نتایج جستجو برای: nano particle

تعداد نتایج: 221788  

2005
SHAOPING XIAO WEIXUAN YANG Shaoping Xiao Weixuan Yang

Since meshfree particle methods have advantages on simulating the problems involving extremely large deformations, fractures etc., they become attractive options to be used in the hierarchical multiscale modeling to approximate a large number of atoms. We propose a nanoscale meshfree particle method with the implementation of the quasicontinuum technique in this paper. The intrinsic properties ...

Journal: :international journal of nano dimension 0
m. khatamifar department of chemistry, faculty of sciences, shahid bahonar university of kerman, kerman, iran. z. rashidi ranjbar department of chemistry, faculty of sciences, shahid bahonar university of kerman, kerman, iran. s. j. fatemi department of chemistry, faculty of sciences, shahid bahonar university of kerman, kerman, iran.

this work reports a facile sonochemical route in the synthesis of nano particle of deferasirox for the first time. one application of nanotechnology is in improvement of available treatments for various diseases. deferasirox (icl670 or exjade) is a tridentate chelating agent for removing transfusion overload iron in thalassemia patients. in the present work, deferasirox was prepared in nano size...

Journal: :International Journal of Nanomedicine 2006
Ian O Smith Laura R McCabe Melissa J Baumann

Porous bone tissue engineering scaffolds were fabricated using both nano hydroxyapatite (nano HA) powder (20 nm average particle size) and micro HA powder (10 microm average particle size), resulting in sintered scaffolds of 59 vol% porosity and 8.6 +/- 1.9 microm average grain size and 72 vol% porosity and 588 +/- 55nm average grain size, respectively. Scanning electron microscopy was used to ...

2016
Qiqi PENG Wei CAO Wentao ZHOU Zhongqi HE Wei JIANG Wanghua CHEN Q. Peng W. Cao W. Zhou Z. He W. Jiang W. Chen

The electrostatic hazards of nitramine explosives (RDX, HMX) were assessed in this paper. The resistivities of different particle-size RDX and HMX were tested by a device designed and manufactured according to the standard ISO/ IEC 80079-20-2:2016. This work shows that the resistivities of uncompacted RDX and HMX increase as the particle size decreases. Charging characteristics test experiments...

2011
POLURI KOTESWARI SISTLA RAMA KRISHNA VEERAREDDY PRABHAKAR REDDY LAKSHMI M NARASU

The objective of present work was development of felodipine nano emulsion formulations using sesame oil as sole lipid phase by high pressure homogenization technique. A combination of non-ionic surfactants was used based on HLB (Hydrophilic lipophilic balance) values. The resultant nano emulsions were characterized for particle size, zeta potential. The particle size for the optimized nano emul...

2013
A. Takahashi A. Kitamura A. Taniike Y. Furuyama R. Seto T. Tahara

To study the anomalous heat effect of Nibased binary-metal-nano-powder samples by gas-phase hydrogen isotope absorption/desorption, three kinds of samples CNZ, CNZ-II and NZ were tested for the temperature range 300-573 K. The highest excess heat power, ca. 2W/g-Ni was obtained with CNZ at 573 K. Peculiar H(D)-isotopic effect and sudden heat sink by abrupt H(D)-desorption were observed. The hea...

2006
K. Mylvaganam L. C. Zhang C. D. Cheong

This paper uses the molecular dynamics method to investigate the influence of chemical bonds on the mechanical behaviour of nanotube–polyethylene composites subjected to nano-particle impacts. In the analysis, carbon nanotubes (CNTs) were incorporated into the polyethylene (PE) matrix in two ways, with and without radical centres, so that the resulting nano-composites had two corresponding prop...

ژورنال: سلامت کار ایران 2014
باکند, شهناز, رضایی فرد, بهزاد, صدیق زاده, اصغر, علمدار خسرقی, مرضیه, فرشاد, علی اصغر, مرادی, غلامرضا, یاراحمدی, رسول,

  Background and aims: Nano-fibrous mats are one of the unique nonwoven materials that have been recently carried out in nanofiltration industry. The aim of this study was to synthesize nano-fibrous path mats using electrospining method following by determination of their efficiency for nanoaerosols removal. Methods: The efficiency and pressure drop of nano-fibrous mats was measured using nano-...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
sajedeh bahrani babak ghanbarzadeh hamed hamishekar mahmud sowti khiabani

encapsulation of bioactive ingredient and production of nano carriers in order to food enrichment and production of functional food is one of the applications of nano technology in food science and pharmaceutical. nano carriers are produced using biopolymers (proteins and polysaccharids) or lipid based materials. in this research, production and characterization of pectin-casein nanocomplexes a...

Journal: :international journal of nano dimension 0
s. sadegh hassani catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran a. rashidi catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran m. adinehnia catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran n. montakhab catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran

this study is focused on synthesis of nano-colloidal silica via alkaline water glass solution. sodium ions of water glass were removed by cation exchanging in a resin column to obtain the silicic acid which was titrated to the solution of sodium silicate. concentration of the colloidal silica and ph value of the solutions were controlled using different concentrations of alkaline sodium silicat...

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