نتایج جستجو برای: mean particle size

تعداد نتایج: 1227843  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
fatemeh zabihi mohammad mahdi akbarnejad ali vaziri yazdi mahdi arjomand ali akbar safekordi

dissolution pressure and nozzle temperature effects on particle size and distribution were investigated for ress (rapid expansion of supercritical solution) process. supercritical co2 was used as solvent and ibuprofen was applied as the model component in all runs. the resulting ibuprofen nano-particles (about 50 nm in optimized runs) were analyzed by sem and laser diffraction particle size ana...

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: :iranian endodontic journal 0
elham soheilipour researcher, dental research center, shahid beheshti university of medical sciences, tehran, iran. sanam kheirieh researcher, iranian center for endodontic research, shahid beheshti university of medical sciences, tehran, iran. majid madani researcher, sympatec co., tehran, iran. alireza akbarzadeh baghban department of biostatistics, paramedical school, shahid beheshti university of medical sciences, tehran, iran. saeed asgary department of endodontics, iranian center for endodontic research, dental research center, dental school, shahid beheshti university of medical sciences, tehran, iran.

introduction: particle size and distribution can influence the properties of materials. this study analyzed and compared the particle size of root mta, calcium hydroxide (ch), and a new endodontic cement called calcium enriched material (cem). materials and methods: the particle size of each material was analyzed three times using 0.05 mg of test material with a particle size analyzer. the part...

Journal: :international journal of preventive medicine 0
kazuhiko kotani kokoro tsuzaki nobuyuki taniguchi naoki sakane

objectives: small dense low‑density lipoprotein (sdldl) which has a small ldl particle size with greater susceptibility to oxidation is regarded as a risk marker for cardiovascular disease. the diacron reactive oxygen metabolites (d‑roms) test has recently been introduced as an oxidative stress‑related marker in the clinic. the aim of the present study was to investigate the correlation between...

Journal: :Journal of the Mining and Metallurgical Institute of Japan 1955

Journal: :Applied optics 1995
F Ferri A Bassini E Paganini

A modified version of the nonlinear iterative Chahine algorithm is presented and applied to the inversion of spectral extinction data for particle sizing. Simulated data were generated in a λ range of 0.2-2 µm,and particle-size distributions were recovered with radii in the range of 0.14-1.4 µm. Our results show that distributions and sample concentrations can be recovered to a high degree of a...

Journal: :iranian journal of pharmaceutical sciences 0
mortaza mozaffari physics department, isfahan university, isfahan, iran nanophysics research group, center for nanosciences and nanotechnology research, isfahan university, isfahan, iran behshid behdadfar physics department, isfahan university, isfahan, iran jamshid amighian physics department, isfahan university, isfahan, iran nanophysics research group, center for nanosciences and nanotechnology research, isfahan university, isfahan, iran

in this work, mn ferrite nanopowders were prepared by co-precipitation method and were characterized. phase identification of the nanopowders was performed by x-ray diffraction method and the mean particle size of the nanopowders was calculated by scherrer's formula, using necessary corrections. magnetic parameters of the prepared nanopowders were measured by a vibrating sample magnetomete...

Vibration signals were measured in a lab-scale fluidized bed to investigate the changes in particle sizes. Experiments were carried out in the bed with a different mass fraction of coarser particles at different superficial gas velocities, and probe heights. The S-statistic test evaluates the dimensionless squared distance between two attractors reconstructed from time series of vibration signa...

Journal: Poultry Science Journal 2018
Addo A AGYEI TA,

There is a general agreement between researchers that particle size of poultry feed should be between the size ranges of 600-900 µm. This study investigated the particle size of poultry feed produced in the Dormaa Municipality of Ghana. A survey was conducted on various feed mills which were made up of nine on-farm mills and five community-based commercial mills. Feed samples were collected fro...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید