نتایج جستجو برای: الگوی ms ar

تعداد نتایج: 230216  

Journal: :International Astronomical Union Colloquium 1993

Journal: :Japanese Magazine of Mineralogical and Petrological Sciences 2012

Journal: :Cardiology journal 2008
Agata Duszańska Radosław Lenarczyk Oskar Kowalski Witold Streb Ewa Markowicz-Pawlus Tomasz Kukulski Zbigniew Kalarus

BACKGROUND The impact of radiofrequency current ablation (RFCA) on left ventricular (LV) systolic and diastolic function in patients with atrioventricular nodal re-entrant tachycardia (AVNRT) is not well established yet. METHODS The study group consisted of 25 patients (18 W, mean age 43 +/- 11) with recurrent episodes of AVRT without any concomitant diseases. The control group was formed of ...

Journal: :IEEE Transactions on Antennas and Propagation 2022

A metasurface (MS)-inspired low-profile circularly polarized (CP) slot array with a wide CP band and broadband low radar cross section (RCS) is proposed in this communication. The consists of four element antennas, grounded substrates, sequential-rotated feeding network. In terms radiation performance, the yields resulting from antenna achieved due to polarization conversion property MS-based s...

2009
R. J. Beyers Y. Xu M. Salerno S. S. Berr C. H. Meyer F. H. Epstein

Introduction: An ongoing diagnostic challenge exists in quickly and reliably determining the area at risk (AR) for myocardial infarction (MI): i.e. the volume of potentially salvageable myocardium subtended by a coronary stenosis. T2w cardiac magnetic resonance (CMR) identifies the AR in large mammals by imaging post-ischemic edema. Previous T2w CMR studies have been performed in dogs, pigs and...

2014
J. K. Mansoor Edward S. Schelegle Cristina E. Davis William F. Walby Weixiang Zhao Alexander A. Aksenov Alberto Pasamontes Jennifer Figueroa Roblee Allen

BACKGROUND An important challenge to pulmonary arterial hypertension (PAH) diagnosis and treatment is early detection of occult pulmonary vascular pathology. Symptoms are frequently confused with other disease entities that lead to inappropriate interventions and allow for progression to advanced states of disease. There is a significant need to develop new markers for early disease detection a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1380

در صنایع نیازی وافر به داده های قابل اعتماد خواص فیزیکی یک سری خیلی بزرگ از مواد خالص و یک سری حتی بزرگتر از مخلوطهای آنها وجود دارد. تعداد این سیستمها چنان زیاد است که اندازه گیریهای تجربی کافی نبوده لذا مطلوب از تئوری ضروری است.نیروهای بین مولکولی زیربنای بسیاری از خواص ماکروسکوپی ماده می باشند. از طرف دیگر نتایج تئوریهای سینتیک و مکانیک آماری روابطی را تامین می کنند که توسط آنها می توان خواص...

2003
Xinhua Wan Zhenning Yu Hailiang Zhang Xiaofang Chen Qi-Feng Zhou

(+)-2,5-Bis[4’-((S)-2-methyl butyoxy)phenyl]toluene (3a): 0.048 mol (10 g) 4-[(S)-2-methyl butoxyl]phenylboronic acid dissolved in 20 ml of ethanol is added dropwise to the mixture of 0.02 mol (5 g) of 2,5-dibromotoluene, 0.8 mmol (0.924 g) tetrakis(triphenylphosphine)palladium Suzuki cross-coupling catalyst, 20 ml of benzene, 40 ml of ethanol, and 60 ml of 2M Na2CO3 aqueous solution under argo...

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