نتایج جستجو برای: complex permeability spectra

تعداد نتایج: 929634  

Journal: :geopersia 2013
mahdi rastegarnia ali kadkhodaie-ilkhchi

accurate permeability estimation has always been a concern in determining flow units, assigning appropriate capillary pressure andrelative permeability curves to reservoir rock types, geological modeling, and dynamic simulation.acoustic method can be used as analternative and effective tool for permeability determination. in this study, a four-step approach is proposed for permeability estimati...

Journal: Geopersia 2013

Accurate permeability estimation has always been a concern in determining flow units, assigning appropriate capillary pressure andrelative permeability curves to reservoir rock types, geological modeling, and dynamic simulation.Acoustic method can be used as analternative and effective tool for permeability determination. In this study, a four-step approach is proposed for permeability estimati...

1996
Craig A. Grimes Janet K. Lumpp

We examine the low frequency BH loop and complex permeability spectra of multilayer permalloy films laser processed to define samples consisting of stripes parallel to the as-deposited hard axis. We begin by examining different laser energy densities for groove definition in films of different thickness. We observe that for well coupled multilayer films with thin, 15 nm, spacer layers the demag...

Journal: :journal of sciences islamic republic of iran 0

in this research project, the nitrito nitro isomerization of [co (nh3)5no2]f2 complex has been studied. isomerization of this complex in the solid state follows a first order kinetics. the rate of isomerization at different temperatures was determined using a fourier transform lnfrared spectrophotometer. ? and ? are calculated at 298 k. the infrared, visible and ultraviolet spectra of this comp...

Journal: :فیزیک زمین و فضا 0
مریم روستایی دانش آموخته کارشناسی ارشد ژئوفیزیک، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران مجید نبی بیدهندی استاد، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران مهدی تدینی کارشناس ارشد ژئوفیزیک، شرکت ملی نفت ایران، تهران سیاوش ترابی دانشجوی دکتری ژئوفیزیک، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران

permeability is a property of porous medium that quantifies rock capacity to transmit fluids. frequently, core based permeability data are not available either because of the borehole conditions or due to the high cost of coring. for these reasons, over the years attempts have been made to estimate permeability by alternative ways. permeability is an elusive parameter in hydrocarbon reservoirs ...

Journal: :the iranian journal of pharmaceutical research 0
mir-jamal hosseini 1- faculty of pharmacy, shahid beheshti university of medical sciences, tehran, iran. 2- department of pharmacology and toxicology, school of pharmacy, zanjan university of medical sciences, zanjan, iran. 3- student research committee, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. fatemeh shaki shaki 1- faculty of pharmacy, shahid beheshti university of medical sciences, tehran, iran. 2- department of pharmacology and toxicology, school of pharmacy, mazandaran university of medical sciences, sari, iran. mahmoud ghazi-khansari department of pharmacology, school of medicine, tehran university of medical sciences, tehran, iran. jalal pourahmad faculty of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

arsenic exposure mainly through food and water has been shown to be associated with increased incidence of numerous cancers and non-cancer harmful health. it is also used in cancer chemotherapy and treatment of several cancer types due to its apoptogenic effects in the various cancer and normal cell lines. we have already reported that liver is the storage site and important target organ in as ...

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