نتایج جستجو برای: three phase lag model
تعداد نتایج: 3599324 فیلتر نتایج به سال:
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
one of the most important factors in study of project’s , is the study of environmental opportunities factors the permanent study of environmental opportunity factors . the study of permanent environmental changing and knowing golden threats’ cooperate with possible threats and at the result in structure forming and future skeleton of organization has a vital effects . the petrochemical industr...
امروزه بکارگیری مدل های هدایت حرارتی دیگری به جای معادله ی فوریه برای مقیاس های زمانی و طولی شناخته شده است. در دو مدل متداول( cv: cattaneo vernotte و dpl: dual phase lag)، زمان های تاخیر برای اصلاح معادله ی فوریه در نظر گرفته می شود. در بخش اول این پایان نامه روشی برای اندازه گیری زمان های تاخیر بر اساس پاسخ فرکانسی پیشنهاد می شود. به خاطر مشکلاتی که در تولید و اندازه گیری فرکانس های بزرگ وجود...
this article analyses the effects of foreign exchange commitment and exchange rate unification policies on iran’s non-oil exports during the last three decades. in addition, the effects of these policies on non-oil exports have empirically been estimated. for this purpose, an export supply model was estimated using the econometrics technique of auto regressive distributed lag (ardl) and reliabl...
This paper proposes a new system-equation test for threshold cointegration based on a threshold vector autoregressive distributed lag (ADL) model. The new test can be applied when the cointegrating vector is unknown and when weak exogeneity fails. The asymptotic null distribution of the new test is derived, critical values are tabulated, and finite-sample properties are examined. In particular,...
Plasminogen activation by tissue-type plasminogen activator (t-PA) is stimulated by fibrin. In a purified system maximal fibrin-enhanced plasmin formation occurs with a delay after an initial phase of slow plasmin formation (lag phase). In the present study purified stimulating CNBr-fragment FCB-2 of fibrinogen was used, and kinetics of plasminogen activation by t-PA were analyzed with respect ...
An amended kinetic model for the self-assembly of empty capsids of brome mosaic virus is proposed. The model has been modified to account for a new feature in the assembly kinetics revealed by time-course light scattering experiments at higher temporal resolution than previously attempted. To be able to simulate the sharp takeoff from the initial lag phase to the growth phase in the kinetic cur...
This paper provides an overview of recent results for relay-delay systems. In a first section, simple examples illustrate the problems induced by delays in the synthesis of sliding mode controllers. Then, a brief overview of the existing results shows the present advances and limits in this domain. The last parts of the paper are devoted to new results: first, for systems with state delay, then...
return and volatility spillovers are important for portfolio selection, asset valuation and market efficiency investigation. using a var-bekk framework model, this paper investigates return and volatility spillover effects between three size-sorted equity indices in tehran stock exchange (tse). although daily return of large stocks leads small stocks (lead-lag effect), there wasn’t any spillove...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید