Hamid Reza Ramazia
Department of mining, Imam Khomeini International Qazvin University, Qazvin, Iran
[ 1 ] - Estimation of Iron concentration by using a support vector machineand an artificial neural network - the case study of the Choghart deposit southeast of Yazd, Yazd, Iran
Estimation of the metal value in the metallic deposits is one of the important factors to evaluate the deposits in exploration studies andmineral processing. Therefore, one accurate estimator is essential to obtain a fine insight into the accumulation of the ore body. Thereare geostatistical methods for the estimation of the concentration of iron which performance of these models is complexity ...
[ 2 ] - 3D model construction of induced polarization and resistivity data with quantifying uncertainties using geostatistical methods and drilling (Case study: Madan Bozorg, Iran)
Madan Bozorg is an active copper mine located in NE Iran, which is a part of the very wide copper mineralization zone named Miami-Sabzevar copper belt. The main goal of this research work is the 3D model construction of the induced polarization (IP) and resistivity (Rs) data with quantifying the uncertainties using geostatistical methods and drilling. Four profiles were designed and surveyed us...
[ 3 ] - تعیین تنش برجا جهت بررسی آنالیز پایداری چاه تحت شرایط همسان‌گردی عرضی
تنشهای برجا فاکتوری کلیدی است که در بسیاری از مسائل مرتبط با سنگ و در زمینههای مهندسی نفت نظیر پایداری دیواره چاه و شکست هیدرولیکی از اهمیت بالایی برخوردار است. عمدتاً از روشهای مستقیم که پرهزینه و زمانبر هستند؛ جهت تخمین تنشهای برجا استفاده میشود. همچنین روشهای مستقیم نتایج را محدود به عمق خاصی میکنند که نمیتوان آنرا به کل چاه تعمیم داد. در این مقاله از دو روش غیرمستقیم پرکاربرد در تخ...
[ 4 ] - برآورد خطر زمینلرزه در استان مرکزی
Evaluation of intercity trips may be used for anticipation of trip demands, services’ pricing and improvement of the studies for contradiction determination. Usage of trip demand modeling processes, like what existed in the classic method for analyzing urban trip demand, would make the analysis of road trips possible. A substitute method for 4 Steps Models is to use Direct Demand Modeling whic...
[ 5 ] - A programming method to estimate proximate parameters of coal beds from well-logging data using a sequential solving of linear equation systems
This paper presents an innovative solution for estimating the proximate parameters of coal beds from the well-logs. To implement the solution, the C# programming language was used. The data from four exploratory boreholes was used in a case study to express the method and determine its accuracy. Then two boreholes were selected as the reference, namely the boreholes with available well-logging ...
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