نتایج جستجو برای: main caving span
تعداد نتایج: 633349 فیلتر نتایج به سال:
Thalassemia is one of the most common genetic disorders, worldwide.Beta-Thalassemia Major (BTM) is the most severe type, which reduces lifeexpectancy and quality of life. In this study, we searched the related keywords to subject from 1996-2019 in the Medline and Web of Science databases, therefore found 250 articles. Moreover, we categorized them into the studies on blood transfusions in...
a reinforced concrete member in which the total span or shear span is especially small in relation to its depth is called a deep beam. in this study, a new approach based on the adaptive neural fuzzy inference system (anfis) is used to predict the shear strength of reinforced concrete (rc) deep beams. a constitutive relationship was obtained correlating the ultimate load with seven mechanical a...
Based on the problem of large gas emission and serious accumulation in upper corner intensive fully mechanized caving face, taking face Wangjialing Coal Mine Hedong as research object, main sources extremely mining with low permeability content were studied. The methods extraction by inserting (burying) pipe directional drilling adopted carried out. application engineering practice comparative ...
Background: The skin is among the main tissues affected bySulfur Mustard (SM) in chemical attacks. Iranian researchershave performed extensive studies on the exposed victims andhave reported a wide spectrum of information in this field. Themain objective of this study was to develop a comprehensive<sp...
In the process of coal seam mining, there are often hard thick key layers in overlying strata. Due to high strength and good integrity layer, after layer is broken, strata will collapse lose stability a large area, which very easy induce dynamic disasters such as rock burst, mine earthquake, wall caving, roof slab caving. Aiming at working face, response under strong earthquake induced by break...
Background It is recommended for mothers to start breastfeeding their infants within the first hour after birth and exclusively breastfeed them for the first 6 months of their life. Exclusive breastfeeding (EBF) has both short- and long-term benefits for both mother and infant. Main objective of this study was to establish the determinant...
Using fMRI, we investigated neural substrates for focusing attention in working memory. To explore this focusing effect, two kinds of reading span test (RST), focused and nonfocused, were performed. In the focused RST (F-RST), the target word to be maintained was the focus word in the sentence. In the nonfocused RST (NF-RST), the target word was not the focus word in the sentence. In both RST c...
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