نتایج جستجو برای: specific surface

تعداد نتایج: 1609759  

Urbanization brings biophysical changes in the composition of the landscape. Such change has an impact on the thermal environment locally. The urban mosaic of land use and land cover is thus characteristically composed of local climate zones. The spatial variation in the land surface temperature across specific zone is studied for Bhopal city. The objective of the study was to understand how th...

Journal: :شیمی کاربردی 0
سید رضا عظیمی پیرسرائی حسن اصیلیان مهابادی احمد جنیدی جعفری زهره فرهمند کیا جعفر تاران

the characterizations of natural diatomite from birjand deposit (iran) were studied such as chemical compositions, specific surface area, total pore volume, pore size distribution and xrd. the diatomite that was treated only with sulfuric acid displayed a larger surface area, expanded total pore volume and increased pore size in comparison with both washed natural diatomite with deionized water...

Journal: :cell journal 0

introduction: toxoplasma gondii is a protozoan parasite which is globally prevalent in human and animals. toxoplasma infection is commonly asymptomatic, but can cause serious medical problems in immunocompromised individuals and in fetus. recombinant antigens of the parasite may be helpful in diagnosing the infection more precisely. the goal of this study was to construct and evaluate the funct...

Journal: :iranian journal of catalysis 2012
fatemeh tamaddon somayeh moradi

easily prepared nanozno was found to be as an efficient catalyst in the synthesis of 1,4-dhps via four-component reaction of 1,3-dicarbonyls, aldehydes and ammonium carbonate in water at 60 °c. the prepared nanozno was characterized by xrd and ft-ir analysis, while the determined specific surface area of nano catalyst by bet method was 33 m2/g.

Journal: :applied food biotechnology 0
zahra goudarzi seyed abbas shojaosadati department of chemical engineering, tarbiat modares university, tehran reza hassan sajedi amir maghsoudi

background and objectives: auto-induction is usually employed to achieve high cell density and overproduction of proteins with a simple and low-cost operation. the efficiency of heterologous protein expression in escherichia coli is determined by different parameters. interactions between these parameters usually complicate the identification of those that contribute more to the improvement of ...

ژورنال: Physical Treatments 2013

Abstract Objective: Comparison of global and local abdominal muscles thickness in chronic non-‎specific low back pain patients with healthy controls in position of hook-lying over variant ‎stability surface utilizing diagnostic ultrasonography Methods and Materials: ‎ ‎20 chronic non-specific low back pain male patients compared with a convenient sample of ‎age and gender matched healthy con...

In this study, two new Ni/La-Al2O3 catalysts were prepared by a sol-gel method, with different aluminium precursors (aluminium triisopropoxide and aluminium nitrate). The catalysts were characterized by scanning electron microscope (SEM), X-ray fluorescence (XRF), X-ray diffraction (XRD), BET specific surface area, and particle size analysis (PSA) techniques. The BET results showed that the par...

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