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在线试题库系统的设计与实现
随着网络技术的飞速发展,现在很多国外的大学和社会其他部门都已经开设了远程教育,通过计算机网络实现异地教育和培训。当前,计算机硬件技术的发展已经达到了相当高的水平。但是,远程教育软件的开发目前还处于起步阶段,随着这项技术的不断深入发展,就要求有更好、更完善的软件系统应用到远程教育当中去,这就给软件设计人员提出了更高的设计要求。
- 2020-11-27下载
- 积分:1
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Lumped Elements for RF and Microwave Circuits (Bahl 2003)
Lumped Elements for RF and Microwave Circuits英文版,射频微波电路入门Lumped Elements for RFand microwave circuitsFor a listing of recent titles in the Artech House Microwave library,turn to the back of this bookLumped Elements for RFand microwave circuitsInder bahlArtech houseBoston londonwww.artechhouse.comLibrary of Congress Cataloging-in-Publication DataBahl, I.J.Lumped elements for RF and microwave circuits /Inder Bahlp cm.--(Artech House microwave libraryncludes bibliographical references and indexISBN 1-58053-309-4(alk. paper1. Lumped elements(Electronics) 2. Microwave integrated circuits. 3. Radiofrequency integrated circuits. 4. Passive components. I. Title. II. SeriesTK7874.54B342003621.38132-dc212003048102British Library Cataloguing in Publication DataBahl, I. J. Inder jit)Lumped elements for RF and microwave circuits.-(Artech House microwave library1. Radio circuits 2. Microwave circuits I. Title621.38412ISBN1-58053-3094Cover design by Igor Valdmar2003 ARTECH HOUSE, INC.685 Canton StreetNorwood Ma 02062All rights reserved Printed and bound in the United States of America. no part of this bookmay be reproduced or utilized in any form or by any means, electronic or mechanical, includingphotocopying, recording, or by any information storage and retrieval system, without permissionn writing from the publisherall terms mentioned in this book that are known to be trademarks or service marks have beenappropriately capitalized. Artech House cannot attest to the accuracy of this information. Useof a term in this book should not be regarded as affecting the validity of any trademark or servicemarkInternational Standard Book Number: 1-58053-309-4Library of Congress Catalog Card Number: 200304810210987654321To my adorable grandsons, Karan and Rohan Kaushal, with whom I play, cry,and laugh, and who have provided me with the idea and inspiration towrite this bookContentsPrefaceXVAcknowledgmentsXXIntroduction1.1 History of Lumped Elcements)Why Use Lumped Elements for rF andMicrowave circuits1.3 L, C, R Circuit Elements1.4 Basic Design of Lumped Elements4.1 Capacitor1.4.2 Inductor4.3 Resistorumped-Element Modelin1. 6 Fabrication1.7 ApplicationsReferencesInductors2.1 IntroductionLumped Elements for RF and Microwave Circuits2.2 Basic Definitions2.2.1 Inductance2.2.2 Magnetic Energy182.2.3 Mutual Inductance202. 2. 4 Effective Inductance202.2.5Imedang2.2.6 Time Constant2.2.7 Quality Factor222.2.8 Self-Resonant Frequency232.2.9aximum Current Ratin2.2.10 Maximum Power Rating2.2.11 Other Parameters232.3 Inductor Configurations242.4 Inductor models2. 4. 1 Analytical Models252.4.2 Coupled-Line Appiroach282.4.3 Mutual Induse arppi342.4.4 Numerical Approach362.4.5 Measurement-Based model382.5 Coupling Between Inductors452.5. 1 Low-Resistivity Substrates2.5.2 High-Resistivity Substrates462.6 Electrical Representations2.6. 1 Series and Parallel representations2.6.2 Network Representations51References52Printed Inductors573.1 Inductors on Si Substrate583.1.1 Conductor Loss3.1.2 Substrate Loss3. 1.3 Layout Considerations3.1.4 Inductor Model3. 1.5 Q-Enhancement Techniques3.1.6 Stacked-Coil Inductor803.1.7 Temperature Dependence84
- 2021-05-07下载
- 积分:1
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lssvm工具箱
lssvm 工具箱进行svm 分类预测以及回归预测很好的工具箱可以通过tunelssvm进行网格搜索
- 2021-05-06下载
- 积分:1
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传智播客html css php+mysql实现办公留言系统
传智播客html css php+mysql实现办公留言系统下载地址
- 2020-12-01下载
- 积分:1
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MIMO雷达PCA处理后波束形成.m
【实例简介】经过PCA处理后的MIMO雷达波束形成matlab代码
- 2021-12-05 00:39:59下载
- 积分:1
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分数阶傅里叶变换MATLAB(附博客说明)
目前网络关于分数阶傅里叶变换可靠的代码来源主要有一下几个: (1)来源一: M.A. Kutay. fracF: Fast computation of the fractional Fourier transform, 1996. www.ee.bilkent.edu.tr/~haldun/fracF.m. (2)来源二: J. O’Neill. DiscreteTFDs:a collection of matlab files for time-frequency analysis, 1999. ftp.mathworks.com/pub/contrib/v5/signal/D
- 2020-12-06下载
- 积分:1
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Conefor Input扩展模块使用方法(中文)
Conefor Input扩展模块使用方法(中文),这个是根据Conefor Input扩展模块使用方法(英文),自己整理的中文操作手册,希望有用。
- 2020-12-10下载
- 积分:1
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tensor toolbox for matlab
一个matlab的张量分析工具箱,含有常用的张量运算函数和张量分解函数,如tucker分解,张量乘以向量、矩阵、张量等。
- 2020-12-11下载
- 积分:1
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实用多元统计分析(4e).rar
【实例简介】传说中的多元统计分析经典教材,英文版已经出到第6版,好不容易找到中文版,就卖3块钱吧
注意,是超星版的,比较清晰。下载后自己转成pdf看即可
- 2021-12-14 00:33:33下载
- 积分:1
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fpga学习资料fpga学习资料
FPGA资料,文档设计,原理设计,源码设计,适合入门级别。
- 2020-12-01下载
- 积分:1