نتایج جستجو برای: hybrid methods

تعداد نتایج: 2041330  

Journal: :Acta Crystallographica Section A Foundations and Advances 2017

Journal: :Journal of Power and Energy Engineering 2015

Journal: : 2023

In this paper, we present a comprehensive taxonomy of the most popular authentication mechanisms, main threats, vulnerabilities, possible types attacks and security issues that are associated with computer systems. Our contribution is to analyze architecture current environment from all aspects make comparative assessment different methods in order identify develop scalable reliable mechanism m...

Journal: :journal of research in health sciences 0
negin-sadat mirian morteza sedehi soleiman kheiri ali ahmadi

background : in medical studies, when the joint prediction about occurrence of two events should be anticipated, a statistical bivariate model is used. due to the limitations of usual statistical models, other methods such as artificial neural network (ann) and hybrid models could be used. in this paper, we propose a hybrid artificial neural network-genetic algorithm (ann-ga) model to predictio...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

since its introduction in 1959, translation quality assessment (tqa) has been among the most addressed research topics in translation studies. during recent years, there has been a crucial increase on the study of tqa. various methods have come on scene. although these methods are based on scientific theories, most of them have remained at the level of theory. juliane house’s model is among tho...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...

The recommender systems are models that are to predict the potential interests of users among a number of items. These systems are widespread and they have many applications in real-world. These systems are generally based on one of two structural types: collaborative filtering and content filtering. There are some systems which are based on both of them. These systems are named hybrid recommen...

Journal: :به زراعی کشاورزی 0
سجاد کردی کارشناس ارشد زراعت، دانشکده کشاورزی دانشگاه ایلام محمد اسکندری عضو هیأت علمی مرکز تحقیقات کشاورزی خرم آباد علی فدوی عضو هیأت علمی دانشکده کشاورزی، دانشگاه ایلام مهرشاد براری عضو هیأت علمی دانشکده کشاورزی، دانشگاه ایلام مسعود رفیعی عضو هیأت علمی، دانشکده کشاورزی، دانشگاه ایلام علی اشرف مهرابی دکترای اصلاح نباتات، دانشکده کشاورزی، دانشگاه ایلام

a field experiment was conducted to study the physical properties of maize grain in response to different urea fertilization methods (urea foliar spraying and soil application), three harvest times (grain moisture content of 20, 30 and 40 pecent) in four maize hybrids (three foreign hybrids e.g. ns640, jeta600 , konsur580 and one common hybrid, sc704 as control) at khorram abad agricultural res...

Journal: :gas processing 0
mohammad-ali ramezani mechanical and aerospace faculty, islamic azad university, science and research branch, tehran, iran majid amidpour mechanical engineering faculty, energy system group, kntoosi university of technology, tehran, iran mohammad najafi mechanical and aerospace faculty, islamic azad university, science and research branch, tehran, iran majid abbaspour environment and energy faculty, islamic azad university, science and research branch, tehran, iran

in recent years, using new methods in utilization of energy resources has become necessary due to environmental pollution and restriction of energy resources. the hybrid system presented in this article produced power with sofc and stirling engine. the purpose is to analyze a 50 kw solid oxide fuel cell that could produce enough thermal energy for a 10 kw stirling engine working in the hybrid s...

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