Zobrazeno 1 - 10
of 30
pro vyhledávání: '"M A, Moteleb"'
Publikováno v:
The Egyptian Heart Journal, Vol 65, Iss 4, Pp 265-270 (2013)
Introduction: Radio frequency ablation of the slow pathway has become first-line therapy for the elimination of AV nodal reentrant tachycardia (AVNRT). Slow pathway ablation is guided by a combination of fluoroscopic landmarks, electrogram morphology
Externí odkaz:
https://doaj.org/article/0aea78ae5c5f46ce88e355f1ef48e2bf
Publikováno v:
Journal of Environmental Science. 45:207-232
Autor:
Hakim G. Shinouda, M. M. Abdel Moteleb
Publikováno v:
Journal of Applied Polymer Science. 98:571-582
The effect of hydration on the dielectric constant and loss factor tan δ of viscose hydrocellulose, hydroxypropyl cellulose, and dextran was studied in a wide range of temperatures and frequencies. The results obtained reveal that (1) whereas hydrat
Autor:
Mohamed M. Abdel Moteleb
Publikováno v:
European Polymer Journal. 35:1755-1760
The effect of potassium dichromate as an oxidizing agent in the presence of sulphuric or oxalic acid on the dielectric properties of viscose fibres was investigated. The results obtained were interpreted in view of the chemical and physical modificat
Autor:
Y.K. El Akabawy, M. M. Abdel Moteleb
Publikováno v:
Polymer Degradation and Stability. 64:27-32
Hydroviscose was found to resist oxidation with either hydrogen peroxide or potassium dichromate in oxalic acid, but changes in its fine structure took place, whereas nitric acid or periodate were found to cause oxidation and produced oxyhydroviscose
Publikováno v:
Polymer. 40:895-903
The dielectric properties of oxyviscose samples prepared with different oxidizing agents were investigated. The results obtained are interpreted and compared from the viewpoint of the modifications that occur in the structure of the fibres during the
Autor:
M. M. Abdel Moteleb, Gamal R. Saad
Publikováno v:
Polymer International. 37:261-265
Commercial and purified viscose fibres exhibit dielectric dispersion and a loss peak within the frequency range 0.05–1 k c/s and at temperatures of 80–140°C. Such high temperature relaxation is local in nature and is attributed to side group mot
Publikováno v:
Polymer International. 37:27-32
The dielectric and optical characteristics of a sample of cellulose acetate (DS=2-45) in dioxane solutions were studied at 10-50 o C over the range of concentration 10-50wt% to include both isotropic and anisotropic phases. The study showed that the
Autor:
M. M. Abdel Moteleb
Publikováno v:
Polymer International. 35:243-247
The dielectric constant and dielectric loss were determined for solid starch free of and contaminated with sodium chloride over a frequency range of 0.1–10 000 kc/s at temeperatures from 10 to 60°C. The results are compared with those of cellulosi
Autor:
M. M. Abdel Moteleb, E. El Shafee
Publikováno v:
Cellulose. 1:197-203
Measurements of the dielectric constant and the dielectric loss, at frequencies of 0.05-10 kHz over a temperature range of 10–60 °C, were carried out on viscose fibres, viscose with iron adsorbed and with iron removed. The results obtained show th