نتایج جستجو برای: approximately 50 percent
تعداد نتایج: 737106 فیلتر نتایج به سال:
BACKGROUND Studies conducted decades ago described substantial disagreement and errors in physicians' angiographic interpretation of coronary stenosis severity. Despite the potential implications of such findings, no large-scale efforts to measure or improve clinical interpretation were subsequently undertaken. METHODS AND RESULTS We compared clinical interpretation of stenosis severity in co...
in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...
Erklärung Ich erkläre hiermit, die vorliegende Arbeit selbständig verfaßt und keine anderen als die angegebenen Quellen und Hilfsmittel verwendet zu haben. Acknowledgements I would like to thank my advisor, Dr. Kevin Elphinstone for guiding me through this thesis with his lucid analyses and critical comments. Furthermore, I would like to thank my room mates (a.k.a. the " usual back room "), Eac...
2 Ich versichere, dass ich diese Diplomarbeit selbständig verfasst und nur die angegebenen Quellen und Hilfsmittel verwendet habe.
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