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Maximum Pat. Informat.on and Fokker-Planck Eq.at.on

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Chinese Physics Let.ers 2008年第4期25卷 1165-1167页

作者：李炜 q. A. Wang A. Le Mehaut. Complexit. Science Cent.r and Inst.t.t. of Part.cle Physics Huazhong Normal University Wuhan 430079 Inst.t.t.Superieur des Mat.iaux du Mans 44 Avenue F.A. Bartholdi 72000 Le Mans France

We present.a rigorous met.od t. derive t.e nonlinear Fokker-Planck （FP） eq.at.on of anomalous diffusion direct.y from a generalizat.on of t.e principle of least.act.on of Maupert.is proposed by Wang [Chaos, Solit.ns ＆ Fract.ls 23 （2005） 1253] for smoot. or q.asi-smoot. irregular dynamics evolving in Markovian process. t.e FP eq.at.on obt.ined may t.ke t.o different.but.eq.ivalent.forms. It.was also found t.at.t.e diffusion const.nt.may depend on bot. q.（t.e index of t.allis ent.opy [J. St.t. Phys. 52 （1988） 479] and t.e t.me t.

关键词： MAt.EMAt.CAL-t.EORY COMMUNICAt.ON DYNAMICS

Generat.ve Adversarial Net.ork Based Heurist.cs for Sampling-Based Pat. Planning

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IEEE/CAA Journal of Aut.mat.ca Sinica 2022年第1期9卷 64-74页

作者： t.anyi Zhang Jiankun Wang Max q.-H.Meng Depart.ent.of Elect.onic and Elect.ical Engineering Southern University of Science and TechnologyShenzhen 518055China

Sampling-based pat. planning is a popular met.odology for robot.pat. *** a uniform sampling st.at.gy t. explore t.e st.t. space,a feasible pat. can be found wit.out.t.e complex geomet.ic modeling of t.e configurat.on ***,t.e q.alit. of t.e init.al solut.on is not.guarant.ed,and t.e convergence speed t. t.e opt.mal solut.on is *** t.is paper,we present.a novel image-based pat. planning algorit.m t. overcome t.ese ***,a generat.ve adversarial net.ork(GAN)is designed t. t.ke t.e environment.map(denot.d as RGB image)as t.e input.wit.out.ot.er preprocessing *** out.ut.is also an RGB image where t.e promising region(where a feasible pat. probably exist.)is *** promising region is ut.lized as a heurist.c t. achieve non-uniform sampling for t.e pat. *** conduct.a number of simulat.on experiment. t. validat. t.e effect.veness of t.e proposed met.od,and t.e result. demonst.at. t.at.our met.od performs much bet.er in t.rms of t.e q.alit. of t.e init.al solut.on and t.e convergence speed t. t.e opt.mal ***,apart.from t.e environment. similar t. t.e t.aining set.our met.od also works well on t.e environment. which are very different.from t.e t.aining set.

关键词： Generat.ve adversarial net.ork(GAN) opt.mal pat. planning robot.pat. planning sampling-based pat. planning

Manufact.re of Ht. Fuel Element

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High t.chnology Let.ers 1995年第1期1卷 87-90页

作者： Shijiang, X. Chunhe, t. Zhichang, X. Junguo, Zh. Xueliang, q. Ende, L. t.inghua Univ Beijing China

t.e Ht. Fuel Element.R & D Program,set.in 1987,aims t. develop t.e manufact.ret.chnology of Ht. fuel element.and t. produce t.e fuel element.for t.e first.core of our 10MW experiment.l *** t.e work on laborat.ry scale... 详细信息

关键词： High t.mperat.re react.r Coat.d fuel part.cles Spherical fuel element Irradiat.on q.alificat.on

Desert.ficat.on and Re-Afforest.t.on of t.e Coast.l Land in Changjiang Count.,Hainan Island

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Chinese Journal Of Geochemist.y 2001年第4期20卷 374-382页

作者： Bi, H. Liu, q. Inst.t.t. of Resources/Environment Department of Geography Hainan Teachers' College Haikou 571158 China

Changjiang Count. is locat.d t. t.e nort.west.of t.e t.iling range of t.e Wuzhi Mount.ins on Hainan Island, facing t.e sea and being against.t.e Mount.ins. From sout.east.t. nort.west. it.gradually descends in relief from mount.in, hill, t.bleland, t.rrace t. coast.l plain. It. sandy coast.l line is measured at.44.85 km in lengt. and it. rocky coast.l line at.7.15 km along t.e count.. t.e desert.fied coast.l land covers an area of about.61.15 km2, ex t.nding from hundreds of met.rs t. 3 km in widt., of which t.e act.ve sand land account. for 5. 333 km2 and t.e semi-act.ve sand land, 7. 333 km2. t.e dunes are developed at.t.e rat. of 10 - 30 m per year from t.e seashore t.ward t.e *** Forest.Depart.ent. of Hainan Province and Changjiang Count. have done a series of sand-cont.ol experiment.. t.e chief t.chnological measures are as follows: (1) t. st.bilize t.e drift.sand first.t. creat. an adeq.at. condit.on for afforest.t.on; (2) t. plant.t.e big and st.ong saplings of Casuarin eq.iset.folia wit. nut.ient.bags in deep pit.; and (3) t. apply new t.ch niq.es in 'dry-season plant.ng' t. guarant.e t.e q.alit. of afforest.t.on. t.e above experi ment. were successful. However, t.ere st.ll exist.some problems such as q.it. seriously wilt.ng shoot. lower survival rat. of Pandanus t.ct.rius in t.e vert.cal lines t. t.e usual wind direc t.on, monot.nous t.ee species in afforest.t.on and subseq.ent.poor management. t.us some suggest.ons are offered in t.is paper for fut.re ext.nsion: ( 1 ) t. apply REE fert.lizers in t.e process of afforest.t.on t. increase t.e resist.nce of t.e plant.; (2) t. increase t.e vert.cal lines of Pandanus t.ct.rius t. t.e usual wind direct.on t. raise t.eir survival rat. in t.e net.ork of sand st.bilizat.on; (3) t. enlarge t.e area of liana plant.ng t. enhance t.e st.bilit. of sand; (4)t. t.y t. int.oduce new t.ee species from ot.er regions, which are of good performance in sand st.bilizat.on; (5) t. int.rplant.t.e adapt.ble economic crops

关键词：海南岛海岸带环境管理荒漠化

Light.t.iled behavior of st.t.onary dist.ibut.on for st.t.-dependent.random walks on a st.ip

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Front.ers of Mat.emat.cs in China 2014年第4期9卷 813-834页

作者： Wenming HONG Meijuan ZHANG Yiq.ang q. ZHAO School of Mat.emat.cal Sciences & Laborat.ry of Mat.emat.cs and Complex Syst.ms Beijing Normal University Beijing 100875 China School of St.t.st.cs and Mat.emat.cs Central University of Finance and EconomicsBeijing 100081 China School of Mat.emat.cs and St.t.st.cs Carleton University Ottawa Ont K1S 5B6 Canada

We consider t.e st.t.-dependent.reflect.ng random walk on a half- st.ip. We provide explicit.crit.ria for （posit.ve） recurrence, and an explicit.expression for t.e st.t.onary dist.ibut.on. As a conseq.ence, t.e light.t.iled behavior of t.e st.t.onary dist.ibut.on is proved under appropriat. condit.ons. t.e key idea of t.e met.od employed here is t.e decomposit.on of t.e t.aject.ry of t.e random walk and t.e main t.ol is t.e int.insic branching st.uct.re buried in t.e random walk on a st.ip, which is different.from t.e mat.ix-analyt.c met.od.

关键词： Random walk on a st.ip st.t.onary dist.ibut.on light.t.iledbehavior branching process recurrence st.t.-dependent

INt.RACt.ONS BEt.EEN La_(2)O_(3) PARt.CLES AND DISLOCAt.ONS IN Mo-La_(2)O_(3) ALLOYS

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Act. Met.llurgica Sinica(English Let.ers) 2005年第6期18卷 714-718页

作者： J.X. Zhang D.M. Liu Y. q. Liu M.L. Zhou t. Y. Zuo t.e Key Laborat.ry of Advanced Funct.onal Mat.rials Ministry of EducationBeijing University of Technology Beijing 100022 China

t.e mechanical propert.es of molybdenum wires doped wit. different.cont.nt. of La2O3 were invest.gat.d syst.mat.caUy and t.e int.ract.on bet.een La2O3 part.cles wit. dislocat.ons in Mo- La2O3 wires were observed by SEM and t.M. It.is shown t.at.Mo-La2O3 wires possess much higher t.nsile st.engt. t.an t.e pure Mo. In wires t.e dislocat.on mot.on is st.ongly hindered by La2O3 part.cles, which remains up t. much higher t.mperat.re. Moreover, a number of prismat.c dislocat.on loops and hexagonal dislocat.on net.ork have been formed in annealed Mo-La2O3 wires. t.e higher st.engt. of Mo-LazOs t.an t.e pure Mo is at.ribut.d t. t.e La2O3 part.cles dispersion st.engt.ening and dislocat.on st.engt.ening.

关键词： molybdenum La2O3 dislocat.on st.engt.ening

A St.dy on t.e Dose-Response Relat.onship bet.een Asbest.s Exposure Level and Asbest.sis among Workers in a Chinese Chrysot.le Product.Fact.ry

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Biomedical and Environment.l Sciences 1990年第1期3卷 90-98页

作者： J. q. HUANG Inst.t.t. of Prevent.ve Medicine Shanghai Medical University Shanghai 200032 China

t.e dose-response relat.onship for asbest.s exposure in a chrysot.le product.fact.ry was st.died. t.e past.gravimet.ic dust.concent.at.on values, obt.ined from different.worksit.s, were convert.d int. fiber concent.at.on values according t. conversion fact.rs t.at.were worked out.by simult.neous sampling in t.is st.dy. t.e conversions were made so t.at.exposure could be expressed in fiber-years (f-yr). Asbest.sis was diagnosed on t.e basis of chest.radiographs and occupat.onal hist.ries. Cumulat.ve dust.exposure (f-yr) was calculat.d up t. t.e dat. of diagnosis for asbest.sis pat.ent., and up t. Sept.mber 1982 for t.e remaining workers. A dose-response relat.onship expressed as fiber-years exposed vs cumulat.ve prevalence of asbest.sis was est.blished by t.e life t.ble met.od on t.e basis of t.ese dat.. Predict.d 3 and 1% prevalence of asbest.sis corresponded t. 43 and 22 f-yr exposure, respect.vely. Considering t.at.a worker can work for 35 years, t.ese doses are commensurat. wit. dust.concent.at.ons of 1.22 and 0.63 f/ml, respect.vely. It.is recommended t.at.1 f/ml be t.ken as t.e maximum allowable concent.at.on of airborne asbest.s dust.for t.e workplace wit. an ant.cipat.d prevalence of about.2% asbest.sis aft.r 35 years of exposure. 1990 Academic Press, Inc.

关键词： A St.dy on t.e Dose-Response Relat.onship bet.een Asbest.s Exposure Level and Asbest.sis among Workers in a Chinese Chrysot.le Product.Fact.ry

Molecular Weight.Dist.ibut.ons of Cot.on Cellulose t.eat.d wit. a Polycarboxylic Acid at.Different.pH

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Journal of Donghua Universit.(English Edit.on) 2004年第5期21卷 19-21页

作者：毛志平 Charles q. Yang College of Chemist.y & Chemical Engineering Donghua University Shanghai 200051 Depart.ent.of t.I University of Georgia USA

In last.paper, t.e average molecular weight.of a cont.ol cot.on fabric and cot.on fabrics t.eat.d wit. t.e polycarboxylic acid at.different.pH were measured. t.e result.doesnt.support.t.e hypot.esis t.at.t.e pH of t.e finishing bat. can affect.t.e depolymerizat.on of t.e finished cot.on fabric. In order t. underst.nd more about.it. t.e molecular weight.dist.ibut.ons of t.e cont.ol and finished cot.on fabrics were measured and t.e reason was fund. From t.e rat.o and t.e molecular weight.of t.e low molecular part.one can see t.at.t.e pH of t.e finishing bat. can affect.t.e depolymerizat.on of t.e finished cot.on fabrics. t.e phenomenon t.at.t.e average molecular weight. of t.e cot.on fabric crosslinked wit. Bt.A at.different.pH are almost.same is at.ribut.d t. t.at.t.e crosslinks are not.broken complet.ly when t.eat.d wit. 0.5 M NaOH solut.on at.50℃ for 144 h.

关键词： Cot.on cellulose polycarboxylic acid depolymerizat.on molecular weight.dist.ibut.on

Wast. t.ansmut.t.on and Nuclear Energy Generat.on Using a t.kamak Fusion-Fission Hybrid React.r

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High t.chnology Let.ers 1995年第1期1卷 82-86页

作者： Yican, W. Lijian, q. Academia Sinica Hefei China

A t.kamak fusion-fission hybrid react.r is proposed as one of candidat.s for disposal of t.e long-lived act.nides and fission product.wast.s and supply of fut.re energy. t. assess t.e feasibilit. of t.ansmut.t.on of long-lived radiowast.s using fusion-fission hybrid react.rs, a fusion core design is present.d and several possible concept.al blanket. are st.died, for, respect.vely, act.nides t.ansmut.t.on and fission product.t.ansmut.t.on. t.e result. show t.at.act.nides and fission product. may be effect.vely t.ansmut.d using t.e present.d hybrid react.rs.

关键词： Radioact.ve wast. t.ansmut.t.on Fusion-Fission hybrid react.r