نتایج جستجو برای: project echo
تعداد نتایج: 277421 فیلتر نتایج به سال:
hepatomegaly, decrease in the liver paranchymal echo and increase in the gallbladder wall thickness has been shown in acute viral hepatitis. the present study was done to determine sonographic changes in acute viral hepatitis. we performed liver and bile ducts sonography and specific tests on 42 patients (mean age: 31.5 and 61% male) with acute viral hepatitis. gallbladder wall thickness was se...
In Project HeartBeat!, a longitudinal study of cardiovascular disease risk factors in healthy children and adolescents, 3 samples of 40, 80, and 182 echocardiograms, respectively, were randomly selected and reread to evaluate intraobserver and interobserver variabilities and comparability between measurements of field echocardiographic technicians and reference readings at Texas Children's Hosp...
In Project HeartBeat!, a longitudinal study of cardiovascular disease risk factors in healthy children and adolescents, 3 samples of 40, 80, and 182 echocardiograms, respectively, were randomly selected and reread to evaluate intraobserver and interobserver variabilities and comparability between measurements of field echocardiographic technicians and reference readings at Texas Children’s Hosp...
background: evaluation of herbicide pollution in aquatic environments needs the great concern and the most important echo-pollutant effects of herbicides are related to their effects on non target aquatic organisms. native fish can serve as a proper bio-indicator for evaluation of pollution on aquatic ecosystems. objectives: to find environmentally friendly herbicides, in this study the acute ...
introduction contrast-enhanced fluid-attenuated inversion recovery (flair) is one of the mri sequences that can be used for detection and evaluation of pathological changes in the brain. in this work, we have studied the effect of different echo times (te) on the maximum relationship between signal intensity and concentration of the contrast agent using the flair sequence. materials and methods...
introduction echo-planar imaging (epi) is a group of fast data acquisition methods commonly used in fmri studies. it acquires multiple image lines in k-space after a single excitation, which leads to a very short scan time. a well-known problem with epi is that it is more sensitive to distortions due to the used encoding scheme. source of distortion is inhomogeneity in the static b0 field that ...
انسان نقشی ژرف و شگرف بر رفتار اقلیم دارد. افزایش جمعیت و رشد صنایع و مصرف بیش ازحد سوخت¬های فسیلی و جنگل¬زدایی و ... از عوامل بسیار موثر در افزایش گازهای گلخانه¬ای و تغییرات دمای کره زمین و در پی آن تغییرات اقلیمی می¬باشند. تحقیق حاضر برای پیش¬بینی و ارزیابی تغییرات دمای دشت اردبیل در حالت افزایش گازهای گلخانه¬ای و با استفاده از مدل ترکیبی magicc-scengen با استفاده از دو مدل گردش عمومی جو ccsm...
Project ECHO: a model for complex, chronic care in the Pacific Northwest region of the United States
in this paper a new method for nondestructive testing or nondestructive evaluation is proposed for glass-epoxy composite. for this purpose, impact-echo is used to evaluate the properties of composite materials, detecting internal defects and thickness measurement. in the impact-echo method a steel ball impacts on a composite plate and generates stress waves or p-waves which will be transferred ...
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