نتایج جستجو برای: genetic material

تعداد نتایج: 965650  

Journal: :Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 2012

This study aims to deal with a more realistic combined problem of project scheduling and material ordering. The goal is to minimize the total material holding and ordering costs by determining the starting time of activities along with material ordering schedules subject to some constraints. The problem is first mathematically modelled. Then a hybrid simulated annealing and genetic algorithm is...

Journal: :iranian journal of medical physics 0
zohreh dehghani bidgoli ph.d. student, biomedical engineering dept., faculty of electrical engineering, tarbiat modares university, tehran, iran. mohammad hosein miranbaygi associate professor, biomedical engineering dept., faculty of electrical engineering, tarbiat modares university, tehran, iran. rasool malekfar associate professor, physics dept., faculty of basic sciences, tarbiat modares university, tehran, iran.

introduction: raman spectroscopy, that is a spectroscopic technique based on inelastic scattering of monochromatic light, can provide valuable information about molecular vibrations, so using this technique we can study molecular changes in a sample. material and methods: in this research, 153 raman spectra obtained from normal and dried skin samples. baseline and electrical noise were eliminat...

پایان نامه :0 1371

the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...

Journal: :Annals of agricultural and environmental medicine : AAEM 2017
Rafał Patryn Jarosław Sak

OBJECTIVE The aim of the article is a critical presentation of the typology of consents included in the European Convention on Bioethics and in other formal solutions concerning the gathering of genetic material in institutions called Biobanks. MATERIAL AND METHODS Existing types of Acts of Consent are inaccurate in their scope and possess insufficient information regarding the gathering of g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مهندسی برق و کامپیوتر 1392

با وجود حجم بالای اطلاعات متنی، نیازمند سیستمی کارا جهت دسته بندی خودکار متون داریم. بنابراین، باید دسته بندی را طوری انجام داد که ضمن افزایش دقت، سبب کاهش زمان و هزینه شود. فرایند دسته بندی متون دارای گام‎های پیش پردازش، وزن دهی، کاهش ویژگی و دسته بندی است که برای هر گام روش‎های مختلفی تا کنون ارائه شده است. یکی از گام‎های تعیین کننده در دسته بندی، کاهش ویژگی‎ها است. این موضوع در زبان فارسی به...

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