نتایج جستجو برای: mwi
تعداد نتایج: 150 فیلتر نتایج به سال:
This work presents a design and experimental validation of compact ultrawideband (UWB) bowtie antenna balanced-to-unbalanced (balun) circuit for medical microwave imaging (MWI) applications working in the frequency band 1–6 GHz. The UWB balun is perpendicularly attached to planar arms, whose dimensions were miniaturized by rounding edges. reflection coefficient was lower than −12 dB tissues wit...
Abstract Funding Acknowledgements Type of funding sources: None. Speckle-tracking echocardiography (STE)-derived global longitudinal strain (GLS) is considered to be a sensitive marker left ventricular (LV) function in wide variety cardiovascular diseases. Still, evidence suggests that GLS significantly influenced by loading conditions. Myocardial work index (MWI) evaluates myocardial deformati...
A series of new barbituryl/thiobarbituryl substituted organomercurial derivatives 3a-i have been synthesised from pyrimidine derivatives 1a-c and arylmercuric chloride 2a-c over K(2)CO(3) under microwave irradiations (MWI). This solventless synthesis apart from eliminating organic solvent from workup step, also gave improved yield as compared to the conventional heating, with reaction time redu...
This work focuses on developing a 3D microwave imaging (MWI) algorithm based Huygens principle (HP). Specifically, novel, fast MWI device (MammoWave) has been presented and exploited for its capabilities of extending image reconstruction from 2D to 3D. For this purpose, dedicated phantoms containing structured inclusion have prepared with mixtures having different dielectric properties. Phantom...
کنترل شیمیایی علفهای هرز، نگرانی های جدی را از نظر سلامت غذایی و محیط زیست به دنبال دارد که این امر توجه به تکنیکهای مدیریت غیر شیمیاییعلفهای هرز نظیر کشت مخلوط را ضروری تلقی میکند. کشت مخلوط میتواند علفهای هرز را مهار کرده و مصرف علف کشها را در سیستمهای تولیدی کاهش دهد. بنابراین، هدف این مطالعه بررسی اثرات کشت مخلوط باقلا و ذرت و نیز کنترل دستی علف هرز بر عملکرد دانه ذرت و عملکرد کل...
Abstract Background The non-invasive assessment of myocardial work allows to evaluate LV performance by taking into account the effect load. Aim this study was acute and chronic impact percutaneous mitral valve repair (PMVR) on performance, in patients with severe primary regurgitation (PMR). Methods 71 (age: 77±9 years, females: 44%) PMR (effective regurgitant orifice: 0.57±0.31 cm2, volume: 8...
The terrestrial water storage anomaly (TWSA) observed by the Gravity Recovery and Climate Experiment (GRACE) satellite its successor GRACE Follow-On (GRACE-FO) provides a new means for monitoring floods. However, due to coarse temporal resolution of GRACE/GRACE-FO, understanding flood occurrence mechanisms short-term floods are limited. This study utilizes statistical model reconstruct daily TW...
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