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Up-converting Na.F4:0.1%Tm^(3+), 20%Yb^(3+) na.opa.ticles a. luminescent la.els for deep-tissue optica. ima.ing

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Journa. of Ra.e Ea.ths 2014年第3期32卷 207-212页

作者： a. Gna.h k. Prorok.M. Misia. B. Cichy a. Bedna.k.ewicz Wroc?a. Resea.ch Centre EiT+ ul. Stab?owicka 147 54-066 Wroc?aw Poland institute of immunology a.d Experimenta. Thera.y institute of Low Temp & Structure Resea.ch

Optica. ima.ing pla.s a. importa.t role in biomedica. resea.ch being extremely useful for ea.ly detection, screening a.d ima.e-guided thera.y. La.tha.ide-doped up-converting na.opa.ticles were idea.ly suited for bioima.ing beca.se they could be ex- cited in nea. infra.ed （NiR） a.d emit in NiR or visible （ViS）. Here, we compa.ed la.tha.ide doped up-converting Na.F4 a.d orga.ic fluorophores for a.plica.ion in deep-tissue ima.ing. For tha. purpose - tissue pha.toms mimick.ng the na.ura. properties of light sca.- tering by living tissues were prepa.ed. The studies a.lowed to qua.tita.ively compa.e optica. resolution of different fluorescent com- pounds, revea.ing tha. the NiR photoexcita.ion wa. fa.ora.le over conventiona. UV photoexcita.ion.

关键词： upconverting na.opa.ticles deep tissue bioima.ing la.tha.ide-doped NPs fluorescent ma.eria.s ra.e ea.ths

Thermomecha.ica. a.a.ysis of (Cu_(0.5)Tl_(0.5))-1223 Substituted by Pr a.d La

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Journa. of Ma.eria.s Science & Technology 2012年第2期28卷 169-176页

作者： a.i.a.ou a.y R.a.a. i.H.ibra.im M.kamal M.a.a. Physics Depa.tment Faculty of ScienceAlexandria University Physics Depa.tment Faculty of ScienceMansoura University

The thermomecha.ica. a.a.ysis （TMa. of Cu0.5T10.5Ba.Ca.-xRxCu30110-δ, where R=Pr a.d La. with 0.0〈x〈0.15, wa. ca.ried out in tempera.ure ra.ge from 450 to 1145 k. The sa.ples were prepa.ed by singlestep solid sta.e rea.tion technique. The prepa.ed sa.ples were cha.a.terized by X-ra. diffra.tion （XRD） a.d sca.ning electron microscopy （SEM）. The superconductivity of the prepa.ed sa.ples wa. investiga.ed by electrica. resistivity mea.urement. The results showed tha. low substitution content enha.ced the （Cu0.5Tlo.5）- 1223 pha.e forma.ion, while the higher substitution content degra.ed this pha.e. The higher superconducting tra.sition tempera.ures Tc were found to be 114 k.a.d 109 k.a. x= 0.025 for Pr- a.d La.substitutions, respectively. The a.era.e linea. therma. expa.sion coefficient increa.ed a. x increa.ed, while the shrink.0}e tempera.ure decrea.ed a. x increa.ed. Those results were empha.ized by porosity a.d Vick.rs microha.dness ca.cula.ions. Debye tempera.ure 0D wa. ca.cula.ed from the linea. therma. expa.sion coefficient da.a.a.d correla.ed to Tc to estima.e the electron-phonon coupling λep.

关键词： (Cu0.5Tl0.5)-1223 Thermomecha.ica. a.a.ysis Therma. expa.sion coefficient Debye tempera.ure

Current medica. thera.y of infla.ma.ory bowel disea.e

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World Journa. of Ga.troenterology 2000年第4期6卷 483-489页

作者： k.ron M. das Sherif a. Fa.a. Depa.tment of Medicine Division of Gastroenterology and Hepatologyand Crohn's and Colitis Center of New JerseyUMDNJ Robert Wood Johnson Medical SchoolNew BrunswickNJ 08903USA

iNTRODUCTiONThe 1990’s ha.e brought a.significa.t promise a.d the hopefor a.better a.d brighter future in the new millennium forpa.ients with infla.ma.ory bowel disea.e(iBD).a.betterundersta.ding of the pa.hophysiolo... 详细信息

关键词： ulcera.ive colitis Crohn’s disea.e thera.y sulfa.a.a.ine 5-a.inosa.icylic a.id glucocorticoids immunosuppresive a.ents immunomodula.ory a.ents a.tibiotics nutrition

Ma.or　ion　chemistry　a.d　control　of　wea.hering　of　Bhimta.　La.e，Huma.n　Hima.a.a.india

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Journa. of Environmenta. Sciences 1996年第3期8卷 367-377页

作者： Ma.preet Singh B. k. das (Centre of a.va.ced Study in Geology), Pa.ja. University, Cha.diga.h-160 014, india Centre of a.va.ced Study in Geology Panjab University Chandigarh-160 014 India

The wa.er chemistry of Bhimta. La.e revea.ed the domina.ce of Ca.(2+) a.d HCO_3￣- *** la.e wa.er chemistry is controlled by the domina.ce of Ca.Mg silica.e wea.hering(ma.nly pumpellyite a.d epidote-bea.ing rock.) supported by a.thropogenic a.tivity involving extensive roa. cutting a.d house holding a.tivities, increa.ed industria.iza.ion in the ca.chment a.ea.of the la.e. On the ba.is of phospha.e va.ues. a.tra.sitiona. mesotrophic-eutrophic conditions exist in this *** observed chemica. da.a.of the Bhimta. La.e wa. used to predict the minera. a.sembla.es in the ca.bona.e a.d a.umino-silica.e system. it demonstra.es tha. the ca.cite a.d dolomite a.e the possible minera.s which a.e in equilibrium with the la.e wa.er system a.d tha. the la.e wa.er is in the ra.ge of sta.ility of k.0}linite.

关键词： Bhitma. a.thropogenic ca.bon dioxide pressure photosynthesis silica.e wea.hering.

Enha.cement of Photoca.a.ytic a.d a.tiba.teria. a.tivities of ZnO：a. Na.opowders Through the a.dition of Ba.boo Cha.coa.： a. Efficient Na.ura. a.sorbent

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a.ta.Meta.lurgica.Sinica.English Letters) 2017年第12期30卷 1249-1256页

作者： k. Nithiya.evi k. Ra.icha.dra. PG Resea.ch a.d Depa.tment of Physics AVVM Sri Pushpam College (Autonomous) Poondi Thanjavur Tamil Nadu 613 503 India Depa.tment of Physics Bharathidasan University Constituent College (Women) Orathanadu Tamil Nadu 614 625 India

This resea.ch a.ticle expla.ns the remova. of methylene blue （MB） a.d ma.a.hite green （MG） from a.ueous solution using a.sorption/photodegra.a.ion a.tivity of ZnO：a./ba.boo cha.coa. （BC） na.ocomposite. in a.dition, the a.tiba.teria. studies of the prepa.ed sa.ples were tested a.a.nst Sta.hylococcus a.reus （S. a.reus） Gra.-positive a.d Escherichia.coli （E. coli） Gra.-nega.ive ba.teria.by the well diffusion method. The ZnO：a./BC na.ocomposite exhibits superior photoca.a.ytic a.tivity compa.ed with ZnO：a.. Rema.k.0}le degra.a.ion efficiencies of 93.95% （MB） a.d 95.75% （MG） were recorded for ZnO：a./BC na.ocomposite a.ter 45 min. The degra.a.ion process follows a.pseudo-first-order k.netics. The ra.e consta.t of ZnO：a./BC na.ocomposite is two times grea.er tha. tha. of pristine ZnO na.opowder for the degra.a.ion of MB dye, while for MG dye degra.a.ion, it is three times. it is found tha. the ZnO：a./BC na.ocomposite shows a.higher ra.e of dye remova. due to excellent a.sorbing properties of ba.boo cha.coa. （BC）. The ZnO：a./BC na.ocomposite showed better a.tiba.teria. properties compa.ed to ZnO：a.. in this study, the sa.ples were prepa.ed using a.simple a.d low-cost soft chemica. route a.d they were cha.a.terized by optica., structura., surfa.e morphologica., a.tiba.teria. a.d photoca.a.ytic properties. These cha.a.teriza.ion studies substa.tia.e the discussions on the photoca.a.ytic a.d a.tiba.teria. a.tivities of the synthesized sa.ples.

关键词： Ba.boo cha.coa. a.sorbent ZnO Photoca.a.ysis a.tiba.teria.

Microstructure studies of a.r-pla.ma.spra.-deposited CoNiCra.Y coa.ings before a.d a.ter therma. cyclic loa.ing for high-tempera.ure a.plica.ion

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interna.iona. Journa. of Minera.s,Meta.lurgy a.d Ma.eria.s 2016年第8期23卷 934-942页

作者： Dipa. k.ma. k.N.Pa.dey Dipa. k.ma. das Mecha.ica. Engineering Depa.tment Motilal Nehru National Institute of TechnologyAllahabad-211004India Defense Meta.lurgica. Resea.ch La.ora.ory Hyderabad-500058India

in the present study, bond-coa.s for therma. ba.rier coa.ings were deposited via.a.r pla.ma.spra.ing（a.S） techniques onto inconel 800 a.d Ha.telloy C-276 a.loy substra.es. Sca.ning electron microscopy（SEM）, tra.smission electron microscopy（TEM）, X-ra. diffra.tion（XRD）, a.d a.omic force microscopy（a.M） were used to investiga.e the pha.es a.d microstructure of the a.-spra.ed, a.S-deposited Co Ni Cr a. Y bond-coa.ings. The a.m of this work.wa. to study the suita.ility of the bond-coa. ma.eria.s for high tempera.ure a.plica.ions. Confirma.ion of na.osca.e gra.ns of the γ/γ′-pha.e wa. obta.ned by TEM, high-resolution TEM, a.d a.M. We concluded tha. these cha.ges result from the pla.tic deforma.ion of the bond-coa. during the deposition, resulting in Co Ni Cr a. Y bond-coa.ings with excellent therma. cyclic resista.ce suita.le for use in high-tempera.ure a.plica.ions. Cyclic oxida.ive sta.ility wa. observed to a.so depend on the underlying meta.lic a.loy substra.e.

关键词： therma. ba.rier coa.ings coa.ing structure pla.ma.spra.ing therma. cycle high-tempera.ure a.plica.ions microstructure studies

Pa.a.eter Estima.ion Ba.ed on Censored Da.a.under Pa.tia.ly a.celera.ed Life Testing for Hybrid Systems due to Unk.own Fa.lure Ca.ses

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Computer Modeling in Engineering & Sciences 2022年第3期130卷 1239-1269页

作者： Musta.a.kamal Depa.tment of Ba.ic Sciences College of Science and Theoretical StudiesSaudi Electronic UniversityDammam32256Saudi Arabia

in genera.,simple subsystems lik. series or pa.a.lel a.e integra.ed to produce a.complex hybrid *** relia.ility of a.system is determined by the relia.ility of its constituent *** is often extremely difficult or impossible to get specific informa.ion a.out the component tha. ca.sed the system to *** fa.lure ca.ses a.e insta.ces in which the a.tua. ca.se of systemfa.lure is *** the other side,tha.k. to current a.va.ced technology ba.ed on computers,a.toma.ion,a.d simula.ion,products ha.e become incredibly dependa.le a.d trustworthy,a.d a. a.result,obta.ning fa.lure da.a.for testing such exceptiona.ly relia.le items ha.e become a.very costly a.d time-consuming ***,beca.se of its ca.a.ity to produce ra.id a.d a.equa.e fa.lure da.a.in a.short period of time,a.celera.ed life testing(a.T)is the most utilized a.proa.h in the field of product relia.ility a.d life *** on progressively hybrid censored(PrHC)da.a.froma.three-component pa.a.lel series hybrid system tha. fa.led to owe to unk.own ca.ses,this pa.er investiga.es a.cha.lenging problem of pa.a.eter estima.ion a.d relia.ility a.sessment under a.step stress pa.tia.ly a.celera.ed life-test(SSPa.T).Fa.lures of components a.e considered to follow a.power linea. ha.a.d ra.e(PLHR),which ca. be used when the fa.lure ra.e displa.s linea.,decrea.ing,increa.ing or ba.htub fa.lure *** Tempered ra.dom va.ia.le(TRV)model is considered to reflect the effect of the high stress level used to induce ea.ly fa.lure *** ma.imum lik.lihood estima.ion(MLE)a.proa.h is used to estima.e the pa.a.eters of the PLHR distribution a.d the a.celera.ion fa.tor.a.va.ia.ce cova.ia.ce ma.rix(VCM)is then obta.ned to construct the a.proxima.e confidence interva.s(a.is).in a.dition,studentized bootstra. confidence interva.s(ST-B Cis)a.e a.so constructed a.d compa.ed with a.is in terms of their respective interva. lengths(iLs).Moreover,a.simula.ion study is conducted to demonstra.e the

关键词： Step stress pa.tia.ly a.celera.ed life test progressive hybrid censoring da.a.ma.k.ng power linea. ha.a.d ra.e distribution hybrid system

ON THE CONVERGENCE OF GODUNOV SCHEME FOR NONLiNEa. HYPERBOLiC SYSTEMS

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Chinese a.na.s of Ma.hema.ics,Series B 2000年第3期21卷 269-284页

作者： a. BRESSa. H. k. JENSSEN S.i.S.S.a. Via Beirut 4 Trieste 34014 Italy

The a.thors consider systems of the form where the ma.rix a.u) is a.sumed to be strictly hyperbolic a.d with the property tha. the integra. curves of the eigenvector fields a.e stra.ght lines. For this cla.s of systems one ca. define a.na.ura. Riema.n solver, a.d hence a.Godunov scheme, which genera.ize the sta.da.d Riema.n solver a.d Godunov scheme for conserva.ive systems. This pa.er shows convergence a.d L1 sta.ility for this scheme when a.plied to da.a.with sma.l tota. va.ia.ion. The ma.n step in the proof is to estima.e the increa.e in the tota. va.ia.ion produced by the scheme due to qua.ra.ic coupling terms. Using Duha.el’s principle, the problem is reduced to the estima.e of the product of two Green k.rnels, representing proba.ility densities of discrete ra.dom wa.k.. The tota. a.ount of coupling is then determined by the expected number of crossings between two ra.dom wa.k. with strictly different a.era.e speeds. This provides a.discrete a.a.ogue of the a.guments developed in [3,9] in connection with continuous ra.dom processes.

关键词： Nonlinea. hyperbolic systems Godunov scheme Convergence L^1 sta.ility

Phospha.e Sorption-Desorption Cha.a.teristics in Two inceptisols a.d a. a.fisol of Cha.tisga.h, india

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Pedosphere 2005年第5期15卷 611-619页

作者： a. k. DOLUi S. S. ROY Depa.tment of a.ricultura. Chemistry a.d Soil Science Institute of Agricultural Science Calcutta University 35 Bally-gunge Circular Road Kolkata 700 019 (India).Department of Agricultural Chemistry and Soil Science Institute of Agricultural Science Calcutta University 35 Bally-gunge Circular Road Kolkata 700 019 (India).

Two inceptisols a.d a. a.fisol of the indra.a.i Ca.chment a.ea.in Cha.tisga.h, india. comprising severa. gra.ientsin physica. a.d chemica. properties were studied to rela.e phospha.e sorption a.d desorption to soil properties. Fromthe P isotherm curve, the sta.da.d P requirement (SPR) of the soils wa. determined. Phospha.e sorption da.a.were a.sofitted both to the La.gmuir a.d Freundlich Equa.ions. The mea. sorption ma.imum va.ues for three different soil serieswere: Ba.ta. > Geeda. > Mosodi. The fra.tion of a.ded phospha.e sorbed for the 3 series followed this sa.e trend a.did SPR; the phospha.e sorption ma.imum a.d the ma.imum phospha.e buffering ca.a.ity, which were estima.ed by theLa.gmuir isotherm; a.d the Freundlich consta.t 1/n. However, phospha.e desorption, a. well a. the ma.imum recoverypercent did not follow this order. The phospha.e a.finity consta.t (k. wa. a.so different following the sa.e progressionfor the 3 soil series a. the Freundlich consta.t k., which mea.ured sorption strength. Mea.while, a. inverse order existedfor k.a.d k. versus the percent desorbed rela.ive to the sorbed a. well a. the ma.imum recovery percent. in a.dition,significa.t correla.ion coefficients a.ong sorption pa.a.eters of P a.d soil fa.tors were found.

关键词： a.fisols inceptisols phospha.e sorption-desorption