Language Disorders from Infancy Through Adolescence, 4th Edition is the go-to text for all the information you need to properly assess childhood language disorders and provide appropriate treatment. This core resource spans the entire developmental period through adolescence, and uses a descriptive-developmental approach to present basic concepts and vocabulary, an overview of key issues and controversies, the scope of communicative difficulties that make up child language disorders, and information on how language pathologists approach the assessment and intervention processes. This new edition also features significant updates in research, trends, instruction best practices, and social skills assessment.        ,解压密码 share.weimo.info
2021-11-30 14:09:26 9.36MB 英文
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Digital Signal Processing: Fundamentals and Applications By 作者: Lizhe Tan Ph.D. Electrical Engineering University of New Mexico – Jean Jiang Ph.D. Electrical Engineering University of New Mexico ISBN-10 书号: 0128150718 ISBN-13 书号: 9780128150719 Edition 版本: 3 Release Finelybook 出版日期: 2018-11-23 pages 页数: (920 ) $120 Digital Signal Processing: Fundamentals and Applications, Third Edition, not only introduces students to the fundamental principles of DSP, it also provides a working knowledge that they take with them into their engineering careers. Many instructive, worked examples are used to illustrate the material, and the use of mathematics is minimized for an easier grasp of concepts. As such, this title is also useful as a reference for non-engineering students and practicing engineers. The book goes beyond DSP theory, showing the implementation of algorithms in hardware and software. Additional topics covered include adaptive filtering with noise reduction and echo cancellations, speech compression, signal sampling, digital filter realizations, filter design, multimedia applications, over-sampling, etc. More advanced topics are also covered, such as adaptive filters, speech compression such as PCM, µ-law, ADPCM, and multi-rate DSP, over-sampling ADC subband coding, and wavelet transform. Covers DSP principles with an emphasis on communications and control applications Includes chapter objectives, worked examples, and end-of-chapter exercises that aid the reader in grasping key concepts and solving related problems Provides an accompanying website with MATLAB programs for simulation and C programs for real-time DSP Presents new problems of varying types and difficulties Digital Signal Processing: Fundamentals and Applications Copyright Preface 1Introduction to Digital Signal Processing 2 Signal Sampling and Quantization 3Digital Signals and Systems 4Discrete Fourier Transform and Signal Spectrum 5 The z-Transform 6Digital Signal Processing Systems, Basic Filteri
2021-11-30 12:58:48 32.47MB Matlab
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Intel® Parallel Studio XE Cluster Edition for Windows or linux* 2018最新版许可key破解文件
2021-11-30 09:52:05 952B Intel® Parallel Studio XE
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Operating System Concepts, 7th edition, 习题答案(英文)
2021-11-30 08:12:13 912KB Operating System Concepts 7th
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表 4.1 切比雪夫变换器设计参数表格 N(节数) 2 2 3 3 4 7 倍频数(f2 f1⁄ ) 1.5 2.0 2.0 3.0 4.0 10.0 1 臂最大驻波比 1.038 1.106 1.029 1.105 1.100 1.206 2、3 臂最大驻波比 1.007 1.021 1.015 1.038 1.039 1.098 2、3 臂最小隔离度 36.6 27.3 38.7 27.9 26.8 19.4 Z1(归一化值) 1.1998 1.2197 1.1124 1.1497 1.1157 1.1274 Z2 1.6670 1.6398 1.4142 1.4142 1.2957 1.2051 Z3 1.7979 1.7396 1.5435 1.3017 Z4 1.7926 1.4142 Z5 1.5364 Z6 1.6597 Z7 1.7740 r1(归一化值) 5.3163 4.8204 10.0000 8.0000 9.6432 8.8494 r2 1.8643 1.9602 3.7460 4.2292 5.3826 12.3329 r3 1.9048 2.1436 3.4524 8.9246 r4 2.0633 6.3980 r5 4.3516 r6 2.5924 r7 1.9652 4.3.3 多节阻抗变换器的新型计算公式 我们知道传输线的四分之一波长线具有阻抗变换的特性。这种变换关系可表示成 如下式(4.10)所示: Zl=√Z0ZL (4.10) 式(4.10)中Z l 为长度为1 4⁄ 波长的传输线特征阻抗,ZL和Z0为连接在Zl传输线 两端的两个不同尺寸微带线的阻抗,如图 4-6 所示。 0 Z l Z L Z 图 4-6 单节1 4⁄ 波长变换器 据此理论下面将详细介绍新型公式的推导过程并给出最终的新型公式的表达式。 如图 4-7 为N节二等分 Wilkinson 功分器电路原理图,图中Z0为功分器输入、输出端口 所接的终端 50Ω 负载。由于等分型功分器的两支路是完全对称的,因此只需计算一支 万方数据
2021-11-29 21:40:23 3.98MB 天线
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经典数据库教材Database Management Systems 第三版 以及习题解答
2021-11-29 21:08:17 17.95MB Database Management Systems 数据库
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python 网络编程 twisted框架,
2021-11-29 20:48:12 10.02MB python twisted
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[英文原版] High.Performance.MySQL,2nd.Edition.pdf
2021-11-28 18:35:49 5.63MB [英文原版]
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破解版 Lucid Virtu MVP 2.0 Pro Edition 3.0.107 x86 x64 + crack
2021-11-28 13:22:10 12.05MB Lucid Virtu
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GPS Satellite Surveying, Fourth Edition; GPS Satellite Surveying, Fourth Edition
2021-11-28 11:54:11 14.94MB GNSS
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