نتایج جستجو برای: coil and phase to phase

تعداد نتایج: 18378229  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده کشاورزی 1388

از آنجا که چند شکلی تک نوکلئوتیدی (snp) مسئول 90 درصد تفاوت در بین گونه ها است، امروزه به میزان زیادی جهت بررسی تنوع زیستی در حیوانات استفاده می شود. به علت اینکهsnp ها دارای تنوع محدودی هستند بیشتر از هاپلوتیپ جهت بررسی این گونه تنوع ها استفاده می گردد. تعیین هاپلوتیپ در آزمایشگاه بسیار هزینه بر است، بنابراین در بیشتر موارد با استفاده از داده های ژنوتیپ، هاپلوتیپ را استنباط می کنند. الگوریتم ه...

Journal: :مهندسی برق و الکترونیک ایران 0
e. babaei s. h. hosseini g. b. gharehpetian

in this paper, a new topology is proposed for three-phase to single-phase matrix converters, where more voltage levels are produced in the output in comparison with the conventional topologies. in addition, a new control method based on minimum error between the generated and the desired output voltages is proposed for three-phase to single-phase matrix converters. in the proposed control metho...

Journal: :international journal of iron & steel society of iran 2009
f. forouzan a. najafizadeh a. kermanpur a. hedayati

an artificial neural network (ann) model is developed for the analysis, simulation, and prediction of the austenite reversion in the thermo-mechanical treatment of 304l austenitic stainless steel. the results of the ann model are in good agreement with the experimental data. the model is used to predict an appropriate annealing condition for austenite reversion through the martensite to austeni...

Journal: :Materials today communications 2021

Dual-phase steels are generally used in the car industry due to high tensile strength and good formability, which obtained by a mixture of bainite ferrite phases. This microstructure is achieved through slow rate coil cooling. However, manufacturing dual-phase introduces various challenges such as instability cold rolling process. An important factor affecting this non-uniform cooling hot rolle...

Journal: :Magnetic resonance in medicine 2017
Martin Uecker Michael Lustig

PURPOSE To develop an ESPIRiT-based method to estimate coil sensitivities with image phase as a building block for efficient and robust image reconstruction with phase constraints. THEORY AND METHODS ESPIRiT is a new framework for calibration of the coil sensitivities and reconstruction in parallel magnetic resonance imaging. Applying ESPIRiT to a combined set of physical and virtual conjugat...

Journal: :iranian journal of neonatology 0
mehri jamilian associated professor, department of obstetrics and gynecology, taleghani hospital, arak university of medical sciences, arak, iran maryam karamali assistant professor, gynecologist, department of obstetrics and gynecology, arak university of medical sciences, arak, iran bahman sadeghi assistant professor, department of social medicine, arak university of medical sciences, arak, iran maasoumeh ghazi mirsaeed assistant professor, gynecologist, department of obstetrics and gynecology, arak university of medical sciences, arak, iran

background: previous studies reported that neonatal and maternal complications as well as duration of labor could be diminished through labor management. therefore, we aimed to evaluate the effect of intramuscular (im) administration of atropine and hyoscine combination on labor progress and maternal and neonatal outcomes in primigravid women admitted to taleghani hospital of arak, iran. method...

Journal: :Journal of magnetic resonance imaging : JMRI 2016
Ozgur Yilmaz Emine Ulku Saritas Tolga Çukur

PURPOSE To propose and assess a method to improve the reliability of phase-sensitive fat-water separation for phased-array balanced steady-state free precession (bSSFP) acquisitions. Phase-sensitive steady-state free precession (PS-SSFP) is an efficient fat-water separation technique that detects the phase difference between neighboring bands in the bSSFP magnetization profile. However, large s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده علوم پایه 1390

چکیده پلاتین، فلزی نجیب، پایدار و گران قیمت با خاصیت کاتالیزوری زیاد است که کاربرد های صنعتی فراوانی دارد. کمپلکس های پلاتین(ii) به عنوان دارو های ضد سرطان شناخته شدند و در شیمی درمانی بیماران سرطانی کاربرد دارند. خاصیت کاتالیزوری و عملکرد گزینشی پلاتین مستقیماً به اندازه و- شکل ماده ی پلاتینی بستگی دارد. بعضی از نانو ذرات فلزی در سطح مشترک مایع- مایع سنتز شده اند، اما نانو ساختار های پلاتین ب...

2010
A. Yamamoto M. Kanagaki T. Okada S. Kozawa K. Sakai K. Togashi

BACKGROUND AND PURPOSE 3-T MRI has been introduced into clinical examinations and is widely used [1]. High-resolution imaging is often essential as a clinical study for the diagnosis of diseases that show only subtle changes in the brain [2]. Since the 32-channel phased-array head coil offers a superb signal-to-noise ratio (SNR), high-quality images can be obtained when used with a 3-T MRI scan...

In every tunnel boring machine (TBM) tunneling project, there is an initial low production phase so-called the Learning Phase Period (LPP), in which low utilization is experienced and the operational parameters are adjusted to match the working conditions. LPP can be crucial in scheduling and evaluating the final project time and cost, especially for short tunnels for which it may constitute a ...

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