检索结果-南通市图书馆

Phy.icoche.ical Characte.istics of Wate. Sample. Colle.te. from Rive. Sok.to, Northwe.te.n Nige.ia

Atmosphe.ic and Climate.Scie.ce. 2015年第3期5卷 194-199页

作者： M. I. O. Raji y. k. e. ibrahim B. A. Ty.le. J. O. e.inmidu De.artme.t of Pharmace.tics and Pharmace.tical Microbiology Usmanu Danfodiyo University Sokoto Nigeria De.artme.t of Pharmace.tics and Pharmace.tical Microbiology Ahmadu Bello University Zaria Nigeria

Phy.icoche.ical parame.e.s of surface.wate. colle.te. from six diffe.e.t points (P1 to P6) on Rive. Sok.to we.e.analy.e. during January.(Dry.Se.son) and August (Rainy.Se.son), 2014 to de.e.mine.its wate. quality.using standard me.hods. The.highe.t te.pe.ature.of 25.6°C was re.orde. by.P1 in dry.se.son while.P5 re.orde. the.highe.t value.of 29.2°C in rainy.se.son. All the.wate. sample. we.e.alk.line.in dry.se.son with the.highe.t pH value.of 8.50 in P5 and the.le.st value.of 8.02 in P6 whe.e.s in rainy.se.son, P1, P2 and P3 we.e.slightly.acidic while.P5 and P6 we.e.slightly.ne.tral and P4 alk.line. The.highe.t value. of 510 μS/cm and 850.3 mg/l we.e.re.orde. from P4 for e.e.trical conductance.and hardne.s re.pe.tive.y.in the.rainy.se.son whe.e.s in dry.se.son, P5 and P4 had the.highe.t value. of 321 μS/cm and 282.8 mg/l re.pe.tive.y. The.highe.t DO and BOD le.e.s in dry.se.son we.e.1.7 mg/l and 0.7 mg/l re.pe.tive.y.in P1 and the.le.st value. we.e.0.7 mg/l and 0.2 mg/l re.pe.tive.y.in P5. But in the.rainy.se.son, P6 re.orde. the.highe.t DO value.of 0.1 mg/l while.P2 and P5 re.orde. the.le.st value.of 0.07 mg/l. For BOD, P5 had the.highe.t value.(2.13 mg/l) while.P3 had the.le.st value.(0.20 mg/l). For COD, the.highe.t value.(230 mg/l) was found in P4 and P6 and the.le.st value.(30 mg/l) was found in P1 in dry.se.son while.in the.rainy.se.son, P2 had the.highe.t COD value.(1008 mg/l) and P4 had the.le.st value.of 32 mg/l. TDS and TSS value. ge.e.ally.we.e.highe. in the.rainy.se.son than in the.dry.se.son due.to highe. amount of floating particle. in the.rainy.se.son. While.P1 and P6 re.orde. the.highe.t value. (800 mg/l and 700 mg/l re.pe.tive.y. in the.rainy.se.son, P4 re.orde. the.le.st value.of 100 mg/l in both se.sons. The.highe.t Chloride.le.e. was found in P4 in the.dry.(100 mg/l) and rainy.(180 mg/l) se.sons with the.le.st le.e. in P2 (35 mg/l) in dry.se.son and in P1 and P2 with the.le.st le.e. of 60 mg/l in the.rainy.se.son. The.highe.t conce.tration

关键词： Rive. Sok.to Se.sonal Variation Dry Se.son Rainy Se.son e.e.e.tal Constitue.ts Conce.tration

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

引用

Inte.national Journal of Mine.als,Me.allurgy.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 Bak.r A. Bahador Faculty.of Me.hanical e.gine.ring Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia Faculty.of Information Scie.ce. and e.gine.ring Management & Science University Shah Alam Selangor Malaysia

Ti–51at%Ni shape.me.ory.alloy.(SMAs) we.e.succe.sfully.produce. via a powde. me.allurgy.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.tigate. 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 strongly.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.mograms,multi-transformation pe.k. we.e.obse.ve. during he.ting,whe.e.s a single.pe.k.was obse.ve. during cooling;the.e.pe.k. corre.pond to the.pre.e.ce.of the.β2,R,and β19′ *** maximum stre.gth 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 nick.l alloy. shape me.ory e.fe.t powde. me.allurgy (PM) microwave he.ting sinte.ing microstructure me.hanical prope.tie.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ge.logy.and ge.che.istry.of the.granitic rock. and associate. dy.e.,e.st Gabal Nuqra,South e.ste.n De.e.t,e.y.t

引用

Chine.e.Journal Of Ge.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.granitic stock.and associate. dy.e. is locate. to the.e.st Gabal Nuqra at the.e.tre.e.we.te.n part of Wadi Natash,South e.ste.n De.e.t,*** e.amine. granite. are.classifie. as alk.li-fe.dspar granite. and mainly.consist of quartz,potash fe.dspars,plagioclase.,and ***,zircon,apatite.and allanite.are.acce.sorie. re.re.e.ting the.source.of y.U,Th and Re.s in the.e.*** granite. are.characte.ize. by.high k.O,Na2O and Zn conte.ts and Rb/Sr ***,the.1}are.highly.e.riche. in high fie.d stre.gth 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 light rare.e.rth e.e.e.ts(LRe.,141×10-6) conce.trations and strongly.de.le.e. in Ca,Mg,Sr and e. *** fe.ture. sugge.t that the.1}are.similar to A-ty.e.granite.(ty.e.2).The.rhy.lite.dy.e. and granite. have.similar ge.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 trachy.acite. show slightly.fractionate. patte.n with no *** is sugge.te. that the.trachy.acite. we.e.ge.e.ate. by.small de.re. of partial-me.ting de.p-se.te. basic *** liquid,whe. subje.te. to fractional cry.tallization involving se.aration of plagioclase. as re.idue.ge.e.ate. the.alk.li-fe.dspar *** furthe. fractional cry.tallization gave.rise.to the.alk.li *** igne.us rock.suite.originate. from me.aluminous to alk.line.trachy.ic magma,and was de.e.ope. in a within-plate.te.tonic *** e.te.sion cause. by.NW-Se.right-late.al she.r in are. le. to the.e.place.e.t of the.alk.li-fe.dspar *** late. e.trusion of the.alk.li rhy.lite.and trachy.acite.dy.e. 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

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Flow computations past a triangular boattaile. proje.tile

引用

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

作者： e.e.awwad A.ibrahim A.e.shabk.a 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 triangular boattaile. *** study.shows that the.e.is a single.normal shock.wave.impinge. 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.wak. re.ion be.ind the.triangular base.and the.re.r stagnation 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.triangular boattaile. proje.tile.since.a lowe. ove.turning mome.t is incurre..

关键词： Triangular base Boattaile. proje.tile Drag re.uction Range.e.te.sion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

An e.pansion The.re. for an e.ge.value.Proble. of an Arbitrary.Multiply.Conne.te. Domain with an e.ge.parame.e. in a Ge.e.al Ty.e.of Boundary.Conditions

引用

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

作者： e. M. e. Zay.d 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 right- de.inite.e.ge.value.proble. with an e.ge.value.parame.e. λ which is containe. in the.Schrodinge. partial diffe.e.tial,e.uation and in a ge.e.al ty.e.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.ge.function e.pansion the.re..

关键词： e.ge.value.proble. Multiply.conne.te. domain e.ge.function e.pansion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Approximate.analy.ical solutions and me.n e.e.gie. of stationary.Schrodinge. e.uation for ge.e.al mole.ular pote.tial

引用

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

作者： e.0}be.e.S Rawe. B O ibrahim N De.artme.t of Phy.ics 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 Phy.ics Faculty of ScienceP M B 1069MaiduguriBorno StateNigeria

The.Schrodinge. e.uation is solve. with ge.e.al mole.ular pote.tial via the.improve. quantization *** for bound state.e.e.gy.e.ge.value.,radial e.ge.functions,me.n k.ne.ic e.e.gy.and pote.tial e.e.gy.are.obtaine. in compact *** mode.ing the.ce.trifugal te.m of the.e.fe.tive.pote.tial,a Pe.1}ris-lik. approximation sche.e.is ***,we.use.the.He.lmann–Fe.0}man the.re. to de.ive.the.re.ation for e.pe.tation *** state.e.e.gy.e.ge.value.,wave.functions and me.ne.e.gie. of Woods–Saxon pote.tial,Morse.pote.tial,Mobius square. and Tie.z–Hua oscillators are.de.uce. from the.ge.e.al mole.ular *** addition,we.use.our e.uations to compute.the.bound state.e.e.gy.e.ge.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 agre.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 k.ne.ic e.e.gy.for the.sy.te. 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 k.ne.ic e.e.gy.incre.se. line.rly.with vibrational quantum numbe. incre.sing.

关键词： ge.e.al mole.ular pote.tial Schrodinge. e.uation improve. quantization rule

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

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

引用

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

作者： e.M.e.Zay.d 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.ploy.d to construct the.e.act solutions involving parame.e.s of nonline.r e.olution e.uations via the.(1+1)-dime.sional modifie. k.V e.uation,and the.(1+1)-dime.sional re.ction-diffusion *** the.e.parame.e.s are.tak.n 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 phy.ics.

关键词： e.uation. e.act e.uation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Sy.the.is of Antipy.ine.De.ivative. De.ive. from Dime.one

引用

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. k.. 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-aminoantipy.ine.afforde. 2,3-dime.hy.-4-[2-（5,5-dime.hy.- 2,6-dioxocy.lohe.-2-y.ide.d）-hy.razino]-5-oxo-1-phe.y.py.azoline.（3）. Re.ction of 3 with e.ce.s phe.y.hy.razine.gave.the.mixe. trishy.razone.de.ivative.4. Tre.tme.t of 3 with hy.roxy.amine.produce. the.bisoxime.5 which upon de.y.rative.cy.lization with ace.ic anhy.ride.gave.the.corrsponding te.rahy.robe.zo[d][1,2,3]triazole.de.ivative.7. A one.pot sy.the.is of 7 was done.by.re.cting 3 with hy.roxy.amine.hy.rochloride.in py.idine. followe. by.he.tme.t with ace.ic anhy.ride.

关键词： dime.one antipy.ine 1,2,3-triazole phe.y.hy.razone

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

e.act Solutions of k.lmogorov-Pe.rovsk.i-Pisk.nov e.uation Using the.Modifie. Simple.e.uation Me.hod

引用

Acta Mathe.aticae.Applicatae.Sinica 2014年第3期30卷 749-754页

作者： e.M.e.Zay.d S.A.Hoda ibrahim Mathe.atics De.artme.t Faculty of ScienceZagazig University

The.modifie. simple.e.uation me.hod is e.ploy.d to find the.e.act solutions of the.nonline.r k.lmogorov-Pe.rovsk.i-Pisk.nov （k.P） e.uation. Whe. ce.tain parame.e.s of the.e.uations are.chose. to be.spe.ial value., the.solitary.wave.solutions are.de.ive. from the.e.act solutions. It is shown that the.modifie. simple.e.uation me.hod provide. an e.fe.tive.and powe.ful mathe.atical tool for solving nonline.r e.olution e.uations in mathe.atical phy.ics.

关键词： modifie. simple.e.uation me.hod k.lmogorov-Pe.rovsk.i-Pisk.nov e.uation e.act solutions solitary.wave.solutions

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Asse.sme.t of the.Quality.of Composite.Re.in Re.torations

引用

Ope. Journal of Stomatology 2015年第2期5卷 19-25页

作者： Z. A. Ijaimi N. H. Abu-Bak. y. e. ibrahim Conse.vative.De.tistry.Division Department of Oral Rehabilitation Faculty of Dentistry University of Khartoum Khartoum Sudan Conse.vative.De.tistry.Division Department of Oral Rehabilitation Faculty of Dentistry University of Khartoum Khartoum Sudan De.artme.t Clinical De.tal Scie.ce College of Dentistry Princess Nourah Bint Abdelrahman University Riyadh KSA

Purpose. To e.aluate.the.quality.of the.composite.re.torations. Mate.ial and Me.hods: A total of 246 composite.re.torations in 125 patie.ts atte.ding the.Conse.vative.De.tistry.Clinics at the.Faculty.of De.tistry. Unive.sity.of k.artoum we.e.e.amine.. Both ante.ior and poste.ior composite.re.torations we.e.include.. California De.tal Association Quality.e.aluation Sy.te. was use. for the.e.aluation. Re.ults: Fifty.two pe.ce.t of all re.torations we.e.found to be.satisfactory. while.the.re.aining 48% we.e.not satisfactory. With re.ard to surface.and colour crite.ia, colour mismatch within the.range.(34.8%) and slight surface.roughne.s (26.6%) we.e.the.most common de.e.ts. The.most fre.ue.t de.e.ts of the.anatomical form we.e.re.toration ove.hang (26.8%). The.majority.of the.re.torations above.4 y.ars old we.e.of unacce.table.anatomical form (66.7%), and the.r marginal inte.rity.was le.s acce.table.than more.re.e.t re.torations (46.7%). Conclusions: Forty.e.ght pe.ce.t of the.e.amine. composite.re.torations ne.de. to be.re.lace., and the.unacce.table.anatomic form was the.main cause.of failure.of composite.re.torations.

关键词： Composite Re.in Re.torations Marginal De.e.t Ove.hang Re.toration Colour Mismatch

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：