网络化空调冷量收费和管理系统的设计

根据现代智能大厦的实际要求，提出了空调冷量收费实现自动化、网络化的必要性，并重点介绍了网络化空调冷量收费和管理系统的设计思路和基本原理。     

对大型用电客户实行合约电价的探讨

根据湖北省电力市场的运营现状，提出对大型用电客户实行合约电价的可行性的探讨及电价改革中需同时解决的问题。     

Stability and linearization: discrete‐time systems

A theorem by Hadamard gives a two‐part condition under which a map from one Banach space to another is a homeomorphism. The theorem, while often very useful, is incomplete in the sense that it does not explicitly specify the family of maps for which the condition is met. Recently, under a typically weak additional assumption on the map, it was shown that Hadamard's condition is met if and only if the map is a homeomorphism with a Lipschitz continuous inverse. Here an application is given concerning the relation between the stability of a discrete‐time non‐linear system and the stability of related linear systems. Copyright © 2002 John Wiley & Sons, Ltd.     

Brockett's stabilization condition under state constraints

A variant of Brockett's necessary condition for feedback stabilization is derived, in the state constrained case.     

ABS/St-co-NPMI二元合金研究

对ＡＢＳ／Ｓｔ－ｃｏ－ＮＰＭＩ二元合金体系的相容性进行了研究,动态力学扭辫分析（ＴＢＡ）、拉伸模量、拉伸强度和维卡耐热实验结果表明,该合金为部分相容体系。当体系内Ｓｔ－ｃｏ－ＮＰＭＩ的含量为１５％（质量）时,两组分相容性最佳,同时,合金的维卡温度比ＡＢＳ提高１０℃,拉伸强度基本相当情况下,拉伸模量明显高于ＡＢＳ。     

济南柴油机厂空调自控系统的新颖设计方案

介绍了济南柴油机厂空调自控系统中数字量直接转变为开关量来控制阀门、风挡的设计方案。这一方案在保持调节性能的前提下大大降低了工程造价。     

关于I．Schur问题的一个推广证明

本文利用微分方法证明了函数单调递增的充要条件为α＜０，单调递减的充要条件为；数列。调递增的充要条件为α≤（２１ｎ３－３１ｎ２）／（２１ｎ２－ｌｎ３），而且单调递减的充要条件为。     

Metallogenic conditions of gold-bearing skarn deposits along the middle-lower reaches of the Yangtze River

The authors discussed the metallogenic conditions of gold-bearing skarn deposits along the middle-lower Yangtze River reaches. Gold was enriched in mantle-originated magmas while copper was enriched in crust-originated magmas. So the enrichment of gold in skarn deposits was decided by the M/C ratios of the intrusive rocks. The distribution of these deposits was controlled not only by the localization of the intrusive rocks which were decided by Mesozoic Era-developed large-scaled and deep-seated faults, but also by the favorable stratigraphic horizons. Synopsis of the first author Zhang Shugen, associate professor, born in 1958, received Ph. D degree in 1993, majoring in ore deposit and geochemistry, has published 44 papers.     

基于湍流猝发的床面泥沙上扬通量

根据湍流猝发平均周期及其空间尺度，构造了可自由冲刷床面泥沙上扬通量的理论模式，该模式较现有的各种经验模式能更准确地描述了扬通量随水沙条件的变化规律，由此可为泥沙数学模型建立具较好力学基础的近底含水量边界条件。     

绝热膨胀与提取天然气液烃的关系

本文阐明了等焓与等熵绝热膨胀致冷原理,并讨论了在两类膨胀原理基础上设计出的各种膨胀致冷元件,在提取天然气液烃中的相互关系及适用场合。