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تعداد نتایج: 12416756 فیلتر نتایج به سال:
copper extraction from heap 3 low grade ore at sarchechmeh is limited due to its mixed composition (copper oxide and sulphide minerals). changing this heap to a bioheap could improve the copper recovery.
uncertainty in the financial market will be driven by underlying brownian motions, while the assets are assumed to be general stochastic processes adapted to the filtration of the brownian motions. the goal of this study is to calculate the accumulated wealth in order to optimize the expected terminal value using a suitable utility function. this thesis introduced the lim-wong’s benchmark fun...
32 Although Escherichia coli (E. coli) typically colonize the intestinal tract and vagina 33 of the giant pandas, it has caused enteric and systemic disease in the giant pandas 34 and greatly impact the health and survival of this endangered species. In order to 35 understand the distribution and characteristics of E. coli from giant pandas, 67 fecal 36 and 30 vaginal E. coli isolates from 21 g...
acknowledge the importance of e-commerce to their countries and to survival of their businesses and in creating and encouraging an atmosphere for the wide adoption and success of e-commerce in the long term. the investment for implementing e-commerce in the public sector is one of the areas which is focused in government‘s action plan for cross-disciplinary it development and e-readiness in go...
with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...
The synthesis of novel acetal thia-cage compounds has been accomplished by the direct substitution for the oxygen atom by the sulfur atom in the reaction of the acetal groups of oxa-cages with Lawesson reagent (LR). Reaction of the tetraoxa-cage compound 2 with LR in dichloromethane at 25 degrees C sequentially gave the monothia-, dithia-, trithia-, and tetrathia-cage compounds 3, 6, 7, and 9. ...
B. I. Abelev,9 M. M. Aggarwal,30 Z. Ahammed,45 B. D. Anderson,20 D. Arkhipkin,13 G. S. Averichev,12 Y. Bai,28 J. Balewski,17 O. Barannikova,9 L. S. Barnby,2 J. Baudot,18 S. Baumgart,50 V. V. Belaga,12 A. Bellingeri-Laurikainen,40 R. Bellwied,48 F. Benedosso,28 R. R. Betts,9 S. Bhardwaj,35 A. Bhasin,19 A. K. Bhati,30 H. Bichsel,47 J. Bielcik,50 J. Bielcikova,50 L. C. Bland,3 S.-L. Blyth,22 M. Bo...
the author intend to by studying the historical causes of the appearance of the novation in the west and explanation of its legal nature from past to present of french law, proves on the one hand that the novation does not extracted from the french civil code and in the shiite jurisprudence with quite similar terms even before the enactment of iranian civil code, was considered by the shiite su...
this study was an attempt to investigate the effect of teaching meta cognitive strategies on iranian intermediate efl students speaking proficiency. in this study the researcher has employed metacognitive strategies taken from brown (2000) to teach speaking strategies to number of participants. the participants were intermediate students of shokouh language institute; they were divided into an ...
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