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Application of a Finite-Volume Time-Domain Maxwell Equation Solver to Three-Dimensional Objects
Manufacturer: Storming Media ProductGroup: Book Binding: Spiral-bound ASIN: 1423573986 |
Product Description
This is a AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A433123. The abstract provided by the Pentagon follows: Concurrent engineering approaches for the disciplines of computational fluid dynamics (CFD) and electromagnetics (CEM) are necessary for designing future high-performance, low-observable aircraft. A characteristic- based finite-volume time-domain (FVTD) computational algorithm, developed for CFD and now applied to CEM, is implemented to analyze the radar cross section (RCS) of two three-dimensional objects, the ogive and cone-sphere. The FVTD formulation implements a Monotone Upstream-Centered Scheme for Conservation Laws (MUSCL) algorithm for the flux evaluation and a Runge-Kutta multi-stage scheme for the time integration. Developmental FVTD work for the thesis focused on algorithm development to analyze scattering and obtain RCS data for closed- surface perfect electric conductor (PEC) 3-D objects using either a Gaussian pulse or sinusoid incident wave. In addition, specification of the direction and polarization of the incident wave gives monostatic and bistatic RCS results. Convergence and threshold checks end the simulation run to ensure accurate computation of the RCS. Validation of the characteristic-based FVTD formulation and code for electromagnetic scattering problems is completed by comparing RCS results obtained from the FVTD code to Moment Method and empirical RCS data. The FVTD results for the ogive and cone-sphere are within 3.0 dB of the MoM results and 3.1 dB of the empirical RCS results. Accurate FVTD computations of diffraction, traveling waves, and creeping waves require a surface grid point density of 15-30 cells/lamda.
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Stability and Stabilization of Infinite Dimensional Systems with Applications (Communications and Control Engineering)
Zheng-Hua Luo , Bao-Zhu Guo , and Ömer Morgül Manufacturer: Springer ProductGroup: Book Binding: Hardcover ASIN: 1852331240 |
Book Description
This book reports on recent achievements in stability and feedback stabilization of infinite systems. In particular emphasis is placed on second order partial differential equations, such as Euler-Bernoulli beam equations, which arise from vibration control of flexible robot arms and large space structures. Various control methods such as sensor feedback control and dynamic boundary control are applied to stabilize the equations. Many new theorems and methods are included in the book. Proof procedures of existing theorems are simplified, and detailed proofs have been given to most theorems. In addition to benefiting from the presentation of new results on semigroups and their stability, readers can also learn several useful techniques for solving practical engineering problems. Until now, the recently obtained research results included in this book were unavailable in one volume. This self-contained book is an invaluable source of information for all those who are familiar with some basic theorems of functional analysis.
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Analysis of Rough Surface Lighting Behaviors With OpenGL
Manufacturer: Storming Media ProductGroup: Book Binding: Spiral-bound ASIN: 1423525701 |
Product Description
This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A153793. The abstract provided by the Pentagon follows: In the physical world, humans gather valuable information about objects through their sight. Information on shape, feel and composition are seen long before the object is touched. This information is generated by light reflecting off the surface of objects. Despite the advancement of computer graphics due to increased hardware rendering capacity, the fundamental equations, which draw three-dimensional scenes, lack the ability to truly model realistic objects. Whether it is smooth like highly polished metal or rough like the shag of a carpet, it is the reflection of light that tells humans what a surface feels like. The attempt taken in this thesis to implicitly model the roughness of textured surfaces through examination of an explicit model rendered with the OpenGL lighting equation.
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Boundary Control and Variation (Lecture Notes in Pure and Applied Mathematics)
Zolesio Manufacturer: CRC ProductGroup: Book Binding: Paperback ASIN: 0824792742 |
Book Description
Based on the Working Conference on Boundary Control and Boundary Variation held in Sophia-Antipolis, France, this work provides important examinations of shape optimization and boundary control of hyperbolic systems, including free boundary problems and stabilization. It offers a new approach to large and nonlinear variation of the boundary using global Eulerian co-ordinates and intrinsic geometry.
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Control and Boundary Analysis (Lecture Notes in Pure and Applied Mathematics)
Manufacturer: CRC ProductGroup: Book Binding: Paperback ASIN: 1574445944 |
Book Description
This volume comprises selected papers from the 21st Conference on System Modeling and Optimization in Sophia Antipolis, France. It covers over three decades of studies involving partial differential systems and equations. Topics include: the modeling of continuous mechanics involving fixed boundary, control theory, shape optimization and moving boundaries, and topological shape optimization. This edition discusses all developments that lead to current moving boundary analysis and the stochastic approach.
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Frame Rate Effects on Human Spatial Perception in Video Intelligence
Manufacturer: Storming Media ProductGroup: Book Binding: Spiral-bound ASIN: 1423534670 |
Product Description
This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A782283. The abstract provided by the Pentagon follows: This thesis examines the effect that the frame rate of a streaming video feed has on one's ability to maintain spatial perception. It defines the current technologies available to capture and encode digital video. It describes the current and near future wireless information systems that could be utilized to support streaming video. This thesis investigates through experimental trials of subjects viewing video streams at different frame rates, the effect those frame rates have on the subject's spatial perception. This thesis analyzes and summarizes the data collected from this experiment and provides recommendations. It is determined that the inherent chaotic nature of tactical movement and the method used to encode digital video are not compatible for video streams with high motion in the three dimensional planes. Results of this analysis suggest that a large amount of bandwidth would be consumed to provide the minimum quality of service indicated by the data and suggests that video to the commanders at the frontline is not a useful allocation of bandwidth.
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Free and Moving Boundaries: Analysis, Simulation and Control, Volume 252 (Lecture Notes in Pure and Applied Mathematics)
Manufacturer: Chapman & Hall/CRC ProductGroup: Book Binding: Paperback ASIN: 1584886064 |
Book Description
Addressing algebraic problems found in biomathematics and energy, Free and Moving Boundaries: Analysis, Simulation and Control discusses moving boundary and boundary control in systems described by partial differential equations. With contributions from international experts, the book emphasizes numerical and theoretical control of moving boundaries in fluid structure couple systems, arteries, shape stabilization level methods, family of moving geometries, and boundary control. Using numerical analysis, the contributors examine the problems of optimal control theory applied to partial differential equations arising from continuum mechanics. The book presents several applications to electromagnetic devices, flow, control, computing, images analysis, topological changes, and free boundaries. It specifically focuses on the topics of boundary variation and control, dynamical control of geometry, optimization, free boundary problems, stabilization of structures, controlling fluid-structure devices, electromagnetism 3D, and inverse problems arising in areas such as biomathematics. Free and Moving Boundaries: Analysis, Simulation and Control explains why the boundary control of physical systems can be viewed as a moving boundary control, empowering the future research of select algebraic areas.
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Functional Analytic Methods for Evolution Equations (Lecture Notes in Mathematics)
Giuseppe Da Prato , Peer Christian Kunstmann , Irena Lasiecka , Alessandra Lunardi , Roland Schnaubelt , and Lutz Weis Manufacturer: Springer ProductGroup: Book Binding: Paperback ASIN: 3540230300 |
Book Description
This book consists of five introductory contributions by leading mathematicians on the functional analytic treatment of evolutions equations. In particular the contributions deal with Markov semigroups, maximal L^p-regularity, optimal control problems for boundary and point control systems, parabolic moving boundary problems and parabolic nonautonomous evolution equations. The book is addressed to PhD students, young researchers and mathematicians doing research in one of the above topics.
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Instability in Models Connected with Fluid Flows (International Mathematical Series)
Manufacturer: Springer ProductGroup: Book Binding: Paperback ASIN: 0387755470 |
Book Description
The advantages of the study of the stability and instability of models in fluid mechanics are presented by world-recognized specialists in mathematical analysis, PDEs, optimal control, etc.
The two volumes are available separately, or together at a reduced price for the two-volume set. See the entries for the individual volumes for details of the coverage of each volume.
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Instability in Models Connected with Fluid Flows I (International Mathematical Series)
Manufacturer: Springer ProductGroup: Book Binding: Hardcover ASIN: 0387752161 |
Book Description
The notions of stability and instability play a very important role in mathematical physics and, in particular, in mathematical models of fluids flows. Currently, one of the most important problems in this area is to describe different kinds of instability, to understand their nature, and also to work out methods for recognizing whether a mathematical model is stable or instable.
In the current volume, Claude Bardos and Andrei Fursikov, have drawn together an impressive array of international contributors to present important recent results and perspectives in this area. The main topics covered are devoted to mathematical aspects of the theory but some novel schemes used in applied mathematics are also presented.
Various topics from control theory, free boundary problems, Navier-Stokes equations, first order linear and nonlinear equations, 3D incompressible Euler equations, large time behavior of solutions, etc. are concentrated around the main goal of these volumes the stability (instability) of mathematical models, the very important property playing the key role in the investigation of fluid flows from the mathematical, physical, and computational points of view. World - known specialists present their new results, advantages in this area, different methods and approaches to the study of the stability of models simulating different processes in fluid mechanics.
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Essentials of College Mathematics for Business, Economics, Life Sciences and Social Sciences (3rd Edition)
Raymond A. Barnett , and Michael R. Ziegler Manufacturer: Prentice Hall ProductGroup: Book Binding: Hardcover Similar Items:
ASIN: 0023059311 |
Book Description
This book offers an outstanding algebra review, detailed coverage of finite mathematics and sound treatment of both differential and integral calculus. This edition offers thorough coverage of the graphing calculator and computer through optional exercises and supplements. The largest, most varied selection of applications available will convince even the most skeptical reader that mathematics is useful. There are over 300 worked examples included, presented in example-solution-matched problem format to encourage active learning. The book includes over 3,800 carefully selected and accurate problems divided into A, B, and C level of difficulty. Carefully selected and organized topics are structured to provide maximum flexibility in selection of material, with a Chapter Dependency Chart included in the Preface. Added optional graphics calculator and computer exercises give the reader excellent hands-on practice. Revised topical coverage includes the review of basic set theory, expanded coverage of counting techniques now including sets and Venn diagrams is presented in two sections as opposed to one, rewritten and expanded section on factoring polynomials now includes applications of the quadratic formula to factoring second-degree polynomials, and material on inverse matrices and systems of equations is now presented in two sections.Customer Reviews:
I thought it was pretty good actually.......2001-10-20
Is this book talking about math? Did I miss something?.......2001-06-21
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Essentials of College Mathematics for Business, Economics, Life Sciences and Social Sciences
Raymond A.Ziegler, Michael R. Barnett Manufacturer: Prentice Hall ProductGroup: Book Binding: Paperback ASIN: B000O8TJN2 |
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Ghost Light: A Memoir
Frank Rich Manufacturer: Random House Trade Paperbacks ProductGroup: Book Binding: Paperback Similar Items:
ASIN: 0375758240 Release Date: 2001-10-09 |
Amazon.com
When Frank Rich was an anxious, unhappy kid marooned in the suburbs of Washington, D.C., the fact his parents were divorced was discussed "only in the whisper that Grandma Ross used when talking about being Jewish or having cancer." Like so many others who feel painfully different, Frank found refuge in the theater, particularly the classic musicals of Broadway's golden age. After an enchanted trip to see Bells Are Ringing in 1956 when he was 7, Rich writes, "I was now destined to trace my childhood almost exclusively through an accelerating progression of plays, good and bad, that would captivate and kidnap me." Many of the tickets came from his stepfather, who was sometimes generous and fun but often frighteningly abusive. Once again, the theater helped him cope: when Frank saw Gypsy, its portrait of troubled family relations "made me feel less lonely." Similarly, when chronicling his attendance at such legendary shows as Bye Bye Birdie, Fiddler on the Roof, and A Funny Thing Happened on the Way to the Forum, among many others, Rich concentrates on his responses rather than the productions themselves. What interests him most here is the theater's power to shape lives. Paying tribute to the men who both shared and cultivated his passion for the theater, Rich draws touching portraits of Scott Kirkpatrick, manager of Washington's National Theatre, who hired young Frank as a ticket taker, and of Clayton Coots, a company manager who befriended him. Those who admired (or excoriated) Rich's work as drama critic for The New York Times will find Ghost Light an intriguing look at the personal history that lies behind his critical judgments. --Wendy SmithBook Description
There is a superstition that if an emptied theater is ever left completely dark, a ghost will take up residence. To prevent this, a single "ghost light" is left burning at center stage after the audience and all of the actors and musicians have gone home. Frank Rich's eloquent and moving boyhood memoir reveals how theater itself became a ghost light and a beacon of security for a child finding his way in a tumultuous world.Customer Reviews:
This author was given a lot of freedom.......2007-08-29
rich memories.......2007-05-19
Life begins in the theatre.......2007-05-06
Saving Mr. Rich.......2006-06-01
A poignant memoir.......2001-08-03
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Ghost Light a Memoir
Frank Rich Manufacturer: Random House ProductGroup: Book Binding: Hardcover ASIN: B000X68P30 |
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Justice: Without fear or favour
Kevin Ryan Manufacturer: Hodder Moa Beckett ProductGroup: Book Binding: Unknown Binding ASIN: 1869585739 |
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Malaysia today: Without fear or favour
Chee Khoon Tan Manufacturer: Pelanduk Publications ProductGroup: Book Binding: Paperback ASIN: 9679780791 |
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Without Fear of Favour
Bill McCormack , and Bob Cooper Manufacturer: Stoddart ProductGroup: Book Binding: Hardcover ASIN: 0773731687 |
Customer Reviews:
AWSOME, A MUST READ!!!.......1999-09-21
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Without Fear or Favour
A.E./Dreyer, Marien Debenham Manufacturer: Edwards & Shaw ProductGroup: Book Binding: Hardcover ASIN: B000J0TDKO |
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Without fear or favour
Margaret L Friend Manufacturer: [s.n.] ProductGroup: Book Binding: Unknown Binding ASIN: B0007J1XWI |
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Without fear or favour
Chee Khoon Tan Manufacturer: Eastern Universities Press (M) ProductGroup: Book Binding: Unknown Binding ASIN: 967908051X |
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Without fear or favour
Bob Bottom Manufacturer: Sun Books ProductGroup: Book Binding: Paperback ASIN: 0725104538 |
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Without fear or favour
Cecil Harmsworth King Manufacturer: Sidgwick & Jackson ProductGroup: Book Binding: Unknown Binding ASIN: 028397804X |
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Without Fear Or Favour - The Biography Of A Career
A. E. Debenham Manufacturer: Edwards & Shaw ProductGroup: Book Binding: Hardcover ASIN: B000KLFL1W |
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Without fear or favour: 150 years policing Auckland, 1840-1900
Owen J Cherrett Manufacturer: The New Zealand Police ProductGroup: Book Binding: Unknown Binding ASIN: 0473007843 |
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