Search Results - "Umar, S.A."

FACTORS INFLUENCING EXPORT PERFORMANCE OF GINGER (ZINBIGER OFFICINALE) IN NIGERIA by Alabi, O.O., Madaki, M.J., Sanusi, S.O., Umar, S.A., Omole, E.B., Olumuyiwa, S.A., David, H.S., Emeghara, U.U., Waziri-Ugwu, P.R., Shaba, M.G.

“…This study evaluated factors influencing export performance of ginger (Zinbiger officinale) in Nigeria. Specifically, the research study was designed to…”
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Polarizability, optical basicity and electric susceptibility of Er3+ doped silicate borotellurite glasses by Umar, S.A., Halimah, M.K., Chan, K.T., Latif, A.A.

“…Glasses system was fabricated using the chemical composition {[(TeO2)0.7 (B2O3)0.3]0.8 (SiO2)0.2}1−x (Er2O3)x with x=0.01, 0.02, 0.03, 0.04 and 0.05 by…”
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Utilizing Rice Husk Ash as Supplement to Cementitious Materials on Performance of Ultra High Performance Concrete: – A review by Mosaberpanah, M.A., Umar, S.A.

“…Yearly, approximately 750 million tons of rice husks is cultivated which generates about 160 million tons of rice husk that are eventually dumped on the…”
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Physical, structural and optical properties of erbium doped rice husk silicate borotellurite (Er-doped RHSBT) glasses by Umar, S.A., Halimah, M.K., Chan, K.T., Latif, A.A.

“…A series of erbium doped rice husk silicate borotellurite glasses with chemical composition {[(TeO2)0.7 (B2O3)0.3]0.8 (SiO2)0.2}1−x (Er2O3)x with x=0.01, 0.02,…”
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Upconversion properties of erbium nanoparticles doped tellurite glasses for high efficient laser glass by Azlan, M.N., Halimah, M.K., Suriani, A.B., Azlina, Y., Umar, S.A., El-Mallawany, R.

“…Erbium nano particles (NPs) doped tellurite glasses were prepared via melt-quenched technique and their chemical composition are as follows; {[(TeO2)0.70…”
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Optical characterization and polaron radius of Bi2O3 doped silica borotellurite glasses by Geidam, I.G., Matori, K.A., Halimah, M.K., Chan, K.T., Muhammad, F.D., Ishak, M., Umar, S.A., Hamza, A.M.

“…A system of silica borotellurite glasses containing bismuth oxide (Bi2O3) with empirical chemical relation [{(TeO2)0.7(B2O3)0.3}0.8(SiO2)0.2]1−x(Bi2O3)x (where…”
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Oxide ion polarizabilities and gamma radiation shielding features of TeO2–B2O3–SiO2 glasses containing Bi2O3 using Phy-X/PSD software by Geidam, I.G., Matori, K.A., Halimah, M.K., Chan, K.T., Muhammad, F.D., Ishak, M., Umar, S.A.

“…A system of lead-free silica borotellurite glasses containing bismuth oxide was fabricated in accordance with conventional melt-quenching procedure. XRD…”
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Optical basicity, polarizability and spectroscopic investigations of CuO doped TeO2–B2O3 glass system by Umar, S.A., S.N, Nazrin, Geidam, I.G., El-Mallawany, R., M. Abd-Elnaiem, Alaa, Hakamy, Ahmad, Muhammad, F.U.

“…A study of the spectroscopic properties, as well as polarizability and optical basicity of TeO2–B2O3 glasses doped with CuO using density, XRD, and UV–Vis…”
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Structural, optical and elastic properties of silver oxide incorporated zinc tellurite glass system doped with Sm3+ ions by Tafida, R.A., Halimah, M.K., Muhammad, F.D., Chan, K.T., Onimisi, M.Y., Usman, A., Hamza, A.M., Umar, S.A.

“…Zinc tellurite glasses in the form of [{(TeO2)0.7 (ZnO) 0.3}0.99 (Sm2O3)0.01]1-y (Ag2O) y, y = 0.005. 0.01, 0.015, 0.02 and 0.025 M fraction is prepared by the…”
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Structural, elastic, thermo-physical and gamma radiation shielding efficiency of MnO2 doped TeO2-PbO-ZnO glasses by Alazoumi, S.H., Umar, S.A., Ahmad, A.F., Sidek, H.A.A., Awshah, Abdulbaset A., Thakur, S., Geidam, I.G.

“…This paper presents the fabrication of glasses with chemical formula [(TeO2)0.70 – (ZnO)0.22 – (PbO)0.08] 1-x (MnO2)x where x = 0.02, 0.04, 0.06, 0.08 and 0.1…”
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Optical properties of graphene oxide-coated tellurite glass for potential fiber optics by Azlina, Y, Azlan, M.N., Suriani, A.B., Halimah, M.K., Umar, S.A.

“…In this work, we synthesize graphene oxide (GO)-coated tellurite glass for the improved optical performance of fiber optics. A series of tellurite glass system…”
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Study of rice husk silicate effects on the elastic, physical and structural properties of borotellurite glasses by Halimah, M.K., Umar, S.A., Chan, K.T., Latif, A.A., Azlan, M.N., Abubakar, A.I., Hamza, A.M.

“…Successful extraction of high purity SiO2 (about 99%) from rice husk (waste) was achieved in this work using the cold acid leaching method. Glass series…”
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Optical performance of neodymium nanoparticles doped tellurite glasses by Azlina, Y., Azlan, M.N., Halimah, M.K., Umar, S.A., El-Mallawany, R., Najmi, G.

“…A series of neodymium NPs doped tellurite glass with composition of (TeO2)0.7(B2O3)0.3]0.7 (ZnO)0.3}1- x (Nd2O3 NPs) x (x = 0.005, 0.01, 0.02, 0.03, 0.04 and…”
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Elastic properties of TeO2–ZnO–Ag2O doped with Nd2O3 by wshah, Abdulbaset A.A., Halimah, M.K., Alazoumi, S.H., Umar, S.A., Ibrahim, G.G.

“…A series of Neodymium doped zinc-tellurite glasses incorporated with Ag2O with chemical composition {[(TeO2)0.70(ZnO) 0.30] (1-X)Nd2O3(X)}(0.99)Ag2O(0.01),…”
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Effect of erbium nanoparticles on structural and spectroscopic properties of bio-silica borotellurite glasses containing silver oxide by Halimah, M.K., Hamza, A.M., Muhammad, F.D., Chan, K.T., Umar, S.A., Umaru, I., Geidam, I.G.

“…Er3+ NPs doped bio-silica borotellurite glasses containing silver oxide were prepared using melt quenching techniques. The silica used was extracted from rice…”
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Thermo-physical and elastic properties of Bi2O3 doped silica borotellurite glasses by Geidam, I.G., Matori, K.A., Halimah, M.K., Chan, K.T., Muhammad, F.D., Ishak, M., Umar, S.A., Hamza, A.M.

“…Five different samples of bismuth silica borotellurite (BSBT) glasses with the empirical equation {[(TeO2)0.7 (B2O3)0.3]0.8 (RHA)0.2}1−x (Bi2O3)x was…”
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Oxide ion/electronic polarizability, optical basicity and linear dielectric susceptibility of TeO2 – B2O3 – SiO2 glasses by Umar, S.A., Halimah, M.K., Ibrahim, G.G., Alade, I.O., Azlan, M.N., El-Mallawany, R., Hamza, A.M., Nazrin, S.N., Grema, L.U., Otto, M.S.

“…A system of bio-silica borotellurite glasses was fabricated based on the chemical formula [(TeO2)0.7 (B2O3)0.3]1-x (SiO2)x with x = 0.1, 0.2, 0.3, and 0.4…”
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New shielding ZnO-PbO-TeO2 glasses by El-Mallawany, R., Kavaz, E., Perişanoğlu, U., Tekin, H.O., Alazoumi, S.H., Umar, S.A., El-Agawany, F.I., Rammah, Y.S.

“…The effect of PbO and TeO2 concentration on the photon, fast neutron and charged particles shielding capacity of the ternary ZnO-PbO-TeO2 glass systems with…”
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Graphene oxide deposition on neodymium doped zinc borotellurite glass surface: Optical and polarizability study for future fiber optics by Azlina, Y., Azlan, M.N., Hajer, S.S., Halimah, M.K., Suriani, A.B., Umar, S.A., Hisam, R., Zaid, M.H.M., Iskandar, S.M., Kenzhaliyev, B.K., Nitsenko, A.V., Yusof, N.N., Imed, Boukhris

“…Neodymium oxide doped tellurite-based glass has been widely documented for potential uses in optoelectronics, but graphene oxide (GO)-coated tellurite-based…”
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Optical and structural properties of rice husk silicate incorporated borotellurite glasses doped with erbium oxide nanoparticles by Umar, S. A., Halimah, M. K., Chan, K. T., Amirah, A. A., Azlan, M. N., Grema, L. U., Hamza, A. M., Ibrahim, G. G.

“…A system of erbium oxide nanoparticles doped rice-husk-silicate borotellurite glasses with compositional formula, {[(TeO 2 ) 0.7 (B 2 O 3 ) 0.3 ] 0.8 (SiO 2 )…”
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