MRI of fast-relaxing spins
نویسندگان
چکیده
منابع مشابه
Fast Incomplete Decoherence of Nuclear Spins in Quantum Hall Ferromagnet
A scenario of quantum computing process based on the manipulation of a large number of nuclear spins in Quantum Hall (QH) ferromagnet is presented. It is found that vacuum quantum fluctuations in the QH ferromagnetic ground state at filling factor ν = 1 , associated with the virtual excitations of spin waves, lead to fast incomplete decoherence of the nuclear spins. A fundamental upper bound on...
متن کاملACID Properties Need Fast Relief: Relaxing Consistency Using Epsilon Serializability
Epsilon Serializability (ESR) is a generalization of classic serializability (SR). ESR supports more concurrency and autonomy than SR by allowing a bounded amount of inconsistency in transactions that can tolerate it. ESR has three main advantages over previous \weak consistency" models: (1) ESR is a general framework, applicable to a wide range of application semantics; (2) ESR is upward-compa...
متن کاملAnisotropy barrier reduction in fast-relaxing Mn12 single-molecule magnets
An angle-swept high-frequency electron paramagnetic resonance HFEPR technique is described that facilitates efficient in situ alignment of single-crystal samples containing low-symmetry magnetic species such as single-molecule magnets SMMs . This cavity-based technique involves recording HFEPR spectra at fixed frequency and field, while sweeping the applied field orientation. The method is appl...
متن کاملdegradation of oil impregnated paper insulation under influence of repetitive fast high voltage impulses
در طی سالهای اخیراستفاده ازمنابع انرژی تجدید پذیر در شبکه های مدرن بنا به دلایل زیست محیطی و اقتصادی به طور گسترده استفاده شده است همچون نیروگاههای بادی و خورشیدی .ولتاژتولیدی این نیروگاهها اغلب به فرم dc می باشد وادوات الکترونیک قدرت به عنوان مبدل و پل بین شکل موج dc وac استفاده می شوند.این پروسه باعث ایجاد پالسهایی برروی شکل موج خروجی می شود که می تواند وارد تجهیزات قدرت همچون ترانسفورماتور ی...
15 صفحه اولFast Multi-contrast MRI Reconstruction
Multi-contrast magnetic resonance imaging (MRI) is a useful technique to aid clinical diagnosis. This paper proposes an efficient algorithm to jointly reconstruct multiple T1/T2-weighted images of the same anatomical cross section from partially sampled k-space data. The joint reconstruction problem is formulated as minimizing a linear combination of three terms, corresponding to a least square...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Magnetic Resonance
سال: 2013
ISSN: 1090-7807
DOI: 10.1016/j.jmr.2013.01.011