Anticipated IT infrastructure and supply chain integration capabilities for RFID and their associated deployment outcomes

This study looks at the perceived ability of components of IT infrastructure integration and supply chain process integration to predict specific radio frequency identification (RFID) system deployment outcomes—exploration, exploitation, operational efficiency, and market knowledge creation. Data for this pilot research study was collected using a survey questionnaire administered online to members of the Council of Supply Chain Management Professionals (CSCMP). It was hypothesized that data consistency and cross-functional application integration, both elements constituting IT infrastructure integration, and information flow integration, physical flow integration, and financial flow integration, all elements constituting supply chain process integration would be positively associated with and predict the four RFID system outcomes. Multiple regression results show partial support for all four proposed hypotheses. Cross-functional application integration and financial flow integration predicted exploration, while data consistency and physical flow integration predicted exploitation. Data consistency and cross-functional application integration, on the other hand, predicted both operational efficiency and market knowledge creation. Supply chain managers planning to deploy RFID systems are alerted to the criticality of these IT infrastructure issues as they brace for a likely widespread implementation of RFID in supply chains they participate in.     

中国农业技术推广管理体制与运行机制对推广行为和绩效影响的实证——基于中国14省42县的数据

基于对中国14省42个水稻科技入户示范县所辖的566位农技人员及其对应指导的4729位农户进行广泛调研的数据,采用因子分析法,以农户为评价主体对农技人员的推广行为和绩效进行综合评价;并采用逐步回归分析方法对影响推广行为和绩效的因素进行实证分析。研究发现:农技员个人特征、管理体制、运行机制中的收入分配、工作安排、考核激励、机构发展等机制对农技员推广行为和推广绩效均有显著影响。     

Knowledge management and ERP: Complementary or contradictory?

This research aims at deepening the understanding of the effects of information systems on supply chain operations, and to find the level and direction of the relationship between Enterprise Resource Planning (ERP) and Knowledge Management (KM) in the context of operational and financial performance. Essentially, this study emphasizes the explanation of the complementary relationship between ERP and KM. Therefore, the mediating effect of KM is also analyzed. Using a survey method, 163 responses are collected from Turkish manufacturing companies which operate in a variety of industries. A structural equation modelling (SEM) is used to test both the reliability and validity of measurement and the structural path model. The results show that ERP has no significantly positive effect on operational performance, but it is a precedent of KM. Moreover, results also show that KM affects operational performance positively and it has a mediating effect for the relationship between ERP and operational performance. Lastly, the path analysis shows that operational performance is positively associated with financial performance.     

Linear differential equation with constant coefficients solved by matrix formulation

By the formulation of matrix function, a system of linear differential equations with constant coefficients can be uniquely solved. The desired solution is simply expressed as the matrix product of two factors: (1) a variable vector, uniquely derived from the given system, can be set aside after it is found; and (2) a constant matrix, directly related to the initial conditions, is computed numerically. The effort of re-computation is very minimal upon the initial conditions changed. For the classical Laplace transformation, the solution of the differential equation must be recalculated from the very beginning whenever the initial conditions are altered.A typical numerical example is provided in detail to show the merit of the approaches presented.     

泛正定矩阵的Kronecker积的性质

本文结合矩阵的Kronecker积,得到了泛正定矩阵的一类等价条件．     

教育治理体系中“管”与“评”的运行机制研究

建立教育治理体系的根本问题是实现教育的"管办评"分离,而"管办评"分离的核心在于明确"管""办""评"的职能,处理好"管"与"评"的关系。文章在介绍了国内外教育评估中"管办评"分离现状的基础上,分析了实现"管"与"评"分离的困难;根据协商治理理论探讨了"管"与"评"体系在运行中的机制。同时,根据在上海市高水平地方高校试点建设中期评估工作介绍了落实"管"与"评"独立运行的具体做法,并对其路径进行了研究探讨。     

电路混合变量方程的降价分析法

采用混合变量分析法建立电路方程，解决了无伴电源的问题，但也增加了方程的阶数。为此，本文通过矩阵行列大的变换以及分块处理的方法，降低了方程的阶数，并对此作了解答，进而求出了全部变量     

关于复矩阵乘积的特征值的两点注记

本文给出了两个复矩阵乘积的特征值的取值范围．从而推广了文[1]的一个主要结果．此外，指出了文[2]中的一个错误，给出了一个不等式．     

广义对角占优矩阵的若干基本性质

讨论广义(非严格)对角占优矩阵的基本性质,并举例说明广义严格对角占优矩阵的诸多性质对广义(非严格)对角占优矩阵不再成立.     

运算放大器的失调补偿

结合实践对运算放大器采用几种方便、有效的失调补偿，从而减小失调电压Uos和失调电流Ios对运算放大器性能的影响，以提高其放大性能和准确性．