نتایج جستجو برای: الگوریتم های فراابتکاری n s g a

تعداد نتایج: 14231975  

Journal: :اکو هیدرولوژی 0
مریم آذرخشی استادیار دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه تربت حیدریه سید جواد سعادت پور کارشناسی ارشد آبخیزداری، دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه تربت حیدریه علیرضا اسلامی استادیار پژوهشکدۀ حفاظت خاک و آبخیزداری کشور، تهران

regional analysis is one of the important methods for estimating the low flow in ungagged regions. investigation of the relations between effective factors of hydrological drought is the most important strategy to contrast and reduction of drought losses. in this study to analyze of low flow, the daily discharge data from 20 gauging stations with 25 years period (1988-2012) in the kashafroud ba...

Journal: :iranian journal of basic medical sciences 0
zhou du department of gastrointestinal surgery, the first affiliated hospital of wenzhou medical university, wenzhou 325035, zhejiang province, china feng zhou department of gastrointestinal surgery, the first affiliated hospital of wenzhou medical university, wenzhou 325035, zhejiang province, china zengrong jia department of gastrointestinal surgery, the first affiliated hospital of wenzhou medical university, wenzhou 325035, zhejiang province, china beishi zheng department of gastrointestinal surgery, the first affiliated hospital of wenzhou medical university, wenzhou 325035, zhejiang province, china shaoliang han department of gastrointestinal surgery, the first affiliated hospital of wenzhou medical university, wenzhou 325035, zhejiang province, china jun cheng department of gastrointestinal surgery, the first affiliated hospital of wenzhou medical university, wenzhou 325035, zhejiang province, china

objective(s): the study aimed to investigate the effects of resveratrol on colorectal cancer hct116 cells, including cell viability, apoptosis, and migration, and the partial mechanisms focused on hedgehog/gli-1 signaling pathways. materials and methods: we chose the appropriate time and concentration of recombinant human sonic hedgehog (shh) stimulation by cell viability. the proportion of cel...

Given a pair (semispray $S$, metric $g$) on a tangent bundle, the family of nonlinear connections $N$ such that $g$ is recurrent with respect to $(S, N)$ with a fixed recurrent factor is determined by using the Obata tensors. In particular, we obtain a characterization for a pair $(N, g)$ to be recurrent as well as for the triple $(S, stackrel{c}{N}, g)$ where $stackrel{c}{N}$ is the canonical ...

Journal: :علوم باغبانی ایران 0
اسماء عباسی کاشانی دانشگاه ولی عصر رفسنجان، کارشناسی ارشد محمدحسین شمشیری دانشیار، گروه علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه ولی‏عصر(عج) رفسنجان مجید اسماعیلی زاده استادیار گروه علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه ولی‏عصر(عج) رفسنجان حمیدرضا کریمی دانشیار گروه علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه ولی‏عصر(عج) رفسنجان

drought is the most common environmental stresses that affects plant growth. to study the combined effects of arbuscular mycorrhizal fungi (glomus intratadices) and jasmonic acid on growth and ecophysiologycal characteristics of pistachio seedlings cv. qazvini under drought stress, a greenhouse experiment was conducted in a completely randomized design with three replications. experimental fact...

Journal: :به زراعی کشاورزی 0
محمود رضا تدین دانشیار گروه زراعت، دانشکدۀ کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران (نویسندۀ مسئول مکاتبات *) سعید نوروزی کارشناس ارشد، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران

effect of nano titanium oxide, nano zinc and multiwall carbon nano tube on yield and yield components of green gram was carried out in kohkiloyeh-boyrahmad province, iran with 30 degrees 45' n and 50 degrees 44' in 2013 growing seasons. the experiment was arranged as factorial in a completely randomize block design with three replications, treatments including: four concentrations (ze...

Journal: :شیلات 0
مهرداد علی¬اصغری 1 دانشگاه آزاد اسلامی، واحد قائمشهر، باشگاه پژوهشگران جوان، عبدالصمد کرامت گروه شیلات، دانشگاه علوم کشاورزی و منابع طبیعی ساری، فرخ پرافکنده حقیقی موسسه تحقیقات شیلات ایران،

the present research aimed to study the growth and reproductive parameters of common kilka clupeonella caspia in southern caspian sea in 2010. after measuring the length and weight of 3774 samples, they were dissected, sex determined and female gonads were weighed. sexual maturity classification was carried out based on six stages. age was determined using sagitta otoliths. length-weight relati...

Journal: :علوم گیاهان زراعی ایران 0
علی نخ زری مقدم استادیار گروه تولیدات گیاهی، دانشگاه گنبد کاووس

detopping in some plants reduces vegetative growth and increases transporting of photosynthate materials to specific sinks such as seeds. to study the effects of detopping removal and plant density on yield and yield components of faba bean (vicia faba l.), an experiment was carried out as a factorial arrangement based on a randomized complete block design with three replications at farm resear...

Journal: :mycologia iranica 0
s. leylaie department of plant protection, faculty of agriculture, university of zabol, zabol, iran s. k. sabbagh department of plant protection, and institute of plant biotechnology (biocenter), university of zabol, zabol, iran. m. a. tajik ghanbari department of plant protection, sari agricultural science and natural resources university, sari, iran.

the expression of endoglucanase gene and protein profile belonging to two fungal species, penicillium oxalicum 1sms and trichoderma viride 156ms with high cellulase enzyme activity, was investigated. fungal isolates were cultured on inducer cmc medium and then the amount of released sugar and protein were assayed every three days for a month, using arsenate molybdatereagent and bradford method,...

ژورنال: :تحقیق در عملیات در کاربردهای آن 0
مجید یوسفی خوشبخت محمد صدیق پور

فروشنده از m> یکی از کاربردی ترین مسایل بهینه سازی ترکیباتی مساله چندین فروشنده دوره گرد است که در آن، 1 مشتری به آن باز می گردند، به n>m یک نقطه مشترک به نام انبار شروع به حرکت م یکنند و بعد از ملاقات کردن طوری که هر مشتری تنها یک بار به وسیله یک فروشنده مورد ملاقات قرار م یگیرد. هدف در این مساله کمینه کردن مسیر کلی پیموده شده توسط همه فروشنده های دوره گرد است. در این مقاله، یک روش اصلاحی الگو...

Journal: :چغندرقند 0
رحیم محمدیان استادیار مؤسسه تحقیقات چغندرقند

water stress is one of the main factors affecting the quantity and quality properties of sugar beet. the objective of this experiment was to study the effect of irrigation management on quality and quantity of sugar beet. the present research was conducted in motahary station of sugar beet seed institute,karajin two years, 2005 and 2006. the experiment was based on split plot design, in which e...

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