نتایج جستجو برای: ray analysis

تعداد نتایج: 3061922  

Journal: :journal of nanostructures 2013
m. m. larijani p. balashabadi h. seyedi e. jafari-.khamse

titanium nitride-copper (tin-cu) nanocomposite films were deposited onto stainless steel substrate using hollow cathode discharge ion plating technique. the influence of cu content in the range of 2-7 at.% on the microstructure, morphology and mechanical properties of deposited films were investigated. structural properties of the films were studied by x-ray diffraction pattern. topography of t...

2004
Atsushi Umeda Hajime Hirose

X-ray diffraction observation of metal fracture provides fracture analysis with useful information on the mechanics and mechanical conditions of fracturing. This method is called “X-ray Fractography” and has been developed especially in Japan as a new engineering tool for fracture analysis[1-3]. X-ray fractographic technique was applied to fracture surface of dental material. The relationship b...

B. Dole, V. Mote,

Mn doped ZnO nanocrystals were prepared by co-precipitation route sintered at 450 °C temperature. XRD results indicate that the samples having hexagonal (wurtzite) structure. From X-ray data it is found that the lattice parameters increase with increasing Mn concentration. The X-ray density decreases with increasing Mn concentration of Zn 1-x Mnx O nanocrystals. It indicates that the Mn...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده جغرافیا 1392

در این پژوهش به منظور برآورد تابش خالص برای مکان یابی نیروگاه های خورشیدی با پردازش تصاویر ماهواره ای در استان کردستان از دو روش sebal و روش solar analysis استفاده شده است در روش sebal از داده های تصاویر ماهواره ای مودیس 2000، 2003، 2006، 2009، 2012 داده های ساعات آفتابی در7 ایستگاه سینوپتیک در سطح استان کردستان ( داده های روزانه) و برای روش solar analysis از تصاویر دم منطقه با قدرت 30 و 90 متر...

احمدی, کامران, اسماعیل نیا شیروانی, عباس, توفیق, عاطفه, کتابداری, محمدرضا ,

X-ray diffraction (XRD) technique is commonly used for qualilative ana lysis of minerals, and has also been successfully used for quantitative measurements. In this research, the matrix fl ushing and a new X-ray diffraction method have been used for the determination of crystallinity and amorphous content of Opal and Quartz mixture. The PCAPD is used to detemline the quanti tative analysi...

Hossein Faghihian Mahdi Kamali, Sedigheh Vaezifar

In this research Na-Y was synthesized by hydrothermal method and used as support for preparation of Sn/Pt/Na-Y catalysts using two different tin precursors, Bu3Sn(Cl) and SnCl2.2H2O, by sequential impregnation, in which the Pt  was deposited first and in the next step Sn was deposited. The catalysts were characterized by H2 chemisorption, transmis...

Journal: :journal of nanostructures 2016
s. r. yousefi m. salavati-niasari d. ghanbari

nickel hydroxide nanostructures were synthesized by a hydrothermal reaction. the effect of different precursors and surfactants on the morphology of nickel hydroxide nanostructures was investigated. nanostructures were characterized by x-ray diffraction, energy dispersive x-ray spectroscopy, scanning electron microscopy and fourier transform infrared  spectroscopy. the influence of ni(oh)2 nano...

Journal: :international journal of nano dimension 0
m. seyedsadjadi department of chemistry, science and research branch, islamic azad university, tehran, iran s. rashidzadeh department of chemistry, science and research branch, islamic azad university, tehran, iran n. farhadyar department of chemistry, varamin –pishva branch, islamic azad university, varamin, iran

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 characteristic peaks of titania wi...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2011
Tomoharu Asahi Shinji Kobayashi Kenichi Nakayama Takayuki Konya Go Fujinawa Toshihiro Nakamura

A standard material containing chrysotile asbestos for the validation of x-ray diffractometric quantitation was developed using an asbestos-containing building material i.e., perlite board. The board as the base material was crushed, pulverized, and homogenized. The homogeneity of the powder of perlite board was estimated by analysis of variance. The diffraction intensity values of the crystall...

احمدی, عباس, احمدی, کامران, خالقی, شکوفه,

Cherenkov radiation is generated when relativistic charged particles move in a medium with refractive index larger than unity. Although, the refractive index is generally smaller than unity in X-ray region, in the vicinity of atomic absorption edges, the refractive index may exceed unity and Cherenkov radiation can be generated in soft X-ray region with a narrow band width. In this paper, the s...

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