نتایج جستجو برای: site conditions
تعداد نتایج: 1174088 فیلتر نتایج به سال:
In this paper, the 10-minutes period measured wind speed data at different heights (10 m, 30 m, and 40 m) are presented for Khvaf, which is one of the major counties with high wind potential in Khorasan provinces in Iran. To the author’s knowledge, there hasn’t been any assessment works in the mentioned site. From the primary evaluation and by determining mean wind speed and also the Weibull fu...
Mountainous landscapes in Central Zagros are mainly used as grazing rangelands to feed animals and are heavily degraded. Overgrazing may impose a negative effect on rangeland productivity and sustainability through significant changes in soil properties. Soil nitrogen (N) mineralization is one of the key biological processes that might be affected by biotic and abiotic factors including range g...
Introduction: Hyperthermia is one of the noninvasive methods of treating cancer. In this method, heat can be generated in several methods. One of these methods is injecting magnetic nanoparticles as a solution into the tumor site and place it in a magnetic field. Methods: The study was analytical one, modeling was performed using computational methods, and in vitro experimental data were used ...
Abstract Resource managers and scientists across western U.S. agencies seek methodologies for identifying environmental attributes important to both wildlife conservation broad-scale land stewardship. The Greater Sage-Grouse (Centrocercus urophasianus; hereafter, sage-grouse) exemplifies a species in need of this approach given widespread population declines that have resulted from loss degrada...
Deep root water uptake and hydraulic redistribution (HR) have been shown to play a major role in forest ecosystems during drought, but little is known about the impact of climate change, fertilization and soil characteristics on HR and its consequences on water and carbon fluxes. Using data from three mid-rotation loblolly pine plantations, and simulations with the process-based model MuSICA, t...
this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...
اهمیت بالای کلسیم ترانسپورترها و عدم وجود مطالعات وسیع بر روی خصوصیات پروتئینی آنها، منجر به انجام این تحقیق شد. حدود 3000 خصوصیات پروتیئنی از 349 کلسیم ترانسپوتر با استفاده از روش های بیوانفورماتیکی استخراج گردید و به وسیلهfeature selection، مدلینگ و آنالیزهای آماری برای مشخص کردن خصوصیات اسیدآمینه های ساختاری در عملکرد کلسیم ترانسپورترها بررسی شد. این نتایج اهمیت میزان اسیدآمینه های آبگریز را...
امروزه به دلیل اجرای پروژه های متعدد با هدف یافتن توالی ژن ها، میزان زیادی از داده های زیستی جمع آوری شده است. از این رو کاوش این گونه داده ها و کشف دانش مفید از درون آن ها اهمیت فراوانی پیدا کرده است. الگوریتم های داده کاوی کمک شایانی به پیش بینی در حوزه های مختلف زیست شناسی کرده اند، اما از میان آن ها الگوریتم هایی که به کشف دانش قابل تفسیر می انجامند دارای اهمیتی دو چندانی می باشند. این دانش...
Outpatient marijuana treatment for adolescents. Economic evaluation of a multisite field experiment.
An economic evaluation of five outpatient adolescent treatment approaches (12 total site-by-conditions) was conducted. The economic cost of each of the 12 site-specific treatment conditions was determined by the Drug Abuse Treatment Cost Analysis Program (DATCAP). Economic benefits of treatment were estimated by first monetizing a series of treatment outcomes and then analyzing the magnitude of...
a simple, sensitive and selective method for solvent extraction and spectrophotemetric determination of lanthanum (ii) europium (iii), and cerium (iii) is described , the rare earth metals are extracted into chloroform solution of n-phenylbenzohydroxamic acid (pbha) at ph 9-10 various parameters are studied to optimize the extraction conditions. the molar absorptivity is found to increase from ...
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