نتایج جستجو برای: ray diffraction pattern

تعداد نتایج: 665923  

Journal: :journal of agricultural science and technology 2014
a. sankhon i. amadou w. yao h. wang h. qian

parkia biglobosa starch was subjected to different heat-moisture treatment (hmt) at different moisture contents (15, 20, 25, and 30%) at 110oc for 16 hours. the content of resistant starch (rs) was the lowest (33.38%) in the untreated native parkia and increased in the samples with hmt-15 (37.79%), hmt-30 (39.64%), hmt-25 (46.63%), and hmt-20 (50.14%), showing significant increase (p < 0.05) in...

Journal: :Journal of Chemical Education 1991

Akbar Zendehnam Fatemeh Hassanpour Kambiz Hedayati,

In this research zinc sulfide (ZnS) nanoparticles and nanocomposites powders were prepared by chemical precipitation method using zinc acetate and various sulfur sources. The ZnS nanoparticles were characterized by X-ray diffraction, scanning electron microscopy, ultraviolet-visible and fourier transform infra-red. The structure of nanoparticles was studied using X-ray diffraction pattern. The ...

Journal: :مهندسی بیوسیستم ایران 0
سیده هما فصیح‏نیا دانشجوی دکتری گروه علوم و صنایع غذایی، دانشکدۀ کشاورزی، دانشگاه تبریز، تبریز سیدهادی پیغمبردوست دانشیار گروه علوم و صنایع غذایی، دانشکدۀ کشاورزی، دانشگاه تبریز، تبریز سیدجمال الدین پیغمبردوست استادیار علوم و تکنولوژی پلیمر، دانشکدۀ مهندسی شیمی و نفت، دانشگاه تبریز، تبریز

low density polyethylene films incorporating different types of organically modified nanoclays were prepared. physical, surface morphology and mechanical properties of the films were analyzed by x-ray diffraction pattern, scanning electron microscopy and tensile strength (ts) and length increase until fracture point (e) parameters, respectively. colony counting method was used to investigate an...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2002

درودیان, مسعود, طیبی فرد, سید علی , یزدانی راد, رحیم, احمدی, کامران,

X-ray powder diffraction data for Mo2.85Al1.91Si4.81 are presented here. The new Mo2.85Al1.91Si4.81 compound was successfully prepared, using the self-propagating high-temperature synthesis (SHS) technique. The starting atomic mixture of reactant powders was Mo + 2(1 - x)Si + 2xAl with 0.2 ≤ x ≤ 0.5. The final powder compound obtained by the SHS technique was determined to be in x = 0.2; Mo(Si,...

2013
Lynne B. McCusker Christian Baerlocher

Electron microscopy techniques yield information for crystal structure analysis that is remarkably complementary to that obtained from X-ray powder diffraction data. Structures of polycrystalline materials that resist solution by either method alone can sometimes be solved by combining the two. For example, the intensities extracted from an X-ray powder diffraction pattern are kinematical and c...

Journal: :Bulletin of the Chemical Society of Japan 1971

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