نتایج جستجو برای: particle concentration

تعداد نتایج: 544567  

Journal: :Journal of Architecture, Planning and Environmental Engineering (Transactions of AIJ) 1987

Journal: :علوم و تکنولوژی پلیمر 0
ساجده بحرانی دانشگاه تبریز، دانشکده کشاورزی بابک قنبرزاده دانشگاه تبریز، دانشکده کشاورزی حامد همیشه کار دانشگاه علوم پزشکی تبریز محمد یار حسینی مرند، مرکز تحقیق و توسعه شرکت تکدانه

the biopolymer-based nanocomplexes are a group of nanocapsules that are used for encapsulation and control delivery of nutraceuticals. they are formed by binding of proteins and polysaccharides. in this study, complex formation between pectin and sodium caseinate was taken place by addition of pectin solutions(0.2, 0.45 and 0.7 % w/v) into the caseinate solutions (0.5, 1 and 1.5 % w/v) and adju...

Silver-Polyaniline (Ag-PANI) nanocomposites were prepared by in-situ oxidative polymerization of aniline monomer in sodium bis(2-ethylhexyl) sulfosuccinate (AOT) solution as an emulsifier. The synthesis of Silver-Polyaniline nanocomposites was investigated as a function of several parameters such as aniline concentration, concentration of emulsifier (AOT), concentration of oxidation agent and c...

Silver-Polyaniline (Ag-PANI) nanocomposites were prepared by in-situ oxidative polymerization of aniline monomer in sodium bis(2-ethylhexyl) sulfosuccinate (AOT) solution as an emulsifier. The synthesis of Silver-Polyaniline nanocomposites was investigated as a function of several parameters such as aniline concentration, concentration of emulsifier (AOT), concentration of oxidation agent and c...

Journal: :The Annals of occupational hygiene 2006
Thomas M Peters Darrin Ott Patrick T O'Shaughnessy

This study compared the response of two optical particle counters with that of an aerodynamic particle sizer. The optical particle counters rely on the amount of incident light scattered at 90 degrees by a particle to measure particle number concentration by optical particle size. Two models of optical particle counters from Grimm Technologies were used: the portable aerosol spectrometer (PAS) ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
fariba shadmobaraki seyed siamak ashraf talesh

in this study, confined impinging liquid jets are used to produce nanoparticles of carbamazepine (cbz). the effect of operating parameters, such as the kind of solvent,cbz concentration, flow rate of solution and antisolvent on particle size, are experimentally investigated. the scanning electron micrograph (sem) photomicrographs show that nanodrug with smaller particle is achievable by using s...

G. Amba Prasad Rao, N. Gajarlawar,

The current regulated particle metric in vehicle emissions is the total mass, while during last decade interest in number size distribution has increased. Various international studies on epidemiology and toxicology have reported the adverse effect of the particle matter on public health. The UNECE group of experts on pollution and energy (GRPE) under particle measurement program (PMP) are u...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
m aali-kordkolaei school of chemical engineering, college of engineering, university of tehran, tehran, iran r zarghami school of chemical engineering, college of engineering, university of tehran, tehran, iranسازمان اصلی تایید شده: دانشگاه تهران (tehran university) s mirzakhanlouei medicinal plants research center, institute of medicinal plants, acecr, karaj, iranسازمان اصلی تایید شده: دانشگاه تهران (tehran university) sh rezazadeh medicinal plants research center, institute of medicinal plants, acecr, karaj, iranسازمان اصلی تایید شده: پژوهشکده‮ ‬گیاهان‮ ‬دارویی‮ ‬جهاد‮ ‬دانشگاهی (institute of medicinal plants) r hajiaghaee medicinal plants research center, institute of medicinal plants, acecr, karaj, iranسازمان اصلی تایید شده: پژوهشکده‮ ‬گیاهان‮ ‬دارویی‮ ‬جهاد‮ ‬دانشگاهی (institute of medicinal plants) r ghaffarzadegan medicinal plants research center, institute of medicinal plants, acecr, p.o.box: 31375/1369, karaj, iran tel: +98-26-34764010-18, fax: +98-26-34764021سازمان اصلی تایید شده: پژوهشکده‮ ‬گیاهان‮ ‬دارویی‮ ‬جهاد‮ ‬دانشگاهی (institute of medicinal plants)

background: l-menthol [(1r,3r,4s)-(-)-menthol] is a flavoring that is the main component of mint herb essential oils, especially of the mentha piperita and mentha arvensis species. its low solubility in aqueous systems makes precise formulation necessary in the final products. of the methods available for fabrication of nanoparticles for use in pharmaceuticals, electrospraying is easy and requi...

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