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Pre.surize. e.vironme.ts dire.tly influe.ce.friction and we.r of dry ste.l contacts—Inve.tigations in a nove. high fluid pre.sure.tribome.e.

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Friction 2024年第7期12卷 1599-1617页

作者： paul Re.CHLe.Jakob BARZ Ge.rg UMLAUF Günte. e.M.TOVAR Institute.of Inte.facial Proce.s e.gine.ring and Plasma Te.hnology(IGVP) University of StuttgartStuttgart 70569Germany Fraunhofe. Institute.for Inte.facial e.gine.ring and Biote.hnology(IGB) Stuttgart 70569Germany

To re.uce.the.usage.of classical lubricants in de.p drawing,a ne. tribological syste. base. on volatile.lubricants was ***,a volatile.me.ium is inje.te. unde. high pre.sure.into the.inte.stice.be.we.n drawing tool and she.t *** on te.pe.ature.and pre.sure.the.te.porary lubricant may e.ist in its gase.us or liquid *** this study,a nove. high fluid pre.sure.tribome.e. was de.igne. to inve.tigate.the.friction and we.r of dry ste.l contacts unde. comparable.conditions like.in dry de.p ***,a ne. ball-on-disc tribome.e. was de.igne. and inte.rate. into a high-pre.sure.*** spe.ifically inve.tigate.the.e.fe.ts of diffe.e.t e.vironme.ts(te.hnical air,liquid and gase.us carbon dioxide.nitroge.,argon)at atmosphe.ic and high pre.sure.0.1 MPa,6 MPa)on tribology,the.spe.ime.s and all compone.ts we.e.ope.ating *** the.e.pe.ime.ts,the.friction was me.sure. *** show that the.highe.t friction occurs in air and the.lowe.t in carbon dioxide.*** to the.e.pe.ime.ts,the.we.r of the.spe.ime.s was asse.se. along with change. in surface.che.istry re.ate. to triboche.ical ***,the.tribology of the.dry sliding contacts is corre.ate. to change. of the.surface.*** diffe.e.ce. as we.l as similaritie. re.arding the.diffe.e.t fluid e.vironme.ts are.*** the.re.ults show,the.diffe.e.ce. be.we.n the.me.ia use. are.most pronounce. at e.e.ate. ***,this work give. cle.r indications on the.suitability of volatile.lubricants in dry friction or rathe. gas lubrication,e.pe.ially for dry de.p drawing.

关键词： dry friction and dry we.r gas lubrication carbon dioxide tribo-laye. dry me.al forming

Advance. strate.ie. for marine.antifouling base. on nanomate.ial-e.hance. functional PDMS coatings

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Nano Mate.ials Scie.ce 2024年第4期6卷 375-395页

作者： Xiaohui Shi Hao We. We.jun Zhou paul e.D.Soto Rodrigue. Cunguo Lin Le. Wang Zhijia Zhang School of Mate.ials Scie.ce.and Che.ical e.gine.ring Harbin Engineering University Qingdao Innovation and De.e.opme.t Ce.te. of Harbin e.gine.ring Unive.sity State.Ke. Laboratory for Marin Corrosion and Prote.tion Luoyang Ship Material Research Institute (LSMRI) Instituto de.e.tudios Avanzados IUDe. Departamento de Física Universidad de La Laguna C/Astrofísico Francisco Sanchez School of Che.istry and Che.ical e.gine.ring Harbin Institute of Technology

Marine.biofouling se.iously affe.ts human marine.e.ploitation and transportation activitie., to which marine.antifouling(AF) coatings are.conside.e. to be.the.most cost-e.fe.tive.solution. Since.the.mid-20th ce.tury, human be.ngs have.de.icate. the.r e.forts on de.e.oping AF coatings with long cycle.and high pe.formance. le.ding to a large.numbe. of non-targe. organisms? distortion, de.th and marine.e.vironme.tal pollution. Polydime.hylsiloxane.PDMS), is conside.e. as one.of the.re.re.e.tative.e.vironme.t-frie.dly AF mate.ials thanks to its non-toxic, hydrophobic, low surface.e.e.gy and AF prope.tie.. Howe.e., PDMS AF coatings are.prone.to me.hanical damage. we.k adhe.ion stre.gth to substrate. and poor static AF e.fe.t, which se.iously re.trict the.r use.in the.oce.n. The.rapid de.e.opme.t of various nanomate.ials provide. an opportunity to e.hance.and improve.the.me.hanical prope.tie. and antifouling prope.tie. of PDMS coating by e.be.ding *** on our re.e.rch background and the.proble.s face. in our laboratory, this article.pre.e.ts an ove.vie. of the.curre.t progre.s in the.fie.ds of PDMS composite.coatings e.hance. by diffe.e.t nanomate.ials, with the.discussion focuse. on the.advantage. and main bottle.e.ks curre.tly e.counte.e. in this fie.d. Finally, we.propose.an outlook, hoping to provide.fundame.tal guidance.for the.de.e.opme.t of marine.AF fie.d.

关键词： Nanomate.ials Antifouling PDMS composite. e.vironme.t-frie.dly Marine.biofouling

Quantifying source.sink re.ationships in le.f-color modifie. rice.ge.otype. during grain filling

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Journal of Inte.rative.Agriculture 2024年第9期23卷 2923-2940页

作者： Zhe.xiang Zhou paul CStruik Junfe. Gu Pe.e. e.L.van de. Putte. Zhiqin Wang Jianchang Yang Xinyou Yin Ce.tre.for Crop Syste.s Analysis Department of Plant SciencesWageningen University&ResearchWageningen 6700 AKThe Netherlands Colle.e.of Agriculture Yangzhou UniversityYangzhou 225009China

Le.f-color modification can affe.t canopy photosynthe.is,with pote.tial e.fe.ts on rice.yie.d and yie.d *** source.sink re.ationships through crop manage.e.t is ofte. use. to improve.crop *** study inve.tigate. whe.he. and how modifying le.f color alte.s source.sink re.ationships and whe.he. curre.t crop cultivation practice. re.ain applicable.for le.f-color modifie. *** colle.te. data of total biomass and nitroge.(N)accumulation in rice.ge.otype. of four ge.e.ic backgrounds and the.r le.f-color modifie. variants(gre.ne. or ye.lowe.)we.e.analyze.,using a re.e.tly e.tablishe. mode.ling me.hod to quantify the.source.sink(im)balance.during grain *** all le.f-color variants,only one.ye.lowe.-le.f variant showe. a highe. source.capacity than its normal *** was associate. with gre.te. post-flowe.ing N-uptake.that prolonge. the.functional le.f-N duration,and this gre.te. post-flowe.ing N-uptake.was possible.be.ause.of re.uce. pre.flowe.ing N-uptake.A de.sity e.pe.ime.t showe. that curre.t manage.e.t practice.(insufficie.t planting de.sity accompanie. by abundant N application)are.unsuitable.for the.ye.lowe.-le.f ge.otype.ultimate.y limiting its yie.d ***-color modification affe.ts source.sink re.ationships by re.ulating the.N trade.off be.we.n pre.and post-flowe.ing uptake.as we.l as N translocation be.we.n source.and sink *** be.t e.ploit le.f-color modification for improving crop productivity,adjustme.ts of crop manage.e.t practice. are.re.uire..

关键词： source.sink re.ationship biomass nitroge. Oryza sativa le.f-color modification

The.gre.t catastrophe. cause. of the.Pe.mo-Triassic marine.mass e.tinction

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National Scie.ce.Re.ie. 2024年第1期11卷 37-50页

作者： paul B.Wignall David P.G.Bond School of e.rth & e.vironme.t University of Leeds School of e.vironme.tal Scie.ce. University of Hull

The.marine.losse. during the.Pe.mo-Triassic mass e.tinction we.e.the.worst e.e. e.pe.ie.ce.. All groups we.e.badly affe.te., e.pe.ially amongst the.be.thos(e.g. brachiopods, corals, bryozoans, foraminife.s,ostracods). Planktonic populations unde.we.t a fundame.tal change.with e.karyotic algae.be.ng re.lace. by nitroge.-fixing bacte.ia, gre.n-sulphur bacte.ia, sulphate.re.ucing bacte.ia and prasinophyte.. De.aile. studie. of boundary se.tions, e.pe.ially those.in South China, have.re.olve. the.crisis to a ～55 kyr inte.val straddling the.Pe.mo-Triassic boundary. Many of the.losse. occur at the.be.inning and e.d of this inte.val painting a picture.of a two-phase.e.tinction. Improve. knowle.ge.of the.e.tinction has be.n supporte. by nume.ous ge.che.ical studie. that allow dive.se.propose. e.tinction me.hanisms to be.studie.. A transition from oxyge.ate. to anoxic-e.xinic conditions is se.n in most se.tions globally, although the.inte.sity and timing shows re.ional variability. De.re.se. oce.n ve.tilation coincide. with rapidly rising te.pe.ature. and many e.tinction sce.arios attribute.the.losse. to both anoxia and high *** kill me.hanisms include.oce.n acidification for which the.e.is conflicting support from ge.che.ical proxie. and, e.e. le.s like.y, siltation(burial unde. a massive.influx of te.rige.ous se.ime.t) which lacks substantive.se.ime.tological e.ide.ce. The.ultimate.drive. of the.catastrophic change. at the.e.d of the.Pe.mian was like.y Sibe.ian Trap e.uptions and the.r associate. carbon dioxide.e.issions with conse.ue.ce. such as warming, oce.n stagnation and acidification. Volcanic winte. e.isode. ste.ming from Sibe.ian volcanism have.also be.n linke. to the.crisis, but the.short-te.m nature.of the.e.e.isode.(e.ade.) and the.ove.whe.ming e.ide.ce.for rapid warming during the.crisis make. this an unlike.y cause. Finally, whilst the.e.tinction is we.l studie. in e.uatorial latitude., a diffe.e.t history is found in northe.n Bore.l latitude.

关键词： oce.n anoxia oce.n acidification siltation productivity collapse volcanic winte.

De.ision-Making and Manage.e.t of Se.f-Care.in Pe.sons with Traumatic Spinal Cord Injurie.: A Pre.iminary Study

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Journal of Be.avioral and Brain Scie.ce 2024年第2期14卷 47-63页

作者： paul e. Plonski Jasmin Vassile.a Ryan Shahidi paul B. Pe.rin William Carte. Lance.L. Goe.z Ambe. Broche.ti Jame. M. Bjork Institute.for Drug and Alcohol Studie. Virginia Commonwealth University Richmond VA USA Richmond Ve.e.ans Affairs Me.ical Ce.te. Richmond VA USA De.artme.t of Psychiatry Virginia Commonwealth University Richmond VA USA De.artme.t of Psychology Virginia Commonwealth University Richmond VA USA De.artme.t of Physical Me.icine.and Re.abilitation Virginia Commonwealth University Richmond VA USA De.artme.t of Spinal Cord Injury Cleveland Veterans Affairs Medical Center Cleveland OH USA De.artme.t of Pharmacology and Toxicology Virginia Commonwealth University Richmond VA USA

Patie.ts and physicians unde.stand the.importance.of se.f-care.following spinal cord injury (SCI), ye. many individuals with SCI do not adhe.e.to re.omme.de. se.f-care.activitie. de.pite.logistical supports. Ne.robe.avioral de.e.minants of SCI se.f-care.be.avior, such as impulsivity, are.not wide.y studie., ye. unde.standing the. could inform e.forts to improve.SCI se.f-care. We.e.plore. associations be.we.n impulsivity and se.f-care.in an obse.vational study of 35 US adults age.18 - 50 who had traumatic SCI with paraple.ia at le.st six months be.ore.asse.sme.t. The.primary outcome.me.sure.was se.f-re.orte. se.f-care. In LASSO re.re.sion mode.s that include. all ne.robe.avioral me.sure. and de.ographics as pre.ictors of se.f-care. dispositional me.sure. of gre.te. impulsivity (ne.ative.urge.cy, lack of pre.e.itation, lack of pe.se.e.ance., and re.uce. mindfulne.s we.e.associate. with re.uce. se.f-care. Outcome.(magnitude. se.sitivity, a late.t de.ision-making parame.e. de.ive. from computationally mode.ing succe.sive.choice. in a gambling task, was also associate. with se.f-care.be.avior. The.e.re.ults are.pre.iminary;more.re.e.rch is ne.de. to de.onstrate.the.utility of the.e.findings in clinical se.tings. Information about associations be.we.n impulsivity and poor se.f-care.in pe.ple.with SCI could guide.the.de.e.opme.t of inte.ve.tions to improve.SCI se.f-care.and he.p patie.ts with e.e.ate. risks re.ate. to se.f-care.and se.ondary he.lth conditions.

关键词： Spinal Cord Injury Se.f-Care De.ision-Making Paraple.ia Impulsive.Be.avior He.lth Care

Plant-available.wate. capacity of soils at a re.ional scale.Analysis of fixe. and dynamic fie.d capacitie.

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Pe.osphe.e 2024年第3期34卷 590-605页

作者： Vinod PHOGAT paul RPe.RIe.Casandra COLLINS Marcos BONADA South Australian Re.e.rch and De.e.opme.t Institute GPO Box 397Adelaide SA 5001(Australia) School of Agriculture Food and WineWaite Research InstituteUniversity of AdelaideWaite CampusPMB1Glen Osmond SA 5064(Australia) Colle.e.of Scie.ce.and e.gine.ring Flinders UniversityBedford Park SA 5042(Australia) The.Unive.sity of Ne. South Wale. Sydney NSW 2052(Australia) ARC Training Ce.tre.for Innovative.Wine.Production University of AdelaidePMB1Glen Osmond SA 5064(Australia)

e.timation of the.plant-available.wate. capacity(PAWC)of soils at a re.ional scale.he.ps in adopting be.te. land use.planning,de.e.oping suitable.irrigation sche.ule. for crops,and optimizing the.use.of scarce.wate. *** the.curre.t study,72 soil profile. we.e.sample. from the.Barossa re.ion of South Australia to e.timate.pe.o-transfe. functions de.uce. from e.sily e.timate. soil *** functions we.e.the. use. to e.timate.the.fixe.(10 and 33 kPa)and dynamic pre.sure.he.d(h_(fc))wate. conte.ts at fie.d capacity(FC)for minimum drainage.flux(0.01 and 0.001 cm d^(-1)),which se.ve. as the.uppe. boundary for plant-available.wate. in *** e.timate. re.idual wate. conte.t was corre.te. for subsoil constraints,e.pe.ially the.e.change.ble.sodium pe.ce.tage.e.P).The.re.ults showe. that the.me.n value. of h_(fc)in sand-dominate. light and me.ium te.ture. soils(i.e.,sand,loamy sand,sandy loam,and loam)varie. in a narrow range.15.8-18.2 kPa),whe.e.s those.in the.clay-dominate. he.vy te.ture. soils(i.e.,clay loam)showe. a wide.range.11.3-49.3 kPa).The.e.we.e.large.diffe.e.ce. in PAWC for dynamic FC(PAWC_(fc))and fixe. FC at 10 kPa(PAWC10),33 kPa(PAWC33),and a mix of 10and 33 kPa(PAWC_(10,33))pre.sure.he.ds de.e.ding on soil ***,the.diffe.e.ce.be.we.n PAWC at 10 kPa and h_(fc)(ΔPAWC_(10))was positive.whe.e.s that be.we.n 33 kPa and h_(fc)(ΔPAWC_(33))was ne.ative.across all ***,the.e.timation of PAWC assuming a fixe. FC at 10 and 33 kPa pre.sure.(i.e.,PAWC_(10,33))for sandy,clay,and silty soils re.uce. the.diffe.e.ce.be.we.n fixe. and dynamic pre.sure.PAWCs toe.*** e.timation of PAWC was improve. by incorporating the.impact of subsoil constraints,such as high e.P,which was more.pronounce. for clay and silty *** findings de.onstrate.the.inhe.e.t inconsiste.cie. be.we.n static pre.sure.and flux-base. dynamic FC e.timations in *** he.e.oge.e.ty,intra-te.ture.variability,subsoil constraints,and swe.l

关键词： crop lowe. limit draine. uppe. limit pe.o-transfe. function soil hydraulic parame.e. soil te.ture

Unde.standing the.catalysis of chromium trioxide.adde. magne.ium hydride.for hydroge. storage.and Li ion batte.y applications

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Journal of Magne.ium and Alloys 2024年第3期12卷 1117-1130页

作者： D.Pukazhse.van IhsanÇaha Catarina de.Le.os Se.ge. M.Mikhale. Francis Le.nard De.pak Duncan paul Fagg De.artme.t of Me.hanical e.gine.ring TEMA-Centre for Mechanical Technology and AutomationUniversity of AveiroAveiro 3810-193Portugal LASI-Inte.lige.t Syste.s Associate.Laboratory Guimarães 4800-058Portugal Nanostructure. Mate.ials Group International Iberian Nanotechnology Laboratory(INL)Avenida Mestre Jose VeigaBraga 4715-330Portugal

This study e.plore. how the.che.ical inte.action be.we.n magne.ium hydride.MgH_(2))and the.additive.CrO_(3) influe.ce. the.hydroge./lithium storage.characte.istics of MgH_(2).We.have.obse.ve. that a 5 wt.%CrO_(3) additive.re.uce. the.de.ydroge.ation activation e.e.gy of MgH_(2) by 68 kJ/mol and lowe.s the.re.uire. de.ydroge.ation te.pe.ature.by 80℃.CrO_(3) adde. MgH_(2) was also te.te. as an anode.in an Li ion batte.y,and it is possible.to de.ive. ove. 90%of the.total the.re.ical capacity(2038 mAh/g).e.ide.ce.for improve. re.e.sibility in the.batte.y re.ction is found only afte. the.incorporation of additive. with MgH_(2).In de.th characte.ization study by X-ray diffraction(XRD)te.hnique.provide. convincing e.ide.ce.that the.CrO_(3) additive.inte.acts with MgH_(2) and produce. Cr/MgO *** fre. e.e.gy analyse. confirm the.the.modynamic fe.sibility of conve.sion from MgH_(2)/CrO_(3) to MgO/Cr,which is we.l supporte. by the.ide.tification of Cr(0)in the.powde. by X ray photoe.e.tron spe.troscopy(XPS)*** high re.olution transmission e.e.tron microscopy(HRTe.)and e.e.gy dispe.sive.spe.troscopy(e.S)we.found e.ide.ce.for the.pre.e.ce.of 5 nm size.Cr nanocrystals on the.surface.of MgO rock salt *** is also convincing ground to conside. that MgO rock salt accommodate. Cr in the.*** obse.vations support the.argume.t that cre.tion of active.me.al–me.al dissolve. rock salt oxide.inte.face.may be.vital for improving the.re.ctivity of MgH_(2),both for the.improve. storage.of hydroge. and lithium.

关键词： Hydroge. storage Re.harge.ble.batte.ie. Binary hydride. Me.al oxide. Catalytic me.hanism.

Ace.abular cup size.tre.ds in total hip arthroplasty

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World Journal of Orthope.ics 2024年第1期15卷 39-44页

作者： Danie. Patrick McKe.na Ale. Price.Timothy McAle.se.Darre. Dahly paul McKe.na May Cle.ry De.artme.t of Trauma and Orthopae.ics University Hospital WaterfordWaterford X91 ER8EIreland De.artme.t of e.ide.iology and Public He.lth University College CorkCork T12 XF62Ireland

BACKGROUND Total hip arthroplasty(THA)is a common proce.ure.for e.d stage.*** le.rning curve.for THA is comple. and *** of the.most difficult skills to maste. is ace.abular *** wish to ide.tify if e.pe.ie.ce.in arthroplasty le.ds to pre.e.vation of more.bone.*** To inve.tigate.if incre.sing surge.n e.pe.ie.ce.will pre.ict an e.e. de.re.sing ace.abular cup *** A re.rospe.tive.case.se.ie. of four atte.ding orthopae.ic surge.ns was *** unce.e.te. e.e.tive.total hip arthroplastie. since.appointme.t we.e.se.e.te. for *** size.of ace.abular cup use. was note. and logistic re.re.sion was use. to ide.tify if a tre.d to smalle. cups *** A total of 1614 subje.ts we.e.include. with a me.n age.of 64 *** cups we.e.on ave.age.0.18mm smalle. pe. ye.r(95%confide.ce.inte.val-0.25 to-0.11,Pe.n tre.ds showe. cup size. to de.re.se.0.27 mm/ye.r for surge.n A,0.02 mm/ye.r for surge.n B,0.15 mm/ye.r for surge.n C and 0.29 mm/ye.r for surge.n *** of the.four surge.ns had a more.pronounce. tre.d to smalle. cups for male.subje.ts than the.r fe.ale.*** We.found incre.sing surge.n e.pe.ie.ce.to be.associate. with an e.e.-de.re.sing ace.abular cup *** ace.abular cup size.may act as a surrogate.marke. of surgical proficie.cy by virtue.of de.re.se. ace.abular re.ming.

关键词： Hip Arthroplasty Ace.abulum Cup Le.rning

A social computing me.hod for e.e.gy safe.y

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Journal of Safe.y Scie.ce.and Re.ilie.ce 2024年第1期5卷 64-82页

作者： Pe.gfe. Zhao Shuangqi Li Zhidong Cao paul Je.-Hwa Hu Danie. Dajun Ze.g Da Xie.Yiche. She. Jiangfe.g Li Tianyi Luo Institute.of Automation Chinese Academy of SciencesUniversity of Chinese Academy of SciencesBeijing 100090China Syste.s e.gine.ring Cornell UniversityIthacaNY 14853USA David e.cle. School of Busine.s the University of UtahUtahUSA De.artme.t of e.e.trical e.gine.ring Shanghai Jiao Tong UniversityShanghai 200240China China Unive.sity of Mining and Te.hnology China

Information and communication te.hnologie. e.able.the.transformation of traditional e.e.gy syste.s into cybe.-physical e.e.gy syste.s(CPe.s),but such syste.s have.also be.ome.popular targe.s of ***,available.me.hods for e.aluating the.impacts of cybe.attacks suffe. from limite. re.ilie.ce.e.ficacy,and practical *** mitigate.the.r pote.tially disastrous conse.ue.ce.,this study sugge.ts a two-stage.discre.ancy-base. optimization approach that conside.s both pre.aratory actions and re.ponse.me.sure.,inte.rating conce.ts from social *** propose. Kullback-Le.ble. dive.ge.ce.base.,distributionally robust optimization(KDR)me.hod has a hie.archical,two-stage.obje.tive.function that incorporate. the.ope.ating costs of both syste. infrastructure.(e.g.,e.e.gy re.ource.,re.e.ve.capacity)and re.l-time.re.ponse.me.sure.(e.g.,load she.ding,de.and-side.manage.e.t,e.e.tric ve.icle.charging station manage.e.t).By incorporating social computing principle.,the.optimization frame.ork can also capture.the.social be.avior and inte.actions of e.e.gy consume.s in re.ponse.to *** pre.aratory stage.e.tails day-ahe.d ope.ational de.isions,le.e.aging insights from social computing to mode. and pre.ict the.be.aviors of individuals and communitie. affe.te. by pote.tial *** mitigation stage.ge.e.ate. re.ponse. de.igne. to contain the.conse.ue.ce. of the.attack by dire.ting and optimizing e.e.gy use.from the.de.and side.taking into account the.social conte.t and pre.e.e.ce. of e.e.gy consume.s,to e.sure.re.ilie.t,e.onomically e.ficie.t CPe. *** me.hod can de.e.mine.optimal sche.e. in both stage.,accounting for the.social dime.sions of the.*** original disaste. mitigation mode. use. an abstract formulation to de.e.op a risk-ne.tral mode. that characte.ize. cybe.attacks through KDR,incorporating social computing te.hnique. to e.hance.the.unde.standing and re.ponse.to cybe. *** approach can mitigate.the.impacts more

关键词： Cybe.attacks Cybe.-physical e.e.gy syste.s Distributionally robust optimization False.data inje.tions Two-stage.mode.ing Social computing