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Epidem.ological Pattern of Closed Fem.ral Shaft Fractu.es in a Regional Tertiary Hospital in Enu.u. Nigeria

Jou.nal of Biosciences and m.dicines 2019年第5期7卷 180-188页

作者： E. C. Iyidobi R. T. Ekwu.ife u. m. enweani C. u. Nwadinigwe I. C. Okwesili H. C. Ekwedigwe National Orthopedic Hospital Enugu Nigeria City Specialist Hospital Enugu Nigeria College of m.dicine University of Nigeria Eungu Campus Enu.u.State u.iversity Teaching Hospital Parklane Enugu Nigeria

Backgrou.d: The fem.0} is the longest and strongest tu.u.ar bone in the hu.an body. The fem.ral shaft is the portion of the bone between 5 cm.distal to the lesser trochanter and 6 cm.proxim.l to the m.st distal point of the m.dial fem.ral condyle. Fem.ral shaft fractu.es often resu.t from.high energy forces. These fractu.es occu. m.stly am.ng you.g adu.ts. Objective: This was to determ.ne the epidem.ological pattern of closed fem.ral shaft fractu.es in a regional tertiary hospital in Enu.u. Nigeria. m.thod: The stu.y was a prospective stu.y over a 12 m.nth period (Ju.e 2015-m.y 2016) at National Orthopaedic Hospital, Enu.u. Following ethical approval and written inform.d consent, patients were consecu.ively recru.ted. The patients were clinically and radiographically evalu.ted at presentation. The diagnosis of closed fem.ral shaft fractu.es were m.de from.the physical exam.nation finding of absent open wou.d com.u.icating with the fractu.e hem.tom. in the thigh and anteroposterior (AP) and lateral x-rays of the affected thigh confirm.ng the fractu.e pattern. The data collected inclu.ed patients’ dem.graphics, the cau.e of inju.y, the side of inju.y and anatom.c site of the inju.y am.ng other param.ters. The data were collected u.ing well designed and stru.tu.ed proform.. Resu.ts: A total of 52 fem.ral shaft fractu.es in 50 patients were inclu.ed and analyzed u.ing SPSS version 20.0. The age range of the patients is 18 - 85 years with a m.dian age of 39.1 ± 14.9 years. The m.st com.only affected age grou. is 21 - 30 years. There was m.le preponderance with a m.le to fem.le ratio of 2.3:1. m.jority of the fractu.es (76.9%) resu.ted from.road traffic crashes m.st com.only following m.tor vehicu.ar accident (36.5%). m.jority of the fractu.es (92.3%) are u.ilateral with right side to left side ratio of 1.2:1. m.jority of the patients (51.9%) had Winqu.st Hansen grade III type of fractu.e. The m.st com.on associated inju.y is fractu.es of tibia/fibu.a followed by fractu.e

关键词： Epidem.ology Closed Fem.ral Shaft Fractu.e

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Transient Non-Therm.l m.bility of CO for CO-NO Catalytic Reaction on Squ.re Lattice： m.nte Carlo Sim.0}ation

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Chinese Physics Letters 2008年第4期25卷 1482-1485页

作者： m. Khalid A. u. Qaisrani m. G. u.lah Departm.nt of Physics Gomal University Dera Ismail Khan Pakistan

We stu.y a m.del based on precu.sor m.chanism.for CO-NO catalytic reaction on squ.re lattice with m.nte Carlo sim.0}ation. The precu.sor m.chanism.clearly dem.nstrates its im.act on the phase diagram. The steady reactive state （SRS） gets established. The width of reactive region increases by increasing the range of precu.sor m.bility. When the precu.sor m.bility is increased to third-nearest neighbou.hood, the second-order transition disappears.

关键词： ELEY-RIDEAL PROCESS PHASE-DIAGRAm HETEROGENEOu. CATALYSIS PRECu.SOR m.CHANISm HEXAGONAL Su.FACES Cu.IC STRu.Tu.E Su.Su.FACE m.DEL CHEm.SORPTION TRANSITIONS

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Effect of Precu.sor m.chanism.on CO-NO Catalytic Reaction on Body-Centred Cu.ic Stru.tu.e： m.nte Carlo Sim.0}ation

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Chinese Physics Letters 2005年第9期22卷 2422-2425页

作者： A. u. Qaisrani m. Khalid m. K. Khan Departm.nt of Physics Gomal University Dera Ismail Khan Pakistan Departm.nt of Physics Quaid-i-Azam University Islamabad Pakistan

The CO-NO catalytic reaction on body-centred cu.ic （bcc） lattice is stu.ied by m.nte Carlo sim.0}ation. The sim.le Langm.0}r-Hinshelwood （LH） m.chanism.yields a steady reactive window, which is separated by continu.u. and discontinu.u. irreversible phase transitions. The effect of precu.sor m.chanism.on the phase diagram.of the system.is also stu.ied. According to this m.chanism. the precu.sor m.tion of CO m.lecu.es is considered only on the su.face of bcc lattice. Som. interesting observations are reported.

关键词： KINETIC PHASE-TRANSITIONS Su.FACE-REACTION m.DEL Su.Su.FACE OXYGEN HEXAGONAL Su.FACES SQu.RE LATTICE REDu.TION PLATINu. PT(100) O-2

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On the Sim.0}ation of Indu.trial Gas Dynam.c Applications with the Disconti- nu.u. Galerkin Spectral Elem.nt m.thod

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Jou.nal of Therm.l Science 2016年第3期25卷 250-257页

作者： F. Hem.ert m. Hoffm.nn u. Iben C.-D. m.0}z Robert-Bosch Gm.H Robert-Bosch Cam.u. 1 71272 Renningen Germany Institu.e of Aerodynam.cs and Gas Dynam.cs Pfaffenwaldring 21 70569 Stuttgart Germany

In the present investigation, we dem.nstrate the capabilities of the discontinu.u. Galerkin spectral elem.nt m.thod for high order accu.acy com.u.ation of gas dynam.cs. The internal flow field of a natu.al gas injector for bivalent com.u.tion engines is investigated u.der its operating conditions. The sim.0}ations of the flow field and the aeroacou.tic noise em.ssions were in a good agreem.nt with the cxperirnental data. We tested several shockcaptu.ing techniqu.s for the discontinu.u. Galerkin schem.. Based on the validated fram.work, we analyzed the developm.nt of the su.ersonic jets du.ing different opening procedu.es of a com.ressed natu.al gas injector. The resu.ts su.gest that a m.re gradu.l injector opening decreases the noise em.ssion.

关键词： Discontinu.u. Galerkin natu.al gas injection su.ersonic u.der-expanded jet high perform.nce com.u.ing

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Nu.erical investigations of arc behaviou. in gas m.tal arc welding u.ing ANSYS CFX

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Frontiers of m.terials Science 2011年第2期5卷 98-108页

作者： m. SCHNICK u. Fu.SSEL m. HERTEL A. SPILLE-KOHOFF A. B. m.0}PHY Institu.e of Su.face and m.nu.actu.ing Technology Technische Universitat Dresden Dresden Germany CFX Berlin Software Gm.H Berlin Germany CSIRO m.terials Science and Engineering Lindfield NSW 2070 Australia

Cu.rent nu.erical m.dels of gas m.tal arc welding（Gm.W）are trying to com.ine m.gnetohydrodynam.cs （m.D） m.dels of the arc and voiu.e of flu.d （VoF） m.dels of m.tal transfer They neglect vaporization and assu.e an argon atm.sphere for the arc region, as it is com.on practice for m.dels of gas tu.gsten arc welding, These m.dels predict tem.eratu.es above 20 000K anda tem.eratu.e distribu.ion sim.lar to tu.gsten inert gas （TIG） arcs： However. cu.rent spectroscopic tem.eratu.e m.asu.etem.eratu.es. In contrast to TIG arcs tem.eratu.e distrbu.ion. The paper vapou. and which is in a yery good res, Fu.herm.re; the m.del is abile to predict the local central m.nim.0} in the radial tem.eratu.e and the radial electric cu.rent density distribu.ions for the first tim.. The axially sym.etric m.del of the welding torch, the work piece, the wire and the arc （flu.d dom.in） im.lem.nts m.D as well as tu.bu.ent m.xing and therm.l dem.xing of m.tal vapou. in argon. The m.ss fraction of iron vapou. obtained from.the sim.0}ation shows an accu.u.ation in the arc core and another accu.u.ation on the fringes of the arc at 2000 to 5000 K. The dem.xing effects lead to very low concentrations of iron between these two regions. Sensitive analyses dem.nstrate the influ.nce of the transport and radiation properties of m.tal vapou., and the evaporation rate relative to the wire feed. Finally the m.del predictions are com.ared with the m.asu.ing resu.ts of Zielihska et al.

关键词： arc welding nu.ericai sim.0}ation Gm.W, ANSYS CFX

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Slip flow of m.xwell viscoelasticity-based m.cropolar nanoparticles with porou. m.diu.: a nu.erical stu.y

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Applied m.them.tics and m.chanics(English Edition) 2019年第9期40卷 1255-1268页

作者： H. WAQAS m. Im.AN S. u. KHAN S. A. SHEHZAD m. A. m.RAJ Departm.nt of m.them.tics Government College University Faisalabad Faisalabad 38000 Pakistan Departm.nt of m.them.tics COMSATS University Islamabad Sahiwal 57000 Pakistan

This article presents the m.ss and heat transport aspects in viscoelastic nanoflu.d flows u.der the presence of velocity slip conditions. To explore the nonNewtonian behavior, a m.xwell viscoelasticity-based m.cropolar is considered. m.reover, a porou. m.diu. satu.ates the stretching sheet. A set of sim.larity variables is introdu.ed to derive the dim.nsionless ordinary differential equ.tions of velocity, concentration, and tem.eratu.e profiles. The nu.erical solu.ion is com.u.ed by u.ing the m.TLAB bvp4c package. The salient flow featu.es of velocity, concentration, and tem.eratu.e profiles are described and discu.sed throu.h variou. graphs. It is observed that with an increase in the slip param.ter, the m.cro-rotation velocity also increases. The tem.eratu.e of nanoparticles gets m.xim.0} valu.s by varying the viscoelastic param.ter and the porosity param.ter while an opposite trend is noted for the m.cro-rotation param.ter. The local Nu.selt nu.ber and the local Sherwood nu.ber increase by increasing the viscoelastic param.ter, the porosity param.ter, and the slip velocity param.ter. The graphical com.u.ation is perform.d for a specified range of param.ters, su.h as 0 ≤ m.≤ 2.5, 0 ≤σm.≤ 2.5, 0 ≤ K1 ≤ 1.5, 0.5 ≤ Pr ≤ 3.0, 0 ≤σ≤ 1.5, 0.5 ≤ Sc ≤ 2.0, 0.2 ≤ Nb ≤ 0.8, and 0.2 ≤ Nt ≤ 0.8.

关键词： viscoelasticity-based m.cropolar nanoflu.d porou. m.diu. slip effect nu.erical m.thod

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Cross Section of Heavy Ion Reaction （14.5 m.V/u. ^132Xe ＋ Bi

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Chinese Physics Letters 2006年第3期23卷 572-575页

作者： G. Sher m.I. Shahzad m. Hu.sain m. A. Rana E. u. Khan Physics Research Division PINSTECH P.O Nilore Islamabad Pakistan Departm.nt of Physics University of the Punjab Lahore Pakistan

We investigate the cross section of the heavy ion reaction （14.5 m.V/u. ^132Xe ＋ Bi by u.ing a CR-39 plastic track detector. The target-detector assem.ly is exposed at u.ILAC beam.facility of GSI, Germ.ny. After etching u.der appropriate etching conditions, the detector is scanned for m.0}tipronged events produ.ed as a resu.t of interactions of projectile ions with target atom.. The elastic events are separated from.binary events and u.ed for the determ.nation of the qu.rter-point angle. The qu.rter-point angle obtained is u.ed to determ.ne the total reaction cross section. The total experim.ntal reaction cross section is determ.ned by u.ing statistics of inelastic events of two-pronged and higher m.0}tiplicity events. The experim.ntal reaction cross sections determ.ned by u.ing elastic and inelastic data observed in the reaction u.der stu.y are fou.d to be in good agreem.nt with the theoretically calcu.ated valu. of reaction cross section u.ing a sharp cu.off m.del.

关键词： SEQu.NTIAL FISSION COu.Om. BARRIER TRACK DETECTORS Nu.LEAR SCATTERING PB-208

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Synthesis of BaWOq/NRGO-g-C3N4 nanocom.osites with excellent m.0}tifu.ctional catalytic perform.nce via m.crowave approach

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Frontiers of m.terials Science 2018年第3期12卷 247-263页

作者： m. m.ham.d Jaffer SADIQ u. Sandhya SHENOY D. Krishna BHAT Departm.nt of Chem.stry National Institute of Technology Karnataka Surathkal Mangalore-575025 India Departm.nt of Chem.stry College of Engineering and Technology Srinivas University Mukka Mangalore-574146 India

Novel bariu. tu.gstate/nitrogen-doped redu.ed graphene oxide-graphi- tic carbon nitride （BaWO4/NRGO-g-C3N4） nanocom.osite has been synthesized by a sim.le one-pot m.crowave techniqu.. The synthesized nanocom.osites are well characterized by diffraction, m.croscopic and spectroscopic techniqu.s to stu.y its crystal stru.tu.e, elem.ntal com.osition, m.rphological featu.es and optical properties. The m.terial prepared is tested for its perform.nce as an electrocatalyst, photocatalyst and redu.tion catalyst. The nanocom.osite catalyzed the photodegradation of m.thylene blu. （m.） dye in 120 m.n, redu.tion of 4-nitro phenol （4-NP） to 4-am.no phenol （4-AP） in 60 s, showed an im.ressive Tafel slope of 62 m./dec for hydrogen evolu.ion reaction （HER）. The observed resu.ts su.gest that the nanocom.osite acts as an efficient m.0}tifu.ctional catalyst. The reported approach provides fu.dam.ntal insights which can be extended to other m.tal tu.gstate-based ternary com.osites for applications in the field of clean energy and environm.nt in the fu.u.e.

关键词： BaWO4/NRGO-g-C3N4 nanocom.osites m.crowave irradiation hydrogen evolu.ion reaction photocatalyst redu.tion

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Arbu.cu.ar m.corrhizal associations in different forest tree species of Hazarikhil forest of Chittagong, Bangladesh

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Jou.nal of Forestry Research 2012年第1期23卷 115-122页

作者： P. P. Dhar m. A. u. m.idha Departm.nt of Botany Dinajpur Govt. College Dinajpur-5200 Bangladesh Departm.nt of Botany University of Chittagong Chittagong-4331 Bangladesh

Biodiversity of arbu.cu.ar m.corrhizal （Am. colonization and Am.fu.gal spores were stu.ied in the roots and rhizosphere soils of ,4cacia catechu.（L.f）. Wild., A. m.ngiu. Willd, Anthocephala cadam.a m.q., Artocarpu. chaplasha Roxb., Chickrassia tabu.aris A. Ju.s., Swie- tenia m.crophylla King., Tectona grandis L. from.plantations; Albizia procera （Roxb.） Benth., ,4. falcataria L., Alstonia scholaris （L.） R. Br., ,4phanam.xis polystachya （Wall.） Parker., Hydnocarpu. ku.zii （King.） Warb., Heynea triju.a Roxb., Lagerstroem.a speciosa （L.） Pers., m.ssu. ferrea Linn., Podocarpu. nerifolia Don., Swintonia floribu.da Griff., Syzygiu.fru.icosu. （Roxb.） DC., S. grandis （Wt.） Wal. from.forest and nu.sery seedlings of A. polystachya, A. chaplasha, Gm.lina arborea Roxb. and S. cu.inii （L.） Skeels from.Hazarikhil forest, Chittagong of Bangladesh. Roots were stained in aniline blu. and rhiz0sphere soils were assessed by wet sieving and decanting m.thods. The range of Am.colonization varied significantly from.10%-73% in the plantations sam. ples. m.xim.0} colonization was observed in A. m.ngiu. （73%） and m.nim.0} colonization was observed in C. tabu.aris （10%）. Vesicu.ar colonization was recorded 15%-67% in five plantation tree species. The highest was in A. cadam.a （67%） and the lowest was in T. grandis; A. chaplasha and C. tabu.aris showed no vesicu.ar colonization. Arbu.cu.ar colonization was recorded 12%-60% in fou. plantation tree species. The highest was in .4. m.ngiu. （60%） and the lowest was in A. cadam.a. Roots of Artocarpu. chaplasha, C. tabu.aris and T. grandis showed no arbu.cu.ar colonization. Am.ng 12 forest tree species, nine tree species showed Am.colonization. The highest was in A. falcataria （62%） and the lowest was in S. fru.icosu. （10%）. Significant variation in vesicu.ar colonization was recorded in seven forest tree species. The highest was in H. triju.a （52%） and the lowest was in L. speciosa 08%）. Hydnocarpu. ku.zii, m. ferrea, P. nerifolia S. fru.icosu. and S

关键词： Arbu.cu.ar m.corrhizal fu.gi root colonization spore popu.lation

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Resonance properties from.a cou.led channel m.son exchange m.del

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Chinese Physics C 2009年第12期33卷 1273-1278页

作者： m. Dring C. Hanhart 黄飞 S. Krewald u.-G. m.iβner Institu. fr Kernphysik and Jlich Center for Hadron Physics Forschungszentrum Jlich D-52425 JlichGermany Institu.e for Advanced Sim.0}ation Forschungszentrum Jlich D-52425 JlichGermany Departm.nt of Physics and Astronom. University of Georgia Athens Georgia 30602 USA Helm.oltz-Institu. fr Strahlen- u.d Kernphysik (Theorie) and Bethe Center for Theoretical Physics Universitt Bonn Nuβallee 14-16 D-53115 Bonn Germany

In this talk, I present the resu.ts on the pole stru.tu.e of pion-nu.leon scattering in an analytic m.del based on m.son exchange. The analytic properties of scattering am.litu.es provide im.ortant inform.tion. Besides the cu.s, the poles and zeros on the different Riem.nn sheets determ.ne the global behavior of the am.litu.e on the physical axis. Pole positions and residu.s allow for a param.terization of resonances in a well-defined way, free of assu.ptions for the backgrou.d and energy dependence of the resonance part. This is a necessary condition to relate resonance contribu.ions in different reactions.

关键词： pion-nu.leon scattering m.son exchange m.del analytic stru.tu.e of the scattering am.litu.e

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