نتایج جستجو برای: coil and phase to phase

تعداد نتایج: 18378229  

2009
C. P. Bidinosti C-Y. Liu S. B. King

INTRODUCTION Transmit array spatial encoding (TRASE) is a novel MRI technique that utilizes B1-field phase gradients as the means for traversing k-space [1-3]. This method allows MRI to be performed without the usual application of B0-field amplitude gradients, thereby possibly eliminating the equipment, complexity, power consumption and acoustic noise associated with traditional static-field g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

the changes in todays world organization, to the extent that instability can be characterized with the most stable organizations called this afternoon. if you ever change management component, an additional value to the organization was considered, today, these elements become the foundation the organization is survival. the definition of the entrepreneur to identify opportunities to exploit a...

Journal: :journal of chemical and petroleum engineering 2011
hozhabr sohbat zadeh hosein abolghasemi mohammad ghannadi maragheh amir khacpai

in this paper, we studied effect of different parameters including density, viscosity, interfacial tension and solute transfer concentration on phase inversion hold-up. the results showed that change in phase density ratio had no effect on phase inversion hold-up. it also disclosed that the phase viscosity ratio was the most effective parameter affecting phase inversion hold-up and each phase h...

Journal: :iranian biomedical journal 0
آمینا کریمی نیا amina kariminia هایده دارابی haideh darabi عبدالحسین کیهانی abdul hossein keyhani محمد حسین علیمحمدیان mohammad hossein alimohammadian

the early cytokines production in response to live logarithmic and stationary phase promastigotes of leishmania major was examined on the peripheral blood cells of the healthy individuals. whole blood cultures were stimulated by either logarithmic or stationary phase promastigotes. ifn- and il-10 productions were assessed by specific sandwich elisa. the results showed that the logarithmic prom...

Journal: :international journal of nanoscience and nanotechnology 2015
m. ramazani m. farahmandjou t.p. firoozabadi

nano-sized titanium dioxide tio2 powder was prepared by new wet chemical route from its precursor titanium (iv) chloride (ticl4) as precursor with isopropoxy alcohol in presence of nitric acid under ambient condition. their morphologies, phase compositions and components of the tio2 nanoparticles were characterized by transmission electron microscopy (tem), field emission scanning electron micr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده مهندسی علوم آب 1393

drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...

Journal: :The Journal of chemical physics 2010
Yongjoo Kim Alfredo Alexander-Katz

We investigate the self-assembly of symmetric disk-coil molecules using Monte Carlo simulations in the NPT ensemble. Our molecules are composed of a planar disk (head) that is covalently bonded to a single coil (tail), and can be regarded as disk-coil copolymers. For this system, we observe a variety of phases depending on the temperature and the effective interactions between the disk and coil...

Journal: :The Journal of chemical physics 2015
Artem Badasyan Yevgeni Sh Mamasakhlisov Rudolf Podgornik V Adrian Parsegian

We analyze a model statistical description of the polypeptide chain helix-coil transition, where we take into account the specificity of its primary sequence, as quantified by the phase space volume ratio of the number of all accessible states to the number corresponding to a helical conformation. The resulting transition phase diagram is then juxtaposed with the unusual behavior of the seconda...

2008
T. Çukur B. A. Hargreaves D. G. Nishimura

Introduction: Phase-sensitive (PS) SSFP [1,2] is an efficient fat/water separation method, successfully used in several applications including angiography [1], musculoskeletal [3] and abdominal [4] imaging. It generates and detects a 180 phase-difference between fat and water. In previous work, water images reconstructed from individual coils with PSSSFP were combined [4,5]. However, abrupt spa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1388

the present study set out (a) to examine the categories of pedagogical knowledge related to the act of teaching of novice and experienced teachers as gleaned from their verbal report of what they were thinking about while teaching and (b) to compare the categories of pedagogical knowledge of novice and experienced teachers. the aim of comparing these two groups of teachers was to see whether di...

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