算法可以对各种数据进行聚类分析，具体的应用领域包括图像、文本、生物信息学等等

Crack-Propagation 基于ABAQUS软件平台，利用PYTHON语言编写了模拟裂纹自动 扩展的程序模块，实现了模拟裂纹自动扩展过程中有限元网 格的自动重划分功能.

Channels Propagation and Antennas for Mobile Communications的电子书，内容详实，大家可以参考

约翰逊的又一本SI力作，介绍如下： Raves for Dr. Johnson's previous classic, High-Speed Digital Design! "....one of the finest efforts to come along in the field of applied high-speed digital design because of its focus on providing tools for the whole design team bringing a high-speed product to life. For all the PCB designers and circuit designers out there, buy it; read it; keep it." -Dan Baumgartner, Printed Circuit Design In High-Speed Signal Propagation, Howard Johnson and Martin Graham bring together state-of-the-art techniques for building digital interconnections that can transmit faster, farther, and more efficiently than ever before. Packed with new examples and never-before-published high-speed design guidance, this book offers a complete and unified theory of signal propagation for all metallic media, from cables to pcb traces to chips. Coverage includes: Managing tradeoffs between speed and distance Physical theory of signal impairments: skin and proximity effects, dielectric loss, surface roughness, and non-TEM mode propagation Generalized frequency- and step-response models Calculation of time-domain waveforms from frequency-domain transfer functions Differential signaling: Edge-coupled and broadside-coupled differential pairs, bends, intra-pair skew, differential trace geometry impedance, crosstalk, and radiation Inter-cabinet connections: Coax, twisted-pair, fiber, equalizers, and LAN building wiring Clock distribution: Special requirements, repeaters, multi-drop clock distribution, jitter, and power filtering Simulation: Frequency domain simulation methods, Spice, and IBIS

International Symposium on Antennas and Propagation

By Howard Johnson, Martin Graham Publisher : Prentice Hall PTR Pub Date : February 24, 2003 ISBN : 0-13-084408-X Pages : 800 CHM format

by Rodney Vaughan and Jorgen Bach Andersen ISBN:0852960840 Institution of Electrical Engineers © 2003 (753 pages) This exceptional text introduces the reader to the theory and basis of antennas and propagation in the rapidly developing field of mobile communications. Topics covered include basic multipath mechanisms and propagation, propagation modeling, and more

by Rodney Vaughan and Jorgen Bach Andersen ISBN:0852960840 Institution of Electrical Engineers © 2003 (753 pages) This exceptional text introduces the reader to the theory and basis of antennas and propagation in the rapidly developing field of mobile communications. Topics covered include basic multipath mechanisms and propagation, propagation modeling, and more.

Thoroughly revised and updated, this second edition offers a fundamental and comprehensive treatment of how mobile systems operate in a variety of scenarios. This unrivalled approach concentrates on the properties of the radio channel, a vital and central feature that places fundamental limitations on the performance of radio systems. Bringing the reader completely up-to-date, this book: * Features two new chapters: 'Multipath Mitigation Techniques' and 'Radio System Planning' * Surveys various alternative methods of predicting the mean signal strength and its variability, and discusses their applications * Introduces ray-tracing methods in connection with indoor propagation * Discusses multipath and its effects on narrowband and wideband systems * Describes channel sounders and reviews methods of hardware and software simulation * Examines man-made noise and interference and discusses the resulting performance degradation By equipping the reader with a thorough understanding of the physical processes that underlie the propagation of radio waves, this systematic approach will prove to be an authoritative and attractive text for researchers, systems designers, university academics and postgraduate students.

Finding overlapping communities in networks by label propagation论文