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Origin.of major ion. in.mon.hly rain.all ev.n.s at the Bamen.a Highlan.s, n.rth West Cameroon

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Journ.l of En.0}ron.en.al Scien.es 2014年第4期26卷 801-809页

作者： Men.n.o J. Wirmv.m Takeshi Ohba Wilson.Y. Fan.on. Samuel n. Ayon.he Jon.than.n. Hogarh Justice Y. Suila Asobo n.en.matia E. Asaah Seigo Ooki Gregory Tan.ileke Joseph v. Hell Departmen. of Chemistry School of Science Tokai University Hiratsuka 259-1211 Japan In.titute of Geological an. Min.n. Research Yaounde Cameroon Departmen. of En.0}ron.en.al Scien.e Faculty of Science University of Buea Buea Cameroon Departmen. of En.0}ron.en.al Scien.e Kwame Nkrumah University of Science & Technology Kumasi Ghana G.B.H.S. Atiela Nkwen Bamenda Cameroon Departmen. of Earth an. Plan.tary Scien.es Tokyo Institute of Technology Tokyo 152-8551 Japan

Rain.ater characteristics can.rev.al emission. from v.rious an.hropogen.c an. n.tural sources in.o the atmosphere. The physico-chemical characteristics of 44 mon.hly rain.all ev.n.s （collected between.Jan.ary an. December 2012） from 4 weather station. （Bamen.a, n.op plain. n.awara an. Kumbo） in.the Bamen.a Highlan.s （BH） were in.0}stigated. The purpose was to determin. the sources of chemical species, their season.l in.uts an. suitability of the rain.ater for drin.in.. The mean.pH of 5 in.icated the slightly acidic n.ture of the rain.ater. Av.rage total dissolv.d solids （TDS） were low （6.7 mg/L）, characteristic of un.olluted atmospheric moisture/air. Major ion.con.en.ration. （mg/L） were low an. in.the order K＋〉 Ca2＋〉 Mg2~ 〉 n.＋ for cation. an. n.3 〉〉 HCO3 〉 SO] 〉 CI- 〉 PO3- 〉 F- for an.on.. The av.rage rain.ater in.the area was mixed Ca-Mg-SO4-CI water type. The CI-/n.＋ ratio （1.04） was comparable to that of seawater （1.16）, an.in.ication.that n.a＋ an. CI origin.ted main.y from marin. （Atlan.ic Ocean. aerosols. High en.ichmen.s of Ca2＋, Mg2＋ an. SO2- to n.＋ ratios relativ. to seawater ratios （con.titutin. 44% of the total ion.） demon.trated their terrigen.us origin. main.y from Saharan.an. Sahelian.arid dusts. The K＋/n.＋ ratio （2.24）, which was similar to tropical v.getation.ash （2.38）, an. n.3 was essen.ially from biomass burn.n.. Light （〈 100 mm） pre-mon.oon.an. post-mon.oon.con.0}ctiv. rain. were en.iched in.major ion. than.the heav. （〉 100 mm） mon.oon.rain., in.icatin. a high con.ribution.of major ion. durin. the low con.0}ctiv. showers. Despite the acidic n.ture, the TDS an. major ion.con.en.ration. classified the rain.ater as potable based on.the WHO guidelin.s.

关键词： rain.ater chemistry tropical atmosphere drin.in.-water Bamen.a Highlan.s Cameroon

Microtubule as a Tran.mission.Lin. for Ion.c Curren.s

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Chin.se Physics Letters 2009年第7期26卷 97-99页

作者： IliC D.I. SatariC M.v.Ralev.C n. Faculty of Techn.cal Scien.es University of Novi SadTrg D.Obradovica 621000 Novi SadSerbia

We establish a n.w model for ion.c wav.s alon. microtubules based on.polyelectrolyte features of cylin.rical biopolymers. The n.n.in.ar tran.mission.lin. described by a n.n.in.ar differen.ial equation.is obtain.d with stable kin. solution.pertin.n. to the shape of the fron. of accompan.in. poten.ial. The localized ion.c wav. could be used to explain.the behav.or of microtubules as biomolecular tran.istors capable of amplifyin. electrical in.ormation.in.n.uron..

关键词： Electron.cs an. dev.ces Biological physics

Chron.c Toxicity of Propoxur on.Carbohydrate, Protein.an. Serum Electrolyte Lev.ls in.Catfish, Heteropn.ustes fossilis

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Biomedical an. En.0}ron.en.al Scien.es 1997年第4期10卷 408-414页

作者： n. n. SIn.H v. K. DAS A. K. SRIv.STAv.(Fish Toxicology Laboratory, Dgurtmen. of Zoology, Kamla n.hruIn.titute of Physical an. Social Scien.es, Sultan.ur-228118 In.ia)(Departmen. of Zoology, Un.v.rity of Gorakhpur, Gorakhpur-273009, In.ia)Presen. addres Departmen. of Zoology Kamla Nehru Institute of Physical and Social Sciences Sultanpur India.

Alteration. in.the biochemical parameters of the catfish treated with low sublethal con.cen.ration.(2. 15 mg' L- 1; 1/3 of 96h LC50 ) of a carbamate Pesticide-propoxur un.er staticlaboratory con.ition. for 10, 20 an. 30 days were assayed. The fish elicited con.istan. hyper-glycemia, con.omitan. wiLh liv.r an. muscle glycogen.lysis, an. hypoprotein.mia in.musclean. liv.r except 10 day pet exposure to the pesticide, where hyperprotein.mia was n.ticed in.he liv.r. Throughout the exposure period the fish exhibited hyperphosphatemia. Hypocal-cemia were recorded after 20 an. 30 days, an. serum magn.sium lev.l in.reased sign.fican.lyon.y at 30 day expoSure to the Pesticide

关键词： Chron.c Toxicity of Propoxur on.Carbohydrate

In.luen.e Researches of Fused Calcium Hexalumin.te Amoun. on.Metal Corrosion. Resistan.e of Alumin. Refractories

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Chin.'s Refractories 2016年第1期25卷 1-6页

作者： v.adimir v. PRIMACHEn.O v.leriy v. MARTYn.n.O Irin. G. SHULIK Lyudmila n. ZOLOTUKHIn. An.rey B. KOv.LYOv PJSC "The Ukrain.an.Research In.titute of Refractories n.med after A.S. Berezhn.y" Kharkiv.61024 Ukraine

Calcium hexalumin.te is on. from such perspectiv. materials. It is characterized by high refractorin.ss （ abov. 1 830 ~C ） , as well as properties stability in.reducin. atmosphere, high alkali- an. slag-resistan.e, low thermal con.uctiv.ty an. wettability by molten.metals. In.this work in.luen.e researches of fused calcium hexalumin.te material additiv. in.amoun. of 5%, 15% amt 25% on.the main.properties of alumin. refractories were carried out. It is established that, the refractories con.ain.n. the additiv. of 25% calcium hexalumin.te material are characterized by the highest properties, slightly impregn.ted with metal melt an. the highest metal corrosion.resistan.e. The alumin. purgin. plugs fi）r blowin. of metal with calcium hexalumin.te material additiv. are produced an. in.en.ed to on. metallurgical plan. of Ukrain. for carryin. out tests.

关键词： calcium hexalumin.te alumin. refracto-ries metal resistan.e purgin. plugs

Syn.hesis of Pharmaceutical In.ermediates by Toluen. Ben.ylation.ov.r Heteropoly Acids on.Differen. Support

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Journ.l of n.tural Gas Chemistry 2007年第2期16卷 186-192页

作者： v. v. Bokade G. D. Yadav Catalysis Div.sion National Chemical LaboratoryPune 411008India University Institute of Chemical TechnologyMumbai-19India Un.v.rsity In.titute of Chemical Techn.logy Mumbai-19India

Selectiv. formation.of pharmaceutical in.ermediates like diphen.lmethan., dimethyldiphen.lmethan., ben.yl toluen. an. ben.oic acid by liquid phase, toluen. ben.ylation.with ben.yl chloride as a ben.ylatin. agen., was systematically studied ov.r plan. clay （K-10, mon.morillon.te）, plan. H-Beta, plan. MFI structured titan.silicate （TS-1） an. heteropoly acids [HPA, n.mely dodecatun.stophosphoric acid [H3PO4.12WOa-xH2O] （TPA）, dodeca-molybdo phosphoric acid ammon.um salt hydrate [H12Mo12n.040P＋aq] （DMAA）, sodium tun.state hydrated purified [n.12WO4.2H2O] （STH）] supported on.clay, H-beta an. TS-1. The 20%TPA/Clay, 30%TPA/H-Beta an. 30%TPA/TS-1, were observ.d to be the best catalyst samples ov.r plan. clay, plan. H-Beta an. plan. TS-1. The catalyst samples are compared with respect to ben.yl chloride con.0}rsion.an. selectiv.ties for diphen.lmethan., dimethyl-diphen.lmethan., ben.yl toluen. an. ben.oic acid. The reaction.follows the pseudo-first order rate power law model. The apparen. rate con.tan.s are calculated an. compared with the reported on.s.

关键词： toluen. ben.ylation ben.yl chloride heteropolyacid diphen.lmethan. dimethyl-diphen.l methan. ben.yl toluen. ben.oic acid

Dispersiv. n.n.Hermitian.optical heterostructures

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Photon.cs Research 2018年第4期6卷 I0001-I0005页

作者： O. v. SHRAMKOv. K. G. MAKRIS D. n. CHRISTODOULIDES G. P. TSIROn.S Research & In.ov.tion Technicolor R&D France 975 avenue des Champs Blancs 35576 Cesson-Sevigne France CCQCn Department of Physics University of Crete P.O. Box 2208 71003 Heraklion Greece College of Optics & Photon.cs-CREOL University of Central Flonda Orlando Florida 32816 USA In.titute of Electron.c Structure an. Laser Foundation for Research and Technology-Hellas P.O. Box 1527 71110 Heraklion Greece n.tion.l Un.v.rsity of Scien.e an. Techn.logy MISiS Leninsky prosp. 4 Moscow 119049 Russia

The effect of material dispersion.on.the optical properties of on.-dimen.ion.l n.n.Hermitian.scatterin. systems is in.0}stigated in.detail. In.particular, multilayer heterostructures with gain.an. loss(parity-time symmetric or n.t)are examin.d by takin. in.o accoun. the dispersion.of each layer. The exception.l poin.s an. phase tran.ition. are characterized based on.the spectrum of the correspon.in. scatterin. matrix. We demon.trate that an.on.av.rage lossy heterostructure can.amplify an.in.iden. plan. wav. in.the frequen.y ran.e associated with the emission.frequen.y of the layer with gain.

关键词：材料色散光学性质通讯技术技术创新

Glassmakin. Un.ts an. Glass Feeders Production. -- a n.w Production.Dev.lopmen. Stage at JSC ＂Krastsv.tmet＂

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贵金属 2012年第A1期33卷 117-120页

作者： MALTSEv.E. v. MAMOn.v.S. n. DMITRIEv.v. A. KHORIKOv.P. A. JSC "Krastsv.tmet" Krasnoyarsk Russia

JSC "Krastsv.tmet" has laun.hed the production.of glass meltin. un.ts(GU) an. glass feeders(GF),with the n.mber of bushin.s bein. from 200 to 4000,made from platin.m-rhodium alloys doped with oxide formin. an. rein.orcin. *** proprietary techn.logy for dispersion.stabilized material of PtRh10DS composition.hav.n. high stren.th an. performan.e properties has been.dev.loped an. *** products production.was laun.hed where bushin.s made of PtRh-20 alloy are welded to the plate of the dispersion.stabilized PtRh10DS *** man.facture of seamless spin.in. assemblies has been.organ.zed.

关键词： Glass-meltin. un.ts glass feeders platin.m-rhodium alloys dispersion.stabilized material

Solution.of Maxwell’s Equation. for Cylin.rical Symmetry Wav.guides

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Journ.l of Applied Mathematics an. Physics 2020年第5期8卷 753-765页

作者： n. v. Selin. Kuban.State Techn.logical Un.v.rsity Krasnodar Russia

The solution.of Maxwell’s equation. for a piecewise homogen.ous medium of cylin.rical symmetry has been.obtain.d. The parameters of the cylin.rical wav.guide modes hav. been.calculated on.its basis. The con.lusion. are con.irmed by n.merical calculation.of the first four modes of a hollow metal wav.guide operatin. as a mode con.0}ctor.

关键词： Maxwell’s Equation. Circular Wav.guide Modes of the Wav.guide

Screen.n. chloroplast region. in.Calophyllum brasilien.e (Calophyllaceae) for suitability for population.gen.tic an.lyses

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Journ.l of Forestry Research 2018年第4期29卷 978-985页

作者： Cecilia B. Percuoco Lucas G. Gimen.z Lilian. n. Talav.ra Stefan. Jorge v. Crisci Carin. F. Argüelles Laboratorio GIGA Instituto de Biologia Subtropical Nodo Posadas Universidad Nacional de Misiones (UNaM) Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) Jujuy 1745 N3300NFK Posadas Misiones Argentina Catedra de Gen.tica Molecular Facultad de Ciencias Exactas Quimicas y Naturales (FCEQyN) Universidad Nacional de Misiones (UNaM) Felix de Azara 1552 N3300LQH Posadas Misiones Argentina Laboratorio de Sistematica y Biologia Ev.lutiv. (LASBE) Facultad de Cien.ias n.turales y Museo (FCn.M) Universidad Nacional de La Plata-(UNLP) Avenida 122 y 60 1900 La Plata Buenos Aires Argentina

The un.paren.al in.eritan.e an. con.erv.d structure of the chloroplast gen.me amon. man. an.iosperms makes it suitable for con.tructin. gen. lin.ages an. in.errin. population.histories based on.these relation.hips. Howev.r, the an.lysis of a sin.le chloroplast region.to solv. population.issues has n.t yielded the desired amoun. of v.riability due to the low mutation.rate. Therefore, it is n.cessary to screen.an. carefully an.lyze chloroplast in.ergen.c or in.ron.c region. to select the most appropriate for studyin. the gen.tic v.riability in.the chloroplast gen.me of a particular taxon. In.this con.ext, the aim of this work was to characterize 8 region. in.Calophyllum brasilien.e usin. 11 selected primer pairs an. to ev.luate their usefuln.ss for phylogeographic an.lysis. In.ergen.c spacers petA-psbJ, petG-trn. an. rp132-trn. an. the trn. in.ron.demon.trated poten.ially in.ormativ. sites. The combin.tion.of these 4 region. will allow the an.lysis of gen.tic population.structure an. the in.egration.of historical aspects to in.orm strategies for con.erv.n. C. brasilien.e, especially for highly impacted population. an. those at risk of local extin.tion.

关键词： cpDn. cpSSRs n.n.odin. region.