نتایج جستجو برای: effective permeability

تعداد نتایج: 730838  

Journal: : 2022

A composite material based on ellipsoidal inclusions distributed in a bonding medium is considered. formula obtained for calculating the effective dielectric constant of such material, taking into account presence layer binder inclusions, which prevents their direct contact. It shown that calculated values correspond to experimental sections conductive fibers. Keywords: radar absorbing structur...

1999
Sanjay Srinivasan Andre G. Journel

Well testing provides critical information about the effective permeability value around the well being tested. That information must be integrated with higher resolution, smaller scale, well log data. The difference of scale is handled by tilging with “block” averages, while the non-linear averaging of permeability values is addressed by working on specific non-linear power transform of the or...

2013
Pinkun Guo Yuanping Cheng

The coal permeability is an important parameter in mine methane control and coal bed methane (CBM) exploitation, which determines the practicability of methane extraction. Permeability prediction in deep coal seam plays a significant role in evaluating the practicability of CBM exploitation. The coal permeability depends on the coal fractures controlled by strata stress, gas pressure, and strat...

Journal: :the iranian journal of pharmaceutical research 0
abbas ahmadi department of chemistry, faculty of science, islamic azad university, karaj branch, karaj, iran. mohsen khalili department of physiology, neuroscience and herbal medicine research center, shahed university, tehran, iran. shahnaz chavrogh department of chemistry, faculty of science, islamic azad university, karaj branch, karaj, iran. babak nahri-niknafs department of chemistry, faculty of science, islamic azad university, karaj branch, karaj, iran

cyclizine (1-benzhydryl-4-methyl-piperazine, cas 82-92-8, cyc, i), a piperazine derivative, belongs to h1 antihistamine group of drugs that shows such pharmacological properties as anti-inflammatory, anti-allergic and anti-platelet effects, similar to other h1-receptor antagonists. in this study, two new tolyl and cumene derivatives of i (1-ethyl-4-[(p-isopropylphenyl) (p-tolyl) methyl]-piperaz...

Armita Azarpanah Behzad Sharif Makhmalzadeh, Shiva Torabi

     The topical delivery of non-steroidal anti-inflammatory drugs (NSAIDS) such as Ibuprofen has been explored as a potential method of avoiding the first pass effects and the gastric irritation, which may occur when used orally. Ibuprofen is formulated into many topical preparations to reduce the adverse effects and simultaneously avoid the hepatic first-pass metabolism as well. However, it i...

Armita Azarpanah Behzad Sharif Makhmalzadeh, Shiva Torabi

     The topical delivery of non-steroidal anti-inflammatory drugs (NSAIDS) such as Ibuprofen has been explored as a potential method of avoiding the first pass effects and the gastric irritation, which may occur when used orally. Ibuprofen is formulated into many topical preparations to reduce the adverse effects and simultaneously avoid the hepatic first-pass metabolism as well. However, it i...

2008
C. Anderson V. Sivakumar

A variety of clay specimens (Kaolin, Belfast Upper Boulder Clay and Belfast Sleech) were subjected to British Standards Triaxial Permeability Tests and Accelerated Permeability Tests in order to examine how the permeability predicted (under uniform effective stresses and conditions) varied depending on the testing method adopted. The specimens were then freeze-dried to preserve their post-test ...

2002
Jef Caers Sunderrajan Krishnan Yuandong Wang Anthony R. Kovscek

History matching large reservoir models under a realistic geological continuity constraint remains an outstanding problem. We propose a new combined geostatistical and streamline-based method potentially capable of history matching large reservoir models, while accounting consistently for geological continuity as provided by a permeability histogram and variogram, and production data. While mos...

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