نتایج جستجو برای: karstification potential

تعداد نتایج: 1067894  

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
homayoun khoshravan km8 khezerabad,sari, mazandaran, iran, environmental management research group fatemeh nasehi azad university of ardebil

the main purpose of the study is determination of the pollutants hazard potential as well as environmental vulnerability of qarah su river. first the most significant pollutant sources in the qarah su river watershed were identified and then accordingly the pollution hazard potential rate was calculated in universal ranking system model setting. then, by generalizing the algebraic sum of the re...

Journal: :auditory and vestibular research 0
younes lotfi department of audiology, university of social welfare and rehabilitation sciences, tehran, iran nasim mardani department of audiology, university of social welfare and rehabilitation sciences, tehran, iran nima rezazade department of audiology, university of social welfare and rehabilitation sciences, tehran, iran elham saedi khamene clinic of internal medicine, amiralam hospital, tehran university of medical sciences, tehran, iran enayatallah bakhshi department of biostatistics, university of social welfare and rehabilitation sciences, tehran, iran

background and aim: vestibular migraine is a type of migraine that causes vertigo, dizziness, and imbalance in addition to typical migraine symptoms. in this study, we aimed to investigate vestibular system in these patients by videonystagmography (vng), electrocochleography (ecochg), and vestibular evoked myogenic potential (vemp) testing. methods: this empirical study was conducted on 10 pati...

Journal: :iranian journal of basic medical sciences 0
rafieh alizadeh ent and head & neck research center and department, hazrat rasoul akram hospital, iran university of medical sciences, tehran, iran shadan navid department of anatomy, school of medicine, tehran university of medical sciences, tehran, iran niloofar abbasi emergency sections, vali-asr hospital, shahrekord university of medical sciences, borujen, iran abazar yari department of anatomy, faculty of medicine, alborz university of medical sciences, karaj, iran zohreh mazaheri department of anatomy, tarbiat modares university, tehran, iran erfan daneshi department of anatomy, school of medicine, kurdistan university of medical sciences, sanandaj, iran

objective(s): increased levels of nitric oxide (no) in the testicular veins of people suffering from varicocele have already been reported. however, the role of no-synthase (nos) isozymes and their inhibitors have not been extensively studied. we aimed to evaluate the inhibitory effects of aminoguanidine (ag), on sperm motility, vitality, and mitochondrial membrane potential (mmp) in varicoceli...

Journal: :journal of the iranian chemical research 0
saleh bagheri department of physical & theoretical chemistry, faculty of chemistry, islamic azad university, tehran north branch, tehran 19936-53171, iran

in order to represent the potential energy function over the whole range of r, many potentialenergy functions have been proposed. in the present paper, we employ many potential energyfunctions, to use numerov method for solving the nuclear schrödinger equation for the ifmolecule, as an example of a heteronuclear diatomic molecules. then we determine thespectroscopic constants eω , e e x ω , e b...

Journal: :desert 2010
a. teimouri m. jafari h. azarnivand

abstract various resistances to salinity are due to plants genetically variations, and selection on the basis of one factor will not be a suitable criterion in measurement of resistance to salinity, therefore in choosing resistant varieties, it is necessary to notice to a set of resistant indexes to salinity, creating changes in physiology, anatomy and morphology of plant species. this research...

Journal: :journal of agricultural science and technology 2014
m. masoudi

the entire land in the southern iran faces problems arising out of various types of land degradation, of which the vegetation type forms one of the major ones. the payab basin (522,470 ha), which covers the lower reaches of mond river, was chosen for a test risk assessment of this type. the different kinds of data for indicators of vegetation degradation were taken from the records and publishe...

Journal: :physical chemistry research 2015
nahid farzi zeinab yaghoubi

the compressibility factor of nonassociated chain molecules composed of hard convex core yukawa segments was derived with saft-vr and an extension of the barker-henderson perturbation theory for convex bodies. the temperature-dependent chain and dispersion compressibility factors were derived using the yukawa potential. the effects of temperature, packing fraction, and segment number on the com...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان خراسان رضوی - دانشکده علوم پایه 1387

رهیافت پتانسیلی، بطور گسترده برای توصیف پراکندگی کشسان و واکنش های هسته ای در برخوردهای هسته-هسته ای در بازه انرژی از چند تا 100 مگا الکترون ولت بر نوکلئون بکار رفته است. ماهیت رهیافت پتانسیلی عبارت است از اینکه دستگاهی با دو هسته بر هم کنش گر با انرژی معین در کانال کشسان، باتابع موج مدلی توصیف می شود که از حل معادله تک ذره ای شرودینگر با "پتانسیل موثر" بدست می آید. مسئله اصلی رهیافت پتانسیلی...

Journal: :journal of sciences, islamic republic of iran 2015
p.s. pourhosseini m. pirhaghghi a.a. saboury f. najafi h. ghourchian

a novel quaternary ammonium-based cationic gemini surfactant (s6) having 1,6 di-bromo hexane as a spacer, have been used and its interaction with insulin in aqueous solution (ph, 7.40) was investigated by several methods including fluorescence spectroscopy, uv-vis spectroscopy, circular dichroism, dynamic light scattering, ζ-potential measurements, conductivity and transmission electron microsc...

Journal: :international journal of agricultural management and development 2012
govinda bhandari

this study is carried out to estimate the potential evapotranspiration (pet) and crop coefficient (kc) for wheat, bl 3235 variety. a lysimeter is installed to estimate pet at the experimental farm of agricultural research center of bhairahawa, which is located in western part of nepal. the blaney-criddle formula is used to estimate the kc for wheat. the estimated values of pet and kc for wheat ...

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