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46篇 您的检索式:作者名="Umoren"
    题名 作者 年代 出处 被引量
1Approximate solutions of Klein-Gordon equation with improved Manning-Rosen potential in D-dimensions using SUSYQM显示文摘In this paper, we present solutions of the Klein–Gordon equation for the improved Manning–Rosen potential for arbitrary l state in d-dimensions using the supersymmetric shape invariance method. We obtained the energy levels and the corresponding wave functions expressed in terms of Jacobi polynomial in a closed form for arbitrary l state. We also calculate the oscillator strength for the potential.A.N.Ikot H.Hassanabadi H.P.Obong Y.E.Chad Umoren C.N.Isonguyo B.H.Yazarloo 2014Chinese Physics B2014,23,12:3
2Comparison of antioxidant activity of insulin, Ocimum gratissimum L., and Vernonia amygdalina L. in type 1 diabetic rat model显示文摘OBJECTIVE: Diabetes mellitus(DM) is known to be associated with increase of oxidative stress products. The direction of effect of any treatment on these products could therefore be a reliable measure of its efficacy on DM. So the aim of this study was to investigate the activity of insulin, Ocimum gratissimum L.(OG) and Vernonia amygdalina L.(VA) on oxidative stress products.METHODS: Thirty-six female Wistar rats weighing 150–200 g were randomly divided into six groups of six rats each. Thirty rats were induced for type 1 DM(DM1) with a single intraperitoneal administration of 65 mg/kg body weight of streptozotocin. Group 1 was normal control and was administered distilled water while Group 2 served as DM1 control group; Groups 3, 4, 5 and 6 were diabetic rats treated with 208 mg/kg OG(DM1 + OG), 52 mg/kg VA(DM1 + VA), 208 mg/kg OG + 52 mg/kg VA(DM1+OG +VA) and 0.16 IU insulin(DM1 + insulin) respectively. Determination of methemoglobin and sulfhemoglobin was achieved by the absorption spectrum principle. Red blood cell(RBC) catalase was assayed by continuous spectrophotometric method.RESULTS: The RBC catalase concentration was significantly decreased in the DM1 and DM1+VA groups when compared with the normal control. DM1 + OG significantly increased RBC-catalase when compared to DM1. The methemoglobin concentration was significantly reduced in the DM1, DM1 + VA, DM1 + OG + VA and DM1 + insulin groups when compared to the normal control group. The sulfhemoglobin concentration was significantly increased in the diabetic control and the diabetic treated groups when compared to the normal control. DM1 + OG reduced the sulfhemoglobin concentration when compared to DM1. The blood glucose concentration of all the diabetic groups was significantly raised compared to normal control. OG, VA and insulin significantly reduced the blood glucose concentration with the efficacy of OG and VA higher than insulin.CONCLUSION: Adverse alteration of oxidative indices were observed in type 1 DM model. Treatment with OG and insulin showed potent antioxidant activity, while the hypoglycemic efficacy of OG and VA were higher than insulin.Uduak Akpan Okon Idorenyin Udo Umoren 2017Journal of Integrative Medicine2017,15,4:3
3Inhibitive and adsorption behaviour of carboxymethyl cellulose on mild steel corrosion in sulphuric acid solution显示文摘M.M. Solomon S.A. Umoren I.I. Udosoro A.P. Udoh 2009Corrosion Science2009,,4:2
4Natural products for materials protection:Inhibition of mild steel corrosion by date palm seed extracts in acid media显示文摘Umoren S Gasem Z M Obot I B 2013Ind Eng Chem Res2013,52,14:1
5Concentration and chemical speciation for the determination ofCu, Zn, Ni, Pb and Cd from refuse dump soils using the optimized BCR sequential extraction procedure显示文摘]Umoren I U Udoh A P UdousoroII 2007Environmentalist2007,27,:1
6Preparationand characterization of biodegradable polymer mud basedon millet starch显示文摘Ukachukwu C 0 Ogbobe 0 Umoren S A 2010Chemical Engineering Communications2010,197,8:1
7Concentration andchemical speciation for the determination of Cu,Zn,Ni,Pb andCd from refuse dump soils using the optimized BCR sequentialextraction procedure显示文摘Umoren I Udoh A P Udousoro I I 2007The Environmentalist2007,27,2:1
8Synergistic and antagonistic effects between halide ions and carboxymethyl cellulose for the corrosion inhibition of mild steel in sulphuric acid solution显示文摘S. A. Umoren M. M. Solomon I. I. Udosoro A. P. Udoh 2010Cellulose2010,,3:1
9Concentration and chemical speciation for the determination of Cu, Zn, Ni, Pb and Cd from refuse dump soils using the optimized BCR sequential extraction procedure 显示文摘Umoren I Udoh A Udousoro I 2007The Environmentalist2007,27,2:1
10Inhibitor of mild steel corrosion in acidic medium using synthetic and naturally occurring polymers and synergistic hal- ide additives显示文摘Umoren S A Ogbobe O Igwe I O 2008Corrosion Science2008,50,7:1
11Comparative Analysis and Performance Improvement of Production Lines in Champion Breweries Plc and Nigerian Bottling Company显示文摘In this study,a comparative analysis of the production lines of Champion Breweries PLC and Nigerian Bottling Company was performed in order to determine ways of improving the productivity growth in Champion Breweries Plc.To achieve this aim,a bottling line model was developed and validated;studies were also carried out to ascertain the bottling line technical practices that are presently being adopted in the brewery plant.The problems affecting the smooth operation of the bottling lines were unraveled and methods of solving them have been recommended.Also,the overall equipment effectiveness(OEE)model was developed and used in the analysis in addition to other performance measurement techniques,to measure the production losses and to identify areas of process improvements.Results showed that the OEE in the existing production lines of Champion Lager Beer and Nigerian Bottling Company(Coca-Cola)is 61.5% and 62.0% respectively.Theoretical validation technique was used to validate these production lines and as a result,the validated model shows an improvement in the OEE score.The validated OEE models are 63.1% and 63.0% respectively.The adoption of the results in these validated models will definitely lead to improved productivity of both production lines.Ini Udofia Umoren Godson Ogubuike Osueke Kelechi Thank God Ezirim 2021Journal of Mechanics Engineering and Automation2021,11,3:1
12Nutritional characteri- sation and antioxidant capacity of different tissues of Artemisia an- nua L显示文摘Brisibe E A Umoren U E Brisibe F 2009Food Chemistry2009,115,4:1
13Inhibitor of mild steel corrosion in acidic medium using synthetic and nat- urally occurring polymers and synergistic halide additives 显示文摘UMOREN S A OGBOBE O IGWE I O 2008Corros Sci2008,50,7:1
14Inhibition of mild steel corrosion in acidic medium using synthetic and naturally occurring polymers and synergistic halide additives 显示文摘Umoren S A Ogbobe O Igwe I O 2008Corrosion Science2008,,50:1
15Preparation and characterization of biodegradable polymer mud based on millet starch 显示文摘Ukachukwu C O Ogbobe O Umoren S A 2010Chemical Engineering Communications2010,197,8:1
16Concentration and chemical spe-eiation for the determination of Cu,Zn,Ni,Pb and Cd from refuse dump soil using the optimized BCR sequential extraction procedure显示文摘Umoren I U Udoh A P Udousoro I I 2007The Enviromnentalist2007,27,:1
17Concentration and chemical speciation for the determination of Cu, Zn, Ni, Pb and Cd from refuse dump soils using the optimized BCR sequential extraction procedure显示文摘I U Umoren A P Udoh I I Udousoro 2007Environmentalist2007,27,:1
18Inhibition of mild steel corrosion in acidic medium using synthetic and natural- ly occurring polymers and synergistic halide additives 显示文摘Umoren S A Ogbobe O Igwe I O 2008Corr Sci2008,50,7:1
19Inhibitive and Adsorption Behavior of Carboxymethyl Cellulose on Mild Steel Corrosion in Sulphuric Acid Solution显示文摘SOLOMON M M UMOREN S A 2010Corrosion Science2010,52,4:1
20Concentration and chemical speciation for the determination of Cu, Zn, Ni, Pb and Cd from refuse dump soils using the optimized BCR sequential extraction procedure显示文摘Umoren I Udoh A Udousoro I 2007Environmentalist2007,27,2:1
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