Development Of Rf Coils And Pulsing Methods For Nmr Mri
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Development Of Rf Coils And Pulsing Methods For Nmr Mri
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Author : BuSik Park
language : en
Publisher:
Release Date : 2009
Development Of Rf Coils And Pulsing Methods For Nmr Mri written by BuSik Park and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Radiofrequency magnetic (B1) field inhomogeneity and absorbed power in sample and RF coil have been among the main causes for image degradation in magnetic resonance imaging (MRI) since its inception. The problem becomes more pronounced at high frequencies as wavelengths in tissue become shorter. To address these problems, we present methods for design, implementation, and evaluation of RF coils considering excitation uniformity and/or specific absorption rate (SAR) for high field nuclear magnetic resonance (NMR) and MRI. Specifically, we present 1) the design of a novel radiofrequency (RF) coil for imaging of histological slices of tissue using a 7.0 T MRI system, 2) numerical model of a dielectric resonator for high field MRI, 3) a method to separate conservative and magnetically-induced electric fields from numerical calculations for MR microscopy, 4) a simple method to decrease sample heating using conductive wires, 5) a numerical analysis of conservative and magnetically-induced electric field for low-frequency human imaging, 6) numerical calculation results for the B1 field and SAR evaluation in a 3T neonate head coil, and 7) design of a slice-selective array-optimized composite pulse to improve B1 uniformity and reduce SAR using an 8-channel transmit head array loaded with a head model. The methods and results presented here can provide very useful information for designing RF coils considering excitation uniformity and SAR simultaneously in high field MRI/NMR.
Nuclear Magnetic Resonance
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Author : G A Webb
language : en
Publisher: Royal Society of Chemistry
Release Date : 2007-10-31
Nuclear Magnetic Resonance written by G A Webb and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-10-31 with Science categories.
As a spectroscopic method, Nuclear Magnetic Resonance (NMR) has seen spectacular growth over the past two decades, both as a technique and in its applications. Today the applications of NMR span a wide range of scientific disciplines, from physics to biology to medicine. Each volume of Nuclear Magnetic Resonance comprises a combination of annual and biennial reports which together provide comprehensive of the literature on this topic. This Specialist Periodical Report reflects the growing volume of published work involving NMR techniques and applications, in particular NMR of natural macromolecules which is covered in two reports: "NMR of Proteins and Acids" and "NMR of Carbohydrates, Lipids and Membranes". For those wanting to become rapidly acquainted with specific areas of NMR, this title provides unrivalled scope of coverage. Seasoned practitioners of NMR will find this an in valuable source of current methods and applications. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.
Nuclear Magnetic Resonance Spectroscopy In The Study Of Neoplastic Tissue
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Author : Raffaella Tosi
language : en
Publisher: Nova Publishers
Release Date : 2005
Nuclear Magnetic Resonance Spectroscopy In The Study Of Neoplastic Tissue written by Raffaella Tosi and has been published by Nova Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Medical categories.
Nmr In Physiology And Biomedicine
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Author : Robert J. Gillies
language : en
Publisher: Academic Press
Release Date : 2013-10-22
Nmr In Physiology And Biomedicine written by Robert J. Gillies and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.
This book provides a comprehensive review of modern nuclear magnetic resonance approaches to biomedical problems in vivo using state-of-the-art techniques. It devotes equal attention to the methods and applications of NMR and addresses the potential of each of the techniques discussed. The volume includes late-breaking areas such as functional imaging, flow imaging, bioreactor spectroscopy, and chemical shift imaging. All chapters are written in a "current concepts" style that renders information accessible to readers at all levels. Contributors are known experts in the field, lending the book an international perspective.
Nih Publication
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Author :
language : en
Publisher:
Release Date : 1990
Nih Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
A Review Of The Literature Published Between June 1996 And May 1997
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Author : G. A. Webb
language : en
Publisher: Royal Society of Chemistry
Release Date : 1998
A Review Of The Literature Published Between June 1996 And May 1997 written by G. A. Webb and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Medical categories.
Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry.
Spectroscopy Of Rubbers And Rubbery Materials
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Author : Victor M. Litvinov
language : en
Publisher: iSmithers Rapra Publishing
Release Date : 2002
Spectroscopy Of Rubbers And Rubbery Materials written by Victor M. Litvinov and has been published by iSmithers Rapra Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Science categories.
This book deals with the application of spectroscopic techniques for characterisation of chemical and physical structures in viscoelastic materials, such as unvulcanised elastomers and their vulcanisates, various rubbery materials and some plastics, which when blended with particular additives (plasticisers) behave like rubbers. Analysis of the rubbery materials is complicated by the fact that rubbery products, such as tyres, tubes, seals, V-belts and hoses, contain in the rubbery matrix a significant amount of various compounds, i.e., fillers, vulcanising agents, antioxidants and plasticisers. Due to the complex composition, no single technique can provide a good understanding of the effect of chemical and physical structures on the functional properties of rubbery materials. Thus spectroscopy has become a powerful tool for the determination of polymer structures. The most comprehensive information on chemical and physical structures in relation to material properties can be obtained by using a combination of macroscopic techniques and methods that provide information on the molecular level. frequently used for analysis of rubbery materials, i.e., various methods of nuclear magnetic resonance (NMR) and optical spectroscopy. The main objective of this present book is to discuss a wide range of applications of the spectroscopic techniques for the analysis of rubbery materials. The book brings together the various spectroscopic techniques for obtaining the following information: chemical structure of rubbery materials, network structure analysis, heterogeneity of rubbery materials, physical properties of rubbery materials, functional properties and stability of rubbery materials, processing of rubbery materials and quality control. The contents of this book are of interest to chemists, physicists, material scientists and technologists who seek a better understanding of rubbery materials.
Review Of Progress In Quantitative Nondestructive Evaluation
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Author : Donald O. Thompson
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Review Of Progress In Quantitative Nondestructive Evaluation written by Donald O. Thompson and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
These Proceedings, consisting of Parts A and B, contain the edited versions of most of the papers presented at the annual Review of Progress in Quantitative Nondestructive Evaluation held at the University of California San Diego, in La Jolla, California on July 19- July 24, 1992. The Review was organized by the Center for NDE at Iowa State University and the Ames Laboratory of the USDOE in cooperation with a number of organizations including the Air Force Wright Laboratory Materials Directorate, the American Society for Nondestructive Testing, the Center for NDE at Johns Hopkins University, the Department of Energy, the Federal Aviation Administration, the National Institute of Standards and Technology, the National Science Foundation IndustrylUniversity Cooperative Research Centers, and the Working Group in Quantitative NDE. This year's Review of Progress in QNDE was attended by approximately 475 participants from the U. S. and many foreign countries who presented over 380 papers. With such a large volume of work to review, the meeting was divided into 36 sessions with as many as four sessions running concurrently. The Review covered all phases of NDE research and development from fundamental investigations to engineering applications or inspection systems, and it included all methods of inspection science from acoustics to x-rays. During the last twenty years, the participants of the Review have contributed to its steady growth. Thanks to their efforts, the Review is today one of the largest and most significant gatherings of NDE researchers and engineers anywhere in the world.
A Complete Introduction To Modern Nmr Spectroscopy
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Author : Roger S. Macomber
language : en
Publisher: John Wiley & Sons
Release Date : 1997-12-23
A Complete Introduction To Modern Nmr Spectroscopy written by Roger S. Macomber and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-12-23 with Science categories.
Clear, accessible coverage of modern NMR spectroscopy-for students and professionals in many fields of science Nuclear magnetic resonance (NMR) spectroscopy has made quantum leaps in the last decade, becoming a staple tool in such divergent fields as chemistry, physics, materials science, biology, and medicine. That is why it is essential that scientists working in these areas be fully conversant with current NMR theory and practice. This down-to-basics text offers a comprehensive, up-to-date treatment of the fundamentals of NMR spectroscopy. Using a straightforward approach that develops all concepts from a rudimentary level without using heavy mathematics, it gives readers the knowledge they need to solve any molecular structure problem from a complete set of NMR data. Topics are illustrated throughout with hundreds of figures and actual spectra. Chapter-end summaries and review problems with answers are included to help reinforce and test understanding of key material. From NMR studies of biologically important molecules to magnetic resonance imaging, this book serves as an excellent all-around primer on NMR spectroscopic analysis.
Official Gazette Of The United States Patent And Trademark Office
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Author :
language : en
Publisher:
Release Date : 2000
Official Gazette Of The United States Patent And Trademark Office written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Patents categories.