一种叉车前轮轮毂在平板车上的应用

根据对3t叉车前轮轮毂六角支爪处结构设计和尺寸的分析,以及叉车前轮轮毂端面上划钻12-M12×1.25的孔的功用分析等,充分考虑到平板车的车轮为载重轮.通过改变叉车前驱动轮的轮毂的局部尺寸和设计结构,使叉车驱动轮毂也用在了平板车上,且满足平板车的工况需要.应用中保持轮胎、轮辋总成、轮毂螺栓、螺母以及连接螺栓的通用性和互换性不变.     

A general approach to integrated risk management with skewed,fat-tailed risks

Integrated risk management for financial institutions requires an approach for aggregating risk types (market, credit, and operational) whose distributional shapes vary considerably. We construct the joint risk distribution for a typical large, internationally active bank using the method of copulas. This technique allows us to incorporate realistic marginal distributions that capture essential empirical features of these risks such as skewness and fat-tails while allowing for a rich dependence structure. We explore the impact of business mix and inter-risk correlations on total risk. We then compare the copula-based method with several conventional approaches to computing risk.     

Word of mouth activity as information search: A reappraisal

Studies on the diffusion of new products show that word-of-mouth activity WOMA) is an important influencer of consumer acceptance. WOMA has usually been defined primarily as information seeking behavior aimed at risk reduction prior to the purchase decision. To test this hypothesis, data on a new milk additive brand were used from a 1,100 state-wide sample conducted longitudinally. The findings were consistent in rejecting the hypothesis, therefore casting doubt on the exclusive information search nature of WOMA. The main implication is to view WOMA as a multiform communication activity including conversation types other than information search.     

一种汽车尾门VVT标志粘贴装具设计开发

根据对某种轿车尾门VVT粘贴工艺标准的研究,设计开发专用VVT粘贴装具。装具在catia V5软件中设计开发,提取外板件数模,建立正确笛卡尔坐标系,使用工艺标准中相邻侧边定位,在合适位置布置吸磁铁,使装具定位后自动夹紧,装具内侧粘贴一层软膜,避免装具可能划伤车身。装具本体选用镁铝合金材质,保证了装具的刚度、强度及使用一致性要求。     

A Statistical Method for Monitoring a Change in the Rate of Nonacceptable Inpatient Claims

Abstract

This paper is an extension of earlier work (Rosenberg 1998; Rosenberg, Andrews, and Lenk 1999; Rosenberg and Griffith 2000) that introduced a statistical control model to supplement current efforts inexpensively to help reduce unnecessary expenditures. The application of the study was to predict the rate of nonacceptable inpatient claims (NACs). In that work, a statistical model was proposed to link information obtained through an expensive audit with inexpensive information that is readily available to estimate the probability that a claim is a NAC. The premise was that a statistical system can be developed to supplement the expensive audit for additional control between audits.

Estimates of the NAC rate obtained from the statistical model are used as input in a statistical monitor to assess whether the NAC rate had changed over time. The statistical monitor is the subject of this paper. The idea is that subgroups of claims can be analyzed inexpensively with the statistical monitor to determine whether any current intervention is required prior to the time of the next scheduled audit, or whether adjustments are needed in the determination of claims to be sampled for the audit. In this study, the estimate for the NAC rate at t ₀ is compared against the estimate of the NAC rate at some later time t ₁. A decision rule is proposed to assess whether a change in the NAC rate has occurred for that subgroup. The methodology is also applicable to other health care measurements.     

我国中部地区产业结构优化研究——基于旅游业发展的视角

不同的产业结构决定着一个国家或地区经济的内在活力和增长潜力,并最终引起经济以不同的速度和质量增长。中部地区的崛起需要以产业结构的优化作为基础,而旅游业具有典型的产业关联度高、产业波及效应明显的经济特征,可有效助推中部地区实现产业结构的优化。在阐述旅游业发展如何作用于产业结构优化的基础上,实证分析了旅游业发展对中部六省产业结构优化的影响。     

流动注射法(FIA)测定水中氨氮

简要介绍了流动注射法(FIA)测定水中氨氮的实验方法。此方法具有分析速度快、准确度和精密度高、污染少等优点,已用于环境分析测试中酚、氰化物、COD、硒、钍等的测定,减少了对实验室环境的污染和人体的危害,成为现代分析的发展趋势。