| تبليغات | X |
دانلود و خرید کتابهای الکترونیک،فیلم های مستند،مجلات روز و مقالات علمی
نام کتاب: جریان سیال تراکم ناپذیر
نویسندگان:M. O. Deville, P. F. Fischer, E. H. Mund
مشخصات:Cambridge University Press | 2002-08-15| PDF | 350 pages | 4,9 Mb
توضیحات:
High-order numerical methods provide an efficient approach to simulating many physical problems. This book considers the range of mathematical, engineering, and computer science topics that form the foundation of high-order numerical methods for the simulation of incompressible fluid flows in complex domains. Introductory chapters present high-order spatial and temporal discretizations for one-dimensional problems. These are extended to multiple space dimensions with a detailed discussion of tensor-product forms, multi-domain methods, and preconditioners for iterative solution techniques. Numerous discretizations of the steady and unsteady Stokes and Navier-Stokes equations are presented, with particular attention given to enforcement of incompressibility. Advanced discretizations, implementation issues, and parallel and vector performance are considered in the closing sections. Numerous examples are provided throughout to illustrate the capabilities of high-order methods in actual applications. Computer scientists, engineers and applied mathematicians interested in developing software for solving flow problems will find this book a valuable reference.
نام کتاب: ابزار و اجزائ ماشین
نویسنده: Robert O. Parmley
مشخصات: McGraw-Hill Professional | ISBN: 0071436871 | 1 edition | PDF | 400 pages | 37039 KB
توضیحات:
Invaluable to anyone who designs, repairs, or operates machines, this sourcebook contains 2000 illustrations of the most commonly used components found in home appliances, office machines, vehicles, aircraft, ships, construction, factory equipment, and machine tools. The author also includes design formulas and structural data.
Contents: Mechanisms * Machine Elements * Gearing * Fluid-Filled Bearing * Bearings with Rolling Contact * Packing and Seals * Pipe, Fitting, and Valves * Key Equations and Charts for Designing Mechanisms
مشخصات: The MIT Press | 1996-08-01 | ISBN:0262531372 | PDF | 226 pages
توضیحات:
Technology is becoming molecularly precise. Nanotechnology, otherwise known as molecular engineering, will soon create effective machines as small as DNA. This capacity to manipulate matter -- to program matter -- with atomic precision will utterly change the economic, ecological, and cultural fabric of our lives. This book, which is accessible to a broad audience while providing references to the technical literature, presents a wide range of potential applications of this new material technology.
The first chapter introduces the basic concepts of molecular engineering and demonstrates that several mutually reinforcing trends in current research are leading directly into a world of surprisingly powerful molecular machines. Nine original essays on specific applications follow the introductory chapter. The first section presents applications of nanotechnology that interact directly with the molecular systems of the human body. The second presents applications that function, for the most part, outside the body. The final section details the mechanisms of a universal human-machine interface and the operation of an extremely high resolution display system.
نویسنده: Sean Carroll
مشخصات: Benjamin Cummings | 2003-09-28 | ISBN: 0805387323 | Djvu | 513 pages | 7,5 Mb
توضیحات:
Spacetime and Geometry: An Introduction to General Relativity provides a lucid and thoroughly modern introduction to general relativity. With an accessible and lively writing style, it introduces modern techniques to what can often be a formal and intimidating subject. Readers are led from the physics of flat spacetime (special relativity), through the intricacies of differential geometry and Einstein's equations, and on to exciting applications such as black holes, gravitational radiation, and cosmology. For advanced undergraduates and graduate students, or anyone interested in astronomy, cosmology, physics, or general relativity.
تعریف موشک:
پرتابهای است که با نیروی عکسالعمل ناشی از خروج گاز (معمولاً ناشی از سوختن سوخت) حرکت میکند. در موشک ماده اکسیدکننده نیز به همراه سوخت حمل میشود و سوختن سوخت در آن نیاز به اکسیژن هوا ندارد. از این نظر موشک با راکت و فشفشه فرق دارد.
نام کتاب: تکنیکهای تخصصی ریاضیات
نویسندگان: Stan Gibilisco, Norman H. Crowhurst
مشخصات: McGraw-Hill/TAB Electronics | 2007-10-09 | ISBN: 0071494480 | PDF | 627 pages | 7,2 Mb
توضیحات:
A thorough revision of the classic tutorial of scientific and engineering mathematics
For more than fifteen years, Mastering Technical Mathematics has been the definitive self-teaching guide for those wishing to boost their career by learning the principles of mathematics as they apply to science and engineering. Featuring the same user-friendly pedagogy, practical examples, and detailed illustrations that have made this resource a favorite of the scientific and technical communities, the new third edition delivers four entirely new chapters and expanded treatment of cutting-edge topics.
نام کتاب: دینامیک پیشرفته
نویسنده:JDonald T. Greenwood
مشخصات: Cambridge University Press | 2006-11-02 | ISBN: 0521029937 | PDF | 435 pages | 1,9 Mb
توضیحات:
Emphasizing learning through problem solving, Donald Greenwood analyzes in detail the strengths and weaknesses of various approaches to dynamics. He describes techniques that will improve computational efficiency considerably, especially when applied to complex dynamical systems. A key feature of his text is the inclusion of many proven examples and homework problems. The book is intended for use in graduate courses on dynamics and will appeal to practicing mechanical and aerospace engineers.
