Electromagnetic Vibrations Waves And Radiation Bekefi Pdf To Excel
Mechanical and electromagnetic vibrations and waves. George Bekefi Language: en. On the vibrations, waves, radiation.
Author by: George Bekefi Language: en Publisher by: MIT Press Format Available: PDF, ePub, Mobi Total Read: 42 Total Download: 779 File Size: 52,6 Mb Description: The book describes the features that vibrations and waves of all sorts have in commonand includes examples of mechanical, acoustical, and optical manifestations of these phenomena thatunite various parts of physics. The main emphasis, however, is on the oscillatory aspects of theelectromagnetic field—that is, on the vibrations, waves, radiation, and the interaction ofelectromagnetic waves with matter. Author by: S. Kaliski Language: en Publisher by: Elsevier Format Available: PDF, ePub, Mobi Total Read: 48 Total Download: 162 File Size: 47,6 Mb Description: This book gives a comprehensive overview of wave phenomena in different media with interacting mechanical, electromagnetic and other fields. Equations describing wave propagation in linear and non-linear elastic media are followed by equations of rheological models, models with internal rotational degrees of freedom and non-local interactions.
Equations for coupled fields: thermal, elastic, electromagnetic, piezoelectric, and magneto-spin with adequate boundary conditions are also included. Together with its companion volume Vibrations and Waves. Part A: Vibrations this work provides a wealth of information about dynamical phenomena in different media and fields, which will be of considerable interest to both scientists and graduate students. Author by: Sylwester Kaliski Language: en Publisher by: Format Available: PDF, ePub, Mobi Total Read: 94 Total Download: 892 File Size: 55,9 Mb Description: This book gives a comprehensive overview of wave phenomena in different media with interacting mechanical, electromagnetic and other fields.
Equations describing wave propagation in linear and non-linear elastic media are followed by equations of rheological models, models with internal rotational degrees of freedom and non-local interactions. Equations for coupled fields: thermal, elastic, electromagnetic, piezoelectric, and magneto-spin with adequate boundary conditions are also included. Together with its companion volume Vibrations and Waves. Part A: Vibrations this work provides a wealth of information about dynamical phenomena in different media and fields, which will be of considerable interest to both scientists and graduate students. Author by: Vincent Savaux Language: en Publisher by: John Wiley & Sons Format Available: PDF, ePub, Mobi Total Read: 97 Total Download: 840 File Size: 50,8 Mb Description: This book presents an algorithm for the detection of an orthogonal frequency division multiplexing (OFDM) signal in a cognitive radio context by means of a joint and iterative channel and noise estimation technique.
Based on the minimum mean square criterion, it performs an accurate detection of a user in a frequency band, by achieving a quasi-optimal channel and noise variance estimation if the signal is present, and by estimating the noise level in the band if the signal is absent. Organized into three chapters, the first chapter provides the background against which the system model is presented, as well as some basics concerning the channel statistics and the transmission of an OFDM signal over a multipath channel. In Chapter 2, the proposed iterative algorithm for the noise variance and the channel estimation is detailed, and in Chapter 3, an application of the algorithm for the free-band detection is proposed. In both Chapters 2 and 3, the principle of the algorithm is presented in a simple way, and more elaborate developments are also provided. The different assumptions and assertions in the developments and the performance of the proposed method are validated through simulations, and compared to methods of the scientific literature.
A H Barrett
Author by: A. Haghi Language: en Publisher by: CRC Press Format Available: PDF, ePub, Mobi Total Read: 70 Total Download: 483 File Size: 44,9 Mb Description: Engineered nanopolymer and nanoparticles, with their extraordinary mechanical and unique electronic properties, have garnered much attention in recent years.
With a broad range of potential applications, including nanoelectronics, composites, chemical sensors, biosensors, microscopy, nanoelectromechanical systems, and many more, the scientific community is more motivated than ever to move beyond basic properties and explore the real issues associated with carbon nanotube-based applications. Engineered nanopolymer and nanoparticles are exceptionally interesting from a fundamental research point of view. They open up new perspectives for various applications, such as nano-transistors in circuits, field-emission displays, artificial muscles, or added reinforcements in alloys. This informative book is an introduction to the physical concepts needed for investigating carbon nanotubes and other one-dimensional solid-state systems. Written for a wide scientific readership, each chapter consists of an instructive approach to the topic and sustainable ideas for solutions.
This new book presents leading-edge research in this dynamic field. It reviews the recent progress in application of engineered nanopolymer and nanoparticles and their composites. The advantages and disadvantages of different methods are discussed.
The ability of continuum methods to bridge different scales is emphasized. Recommendations for future research are given by focusing on what each method has to learn from the nano-scale. The scope of the book is to provide current knowledge to support researchers entering the scientific area of carbon nanotubes and help them choose the appropriate modeling tool for accomplishing their study and where to place their efforts to further improve continuum methods. Author by: Gustaf Kron Language: en Publisher by: Format Available: PDF, ePub, Mobi Total Read: 41 Total Download: 602 File Size: 53,5 Mb Description: Electromagnetic waves are waves which can travel through the vacuum of outer space. Mechanical waves, unlike electromagnetic waves, require the presence of a material medium in order to transport their energy from one location to another. Light, microwaves, xrays, and TV and radio transmissions are all kinds of electromagnetic waves.
They are all the same kind of wavy disturbance that repeats itself over a distance called the wavelength. The mechanism of energy transport through a medium involves the absorption and reemission of the wave energy by the atoms of the material. When an electromagnetic wave impinges upon the atoms of a material, the energy of that wave is absorbed. The absorption of energy causes the electrons within the atoms to undergo vibrations.
George Bekefi
After a short period of vibrational motion, the vibrating electrons create a new electromagnetic wave with the same frequency as the first electromagnetic wave. While these vibrations occur for only a very short time, they delay the motion of the wave through the medium. Once the energy of the electromagnetic wave is reemitted by an atom, it travels through a small region of space between atoms. Once it reaches the next atom, the electromagnetic wave is absorbed, transformed into electron vibrations and then reemitted as an electromagnetic wave. Electromagnetic Waves Propagation in Complex Matter emphasizes the topics of wave propagation and interaction with matters.
Physics Today
The book bridges the gap between physics and engineering in these issues.