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با محدودیت های پیش آمده در توسعه معماری های موازی همچون میزان مصرف انرژی، میزان گرما و مشکلات عدم همراهی سرعت حافظه با پردازنده ها، معماری چندهسته ای طرح گردید. این معماری به سرعت در کامپیوتر های تجاری و خانگی جای گرفته است. گرچه پردازنده های چندهسته ای گونه ای از معماریهای حافظه اشتراکی هستند ولی بعلت بکارگیری حافظه سلسله مراتبی در سطح یک پردازنده، نیاز به یک بازنگری مجدد در مورد نرم افزار...
در این نوشتار به طراحی و ساخت یک سیستم تعادلی جدید با الهام از هواپیماهای عمودپرواز تیلت روتور(خصوصاً v-22 ospery) پرداخته شده است. هدف از ساخت این دستگاه تولید ابزاری آموزشی-پژوهشی چندمنظوره برای دانشجویان رشته مکاترونیک بوده است. مراحل تولید از مرحله طراحی بخش مکانیکی و بررسی دینامیکی سیستم با کمک نرم افزارهای solidworks، adams، ansys و maplesim شروع شده و با ساخت بخش مکانیکی ادامه یافت. در مر...
the majority of patients with glioblastoma multiforme (gbm) suffer dismal outcomes. adopting a broader, multi-mechanistic, multi-agent approach targeting gbm using readily available and fairly benign agents in combination with standard therapy may improve outcomes. such agents include fluoxetine, fenofibrate, cimetidine, citrulline, valacyclovir, 1,3 1-6 beta glucan, and tadalafil, among others...
In this research, the multi-objective project management decision problem with fuzzy goals and fuzzy constraints are considered. We constitute α-cut approach and two various fuzzy goal programming solution methods for solving the Multi-Objective Project Management (MOPM) decision problem under fuzzy environments. The Interactive fuzzy multi-objective linear programming (i-FMOLP) and Weighted Ad...
multicast routing is one of the most important services in multi radio multi channel (mrmc) wireless mesh networks (wmn). multicast routing performance in wmns could be improved by choosing the best routes and the routes that have minimum interference to reach multicast receivers. in this paper we want to address the multicast routing problem for a given channel assignment in wmns. the channels...
many appealing multicast services such as on-demand tv, teleconference, online games and etc. can benefit from high available bandwidth in multi-radio multi-channel wireless mesh networks. when multiple simultaneous transmissions use a similar channel to transmit data packets, network performance degrades to a large extant. designing a good multicast tree to route data packets could enhance the...
in recent years, the issue of energy consumption modeling techniques in the building sector has been widely considered by researchers and managers. researches indicate that energy consumption in residential sector is one of the main parts of the total consumption. moreover, the urban residence is supposed as a significant consumer of energy in every country and therefore a focus for energy cons...
mobile-ad-hoc-networks (manets) are self-configuring networks of mobile nodes, which communicate through wireless links. the infrastructure of a mobile ad hoc network (manet) has no routers for routing, and all nodes must share the same routing protocol to assist each other when transmitting messages. the main issues in manets include the mobility of the network nodes, the scarcity of computati...
Linear dimension reduction has been used in different application such as image processing and pattern recognition. All these data folds the original data to vectors and project them to an small dimensions. But in some applications such we may face with data that are not vectors such as image data. Folding the multidimensional data to vectors causes curse of dimensionality and mixed the differe...
this article deals with the issues associated with developing a new design methodology for the nonlinear model-predictive control (mpc) of a chemical plant. a combination of multiple neural networks is selected and used to model a nonlinear multi-input multi-output (mimo) process with time delays. an optimization procedure for a neural mpc algorithm based on this model is then developed. the p...
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