نتایج جستجو برای: wma
تعداد نتایج: 386 فیلتر نتایج به سال:
A Life Cycle Assessment (LCA) was undertaken to compare the potential environmental impacts associated with use of Recycled Concrete Aggregate (RCA) as a partial replacement natural aggregates in production Warm Mix Asphalt (WMA), those conventional Hot (HMA). The LCA conducted according ‘cradle-to-laid’ approach, including four pavement phases. Three percentages RCA for coarse WMA were conside...
Utilizing polymers with asphalt mixtures is one solution to improving the performance of mixtures. Warm mixed (WMA) technology has begun be widely used; however, hot (HMA) most common paving procedure worldwide. HMA some side effects, such as increasing emissions exhaust gases, which lead environmental pollution and air energy consumption. Thus, utilizing WMA would help improve mixture performa...
our main objective in the present study was to assess the spatial variation of chemical and physical water properties. prior to the design of groundwater quality monitoring networks, it is essential to investigate the spatial structure of the groundwater quality variables. a case study is presented which used ground water quality observations from groundwater domestic wells in the dameghan, ira...
Methods In all, 320 consecutive patients with suspected or known coronary artery disease underwent DS-MRI, using a standard protocol in a 1.5T MR scanner. Wall motion abnormalities (WMA) and myocardial strain were assessed at baseline and during stress, and outcome data including cardiac deaths, nonfatal myocardial infarctions (“hard events”), and revascularization procedures performed 90 days ...
مخلوطهای آسفالتی گرم (WMA) به عنوان یکی از روشهای رایج تولید آسفالت در صنعت روسازی مورد توجه قرار گرفتهاند. استفاده از این نوع مخلوط مزایای متعددی، از جمله منافع اقتصادی و زیست محیطی دارد. از طرفی دیگر، از جمله نگرانیهای عمدهای که در رابطه با عملکرد مخلوطهای آسفالت گرم وجود دارد، خرابی ترکهای دمای پایین میباشد. در این پژوهش آزمایش بارگذاری خمشی نمونههای نیمدایرهای (SCB) که روشی بر مب...
BACKGROUND This study aims to determine the prognostic accuracy of term MRI in very preterm born (≤32 weeks) or low-birth-weight (≤1500 g) infants for long-term (>18 months) developmental outcomes. METHODS We performed a systematic review searching Central, Medline, Embase, and PsycInfo. Two independent reviewers performed study selection, data extraction, and quality assessment. We documente...
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