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17篇 您的检索式:作者名="Jibrin"
    题名 作者 年代 出处 被引量
1Agronomic measures for increasing P availability to crops显示文摘Horst W J Kamh M Jibrin J M 2001Plant Soil2001,237,:1
2Analysis of Gleason grade and scores in 90 Nigerian Africans with prostate cancer during the period 1994 to 2004显示文摘Ugare UG Bassey IE Jibrin PG 2012Afr Health Sci2012,12,1:1
3Chromium(III)-imprinted silica gel for speciation analysis of chromium in environmental water samples with ICP-MS detection显示文摘Nan Zhang Jibrin Sabo Suleiman Man He Bin Hu 2007Talanta2007,,2:1
4Agronomic measures for increasing P availability to crops 显示文摘Horst W Kamh M Jibrin J 2001Plant and Soil2001,237,37:1
5Testing the effect of solar wind parameters and geomagnetic storm indices on Galactic cosmic ray flux variation with automatically-selected Forbush decreases显示文摘Forbush decrease(FD),discovered by Scott E.Forbush about 80 years ago,is referred to as the non-repetitive short-term depression in Galactic cosmic ray(GCR)flux,presumed to be associated with large-scale perturbations in solar wind and interplanetary magnetic field(IMF).It is the most spectacular variability in the GCR intensity which appears to be the compass for investigators seeking solar-terrestrial relationships.The method of selection and validation of FD events is very important to cosmic ray(CR)scientists.We have deployed new computer software to determine the amplitude and timing of FDs from daily-averaged CR data at Oulu Neutron Monitor station.The code selected 230 FDs between 1998 and 2002.In an attempt to validate the new FD automated catalog,the relationship between the amplitude of FDs,and IMF,solar wind speed(SWS)and geomagnetic storm indices(Dst,kp,ap)is tested here.A two-dimensional regression analysis indicates significant linear relationship between large FDs(CR(%)≤-3)and solar wind data and geomagnetic storm indices in the present sample.The implications of the relationship among these parameters are discussed.Jibrin Adejoh Alhassan Ogbonnaya Okike Augustine Ejikeme Chukwude 2021Research in Astronomy and Astrophysics2021,21,9:1
6Analysis of Gleason grade and scores in 90 Nigerian Africans with prostate cancer during the period 1994 to 2004显示文摘Ugare UG Bassey IE Jibrin PG 2012Afr Health Sci2012,12,1:1
7Separation/preconcentration of trace amounts of Cr, Cu and Pb in environmental samples by magnetic solid-phase extraction with Bismuthiol-II-immobilized magnetic nanoparticles and their determination by ICP-OES显示文摘Jibrin Sabo Suleiman Bin Hu Hanyong Peng Chaozhang Huang 2008Talanta2008,,5:1
8Determination of Cd,Co,Ni and Pb in biological samples by microcolumn packed with black stone (Pierre noire) online coupled with ICP-OES显示文摘Suleiman Jibrin Sabo Hu Bin Huang Chao-zhang 2008Journal of Hazardous Materials2008,157,23:1
9Sepa- ration/preconcentration of trace amounts of Cr, Cu and Pb in environmental samples by magnetic solid-phase extraction with Bismuthiol- Ⅱ -immobilized magnetic nanoparticles and their determination by ICP-OES 显示文摘Jibrin Sabo Suleiman Hu Bin PengHanyong 2009Talanta2009,77,:1
10Separation/preconcentration of trace amounts of Cr, Cu and Pb in environmental samples by magnetic solid-phase extraction with Bismuthiol-II-immobilized magnetic nanoparticles and their determination by ICP-OES显示文摘Jibrin Sabo Suleiman Bin Hu Hanyong Peng Chaozhang Huang 2008Talanta2008,,5:1
11Catalytic oxidative desulfurization of gasoline using phosphotungstic acid supported on MWW zeolite显示文摘Catalysts for the desulfurization of gasoline samples were synthesized via the immobilization of well-dispersed phosphotungstic acid(HPW)on Mobil compo-sition of matter-twenty-two(MWW)zeolite.Characteriza-tion results indicated that these catalysts possess a mesoporous structure with the retention of the Keggin structure of immobilized HPW.Relevant reaction para-meters influencing sulfur removal were systematically investigated,including HPW loading,catalyst dosage,temperature,initial S-concentration,molar ratio of oxidant to sulfide(O/S),volume ratio of MeCN to model oil(Ext./oil),and sulfide species.The 40 wt-%HPW/MWW catalyst exhibited the highest catalytic activity with 99.6%dibenzothiophene sulfur removal from prepared samples.The 40 wt-%HPW/MWW catalyst was recycled four times and could be easily regenerated.Finally,as an exploratory study,straight-run-gasoline and fluid catalytic cracking gasoline were employed to accurately evaluate the desulfurization performance of 40 wt-%HPW/MWW.Our research provides new insights into the development and application of catalysts for desulfurization of gasoline.Hanlu Wang Idris Jibrin Xingye Zeng 2020Frontiers of Chemical Science and Engineering2020,14,4:1
12Should absolute lymphocyte count be used as a surrogate marker for CD4^+ count in patients with HIV/AIDS? 显示文摘Jibrin YB Yusuph H Garbati MA 2006Afr J Med Med Sci2006,35,1:1
13Investigation of the relation between space-weather parameters and Forbush decreases automatically selected from Moscow and Apatity cosmic ray stations during solar cycle 23显示文摘We present the results of an investigation of the relation between space-weather parameters and cosmic ray(CR)intensity modulation using algorithm-selected Forbush decreases(FDs)from Moscow(MOSC)and Apatity(APTY)neutron monitor(NM)stations during solar cycle 23.Our FD location program detected 408 and 383 FDs from MOSC and APTY NM stations respectively.A coincident computer code employed in this work detected 229 FDs that were observed at the same Universal Time(UT)at the two stations.Out of the 229 simultaneous FDs,we formed a subset of 139 large FDs(%)≤-4 at the MOSC station.We performed a two-dimensional regression analysis between the FD magnitudes and the space-weather data on the two samples.We find that there were significant space-weather disturbances at the time of the CR flux depressions.The correlation between the space-weather parameters and decreases in galactic cosmic ray(GCR)intensity at the two NM stations is statistically significant.The implications of the present space-weather data on CR intensity depressions are highlighted.Jibrin Adejoh Alhassan Ogbonnaya Okike Augustine Ejikeme Chukwude 2021Research in Astronomy and Astrophysics2021,21,11:0
14Testing the Empirical Relationship between Forbush Decreases and Cosmic Ray Diurnal Anisotropy显示文摘The abrupt aperiodic modulation of cosmic ray(CR)flux intensity,often referred to as Forbush decrease(FD),plays a significant role in our understanding of the Sun-Earth electrodynamics.Accurate and precise determinations of FD magnitude and timing are among the intractable problems in FD-based analysis.FD identification is complicated by CR diurnal anisotropy.CR anisotropy can increase or reduce the number and amplitude of FDs.It is therefore important to remove its contributions from CR raw data before FD identification.Recently,an attempt was made,using a combination of the Fourier transform technique and FD-location machine,to address this.Thus,two FD catalogs and amplitude diurnal variation(ADV)were calculated from filtered(FD1 and ADV)and raw(FD2)CR data.In the current work,we test the empirical relationship between FD1,FD2,ADV and solar-geophysical characteristics.Our analysis shows that two types of magnetic fields-interplanetary and geomagnetic(Dst)-govern the evolution of CR flux intensity reductions.Jibrin Adejoh Alhassan Ogbonnaya Okike Augustine Ejikeme Chukwude 2022Research in Astronomy and Astrophysics2022,22,5:0
15Responses of Lowland NERICA and Improved Oryza sativa Rice to Phosphorus and Nitrogen in Sudan Savanna Agroecosystem显示文摘J. M. Jibrin S. Oikeh M. A. Hussaini S. Miko B. M. Shehu M. Sie 2010Journal of Agricultural Science and Technology2010,4,4:0
16Impact Pressure Distribution in Flat Fan Nozzles for Descaling Oil Wells显示文摘Abubakar Jibrin Abbas Ghasem Ghavami Nasr Amir Nourian Godpower Chimagwu Enyi 2016Journal of Energy and Power Engineering2016,10,6:0
17Monte Carlo forecasting of time series data using Polynomial-Fourier series model显示文摘The perishable nature of tourism products and services makes forecasting an important tool for tourism planning,especially in the current COVID-19 pandemic time.The forecast assists tourism organizations in decision-making regarding resource allocations to avoid shortcomings.This study is motivated by the need to model periodic time series with linear and nonlinear trends.A hybrid Polynomial-Fourier series model that uses the combination of polynomial and Fourier fittings to capture and forecast time series data was proposed.The proposed model is applied to monthly foreign visitors to Turkey from January 2014 to August 2020 dataset and diagnostic checks show that the proposed model produces a statistically good fit.To improve the model forecast,a Monte Carlo simulation scheme with 100 simulation paths is applied to the model residue.The mean of the 100 simulation paths within±2σbounds from the model curve was taken and found to give statistically acceptable results.Salim Jibrin Danbatta Asaf Varol 2021International Journal of Modeling, Simulation, and Scientific Computing2021,12,3:0
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