این تز در مقطع دکتری رشته فلسفه و در دانشگاه درکسل امریکا نوشته شده است. تعداد صفحات: 202 ...
In the current work we obtained exact solution for nonlinear free vibration of nanotubes (NTs) with surface effects incorporated to Euler-Bernoulli beam theory and von Karman geometric nonlinearity. We used Jacobi elliptic functions to obtain the nonlinear natural frequencies. Normalized nonlinear natural frequencies and the phase trajectory were studied with the presence of surface effects. This study might be helpful to design NT-based devices in a wide range of applications. ...
In this research, thermal displacement and stress fields in an initially stress-free hollow nanosphere due to constant temperature changes are analyzed according to linear theory of thermoelasticity. Surface effects are considered because of large surface-to-volume ratio in nanoscales. Closed form solutions are derived and results are demonstrated with numerical examples to examine the effects of size and surface energy. It is shown that thermal displacement and stress components are extremely ...
ارزان خرید کنید قیمت تمام محصولات ما ارزانتر از تمام فروشگاه های دیگه است سورس pip camera effects که این سورس افکت های خیلی جالبی به عکس های شما میدهد و همچنین قابلیت اشتراک گذاری نیز دارد و همچنین قابلیت ذخیره در کارت حافظه را داراست،این سورس به زبان جاوا نوشته شده است .وبرای ...
Effects of the combination of axial and shear loading on the behaviour of headed stud steel anchors ...
عنوان مقاله: Effects of cognitive and social factors on system utilization and performance outcomes ترجمه عنوان مقاله: تاثیر عوامل شناختی و اجتماعی بر سیستم بکارگیری و عملکرد مشتریان Abstract: This study examines the effects of cognitive and social factors on system utilization and performanceoutcomes. The literature has paid considerable attention to social influence as a determinant ofindividual behavior. ...
نام کتاب: تاثیرات و عواقب زیست محیطی پساب کارخانجات خمیر و کاغذ تاریخ انتشار: 2004 تعداد صفحات: 598 صفحه ...