发布求助
文献互助 智能选刊 最新文献

Journal of Magnetic Resonance (1969)最新文献

筛选
英文 中文
Fast-scan magnetic resonance, principles and applications 快速扫描磁共振，原理和应用
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90072-F
W.S.B
{"title":"Fast-scan magnetic resonance, principles and applications","authors":"W.S.B","doi":"10.1016/0022-2364(92)90072-F","DOIUrl":"10.1016/0022-2364(92)90072-F","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Page 632"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90072-F","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53145930","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: 90
A transmitter modification which provides increased sensitivity for homonuclear decoupling experiments 一种改进的发射机，为同核解耦实验提供了更高的灵敏度
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90061-B
Robert W Dykstra
{"title":"A transmitter modification which provides increased sensitivity for homonuclear decoupling experiments","authors":"Robert W Dykstra","doi":"10.1016/0022-2364(92)90061-B","DOIUrl":"10.1016/0022-2364(92)90061-B","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Pages 571-574"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90061-B","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79930294","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: 1
Bimodal loop-gap resonator 双峰环隙谐振器
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90055-C
A.I Tsapin , James S Hyde, W Froncisz
{"title":"Bimodal loop-gap resonator","authors":"A.I Tsapin ,&nbsp;James S Hyde,&nbsp;W Froncisz","doi":"10.1016/0022-2364(92)90055-C","DOIUrl":"10.1016/0022-2364(92)90055-C","url":null,"abstract":"<div><p>A bimodal loop-gap resonator for electron-electron double resonance at X band is described. Considerable detail is given on frequency tuning; in one of the geometries described, a total tuning range of 500 MHz in the difference of the resonant frequencies of the two modes was achieved. The hypothesis is made that bimodal loop-gap resonators, because of their relatively low <em>Q</em> values, offer opportunities to arrive at structures that are more practical than bimodal cavities for routine EPR use. Data appear to support this hypothesis.</p></div>","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Pages 484-490"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90055-C","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88431847","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: 19
Cumulative author index volumes 96–100 累计作者索引卷96-100
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90075-I
{"title":"Cumulative author index volumes 96–100","authors":"","doi":"10.1016/0022-2364(92)90075-I","DOIUrl":"https://doi.org/10.1016/0022-2364(92)90075-I","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Pages 637-644"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90075-I","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136545213","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: 0
Cumulative subject index—1992 volumes 96–100 累积主题索引- 1992年第96-100卷
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90076-J
{"title":"Cumulative subject index—1992 volumes 96–100","authors":"","doi":"10.1016/0022-2364(92)90076-J","DOIUrl":"https://doi.org/10.1016/0022-2364(92)90076-J","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Pages 645-681"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90076-J","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136545242","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: 0
Suppression of artifacts in phase-sensitive COSY 相敏COSY中伪影的抑制
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90054-B
Christopher J Turner , William C Hutton
{"title":"Suppression of artifacts in phase-sensitive COSY","authors":"Christopher J Turner ,&nbsp;William C Hutton","doi":"10.1016/0022-2364(92)90054-B","DOIUrl":"10.1016/0022-2364(92)90054-B","url":null,"abstract":"<div><p>High repetition rates generate systematic errors in phase-sensitive COSY spectra because incomplete relaxation allows magnetization from one transient to carry over and interfere with the next. The resultant artifacts appear at integral multiples of the resonance offset in the <em>F</em><sub>1</sub>, dimension. Product-operator calculations are used to predict permutations of the RF phase cycle in which these artifacts are canceled. The success of these permutations is tested experimentally. It is shown that the axial-peak suppression and dummy transients are vital for the suppression of repetition-rate artifacts, but that quadrature-image suppression is irrelevant. The best permutations of the phase cycle reduce repetition-rate artifacts to about 1% of their parent peaks when recycle delays three times less than the longitudinal relaxation time are used.</p></div>","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Pages 469-483"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90054-B","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72982433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
13C-detected 1H dipolar magic-angle-spinning nmr experiments with isotropic mixing 各向同性混合13c探测1H偶极魔角自旋核磁共振实验
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90057-E
Atsushi Kubo, Charles A McDowell
{"title":"13C-detected 1H dipolar magic-angle-spinning nmr experiments with isotropic mixing","authors":"Atsushi Kubo,&nbsp;Charles A McDowell","doi":"10.1016/0022-2364(92)90057-E","DOIUrl":"10.1016/0022-2364(92)90057-E","url":null,"abstract":"<div><p>Cross polarization using the WIM-24 (windowless isotropic mixing) pulse sequence and also <sup>13</sup>C-detected <sup>1</sup>H dipolar magic-angle-spinning nuclear magnetic resonance employing the WIM-24 pulse sequence during the mixing period on a sample of the urea tridecane inclusion compound was investigated. Numerical calculations of the theoretically expected spectra were performed, using equations derived by two methods: (l) from average Hamiltonian theory and (2) the time-evolution operator obtained by multiplying together the instantaneous time-evolution operators (the multistep method). In comparisons of the calculated <sup>13</sup>C-detected <sup>1</sup>H dipolar MAS NMR spectra from these two methods with the experimental spectra, quantitative agreement was found only with the results from the multistep method. The effects of errors in the pulse phases and amplitude of the WIM-24 pulse sequence were investigated by computer simulations based on equations derived from the multistep method. Although the WIM-24 cross-polarization curve was changed significantly by the presence of 2° errors of the pulse phases, or 10% errors in the pulse amplitudes, the <sup>13</sup>C-detected <sup>1</sup>H dipolar MAS NMR spectra obtained by using the WIM24 mixing were found to be rather insensitive to those pulse imperfections. Cross-polarization curves were also calculated for the WALTZ-4 pulse sequence applied synchronously to both the <sup>13</sup>C and the <sup>1</sup>H channels during the mixing period to study rotational resonance effects. The calculations were performed for dipolar and J mixing. The results show that the WALTZ-4 sequence couples with the sample rotation more intensely than does the WIM-24 sequence.</p></div>","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Pages 517-537"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90057-E","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84790497","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: 7
Instrumental techniques for low-temperature solid-state NMR studies of peptides and proteins 多肽和蛋白质低温固体核磁共振研究的仪器技术
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90059-G
R McNamara, C.H Wu, S.J Opella
{"title":"Instrumental techniques for low-temperature solid-state NMR studies of peptides and proteins","authors":"R McNamara,&nbsp;C.H Wu,&nbsp;S.J Opella","doi":"10.1016/0022-2364(92)90059-G","DOIUrl":"10.1016/0022-2364(92)90059-G","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Pages 559-566"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90059-G","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82410851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
NMR, basic principles and progress, vol. 23 核磁共振，基本原理与进展，第23卷
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90071-E
W.S.B
{"title":"NMR, basic principles and progress, vol. 23","authors":"W.S.B","doi":"10.1016/0022-2364(92)90071-E","DOIUrl":"https://doi.org/10.1016/0022-2364(92)90071-E","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Page 631"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90071-E","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136532178","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: 0
Suppression of the direct peaks in two-dimensional 15N-Edited NOESY Experiments of Proteins with Hetero-CORN 异玉米蛋白二维15n编辑NOESY实验中直接峰的抑制
Journal of Magnetic Resonance (1969) Pub Date : 1992-12-01 DOI: 10.1016/0022-2364(92)90062-C
Claudio Dalvit, Günter Bovermann, Klaus Memmert, Lukas Oberer, Hans Widmer, Mauro Zurini
{"title":"Suppression of the direct peaks in two-dimensional 15N-Edited NOESY Experiments of Proteins with Hetero-CORN","authors":"Claudio Dalvit,&nbsp;Günter Bovermann,&nbsp;Klaus Memmert,&nbsp;Lukas Oberer,&nbsp;Hans Widmer,&nbsp;Mauro Zurini","doi":"10.1016/0022-2364(92)90062-C","DOIUrl":"10.1016/0022-2364(92)90062-C","url":null,"abstract":"","PeriodicalId":100800,"journal":{"name":"Journal of Magnetic Resonance (1969)","volume":"100 3","pages":"Pages 575-580"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-2364(92)90062-C","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75646287","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: 0
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信