多目标攻击的基本概念及关键技术

简要地介绍空对空多目标探测、跟踪和攻击的基本概念及组成多目标攻击武器系统的雷达、火控和导弹应具备的基本功能和关键技术。     

大型军用电子系统的维修性设计

维修性设计是大型军用电子系统研制过程中的重要组成部分,介绍了维修性的基本概念和重要意义,详细论述了在开展维修性设计过程中,应主要关注的各项工作和要求,同时提出了提高军用电子系统维修性的各项技术措施。     

联合火力打击协同式指挥控制模式及其军事概念建模

基于平台中心战和网络中心战思想,简要分析了联合火力打击两种指挥控制模式的优缺点;结合作战任务简要构想,以平台中心战为基础,借鉴网络中心战的思想提出了联合火力打击的协同式指挥控制模式,并分析了其特点;利用IDEF0建立了联合火力打击协同式指挥控制的军事概念模型。     

RTD多值逻辑(MVL)电路

RTD具有双稳和自锁特性,用RTD构成电路可节省大量器件,这一优点在构建多值逻辑电路(MVL RTD)时显得尤为突出。在引用"遏止"概念的基础上介绍了几种典型的MVL RTD电路,包括多幅输入脉冲信号具有选幅功能的文字逻辑门、能提供三个不同电平输出的三态反相器、将一输入斜坡电压信号变成脉冲输出信号的折线量化器等电路;用"遏止"概念分析了异或门电路的工作原理。     

碲镉汞红外探测器的前沿技术综述

红外光电探测器件在军事、民用和科学研究方面具有非常重要的应用。而碲镉汞(HgCdTe)由于自身的诸多优点在红外光电探测器的发展中起到了至关重要的作用,至今仍然是重要的战略战术应用中首选的材料体系。首先分析了针对新一代红外探测器所提出的SWaP3(Size,Weight,and Power,Performance and Price)概念,然后简略介绍了第三代红外焦平面研究背景下HgCdTe薄膜的衬底水平与材料生长情况,最后总结了大规模阵列器件、甚长波红外器件、高工作温度(High Operating Temperature,HOT)器件、超光谱探测器件、双色器件以及雪崩光电器件等前沿技术方面的研究进展。     

以新发展理念引领高校专业基础课教学改革

以“创新、协调、绿色、开放、共享”为内核的新发展理念，是对马克思主义发展理念的继承和发扬，极具时代精神，富含问题意识，为高校思想政治教育发展、教育教学改革实践提供了强大的理论支撑。本文以“通信原理”为例，阐述了新发展理念在课程改革中的思路和方法，实现了思想政治教育与专业基础课程有机融合，为深化高校教学改革、创新人才培养模式提供了思路。     

基于逻辑合取的语言真值概念格合并算法

针对人工智能领域中有关不确定性自然语言的研究,将格值逻辑引入概念格,提出了自然语言转换为语言真值的方法,并基于语言真值格蕴涵代数建立了语言真值概念格.通过对各语言真值形式背景及形式概念间关系的分析,演示了由多个语言真值概念格的合并而构造完整概念格的具体过程,进而给出了语言真值概念格基于逻辑合取的合并定理与算法.实验表明,与Bordat算法相比,当属性个数增多时,适当的合并算法能够使其时间复杂度呈指数型降低.     

Automated parallel investigations/optimizations of the reversible addition‐fragmentation chain transfer polymerization of methyl methacrylate

Poly(methyl methacrylate)s were successfully synthesized in a controlled fashion via reversible addition‐fragmentation chain transfer polymerizations utilizing an automated synthesizer. Sixteen polymers were synthesized in a parallel way utilizing the Chemspeed Accelerator? SLT100 to investigate the reproducibility and the control over the polymerizations. The obtained polymers were characterized by gel permeation chromatography (GPC) and automated MALDI TOFMS measurements, thereby proving the reproducibility and controllability of the investigated automated setup. Furthermore, temperature optimization reactions were performed utilizing an individually heatable reactor block. Moreover, to demonstrate the presence of active polymer chains in the reaction mixture, chain extension polymerizations were performed on the automated synthesizer. The results obtained from these chain extension experiments demonstrate the possibility to design well‐defined A‐b‐B block copolymers with different monomers as building units. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 5775–5783, 2004     

Einstein-Ehrenfest's radiation theory and Compton-Debye's kinematics

Einstein and Ehrenfest's radiation theory is modified in order to take into account the effects of the random zero-point fields, characteristic of classical stochastic electrodynamics, in a system of classical molecules interacting with thermal radiation. This is done by replacing the Einstein concept of random spontaneous emission by the concept of stimulated emission by the random zero-point fields. As a result, Compton and Debye's kinematic relations are obtained within the realm of a completely classical theory, that is, without having to consider the wave-particle duality for the molecules or the radiation.     

The Concept of Hard and Soft Acids and Bases as Applied to Multi-Center Chemical Reactions

Many chemical bonds of differing types and strengths have recently been regarded by Pearson^[1] as representing partnerships between (Lewis) acids and (Lewis) bases. Most acceptor molecules or ions (acids) can be placed in one or other of two categories, graphically termed “Hard” and “Soft”. There are also two broad categories of donor molecules or ions (bases) which can also be termed Hard and Soft. On the whole, strong chemical bonds are partnerships between either a Hard base and a Hard acid or a Soft base and Soft acid, whereas weaker bond types most usually result in cases of either Hard base-Soft acid or Soft base-Hard acid interactions. The present paper shows how this concept of acidity and basicity can be applied in the interpretation of multi-center chemical reactions involving interconnected acid-base relationships. In particular, fourcenter substitutions and additions involving cooperative attack by nucleophiles and electrophiles at various chemical bonds have been examined, and a conclusion is reached that especially reactive patterns of reactants can be developed if the substrates contain bonds between either a hard acid and a soft base, or a soft acid and a hard base. Indeed, the arguments can be elaborated to provide two distinct Rules which should be of interest in the interpretation of metal-ion assisted reactions and in the design of novel syntheses.