The Effect of Downsizing on Hierarchical Work Flow Dynamics in Organizations

The objective was to determine the impact of the downsizing of management personnel on the flow of work throughout the organization, given that the quantity of workers (or technicians) must remain the same. In particular the objective of study was to assess the impact of downsizing on performance dynamics, where social factors such as power objectives of the management groups, job insecurity, and perceptions of fairness were not active variables in the process. Three groups of university students (19-33 in a group) were formed to play the Chaos Exercise in a three-level hierarchy. In the three experimental conditions, management groups were downsized during the game from 3 to 2 players, from 2 players to 1, or from 3 players to 1. Nonlinear dynamical structures were explored for each condition and at all three levels of hierarchy using production records generated by each group. Results showed chaos for two out of three conditions at the lowest level of the hierarchy, and usually a tendency toward asymptotic stabilization in middle management, although the functions themselves were markedly varied. The 2-to-1 condition, however, showed a tendency toward performance stabilization at the worker and middle management levels, but chaos at the top management level.     

Relativistic Burgers and nonlinear SchrÖdinger equations

We construct relativistic complex Burgers-Schrödinger and nonlinear Schrödinger equations. In the nonrelativistic limit, they reduce to the standard Burgers and nonlinear Schrödinger equations and are integrable through all orders of relativistic corrections.     

用层次分析法对学生进行综合评价

学生的综合评价工作是学校的重要工作内容.如何从思想、学习、生活等各个方面对其进行综合考察,并使之科学化、合理化,是各个院校学生工作一直探索的问题.采用能给定量描述的决策问题带来极大方便的层次分析法(Analytic Hierarchy Process),把学生评价体系归结为5个准则27个指标,通过计算各级判断矩阵,得到了各个指标的权重,并把最终的计算结果应用到学生评优评三好等多项实际工作中.     

Model equation of the theory of solitons

We consider the hierarchy of integrable (1+2)-dimensional equations related to the Lie algebra of vector fields on the line. We construct solutions in quadratures that contain n arbitrary functions of a single argument. A simple equation for the generating function of the hierarchy, which determines the dynamics in negative times and finds applications to second-order spectral problems, is of main interest. Considering its polynomial solutions under the condition that the corresponding potential is regular allows developing a rather general theory of integrable (1+1)-dimensional equations. __________ Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 153, No. 1, pp. 29–45, October, 2007.     

基于灰色统计模型的试题内容效度测量方法研究

首先从内容效度的构成要素以及影响内容效度的诸要素入手,从一般的角度上,构建了试题内容效度的测量指标,然后运用灰色统计方法将专家的主观评估结果进行综合,得到了试题内容效度数量化的评价结论.最后以实例说明其应用.     

一个新的m×m矩阵Kaup-Newell谱问题及其相应的可积分解

A new m × m matrix Kaup-Newell spectral problem is constructed from a normal 2 × 2 matrix Kaup-Newell spectral problem, a new integrable decomposition of the Kaup-Newell equation is presented. Through this process, we find the structure of the r-matrix is interesting.     

基于层次分析法的岗位工资确定方法研究

岗位工资是确定薪酬的核心部分,只有通过对岗位责任的大小和相对重要性进行判断,才能制定相应的岗位工资.但很多企业在岗位工资的定位上往往存在一定程度的不公平性.以JML公司为例,针对其岗位工资确定方法中存在的问题,引入层次分析法,并结合该公司的四个岗位详细介绍了运用层次分析法来确定岗位工资的步骤,说明了层次分析法在岗位工资确定中的应用及其可行性.提出了可操作的确定岗位工资的流程图,以解决以往岗位工资差距太小导致员工丧失积极性的问题.     

基于交叉效率DEA和熵IAHP对物流企业绩效评价

本文在研究了现有文献对物流企业绩效评价的基础上,基于超效率DEA用以计算效率值的权值只在对被评价单元最有利的特定范围内取值、忽视绩效评价的公平性和IAHP方法主观判断性较大的缺陷,提出了交叉效率DEA和熵IAHP方法。交叉效率DEA的中心思想是采用互评体系,弥补了超效率DEA方法只是选择对被评价决策单元最有效的权重忽视公平性的缺陷。熵IAHP方法是客观确定权重的熵权法和体现决策者偏好的IAHP方法的结合,这有效地解决了IAHP方法确定指标权重时主观性过大的缺陷。笔者给出了交叉效率DEA和熵IAHP模型评价物流企业绩效的基本步骤,最后通过一个实例验证了此方法的有效性和优越性。     

Estimating the tensile strength of super hard brittle materials using truncated spheroidal specimens

New approaches need to be introduced to measure the tensile capacity of super hard materials since the standard methods are not effective. To pursue this objective, a series of laboratory tests were constructed to replicate the fracture mechanism of diamond-based materials. Experiments indicate that under a certain compressive test condition, stresses normal to the axisymmetric line in truncated spheroidal specimens (bullet-shaped specimens) are in tension contributing to the tensile fracture of the material. From experimental and numerical studies, it is concluded that semi-prolate spheroidal specimens can be used to determine precisely the tensile strength of brittle stiff diamond-like composites.     

Addition Formulae of Discrete KP,q-KP and Two-Component BKP Systems

In this paper,we construct the addition formulae for several integrable hierarchies,including the discrete KP,the q-deformed KP,the two-component BKP and the D type Drinfeld–Sokolov hierarchies.With the help of the Hirota bilinear equations and τ functions of different kinds of KP hierarchies,we prove that these addition formulae are equivalent to these hierarchies.These studies show that the addition formula in the research of the integrable systems has good universality.