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数学的实践与认识 2002年第5期32卷 808-812页

作者：杨宏志张宏伟信阳师范学院数学系信阳464000 郑州工程学院数理部郑州450052

本文利用势井理论讨论一类非线性波动方程的初边值问题 .我们构造其稳定集 W和不稳定集 V,证明了当初值属于 W时 ,对 β∈ R整体弱解存在并且利用乘子法得到当 β>0解的指数衰减估计 ;当初值属于 V时 ,而 β<0时。

关键词：阻尼项非线性波动方程稳定集不稳定集初边值问题整体弱解衰减爆破

聚氨酯溶液—环三亚甲基三硝胺(RDX)界面润湿焓的测定

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齐齐哈尔轻工学院学报 1988年第4期 26-30页

作者：松全才魏化震北京工业学院化工系北京工业学院化工系

本文利用Calvet型微量量热计研究了聚氨酯(PU)溶液—环三亚甲基三硝胺(RDX)晶体的润湿焓△Hi。指出PU能溶于四氢呋喃、二氧六环、吡啶和它们之中的任意二元混合溶液中。本实验特意设计了一种玻璃样品池。发现对RDX晶体而言,不同浓度的... 详细信息

本文利用Calvet型微量量热计研究了聚氨酯(PU)溶液—环三亚甲基三硝胺(RDX)晶体的润湿焓△Hi。指出PU能溶于四氢呋喃、二氧六环、吡啶和它们之中的任意二元混合溶液中。本实验特意设计了一种玻璃样品池。发现对RDX晶体而言,不同浓度的聚氨酯溶液,它们的润湿焓(△Hi)值是不同的。PU溶于四氢呋喃中的润湿焓(△Hi)值为最大;而溶于吡啶时则润湿焓(△Hi)值为最小。研究聚合物溶液—RDX晶体的润焓(△Hi)有利于研究RDX晶体的纯化机理。

关键词：润湿焓聚氨酯聚氨酯溶液环三亚甲基三硝胺(RDX)

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醌对卟啉荧光猝灭的溶剂效应

发光学报 1988年第4期 310-316页

作者：冯扬波郭础北京工业学院应用物理系

测定了在室温和未脱氧条件下不同浓度的苯醌(BQ)对卟啉衍生物四苯基卟吩(TPP),四苯基卟吩锌(ZnTPP)激发一重态的猝灭.由猝灭而引起的荧光强度的变化和荧光寿命的变化均可用Stern—Volmer关系式描述.由此根据寿命计算出的猝灭常数均比据... 详细信息

测定了在室温和未脱氧条件下不同浓度的苯醌(BQ)对卟啉衍生物四苯基卟吩(TPP),四苯基卟吩锌(ZnTPP)激发一重态的猝灭.由猝灭而引起的荧光强度的变化和荧光寿命的变化均可用Stern—Volmer关系式描述.由此根据寿命计算出的猝灭常数均比据荧光强度计算出的猝灭常数小.这是由于荧光强度测量中的自吸收效应引起的.实验结果表明;猝灭常数Kq与溶剂极性无关而只与粘度有关.说明这种猝灭是受扩散控制的动态猝灭.动力学分析表明,这是一种强猝灭,电荷转移猝灭速度比卟啉和醌的复合物的分解速度大或与之相近。比较实验结果和我们以前及其他作者发表的结果后,可以得出结论。苯醌对卟啉衍生物激发态电荷转移猝灭的溶剂效应随分子状态的不同而异:分子内的和通过三重态进行的分子间电荷转移猝灭受溶剂极性影响,但通过一重态进行的分子间电荷转移猝灭则与溶剂极性无关。

关键词：电荷转移激发态三重态电荷交换能级多重态猝灭常数 TPP 溶剂极性荧光寿命卟啉衍生物 BQ 复合物分子状态荧光强度溶剂效应效应(化学)

Software Design for Measurement of Bullet Attitude Based on Linear CCD

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Software Design for Measurement of Bullet Attitude Based on ...

非部分嵌套信息结构的LQG动态队决策问题的可解性(Ⅱ)

2007 8th International Conference on Electronic Measurement & Instruments（ICEMI’2007）

作者： Song Weidong 1 Zhao Qinglan 1 Hu dacheng 2 Zhou Bin 3 1.Shijiazhuang Mechanical Engineering College,Shijiazhuang,050003 china (2.1024 Mailbox 4 department in beijing,beijing,102202 3 No.71192 Army,Wendeng,264400

Aimed to the character of high speed of bullet,combined with the principle of linear CCD camera,the software for data acquisition and processing is developed in this article based on the computer programming techniques and image processing *** is introduced integrated design scheme and realization of software for measurement of bullet attitude in Windows by VC++ and MATLAB,which solves the problem that bullet attitude is not measured at *** of experiment for measuring bullet attitude,this system can accomplish the task of measuring bullet’s angle of attack and velocity parameters at real-time.

关键词： Linear CCD flying bullet VC++

来源： cnki会议评论

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控制理论与应用 1989年第3期6卷 21-30页

作者：曾晓军郑应平厦门大学计算机与系统科学系中国科学院自动化研究所

本文讨论非嵌套信息结构的递阶队决策问题和控制均享信息结构的LQG分散控制问题,文中首先证明这两类问题的信息结构都是“部分控制嵌入”的,进而给出最优策略(或控制)存在的充要条件和当此条件成立时最优策略(或控制)的表达式。

关键词：非嵌套信息结构 LQG 动态队决策

MICROSPECTROPHOTOMETRIC MEASUREMENT OF DNA IN DIFFERENTIATED CELLS OF Anabaena azollae STAINED WITH FLUOROCHROME DAPI

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Chinese Science Bulletin 1984年第4期29卷 546-547页

作者：白克智李日新 institute of Botany Academia Sinica Beijing institute of Botany Academia Sinica Beijing Department of BiologyNanjing University.Nanjing.

The fluoroehrome DAPI(4’-6-diamidino-2-phenylindole), possessing binding properties with adenine-thymine-rich DNA of various origins, characterized by its high specificity, sensitivity and simplicity has been used for the in situ studies of both cellular and extra-cellular DNA in various prokaryotie and enkaryotic organisms, but it has not yet been used in blue green algae. This note reports the observations on the variations of DNA in the differentiated cells of Anabaena azollae by means of DAPI staining.

关键词： DAPI DNA Anabaena simplicity differentiated adenine stained algae specificity staining

Temperature Dependence of Magnetic Properties of SmCo/FeCo Multilayer Films

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Journal of Materials Science & technology 2000年第2期16卷 199-200页

作者： Xianghua LIU, Ge YAN, Liya CUI and Shaoxiong ZHOU (National Amorphous & Nanocrystalline Alloy Engineering Research Center, Central Iron & Steel Research institute, Beliing 100081, china) Wu ZHENG, Ailing WANG and Jinchang CHEN (department of Physics, Cap National Amorphous and Nanocrystalline Alloy Engineering Research Center Central Iron and Steel Research Institute Beijing 100081 China department of Physics Capital Normal University Beijing 100037 China

Sm22Co78/Fe65Co35/Sm22Co78/Fe65Co35 multilayer films were prepared by magnetron sputtering. The temperature dependence of coercivity (Hc), remanence (Mr) and reduced remanence (Mr/Ms) has been measured. The coercivity decreases with increasing of temperature. The remanence decreases with increasing the temperature from 26 to 100℃, and then increases with continuously increasing the temperature from 100 to 150℃. The reduced remanence increases with increasing the temperature.

关键词： Co Cr Temperature Dependence of Magnetic Properties of SmCo/FeCo Multilayer Films

TWO　NEW　CONSTRUCTIONS　OF　CARTESIAN　AUTHENTICATION　CODES　FROM　SYMPLECTIC　GEOMETRY

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Applied mathematics(A Journal of Chinese Universities) 1995年第3期10卷 345-356页

作者： GAO YOU AND ZOU ZENGJIA (department of Basic Science, Northeast institute of Electric Power, Jinn 132012). department of Basic Science Northeast Institute of Electric Power Jilin

In this paper, two new constructions of Cartesian authentication codes from symplectic geometry are presented and their size parameters are computed.

关键词： Cartesian authentication code construction symplectic geometry

Adsorption of herbicide triclopyr on homoionic clays

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Journal of Environmental Sciences 1995年第4期7卷 385-390页

作者： Liu Weiping(department of Chemistry , Zhejiang University , Hangzhou 310027 , china)Alba Pusino(Instituto di Chimica Agraria e Forestale , Universita di Reggio Calabria , I-89061 , Italy)Fang Zhuo(institute of Industry ES&T Sceiences, Zhejiang Province , Dept of Chemistry Zhejiang Univ Hangzhou China China

ＡｄｓｏｒｐｔｉｏｎｏｆｈｅｒｂｉｃｉｄｅｔｒｉｃｌｏｐｙｒｏｎｈｏｍｏｉｏｎｉｃｃｌａｙｓＬｉｕＷｅｉｐｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，ＺｈｅｊｉａｎｇＵｎｉｖｅｒｓｉｔｙ，Ｈａｎｇｚｈｏｕ３１... 详细信息

ＡｄｓｏｒｐｔｉｏｎｏｆｈｅｒｂｉｃｉｄｅｔｒｉｃｌｏｐｙｒｏｎｈｏｍｏｉｏｎｉｃｃｌａｙｓＬｉｕＷｅｉｐｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，ＺｈｅｊｉａｎｇＵｎｉｖｅｒｓｉｔｙ，Ｈａｎｇｚｈｏｕ３１００２７，Ｃｈｉｎａ）ＡｌｂａＰｕ...

关键词： adsorption triclopyr interlayer cations montmorillonite hydrogen bond.