Search Results - "Umar, A. S"

Timescales of Quantum Equilibration, Dissipation and Fluctuation in Nuclear Collisions by Simenel, C., Godbey, K., Umar, A. S.

“…Understanding the dynamics of equilibration processes in quantum systems as well as their interplay with dissipation and fluctuation is a major challenge in…”
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Superfluid fission dynamics with microscopic approaches by Simenel, C, Scamps, G, Lacroix, D, Umar, A S

“…Recent progresses in the description of the latter stage of nuclear fission are reported. Dynamical effects during the descent of the potential towards…”
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The TDHF code Sky3D by Maruhn, J.A., Reinhard, P.-G., Stevenson, P.D., Umar, A.S.

“…The nuclear mean-field model based on Skyrme forces or related density functionals has found widespread application to the description of nuclear ground…”
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Knowledge and practice of exclusive breastfeeding in Kware, Nigeria by Oche, M O, Umar, A S, Ahmed, H

“…For almost all infants, breastfeeding remains the simplest, healthiest and least expensive feeding method that fulfils the infants' needs. Despite strong…”
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Quasifission Dynamics in Microscopic Theories by Godbey, Kyle, Umar, A. S.

“…In the search for superheavy elements quasifission reactions represent one of the reaction pathways that curtail the formation of an evaporation residue. In…”
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An Investigation of Neutrino-driven Convection and the Core Collapse Supernova Mechanism Using Multigroup Neutrino Transport by Mezzacappa, A, Calder, A. C, Bruenn, S. W, Blondin, J. M, Guidry, M. W, Strayer, M. R, Umar, A. S

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Role of the Skyrme tensor force in heavy-ion fusion by Stevenson, P D, Suckling, E B, Fracasso, S, Simmons, E D, Umar, A S

“…We make use of the Skyrme effective nuclear interaction within the time-dependent Hartree-Fock framework to assess the effect of inclusion of the tensor terms…”
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Effect of neodymium nanoparticles on optical properties of zinc tellurite glass system by Halimah, M. K., Awshah, A. A., Hamza, A. M., Chan, K. T., Umar, S. A., Alazoumi, S. H.

“…A system of zinc tellurite glasses with chemical composition [(TeO 2 ) 0.70 (ZnO) 0.30 ] 1-x (Nd 2 O 3 NPs) x , where x ranged from 0.01 to 0.05 molar fraction…”
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Microscopic study of the effect of intrinsic degrees of freedom on fusion by Simenel, C, Dasgupta, M, Hinde, D J, Oberacker, V E, Umar, A S, Williams, E

“…Fusion cross-sections are computed for the 40Ca+40Ca system over a wide energy range with two microscopic approaches where the only phenomenological input is…”
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Profiling of Secondary Metabolites from Crassocephalum crepidioides (Wild Leafy Vegetable): Validation of Ethnomedicinal Claim by in-vitro and in-silico Studies by O. M. Bello, A. S. Umar, M. H. Sada

“…Crassocephalum crepioides, labeled as poor man’s food is one of the neglected and underutilized vegetables in Nigeria. The objective of this paper is therefore…”
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Microscopic study of the triple-α reaction by Umar, A S, Maruhn, J A, Itagaki, N, Oberacker, V E

“…We present a microscopic dynamical study of the reactions involving three 4He clusters. We show that the much discussed triple-α linear chain configuration of…”
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Dielectric Constant, Metallization Criterion and Optical Properties of CuO Doped TeO2–B2O3 Glasses by Nazrin, S. N., Umar, S. A., Halimah, M. K., Marian, M. M., Najwa, Z. W., Jufa, M. S., Syahirah, M. T., Zuhasanah, Z., Azlan, M. N., Geidam, I. G., Boukhris, Imed, Kebaili, Imen

“…Copper oxide doped TeO 2 –B 2 O 3 glass system with empirical formula; [ B 2 O 3 ) 0.3 TeO 2 0.7 1 - x ( CuO ) x was fabricated using the melt quenching…”
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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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Comprehensive comparison on optical properties of samarium oxide (micro/nano) particles doped tellurite glass for optoelectronics applications by Azlan, M. N., Hajer, S. S., Halimah, M. K., Umar, S. A., Zaid, M. H. M., Hisam, R., Iskandar, S. M., Kenzhaliyev, B. K., Kassymova, G. K., Yusof, N. N.

“…Rare-earth oxides microparticles doped tellurite-based glass have been studied extensively to improve the capability of optoelectronic devices. We report a…”
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Shape evolution and collective dynamics of quasifission in the time-dependent Hartree-Fock approach by Umar, A. S., Oberacker, V. E., Simenel, C.

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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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Investigation of Structural and Optical Properties of Graphene Oxide-Coated Neodymium Nanoparticles Doped Zinc-Tellurite Glass for Glass Fiber by Shaari, H. R., Azlan, M. N., Azlina, Y., Hajer, S. S., Nazrin, S. N., Umar, S. A., Kenzhaliyev, B. K., Boukhris, Imed, Al-Hada, Naif Mohammed

“…Carbon-based materials such as graphene oxide are known as attractive candidate to improve the current optoelectronic and laser devices. In this work,…”
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Red emission, upconversion and intensity parameters of erbium oxide doped tellurite glass for laser glass by Azlan, M. N., Azlina, Y., Shaari, H. R., Nazrin, S. N., Al-Hada, Naif Mohammed, Boukhris, Imed, Umar, S. A., Zaid, M. H. M., Hisam, R., Iskandar, S. M., Kenzhaliyev, B. K.

“…This work presents the effect of erbium oxide in tellurite glass on the intensity parameters, emission and upconversion to be used as laser glass. We select…”
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Fusion window problem in time-dependent Hartree-Fock theory revisited by Tohyama, M., Umar, A. S.

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Emission properties of reduced graphene oxide-coated Er3+-tellurite glass for fiber optics by Azlina, Y., Azlan, M. N., Suriani, A. B., Shaari, H. R., Boukhris, Imed, Kebaili, Imen, Al-Hada, Naif Mohammed, Umar, S. A., Kenzhaliyev, B. K., Zaid, M. H. M., Hisam, R., Iskandar, S. M., Nazrin, S. N., Yusof, N. N., Katubi, Khadijah Mohammedsaleh, Alrowaili, Z. A., Al-Buriahi, M. S., Tafida, R. A., Fauzi, Fika

“…In this work, reduced graphene oxide-coated zinc borotellurite doped with erbium oxide nanoparticles denoted as ZBTEr (NPs)-rGO was studied as an approach to…”
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