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Thin Films.for Coating Nanomaterials

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Ts.nghua s.ience and Technology 2005年第6期10卷 709-717页

作者： s. M. Mukhop.dhyay p. Jos.i R. V. p.likollu Dep.rtment of Mechanical and Materials.Engineering Wright State University Dayton OH 45435 USADepartment of Mechanical and Materials Engineering Wright State University Dayton OH 45435 USADepartment of Mechanical and Materials Engineering Wright State University Dayton OH 45435 USA

For nano-s.ructured s.lids.（thos. with one or more dimens.ons.in the 1-100 nm range）, attemp.s.of s.rface modification can p.s. s.gnificant and new challenges. In traditional materials. the s.rface coating could be s.veral hundreds.nanometers.in thicknes., or even microns.and millimeters. In a nano-s.ructured material, s.ch as.p.rticle or nanofibers. the coating thicknes. has.to be s.bs.antially s.aller than the bulk dimens.ons.（100 nm or les.）, yet be durable and effective. In this.p.p.r, s.me as.ects.of effective nanometer s.ale coatings.have been dis.us.ed. Thes. films.have been dep.s.ted by a non-line of s.ght （p.as.a） techniques. and therefore, they are cap.ble of modifying nanofibers. near net s.ap. cellular foams. and other high p.ros.ty materials. Two typ.s.of coatings.will be focus.d up.n：（a） thos. that make the s.rface inert and （b） thos. des.gned to enhance s.rface reactivity and bonding. The former has.been achieved by forming 1-2 nm layer of --CF2- （and/or CF3） group.0}on the s.rface, and the latter by creating a nano- layer of s.O2-typ. comp.und. Nucleation and growth s.udies.of the p.as.a-generated film indicate that they s.art forming as.2-3 nm high is.ands.that grow laterally, and eventually comp.etely cover the s.rface with 2-3 nm film. Contact angle meas.rements.indicate that thes. nano-coatings.are fully functional even before they have achieved comp.ete coverage of 2-3 nm. They s.ould therefore be ap.licable to nano-s.ructural s.lids. This.is.corroborated by ap.lication of thes. films.on vap.r grown nanofibers.of carbon, and on grap.itic foams. Coated and uncoated materials.are infiltrated with ep.xy matrix to form comp.s.tes.and their micros.ructure, as.well as.mechanical behaviors.are comp.red. The res.lts.s.ow that the nano-oxide coating can s.gnificantly enhance bond formation between carbon and organic p.as.s. thereby enhancing wettability, dis.ers.on, and comp.s.te behavior. The fluorocarbon coating, as.exp.cted, reduces.bond formation, an

关键词： s.rface modification nanomaterial nano-oxide coating fluorocarbon coating

KIRCHHOFF TYp. EQUATIONs.DEp.NDING ON A s.ALL p.RAMETER 　

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Chines. Annals.of Mathematics.s.ries.B 1995年第4期16卷 413-430页

作者： p. D’ANCONA s. s.AGNOLO (Dep.rtmellt of Mathematics. p.s. Univers.ty p.s., Italy) UNIV p.s. DEPT MATHPISAITALY

The authors.p.ove s.me global exis.ence res.lts.for equations.of Kirchhoff typ., i.e., nonlinears.retched s.ring with nonlocal terms. dep.nding on a p.rameter. This.general s.tting includes.the known res.lts.on the Kirchhoff equation with s.all data. Moreover, the authors.can als. handle s.me cas.s.of degeneracy, which es.ap.d earlier methods.

关键词： Nonlinear hyp.rbolic equations Nonlocal equations Kirchhoff equations.

A GENERALIZED CONTRACTION p.INCIp.E IN MENGER s.ACEs.Us.NG A CONTROL FUNCTION

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Analys.s.in Theory and Ap.lications 2010年第2期26卷 110-121页

作者： p. N. Dutta Binayak s. Choudhury Government College of Engineering and Ceramic Technology India Bengal Engineering and s.ience Univers.ty India

In the p.es.nt p.p.r we us. a control function to define a generalized contraction in Menger s.aces.and obtain a unique fixed p.int theorem. The work is.in line with the res.arch for develop.ng p.obabilis.ic contractions.with the help.of control functions.and related fixed p.int res.lts. We have given an examp.e to which our theorem is.ap.licable. s.me corollaries.are als. dis.us.ed.

关键词： Menger s.ace fixed p.int (φ ψ1 ψ2)-contraction

A s.udy on the mixing p.op.rtion in groundwater s.mp.es.by us.ng p.p.r diagram and p.reeqc model

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Chines. Journal Of Geochemis.ry 2011年第4期30卷 490-495页

作者： Karmegam U. Chidambaram s. p.as.nna M.V. s.s.dhar p. Manikandan s. Johns.nbabu G. Dheivanayaki V. p.ramaguru p. Manivannan R. s.inivas.moorthy K. Anandhan p Dep.rtment of Earth s.iences.Annamalai Univers.ty s.hool of Engineering and s.ience Department of Applied GeologyCurtin University s.fety Res.arch Ins.itute Atomic Energy Regulatory BoardIndra Gandhi Center for Atomic Research Dep.rtment of Earth s.iences School of PhysicalChemical and Applied SciencesPondicherry University

p.p.r (1944) diagram has.been the bas.s.for s.veral imp.rtant interp.etations.of the hydrogeochemical data. As.s.en in this.diagram, mos. natural waters.contain relatively few dis.olved cons.ituents. with cations.(metals.or bas.s. and anions.(acid radicles. in chemical equilibrium with one another. Ap.rt from the facies.rep.es.ntation, the comp.s.tion of the mixed s.mp.e can be identified in terms.of the comp.s.tion of the p.rental s.lution. To bring out this.advantage of the p.p.r diagram, a s.udy was.conducted in the Kalp.kkam region of Tamilnadu, s.uth India. By taking the geology and water table into cons.deration, two s.mp.e locations.were s.lected as.p.rent s.lution and third one as.the mixture s.mp.e. All three s.mp.es.were analyzed for calcium (Ca), magnes.um (Mg), s.dium (Na), p.tas.ium (K), chloride (Cl), s.lp.ate (s.4) and p.os.hate (p.4) by Ion Chromatograp. (Metrohm IC 861). HCO3 was.determined by volumetric titration. The p.p.r diagram s.ows.that p.rent s.lutions.clus.ered towards.Na-Mg-Ca-HCO3-Cl and Na-HCO3 facies. and the mixing s.mp.e belongs.to Na-Mg-HCO3 facies. p.reeqc interac-tive (Ver 2.8) along with the original comp.s.tion of the mixture s.mp.e was.us.d to correlate the mixing p.op.rtion identified by the p.p.r diagram.

关键词：混合比例水样品 EQC模型笛碳酸氢根离子色谱仪水文数据自然水域

Numerical inves.igation into the effect of backfilling on coal p.llar s.rength in highwall mining

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International Journal of Mining s.ience and Technology 2018年第2期28卷 281-286页

作者： Mo s. Canbulat I. Zhang C. Oh J. s.en B. Hagan p. s.hool of Mining Engineering The University of New South Wales Cs.RO Energy QCAT1 Technology Court

This.p.p.r attemp.s.to quantify the effect of backfilling on p.llar s.rength in highwall mining us.ng numerical modelling. Calibration agains. the new emp.rical s.rength formula for highwall mining was.conducted to obtain the material p.rameters.us.d in the numerical modelling. With the obtained coal s.rength p.rameters. three s.ts.of backfill p.op.rties.were inves.igated. The res.lts.reveal that the behavior of p.llars.varies.with the typ. and amount of backfill as.well as.the p.llar width to mining height ratio(w/h). In cas. of cohes.ve backfill, generally 75% backfill s.ows.a s.gnificant increas. in p.ak s.rength, and the increas. in p.ak s.rength is.more p.onounced for the p.llars.having lower w/h ratios. In cas. of noncohes.ve backfill, the changes.in both the p.ak and res.dual s.rengths.with up.to 92% backfill are negligible while the res.dual s.rength cons.antly increas.s.after reaching the p.ak s.rength only when 100%backfill is.p.aced. Bas.d on the modelling res.lts. different backfilling s.rategies.s.ould be cons.dered on a cas. by cas. bas.s.dep.nding on the typ. of backfill available and des.red p.llar dimens.on.

关键词： Highwall mining Backfill Coal p.llar s.rength Numerical modelling

Mis.ibility of Two Comp.nents.in a Binary Mixture of 9-p.enyl Anthracene Mixed with s.earic Acid or p.lymethyl Methacrylate at Air-Water Interface

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Chines. p.ys.cs.Letters 2007年第5期24卷 1331-1334页

作者： p. K. p.ul Md. N. Is.am D. Bhattacharjee s. A. Hus.ain Dep.rtment of p.ys.cs Tripura University Suryamaninagar-799130 Tripura India

We rep.rt the mis.ibility characteris.ics.of two comp.nents.in a binary mixture of 9-p.enyl anthracene （p.） mixed with s.earic acid （s.） or p.lymethyl methacrylate （p.MA）. The behaviour of s.rface p.es.ure vers.s.area p.r molecule is.therms.reveal that the area p.r molecule decreas.s.s.s.ematically with increas.ng molefractions.of p.. The characteris.ics.of areas.p.r molecule vers.s.molefractions.and collap.0} p.es.ure vs.molefraction indicate that various.interactions.involved among the s.mp.e and matrix molecules. The interaction s.heme is.found to change with the change in s.rface p.es.ure and molefraction of mixing. s.anning electron micros.op.c s.udy confirms.the aggregation of p. molecules.in the mixed films.

关键词： LANGMUIR-BLODGETT-FILMs s.ECTROs.Op.C CHARACTERIZATIONs MOLECULEs s.s.EMs

The Characteris.tion of Res.dual s.rain in Ens.s.s.liqua s.ells

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Journal of Bionic Engineering 2006年第1期3卷 33-38页

作者： D. J. s.urr R. J. Cernik s. p. Thomp.0}n p. M. Mummery s. J. Eichhorn Materials.s.ience Centre School of Materials University of Manchester Grosvenor Street Manchester M1 7HS UK CCLRC Dares.ury Laboratory Warrington Cheshire WA4 4AD UK

This.s.udy rep.rts.the variation of res.dual s.rains.within the p.s.erior ventral area of the Ens.s.s.liqua mollus. s.ell, as.determined us.ng glancing incidence s.nchrotron X-ray diffraction. The outer layer of this.s.ructure exhibits.a tens.le s.rain, in contras. to a comp.es.ive s.rain obs.rved within the inner layer. Fluctuations.in unit cell p.rameters.for the inner layer have been determined, s.owing that the micros.op.c p.is.atic layer of the s.ructure exhibits.a comp.es.ive s.rain orientated p.rallel to the s.rface of the s.ell. This.is.thought to enhance the crack deflection p.op.rties.of this.layer, and aid in res.s.ing catas.rop.ic failure. Further analys.s.of res.dual s.rains.has.been p.rformed us.ng the s.me method, throughout s.veral s.ages.of comp.es.ive tes.ing of the anterior dors.l region of the s.ell. This.identified no variation in res.dual s.rains.at various.levels.of loading, and it is.therefore p.op.s.d that load may be trans.erred via the organic matrix of mollus. s.ell s.ructures. A Raman s.ectros.op.c inves.igation, comp.ring whole and p.wdered s.ell with non-biogenic aragonite, has.s.own that res.dual s.rains.are als. p.es.nt in this.analagous.material which is.devoid of organic content. This.indicates.that the obs.rved s.rain is.not entirely due to the organic matrix.

关键词： Ens.s.s.liqua s.ell res.dual s.rain s.nchros.ron X-ray diffraction

Exis.ence of s.lutions.to Nonlinear Neumann Boundary Value p.oblems.with p.Lap.acian Op.rator and Iterative Cons.ruction

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Acta Mathematicae Ap.licatae s.nica 2011年第3期27卷 463-470页

作者： Li Wei Hai-yun Zhou Ravi p. Agarwal s.hool of Mathematics.and s.atis.ics Hebei University of Economics and Business Shijiazhuang 050061 China Ins.itute of Ap.lied Mathematics Ordnance Engineering College Shijiazhuang 050003 China Dep.rtment of Mathematical s.iences Florida Institute of Technology Melbourne FL 32901 U.S.A.

By us.ng s.me res.lts.of p.0}udo-monotone op.rator, we dis.us. the exis.ence and uniquenes. of the s.lution of one kind nonlinear Neumann boundary value p.oblems.involving the p.Lap.acian op.rator. We als. cons.ruct an... 详细信息

关键词： maximal monotone op.rator p.0}udo-monotone op.rator p.Lap.acian op.rator iterative s.heme

s.alar res.nant frequencies.and Hawking effect of an f(R) global monop.le

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Chines. p.ys.cs.C 2017年第9期41卷 138-145页

作者： H. s. Vieira J. p. Morals.Graca V. B. Bezerra Ins.itute of Cos.ology Department of Physics and Astronomy Tufts University Medford Massachusetts 02155 USA Dep.rtamento de Fis.ca Universidade Federal da Parafba Caixa Postal 5008 CEP 58051-970 Joao Pessoa PB Brazil Ins.ituto de Fis.ca Universidade Federal do Parana Curitiba PR Brazil

Mas.ive s.alar fields.are cons.dered in with a global monop.le in f（R） gravity. The exact background is.obtained and is.given in terms.of the Heun functions.to s.udy the Hawking radiation and the gravitational field p.oduced by a s.hwarzs.hild black hole s.lution of the radial p.rt of the Klein-Gordon equation in this.general Heun functions. We ap.ly the p.op.rties.of the general the res.nant frequencies.of s.alar p.rticles.

关键词： mas.ive s.alar field general Heun function black hole radiation energy level