نتایج جستجو برای: well log

تعداد نتایج: 1588823  

Journal: :جنگل و فرآورده های چوب 0
مجید لقمانپور ؛ دانشجوی دکتری جنگل داری، دانشگاه ملی اراضی ارمنستان، کارشناس سازمان جنگل ها، مراتع و آبخیزداری، تهران، ایران محسن الهی دانش آموختة کارشناسی ارشد جنگل داری، دانشکدة منابع طبیعی، تربیت مدرس، نور، ایران علی یخکشی استاد دانشکدة منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران ژهائیر واردانیان استاد دانشگاه ملی اراضی، ایروان، ارمنستان

in order to investigate the effects of  management models on the diversity of wooden species, forests of third series of shiler, the first division mehrbanrud watershed and third and fourth series of eight division of behshahr – neka townships were studied with participatory and governmental management respectively. the diversity of the wooden species have been evaluated by diversity parametric...

Journal: :journal of chemical and petroleum engineering 2011
amir abbas askari turaj behrouz

rock selection in modeling and simulation studies is usually based on two techniques; routinely defined rock types and those defined by special core analysis (scal). the challenge in utilizing these two techniques is that they are frequently assumed to be the same, but in practice, static rock-types (routinely defined) are not always representative of dynamic rock-types (scal defined) in the re...

Rock selection in modeling and simulation studies is usually based on two techniques; routinely defined rock types and those defined by special core analysis (SCAL). The challenge in utilizing these two techniques is that they are frequently assumed to be the same, but in practice, static rock-types (routinely defined) are not always representative of dynamic rock-types (SCAL defined) in the re...

Journal: :فیزیک زمین و فضا 0
مصطفی عباسی دانشجوی کارشناسی ارشد ژئوفیزیک، گروه فیزیک زمین، مؤسسه ژئوفیزیک دانشگاه تهران، ایران محمدعلی ریاحی دانشیار، گروه فیزیک زمین، مؤسسه ژئوفیزیک دانشگاه تهران، ایران

in exploration seismology, estimation of elastic parameters of rocks using seismic amplitudes is considered as inverse problems. nowadays, model-based and more generally optimization-based algorithms are of the most common methods of seismic inversion. these algorithms which are known as deterministic methods, are suffering from two main problems; first, vertical resolution of outputs is very l...

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