نتایج جستجو برای: hybrid methods
تعداد نتایج: 2041330 فیلتر نتایج به سال:
this paper presents a new mathematical model for a hybrid flow shop scheduling problem with multiprocessor tasks in which sequence dependent set up times and preemption are considered. the objective is to minimize the weighted sum of makespan and maximum tardiness. three meta-heuristic methods based on genetic algorithm (ga), imperialist competitive algorithm (ica) and a hybrid approach of ga a...
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
producing hybrid lettuce is prevented by flower structure and usually lead to selfing. based on it, this experiment was carried out to evaluate the performance of different physical and chemical emasculation methods for producing lettuce hybrid seed. a numbers of cultivars with dominant and recessive traits were used as male and female parents, respectively. in the first experiment, physical em...
Effects of different dentin bonding agents on nanoleakage and hybrid layer thickness Dr. M. Ghavamnasiri* - Dr. F. Maleknejad* - Dr. H. Ameri** - Dr. MJ. Moghadas** *- Associate Professor of Operative Dentistry Dept. – Faculty of Dentistry – Mashhad University of Medical Sciences. **- Assistant Professor of Operative Dentistry Dept. – Faculty of Dentistry – Mashhad University of Medical Science...
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