نتایج جستجو برای: erosion potential method

تعداد نتایج: 2590021  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده ادبیات و علوم انسانی 1392

in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...

Soil erosion can be considered as one of the most important obstacles in the way of sustainable development of agriculture and natural resources. The aim of this study is to estimate erosion and sediment yield of basin using Erosion Potential Method, in Gorganrud basin, north of Iran. The main factors in the EPM (slope average percent, erosion, rock and soil resistance, and land-use) were evalu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده علوم 1391

abstract in the present research solution of chalcopyrite in sulfuric acid in hydrometallurgy method using electrochemistry with cyclic voltammetry technique has been investigated. the value of maximum reduction peak current of copper ions represents the measure of solubility. in this research different parameters temperature, potential, potential exert time, chalcopyrite concentration, sulfur...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this research we have studied the effect of some transition-metals (cu, ag and au) substitutions on two-electron reduction potential of flavins by application of dft method. all geometries have been optimized at blyp level of theory and “6-31+g** + lanl2dz” mixed basis set. the frequency job at the same method and basis sets has been performed to obtain gibbs free energy of compounds. it h...

Journal: :پژوهش های جغرافیای طبیعی 0
کاظم رنگزن عضو هیئت علمی دانشگاه شهید چمران اهواز علیرضا زراسوندی عضو هیئت علمی دانشگاه شهید چمران اهواز ارسلان حیدری کارشناس ارشد سنجش از دور و gis، استانداری کرمانشاه

abstract this research was conducted in the pegah - sorkh sub-catchments area, a semi-arid region in sw iran, using geographic information systems (gis) and remote sensing (rs) to compare the erosion potential method (epm) and modified pacific southwest interagency committee (mpsiac) models in erosion-potential mapping and sediment yield assessment. the study area with approximately 4600 ha sho...

Journal: :iranian journal of pharmaceutical sciences 0
golnar dorraj department of pharmaceutics and nanotechnology, school of pharmacy, shahid beheshti university of medical sciences, po box: 14155-6153, tehran, iran. hamid r. moghimi department of pharmaceutics and nanotechnology, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. pharmaceutical sciences research center, shahid beheshti university of medical sciences, tehran, iran.

preparation and characterization of thermoresponsive in-situ forming poloxamer hydrogel for controlled release of nile red-loaded solid lipid nanoparticles. nanoparticles (nps) are cleared rapidly from systemic circulation and do not provide sustained action in most cases. to solve this problem, this investigation introduces an erodible in-situ forming gel system as potential vehicles for prolo...

Journal: :تحقیقات جغرافیایی 0
علیرضا فرید حسینی دانشگاه فردوسی مشهد علیرضا زارعی شرکت مشاور طوس آب فرید فریدانی بردسکن دانشگاه فردوسی مشهد امین علیزاده دانشگاه فردوسی مشهد

soil erosion is the most important threat to the soil and water resources among the soil degradation processes in arid and semi-arid regions. this study was conducted in shirin-darreh basin, a semi-arid region in north-eastern iran, to evaluate the performance of erosion potential method (epm) and hydro-physical method (csy) in generating erosion potential and sediment load maps via geographic ...

2009
Jorge Pacheco Allan Kidd

This paper presents a method for estimating the potential for liquid droplet erosion in compression system components, such as the impeller of centrifugal compressors. The erosion model selected is used to calculate a threshold velocity that represents the limit for the onset of erosion damage. The parameters used in the model include the liquid phase density and viscosity, impeller geometry, s...

Golnar Dorraj, Hamid R. Moghimi

Preparation and characterization of thermoresponsive in-situ forming poloxamer hydrogel for controlled release of Nile red-loaded solid lipid nanoparticles. Nanoparticles (NPs) are cleared rapidly from systemic circulation and do not provide sustained action in most cases. To solve this problem, this investigation introduces an erodible in-situ forming gel system as potential vehicles for prolo...

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