نتایج جستجو برای: particle size index

تعداد نتایج: 1064497  

Journal: :iranian journal of pharmaceutical research 0
noratiqah mohtar school of pharmaceutical sciences, universiti sains malaysia, 11800 pulau pinang, malaysia. nurzalina khan school of pharmaceutical sciences, universiti sains malaysia, 11800 pulau pinang, malaysia. yusrida darwis school of pharmaceutical sciences, universiti sains malaysia, 11800 pulau pinang, malaysia.

solid lipid nanoparticles of atovaquone (atq-sln) were prepared by high shearhomogenization method using tripalmitin, trilaurin, and compritol 888 ato as the lipidmatrices and phospholipon 90h, tween 80, and poloxamer 188 as the surfactants. optimizationof the formulations was conducted using 6 sets of 24 full-factorial design based on fourindependent variables that were the number of homogeniz...

Journal: :علوم و تکنولوژی پلیمر 0
محمد دانشگر ابراهیم واشقانی فراهانی مهدی نکومنش حقیقی

in suspension polymerization, particle size distribution of polymer is the outcome of dynamic equilibrium between the break up and coalescence phenomena. the rates of break up and coalescence and consequently polymerization stability depend on several parameters, the most important of which are type and concentration of stabilizer. in this study, the effects of type and concentration of stabili...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده فیزیک 1390

in this thesis, barium ferrite nano particles were prepared by sol-gel method. their structural and magnetic properties of samples have been investigated using thermo gravimetric analysis (tg-dta), x-ray powder diffractometer (xrd), fourier transform infrared (ftir), scanning electron microscopy (sem), field emission scanning electron microscopy (fesem), ac susceptometer, vibrating sample magne...

Journal: :journal of petroleum science and technology 2015
ahmad tavasoli saba karimi rohollah keyaei

the influence of mo particle size on the catalytic activity and product selectivity of alkalized mos2 nanocatalysts has been investigated. nanocatalysts are prepared using a microemulsion technique with water-to-surfactant ratios of 1-12. three different techniques, including xrd, tem, and hydrogen chemisorption were used to determine the molybdenum average particle size and their activity and ...

2004
Michio Numata

Atherosclerosis begins in childhood. Protection from atherosclerosis is provided by high-density lipoprotein (HDL), a heterogeneous particle, which includes several subclasses differing in size, density and apolipoprotein content. The objective of this study was to document the relevance of assessing HDL particle size as another feature of dyslipidemia related to the develpment of atheosclerosi...

The present study was conducted to investigate the performance of different size reduction techniques including probe sonication, extrusion, and high pressure homogenization for nanosizing of niosomes. Also, the effects of cholesterol content and surfactant type on the size and poly dispersity index (PDI) of the formulations were evaluated. Various niosomal formulations composed of Brij 72, Spa...

The present study was conducted to investigate the performance of different size reduction techniques including probe sonication, extrusion, and high pressure homogenization for nanosizing of niosomes. Also, the effects of cholesterol content and surfactant type on the size and poly dispersity index (PDI) of the formulations were evaluated. Various niosomal formulations composed of Brij 72, Spa...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده برق و الکترونیک 1390

there are many approaches for solving variety combinatorial optimization problems (np-compelete) that devided to exact solutions and approximate solutions. exact methods can only be used for very small size instances due to their expontional search space. for real-world problems, we have to employ approximate methods such as evolutionary algorithms (eas) that find a near-optimal solution in a r...

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