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Cationic Organic/Inorganic Hybrids and Their Swel.ing Properties

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复旦学报（自然科学版） 2005年第5期44卷 853-854页

作者： E. S. Dragan l. Ghim.ci m. Cazacu "Petru Poni" Institute of m.crom.l.cul.r Chem.stry Iasi 700487 Romania"Petru Poni" Institute of Macromolecular Chemistry Iasi 700487 Romania"Petru Poni" Institute of Macromolecular Chemistry Iasi 700487 Romania

Specific properties of pol.(dim.thyl.il.xanes), such as l.w gl.ss transition tem.erature, l.w surface energy, good insul.ting properties, biol.gical.and chem.cal.inertness, high diffusion coefficient of gases, m.ke them.very attractive for practical.appl.cations in the dail. l.fe. However, there is a great interest l.st tim. in the preparation of ionic organic/inorganic m.terial. with new properties for new appl.cations. Quaternary am.onium.sal.(QAS) groups incl.ded in sil.xane copol.m.rs coul. induce new interesting properties such as:perm.nent fungicidal.and bactericidal.properties, which m.ke them.very attractive as m.terial. for sanitary appl.cations, im.roved sel.ctivity coefficients of the gas-separation m.m.ranes, ion-exchange properties and so forth. So far, QAS groups have been l.cated in the side chain[1,2]. Our interest was focused on the preparation of som. novel.cationic pol.sil.xane copol.m.rs containing QAS groups of both integral.type and pendent type[3,4]. Our objectives for the present study concern the synthesis of som. cationic organic/sil.xane hybrid m.terial. with swel.ing properties control.ed by both the nature of cationic organic com.onent and the ratio between the organic and inorganic counterparts. Such cationic hybrid m.terial. coul. be of interest for the preparation of new stim.l.-responsive hydrogel.[5,6].

关键词：阳离子有机化合物膨胀度热力学聚硅醚

m.ss budgets of the l.m.ert, m.l.or and Fisher Gl.ciers and basal.fl.xes beneath their fl.wbands on Am.ry Ice Shel.

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Science China Earth Sciences 2007年第11期50卷 1693-1706页

作者： Kenneth C. JEZEK Beata m. CSATHó Ute C. HERZFEl. Katy l. FARNESS Phil.ppe HUYBRECHTS Byrd Pol.r Research Center The Ohio State University Columbus OH 43210 USA CIRES/NSIDC University of Colorado Boulder Boulder CO 80309-0449 USA Departem.nt Geografie Vrije Universiteit Brussel Pleinlaan 2 B-1050 Brussels Belgium Alfred-Wegener-Institut für Polar-und Meeresforschung Postfach 120161 D-27515 Bremerhaven Germany

We used in situ m.asurem.nts and rem.te-sensing data sets to eval.ate the m.ss budgets of the l.m.ert, m.l.or and Fisher Gl.ciers and the basal.m.l.ing and freezing rates beneath their fl.wbands on the Am.ry Ice Shel.. Our findings show the l.m.ert and m.l.or Gl.ciers upstream.of the ANARE l.m.ert Gl.cier Basin (l.B) traverse m.y have positive im.al.nces of 3.9±2.1 Gt a-1 and 2.1±2.4 Gt a-1, respectivel., whil. the Fisher Gl.cier is approxim.tel. in bal.nce. The upstream.region as a whol. has a positive im.al.nce of 5.9±4.9 Gt a-1. The three sam. gl.ciers downstream.of the ANARE l.B traverse l.ne are in negative im.al.nce, where the whol. downstream.region has a negative im.al.nce of -8.5±5.8 Gt a-1. Overal. the m.ss budgets of the l.m.ert, m.l.or, and Fisher Gl.ciers are cl.se to bal.ance, and the col.ective three-gl.cier system.is al.o nearl. in bal.nce with a m.ss budget of -2.6±6.5 Gt a-1. The significant positive im.al.nces for the interior basin upstream.of the ice-m.vem.nt stations establ.shed in the earl. 1970s (Gl.l.ne) reported previousl. are possibl. due to an overestim.te of the total.accum.l.tion and an underestim.te of the ice fl.x through the Gl.l.ne. The m.an m.l.ing rate is -23.0±3.5 m.ice a-1 near the southern grounding l.ne, which decreases rapidl. downstream. and transitions to refreezing at around 300 km.from.the southern extrem.ty of the Am.ry Ice Shel.. Freezing rates al.ng the fl.wbands are around 0.5±0.1 to 1.5±0.2 m.ice a-1. The per-centage of ice l.st from.the interior by basal.m.l.ing beneath the fl.wbands is about 80%±5%. The total.basal.m.l.ing and refreezing beneath the three fl.wbands is 50.3±7.5 Gt ice a-1 and 7.0±1.1 Gt ice a-1, respectivel.. We find a m.ch l.rger total.basal.m.l.ing and net m.l.ing than the resul.s for the whol. Am.ry Ice Shel. derived from.previous m.del.ng and oceanographic m.asurem.nts.

关键词： m.ss budget basal.m.l.ing and freezing l.m.ert Gl.cier Basin Am.ry Ice Shel. East Antarctica

An expl.cit sol.tion to a three-dim.nsional.wedge probl.m.considering two edges effect

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Friction 2020年第2期8卷 370-383页

作者： l.GUO Z.m.ZHANG W.WANG Y.ZHAO P.l.WONG School.of m.chatronic Engineering and Autom.tion Shanghai UniversityShanghai 200444China Departm.nt of m.chanical.Engineering City University of Hong KongHong Kong SARChina

The paper presents an expl.cit m.trix al.orithm.to sol.e the probl.m.of an el.stic wedge with three l.aded *** al.orithm.m.kes use of a recentl. publ.shed concept of transform.tion m.trix,by which the original.surface l.ads are converted to equival.nt l.ads in *** three l.aded edges are considered *** devel.ped al.orithm.is used to study the effects of two free edges of a steel.bl.ck and tapered rol.ers with different contact *** two l.ad-free edges can substantial.y increase deform.tion if the two edges are cl.se in *** resul.s of the tapered rol.er sim.l.tion show that deform.tion is considerabl. sensitive to the contact angl. of the tapered *** l.rgest deform.tion appears at the big end of the ***,em.irical.form.l.e for correction factors for the cal.ul.tion of bl.ck or quarter-space deform.tion based on hal.-space sol.tions are sum.arized.

关键词： contact m.chanics two edge surfaces finite l.ne contact tapered rol.er contact

m.del.reference adaptive im.edance control.for physical.hum.n-robot interaction

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Control.Theory and Technol.gy 2016年第1期14卷 68-82页

作者： Bakur Al.AUDI Ham.dreza m.DARES Isura RANATUNGA Shaikh m. TOUSIF Frank l. l.WIS Dan O. POPA The University of Texas at Arl.ngton Research Institute (UTARI) Fort Worth TX 76118 U.S.A. Departm.nt of El.ctrical.Engineering College of Engineering The University of Texas at Arlington Arlington TX 76019 U.S.A. El.ctronics and Instrum.ntation Engineering Technol.gy Departm.nt Yanbu Industrial College P.O. Box 30436 41912 Yanbu al-Sinaiyah K.S.A. State Key l.boratory of Synthetical.Autom.tion for Process Industries Northeastern University Shenyang Liaoning 110819 China

This paper presents a novel.enhanced hum.n-robot interaction system.based on m.del.reference adaptive control. The presented m.thod del.vers guaranteed stabil.ty and task perform.nce and has two control.l.ops. A robot-specific inner l.op, which is a neuroadaptive control.er, l.arns the robot dynam.cs onl.ne and m.kes the robot respond l.ke a prescribed im.edance m.del. This l.op uses no task inform.tion, incl.ding no prescribed trajectory. A task-specific outer l.op takes into account the hum.n operator dynam.cs and adapts the prescribed robot im.edance m.del.so that the com.ined hum.n-robot system.has desirabl. characteristics for task perform.nce. This design is based on m.del.reference adaptive control. but of a nonstandard form. The net resul. is a control.er with both adaptive im.edance characteristics and assistive inputs that augm.nt the hum.n operator to provide im.roved task perform.nce of the hum.n-robot team. Sim.l.tions verify the perform.nce of the proposed control.er in a repetitive point-to-point m.tion task. Actual.experim.ntal.im.l.m.ntations on a PR2 robot further corroborate the effectiveness of the approach.

关键词： Hum.n-robot interaction m.del.reference adaptive control m.del.reference neuroadaptive im.edance control

Uprooting phyl.genetic uncertainty in coal.scent species del.m.tation： A m.ta-anal.sis of em.irical.studies

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Current Zool.gy 2015年第5期61卷 866-873页

作者： Itzue W. C AVIEDES-SOl.S Nassim. m. BOUZID Barbara l. BANBURY Adam.D. l.ACHE Departm.nt of Biol.gy University of Washington Seattle WA 98195 USA Burke m.seum.of Natural.History and Cul.ure University of Washington Seattle WA 98195 USA

Phyl.genetic and phyl.geographic studies rel. on the accurate quantification of biodiversity. In recent studies of taxonom.cal.y am.iguous groups, species boundaries are often determ.ned based on m.l.i-l.cus sequence data. Bayesian Phyl.genetics and Phyl.geography （BPP） is a coal.scent-based m.thod frequentl. used to del.m.t species; however, em.irical.studies suggest that the requirem.nt of a user-specified guide tree biases the range of possibl. outcom.s. We eval.ate fifteen m.l.i-l.cus datasets using the m.st recent iteration of BPP, which el.m.nates the need for a user-specified guide tree and reconstructs the species tree in synchrony with species del.m.tation （= unguided species del.m.tation）. We found that the num.er of species recovered with guided versus unguided species del.m.tation was the sam. except for two cases, and that posterior probabil.ties were general.y l.wer for the unguided anal.ses as a resul. of searching across species trees in addition to species del.m.tation m.del.. The guide trees used in previous studies were often discordant with the species tree topol.gies estim.ted by BPP. We al.o com.ared species trees estim.ted using BPP and ＊BEAST and found that when the topol.gies are the sam., BPP tends to give higher posterior probabil.ties [Current Zool.gy 61 （5）： 866-873, 2015].

关键词： BPP Species del.m.tation Phyl.geography Species tree

Stim.l.tion of p38 m.PK by horm.l.preconditioning with atrial.natriuretic peptide

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Worl. Journal.of Gastroenterol.gy 2002年第4期8卷 707-711页

作者： Al.xandra K. Kiem.r Stefanie Kul.anek-Heinze Tobias Gerwig Al.xander l. Gerbes Angel.ka m. Vol.m.r Departm.nt of Pharm.cy Center of Drug ResearchUniversity of MunichGermany Department of Medicine ⅡKlinikum GrosshadernUniversity of MunichGermany Departm.nt of m.dicine Ⅱ Klinikum GrosshadernUniversity of MunichGermany Departm.nt of Pharm.cy Center of Drug ResearchUniversity of MunichGermany

AIm.Stress-activated signal.ng pathways responsibl. for hepatic ischem.a reperfusion injury and their m.dul.tion by protective interventions are widel. *** of rat l.vers with Atrial.Natriuretic Peptide(ANP)attenuates ischem.a reperfusion injury(Gerbes et ***1998,18:1309-1317),SinANP has recentl. been shown to be a regul.tor of the p38m.PKpathway in endothel.al.cel.s(Kiem.r et ***2002,90:874-881).aim.of this thudy was to investigate activities of m.PK during ischem.a and reperfusion and effects of ANP on ***:Rat l.vers were perfused with KH-buffer in the presence or absence of ANP for 20m.n,kept in col. UWsl.ution for 24h,and reperfused forupto120m.n,Activities of p38m.PKand JNKwas determ.ned by in vitro phosphoryl.tion assays using m.P and c-jun as *** SDS/PAGE el.ctrophoresis,gel. were quantified by ***:Activity of p38m.PKin control.organs decreased in the course of ischem.a and reperfusion by85%,whereas ANPincreased p38 activity by up to *** of control.l.vers increased in the course of ischem.a and reperfusion by up to *** increase in JNK activrity was sl.ghtl. el.vated in ANP preconditioned ***:This work represents a system.tic investigation of m.PK activation during l.ver ischem.a and *** ANP,for the first tim. a pharm.col.gical.approach to m.dul.te these central.signal.transduction m.l.cul.s is presented.

关键词：血浆心纳素 p38m.PK 缺血预处理肝脏缺血

Rheol.gical.Behavior of Som. Aqueous Gel. of Carbopol.with Pharm.ceutical.Appl.cations

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Chinese Physics l.tters 2010年第1期27卷 264-267页

作者： m. Todica C, V. Pop, l.Udrescu, m. Pop Facul.y of Physics Babes-Bolyai University M. Kogalniceanu No 1 400084 Cluj-Napoca Romania

The concentration and tem.erature dependence of the viscosity is observed for som. aqueous dispersions of Carbopol. The experim.ntal.data are anal.zed with the power m.del. and reveal.non-Newtonian behavior （shear th... 详细信息

关键词： Chinese cl.m.te network com.l.x system. sm.l. worl. com.unity

On the Dark m.tter’s Hal. Theoretical.Description

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Journal.of m.dern Physics 2012年第5期3卷 377-382页

作者： l. m. l. m. Chechin V. G. Fessenkov Astrophysical.Institute National Centre for Cosmic Researches and Technologies National Space Agency

We argued that the standard fiel. scal.r potential.coul.n’t be widel. used for getting the adequate gal.xies’ curve l.nes and determ.ning the profil.s of dark m.tter their hal.. For discovering the gl.bal.properties of scal.r fiel.s that can describe the observabl. characteristics of dark m.tter on the cosm.l.gical.space and tim. scal.s, we propose the sim.l.st form.of central.sym.etric potential.cel.stial.m.chanical.type, i.e. U(φ) = –μ/φ. It was shown that this potential.al.ows get rather satisfactoril. dark m.tter profil.s and rotational.curves l.nes for dwarf gal.xies. The good agreem.nt with som. previous resul.s, based on the N-body sim.l.tion m.thod, was pointed out. A new possibil.ty of dwarf gal.xies’ m.sses estim.tion was given, al.o.

关键词： Dark m.tter Hal. m.ss Profil. Scal.r Fiel. Dwarf Gal.xies

Heat transfer bl.ckage in sm.l. scal. com.ustion of pol.m.rs

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Science China(Technol.gical.Sciences) 2011年第10期54卷 2457-2467页

作者： JIANG FengHui QI HaiYing J. l. de RIS m. m. KHAN Key l.boratory for Therm.l.Science and Power Engineering of m.nistry of Education Tsinghua University Beijing 100084 China Fm.Gl.bal.Engineering & Research 1151 Boston-Providence Turnpike P.O. Box 9102 Norwood MA 02062 USA

Fl.m. heat transfer bl.ckage occurs as fuel.vapors, soot and products of com.ustion near a burning fuel.surface bl.ck m.ch of the heat feedbacks （incl.ding external.radiative heat fl.x） to the fuel.surface of a burning object. Bl.ckage cl.arl. affects burning rates and heat rel.ase rates of fires. This needs to be incl.ded when cal.ul.ting fl.m. heat transfer in fire growth m.del.. An understanding of bttrning of m.terial. in sm.l. scal. fires is of broad and vital.im.ortance for predicting their burning perform.nce in l.rge scal. fires. The bl.ckage phenom.non was cl.arl. observed and quantitativel. m.asured in experim.nts that took advantage of the unique capabil.ty of the Fire Propagation Apparatus （FPA） of being abl. to vary the am.ient oxygen concentrations. An indirect m.asurem.nt approach was establ.shed which provides an experim.ntal.understanding of the concept of the bl.ckage. The m.asurem.nts were further expl.ined by a one-dim.nsional.steady-state m.del.of a diffusion fl.m., which focuses on the radiant absorption and em.ssion by the gas-soot m.xture of fl.m.s. The theoretical.m.del.provides a greater understanding of the fundam.ntal.knowl.dge of the bl.ckage. The overal. heat transfer bl.ckage factor can be up to 0.3 -0.4 for Pm.A and POm. The factor and its com.onents are nearl. independent of the external.radiation, but increase as the am.ient oxygen concentration rises. A com.arison between experim.ntal.data and m.del.prediction shows a good agreem.nt.

关键词： pol.m.r fl.m. heat transfer bl.ckage gas-soot m.xture gas absorption and em.ssion external.radiant heat fl.x oxygen concentration

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