نتایج جستجو برای: scanning electron micrograph sem

تعداد نتایج: 455920  

Journal: :international journal of nano dimension 0
z. shokri aghbolagh department of chemistry, payame noor university, abhar, zanjan, iran. a.r. mahjoub department of chemistry, faculty of science, tarbiat modares university, tehran, iran. sh. ghammamy department of chemistry, faculty of science, imam khomeini international university, qazvin, iran.

in this work, sol-gel processing was used to synthesize the fluorohydroxyapatite (nano-fha, ca10(po4)6(oh)2−xfx) nanopowders. the advantages of the sol-gel method over other methods are precise control of composition, low processing temperature, and better homogeneity. calcium nitrate tetrahydrate, phosphorous pentoxide and tetrabuthylammonium fluoride were used, respectively, as p, ca, and f p...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
pages 11-17 e. ghasemi m.t hamed mosavian m.h haddad khodaparast

in this work, the effects of acetic and lactic acids addition to rice during cooking, on the texture and morphological properties, and too, the gelatinization temperature (gt) of the cooked domsiyah rice was investigated. all experiments were carried out in triplicate and data analyzed in randomized completely by spss15 software. the results showed that acid addition to rice during cooking caus...

Journal: :international journal of nano dimension 0
d. durgavijaykarthik pg and research centre of physics, vhnsn college, virudhunagar – 626001, tamilnadu, india. m. kirithika department of microbiology, vhnsn college, virudhunagar – 626001, tamilnadu, india. n. prithivikumaran pg and research centre of physics, vhnsn college, virudhunagar – 626001, tamilnadu, india. n. jeyakumaran pg and research centre of physics, vhnsn college, virudhunagar – 626001, tamilnadu, india.

cadmium oxide (cdo) nanoparticles were prepared by precipitation method using cadmium acetate and ammonia solution. presence of chemical species, were verified by fourier transform infra red (ftir) spectrum. from x-ray diffraction (xrd) spectrum the particle size, d-spacing value and structure of the nanoparticle were analysed. size of the nanoparticles and the elemental composition were detect...

2015
Asha Sneh Lata Goyal Nawal Kishore

The paper describes the synthesis and characterization of polyaniline (PANI)/CrO3 composites. Samples of PANI/CrO3 composites were synthesized by chemical oxidative polymerization of aniline added with various weight % of CrO3 in the presence of ammonium persulphate as an oxidant. The samples were characterized by Fourier Transform Infrared (FTIR) Spectroscopy, Scanning Electron Microscopy (SEM...

Journal: :Brazilian dental journal 2009
Murilo Baena Lopes Mário A C Sinhoreti Alcides Gonini Júnior Simonides Consani John F McCabe

This study compared the tubular dimensions and distribution of human and bovine dentin. Ten human molars and 10 bovine incisors were ground with a high-speed handpiece to obtain 3 sections at different dentin depths (superficial, middle and deep). The specimens were sputter-coated with gold to be examined under scanning electron microscopy (SEM). Three SEM micrographs were recorded randomly for...

Journal: :International Journal of Heat and Technology 2021

Cryogenic treatment is a sustainable manufacturing process preferred to improve the properties of material. In present study, effect cryo treated tungsten carbide cobalt bonded insert (WC-Co) measured in terms tool life and surface finish on dry turning high strength AISI4340 steel at different machine parametric conditions. The observations Untreated (UT) Deep Cryo Treated (DCT) inserts were c...

Journal: : 2021

Removal of the highest amount albumin and IgG in blood plasma for determination disease-specific proteins is great importance field diagnosis treatment. In this study it aimed to prepare biosorbent be used as a support material affinity chromatography. Gelatin biosorbents were prepared by water oil emulsion method stabilized with glutaraldehyde biofunctional crosslinker obtain spherical biosorb...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1390

abstract in this study, we synthesized a novel template polymer by using methacrylic acid (mma) as functional monomer, ethylene glycol dimethacrylate(egdma) as cross linker, 2,2-azobisisobutyronitrile (aibn) as initiator and olanzapine as targeted molecule in the presence of chloroform and acetonitrile as solvent. the products have been characterized and confirmed by (chn)elemental analysis,...

Journal: :Indian journal of experimental biology 2015
Leya Thomas Raveendran Sindhu Parameswaran Binod Ashok Pandey

Here, we described the production of a cellulase-free alkaline xylanase from Bacillus pumilus MTCC 5015 by submerged fermentation and its application in biobleaching. Various process parameters affecting xylanase production by B. pumilus were optimized by adopting a Plackett-Burman design (PBD) as well as Response surface methodology (RSM). These statistical methods aid in improving the enzyme ...

Journal: Mycologia Iranica 2016

In the present study, pathogenicity of four native strains of Entomopathogenic fungus; Metarhizium anisopliae, was studied against adult stage of Ixodes ricinus. For this purpose a total number of 180 adult ticks were examined in triplicate. Thirty ticks for each strain and negative and positive controls were immersed in 2.4×107 fungal conidia/ml in vitro. Samples were incubated in separate Pet...

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