نتایج جستجو برای: ray diffraction analysis

تعداد نتایج: 3082535  

M. Seyedsadjadi, N. Farhadyar S. Rashidzadeh

Core-shell 12-tungstophosphoric acid/TiO2 (HPW/TiO2) nanoparticles at 10 and 20% of HPW have been synthesized by simple in-situ sol- gel method. Characterization of the samples was carried out by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR). The X-ray diffraction patterns of as prepared solid samples, indicated characterist...

M. Seyedsadjadi, N. Farhadyar S. Rashidzadeh

Core-shell 12-tungstophosphoric acid/TiO2 (HPW/TiO2) nanoparticles at 10 and 20% of HPW have been synthesized by simple in-situ sol- gel method. Characterization of the samples was carried out by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR). The X-ray diffraction patterns of as prepared solid samples, indicated characterist...

Ali Ramazani Saeid Taghavi Fardood Sang Woo Joo

Magnesium oxide nanoparticles were synthesized using Arabic gum as a biotemplate andmagnesium nitrate as the magnesium source by the sol-gel method. This method has manyadvantages such as nontoxic, economic viability, ease to scale up, less time consuming andenvironmental friendly approach for the synthesis of MgO nanoparticles without using anyorganic chemicals. Nanoparticles were characterize...

Journal: :nanomedicine research journal 0
kazem marzban department of biomaterials, science and research branch, islamic azad university, yazd, iran sayed mahmood rabiee department of materials engineering , nanobiotechnology research group, babol university of technology, babol, iran

objective(s): cao–mgo–sio2 system bioceramics possess good characteristics for hard tissue engineering applications. the aim of the study was to synthesize the nano powder by using a sol-gel method and evaluate of bioactivity in the cells culture. methods: to characterize of powder x-ray diffraction (xrd), transmission electron microscopy (tem) and to evaluate the bioactivity sample cell seedin...

Journal: :journal of chemical health risks 0
hashem akhlaghi department of chemistry, sabzevar branch, islamic azad university, sabzevar, iran sedighe sadat akhlaghi assistant professor, department of nephrology, shahid beheshti medical university, tehran, iran

an aqueous extract of pimpinella anisum was used for green synthesis of silver nanoparticles by bio reduction of an aqueous solution of silver nitrate. silver nanoparticles were characterized by uv–vis spectrometry, fourier transform infrared spectroscopy (ftir), x-ray diffraction (xrd) analysis, scanning electron microscopy (sem) and energy-dispersive x-ray analysis (edax). the increase in abs...

2006
J C Grivel O Eibl B Birajdar J Homeyer

MgB2 wires, tapes and bulk samples produced within the EU-funded HIPERMAG project have been studied by a combination of X-ray diffraction and electron microscopy. The reaction layers forming at the interface between the ceramic core and Fe or Ni sheaths can be studied with both methods. The complementary techniques enable to study both the microstructure and the formation kinetics of the interf...

2017
Andrea Thorn James Parkhurst Paul Emsley Robert A. Nicholls Melanie Vollmar Gwyndaf Evans Garib N. Murshudov

In this paper, AUSPEX, a new software tool for experimental X-ray data analysis, is presented. Exploring the behaviour of diffraction intensities and the associated estimated uncertainties facilitates the discovery of underlying problems and can help users to improve their data acquisition and processing in order to obtain better structural models. The program enables users to inspect the distr...

2013
V. Krastev G. K. Exner

The paper invites the reader to recall the 100 years long history of X-rays diffraction discovery, advancement and achievements with great impact on our daily life. Let us pay a tribute to the founders of X-ray diffraction and emphasize the importance of their work for our modern understanding of matter. Special honor has to be given to Max von Laue, who discovered in 1912 that X-rays are elect...

Journal: :iranian journal of pharmaceutical research 0
martins emeje department of pharmaceutical technology and raw materials development, national institute for pharmaceutical research and development, idu, p.m.b.21 garki-abuja, nigeria. christiana isimi department of pharmaceutical technology and raw materials development, national institute for pharmaceutical research and development, idu, p.m.b.21 garki-abuja, nigeria. stephen byrn department of medicinal chemistry and physical pharmacy, purdue university, indiana, usa. joseph fortunak department of chemistry, howard university, usa. olobayo kunle department of pharmaceutical technology and raw materials development, national institute for pharmaceutical research and development, idu, p.m.b.21 garki-abuja, nigeria. sabinus ofoefule department of pharmaceutical technology and industrial pharmacy university of nigeria, nsukka, enugu state, nigeria.

this paper is the first multi-scale characterization of the fluidize-dried gum extracted from the fresh fruits of the plant abelmoschus esculentus. it describes the physical, thermal, sorptional and functional properties of this natural gum. elemental analysis, scanning electron microscopy (sem), particle size analysis, x-ray powder diffraction (xprd), thermo-gravimetric analysis (tga), differe...

Zahra Sharafi

The X-ray charge density analysis of a hydroxynaphthoquinnne derivative was obtained by multipolar Hansen-Coppens formalism refinement through high resolution X-ray diffraction data at 100(1) K. The molecularproperties of the title compound resulted from the combined experimental and the quantum theory of atoms inmolecules (QTAIM) studies. The topological properties of the covalent bonds and of...

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