نتایج جستجو برای: chemical analysis methods

تعداد نتایج: 4382170  

Journal: :journal of physical and theoretical chemistry 0
masoome sheikhi iran, islamic azad university siyamak shahab institute of physical organic chemistry, national academy of sciences of belarus,13 surganov str, minsk 220072, belarus

in the present work, the quantum theoretical calculations of the molecular structure of the 1-(1, 3-benzothiazol-2-yl)-3-(thiophene-5-carbonyl) thiourea has been predicted and are evaluated using density functional theory (dft) in gas phase. the geometry of the title compound was optimized by b3lyp/6-311+g and b3lyp/6-311+g* methods and the experimental geometrical parameters of the title compo...

Journal: :iranian red crescent medical journal 0
roghayeh chenary department of health, ilam university of medical sciences, ilam, ir iran azita noroozi department of health education and promotion, bushehr university of medical sciences, bushehr, ir iran; the persian gulf marine biotechnology research center, bushehr university of medical sciences, bushehr, ir iran; department of health education and promotion, school of health, bushehr university of medical sciences, bushehr, ir iran sedighe sadat tavafian department of health education, tarbiat modares university, tehran, ir iran maliheh saeed firoozabadi the persian gulf marine biotechnology research center, bushehr university of medical sciences, bushehr, ir iran

conclusions perceived social support is the most important factor that influences health-promoting behaviors. increasing social support by enhancing self-efficacy and decreasing perceived barriers can improve health-promoting behaviors among veterans. background health-promoting behaviors can enhance physical and mental health among individuals with disability, particularly veterans. objectives...

Journal: :Journal of Physics: Conference Series 2005

Journal: :Turkish Bulletin of Hygiene and Experimental Biology 2017

Journal: :Canadian Journal of Chemical Engineering 2021

Abstract When a free nucleus absorbs or emits gamma ray, it recoils to conserve energy, just like gun after shooting bullet. Nuclei bound crystal lattice energy when they absorb emit rays from nuclear transition as are fixed so their movement is restricted. This restriction recoilless resonance fluorescence—the Mössbauer effect. The transmitted through sample reveals its electronic and molecula...

Journal: :international journal of nano dimension 0
b. sathyaseelan department of physics, university college of engineering arni (a constituent college of anna university chennai) arni 632 317, tamilnadu, india. s. sambasivam department of physics, pukyong national university, busan-608 737, south korea. t. alagesan department of physics, presidency college, chennai 600 005, tamil nadu, india. k. sivakumar department of physics, anna university, chennai-600025, tamilnadu, india.

nanocrystalline particles of cerium oxide (ceo2) have been prepared by the chemical precipitation method using cerium nitrate and urea with a molar ratio of 1:2. the results revealed that the formation of ceo2 fine particles is influenced by molar ratio of metal nitrates to fuel. well faceted ceo2 nanoparticles, were synthesized by thermal-assisted dissociation method at reflux temperature in a...

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