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1981
Metwalli, S. M., M. R. El-Hebeary, and M. Y. Younan, "Application of Fail Safe Analysis to Boiler Production Problems", 2nd International Conference on Technology for Development (G.O.F.I.), Egypt , 1981.
Safar, Z. S., "Analysis of a Hydrodynamic Thrust Bearing Operated under Unsymmetrical Conditions", Journal of Mechanical Engineering Science, vol. 23, no. 1: SAGE Publications, pp. 31–36, 1981. Abstract
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Afify, E. M., and S. M. Metwalli, "ANALYSIS, DESIGN AND OPTIMIZATION OF A NEW HORIZONTAL ELUTRIATOR PART I: ANALYSIS", Current advances in mechanical design and production: proceedings of the 1st international conference, Cairo University, Egypt, 27-29 December 1979: Pergamon, pp. 33, 1981. Abstract
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Metwalli, S. M., and E. M. Afify, "Analysis, Design and Optimization of a New Horizontal Elutriator-Part II: Design and Optimization", Current advances in mechanical design and production: proceedings of the 1st international conference, Cairo University, Egypt, 27-29 December 1979: Pergamon, pp. 41, 1981. Abstract
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Van Sciver, S. W., S. Breon, E. Canavan, B. Helvensteijn, and A. Khalil, "Applied Superconductivity Center, Madison, Wisconsin", Stability of Superconductors in Helium I and Helium II: Institut international du froid, pp. 75, 1981. Abstract
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El-Sherbini, T. M., "Autoionizing states in neon and neon ions", Atomkernenergie Kerntechnik, vol. 39, issue 1, pp. 53-54, 1981. Abstract
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1980
Khalifa, H., M. M. Khater, and M. A. Zayed, Absorption Spectra of Copper and Palladium Complexes of Arylazo Acetylacetone Egypt. J. Chem. 23(5), , pp. 311-321, 1980.
S.Eid, and M.El-Said, "An Algorithmic Approach to Optimal Circuit Design", Journal of Faculty of Engineering, Cairo University., issue 2, 1980.
, "The antibacterial effect of crude and treated extract of Hibiscus sadhariffa on some microorganisms causing metritis in vitro and in vivo ", Agr. Res. Rev. , vol. 58: . , pp. 233-244, 1980.
Adham, F. K., N. A. ZOHDY, and M. A. YERAMAIN, "Autogeny in Parasarcophaga argyrostoma (Robineau-Desvoid). ", J. Egypt. Soc. Parasitol, vol. 10, pp. 83-87, 1980.
Adham, F. K., M. Z. Nawal Zohdy, and M. Yermian, "Autogeny in Parasarcophaga argyrostoma (Robineau-Desvoidy) (Diptera: Sarcophagidae)", J. Egypt. Soc. Parasit. , vol. 10, issue 1, pp. 83-87., 1980.
.Kamel, M. S., R. Shabana, A. Kandil, and S. El-Mohanes, "Absolute and relative productivity of some introduced sunflower hybrids", Bull.Fac.Agr.Cairo Univ., vol. 31, pp. 81–100, 1980. Abstract
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El-Sherif, M. A., M. H. Belal, and T. Badra, "Activity of polyphenol oxidase in tomato healthy and infected by Rotylenchulus reniformis and Meloidogyne incognita.", Anzeiger fur Schadlingskunde Pflanzenschutz Umweltschutz, vol. 53, issue 1, pp. 10-13, 1980. Abstract
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El Zarka, A. M., M. A. Shaaraway, R. Shabana, and others, "Adaptability and natural variability of some sunflower introductions in Egypt.", Sunflower Newsletter, vol. 4, no. 1, pp. 14–19, 1980. Abstract
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Fouad, H., N Afifi, A. Fatt-Hi, N. El-Sheemy, I. Iskander, and M. N. Abou Saif, "Altered cell mediated immunity in atrophic rhinitis", The Journal of Laryngology & Otology, vol. 94, no. 5: Cambridge University Press, pp. 507–514, 1980. Abstract
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Safar, Z. S., and C. D. Mote Jr, "Analysis of hydrostatic thrust bearings under non-axisymmetric operation", Wear, vol. 61, no. 1: Elsevier, pp. 9–20, 1980. Abstract
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Abdalla, M. M. F., H. A. S. Hussein, A. F. Ibrahim, L. Hindi, and A. N. Sharaan, "Analysis of radiation-induced erectoid barley mutants and associated yield characters", Egyptian journal of genetics and cytology, 1980. Abstract
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, "Analysis of radiation-induced erectoid barley mutants and associated yield characters.", Egypt. J. Genet. Cytol., vol. 9, pp. 167–192, 1980. Abstract
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Khalil, A., H. Khater, and M. Kamel, "Analysis of the Role of Thermal Radiation from Liquefied Petroleum Gas Pool Fires", Seventh International Conference for Mechanical Power Eng.(ICMPE7), Vol.II I9-1 to 12, Cairo, Dec.1990, vol. 2, no. 19, pp. 1–12, 1980. Abstract
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Khalil, A., H. Khater, and M. Kamel, "Analysis of the Role of Thermal Radiation from Liquefied Petroleum Gas Pool Fires", Seventh International Conference for Mechanical Power Eng.(ICMPE7), Vol.II I9-1 to 12, Cairo, Dec.1990, vol. 2, issue 19, pp. 1-12, 1980. Abstract
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Habib, S. E. D., and J. G. Simmons, "Analytical expressions for tunnel currents in metal-insulator-metal (MIM) and metal-insulator-semiconductor (MIS) structures in a two-band model", Solid-State Electronics, vol. 23, no. 1: Elsevier, pp. 87–92, 1980. Abstract

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Hassan, A. A., M. K. Nakhla, H. M. Mazyed, and S. E. Moustafa, "Assessment of tobacco mosaic virus resistance in thirty-seven tomato (Lycopersicon esculentum Mill.) cultivars and breeding lines [Egypt]", Research Bulletin, Faculty of Agriculture, Ain-Shams Univ., Cairo (Egypt), 1980. Abstract
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Grace, S. R., and B. S. Lalli, "Asymptotic behaviour of certain second order integro-differential equations", Journal of Mathematical Analysis and Applications, vol. 76, issue 1: Elsevier, pp. 84-90, 1980. Abstract
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Belal, M. H., A. Abdel Samad, H. M. Salem, and A. Sakker, "Attractive effect of some acetyl derivatives on cotton leafworm imagines (Spodoptera littoralis [Boisd.]).", Beitrage zur tropischen Landwirtschaft und Veterinarmedizin, vol. 18, issue 3, pp. 299-303, 1980. Abstract
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1979
Monib, M., Y. Abd-el-Malek, I. Hosny, and M. Fayez, "Associative symbiosis of Azotobacter chroococcum and higher plants.", Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abteilung: Mikrobiologie der Landwirtschaft der Technologie und des Umweltschutzes, vol. 134, issue 2, pp. 133 - 139, 1979. AbstractWebsite

The association between a selected strain of Azotobacter chroococcum and seven plants was investigated in water cultures under sterile conditions. Azotobacter population progressively increased in the nutrient solution and on the rhizoplane. Microbial propagation depends on the type of plant, being much higher in presence of wheat, followed by barley, maize, broad bean, and cotton, while in presence of fenugreek and lentil lower rates of multiplication were recorded. Inoculation increased the dry weight of plants by 5--12% and in length by 3--18% in addition to increased nitrogen content of plants and nutrient solution. Nitrogen balance showed no significant change in systems devoid of Azotobacter, but association between plants and the microorganism invariably showed positive results. The extent of N2-fixation depends on the type of plants; higher gains were recorded in presence of non-leguminous plants.

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