نتایج جستجو برای: nanopearlitic structure
تعداد نتایج: 1567880 فیلتر نتایج به سال:
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undoubtedly, information technology (it) has undergone extensive developments in various social and economic spheres; its effect on human society is in such a way that the world today is referred as information society. besides, information technology, attributed as the main agent of global change, is to achieve meta- organization purposes. it also pertains to appropriate information formulated...
vermiculture is the culture of earthworms. the goal is to continually increase the number of worms in order to obtain a sustainable harvest. the worms are either used to expand a vermicomposting operation or sold to customers who use them for the same or other purposes. vermicomposting is the process by which worms are used to convert organic materials (usually wastes) into a humus-like materia...
one of the reasons that companies avoid paying their taxes is that they choose to use debts for their funding. in other words, tax saving, an activity of companies to avoid taxpaying, can be used to finance corporate projects. furthermore, since institutional owners are more inclined to supervise, they may shrink managerial behaviors to avoid taxpaying. in this study, institutional owners’ supe...
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objectives the overall goal of this study was to carry out a set of comparative analyses of arsr gene in plasmid r773 and bacterial chromosome from escherichia coli bl-21(de3). methods pdb and ncbi databases and chimera, mega4, clc main workbench software and 3d-jigsaw and embl-ebi servers were applied to perform this study. by using these software and servers, multiple analyses including deter...
it is well known that the chemical behavior of a compound is dependent upon the structure of itsmolecules. quantitative structure – activity relationship (qsar) studies and quantitative structure –property relationship (qspr) studies are active areas of chemical research that focus on the nature ofthis dependency. topological indices are the numerical value associated with chemical constitution...
خطر حسابرسی یعنی احتمال خطر این که حسابرس نسبت به صورت های مالی حاوی اشتباه و یا تحریف با اهمیت، نظر حرفه ای نامناسب اظهار کند. قضاوت در مورد سطوح خطر و کنترل آن، از جمله وظایف محوری حسابرسی است. هدف این پژوهش ارائه ی الگوی شناسایی خطر حسابرسی با بهره گیری از ویژگی های بنیادین شرکت ها است. بدین منظور از معیارهای انحراف از استانداردهاوقوانین ،ساختاردارایی ها ،ساختارمالی و ساختار حاکمیت شرکتی جهت...
today, due to qualitative growth and scientific advances, energy, especially electricity is increasingly needed by human society. one of the almost endless and pure energy which have been paid attention over the years is the solar energy. solar cells directly convert solar energy into electrical energy and are one of the main blocks of photovoltaic systems. significant improvement has been made...
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