نتایج جستجو برای: field capacity

تعداد نتایج: 1047888  

A. Haddad D. Azan,

In this study, fuzzy logic was implemented to formulate the fuzziness of layer boundaries for a two-layered clay soil. A field of two-layered clay with fuzzy boundaries between layers was generated, and then the bearing capacity of strip footing on this field was calculated by the assumption of plane-strain conditions. The Mohr-Coulomb failure criterion was used and bearing capacity calculation...

One of the most important parameters in evaluating a watermarking algorithm is its capacity. Generally, watermarking capacity is expressed by bits per pixel (bpp) unit measure. But this measure does not show what the side effects would be on image quality, watermark robustness and capacity. In this paper we propose a three dimensional measure named Capacity surface which shows the effects of ca...

Journal: :مدیریت خاک و تولید پایدار 0
حسین شیرانی دانشگاه ولی عصر مطهره حبیبی دانشگاه ولی عصر اردوان کمالی دانشگاه ولی عصر عیسی اسفندیارپور دانشگاه ولی عصر

the aim of this research was to evaluate some soil physical quality indicators using remotely sensed date, gis and geostatistical methods in baft area that is one of the most important centers of agricultural production in kerman province. therefore, soil samples were collected from 0 to 20cm depth of 183 points based on regular sampling pattern (every 250 meters) and soil physical indicators i...

Journal: :Journal of physics 2023

Abstract This article mainly introduces that, as the proportion of renewable energy to total consumed increases further, with large-scale development and construction new energy, local power grid may face problem conflicting consumption in future, original transmission lines will no longer meet demand. For this reason, dynamic capacity increase technology is used calculate load real-time. Throu...

Salinity is one of the most important abiotic stresses that have restricted affects on plant growth and yield. Magnetic field can ameliorate the negative effect of salinity with induction of plant antioxidant activity. In present research, the effect of static magnetic fields (0 anf 4 mT) on some physiological parameters and antioxidative capacity were investigated under salinity stress at conc...

Journal: :ethno- pharmaceutical products 2014
parvin slehi shanjani masuomeh izadpanah mohsen calagari

drought stress is one of the most important factors limiting the survival and growth of plants in the different habitats of iran. detailed knowledge about the ecophysiological responses of native plants to drought stress could contribute to the success of breeding and re-vegetation programs. six wild populations of anthemis tinctoria, were assigned to four drought treatments, i.e. well-watered ...

Journal: :پژوهش های تولید گیاهی 0
پریسا پروین گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان مسعود خضری استادیار علوم باغبانی، پژوهشکده باغبانی، دانشگاه شهید باهنر کرمان ایرج توسلیان استادیار علوم باغبانی، پژوهشکده باغبانی، دانشگاه شهید باهنر کرمان

iran is among the world's arid and semi-arid countries. drought stress is one of the most important environmental stresses affecting fruit trees and considerably can cause yield reduction. persian walnut (juglans regia l.) with significant area harvest is one the most important nuts in iran which require sufficient amounts of water for optimal growth and efficiency. in order to study the e...

پایان نامه :دانشگاه آزاد اسلامی واحد علوم پزشکی تهران - دانشکده پزشکی 1389

مقدمه: یکی از شایعترین اختلالات ریوی در بزرگسالان بیماری های انسدادی مزمن ریه (copd) است که شامل برونشیت مزمن و آمفیزم می باشد. شدت این اختلال در تعیین میزان پاسخ به درمان موثر است و لذا امروزه سعی می شود معیارهای مختلفی در جهت درجه بندی شدت بیماری copd استفاده شود که از جمله آنها می توان به معیارهای بالینی ارائه شده توسط american thoracic society (ats) اشاره نمود. شناسایی ارتباطات موجود بین ای...

ژورنال: علوم زراعی ایران 2021

The effect of drought stress on the relative expression of Aquaporin, Dehydrin, Putative leafy cotyledon 1-like protein (Ha-L1L) genes in two sunflower lines [ENSAT254 (tolerant) and LC1064C (susceptible)] was investigated using real time PCR technique. The lines with different response to drought stress were planted using completely randomized design with three replications in greenhouse of fa...

Journal: :علوم گیاهان زراعی ایران 0
خسرو مفاخری دانشجوی دکتری اصلاح نباتات، گروه اصلاح نباتات و بیوتکنولوژی، دانشکدۀ کشاورزی دانشگاه تبریز محمدرضا بی همتا استاد، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج علیرضا عباسی دانشیار، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

understanding the physiological processes associated with drought stress lead to an understanding of the basic mechanisms of resistance, maintaining yield potential and contribute to the identification of drought tolerant cultivars. for this purpose, the effects of drought stress in cowpea genotypes was evaluated using five different genotypes with different yield potential in a pot experiment ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید