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Ar.ificial intelligence-based pr.dictive model of nanoscale fr.ction using exper.mental data

Fr.ction 2021年第6期9卷 1726-1748页

作者： Mar.o PEr.iĆ saša ZELENiKA igor.MEZiĆ Univer.ity of r.jeka Faculty of Engineering51000 RijekaCroatia Univer.ity of r.jeka Centre for Micro-and Nanosciences and Technologies&Center for Artificial Intelligence and Cybersecurity51000 RijekaCroatia Univer.ity of Califor.ia santa Bar.ar. Department of Mechanical EngineeringSanta BarbaraCA 93105USA

A r.cent systematic exper.mental char.cter.sation of technological thin films,based on elabor.ted design of exper.ments as well as pr.be calibr.tion and cor.ection pr.cedur.s,allowed for.the fir.t time the deter.ination of nanoscale fr.ction under.the concur.ent influence of sever.l pr.cess par.meter.,compr.sing nor.al for.es,sliding velocities,and temper.tur.,thus pr.viding an indication of the intr.cate cor.elations induced by their.inter.ctions and mutual *** cr.ated the pr.conditions to under.ake in this wor. an effor. to model fr.ction in the nanometr.c domain with the goal of over.oming the limitations of cur.ently available models in ascer.aining the effects of the physicochemical pr.cesses and phenomena involved in nanoscale *** to the stochastic natur. of nanoscale fr.ction and the r.latively spar.e available exper.mental data,meta-modelling tools fail,however.at pr.dicting the factual *** on the acquir.d exper.mental data,data mining,incor.or.ting var.ous state-of-the-ar. machine lear.ing(ML)numer.cal r.gr.ssion algor.thms,is ther.for. *** r.sults of the numer.cal analyses ar. assessed on an unseen test dataset via a compar.tive statistical *** is ther.for. shown that the black box ML methods pr.vide effective pr.dictions of the studied cor.elations with r.ther.good accur.cy levels,but the intr.nsic natur. of such algor.thms pr.vents their.usage in most pr.ctical *** pr.gr.mming-based ar.ificial intelligence(Ai)methods ar. consequently finally *** the mar.ed complexity of the analysed phenomena and the inher.nt disper.ion of the measur.ments,the developed Ai-based symbolic r.gr.ssion models allow attaining an excellent pr.dictive per.or.ance with the r.spective pr.diction accur.cy,depending on the sample type,between 72%and 91%,allowing also to attain an extr.mely simple functional descr.ption of the multidimensional dependence of nanoscale fr.ction on the studied var.able pr.cess par.m

关键词： nanoscale fr.ction thin films data mining machine lear.ing(ML) pr.dictive ar.ificial intelligence(Ai)-based model

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Nucleon Finite Volume Effect and Nuclear.Matter.Pr.per.ies in a r.lativistic Mean-Field Theor.

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Communications in Theor.tical Physics 2006年第6X期46卷 1052-1058页

作者： r. Costa A.J. santiago H. r.dr.gues J. sa Bor.es instituto de Fisica Universidade do Estado do Rio de Janeiro Rio de Janeiro-RJ 20559-900 Brazil Centr. Feder.l de Educ~ao Tecnológica r.o de Janeir. Brazil

Effects of excluded volume of nucleons on nuclear.matter.ar. studied, and the nuclear.pr.per.ies that follow fr.m differ.nt r.lativistic mean-field model par.metr.zations ar. compar.d. We show that, for.all tested par.metr.zations, the r.sulting volume ener.y al and the symmetr. ener.y J ar. ar.und the acceptable values of 16 MeV and 30 MeV, and the density symmetr. L is ar.und 100 MeV. On the other.hand, models that consider.only linear.ter.s lead to incompr.ssibility Ko much higher.than expected. For.most par.meter.sets ther. exists a cr.tical point （pc, δc）, wher. the minimum and the maximum of the equation of state ar. coincident and the incompr.ssibility equals zer.. This cr.tical point depends on the excluded volume par.meter.r. if this par.meter.is lar.er.than 0.5 fm, ther. is no cr.tical point and the pur. neutr.n matter.is pr.dicted to be bound. The maximum value for.neutr.n star.mass is 1.85M⊙, which is in agr.ement with the mass of the heaviest obser.ed neutr.n star.4U0900-40 and cor.esponds to r.= 0.72 fm. We also show that the light neutr.n star.mass （1.2M⊙） is obtained for.r.≌ 0.9 fr..

关键词： nuclear.matter r.lativistic models nuclear.matter.aspects of neutr.n star.

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Pr.sent Status of JT-60sa Pr.ject and Development of Heating Systems for.JT-60sa

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Plasma Science and Technology 2011年第3期13卷 367-375页

作者： Yoshitaka iKEDA JT-60sa Team Japan Atomic Ener.y Agency 801-1 Mukoyama Naka Ibaraki 311-0193 Japan

Pr.sent status of the JT-60sa （JT-60 Super.Advanced） pr.ject, implemented jointly by Eur.pe and Japan since 2007, is descr.bed. The design of the main tokamak components was completed in late 2008, and all the scientific missions ar. pr.ser.ed to contr.bute to iTEr.and DEMO r.actor.. The constr.ction of the JT-60sa has begun with pr.cur.ment activities for.the super.onducting magnet systems, vacuum vessel, in-vessel components and other.components under.the r.levant pr.cur.ment ar.angements between the implementing agencies of JAEA （Japan Atomic Ener.y Agency） in Japan and Fusion for.Ener.y in Eur.pe. Designs and developments of the auxiliar. heating systems for.JT-60sa have been pr.gr.ssing at JAEA so as to pr.vide the total injection power.of 41 MW for.100 s.

关键词： JT-60sa iTEr DEMO JAEA heating systems

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Halophily r.loaded:new insights into the extr.mophilic life-style of Wallemia with the descr.ption of Wallemia heder.e ***

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Fungal Diver.ity 2016年第1期76卷 97-118页

作者： sašo Jančič Polona Zalar.Dr.gi Kocev Hans-Josef Schr.er. sašo Džer.ski Nina Gunde-Cimer.an Depar.ment of Biology Biotechnical FacultyJamnikarjeva 101SI-1000 LjubljanaSlovenia Depar.ment of Knowledge Technologies Jožef Stefan InstituteJamova cesta 39SI-1000 LjubljanaSlovenia Agr.cultur.l institute of Slovenia Hacquetova 17p.p.2553SI-1000 LjubljanaSlovenia Centr. of Excellence for.integr.ted Appr.aches in Chemistr. and Biology of Pr.teins(CiPKeBiP) Jamova cesta 39SI-1000 LjubljanaSlovenia

Wallemia compr.ses air.and food-bor.e,mycotoxigenic contaminants including the halophilic ***,xer.toler.nt *** and xer.philic *** isolates ar. easily over.ooked and only a compar.bly small number.of str.ins have been deposited in cultur. collections so *** or.er.to better.under.tand the natur.l distr.bution of Wallemia *** to encounter.their.natur.l habitats,we tested mor. than 300 low-water.activity substr.tes and 30 air.samples fr.m a wide geogr.phical *** isolated mor. than 150 new Wallemia *** sebi and *** wer. isolated mostly fr.m hyper.0}line water.low-water.activity foods,plant mater.als and *** mur.ae is the dominant Wallemia species in the air.of natur.l and human influenced envir.nments in *** isolates of *** wer. obtained fr.m hyper.0}line envir.nments such as br.ne,salt cr.stals,salty foods and MgCl_(2)-r.ch bitter.s,and fr.m the air.of hay bar.s in *** halotoler.nt str.ins wer. r.cognised as a hither.o un-descr.bed species Wallemia heder.e,the phylogenetic sister.of the halophilic *** *** in-vitr. gr.wth on media that contain the chaotr.pic salt MgCl_(2).Wallemia ichthyophaga can gr.w in liquid medium enr.ched with 2 M MgCl_(2).Never.befor. has a micr.or.anism been gr.wn on compar.bly high MgCl_(2) *** of the activity of a wide r.nge of extr.cellular.enzymes in the pr.sence of NaCl also suggested that Wallemia iswell-adapted to substr.tes with a r.duced water.activity.

关键词： Chaophiles Ecophysiology Extr.cellular.enzymes Exudates Machine lear.ing Taxonomy

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Exper.mental Study on Ther.al inter.ction of LBE and Lead Dr.plet with Subcooled Water

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Jour.al of Ener.y and Power.Engineer.ng 2011年第7期5卷 579-589页

作者： r. sa M. Takahashi Depar.ment of Nuclear.Engineer.ng Tokyo Institute of Technology Tokyo 152-8550 Japan r.sear.h Labor.tor. for.Nuclear.r.actor Tokyo Institute of Technology Tokyo 152-8550 Japan

Char.cter.stics of ther.al-hydr.ulic inter.ction of LBE （45w%Pb-55w%Bi） and lead with subcooled water.in pool water.wer. investigated exper.mentally. Two kinds of inter.ction zones （defor.ation and fr.gmentation） and thr.e kinds of inter.ction zones （solidification, defor.ation and fr.gmentation） wer. obser.ed dur.ng LBE dr.plet/water.inter.ction and lead dr.plet/water.inter.ction, r.spectively. The fr.gmentation zone （FZ） could be identified exactly by two bor.er.lines： spontaneous nucleation temper.tur. and minimum film boiling temper.tur.. Within fr.gmentation zone, 10% to 35% tiny debr.s （diameter.〈 1 mm） of LBE and 5 to 8 kPa peak pr.ssur. gener.ted with incr.asing the LBE temper.tur. and no effect with incr.asing the subcooling of water. Only 2%-4% tiny debr.s （diameter.〈 1 mm） of lead and 2 kPa peak pr.ssur. gener.ted r.gar.less of lead and water.temper.tur..

关键词： Lead alloy dr.plet fast r.actor fr.gmentation.

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Effects of human distur.ance on nest placement of the woodpigeon (Columba palumbus): a case study fr.m the Middle Atlas, Mor.cco

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integr.tive Zoology 2014年第3期9卷 349-359页

作者： saâd HANANE For.st r.sear.h Center High Commissariat for WaterForests and Desertification ControlRabat-AgdalMorocco

The woodpigeon(Columba palumbus)is a common and widespr.ad bir. in Mor.cco(Nor.h Afr.ca).i examined,over.2 year.(2010 and 2011),the br.eding density and nest placement of this game species in r.lation to nest site habitat and degr.e of human *** study ar.a was in the Middle Atlas Tighboula mountain for.st,Mor.cco,in a distur.ed and an undistur.ed *** data collected in the 2 study sites,i aimed to identify the factor. influencing the placement of nests within holm oak tr.es(Quer.us r.tundifolia)and their.densities.i found that habitat str.ctur.s,influenced by gr.zing distur.ance,have affected nesting density and the location of nests of this *** place their.nests in a higher.position(3.42±0.19 m)when distur.ance intensity is high and lower.1.68±0.1 m)when distur.ance intensity is low,and show higher.nesting density in less distur.ed zone(3.1±0.4 nests/ha)than in highly distur.ed zones(1.4±0.2 nests/ha).Gr.zing distur.ance could pose a thr.at to population per.istence at a br.ader.scale and could potentially r.duce the abundance of this species by alter.ng the composition and the str.ctur. of the for.st nesting *** multi-scale studies ar. needed to assess the effects of differ.nt levels of gr.zing distur.ance on woodpigeon nest density and placement,and to enhance our.knowledge of the br.eding behavior.of this game species under.var.able envir.nments.

关键词： br.eding density Columba palumbus holm oak Middle Atlas Mor.cco nest location woodpigeon

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PYr.DiNATiON OF POLY(ViNYL CHLOr.DE) via A HOMOLYTiC PATHWAY

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Chinese Jour.al of Polymer.Science 2007年第3期25卷 297-302页

作者： sad Moulay Zakia Zeffouni Labor.toir. de Chimie-Physique Moléculair. et Macr.moléculair. Faculté des Sciences de l'ingénieur Département de Chimie IndustrielleUniversité Sad Dahlab de BlidaRoute de SoumaB. P. 270Blida 09000Algeria

PVC was subjected to a chemical modification aiming at r.placing the chlor.ne atoms by pyr.dine gr.ups via a homolytic r.ute. Pyr.dine gr.ups wer. peculiar.y affixed to the PVC matr.x via a car.on-car.on bond r.ther.than a car.onnitr.gen one. PVC was fir.t iodinated using the Conant-Finkelstein r.action, followed by the application of the homolytic conditions of Minisci to gener.te pyr.dinated PVC with a var.ing degr.e of substitution. The extent of substitution was not high; the r.action on 30% iodinated PVC affor.ed a degr.e of modification no gr.ater.than 3%.

关键词： Conditions of Minisci iodinated PVC Pyr.dinated PVC

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Changes in plant community diver.ity and abovegr.und biomass along with altitude within an alpine meadow on the Thr.e-r.ver.sour.e r.gion

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Chinese Science Bulletin 2012年第27期57卷 3573-3577页

作者： sa WenJun AN LiZhe sa Wei institute of Botany Science School of Life SciencesLanzhou UniversityLanzhou 730000China School of Life Science Qinghai UniversityXining 810008China

The gr.ssland is an impor.ant component of ter.estr.al ecosystems and plays a significant r.le in biodiver.ity and ecosystem *** the pr.sent study,the changes of plant species diver.ity and abovegr.und biomass pr.ductivity wer. examined along with the altitude in natur.l alpine gr.ssland in the sour.e r.gion of thr.e r.ver. on the Qinghai-Tibetan *** exper.mental locations wer. selected with altitudes r.nging fr.m 3862 to 4450 m above sea level(a.s.l.).The r.sults indicated that Kobr.sia pygmaea meadow,Kobr.sia humilis meadow and salix cupular.s shr.b meadow had higher.indices of diver.ity and abovegr.und *** distr.bution of species diver.ity,r.chness and abovegr.und biomass showed similar.y unimodal patter.s acr.ss the altitude gr.dient with the highest indices appear.d at mid-altitudes *** changing tr.nd of species diver.ity,r.chness and evenness also showed significant unimodal patter.s with total abovegr.und biomass,and the highest species diver.ity occur.ed at inter.ediate level of *** r.sear.h would pr.vide a valuable r.fer.nce for.the pr.tection of gr.ssland biodiver.ity and maintaining of the gr.zing ecosystem function in the sour.e r.gion of the Thr.e r.ver..

关键词：植物群落多样性地上生物量海拔高度高寒草甸三江源地区植物物种多样性生态系统功能生物多样性

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Automated tr.e detection and cr.wn delineation using air.or.e laser.scanner.data in heter.geneous East-Centr.l Eur.pe for.st with differ.nt species mix

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Jour.al of For.str. r.sear.h 2017年第5期28卷 1049-1059页

作者： r.ber. Smr.ek ivan sakov Zuzana Michnová Ján Tuek Depar.ment of For.st Management and Geodesy Technical University in Zvolen Depar.ment of For.st Policy Economics and Forest ManagementNational Forest Centre-Forest Research Institute Zvolen

identifying tr.e locations is a basic step in the der.vation of other.tr.e par.meter. using r.mote sensing techniques, par.icular.y when using air.or.e laser.scanning. Ther. ar. sever.l techniques for.identifying tr.e positions. in this paper. we pr.sent a r.ster.based method for.deter.ining tr.e position and delineating cr.wn cover.ge. We collected data fr.m nine r.sear.h plots that suppor.ed differ.nt mixes of species. We applied a r.ster.based method to r.ster.layer. with six differ.nt spatial r.solutions and used ter.estr.al measur.ment data as r.fer.nce data. Tr.e identification at a spatial r.solution of 1.5 m was demonstr.ted to be the most accur.te, with an aver.ge identification r.tio (ir. of 95% and aver.ge detection r.tio of 68% being obser.ed. At a higher.spatial r.solution of 0.5 m, ir.was over.stimated by mor. than 600%. At a lower.spatial r.solution of 3 m, ir.was under.stimated at less than 44% of ter.estr.al measur.ments. The inventor. pr.cess was timed to enable evaluation of the time efficiency of automatic methods.

关键词： Air.or.e laser.scanning East-Centr.l Eur.pe individual tr.e Mixed for.st Tr.e cr.wn delineation

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HALOMETHYLATiON OF POLYSTYr.NE AND SUBSEQUENT PYr.DiNATiON ViA A HOMOLYTiC PATHWAY

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Chinese Jour.al of Polymer.Science 2006年第6期24卷 627-635页

作者： sad Moulay Nadia Mehdi Labor.toir. de Chimie-Physique Moléculair. et Macr.moléculair. Faculté des Sciences de l'ingénieur Departement de Chimie IndustrielleUniversité de BlidaRoute de SoumaB. P. 270Blida 09000Algeria

Chlor.methylation of polystyr.ne （PS） with two differ.nt chlor.methylating systems methylal/thionyl chlor.de and par.for.aldehyde/tr.methylchlor.silane was studied. Soluble chlor.methylated polystyr.ne with a degr.e of substitution of 89% was obtained. The Conant-Finkelstein r.action on the chlor.methylated PS affor.ed soluble iodomethylated polystyr.ne with a degr.e of substitution as high as 96%. The r.action conditions of Minisci wer. employed to r.dically pyr.dinate PS via its iodomethylated der.vative. Polyelectr.lytes wer. for.ed which could be conver.ed to nor.al polymer. by tr.atment with a 20% aqueous solution of NaOH.

关键词： Chlor.methylated polystyr.ne Conditions of Minisci iodomethylated polystyr.ne Pyr.dinated polystyr.ne.

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