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تعداد نتایج: 17243746 فیلتر نتایج به سال:
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 ...
46. Berkman LF, Blumenthal J, Burg M, et al; Enhancing Recovery in Coronary Heart Disease Patients Investigators (ENRICHD). Effects of treating depression and low perceived social support on clinical events after myocardial infarction: the Enhancing Recovery in Coronary Heart Disease Patients (ENRICHD) Randomized Trial. JAMA. 2003;289(23):3106-3116. 47. Freedland KE, Skala JA, Carney RM, et al....
Correspondence and reprint requests should be addressed to: Prof. David A. Sack Executive Director ICDDR,B: Centre for Health and Population Research GPO Box 128, Dhaka 1000 Bangladesh Email: [email protected] Fax: +(880-2) 882 3116 Recent analysis of results of the 1985 vaccine trial in Bangladesh showed that a killed oral cholera vaccine could provide herd protection (1), and this finding shed...
abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...
quality improvement tool. Psychooncology 2012 46. Holland J, Watson M, Dunn J. The IPOS new International Standard of Quality Cancer Care: integrating the psychosocial domain into routine care. Psychooncology 2012, doi:10.1002/ pon.3116 [Epub ahead of print]. 47. Bultz BD, Groff SL, Fitch M et al. Implementing screening for distress, the 6th vital sign: a Canadian strategy for changing practice...
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
Y. Ling, H. Cao,* A. L. Burin, M. A. Ratner, X. Liu, and R. P. H. Chang Department of Physics and Astronomy, Materials Research Center, Northwestern University, Evanston, Illinois 60208-3112 Department of Chemistry, Materials Research Center, Northwestern University, Evanston, Illinois 60208-3113 Department of Materials Science and Engineering, Materials Research Center, Northwestern University...
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