Concepts in magnetic resonance最新文献

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Illustrating longitudinal (T1) NMR relaxation with a microcomputer 用微机说明纵向(T1)核磁共振弛豫
Concepts in magnetic resonance Pub Date : 1997-01-01 DOI: 10.1002/(SICI)1099-0534(1997)9:3<139::AID-CMR2>3.0.CO;2-#
A. Olivieri
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引用次数: 1
17O chemical shifts 化学位移
Concepts in magnetic resonance Pub Date : 1997-01-01 DOI: 10.1002/(SICI)1099-0534(1997)9:6<435::AID-CMR6>3.0.CO;2-#
D. Traficante
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引用次数: 0
Multidimensional solid-state NMR and polymers 多维固态核磁共振和聚合物
Concepts in magnetic resonance Pub Date : 1997-01-01 DOI: 10.1002/(SICI)1099-0534(1997)9:6<433::AID-CMR5>3.0.CO;2-#
K. Zilm
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引用次数: 171
Spectrum estimation and the Fourier transform in imaging and spectroscopy 成像与光谱学中的光谱估计与傅立叶变换
Concepts in magnetic resonance Pub Date : 1996-01-01 DOI: 10.1002/(SICI)1099-0534(1996)8:5<339::AID-CMR3>3.0.CO;2-#
P. Angelidis
{"title":"Spectrum estimation and the Fourier transform in imaging and spectroscopy","authors":"P. Angelidis","doi":"10.1002/(SICI)1099-0534(1996)8:5<339::AID-CMR3>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/(SICI)1099-0534(1996)8:5<339::AID-CMR3>3.0.CO;2-#","url":null,"abstract":"This work aims at two purposes: tutoring and reference. It is an introductory, concise text for the newcomers to Fourier transform NMR, and it is a reference source for those who are involved in NMR spectroscopy and imaging and who have already made themselves familiar with the concepts of frequency and spectrum. The work attempts to help the reader understand the natural meaning of Fouriertransform theory, beginning with basicconceptsand proceeding to more complicated ones, step by step, covering almost every aspect of interest in the area. It also introduces two new concepts in NMR signal-processing theory: time-frequency representations and the temporal autocorrelation function. New algorithms of spectral estimation and image reconstruction, based on this original material, are proposed. The new techniques fully exploit the special characteristics of the N M R signal. The tutoring material is presented qualitatively, and it includes only fundamental mathematics Throughout the text, an effort is made to explain important concepts in simple terms, usually through examples, so that the introduction of new information flows smoothlyand no extensive spiritual endeavor is required from the reader.","PeriodicalId":89665,"journal":{"name":"Concepts in magnetic resonance","volume":"90 11","pages":"339-381"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1099-0534(1996)8:5<339::AID-CMR3>3.0.CO;2-#","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50678275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Cross-correlations in multispin relaxation 多自旋弛豫中的相互关系
Concepts in magnetic resonance Pub Date : 1996-01-01 DOI: 10.1002/(SICI)1099-0534(1996)8:2<139::AID-CMR4>3.0.CO;2-#
Anil Kumar, P. Madhu
{"title":"Cross-correlations in multispin relaxation","authors":"Anil Kumar, P. Madhu","doi":"10.1002/(SICI)1099-0534(1996)8:2<139::AID-CMR4>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/(SICI)1099-0534(1996)8:2<139::AID-CMR4>3.0.CO;2-#","url":null,"abstract":"Whenever there is more than one mechanism for the relaxation of a spin, there can be cross-terms between these mechanisms. These cross-terms, known as cross-correlations affect both the longitudinal and the transverse relaxation of a spin, as well as the nuclear Overhauser effect (NOE) to the other spins. The major effect of these cross-terms is a differential effect, also known as multiplet effect between various transitions of a spin. The detection of the multiplet effect therefore requires that the various transitions be resolved by J-coupling. A smaller effect is a second-order net effect, which also can influence the various relaxation measurements. This article is a pedagogic review of cross-correlation effects in longitudinal and transverse relaxation and NOE experiments. Representative experiments demonstrating the presence of cross-correlation in the longitudinal and transverse relaxation of a spin are also discussed. © 1996 John Wiley & Sons, Inc.","PeriodicalId":89665,"journal":{"name":"Concepts in magnetic resonance","volume":"136 7","pages":"139-160"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1099-0534(1996)8:2<139::AID-CMR4>3.0.CO;2-#","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50677884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
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