نتایج جستجو برای: base method
تعداد نتایج: 1851768 فیلتر نتایج به سال:
Background: The evidence base for childbirth has been progressively developed and refined over several decades. Effective maternity care with least harm is optimal for childbearing women and newborns. High-quality systematic reviews of the best available research provide the most trustworthy knowledge about beneficial and harmful effects of health interventions. The aim of this study was to sum...
Content-based image retrieval (CBIR) has been an active research topic in the last decade. In this paper we proposed an image retrieval method using global and local features. Firstly, for local features extraction, SURF algorithm produces a set of interest points for each image and a set of 64-dimensional descriptors for each interest points and then to use Bag of Visual Words model, a cluster...
Real time and accurate fault detection has attracted an increasing attention with a growing demand for higher operational efficiency and safety of industrial gas turbines as complex engineering systems. Current methods based on condition monitoring data have drawbacks in using both expert knowledge and quantitative information for detecting faults. On account of this reason, this paper proposes...
A new method is proposed to automatically learn the knowledge base (KB) by finding an appropiate data base (DB) by means of a genetic algorithm while using a simple generation method to derive the rule base (RB). Our genetic process learns the number of linguistic terms per variable and the membership function parameters that define their semantics, while a rule base generation method learns th...
در قسمت اول این تحقیق، نانوذرات fe3o4 به روش همرسوبی سنتز شد و به روش میکروامولسیون معکوس سیلیکا دار شد سپس کمپلکس بازشیف آهن(iii) را بر سطح بستر fe3o4@sio2 تثبیت گردید. این نانوکاتالیزور (fe3o4@sio2/fe(iii) schiff base) با تکنیک های ft-ir ,vsm ,tem ,xrd شناسایی شد. xrd نانوکاتالیزور فاز مکعبی خالص را نشان داد. ریخت شناسی کروی با اندازه ذره تقریباً nm60 با تصاویرtem تأیید شد. خاصیت پارامغناطیسی ...
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