Salem, O. A. I., T. T. El-Gallad, S. M. Allam, M. M. E. Hassouna, and M. S. Farghly,
"Effects of periodic feed restriction with subsequent re-alimentation on performance of Baladi goats",
Small Ruminant Research, vol. 2, issue 2: Elsevier, pp. 133-141, 1989.
Abstractn/a
El Shabshiry, M., A. Faessler, and M. Ismail,
"Effects of the Pauli blocking and surface contribution to the optical potential on the ion-ion reaction cross section",
Journal of Physics G: Nuclear and Particle Physics, vol. 15, no. 4, pp. L59-L62, 1989.
AbstractThe energy dependence of the ion-ion reaction cross section has been investigated using the eikonal approximation to study the effects of the Pauli blocking and surface contribution to the optical potential. This leads to theoretical cross sections lower than the data. If the collective surface contribution is added to the volume part, one obtains reasonable agreement with experiment at higher energies.
,
"Electrical conduction in γ irradiated and unirradiated Fe3O4, CdFe2O4 and CoxZn1-xFe2O4 (0 ≤ x ≤ 1)",
Thermochimica Acta, vol. 144, no. 1, pp. 45-52, 1989.
AbstractThe electrical conductivity of γ irradiated and unirradiated finely divided ferrites of composition Fe3O4, CdFe2O4 and CoxZn1-xFe2O4 (0 ≤ x ≤ 1) was studied in a nitrogen atmosphere as a function of temperature. Fe3O4, ZnFe2O4 and CdFe2O4 showed n-type conduction, whereas CoFe2O4 showed p-type conduction. For CoVxZn1-xFe2O4 it was found that the type of conduction varies with the composition of ferrites. The electrical conduction in Fe3O4 and CoxZn1-xFe2O4 (0 ≤ x ≤1) was explained by a hopping mechanism, whereas the conduction in ZnFe2O4 and in CdFe2O4 is interpreted on the basis of the transfer of charge carriers through cation vacancies present on octahedral sites. The effect of γ irradiation on the conductivity, activation energy, charge carriers and the conduction mechanism was discussed. © 1989.
,
"Electrical conduction in γ irradiated and unirradiated Fe3O4, CdFe2O4 and CoxZn1-xFe2O4 (0 ≤ x ≤ 1)",
Thermochimica Acta, vol. 144, no. 1, pp. 45-52, 1989.
AbstractThe electrical conductivity of γ irradiated and unirradiated finely divided ferrites of composition Fe3O4, CdFe2O4 and CoxZn1-xFe2O4 (0 ≤ x ≤ 1) was studied in a nitrogen atmosphere as a function of temperature. Fe3O4, ZnFe2O4 and CdFe2O4 showed n-type conduction, whereas CoFe2O4 showed p-type conduction. For CoVxZn1-xFe2O4 it was found that the type of conduction varies with the composition of ferrites. The electrical conduction in Fe3O4 and CoxZn1-xFe2O4 (0 ≤ x ≤1) was explained by a hopping mechanism, whereas the conduction in ZnFe2O4 and in CdFe2O4 is interpreted on the basis of the transfer of charge carriers through cation vacancies present on octahedral sites. The effect of γ irradiation on the conductivity, activation energy, charge carriers and the conduction mechanism was discussed. © 1989.
,
"Electrical conduction in γ irradiated and unirradiated Fe3O4, CdFe2O4 and CoxZn1-xFe2O4 (0 ≤ x ≤ 1)",
Thermochimica Acta, vol. 144, no. 1, pp. 45-52, 1989.
AbstractThe electrical conductivity of γ irradiated and unirradiated finely divided ferrites of composition Fe3O4, CdFe2O4 and CoxZn1-xFe2O4 (0 ≤ x ≤ 1) was studied in a nitrogen atmosphere as a function of temperature. Fe3O4, ZnFe2O4 and CdFe2O4 showed n-type conduction, whereas CoFe2O4 showed p-type conduction. For CoVxZn1-xFe2O4 it was found that the type of conduction varies with the composition of ferrites. The electrical conduction in Fe3O4 and CoxZn1-xFe2O4 (0 ≤ x ≤1) was explained by a hopping mechanism, whereas the conduction in ZnFe2O4 and in CdFe2O4 is interpreted on the basis of the transfer of charge carriers through cation vacancies present on octahedral sites. The effect of γ irradiation on the conductivity, activation energy, charge carriers and the conduction mechanism was discussed. © 1989.
,
"Electrical conduction in γ-irradiated and unirradiated Fe3O4, CdFe2O4 and CoxZN1-xFe2O4 (0 ≤x ≤ 1) ferrites",
Journal of Materials Science, vol. 24, no. 7: Kluwer Academic Publishers, pp. 2478-2482, 1989.
AbstractThe electrical conductivity of γ-irradiated and unirradiated finely divided ferrites of composition Fe3O4, CdFe2O4 and Cox Fn1-xFe2O4(0 ≤x ≤ 1) was studied in a nitrogen atmosphere as a function of temperature. Fe3O4, ZnFe2O4 and CdFe2O4 showed n-type conduction, whereas CoFe2O4 showed p-type conduction. For CoxZn1-xFe2O4 it was found that the type of conduction varies with the composition of ferrites. The electrical conduction in Fe3O4, and CoxZn1-xFe2O4(0 ≤x ≤ 1) was explained by a hopping mechanism, whereas the conduction in ZnFe2O4 and in CdFe2O4 is interpreted on the basis of the transfer of charge carriers through cation vacancies present on octahedral sites. The effect of γ-irradiation on the conductivity, activation energy, charge carriers and the conduction mechanism is discussed. © 1989 Chapman and Hall Ltd.
,
"Electrical conduction in γ-irradiated and unirradiated Fe3O4, CdFe2O4 and CoxZN1-xFe2O4 (0 ≤x ≤ 1) ferrites",
Journal of Materials Science, vol. 24, no. 7: Kluwer Academic Publishers, pp. 2478-2482, 1989.
AbstractThe electrical conductivity of γ-irradiated and unirradiated finely divided ferrites of composition Fe3O4, CdFe2O4 and Cox Fn1-xFe2O4(0 ≤x ≤ 1) was studied in a nitrogen atmosphere as a function of temperature. Fe3O4, ZnFe2O4 and CdFe2O4 showed n-type conduction, whereas CoFe2O4 showed p-type conduction. For CoxZn1-xFe2O4 it was found that the type of conduction varies with the composition of ferrites. The electrical conduction in Fe3O4, and CoxZn1-xFe2O4(0 ≤x ≤ 1) was explained by a hopping mechanism, whereas the conduction in ZnFe2O4 and in CdFe2O4 is interpreted on the basis of the transfer of charge carriers through cation vacancies present on octahedral sites. The effect of γ-irradiation on the conductivity, activation energy, charge carriers and the conduction mechanism is discussed. © 1989 Chapman and Hall Ltd.
,
"Electrical conduction in γ-irradiated and unirradiated Fe3O4, CdFe2O4 and CoxZN1-xFe2O4 (0 ≤x ≤ 1) ferrites",
Journal of Materials Science, vol. 24, no. 7: Kluwer Academic Publishers, pp. 2478-2482, 1989.
AbstractThe electrical conductivity of γ-irradiated and unirradiated finely divided ferrites of composition Fe3O4, CdFe2O4 and Cox Fn1-xFe2O4(0 ≤x ≤ 1) was studied in a nitrogen atmosphere as a function of temperature. Fe3O4, ZnFe2O4 and CdFe2O4 showed n-type conduction, whereas CoFe2O4 showed p-type conduction. For CoxZn1-xFe2O4 it was found that the type of conduction varies with the composition of ferrites. The electrical conduction in Fe3O4, and CoxZn1-xFe2O4(0 ≤x ≤ 1) was explained by a hopping mechanism, whereas the conduction in ZnFe2O4 and in CdFe2O4 is interpreted on the basis of the transfer of charge carriers through cation vacancies present on octahedral sites. The effect of γ-irradiation on the conductivity, activation energy, charge carriers and the conduction mechanism is discussed. © 1989 Chapman and Hall Ltd.
Ahmed, M.A., M. R. M. A. F. A.,
"Electrical conductivity behaviour in (CnH2n)(NH3)2FeCl4 complexes (n = 2, 3, 7 AND 10)",
Thermochimica Acta, vol. 137, no. 2, pp. 255-261, 1989.
AbstractThe d.c. and a.c. conductivity and the thermoelectric power of the compounds H3N+(CH2)nN+H 3FeCl4, where n = 2, 3, 7 or 10, have been studied over a temperature range of 150-500 K. The conductivity results confirm the presence of more than one structural phase transition for each compound investigated. The thermoelectric power measurements show that electrons are the main charge carriers in all crystal phases. The conductivity results are explained on the basis of an electron-hopping mechanism over the whole temperature range. © 1989.
El‐Sherbini, T. M., H. M. M. Mansour, A. A. Farrag, and A. A. Rahman,
"Energy levels of the single excited states in the boron isoelectronic sequences",
Annalen der Physik, vol. 501, issue 2: Wiley Online Library, pp. 105-112, 1989.
Abstractn/a
El‐Sherbini, T. M., H. M. M. Mansour, A. A. Farag, and A. A. Rahman,
"Energy levels of the single excited states in the magnesium isoelectronic sequence",
Annalen der Physik, vol. 501, issue 2: Wiley Online Library, pp. 144-148, 1989.
Abstractn/a
Harith, M. A., V. Palleschi, A. Salvetti, D. P. Singh, G. Tropiano, and M. Vaselli,
"Experimental studies on shock wave propagation in laser produced plasmas using double wavelength holography",
Optics Communications, vol. 71, no. 1: Elsevier, pp. 76–80, 1989.
Abstractn/a
M, E. A. M., M. Abdel Wahed, and M. Kabesh,
"Fabric Evolution and Geochemical Characters of the Migmatites and Associated Gneisses of Wadi Baba and Wadi Dafari, West Central Sinai, Egypt. Egypt. ",
Egypt. Mineralogist, vol. 1, pp. 27-53, 1989.
]