نتایج جستجو برای: generators

تعداد نتایج: 23984  

Journal: :Open Science Journal 2021

Journal: :ACM Computing Surveys 2020

Journal: :Journal of Synthetic Organic Chemistry, Japan 1970

Journal: :Proceedings of the American Mathematical Society 2004

2006
FILIPPO BRACCI MANUEL D. CONTRERAS

We characterize infinitesimal generators of semigroups of holomorphic selfmaps of strongly convex domains using the pluricomplex Green function and the pluricomplex Poisson kernel. Moreover, we study boundary regular fixed points of semigroups. Among other things, we characterize boundary regular fixed points both in terms of the boundary behavior of infinitesimal generators and in terms of plu...

Journal: :تحقیقات نظام سلامت 0
رستم گلمحمدی دانشیار، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت و مرکز تحقیقات علوم بهداشتی، دانشگاه علوم پزشکی همدان، همدان حیدر محمدی دانشجوی کارشناسی ارشد، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی همدان، همدان، ایران هادی بیات دانشجوی کارشناسی ارشد، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی همدان، همدان، ایران علیرضا سلطانیان استادیار، گروه آمار زیستی، دانشکده بهداشت، دانشگاه علوم پزشکی همدان، همدان، ایران.

background and aims: since using city power for welding process is not allowed, diesel generators are used as a power supply in construction industries. they could be introduced as a main source of noise pollution. the purposes of this study were to assess and control noise pollution produced by construction diesel generators in hamadan, iran. methods: in this descriptive, cross-sectional study...

Journal: :iranian journal of electrical and electronic engineering 0
m. j. abbasi semnan university h. yaghobi semnan university, semnan

the doubly fed induction generator (dfig) is one of the most popular technologies used in wind power systems. with the growing use of dfigs and increasing power system dependence on them in recent years, protecting of these generators against internal faults is more considered. loss of excitation (loe) event is among the most frequent failures in electric generators. however, loe detection stud...

The portable generators are the main means of compensating the shortage of national electricity power as in Iraq. However, their noise causes a huge disturbance, uncomforting and loss of concentration of the nearby resident. This problem requires a solution because most shops and residential houses use generators. Covering method is a simple and relatively low cost one for reduction of generato...

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