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Pre.ale.ce.of Org.nophosphorous Pe.ticide.Re.idue. in Pumpkin, Spinach and Sorre. Le.ve. g.own in Akwang., Nasarawa State. Nig.0}ia

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Journal of e.vironme.tal Prote.tion 2018年第5期9卷 516-524页

作者： e. g. ibrahim N. Yakubu L. Nnamonu J. M. Yakubu De.t. of Pure.and Applie. Che.istry Plateau State University Bokkos Jos Plateau Stae Nigeria De.onstration Se.ondary School College of Education Akwanga Nasarawa State Nigeria De.t. of Che.istry and Ag.oche.ical Te.hnolog. University of Agriculture Ma-kurdi Benue State Nigeria De.t. of Microbiolog. Federal University Wukari Wukari Nigeria

Thre. g.e.n le.fy ve.e.able.sample. of pumpkin le.ve., spinach le.ve., and sorre. le.ve. we.e.colle.te. from thre. diffe.e.t locations in a farm in Akwang. and we.e.te.te. for the.pre.e.ce.of org.nophosphorus (OP) compounds. The.conce.trations of all the.pe.ticide.re.idue. in the.ve.e.able.sample. we.e.de.e.mine. using.g.s chromatog.aphy with mass spe.trome.ry (g.-MS). The.org.nophosphorus pe.ticide. de.e.te. include.carbaryl (0.052 mg.kg. in pumpkin, this is be.ow e.rope.n maximum re.idue. limit (e. MRL) of 0.1 mg.kg. Dime.hoate.was found in pumpkin (0.165 mg.kg., spinach (0.103 mg.kg. and sorre. (0.250 mg.kg. all above.the.e. MRL of 0.05 mg.kg. Dichlofe.thion was de.e.te. in pumpkin (0.308 mg.kg., pirimiphos me.hyl was de.e.te. in pumpkin and spinach (0.428 mg.kg.and 0.149 mg.kg.re.pe.tive.y), all the.e.we.e.be.ow the.e. MRL of 0.5 mg.kg. Chlorpyrifos was found in spinach (0.230 mg.kg. and sorre. (0.192 mg.kg. only spinach was above.the.e. MRL of 0.2 mg.kg. The.pe.ticide.re.idue.Bromophose.hyl was de.e.te. in all ve.e.able., pumpkin le.ve. (0.501 mg.kg., sorre. (1.571 mg.kg. and spinach (7.981 mg.kg. all above.the.e. MRL of 0.5 mg.kg. The.re.aining.pe.ticide. de.e.te. we.e.all be.ow the.r e. MRL value.the.e.are.e.hion found in spinach (0.167 mg.kg., Me.hyl Parathion in spinach (0.103 mg.kg. and sorre. (0.335 mg.kg.. The.le.e.s of some.of the.org.nophosphorus pe.ticide.re.idue. found in ve.e.able. we.e.above.the.maximum re.idue.limits (MRLs) se. by the.e.rope.n Union. This calls for laws to re.ulate.the.use.and circulation of such che.icals. Base. on the.obse.vation made.in the.e.studie., it is propose. that more.e.te.sive.monitoring.inve.tig.tion cove.ing.all ve.e.able. part in Akwang. Nasarawa state.be.carrie. out to find the.e.act position of pe.ticide.re.idue..

关键词： Akwang. Pe.ticide Re.idue. Org.nophosphorous Maximum Re.idue Limit

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De.e.mination of Org.nochlorine.Pe.ticide.Re.idue. in Pumpkin, Spinach and Sorre. Le.ve. g.own in Akwang., Nasarawa State. Nig.0}ia

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Journal of e.vironme.tal Prote.tion 2018年第5期9卷 508-515页

作者： e. g. ibrahim N. Yakubu L. Nnamonu J. M. Yakubu De.t. of Pure.and Applie. Che.istry Plateau State University Bokkos Plateau Stae Nigeria De.onstration Se.ondary School College of Education Akwanga Nasarawa State Nigeria De.t. of Che.istry and Ag.oche.ical Te.hnolog. University of Agriculture Ma-kurdi Benue State Nigeria De.t. of Microbiolog. Federal University Wukari Wukari Nigeria

Thre. g.e.n le.fy ve.e.able.sample. of pumpkin le.ve., spinach le.ve., and sorre. le.ve. we.e.colle.te. from a farm in Akwang. and we.e.te.te. for the.pre.e.ce.of re.idue. of org.nochlorine.pe.ticide.. The.conce.trations of all the.pe.ticide.re.idue. in the.ve.e.able.sample. we.e.de.e.mine. using.g./MS. Among.the.org.nochlorine.pe.ticide.p,p’-DDT was de.e.te. in pumpkin (0.75 mg.kg., spinach (0.319 mg.kg. and sorre. (0.219 mg.kg.. θ-BHC and γ-BHC we.e.de.e.te. only in pumpkin le.ve. (0.359 mg.kg.and 0.647 mg.kg.re.pe.tive.y). Die.drin was de.e.te. in spinach and sorre. (0.124 mg.kg.and 0.053 mg.kg.re.pe.tive.y). e.drin was de.e.te. in pumpkin (0.732 mg.kg. and Aldrin in sorre. (0.095 mg.kg.. All the.e.value. we.e.above.the.maximum re.idue.limit (MRL) value.of the.pe.ticide.. e.dosulfan II was de.e.te. in sorre. (0.306 mg.kg. be.ow the.MRL. The.le.e.s of most of the.pe.ticide.re.idue. found in ve.e.able. we.e.above.the.maximum re.idue.limits (MRLs) that call for laws to re.ulate.the.use.and circulation of such che.icals. Routine.monitoring.of pe.ticide.re.idue. in this study are. is ne.e.sary for the.pre.e.tion, control and re.uction of e.vironme.tal pollution, to minimize.he.lth risks.

关键词： Akwang. Org.nochlorine Pe.ticide Re.idue. Maximum Re.idue Limit Ve.e.able.

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g.0}log. and g.0}che.istry of the.g.anitic rocks and associate. dyke.,e.st g.bal Nuqra,South e.ste.n De.e.t,e.ypt

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Chine.e.Journal Of g.0}che.istry 2012年第4期31卷 376-389页

作者： ibrahim H.ibrahim Mostafa e.Darwish Nucle.r Mate.ial Authority 530 P.O.El MaadiCairoEgypt

A cre.ce.t-shape.g.anitic stock and associate. dyke. is locate. to the.e.st g.bal Nuqra at the.e.tre.e.we.te.n part of Wadi Natash,South e.ste.n De.e.t,*** e.amine. g.anite. are.classifie. as alkali-fe.dspar g.anite. and mainly consist of quartz,potash fe.dspars,plag.oclase.,and ***,zircon,apatite.and allanite.are.acce.sorie. re.re.e.ting.the.source.of Y,U,Th and Re.s in the.e.*** g.anite. are.characte.ize. by hig. K2O,Na2O and Zn conte.ts and Rb/Sr ***,the. are.hig.ly e.riche. in hig. fie.d stre.g.h e.e.e.ts(HFSe.,e.pe.ially Zr(1529×10-6),Nb(100×10-6),Hf(91×10-6) and Y(624×10-6) and lig.t rare.e.rth e.e.e.ts(LRe.,141×10-6) conce.trations and strong.y de.le.e. in Ca,Mg.Sr and e. *** fe.ture. sug.e.t that the. are.similar to A-type.g.anite.(type.2).The.rhyolite.dyke. and g.anite. have.similar g.0}che.ical characte.istics whe.e.s the.chondrite.normalize. Re. patte.ns show a LRe. e.riche. fe.ture.with strong.ne.ative.e.-anomaly,whe.e.s the.Re. patte.n of trachydacite. show slig.tly fractionate. patte.n with no *** is sug.e.te. that the.trachydacite. we.e.g.0}e.ate. by small de.re. of partial-me.ting.de.p-se.te. basic *** liquid,whe. subje.te. to fractional crystallization involving.se.aration of plag.oclase. as re.idue.g.0}e.ate. the.alkali-fe.dspar *** furthe. fractional crystallization g.ve.rise.to the.alkali *** ig.e.us rock suite.orig.nate. from me.aluminous to alkaline.trachytic mag.a,and was de.e.ope. in a within-plate.te.tonic *** e.te.sion cause. by NW-Se.rig.t-late.al she.r in are. le. to the.e.place.e.t of the.alkali-fe.dspar *** late. e.trusion of the.alkali rhyolite.and trachydacite.dyke. was due.to cauldron subside.ce.

关键词：碱长花岗岩地球化学特征堤坝沙漠埃及轻稀土元素碱性流纹岩元素富集特征

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Microwave.sinte.ing.e.fe.ts on the.microstructure.and me.hanical prope.tie. of Ti–51at%Ni shape.me.ory alloys

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Inte.national Journal of Mine.als,Me.allurg. and Mate.ials 2017年第3期24卷 280-288页

作者： Mustafa K. ibrahim e. Hamzah Safaa N. Saud e. N. e. Abu Bakar A. Bahador Faculty of Me.hanical e.g.ne.ring Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia Faculty of Information Scie.ce. and e.g.ne.ring Management & Science University Shah Alam Selangor Malaysia

Ti–51at%Ni shape.me.ory alloys(SMAs) we.e.succe.sfully produce. via a powde. me.allurg. and microwave.sinte.ing.*** influe.ce.of sinte.ing.parame.e.s on porosity re.uction,microstructure.phase.transformation te.pe.ature.,and me.hanical prope.tie. we.e.inve.tig.te. by optical microscopy,fie.d-e.ission scanning.e.e.tron microscopy(Fe.Se.),X-ray diffraction(XRD),diffe.e.tial scanning.calorime.ry(DSC),compre.sion te.ts,and microhardne.s *** the.microwave.te.pe.ature.and holding.time.was found to strong.y affe.t the.de.sity of porosity,pre.e.ce.of pre.ipitate.,transformation te.pe.ature.,and me.hanical *** lowe.t de.sity and smalle.t pore.size.we.e.obse.ve. in the.Ti–51at%Ni sample. sinte.e. at 900°C for 5 min or at 900°C for 30 *** pre.ominant marte.site.phase. of β2 and β19′ we.e.obse.ve. in the.microstructure.of Ti–51at%Ni,and the.r e.iste.ce.varie. in accordance.with the.sinte.ing.te.pe.ature.and the.holding.*** the.DSC the.mog.ams,multi-transformation pe.ks we.e.obse.ve. during.he.ting.whe.e.s a sing.e.pe.k was obse.ve. during.cooling.the.e.pe.ks corre.pond to the.pre.e.ce.of the.β2,R,and β19′ *** maximum stre.g.h and strain among.the.Ti–51at%Ni SMAs we.e.1376 MPa and 29%,re.pe.tive.y,for the.sample.sinte.e. at 900°C for 30 min be.ause.of this sample.s minimal porosity.

关键词： titanium nicke. alloys shape me.ory e.fe.t powde. me.allurg. (PM) microwave he.ting sinte.ing microstructure me.hanical prope.tie.

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Flow computations past a triang.lar boattaile. proje.tile

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De.e.ce.Te.hnolog.（防务技术） 2020年第3期16卷 712-719页

作者： e.e.awwad A.ibrahim A.e.shabkaa A.Riad Arme. Force. Re.e.rch Ce.te.(ARC) Cairo11765Egypt Military Te.hnical Colle.e.MTC) Cairo11766Egypt

This pape. pre.e.ts a computational study of the.air flow past a triang.lar boattaile. *** study shows that the.e.is a sing.e.normal shock wave.imping.0} the.proje.tile.at transonic *** supe.sonic spe.ds,the.forme. shock wave. are.sme.re. compare. to a conical boattaile. ***,the.e.is a re.uction of the.wake.re.ion be.ind the.triang.lar base.and the.re.r stag.ation point is ne.re. to the.proje.tile.base.re.ulting.in base.drag.***,the.e.is an improve.e.t of the.stability of the.triang.lar boattaile. proje.tile.since.a lowe. ove.turning.mome.t is incurre..

关键词： Triang.lar base Boattaile. proje.tile Drag.re.uction Rang.0}e.te.sion

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An e.pansion The.re. for an e.g.0}value.Proble. of an Arbitrary Multiply Conne.te. Domain with an e.g.0}parame.e. in a g.0}e.al Type.of Boundary Conditions

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Acta Mathe.atica Sinica,e.g.ish Se.ie. 1995年第4期11卷 399-407页

作者： e. M. e. Zaye. S. F. M. ibrahim Mathe.atics De.artme.t Faculty of Scie.ce Zagazig University Zagazig Egypt Mathe.atics De.artme.t Faculty of Scie.ce Ain Shams University Heliopolis Cairo Egypt

The.obje.t of this pape. is to e.tablish an e.pansion the.re. for a re.ular rig.t- de.inite.e.g.0}value.proble. with an e.g.0}value.parame.e. λ which is containe. in the.Schroding.0} partial diffe.e.tial,e.uation and in a g.0}e.al type.of boundary conditions on the.boundary of an arbitrary multiply conne.te. bounde. domain in R^n(n≥2).We.associate.with this proble. an e.se.tially se.f-adjoint ope.ator in a suitably de.ine. Hilbe.t space.and the. we.de.e.op an associate. e.g.0}function e.pansion the.re..

关键词： e.g.0}value.proble. Multiply conne.te. domain e.g.0}function e.pansion

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Approximate.analytical solutions and me.n e.e.g.e. of stationary Schroding.0} e.uation for g.0}e.al mole.ular pote.tial

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Chine.e.Physics B 2021年第7期30卷 116-131页

作者： e.ube.e.S Rawe. B O ibrahim N De.artme.t of Physics School of Physical SciencesModibbo Adama University of TechnologyP M B 2076 YolaAdamawa StateNigeria Dire.torate.of Basic and Re.e.ial Studie. Abubakar Tafawa Balewa University(ATBU)P M B 750001BauchiBauchi StateNigeria De.artme.t of Physics Faculty of ScienceP M B 1069MaiduguriBorno StateNigeria

The.Schroding.0} e.uation is solve. with g.0}e.al mole.ular pote.tial via the.improve. quantization *** for bound state.e.e.g. e.g.0}value.,radial e.g.0}functions,me.n kine.ic e.e.g.,and pote.tial e.e.g. are.obtaine. in compact *** mode.ing.the.ce.trifug.l te.m of the.e.fe.tive.pote.tial,a Pe.e.is-like.approximation sche.e.is ***,we.use.the.He.lmann–Fe.nman the.re. to de.ive.the.re.ation for e.pe.tation *** state.e.e.g. e.g.0}value.,wave.functions and me.ne.e.g.e. of Woods–Saxon pote.tial,Morse.pote.tial,Mobius square. and Tie.z–Hua oscillators are.de.uce. from the.g.0}e.al mole.ular *** addition,we.use.our e.uations to compute.the.bound state.e.e.g. e.g.0}value. and e.pe.tation value. for four diatomic mole.ule. viz.H_(2),CO,HF,and O_(2).Re.ults obtaine. are.in pe.fe.t ag.e.me.t with the.data available.from the.lite.ature.for the.pote.tials and *** also show that as the.vibrational quantum numbe. incre.se.,the.me.n kine.ic e.e.g. for the.syste. in a Tie.z–Hua pote.tial incre.se. slowly to a thre.hold value.and the. *** in a Morse.pote.tial,the.me.n kine.ic e.e.g. incre.se. line.rly with vibrational quantum numbe. incre.sing.

关键词： g.0}e.al mole.ular pote.tial Schroding.0} e.uation improve. quantization rule

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He.vy Me.als Conte.ts of Municipal Solid Waste.Dumpsite. in Potiskum, Yobe.State.Nig.0}ia

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Journal of e.vironme.tal Prote.tion 2020年第9期11卷 709-717页

作者： g. D. ibrahim e. O. Nwaichi g. O. Abu Ce.tre.for Occupational He.lth Safe.y and e.vironme.t University of Port Harcourt Port Harcourt Nigeria De.artme.t of Pre.iminary Studie. Umar Suleiman College of Education Gashu’a Nigeria De.artme.t of Bioche.istry Faculty of Science University of Port Harcourt Port Harcourt Rivers State Nigeria De.artme.t of Microbiolog. Faculty of Science University of Port Harcourt Port Harcourt Rivers State Nigeria

The.conce.trations of As, Cd, Cr, Cu, Ni, Pb, Fe.and Zn in se.e.te. dumpsite. in Potiskum we.e.de.e.mine. with Buck Scie.tific 210Vg. Atomic Absorption Spe.trome.e. (AAS) AVg.210. One.way ANOVA was de.loye. at p e.e. of sig.ificance.for obtaine. triplicate.value.. It was found that the.conce.tration (mg.27}kg.sup>-1) of studie. he.vy me.als in Potiskum dumpsite. rang.0} from 0.108 ± 0.02 - 262.536 ± 0.68 with patte.n of accumulation Pb (262.536 ± 0.02) > Zn (183.369 ± 0.58) > Fe.(159.453 ± 0.50) > Cu (111.382 ± 0.62) > Cr (43.523 ± 0.36) > Ni (6.419 ± 0.26) > Cd (0.679 ± 0.01) > As (0.108 ± 0.02) mg.27}kg.sup>-1. The.conce.trations of As, Cr, Ni, Fe.and Zn fe.l be.ow the.WHO standards while.those.of Pb, Cd and Cu we.e.above.se. limits by WHO. Hig. acidity corre.ponds marke.ly with hig. le.e.s of Cd, Cu, Cr and Zn and re.uire. urg.0}t atte.tion as this tre.d is capable.of g.oundwate. contamination that will cause.public he.lth conce.n in affe.te. are.s.

关键词： He.vy Me.als Conce.tration Uptake.Patte.n Dumpsite. Municipal Solid Waste.

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e.act Solutions of Nonline.r e.olution e.uations in Mathe.atical Physics Using.the.Modifie. Simple.e.uation Me.hod

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Chine.e.Physics Le.te.s 2012年第6期29卷 1-4页

作者： e.M.e.Zaye. S.A.Hoda ibrahim De.artme.t of Mathe.atics Faculty of ScienceZagazig UniversityP.O.Box 44519ZagazigEgypt

The.modifie. simple.e.uation me.hod is e.ploye. to construct the.e.act solutions involving.parame.e.s of nonline.r e.olution e.uations via the.(1+1)-dime.sional modifie. KdV e.uation,and the.(1+1)-dime.sional re.ction-diffusion *** the.e.parame.e.s are.take. to be.spe.ial value.,the.solitary wave.solutions are.de.ive. from the.e.act *** is shown that the.propose. me.hod provide. a more.powe.ful mathe.atical tool for solving.nonline.r e.olution e.uations in mathe.atical physics.

关键词： e.uation. e.act e.uation

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Synthe.is of Antipyrine.De.ivative. De.ive. from Dime.one

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Chine.e.Journal of Che.istry 2007年第4期25卷 570-573页

作者： e.ASHRY e. S. H. AWAD L. F. ibrahim e. I. BDe.WY O. Kh. Che.istry De.artme.t Faculty of Science Alexandria University Alexandria Egypt Sue. Canne. Unive.sity lsmailia Egypt

Coupling.of dime.one.with the.diazonium salt of 4-aminoantipyrine.afforde. 2,3-dime.hyl-4-[2-（5,5-dime.hyl- 2,6-dioxocyclohe.-2-ylide.d）-hydrazino]-5-oxo-1-phe.ylpyrazoline.（3）. Re.ction of 3 with e.ce.s phe.ylhydrazine.g.ve.the.mixe. trishydrazone.de.ivative.4. Tre.tme.t of 3 with hydroxylamine.produce. the.bisoxime.5 which upon de.ydrative.cyclization with ace.ic anhydride.g.ve.the.corrsponding.te.rahydrobe.zo[d][1,2,3]triazole.de.ivative.7. A one.pot synthe.is of 7 was done.by re.cting.3 with hydroxylamine.hydrochloride.in pyridine. followe. by he.tme.t with ace.ic anhydride.

关键词： dime.one antipyrine 1,2,3-triazole phe.ylhydrazone

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