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So.e Refinement o. Ho.der’s and Its Reverse Inequality

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Advances in Pure Mathematics 2023年第9期13卷 597-609页

作者： Musa o. Tijani Adefisayo.ojo o.udo.un Akinso.a Department o. Mathematics Missouri State University Springfield MO USA Department o. Mathematics Washington State University Pullman WA USA

Ho.der’s inequality, its refinement, and reverse have received co.siderable attentio. in the theo.y o. mathematical analysis and differential equatio.s. In this paper, we give so.e refinements o. Ho.der’s inequality and its reverse using a simple analytical technique o. algebra and calculus. o.r results sho. many results related to.ho.der’s inequality as special cases o. the inequalities presented.

关键词： Yo.ng’s Inequality Kittaneh-Manasrah’s Inequality Integrable Functio. Ho.der’s Cauchy-Schwarz Inequality

Antibacterial po.ency o. methano. extracts o. lo.er plants

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Jo.rnal o. Zhejiang University-Science B(Bio.edicine & Bio.echno.o.y) 2007年第3期8卷 189-191页

作者： ojo o.o. AJAYI A.o. ANIBIJUWo. I.I. Department o. Micro.io.o.y Faculty of Science University of Ado-Ekiti Ado-Ekiti Ekiti State 234030 Nigeria

Antibacterial po.ency o. methano. extracts o. three green lo.er plants, Pneumato.teris afra, Platycerium bifurcatum and Nephro.epsis bisserata was determined using agar dilutio. metho. o. clinical strains o. Escherichia co.i, Staphylo.o.cus aureus, Klebsiella spp. and Salmo.elia typhi. Antibacterial activities were o.served at co.centratio.s o. 12.5, 25.0, 50.0 and 100.0 μg/ml. Their minimum inhibito.y co.centratio.s ranged fro. 12.5~100 μg/ml. Extracts o. P. afra and P. bifurcatum were mo.t active. Antibacterial activities o.served with N. bisserata were less pro.o.nced with no.detectable activity at extract co.-centratio.s o. 12.5 and 25.0 μg/ml. E. co.i, to.ether with S. aureus appeared to.be the mo.t susceptible o. the test bacteria while Klebsiella spp. was least sensitive. The significance o. o.r findings is discussed.

关键词： Lo.er plants Extracts Antibacterial activity MIC (minimum inhibito.y co.centratio.)

Po.d Water Quality and Cyclo.s Po.ulatio. in Dracunculiasis Endemic Areas o. o.un State, Nigeria

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Jo.rnal o. Enviro.mental Science and Engineering 2010年第5期4卷 22-27页

作者： o. o.unto.e M.o. ojo D.A. ojo I.M. Adekunle Department o. Enviro.mental Management and To.ico.o.y University of Agriculture PMB 2240 Abeokuta Ogun State Nigeria Department o. Micro.io.o.y University of Agriculture PMB 2240 Abeokuta Ogun State Nigeria

This study investigated the asso.iatio. between Cyclo.s po.ulatio. and physico.chemical pro.erties o. po.d water in villages selected fro. o.eda and o.afemi-o.o.e areas o. o.un State, Nigeria. Epidemio.o.ical data o. guinea wo.m were co.lected fro. Glo.al 2000 So.th-West Zo.al o.fice. Two.villages were selected fro. each o. o.eda and o.afemi-o.o.e LGAs while o.e village was sampled fro. Abeo.uta No.th LGA as co.tro.. Physico.chemical analysis and micro.co.ic examinatio. o. po.d water utilized fo. do.estic purpo.e in the selected villages were co.ducted. Mean values o. 6.78±0.10, 33.00±0.14℃, 1.09＋0.80 mg/L and 1.30±0.25 mg/L were reco.ded fo. pH, temperature, Do.and nitrate respectively while co.tro. had 7.30±0.14, 36.30±14℃2, 2.72±0.14 mg/L and 5.80±0.57 mg/L. These values with the exceptio. o. Do.and nitrate were within WHo.standard but vary significantly （P〈0.05） between the villages. The results further sho.ed that Bo., Co. and acidity were po.itively co.related with Cyclo.s po.ulatio. during the rainy and dry seaso.s while temperature, nitrate, pH, and alkalinity have negative co.relatio. co.fficients （r=-0.81, -0.91） with Cyclo.s po.ulatio. during the two.seaso.s. Regressio. analysis sho.ed that nitrate, Bo. and acidity levels explained 67.7 percent, 50.4 percent and 44.5 percent o. Cyclo.s po.ulatio. in the po.ds. Guinea wo.m eradicatio. in endemic rural areas sho.ld inco.po.ate eco.o.ical strategy.

关键词： Water quality dracunculiasis Cyclo.s asso.iative analysis.

Energy Efficiency in Building: Case o. Buildings at the University o. Ibadan, Nigeria

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Jo.rnal o. Building Co.structio. and Planning Research 2015年第1期3卷 18-26页

作者： K. M. o.unfa T. o. ojo V. o. o.unfa o. S. o.unakin Department o. Mechanical Engineering University of Ibadan Ibadan Nigeria Department o. Estate Management The Polytechnic Ibadan Ibadan Nigeria Department o. Mechanical Engineering Covenant University Ota Nigeria

Nigeria to.ay faces serio.s challenge in pro.iding adequate energy to.meet the needs o. her citizenry. Effo.ts are currently geared to.ards generatio. o. mo.e energy to.ease the pro.lem. While these effo.ts are co.mendable, it is equally desirable to.explo.e ways to.minimize co.sumptio. o. generated energy. The o.jective o. this wo.k is to.investigate the effect o. building o.ientatio. o. energy demand in buildings. This paper co.sidered the use o. standard design co.sideratio.s, fundamental co.ling lo.d equatio.s and the guidelines stipulated by the American So.iety o. Heating, Co.ling and Air co.ditio.ing Engineers (ASHRAE). The study takes the designs o. three buildings within the University o. Ibadan, Nigeria into.co.sideratio. with the view to.harness the energy saving po.entials thro.gh building o.ientatio. and selectio. o. efficient co.ling equipment. The results o.tained were 155.34, 224.75, 86.35 kW and 163.60, 232.04 and 90.64 kW fo. the three lecture envelo.es including the Faculty o. Science, CBN and the Department o. Chemistry lecture theatres using the No.th-So.th and East-West building o.ientatio.s respectively. Increase in energy demand o. 7.96, 7.29 and 4.29 kW was thus o.tained with the East-West building o.ientatio. o.er No.th-So.th. Energy efficiency is thus guaranteed with No.th-So.th building o.ientatio..

关键词： Energy Efficiency o.ientatio. Co.ling Lo.d Heating Ventilatio. and Air-Co.ditio.ing

Synthesis and fungicidal activity o. so.e sulphide derivatives o. o.phenyl-N-substituted phenylcarbamates

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Advances in Bio.o.ical Chemistry 2011年第3期1卷 122-127页

作者： F. E. Adelo.o.I. A. o. ojo o. S. Amuda 不详

Mo.o.ulphides o. o.phenyl-N-substituted phenylcar- bamates were prepared by the reactio. between o. phenyl-N-substituted phenylcarbamates and sulph- ur dichlo.ide while the co.respo.ding disulphides were prepared by the reactio. between o.phenyl-N- substituted phenylcarbamates and sulphur mo.o.h- lo.ide. The synthesized co.po.nds were characte-rized by elemental analysis, thin layer chro.ato.ra-phy (TLC), Fo.rier-transfo.m infrared, 1H and 13C nuclear magnetic reso.ance spectro.co.ic techniques. In vitro.fungicidal assay o. these sulphides against Fusarium o.yspo.um, Aspergillus niger, Aspergillus flavus and Rhizo.us sto.o.ifer sho.ed that they were mo.e fungicidal than their parent carbamates. The synthesized sulphides were mo.e active to.ards As-pergillus niger and Aspergillus flavus. There was little o. no.variatio.s in the fungicidal activities o. the synthesized mo.o.ulphides and disulphides o. o.phen- yl-N-substituted phenyl carbamates.

关键词： Fungicidal Activity Sulphide Derivatives Synthesis

Analysis o. Vertical Pro.iles o. Precipitable Liquid Water Co.tent in a Tro.ical Climate Using Micro.Rain Radar

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Jo.rnal o. Geo.cience and Enviro.ment Pro.ectio. 2019年第2期7卷 140-155页

作者： Jo.eph S. ojo o.o.o.u o. Dao.u o.alekan L. ojo Department o. Physics Federal University of Technology Akure Nigeria Department o. Physics Elizade University Ilara-Mokin Nigeria

In this paper, so.e distinctive features o. the vertical pro.ile o. precipitable liquid water co.tent (LWC) with co.siderable respect to.rain rates (R) and radar reflectivity (Z) o.tained in a tro.ical lo.atio. are presented. Assessment o. LWC allo.s applicatio.s in the specific area o. flight icing severity, aviatio. safety as well as signals traversing thro.gh the atmo.phere. The parameters were typically measured using vertically-po.nting Micro.Rain Radar (MRR) o.er a perio. o. 2 years (2011-2012) at Akure, a tro.ical lo.atio. o. Nigeria. The radar scanned at every 10 seco.ds and integrated o.er o.e minute samples to.reduce event lo.ging erro. asso.iated with the instrument. The vertical pro.ile o. the LWC typically reveals a pro.inent seaso.al variatio.. Ho.ever, majo.ity o. the LWC pro.iles has lo. LWC, less than 0.1 gm?3 while the maximum o.served LWC is abo.t 3.18 gm?3. A stro.g like ho.d relatio. was o.served between the melting layer height and the LWC, with the LWC reaches peak at the co.siderable height o. abo.t 4160 m which co.ncides precisely with the freezing height level (rain height o. ~4520 m) o. the study lo.atio.. Go.d co.relatio. was also.o.served between the LWC and R in mo.t o. the heights co.sidered. The results o.tained will assist system engineers to.assess the level o. abso.ptio., reflectio. and attenuatio. o. electro.agnetic signals as a result o. precipitable LWC alo.g the transmitting paths. The no.elty o. the present wo.k is in the area o. linking LWC and Z as against usual relatio. between Z and R.

关键词： Liquid Water Co.tent Micro Rain Radar Vertical Pro.ile Tro.ical Climate Radar Reflectivity Facto.

Sequence stratigraphy and depo.itio.al sequence interpretatio.:A case study o.“Geo.ge”Field,o.fsho.e Niger Delta,Nigeria

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Petro.eum Research 2018年第1期3卷 25-32页

作者： o.Abio.a M.T.o.o.o.ere J.S.ojo Department o. Applied Geo.hysics Federal University of TechnologyAkureNigeria

The seismic sequence stratigraphic analysis revealed fo.r depo.itio.al sequences(DS-1,DS-2,DS-3 and DS-4).The acco.panying systems tracts were interpreted and mapped in the study area based o. the lo. mo.ifs o. the reference well and the spatial distributio. o. the reco.nized co.strained surfaces:maximum flo.ding surfaces(MFSs),sequence bo.ndaries(SBs)and transgressive surfaces(TSs)o. the seismic *** systems in the study area co.prise lo.stand systems tracts(LSTs),transgressive systems tracts(TSTs)and highstand systems tracts(HSTs).The LSTs are represented by co.val facies do.inated by depo.itio. basinward o. the shelf-edge during maximum regressio. and are characterized by shallo.-water depo.itio. fro. gravity flo.s and/o. tractio. pro.esses within the shelf-edge o. canyo.-head *** sediments asso.iated with lo.stand systems tracts reco.nized in the study area are the fluvial channel sands and slo.e fans(SF).The transgressive sand units were interpreted as sho.eface sands depo.ited in the shelf regio. during rising sea *** systems tracts are characterized by intervals o. co.rsening and shallo.ing upwards,with bo.h fluvial and deltaic sands pro.rading laterally into.neritic *** the study area,the units are very *** highstand and lo.stand system tracts exhibit blo.ky lo. patterns and are asso.iated with the reservo.rs while the transgressive system tracts serve as seals to.the *** enviro.ment o. sediments depo.itio. in this area is delta plain,shelf,slo.e to.to. o. slo.e.

关键词： Sequence stratigraphic analysis Depo.itio.al systems Lo. mo.ifs Systems tracts Enviro.ment o. sediments depo.itio.

An Analytic Metho. fo. Designing Co.ntermeasures against Co.puter Intrusio.s

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通讯和计算机（中英文版） 2014年第1期11卷 10-21页

作者： Jo.hua ojo Nehinbe So.anke o.akunle o. Nehibe Jo.nso. Ige UK Co.lege o. Business and Co.puting llford Essex London IG2 6NW United Kingdom Department o. Co.puter Science Olabisi Onabanjo University Ago lwoye Nigeria Internal Co.tro. Nebson Limited Lagos Nigeria

Applicatio. o. Differential Transfo.matio. Metho. to.Bo.ndary Value Pro.lems o. o.der Seven and Eight

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American Jo.rnal o. Co.putatio.al Mathematics 2018年第3期8卷 269-278页

作者： R. B. o.unrinde o. M. ojo Department o. Mathematical Sciences Ekiti State University Ado Ekiti Nigeria

This paper presents the use o. differential transfo.matio. metho. (DTM), an appro.imating technique fo. so.ving linear higher o.der bo.ndary value pro.lems. Using DTM, appro.imate so.utio.s o. o.der seven and eight bo.ndary value pro.lems were develo.ed. Appro.imate results are given fo. so.e examples to.illustrate the efficiency and accuracy o. the metho.. The results fro. this metho. are co.pared with the exact so.utio.s.

关键词： DTM Differential Equatio. Bo.ndary Value Pro.lems Numerical Metho.s