نتایج جستجو برای: 60co γ

تعداد نتایج: 75652  

2013
Rejeb Hadiji Ken Shirakawa KEN SHIRAKAWA

In this paper, a class of minimization problems, labeled by an index 0 < h < 1, is considered. Each minimization problem is for a freeenergy, motivated by the magnetics in 3D-ferromagnetic thin film, and in the context, the index h denotes the thickness of the observing film. The Main Theorem consists of two themes, which are concerned with the study of the solvability (existence of minimizers)...

2006
Hamdi Zorgati

The behavior of a thin curved hyperelastic film bonded to a fixed substrate is described by an energy composed of a nonlinearly hyperelastic energy term and a debonding interfacial energy term. We compute the Γ-limit of this energy under a noninterpenetration constraint that prohibits penetration of the film into the substrate without excluding contact between them.

2008
Houari Mechkour

We are interested in the homogenization of elastic-electric coupling equation, with rapidly oscillating coefficients, in periodically perforated piezoelectric body. We justify the two first terms in the usual asymptotic development of the problem solution. For the main convergence results of this paper, we use the notion of two-scale convergence. A two-scale homogenized system is obtained as th...

Journal: :SIAM J. Math. Analysis 2011
Pierluigi Cesana

We compute the large-body and the small-particle Gamma-limit of a family of energies for nematic elastomers. We work under the assumption of small deformations (linearized kinematics) and consider both compressible and incompressible materials. In the large-body asymptotics, even if we describe the local orientation of the liquid crystal molecules according to the model of perfect order (Frank ...

Journal: :Journal of radiation research 1979
M Yamamoto M Matsui S Igarashi M Yoshioka H Hayakawa T Kitagawa

山本政儀,松 井正夫:北 陸大学薬学部放射薬 品学教室 金沢市金川町 ホ3番 地 〒g20-11 五十嵐修一,吉 岡満夫, 早川博信,北 川貞治:福 井県衛生研究所放射能課 福井市原 目町39-4 〒910 Radionuclides/Glycerol/Sediment/Normalization The concentrations of 239Pu and 137Cs due to fall-out, and 60Co originating from the nuclear power reactor in the sediments sampled at Urazoko Bay, Fukui Pref., Japan, were determined and their correlation with the particle size or the amount of g...

The radiation environment in deep space, where astronauts are behind the shelter provided by the Earth’s magnetosphere, is a major health concern. Galactic cosmic rays (GCR) and solar particle events (SPE) are two basic sources of space radiation in the solar system. The health risks of exposure to high levels of space radiation can be observed either as acute and delayed effects. Zhang et al. ...

Journal: :iranian journal of radiation research 0
m. shourian institute of biochemistry and biophysics, university of tehran, p.o. box 13145-1384, tehran, iran h. ghourchian institute of biochemistry and biophysics, university of tehran, p.o. box 13145-1384, tehran, iran

background: hydrogen peroxide (h2o2), produced by gamma ray irradiation to watery solution, was used as an analytical parameter for dosimetry of cobalt-60 (60co) radiation. materials and methods: detection of the produced h2o2 was carried out using two methods: an amperometric biosensor fabricated by immobilization of anthraquinone 2-carboxylic acid modified horseradish peroxidase on glassy car...

H. Ghourchian, M. Shourian,

Background: Hydrogen peroxide (H2O2), produced by gamma ray irradiation to watery solution, was used as an analytical parameter for dosimetry of cobalt-60 (60Co) radiation. Materials and Methods: Detection of the produced H2O2 was carried out using two methods: an amperometric biosensor fabricated by immobilization of anthraquinone 2-carboxylic acid modified horseradish peroxidase on glassy car...

Journal: :cell journal 0

objective: in this study, we investigated the combined effect of 2-methoxyestradiol (2me2) and 60co on the cytogenetic damage of iododeoxyuridine (iudr) in the spheroid model of u87mg glioblastoma cancer cell lines by alkaline comet assay. materials and methods: u87mg cells were cultured as spheroids with diameters of 350 μm. as control, the spheroids of one plate were not treated. other cultur...

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