نتایج جستجو برای: k20
تعداد نتایج: 220 فیلتر نتایج به سال:
Determining the driving forces of economic growth has a paramount importance in economic studies. Early studies suggested physical capital accumulation as the main driving force of growth. However, the recent studies try to resolve the flaws of neo classical school on growth by expanding the concept of capital equipment and machinery to a wider range of human knowledge, on one hand, and in...
Sequence alignment lies at heart of the bioinformatics. The Smith-Waterman algorithm is one of the key sequence search algorithms and has gained popularity due to improved implementations and rapidly increasing compute power. Recently, the Smith-Waterman algorithm has been successfully mapped onto the emerging general-purpose graphics processing units (GPUs). In this paper, we focused on how to...
Cross-resistance between bacteriophages and colicins was studied using collections of bacteriophage- and colicin-resistant mutants of Escherichia coli K-12. No new examples were found of highly specific one-to-one cross-resistance of the type suggestive of common receptors. However, several groups of mutants showed tolerance to colicins and resistance to bacteriophages. Mutants known to be very...
Abstraet--Zeolites having the structures of phillipsite, merlinoite, and gobbinsite were synthesized from clear solutions at 80~ in the system Na20-K20-Ai203-SiO2-H20 and their morphologies, cell parameters, and compositions determined. At 3.5 M silica concentration, the formation of merlinoite (synthetic zeolite W) is favored over the formation of phillipsite (synthetic zeolite ZK-19) by solut...
از اندرزنامه ای که به نام اندرز اوشنر دانا مشهور است تاکنون پنج نسخه دست نویس یافت شده (k20، p33، m90، r410 و c165)، که همگی مضمونی یکسان دارند، به جز آن که دست نوشته های r410 و c165 فقط مشتمل بر 22 بند از سه دست نوشته دیگر است. در این مقاله، دست نوشته ای نو منسوب به اوشنر دانا معرفی می شود (دست نوشته td26) که با پنج دست نوشته دیگر بسیار متفاوت است. برخی از اندرزهای متن پیشین را ندارد و تعدادی ...
The different SPH codes developed within the SPH community are reaching a sophisticated state of maturity in terms of improved formulations and validated calibrations for specific applications. However, one of the main drawbacks of the SPH method is still its high computational cost when real engineering problems must be studied using a huge number of particles. A parallel SPH scheme using hete...
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