复杂介质中的弹性波理论在地球物理勘探、结构和材料无损检测以及医学超声成像等领域具有广泛应用。但系统介绍弹性波传播理论的著作并不多见。本书系统介绍了各向同性弹性固体介质中弹性波传播的基本理论，包括无限大固体介质中的弹性波传播；弹性波在界面处的反射和透射；弹性波通过有限厚度层状结构的反射和透射；半无限大体表面或覆盖层中传播的瑞利波和乐夫波；平板中的导波和漏波；圆柱杆中导波；对圆柱壳和圆球壳中的导波传播模式和传播特性也进行了介绍。关于弹性波散射和多重散射的相关内容，基于篇幅考虑没有纳入。作者长期给研究生讲授弹性波理论，同时进行复杂介质中弹性波传播及其应用研究。本书是作者在弹性波理论课程讲义基础上，结合自己科研工作编写而成。全书共分6章，侧重基础理论和分析方法的系统性。
The fun and friendly guide to the world's most popular onlinelearning management system Modular Object Oriented Dynamic LearningEnvironment, also known as Moodle, is an online learning managementsystem that creates opportunities for rich interaction betweeneducators and their audience. However, the market has been lackinga simple, easy-to-understand guide that covers all the essentialsof Moodle until now. Using straightforward language and anentertaining tone to decipher the intricate world of Moodle, thisbook provides you with the resources you need to take advantage ofall the eLearning and eTraining possibilities that Moodle offers.Offers a hands-on approach to learning Moodle, the revolutionaryonline learning management system Uses simple language pepperedwith good humor to break down the complexities of Moodle intoeasily digested pieces of information Caters to the specific needsof teachers and business trainers by providing the resources theyneed Moodle For Dummies provides you with the tools you
本书系统地介绍了冰冻圈科学，其内容涵盖冰冻圈组成各要素的形成发育、演化和研究方法，冰冻圈与气候系统其他圈层及人类圈的相互作用，涉及社会经济可持续发展和地缘政治等热点问题。本书可供地理、水文、地质、地貌、大气、生态、环境、海洋和区域经济社会可持续发展等领域有关科研和技术人员、大专院校相关专业师生使用和参考。
Announcing an all-new SELF-PACED TRAINING KIT designed to help maximize your performance on 70-236, the required exam for the new Microsoft Certified Technology Specialist (MCTS): Configuring Microsoft Exchange Server 2007 certification. This 2-in-1 kit includes the official Microsoft study guide plus practice tests on CD to help you assess your skills. It comes packed with the tools and features exam candidates want most including in-depth, self-paced training based on final exam content; rigorous, objective-by-objective review; exam tips from expert, exam-certified authors; and customizable testing options. It also provides real-world scenarios, case study examples, and practice exercises for the skills and expertise you can apply to the job. Work at your own pace through the lessons and lab exercises. Focusing on configuring Exchange Server 2007, this official study guide covers topics such as installing Exchange Server 2007; configuring recipients, groups, and mailboxes; setting up connectors and me
Announcing an all-new MCITP Self-Paced Training Kit designed to help maximize your performance on 70-622, the required exam for the new Microsoft Certified IT Professional (MCITP): Windows Vista Client Enterprise Support Technician certification. This 2-in-1 kit includes the official Microsoft study guide, plus practice tests on CD to help you assess your skills.
This book constitutes the refereed proceedings of the 8th International Workshop on Computer Algebra in Scientific Computing, CASC 2005, held in Kalamata, Greece in September 2005. The 41 revised full papers presented were carefully reviewed and selected from 75 submissions. The topics addressed in the workshop cover all the basic areas of scientific computing as they benefit from the application of computer algebra methods and software: algebraic methods for nonlinear polynomial equations and inequalities, symbolic-numeric methods for differential and differential-algebraic equations, algorithmic and complexity considerations in computer algebra, algebraic methods in geometric modelling, aspects of computer algebra programming languages, automatic reasoning in algebra and geometry, complexity of algebraic problems, exact and approximate computation, parallel symbolic-numeric computation, Internet accessible symbolic and numeric computation, problem-solving environments, symbolic and numerical computation in
This book provides practical, proven advice for encouraging adoption of your wiki project and growing it into a useful collaboration tool or vibrant online community Gives wiki users a toolbox of thriving wiki patterns, which enable newcomers to avoid making common mistakes or fumbling around for the solutions to the same problems as their predecessors Explains the major stages of wiki adoption and explores patterns that apply to each stage Presents concrete, proven examples of techniques that have helped people grow vibrant collaborative communities and change the way they work for the better Reviews the overall process, including setting up initial content, encouraging people to contribute, dealing with disruptive elements, fixing typos and broken links, making sure pages are in their correct categories, and more
The four-volume set LNCS 3036, LNCS 3037, LNCS 3038 and LNCS 3039 constitutes the refereed proceedings of the 4th International Conference on Computational Science, ICCS 2004, held in Kraków, Poland in June 2004. The four volumes present more than 550 reviewed contributed and invited papers of the main conference and its 30 workshops. The papers span the whole range of computational science, from foundational and methodological issues in computer science and algorithmic mathematics to advanced applications in virtually all sciences making use of computational techniques. The proceedings is a unique record of recent progress in the field.
The LNCS series reports state-of-the-art results in computer science research，development，and education，at a high level and in both printed and electronic form.Enjoying tight cooperation with the R&D community，with numerous individuals，as well as with prestigious organizations and societies，LNCS has grown into the most comprehensive computer science research forum available. The scope of LNCS，including its subseries LNAI，spans the whole range of computer science and information technology including interdisciplinary topics in a variety of application fields.The type of material published traditionally includes. —proceedings （published in time for the respective conference） —post-proceedings （consisting of thoroughly revised final full papers） —research monographs（which may be based on outstanding PhD work，research projects，technical reports，etc.）.
Take years off your keepsake photos or enhance the current ones with Photoshop CS3's powerful tools and the expert techniques and tips you'll find in this comprehensive guide. Using step-by-step instructions and over 500 pages of full-color examples, this book shows you how to clone, blend layers, add contrast, reduce glare, and more. From portraits to landscapes to architectural masterpieces, fine-tune your favorites with this expert guide. Harness the tools of the retouching trade: brushes, cloning, and others; Use layers and masks to build a non-destructive workflow; Rescue faded, torn, or stained photographs; Soften wrinkles, brighten eyes, tame hair, and smooth skin; Restore sepia-toned, black-and-white, and full-color photographs; Master resizing, resampling, resolution, and scanning; Companion Web Site. 作者简介： Mark Fitzgerald is a Photoshop teacher and consultant who specializes in helping professional photographers thrive in the digital
A thorough update to the industry standard for designing,developing, and deploying data warehouse and business intelligencesystems The world of data warehousing has changed remarkably since thefirst edition of The Data Warehouse Lifecycle Toolkit waspublished in 1998. In that time, the data warehouse industry hasreached full maturity and acceptance, hardware and software havemade staggering advances, and the techniques promoted in thepremiere edition of this book have been adopted by nearly all datawarehouse vendors and practitioners. In addition, the term"business intelligence" emerged to reflect the mission of the datawarehouse: wrangling the data out of source systems, cleaning it,and delivering it to add value to the business. Ralph Kimball and his colleagues have refined the original setof Lifecycle methods and techniques based on their consulting andtraining experience. The authors understand first-hand that a datawarehousing/business intelligence (DW/BI) system needs to change asfast as its sur
