نتایج جستجو برای: dfn model
تعداد نتایج: 2104440 فیلتر نتایج به سال:
abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...
X linked recessive deafness accounts for only 1.7% of all childhood deafness. Only a few of the at least 28 different X linked syndromes associated with hearing impairment have been characterised at the molecular level. In 1960, a large Norwegian family was reported with early onset progressive sensorineural deafness, which was indexed in McKusick as DFN-1, McKusick 304700. No associated sympto...
This paper summarizes the advances made by the DiFrancesco and Noble (DFN) model of cardiac cellular electrophysiology, which was published in Philosophical Transactions B in 1985. This model was developed at a time when the introduction of new techniques and provision of experimental data had resulted in an explosion of knowledge about the cellular and biophysical properties of the heart. It a...
Analysis of the stability slopes in fractured rock masses is not trivial and fraught with uncertainty risk. A DFN-DEC model (Discrete Fracture Network-Distinct Element Code) based on MATLAB platform developed to evaluate random fractures. Then, influences mean values geometric characteristics (i.e., trace length T, dip D, spacing S) for both horizontal (denoted 1) inclined 2) fractures slope ar...
مدل‌سازی هندسی- تصادفی سه بعدی توده سنگ منطقه مزینو با هدف برآورد نشت گاز در استخراج به روش گاز کردن
در ایران بخش زیادی از ذخایر زغالسنگ در عمق واقع شده و یا ضخامت کمی دارند که برای استحصال و استفاده از این منابع، فناوری گاز کردن زیرزمینی زغالسنگ (UCG) می‌تواند به‌عنوان بهترین گزینه مطرح باشد. یکی از این ذخایر زغالسنگ، زغالسنگهای منطقه مزینو طبس است. از جمله معیارها و عوامل تأثیرگذار بر امکانپذی...
In pressure sensitive reservoirs, interaction effects among the porous media flow field, the fracture field and the stress field can cause some specific flow characteristics entirely different from those in conventional reservoirs. Dynamic fracture behavior is one of them, which generates a change in the value of fracture aperture and even a variation in the anisotropy of permeability. In this ...
In this study, variable injection-rate technology was numerically investigated in a pre-existing discrete fracture network (DFN) formation, the Tarim Basin in China. A flow-stressdamage (FSD) coupling model has been used in an initial attempt towards how reservoir response to variable injection-rates at different hydraulic fracturing stages. The established numerical model simultaneously consid...
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