نتایج جستجو برای: nuclear magnetic resonancenmr

تعداد نتایج: 553955  

Journal: :Physical review letters 2009
F Aimo S Krämer M Klanjsek M Horvatić C Berthier H Kikuchi

High magnetic field (63,65)Cu NMR spectra were used to determine the local spin polarization in the 1/3 magnetization plateau of azurite, Cu3(CO3)(2)(OH)(2), which is a model system for the distorted diamond antiferromagnetic spin-1/2 chain. The spin part of the hyperfine field of the Cu2 (dimer) sites is found to be field independent, negative and strongly anisotropic, corresponding to approxi...

Journal: :Journal of magnetic resonance 2008
Zhehong Gan Hyung-Tae Kwak Mark Bird Timothy Cross Peter Gor'kov William Brey Kiran Shetty

Resistive and resistive-superconducting hybrid magnets can generate dc magnetic fields much higher than conventional superconducting NMR magnets but the field spatial homogeneity and temporal stability are usually not sufficient for high-resolution NMR experiments. Hardware and technique development addressing these issues are presented for high-resolution NMR at magnetic fields up to 40T. Pass...

Journal: :Biochemistry 2013
Paul J Barrett Jiang Chen Min-Kyu Cho Ji-Hun Kim Zhenwei Lu Sijo Mathew Dungeng Peng Yuanli Song Wade D Van Horn Tiandi Zhuang Frank D Sönnichsen Charles R Sanders

From roughly 1985 through the start of the new millennium, the cutting edge of solution protein nuclear magnetic resonance (NMR) spectroscopy was to a significant extent driven by the aspiration to determine structures. Here we survey recent advances in protein NMR that herald a renaissance in which a number of its most important applications reflect the broad problem-solving capability display...

Journal: :Angewandte Chemie 2015
Xiaobo Qu Maxim Mayzel Jian-Feng Cai Zhong Chen Vladislav Orekhov

Accelerated multi-dimensional NMR spectroscopy is a prerequisite for high-throughput applications, studying short-lived molecular systems and monitoring chemical reactions in real time. Non-uniform sampling is a common approach to reduce the measurement time. Here, a new method for high-quality spectra reconstruction from non-uniformly sampled data is introduced, which is based on recent develo...

Journal: :Progress of Theoretical Physics 1957

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2008

Journal: :Journal of Japan Oil Chemists' Society 1989

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