نتایج جستجو برای: end conditions

تعداد نتایج: 1214245  

Journal: :iranian journal of numerical analysis and optimization 0
v.i. senashov v.p. shunkov

in this article, we consider some new classes of groups, namely, mp-groups, t0-groups,ø-groups,ø0-groups, groups with finitely embedded involution, which were appeared at the end of twenties century. these classes of infinite groups with finiteness conditions were introduced by v.p. shunkov. we give some review of new results on these classes of groups.

Journal: :International Journal for Simulation and Multidisciplinary Design Optimization 2021

This study demonstrates theoretical approaches useful for practical determination of machining conditions affecting machined surface topography in filleted end milling. Tool orientation is investigated particular. There are dominant processing parameters' optimizations from various perspectives, whereas a few comprehensive strategies have been proposed to determine It also practically scarce di...

Journal: :Journal of the Japan Society for Technology of Plasticity 2014

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1372

a simple, sensitive and selective method for solvent extraction and spectrophotemetric determination of lanthanum (ii) europium (iii), and cerium (iii) is described , the rare earth metals are extracted into chloroform solution of n-phenylbenzohydroxamic acid (pbha) at ph 9-10 various parameters are studied to optimize the extraction conditions. the molar absorptivity is found to increase from ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده علوم 1392

در این رساله، وجود و چندگانگی جواب های مثبت دسته ای از معادلات و دستگاه معادلات دیفرانسیل با مشتقات جزئی غیرخطی با شرط های مرزی همگن دیریکله را بر اساس روش جواب های پایینی-بالایی در دو مفهوم کلاسیک و ضعیف مورد بحث قرار می دهیم. فرض کنید $omega$ دامنه ای کراندار در $mathbb{r}^n$ با مرز هموار $partial omega$ است. ابتدا، وجود جواب های مثبت مسائل نیمه مثبت گون نامتناهی [ -delta u=-a ...

Journal: :medical journal of islamic republic of iran 0
saeid kamal frutan dept of surgery, tehran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) hossein salehi rafsanjan university of medical sciences, rafsanjan-iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی رفسنجان (rafsanjan university of medical sciences) korosh mansouri tehran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) mehrdad bakhtyari dept of anatomy, tehran university of medical scienceسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) hamid abootaleb tehran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) sepehr pedram tehran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)

abstract   background : although, different studies on end-to-side nerve repair, results are controversial. the importance of this method in case is unavailability of proximal nerve. in this method, donor nerves also remain intact and without injury. in compare to other classic procedures, end-to-side repair is not much time consuming and needs less dissection. overall, the previous studies in ...

Journal: :international journal of nano dimension 0
r. ansari department of mechanical engineering, university of guilan, p.o. box 3756, rasht, iran h. rouhi department of mechanical engineering, university of guilan, p.o. box 3756, rasht, iran

in this paper, the stability characteristics of single-walled carbon nanotubes (swcnts) under the action of axial load are investigated. to this end, a nonlocal flügge shell model is developed to accommodate the small length scale effects. the analytical rayleigh-ritz method with beam functions is applied to the variational statement derived from the flügge-type buckling equations. molecular dy...

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