Subset representations and eigenvalues of the universal intertwining matrix

We solve a combinatorial question concerning eigenvalues of the universal intertwining endomorphism of a subset representation.     

偏缠绕模的Frobenius性质

主要给出了偏缠绕模的Frobenius性质，推广了缠绕模相应的性质。     

Limitations of the Clausius‐Mossotti function used in dielectrophoresis and electrical impedance studies of biomacromolecules

Dielectrophoresis (DEP) studies have progressed from the microscopic scale of cells and bacteria, through the mesoscale of virions to the molecular scale of DNA and proteins. The Clausius‐Mossotti function, based on macroscopic electrostatics, is invariably employed in the analyses of all these studies. The limitations of this practice are explored, with the conclusion that it should be abandoned for the DEP study of proteins and modified for native DNA. For macromolecular samples in general, a DEP theory that incorporates molecular‐scale interactions and the influence of permanent dipoles is more appropriate. Experimental ways to test these conclusions are proposed.     

浅析FIPS PUB 140-2标准

论文简单分析了FIPSPUB140-2标准及其在密码模块开发过程中的指导意义,可作为密码模块技术开发人员在进行安全性设计时的参考。     

变频器的组成与常见故障及维修对策

本文介绍了变频器组成结构及相应故障与维修对策。     

国外MCM及其主要制造技术的发展现状

MCM具有胜过PCB、LSI和一般HIC的诸多优点,正在逢勃发展,可望成为九十年代的代表性技术。本文从市场和技术两个方面评述MCM的发展潜力,重点介绍近年来国外MCM主要制造技术的现状及发展态势,试图引起人们对它的关注。     

The Calibrating Theory in the Network Parameters Measurement of Microwave and MMW Devices

The paper introduces a special system calibration technology in s-parameters measurement of microwave and millimeter wave devices. The 8-term errors module is built by analyzing the signals flowing in the measurement system. Then the calibration technology using non-standard kits is designed on the base. Finally, the experiment using the calibration technology is introduced.     

The Hahn–Banach Theorem for Partially Ordered Totally Convex, Positively Convex and Superconvex Modules

The Hahn–Banach Theorem for partially ordered totally convex modules [3] and a necessary and sufficient condition for the existence of an extension of a morphism from a submodule C ₀ of a partially ordered totally convex module C (with the ordered unit ball of the reals as codomain) to C, are proved. Moreover, the categories of partially ordered positively convex and superconvex modules are introduced and for both categories the Hahn–Banach Theorem is proved.     

Banach空间中优化问题的最优性条件

首先在Contingent切锥意义下界定了Banach空间中非空集合的伪切锥和伪凸性的概念，并讨论了相应的性质，然后针对可微优化问题，在广义凸性假设下，建立了最优性条件。     

Si基膜片型气敏传感器微结构单元的热学性能

微结构气敏传感器由于其微型化、低功耗、易阵列化和易批量生产等优点而受到国内外研究者的广泛关注。利用微机电系统（MEMS）加工技术，制备Si基膜片型微结构单元，并分析其热学性能。这种单元工作区温度为-300℃时，加热功率约75mW；并且膜片工作区的热质量很小，温度可以于毫秒量级的时间内，在室温和450℃之间调制。利用这种微结构单元，可以在温度调制方式下，研究气敏薄膜的电学特性和敏感机理。