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Results 11-20 of 32 (Search time: 0.003 seconds).
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Issue DateTitleAuthor(s)
2017Radionuclide concentrations and excess lifetime cancer risk due to gamma radioactivity in tailing enriched soil around Maiganga coal mine, Northeast NigeriaKolo, Matthew Tikpangi; Amin, Y. M.; Khandaker, M. U.; Abdullah, W. H. B.
2017Evaluation of Natural Radioactivity and Radiological Health Implications Of Oniru Beach Lagos, South-Western, NigeriaOluwaseyi, Jegede; Kasali, Suraju; Kolo, Matthew Tikpangi
2017-08-01Crystal structure refinement of co-doped Ba0.88Ca0.12Ti0.975Sn0.025O3 ceramicAhmadu, Umaru; Oyeleke, I. Olarinoye; Agida, Moses; M.Muhammad, Auwal; B. Usman, Abdulwaliyu
2017-09-05Structural analysis of neutron-irradiated (Ba0.88Ca0.12Ti0.975Sn0.025)O3 ceramicAhmadu, Umaru; B. Usman, Abdulwaliyu; M.Muhammad, Auwal; I. Olarinoye, Oyeleke; Agida, Moses
2017-09-01IMPEDANCE, DIELECTRIC AND MODULUS STUDY OF Ti-doped LiSn2(PO4)3Mohammed, Isah Kimpa; Ahmadu, Umar; Uthman, Isah Kasim; Mann, Abdullah; Ibrahim, Sharifat O.
2017-09Impedance, dielectric and modulus study of Ti-doped LiSn2(PO4)3Ahmadu, U.; .U.Isah, K.; A, .Mann; M.I., .Kimpa; .O. Ibrahim, S.
2017-12-12BULK GERMANIUM OPTICAL PROPERTIES: THE EFFECTS OF EXTINCTION/ABSORPTION COEFFICIENTS AND CRYSTAL MOMENTUM IN THE INFRARED REGIONMohammed, Isah Kimpa
2017-04LiSn1.6Ti0.4(PO4) ceramic powder was synthesized via solid state reaction and investigated for electrical and dielectric properties for use as solid electrolyte. X-ray diffraction shows that it has rhombohedral R3 ̅c NASICON-type structure with unreacted phase of SnO2. Impedance study in the temperature range 300 to 740 K and frequency range 300 kHz-3 GHz were carried out together with dielectric permittivity studies under the same conditions. The determined bulk and grain boundary conductivities are 1.39 x 10-3 S/cm and 3.39 x 10-4 S/cm at 740 K, respectively, while their corresponding room temperature conductivities are 6.31 x 10-6 S/cm and 1.72 x 10-6 S/cm, respectively. Activation energies determined from Arrhenius plot are 0.67 eV and 0.78 eV for bulk and grain boundary, respectively. The determined dielectric constant ε^' has a value of 40 at 303 K and reached a maximum of 1790 at 740 K, which is high compared to most reported values for NASICON and indicate that LiSn1.6Ti0.4(PO4) could be a promising candidate for application as solid electrolyte at elevated temperatures.Ahmadu, . Umaru; Uthman Isah, Kasim; Abdullahi, Mann; O.Ibrahim, S; Mohammed Isa, Kimpa
2017-09Analysis of Structure, Microstructure and Chemical Composition of Solid Solution of Co-Doped Barium Calcium Stannate TitanateAhmadu, U.; M.I., Abdullahi; B.Usman, Abdulwaliyu; E.E., Uno; Agida, Moses
2017-05-03Structural and Microstructural study of gamma-ray irradiated co-doped Barium Titanate (Ba0.88Ca0.12Ti0.975Sn0.025O3)Ahmadu, Umaru; Abubakar Soje, Ahmadu; Abdulwaliyu Usman, Bidemi; Muhammad Musa, Auwal; Uthman Isah, Kasim