the optimal parameters for practical applications. In order to construct the tables, the problem is formulated as a nonlinear programming where the objective function to be minimized is the average sample number and the constraints are related to lot acceptance probabilities at acceptable quality level and limiting quality level under the operating characteristic curve. The practical application of the proposed mixed sampling plan is explained with an illustrative example. Comparison of the proposed sampling plan is also made with other existing sampling plans.     

Local orthogonal polynomial expansion for density estimation

A local orthogonal polynomial expansion (LOrPE) of the empirical density function is proposed as a novel method to estimate the underlying density. The estimate is constructed by matching localised expectation values of orthogonal polynomials to the values observed in the sample. LOrPE is related to several existing methods, and generalises straightforwardly to multivariate settings. By manner of construction, it is similar to local likelihood density estimation (LLDE). In the limit of small bandwidths, LOrPE functions as kernel density estimation (KDE) with high-order (effective) kernels inherently free of boundary bias, a natural consequence of kernel reshaping to accommodate endpoints. Consistency and faster asymptotic convergence rates follow. In the limit of large bandwidths LOrPE is equivalent to orthogonal series density estimation (OSDE) with Legendre polynomials, thereby inheriting its consistency. We compare the performance of LOrPE to KDE, LLDE, and OSDE, in a number of simulation studies. In terms of mean integrated squared error, the results suggest that with a proper balance of the two tuning parameters, bandwidth and degree, LOrPE generally outperforms these competitors when estimating densities with sharply truncated supports.     

基于建筑企业知识创新能力灰色评价

知识创新是企业核心能力形成的关键，正确分析和评价企业的知识创新能力，对于促进企业核心能力形成、提高企业知识管理水平以及增强企业竞争优势，具有重要的实践意义。基于价值链理论，在构建企业知识创新能力综合评价指标体系的基础上，运用层次分析方法和灰色关联理论，建立了基于层次分析法的灰色关联度综合评价模型，利用该模型对企业知识创新能力进行综合评价，使企业了解其知识创新能力现状，为企业制定创新策略提供依据。     

上海产业技术创新指标体系的设计与评价

按照上海产业技术创新指标体系设计的原则与依据，指标体系可设计成4个层次：一是产业技术进步指数，是从顶层反映和评估产业创新状况和趋势的综合性指标。二是一级指标，分别反映和评价创新资源获取、成果运用、成果推广和效益效应等方面。三是二级指标，对4个一级指标的内容进一步细化分解。四是三级指标，对二级指标细化分解到能从有关资料中直接采集得到或只经过简单整理、计算处理的基本指标数据。根据测算结果，上海产业技术进步分别存在着3个优势和3个劣势。可以预测，2015年上海在产业技术创新完整指数与比较指数的比值将为1．25，比2010年提高4个百分点，上海在高端和新兴技术进步领域的优势将进一步扩大。     

Parametric bootstrap process capability index control charts for both mean and dispersion

Abstract

Non-normal processes are common in practice. In this paper, we propose a novel approach to defining bootstrap process capability index (PCI) control charts to monitor the performance of in-control skew normal processes. We use a bootstrap method to calculate phase I control limits of the corresponding PCI control charts. The β-risk curves of the associated PCI control charts will be used to assess the performance of the PCI control charts. We use Monte-Carlo simulation to evaluate the performance of the proposed PCI control charts. A numerical example to illustrate the implementation of the proposed control charts.     

电网公司经营风险综合评价探讨

本文在深入研究电网公司各种经营风险的现状之后,分析了开展风险综合评价所要注意的问题,并针对主要问题提出了相应的解决方法和意见,希望能对电网公司经营风险综合评价的研究和实施提供一点参考,以促使电网公司健康发展。     

中国农村居民纯收入聚类分析

应用聚类分析法对我国1992—2006年农村居民人均纯收入进行研究,聚类结果将我国各地区农村居民人均纯收入划分为7大类,而地理因素、政策因素、产业结构因素和收入来源差异因素是各类别农民收入水平存在差异性的重要原因。