نتایج جستجو برای: الگوی ms ar
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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 ...
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...
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...
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...
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...
(+)-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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