نتایج جستجو برای: key words genetic algorithm
تعداد نتایج: 1868124 فیلتر نتایج به سال:
Ant colony optimization (ACO) algorithms are a recently developed, population-based approach which has been successfully applied to optimization problems. However, in the ACO algorithms it is difficult to adjust the balance between intensification and diversification and thus the performance is not always very well. In this work, we propose an improved ACO algorithm in which some of ants can ev...
خصوصیات کاریوتیپی چهار گونه گون (astragalus) با نامهای a. cornu-carpae ، a. mucronifoliusو a. talimansurensis از بخشه leucocersis و گونه a. crysostachysاز بخشه hymenostegis. مطالعه شدند. گونه ها وجود 2n = 2x = 16 را نشان دادند که تمامی گزارش جدید می باشند. کروموزومها از نوع متا و ساب متا بودند و اندازه آنها ازmm 75/. در a. talimansurensis تا 4 mm در a. cornu-carpaeمتغیر بود. گونه های ...
background and purpose: occular toxicity is one of the most important complications of hydroxychloroquine. not any type of treatment has so far been found and recommended for this disorder. the purpose of this study was to report some characteristics of patients with hydroxychloroquine induced retinopathy. materials and methods: from 107 patients with rheumatoid arthritis (ra) and/or systemi...
background: the advancement of technology in recent decades has been lead to use the electrophysiology cardiac devices. although these devices are used increasingly, but the frequency of subclinical infection is unknown. we investigate bacterial infections due to implantable cardioverter defibrillator (icds) in patients with endocarditis. m aterials and methods: population of the study was cons...
abstract purpose-the purpose of this paper is to review a sample of the literature relating to interpretive structural modelling (ism) and its deployment for modelling purposes in the area of supply chain management (scm). design/methodology/approach- the literature is examined from the three perspectives. first, concept of ism and examines ism as modelling technique. second, use of ism by the ...
interpreters have emphasize the necessity of knowing e’rab (diacritic) and syntax in the holy quran and none of them has been doubtful in the significance of the role of e’rab in interpreting. tabarsi in his interpretation book has exerted his efforts in delineating e’rab and after mentioning verses for interpreting, firstly explains lexical elements and then, discusses their e’rab. the signifi...
This paper presents the time complexity analysis of the genetic algorithm clustering method. The tested feature in the clustering algorithm is the population limit function. For the purpose of the study, segmental kurtosis analysis was done on several segmented fatigue time series data, which are then represented in two-dimensional heteroscaled datasets. These datasets are then clustered using ...
چکیده: مقدمه: درد و تورم ناشی از التهاب پالپ درگیر باعث ایجاد اورژانس های اندودنتیک می شود. اتخاذ روش های درمانی برای کاهش درد بیماران در این شرایط کلینیکی هنوز هم یکی از چالش برانگیزترین مسائل علم اندودنتیکس است. این مطالعه با هدف بررسی میزان آگاهی از شیوه درمان اورژانس های اندودنتیک در بین دندانپزشکان متخصص درمان ریشه و دندانپزشکان عمومی شهر مشهد در سال 91-1390 انجام می شود. مواد و روش ها:...
introduction: determination of type and location of trapped objects and endoscopic observations among children with foreign-body ingestion. materials and methods: we evaluated 105 endoscopic records of patients presenting with foreign-body ingestion from 2001–2011. results: button batteries were the most common objects removed (41%). the lower segment of the esophagus was the most common trappi...
background: although the need for theory-based designs, evidencesexploringexercisingeffects during pregnancy is limited by non-theoretical and cross-sectional assessments. this study aimed to prospectively examine women’s exercise behavior from their second to third pregnancy trimester using the health belief model (hbm). material and methods: this was a randomized controlled trial in which ...
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