翻訳と辞書 Words near each other ・ Pulse-Eight ・ Pulse-frequency modulation ・ Pulse-per-second signal ・ Pulse-position modulation ・ Pulse-swallowing counter ・ Pulse-width modulation ・ PulseAudio ・ Pulsed Accretion ・ Pulsed columns ・ Pulsed DC ・ Pulsed discharge ionization detector ・ Pulsed electromagnetic field therapy ・ Pulsed electron paramagnetic resonance ・ Pulsed energy projectile ・ Pulsed energy weapon ・ Pulsed field gradient ・ Pulsed field magnet ・ Pulsed gas dynamic spray process ・ Pulsed inductive thruster ・ Pulsed laser deposition ・ Pulsed plasma thruster ・ Pulsed power ・ Pulsed Pressure Cavitation Technique ・ Pulsed radiofrequency ・ Pulsed rocket motor ・ Pulsed-field gel electrophoresis ・ Pulsed-power water treatment ・ Pulsedriver ・ Pulsejet ・ Pulseless electrical activity Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pulsed field gradient ： ウィキペディア英語版 Pulsed field gradient A pulsed field gradient is a short, timed pulse with spatial-dependent field intensity. Any gradient is identified by four characteristics: axis, strength, shape and duration. Pulsed field gradient (PFG) techniques are key to magnetic resonance imaging, spatially selective spectroscopy and studies of diffusion via NMR. PFG techniques are widely used as an alternative to phase cycling in modern NMR spectroscopy. ==Common field gradients in NMR== The effect of a uniform magnetic field gradient in the z-direction on spin I, is considered to be a rotation around z-axis by an angle = γIGz; where Gz is the gradient magnitude (along the z-direction) and γI is the gyromagnetic ratio of spin I. It introduces a phase factor to the magnetizations: ''Φ (z,τ) = (γI)(Gz)(τ)'' The time duration τ is in the order of milliseconds. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pulsed field gradient」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.