We have carried out a series of small scale collisional N-body calculations of single-mass star clusters to investigate the dependence of the lifetime of star clusters on their initial parameters. Our models move through an external galaxy potential with a logarithmic density profile and they are limited by a cut-off radius. In order to find scaling relations between the lifetime of star cluste...

in this study, we have investigated radius dependence of hydrogen storage within armchair (n,n) single walled carbon nanotubes (swcnt) in a square arrays. to this aim, we have employed equilibrium molecular dynamics (md) simulation. our simulations results reveal that radius of carbon nanotubes are an important and influent factor in hydrogen distribution inside carbon nanotubes and consequentl...

the purpose of this paper is to analyze the utility operating radius and service on city parks in ardabil neighborhood, local, regional and urban level, to investigate the relationship between the distribution of these parks with water levels in the city of ardabil, including shorabil lake and balyqlv river and reviews for distribution park. the data and information used by documentary. to anal...

اثرات ویرانگر بلایای طبیعی، اهمیت لجستیک و برنامه‌ریزی منابع انسانی را در مراحل قبل بعد از بحران نشان می‌دهد. هنگام بروز به ‌منظور امدادرسانی سریع، شبکه سلسله ‌مراتبی سلامت که شامل درمانگاه‌ها بیمارستان‌ها است، فعال می‌شود. این پژوهش با استفاده مدل ریاضی مختلط عدد صحیح درنظرگرفتن موقعیت فعلی درمانگاه‌ها، مکان‌های بهینه‌ای عنوان «مراکز درمان موقت» تعیین نحوه تخصیص بهینه مصدومان ناحیه‌های شهری مر...