Combined effect of γ-irradiation and organic solvents on some structural properties of cotton fibers

1993 ◽  
Vol 39 (1) ◽  
pp. 1-5 ◽  
Author(s):  
M.A. Moharram ◽  
N. Abdel-Hakeem ◽  
S.M. Hammad ◽  
O.M. Mahmoud
Keyword(s):  
Structural Properties ◽  
Organic Solvents ◽  
Combined Effect ◽  
Cotton Fibers ◽  
Γ Irradiation

scholarly journals Influence of γ-Irradiation on the Structural Properties of Indium Monoselenide Crystals

2016 ◽  
Vol 6 (6) ◽  
pp. 1264-1268
Author(s):  
F. A. Al-Mufadi ◽  
A. El-Taher ◽  
G. A. Gamal
Keyword(s):  
Structural Properties ◽  
Energy Gap ◽  
Γ Irradiation ◽  
Layered Semiconductor ◽  
X Ray ◽  
Detailed Structural Analysis ◽  
Peak Broadening ◽  
Potential Applications ◽  
Vertical Bridgman ◽  
Special Modification

Indium monoselenide (InSe) which is a layered semiconductor whose energy gap is 1.24 eV has received attention because of its potential applications in optoelectronic devices. In the present work n-type InSe crystals were grown by a special modification of the vertical Bridgman technique. X-ray Diffraction (XRD) patterns showed that all samples were single phased InSe. The crystals were irradiated with 100 - 500 KGy to reveal the influence of irradiation on the structural properties of the samples. Detailed structural analysis was done by Scherrerr’s procedures, x-ray peak broadening and Williamson–Hall plot methods to evaluate the crystalline sizes and lattice strain. Also from the relations between the irradiation dose and the deformation of the lattice parameters we could investigate and discuss the mutation of the dislocation density, grain size, microstrain and crystallinity of the grown crystals. Striking results are found due to irradiation in the present study for the first time.

Optical and structural properties of Li2O–Al2O3–B2O3 glasses before and after γ-irradiation effects

2008 ◽  
Vol 104 (10) ◽  
pp. 103515 ◽  
Author(s):  
D. Singh ◽  
K. Singh ◽  
B. S. Bajwa ◽  
G. S. Mudahar ◽  
D. P. Singh ◽  
...  
Keyword(s):  
Structural Properties ◽  
Irradiation Effects ◽  
Γ Irradiation ◽  
Before And After

Combined effect of γ-irradiation and osmotic pretreatment on mass transfer during dehydration

2006 ◽  
Vol 77 (4) ◽  
pp. 1059-1063 ◽  
Author(s):  
N.K. Rastogi ◽  
K. Suguna ◽  
C.A. Nayak ◽  
K.S.M.S. Raghavarao
Keyword(s):  
Mass Transfer ◽  
Combined Effect ◽  
Γ Irradiation

Coefficients B de viscosité dans les systèmes ternaires aqueux. III. Halogénures alcalins–alcool tert-butylique–eau à 25 °C

1979 ◽  
Vol 57 (24) ◽  
pp. 3247-3252 ◽  
Author(s):  
Marc Palma ◽  
Jean-Pierre Morel
Keyword(s):  
Linear Relationship ◽  
Structural Properties ◽  
Organic Solvents ◽  
Linear Correlation ◽  
Butyl Alcohol ◽  
Tert Butyl ◽  
Tert Butyl Alcohol ◽  
Alcohol Water ◽  
Coefficient Of Viscosity

We have measured the coefficient of viscosity B at 25 °C of HCl, LiCl, NaCl, KCl, RbCl, KI, and KBr in the mixtures of aqueous organic solvents containing from 10 to 40% tert-butyl alcohol by weight (X), the concentration of electrolyte varying from 0.1 to 0.3 M.Plots of B = f (x) show points of inflexion and minima whose positions can be explained by the structural properties of the mixed solvent.In water, a linear relationship between the entropy of hydration and coefficient B of the ions is observed. In the same way, it can be shown that a linear correlation exists between the entropy of solvation and coefficient B of the electrolytes for all the mixtures studied.These correlations lead to the characterization of two distinct zones (X < 20% and X > 20%) for the range of tert-butyl alcohol–water mixtures. [Journal translation]

Mechanical and Structural Properties of Milk Protein Edible Films Cross-Linked by Heating and γ-Irradiation

2000 ◽  
Vol 48 (8) ◽  
pp. 3202-3209 ◽  
Author(s):  
C. Vachon ◽  
H.-L. Yu ◽  
R. Yefsah ◽  
R. Alain ◽  
D. St-Gelais ◽  
...  
Keyword(s):  
Structural Properties ◽  
Milk Protein ◽  
Edible Films ◽  
Γ Irradiation ◽  
Mechanical And Structural Properties

Structural Properties of Cotton Fibers

1964 ◽  
Vol 34 (1) ◽  
pp. 46-52 ◽  
Author(s):  
S.M. Betrabet ◽  
R.L.N. Iyengar
Keyword(s):  
Structural Properties ◽  
Cotton Fibers

scholarly journals Combined effect of multiple exposure to low-level organic solvents on hepatotoxicity

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
S. Ye ◽  
J. Sung ◽  
M. Shin ◽  
S. Lee ◽  
J. Lee
Keyword(s):  
Organic Solvents ◽  
Combined Effect ◽  
Multiple Exposure ◽  
Low Level

Changes in structural and optical properties due to γ-irradiation of MgO nanoparticles

2020 ◽  
Vol 108 (4) ◽  
pp. 315-320
Author(s):  
Maryam Amini ◽  
Mohammad Hossein Majles Ara
Keyword(s):  
Optical Properties ◽  
Dose Rate ◽  
Structural Properties ◽  
Gamma Spectroscopy ◽  
Hexagonal Lattice ◽  
Crystal Defects ◽  
Γ Irradiation ◽  
Mgo Nanoparticles ◽  
Before And After ◽  
Γ Ray

AbstractIn this research, the influence of γ-irradiation on the optical and structural properties of magnesium oxide (MgO) nanoparticles was studied. The MgO nanoparticles were irradiated with doses 100 Gy, 1 kGy, 10 kGy and 20 kGy from 60Co source. The as-synthesized samples of MgO nanoparticles prepared by the sol-gel technique were analyzed by XRD which suggested the double phase; cubic and hexagonal structures of the material. The crystal defects that produced in the cubic and hexagonal lattice were studied before and after 60Co γ-irradiation in a gamma cell by different dose rates in order to report the changes in structural properties of the MgO nanoparticles. The irradiated and un-irradiated samples were characterized by XRD and UV–Vis. The XRD pattern of MgO nanoparticles is showed that the crystal size of MgO nanoparticles being increased with increasing the γ-ray dose rate. For optical absorption, the UV–Visible absorption spectra of MgO nanoparticles are showed that when the dose rate is increased, the value of band gap is decreased. Also, the experimental values of the mass attenuation coefficient of MgO nanoparticles have been calculated before and after γ-irradiation by using the gamma spectroscopy method. Therefore, the results are showed that γ-ray irradiation has various effects on structural, morphological and optical properties.

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