نتایج جستجو برای: nerual networks
تعداد نتایج: 427584 فیلتر نتایج به سال:
Introduction: Social Networks has entered teenagers' lives increasingly. Over 90% of teenagers use social networks during day and night. Evidences suggest that there's an increasing connection between social networks use and different aspects of teenager's health, including sleep quality and mental health. The aim of is this study is to do a survey effects of online social networks on sleep qua...
Background and Aim: The online social networks as new and widespread sources of information have been able to facilitate the accessibility of people to health information. The aim of this study was to determine the use of online social networks and their role in sharing health information among pregnant women. Materials and Methods: This descriptive-analytical study was conducted in Kerman in ...
characterization of toxin-antitoxin (ta) systems in pseudomonas aeruginosa clinical isolates in iran
conclusions based on the presence of ta systems in the majority of p. aeruginosa isolates, these could be used as a novel target for antimicrobial therapy. results our results showed that in the 174 p. aeruginosa isolates, relbe and higba were universal, but parde was less prevalent. both of the flanking regions of the parde genes in all positive isolates were amplified. the flanking regions of...
in this paper, we propose a scheme to improve existing ad-hoc on-demanddistance vector (aodv) routing protocol by discovering and maintaining multiplenon-overlapped routes. our routing protocol is a multipath version of aodvrouting protocol that considers only the disjoint path. due to non-overlappingamong paths, when a link breaks in the network, only one of paths is expired. thepresented rout...
accurate estimation of evaporation is important for design, planning and operation of water systems. in arid zones where water resources are scarce, the estimation of this loss becomes more interesting in the planning and management of irrigation practices. this paper investigates the ability of artificial neural networks (anns) technique to improve the accuracy of daily evaporation estimation....
background: we designed an algorithmic model based on the logistic regression analysis and a non-algorithmic model based on the artificial neural network (ann). materials and methods: the ability of these models was compared together in clinical application to differentiate malignant from benign breast tumors in a study group of 161 patients' records. each patient’s record consisted of 6 s...
The aging of insulating materials can be estimated by an electrical breakdown occurring in electrical components so that the relationship between lifetime, failure probability and reliability of electrical components may be studied using the life models in high voltage cables networks. In last decades with attention to higher features as electrical, thermal, mechanical characteristic, widely cr...
Considering the high costs of the implementation and maintenance of gas distribution networks in urban areas, optimal design of such networks is vital. Today, urban gas networks are implemented within a tree structure. These networks receive gas from City Gate Stations (CGS) and deliver it to the consumers. This study presents a comprehensive model based on Mixed Integer Nonlinear Programming (...
Social networks are one of the most popular branches of virtual networks that can have a great impact on people's personal and social life. The aim of this study was to investigate the role of loneliness and personality characteristics in university students' dependence on social networks. The method of this research was of correlational type and sampling method was proportionate stratified sam...
Conventional passive distribution networks are changing to modern active distribution networks which are not radial. Conventional load flow methods should be modified for new distribution networks analysis. In modern distribution networks distributed generation (DG) units are embedded with conventional and/or renewable resources. DG units are generally modeled as PV or PQ nodes which inject ...
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