نتایج جستجو برای: capacity spectrum
تعداد نتایج: 496885 فیلتر نتایج به سال:
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract Here, in this paper spectrum sensing method is proposed for full duplex cognitive radio. Spectrum sensing performs essential part in spectrum allocation. Cognitive radio is the very useful option now a days, as the traffic of user increase and less...
مقدمه: یکی از شایعترین اختلالات ریوی در بزرگسالان بیماری های انسدادی مزمن ریه (copd) است که شامل برونشیت مزمن و آمفیزم می باشد. شدت این اختلال در تعیین میزان پاسخ به درمان موثر است و لذا امروزه سعی می شود معیارهای مختلفی در جهت درجه بندی شدت بیماری copd استفاده شود که از جمله آنها می توان به معیارهای بالینی ارائه شده توسط american thoracic society (ats) اشاره نمود. شناسایی ارتباطات موجود بین ای...
The new techniques in seismic design of structures are usually attributed to high damping ratios. In such systems, the assumption of classical (i.e. proportional) damping is not valid and in most cases they should be considered as Non-classical systems. Since the analytical tools for studying the behavior of such structures are not easily available, the present work attempts to find the limits,...
The new techniques in seismic design of structures are usually attributed to high damping ratios. In such systems, the assumption of classical (i.e. proportional) damping is not valid and in most cases they should be considered as Non-classical systems. Since the analytical tools for studying the behavior of such structures are not easily available, the present work attempts to find the limits,...
let $r$ be a commutative ring and let $m$ be an $r$-module. in this article, we introduce the concept of the zariski socles of submodules of $m$ and investigate their properties. also we study modules with noetherian second spectrum and obtain some related results.
a multicone graph is defined to be join of a clique and a regular graph. a graph $ g $ is cospectral with graph $ h $ if their adjacency matrices have the same eigenvalues. a graph $ g $ is said to be determined by its spectrum or ds for short, if for any graph $ h $ with $ spec(g)=spec(h)$, we conclude that $ g $ is isomorphic to $ h $. in this paper, we present new classes of multicone g...
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