نتایج جستجو برای: tanak model

تعداد نتایج: 2104307  

This paper describes the rainfall data generation processes, which were used to simplify the recharge model developed by Khazai and Spink. The principles of techniques used for single and two sites generation are discussed. The application of the techniques for extending the rainfall records at the existing stations and increasing arbitrarily the numbers of rain gauges within the catchment are ...

ژورنال: :فیزیک زمین و فضا 2010
محمدعلی شریفی بابک امجدی پرور موسی شیبانی

با توجه به کاربرد روز افزون توابع گویا (rational functions) در تصویرسنجی (فتوگرامتری) این معادلات مورد توجه محققان زیادی است. یکی از معایب این معادلات، ناپایداری مدل در برآورد پارامترها یا همان ضرایب است. در واقع مسئله برآورد ضرایب توابع گویا rfcs) rational function coefficients,) با استفاده از نقاط کنترل موجود در اغلب موارد یک مسئله ای بدطرح (ill-posed) است که باید روشی را برای پایدارسازی (reg...

Journal: :international journal of mining and geo-engineering 0
ali nouri qarahasanlou ph.d candidate of mine engineering in faculty of mining, petroleum & geophysics, shahrood university of technology, shahrood, iran mohammad ataei faculty member of mining engineering in faculty of mining, petroleum & geophysics, shahrood university of technology, shahrood, iran reza khalokakaie faculty member of mining engineering in faculty of mining, petroleum & geophysics, shahrood university of technology, shahrood, iran behzad ghodrati associate professor at luleå university of technology, lulea, sweden rasoul jafarei m.sc. of mining engineering of sahand university of technology, iran

tires represent a critical spare part in mines. there is a shortage of medium and large tires. in addition, with increased mining activities and the creation of new mines, the demand for tires has increased significantly. thus, it is particularly important for mining engineers to identify tire characteristics and correctly manage the spare part inventory. spare parts management is critical from...

Journal: :پژوهشنامه بازرگانی 0

the relationship between productivity of economic sectors, effective real exchange rate, and purchasing power is a burning economic issue. based on the “balassa – samuelson” theory, higher economic productivity for tradeable goods leads to an increase in effective real exchange rate which is indicative of higher value of domestic money and higher purchasing power of money. the purpose of this s...

Journal: :international journal of agricultural management and development 2013
mohammad reza rouniasi reza movahedi

the main purpose of this study was to investigate the relationship between organizational culture and knowledge management in hamedan's jihad- agriculture applied-scientific higher education center (hjaas). denison's organizational culture model and the building blocks of knowledge management model were used for finding this relationship. a descriptive correlative methodology was used. the stat...

Journal: :the modares journal of electrical engineering 2004
mohammad mahdi homayounpour jahanshahe kabudian

a parallel hybrid system of hmm and gmm modeling techniques was implemented and used in a telephony speaker verification and identification system. spectral subtraction and weighted projection measure were used to render this system more robust against additional noise. cepstral mean subtraction method was also applied for the compensation of convolution noise due to transmission channel degrad...

Journal: :journal of physical & theoretical chemistry 2013
m. ghasemloo n. nikdel m. r. soltani m. firoozi f. soheilian

in this paper we studied the thermal negativity in a two-qubit xx spin ½ chain model and xxx spin1/2 chain model(isotropic heisenberg model)spin-1/2 chain subjected to an external magnetic field inz direction. we calculate analytical relation for the thermal negativity for two qubit xx and xxx spinchain models in the external magnetic field. effects of the magnetic field and temperature on then...

Journal: :international journal of nanoscience and nanotechnology 2015
m. h. korayem m. taheri a. h. korayem z. rastegar

nanotechnology involves the ability to see and control individual atoms and molecules which are about 100 nanometer or smaller. one of the major tools used in this field is atomic force microscopy which uses a wealth of techniques to measure the topography and investigates the surface forces in nanoscale. friction force is the representation of the surface interaction between two surfaces an...

Journal: :international journal of advanced biological and biomedical research 2014
jafar jamdar morad pasha eskandarinasab

in this research genetic and phenotypic parameters were estimated using linear and threshold models, for reproductive traits, data from 6 large industrial dairy herd of east azerbaijan province collected by agriculture jihad organization during 10 years (2001-2010). best linear unbiased predictions of traits breeding values were estimated using restricted maximum likelihood method by wombat sof...

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