نتایج جستجو برای: nuclear level density

تعداد نتایج: 1657460  

Journal: :Nuclear Physics 2023

We investigate the nature and impact of shell effects on nuclear level density (NLD) particle emission probability as a function temperature in microscopic theoretical framework Statistical Model for nuclei ranging from neutron deficient to rich isotopes Z$=$ 27$-$35. Critical temperatures are traced neighbouring even, odd, closed mid$-$shell which respond excitations differently due their vary...

Journal: :journal of biomedical physics and engineering 0
l khojastepour professor of oral and maxillofacial radiology, department of radiology, school of dentistry, university of medical sciences, shiraz, iran s mohammadzadeh specialist in periodontology, department of periodontology, school of dentistry, university of medical sciences, shiraz, iran m jazayeri specialist in oral and maxillofacial radiology, private clinic of oral and maxillofacial radiology, khoramabad, iran m omidi specialist in periodontology (m.sc), department of periodontics, school of dentistry, bushehr university of medical sciences, bushehr, iran

background: jaw bone quality plays an essential role in treatment planning and prognosis of dental implants. regarding several available methods for bone density measurements, they are not routinely used before implant surgery due to hard accessibility. objective: an in vitro investigation of correlation between average gray scale in direct digital radiographs and hounsfield units in ct-scan pr...

Journal: :international journal of nano dimension 0
ashraf sadat ghasemi department of chemistry, payame noor university (pnu), p.o. box,19395-4697, tehran, islamic republic of iranسازمان اصلی تایید شده: دانشگاه پیام نور تهران (payame noor university) ehsan binaeian chemical engineering department, qaemshahr branch, islamic azad university, qaemshahr, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) habibollah tayebi textile engineering department, qaemshahr branch, islamic azad university, qaemshahr, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) yasna modanlou jouybari department of chemical engineering, qaemshahr branch, islamic azad university, qaemshahr, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

adsorption of co2 on the surface of single-wall zigzag (5,0) and armchair (4,4) carbon nanotubes (swcnts) were studied through using density functional theory (dft) calculations. optimizations of geometric were performed at the b3pw91 level of 6-311++g** method standard basis set using gaussian 03 package of program [1]. structural models were optimized and adsorption energies, band gap, charge...

Journal: :Journal of cataract and refractive surgery 2016
Fernando Faria-Correia Bernardo Lopes Tiago Monteiro Nuno Franqueira Renato Ambrósio

PURPOSE To test correlations between Scheimpflug optical densitometry and ocular higher-order aberrations (HOAs) in patients with mild nuclear cataract. SETTING Cornea and Refractive Surgery Department, Hospital de Braga, Braga, Portugal. DESIGN Retrospective single-center study. METHODS In eyes with mild nuclear cataract, lens densitometry was evaluated by Scheimpflug imaging (Pentacam H...

Journal: :international journal of bio-inorganic hybrid nanomaterials 2015
m. khaleghian f. azarakhshi g.r. ghshami

to calculation non-bonded interaction of the [cocl6]3- complex embedded in nano ring, we focus on the single wall boron-nitride b18n18 nano ring. thus, the geometry of b18n18 nano ring has been optimized by b3lyp method with epr-ii (electron paramagnetic resonance) basis set and geometry of the [cocl6]3- complex has been optimized at b3lyp method with aldrich’s vtz basis set and stuttgart rsc 1...

2008
A. V. Voinov S. M. Grimes A. C. Larsen C. R. Brune M. Guttormsen T. Massey A. Schiller N. U. H. Syed

The level densities of 44Sc and 47Ti have been determined from measurements of particle evaporation spectra from the compound nuclear reaction 3He + 45Sc with an 11 MeV 3He beam. The level density of 44Sc has been compared to the level density obtained from an independent experimental method based on an analysis of α-γ coincidences from the transfer reaction 45Sc(3He,αγ )44Sc. The good agreemen...

غلام حسین بردبار, ,

  One of the most interesting application of the many-body methods to the nuclear physics is the calculation of the properties of the nuclear matter, especially its binding energy. In this paper, we have studied the influence of Δ -isobar on the properties of the symmetrical nuclear matter using the lowest order constrained variational (LOCV) method with the V28 potential. It is shown that the ...

Journal: :Advances in Physics: X 2020

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