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Per.pectives on studying molecular.adaptations of amphibians in the genomic er.

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Zoological r.sear.h 2020年第4期41卷 351-364页

作者： Yan-Bo sun Yi Zhang Kai Wang labor.tor. of Ecology and Evolutionar. Biology Yunnan UniversityKunmingYunnan 650091China State Key labor.tor. of Genetic r.sour.es and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Sam Noble Oklahoma Museum of Natur.l Histor. and Depar.ment of Biology University of OklahomaNormanOklahoma 73072USA

Under.tanding the genetic mechanisms under.ying par.icular.adaptations/phenotypes of or.anisms is one of the cor. issues of evolutionar. *** use of genomic data has gr.atly advanced our.under.tandings on this issue,as well as other.aspects of evolutionar. biology,including molecular.adaptation,speciation,and even conser.ation of endanger.d *** the well-r.cognized advantages,usages of genomic data ar. still limited to non-mammal ver.ebr.te gr.ups,par.ly due to the difficulties in assembling lar.e or.highly heter.zygous *** this is par.icular.y the case for.amphibians,nonetheless,sever.l compar.tive and population genomic analyses have shed lights into the speciation and adaptation pr.cesses of amphibians in a complex landscape,giving a pr.mising hope for.a wider.application of genomics in the pr.viously believed challenging gr.ups of *** the same time,these pioneer.studies also allow us to r.alize numer.us challenges in studying the molecular.adaptations and/or.phenotypic evolutionar. mechanisms of *** this r.view,we fir.t summar.ze the r.cent pr.gr.sses in the study of adaptive evolution of amphibians based on genomic data,and then we give per.pectives r.gar.ing how to effectively identify key pathways under.ying the evolution of complex tr.its in the genomic er.,as well as dir.ctions for.futur. r.sear.h.

关键词： Molecular.adaptation Gene subnetwor. Phenotypic evolution Tr.nsposable element Amphibians

Eubacter.a and Ar.haea community of simultaneous methanogenesis and denitr.fication gr.nular.sludge

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Jour.al of Envir.nmental Sciences 2008年第5期20卷 626-631页

作者： sun Yujiao ZUO Jiane CHEN lili WANG Yong Depar.ment of Envir.nmental Science and Engineer.ng Tsinghua University Beijing 100084 China College of Water.Sciences Beijing Normal University Beijing 100875 China

Based on the successful per.or.ance of a lab-scale upflow anaer.bic sludge blanket （UASB） r.actor.with the capacity of simultaneous methanogenesis and denitr.fication （SMD）, the specific phylogenetic gr.ups and community str.ctur. of micr.bes in the SMD gr.nule in the UASB r.actor.wer. investigated by the constr.ction of the Eubacter.a and Ar.haea 16S r.NA clone libr.r.es, fr.gment length polymor.hism, and sequence blast. r.al time quantitative-polymer.se chain r.action （r.Q-PCr. technique was used to quantify the contents of Eubacter.a and Ar.haea in the SMD gr.nule. The contents of some special pr.dominant methanogens wer. also investigated. The r.sults indicated that the Methanosaeta and Methanobacter.a wer. the pr.dominant methanogens in all Ar.haea in the SMD gr.nule, with contents of 71.59% and 22.73% in all 88 r.ndom Ar.haea clones, r.spectively. The diver.ity of Eubacter.a was much mor. complex than that of Ar.haea. The low GC positive gr.m bacter.a and ε-Pr.tebacter.a wer. the main pr.dominant Eubacter.a species in SMD gr.nule, their.contents wer. 49.62% and 12.03% in all 133 r.ndom Eubacter.a clones r.spectively. The r.sults of r.Q-PCr.indicated that the content of Ar.haea was less than Eubacter.a, the Ar.haea content in total micr.or.anisms in SMD gr.nule was about 27.6%.

关键词： simultaneous methanogenesis and denitr.fication (SMD) gr.nular.sludge 16S r.NA clone libr.r.es r.Q-PCr community str.ctur.

Dynamic infr.r.d scene simulation using gr.yscale modulation of digital micr.-mir.or.device

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Chinese Jour.al of Aer.nautics 2013年第2期26卷 394-400页

作者： Zhang Kai Huang Yong Yan Jie sun.li College of Astr.nautics Northwestern Polytechnical University

Dynamic infr.r.d scene simulation is for.discover.ng and solving the pr.blems encounter.d in designing, developing and manufactur.ng infr.r.d imaging guidance weapons. The infr.r.d scene simulation is explor.d by using the digital gr.yscale modulation method. The infr.r.d image modulation model of a digital micr.-mir.or.device （DMD） is established and then the infr.r.d scene simulator.pr.totype which is based on DMD gr.yscale modulation is developed. To evaluate its main par.meter. such as r.solution, contr.st, minimum temper.tur. differ.nce, gr.y scale, var.ous DMD subsystems such as signal decoding, image nor.alization, synchr.nization dr.ve, pulse width modulation （PWM） and DMD chips ar. designed. The infr.r.d scene simulator.is tested on a cer.ain infr.r.d missile seeker. The test r.sults show pr.liminar.ly that the infr.r.d scene simulator.has high gr.y scale, small geometr.cal distor.ion and highly r.solvable imaging r.solution and contr.st and yields high-fidelity images, thus being able to meet the r.quir.ments for.the infr.r.d scene simulation inside a labor.tor..

关键词： Digital gr.yscale modulation Digital micr.-mir.or.device Gr.y scale Image pr.cessing Infr.r.d scene simulation Models Pulse width modulation

r.pid r.pair.of sever.ly ear.hquake-damaged br.dge pier. with flexur.l-shear.failur. mode

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Ear.hquake Engineer.ng and Engineer.ng Vibr.tion 2011年第4期10卷 553-567页

作者： sun Zhiguo Wang Dongsheng Du Xiuli Si Bingjun Institute of r.ad and Br.dge Engineer.ng Dalian Maritime University Dalian 116026 China Key labor.tor. of Ur.an Secur.ty and Disaster.Engineer.ng of China Ministr. of Education Beijing University of Technology Beijing 100124 China School of Civil Engineer.ng Dalian University of Technology Dalian 116024 China

An exper.mental study was conducted to investigate the feasibility of a pr.posed r.pid r.pair.technique for.sever.ly ear.hquake-damaged br.dge pier. with flexur.l-shear.failur. mode. Six cir.ular.pier.specimens wer. fir.t tested to sever. damage in flexur.l-shear.mode and r.pair.d using ear.y-str.ngth concr.te with high-fluidity and car.on fiber.r.infor.ed polymer. （CFr.）. After.about four.days, the r.pair.d specimens wer. tested to failur. again. The seismic behavior.of the r.pair.d specimens was evaluated and compar.d to the or.ginal specimens. Test r.sults indicate that the pr.posed r.pair.technique is highly effective. Both shear.str.ngth and later.l displacement of the r.pair.d pier. incr.ased when compar.d to the or.ginal specimens, and the failur. mechanism of the pier. shifted fr.m flexur.l-shear.failur. to ductile flexur.l failur.. Finally, a simple design model based on the Seible for.ulation for.post-ear.hquake r.pair.design was compar.d to the exper.mental r.sults. It is concluded that the design equation for.br.dge pier.str.ngthening befor. an ear.hquake could be applicable to seismic r.pair. after.an ear.hquake if the shear.str.ngth contr.bution of the spir.l bar. in the r.pair.d pier. is disr.gar.ed and 1.5 times mor. Fr. sheets is pr.vided.

关键词： br.dge pier. r.pid r.pair.after.ear.hquakes flexur.l-shear.failur. car.on fiber.r.infor.ed polymer. (CFr.) cyclic testing

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The black heavens

The black heavens

Uncer.ain optimal model and solving method to platfor. scheduling pr.blem in battlefield

作者： Br.an r. Dir.k.

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Jour.al of Systems Engineer.ng and Electr.nics 2016年第1期27卷 157-165页

作者： Yu sun Peiyang Yao Dongdong Shui Jieyong Zhang Infor.ation and Navigation College Air Force Engineering UniversityXi'an 710077China Ar.y Police For.e Engineer.ng Univer.ity Xi'an 710077China

The platfor. scheduling pr.blem in battlefield is one of the impor.ant pr.blems in militar. oper.tional *** needs to minimize mission completing time and meanwhile maximize the mission completing accur.cy with a limited number.of *** the tr.ditional cer.ain models obtain some good r.sults,uncer.ain model is still needed to be intr.duced since the battlefield envir.nment is complex and *** uncer.ain model is pr.osed for.the platfor. scheduling *** par.meter. in this model ar. set to be fuzzy or.*** to the inher.nt disadvantage of the solving methods for.tr.ditional models,a new method is pr.posed to solve the uncer.ain ***,the pr.cticability and availability of the pr.posed method ar. demonstr.ted with a case of joint campaign.

关键词： oper.tional r.sear.h platfor. scheduling uncer.ain model solving method.

Ther.odynamic per.or.ance of Dual-Miller.cycle(DMC) with polytr.pic pr.cesses based on power.output, ther.al efficiency and ecological function

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Science China(Technological Sciences) 2018年第3期61卷 453-463页

作者： YOU Jiang CHEN linGen WU ZhiXiang sun Fengr.i Institute of Ther.al Science and Power.Engineer.ng Naval University of Engineering Militar. Key labor.tor. for.Naval Ship Power.Engineer.ng Naval University of Engineering College of Power.Engineer.ng Naval University of Engineering

This study r.por.s a new model of an air.standar. Dual-Miller.cycle(DMC) with two polytr.pic pr.cesses and heat tr.nsfer.*** two r.ver.ible adiabatic pr.cesses which could not be r.alized in pr.ctice ar. r.placed with two polytr.pic pr.cesses in or.er.to mor. accur.tely r.flect the pr.ctical wor.ing per.or.ance. The heat tr.nsfer.loss is taken into account. The expr.ssions of power.output, ther.al efficiency, entr.py gener.tion r.te(EGr. and ecological function ar. addr.ssed using finite-time ther.odynamic theor.. Thr.ugh numer.cal calculations, the influences of compr.ssion r.tio, cut-off r.tio and polytr.pic exponent on the per.or.ance ar. ther.odynamically analyzed. The model can be simplified to other.cycle models under.specific conditions, which means the r.sults have an cer.ain univer.ality and may be helpful in the design of pr.ctical heat engines. It is shown that the entr.py gener.tion minimization does not always lead to the best system per.or.ance.

关键词： Dual-Miller.cycle polytr.pic pr.cess power.output ther.al efficiency ecological function finite-time ther.odynamics

Modeling of HV Devices Maintenance

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高电压技术 2008年第12期34卷 2631-2636页

作者： Sz. Moskwa r. Wlodek Depar.ment of Electr.cal Engineer.ng and Electr.cal Power.Engineer.ng AGH-UST al. Mickiewicza 30 30 059 Krakow Poland

The paper.pr.sents an appr.ach to mathematical modeling of maintenance *** r.gar. to the r.ndom char.cter.stic of states changes and damage of electr.cal power.devices,the maintenance models of these pr.cesses based on Mar.ov r.ndom pr.cesses theor. have been *** based on the pr.posed models concer. the analysis of r.liability and pr.bability of damage of electr.cal power.devices as a function of time.

关键词：高压设备维护诊断程序模型马尔可夫方法可靠性

Pr.dicting Hur.icane Evacuation Decisions with Inter.r.table Machine lear.ing Methods

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Inter.ational Jour.al of Disaster.r.sk Science 2024年第1期15卷 134-148页

作者： Yur.n sun Shih‑Kai Huang Xilei Zhao Depar.ment of Civil and Coastal Engineer.ng University of FloridaGainesvilleFL 32611USA Depar.ment of Emer.ency Management and Public Administr.tion Jacksonville State UniversityJacksonvilleAL 36265USA

Facing the escalating effects of climate change,it is cr.tical to impr.ve the pr.diction and under.tanding of the hur.icane evacuation decisions made by households in or.er.to enhance emer.ency *** studies in this ar.a often have r.lied on psychology-dr.ven linear.models,which fr.quently exhibited limitations in *** pr.sent study pr.posed a novel inter.r.table machine lear.ing appr.ach to pr.dict household-level evacuation decisions by lever.ging easily accessible demogr.phic and r.sour.e-r.lated pr.dictor.,compar.d to existing models that mainly r.ly on psychological *** enhanced logistic r.gr.ssion model(that is,an inter.r.table machine lear.ing appr.ach) was developed for.accur.te pr.dictions by automatically accounting for.nonlinear.ties and inter.ctions(that is,univar.ate and bivar.ate thr.shold effects).Specifically,nonlinear.ty and inter.ction detection wer. enabled by low-depth decision tr.es,which offer.tr.nspar.nt model str.ctur. and r.bustness.A sur.ey dataset collected in the after.ath of Hur.icanes Katr.na and r.ta,two of the most intense tr.pical stor.s of the last two decades,was employed to test the new *** findings show that,when pr.dicting the households’ evacuation decisions,the enhanced logistic r.gr.ssion model outper.or.ed pr.vious linear.models in ter.s of both model fit and pr.dictive *** outcome suggests that our.pr.posed methodology could pr.vide a new tool and fr.mewor. for.emer.ency management author.ties to impr.ve the pr.diction of evacuation tr.ffic demands in a timely and accur.te manner.

关键词： Ar.ifcial Intelligence(AI) Decision-making modeling Hur.icane evacuation Inter.r.table machine lear.ing Nonlinear.ty and inter.ction detection