نتایج جستجو برای: time and frequency domain
تعداد نتایج: 17080444 فیلتر نتایج به سال:
the present dissertation aims to investigate four-word lexical bundles in applied linguistics research articles by iranian and internationally-published writers. the aims of this study are two-fold: first of all, attempts have been made to create a comprehensive list of the most commonly used four-word lexical bundles categorized by their type and token frequency, their structural characteristi...
the purpose the present is the citation and co-authorship analysis of the islam and quranic science researchers in “web of science” database and mapping the scientific structure of this domain between years of 1993–2012.this research is applying and we use scientometric methods and some rules and procedures related to this domain,. histcite™ software was utilized to mapping the structure of sci...
In this paper, a three dimensional mathematical model for HTLV-1infection with intracellular delay and immune activation delay is investigated.By applying the frequency domain approach, we show that time delays candestabilize the HAM/TSP equilibrium, leading to Hopf bifurcations and sta-ble or unstable periodic oscillations. At the end, numerical simulations areillustrated.
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