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Description: SOFTWARE ENGINEERING
Published by McGraw-Hill, an imprint of The McGraw-Hill Companies, Inc. 1221 Avenue of the
Americas, New York, NY, 10020. Copyright/2001, 1997, 1992, 1987, 1982, by The McGraw-Hill Companies,
Inc. All rights reserved. No part of this publication may be reproduced or distributed in any
form or by any means, or stored in a database or retrieval system, without the prior written consent
of The McGraw-Hill Companies, Inc., including, but not limited to, in any network or other electronic
storage or transmission, or broadcast for distance learning.
This book is printed on acid-free paper.
1 2 3 4 5 6 7 8 9 0 DOC/DOC 0 9 8 7 6 5 4 3 2 1 0
ISBN 0073655783
Publisher: Thomas Casson
Executive editor: Betsy Jones
Developmental editor: Emily Gray
Marketing manager: John Wannemacher
Project manager: Karen J. Nelson
Production supervisor: Heather Burbridge
Coordinator freelance design: Keith McPherson
Supplement coordinator: Rose Range
New media: Christopher Styles
Cover design: Rhiannon Erwin
Cover illustrator: Joseph Gilians
Compositor: Carlisle Communications, Ltd.
Typeface: 8.5/13.5 Leawood
Printer: R. R. Donnelley & Sons Company
Library of Congress Cataloging-in-Publication Data
Pressman, Roger S.
Software engineering: a practitioner’s approach / Roger S. Pressman.—5th ed.
p. cm.— (McGraw-Hill series in computer science)
Includes index.
ISBN 0-07-365578-3
1. Software engineering. I. Title. II. Series.
QA76.758.P75 2001
005.1—dc21
00-036133
http://www.mhhe.com
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Author: zhangguangyun@gmail.com |
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Description: 12V供电 铅蓄电池充电模块（充电电流200-400mA）原理图及PCB图，附带指示灯，充满保护，器件清单。-12V rechargeable lead-acid battery power supply module (charge current 200-400mA) and PCB schematic diagram, with light, full protection, the device list.
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Size: 151552 |
Author: okapy |
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Description: 在蓄电池应用领域, 铅酸蓄电池以可靠、电容量大、维护简单等特点占有很大的市场。本文太阳能铅酸蓄电
池的充电方案采用了在单片机领域应用最广的51 单片机, 依靠adc 进行模拟量数据采集并在51 上采用软件实现pwm 算法
对12v 铅酸蓄电池进行( 三段精细) 充电控制, 得到良好的控制效果。基于51 单片机的铅酸蓄电池充电器的实现-Applications in batteries, lead-acid battery to a reliable, large capacity, simple to maintain a large market. In this paper, lead-acid battery charging solar energy program of the use of single-chip applications in the most extensive single-chip microcomputer 51, to rely on analog adc data collection and use of the 51 software pwm algorithm for 12v lead-acid batteries (three fine ) charge control, good control effect.
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Author: gys |
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Description: acid ACID-0.9.6b23.tar.gz（基于php的入侵检测数据库分析控制台源文件-acid ACID-0.9.6b23.tar.gz (based on php database analysis of intrusion detection console source file
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Size: 147456 |
Author: 肖飞智 |
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Description: 鋁和鋁合金的陽極氧化塗層
1.1 范围。这些说明包话六种类型和两种电流形成的铝胶片阳极电镀和非建筑物的铝合金的一些具体要求
1.2 分类：阳极氧化涂层的形式和分类的一些具体事项也在此说明（见6.2和6.21）
1.2.1 类型
TYPE I -含三价铬酸阳极电镀，常规胶片是从铬酸盐中提炼出来。
TYPE IB-含三价铬酸阳极电镀，低电压工序22±2V（见3.4.1）
TYPE IC - 非三价铬阳极电镀，用作一种转换TYPE I和IB涂层的非铬酸盐（见3.4.1和6.1.2）
TYPEII 硫磺酸阳极电镀。常规的涂层是从硫磺酸提炼出来的
TYPEIII 薄硫磺酸阳极电镀，用作一种非铬酸盐来转换TYPE I和IB涂层的。
TYPEIII - 坚硬的阳极氧化涂层处理。
1.2.2 分类.
类别1 非染色（见3.5）
类别2 染色 （见3.6）
2.可应用文件
2.1官方文件
2.1.1 详细说明和标准.以下具体要求和标准形成文件一部份。除非有特别要求。这些文件的问题争端已在防卫部门争端问题上列举出来。
具体说明
军方
MIL-P-23377 初次涂层，环氧聚酰胺和化学溶剂低抗。
MIL-C-81706 铝胶片和铝合金的材质化学转换
MIL-P-85582 初次涂层，环氧化和水上处理。
联邦
QQ-A –250/4 铝合金2024
-1.1 scope. Some specific requirements for aluminium alloy of these six types are illustrated including and two current formed alumina gel sheet anode electroplating and non of the building
The 1.2 category: a number of specific issues of form and classification of anodic oxidation coatings is also shown here (see 6.2 and 6.21)
1.2.1 type
TYPE I - containing trivalent chromic acid anodized, conventional film is abstracted chromate.
TYPE IB- containing trivalent chromic acid anodized, low voltage operation 22+ 2V (see 3.4.1)
TYPE IC - non trivalent chromium plating anode, non chromate used as a conversion of TYPE I and IB coatings (see 3.4.1 and 6.1.2)
TYPEII sulfuric acid anodizing. The conventional coating is extracted sulfuric acid
TYPEIII thin sulfuric acid anodized, used as a non chromate conversion coating of TYPE I and IB.
TYPEIII - hard anodic oxidation coating.
1.2.2 classification.
Category 1 non staining (see 3.5)
Category 2 staining (see
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Author: victor |
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Description: 该文件内容用于相空间重构参数时间延迟和嵌入维数的计算，时间延迟的计算包含去偏复自相关函数法和互信息法，嵌入维数的甲酸包含G-P算法和FNN算法。(The contents of this file are used to calculate the time delay and embedding dimension of phase space reconstruction parameters. The calculation of time delay includes depolarization complex autocorrelation function method and mutual information method. The embedding dimension of formic acid includes G-P algorithm and FNN algorithm.)
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Size: 4096 |
Author: Kenny0129 |
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