检索结果-南通市图书馆

Bionic Design and Finite Element Analysis of Elbow in Ice Tr.nsp.r.ation Cooling System

在线全文

学校读者我要写书评

暂无评论

Jour.al of Bionic engineering 2010年第3期7卷 301-306页

作者： Dejun Miao~(1,2), Xiuhua Sui~3. Linjing Xiao~3.1. Key Labor.tor. of Mine Hazar. p.evention and Contr.l (Ministr. of Education, china), shandong university of Science and Technology, {3. 266510, p. r. china 2. school of Ar.hitectur., Tsinghua university, Beijing 100084, p. r. china 3. College of Mechanical and Electr.nic engineering, shandong university of Science and Technology, {3. 266510, p. r. china [a] Key Labor.tor. of Mine Hazar. p.evention Contr.l (Ministr. of Education China) Shandong University of Science Technology Qingdao 266510 P. R. China [b] School of Architecture Tsinghua University Beijing 100084 P. R. China [c] College of Mechanical Electr.nic engineering Shandong University of Science Technology Qingdao 266510 P. R. China

With the incr.ase in mining dep.h, mine heat har. has ap.ear.d to be mor. p.ominent. The mine heat har. could be r.solvedor.r.duced by ice r.fr.ger.tion. Thus, ice tr.nsp.r.ation thr.ugh p.p.line becomes a cr.tical p.oblem; typ.cally flowr.sistance occur. in the elbow. In the p.esent study, accor.ing to the analysis of the sur.ace mor.0}ology of fish scale, abiomimetic functional sur.ace str.ctur. for.the inter.or.wall of elbow is designed. Based on the theor. of liquid-solid two p.aseflow, a CFD numer.cal simulation of ice-water.mixtur. flowing thr.ugh the elbow is car.ied out using finite element *** exp.r.ments of p.essur. dr.p.and flow r.sistance for.both bionic and common elbows ar. conducted to test theeffect of the bionic elbow on flow r.sistance r.duction. It is found that with the incr.ase in the ice mass fr.ction in the ice-water.ixtur., the effect of bionic elbow on r.sistance r.duction becomes mor. obvious.

关键词： bionic elbow two p.ase flow ice tr.nsp.r.ation flow r.sistance r.duction p.essur. loss

Online multip.e instance r.gr.ssion

在线全文

学校读者我要写书评

暂无评论

Chinese p.ysics B 2013年第9期22卷 656-661页

作者：王志岗赵增顺张长水 Dep.r.ment of automation Tsinghua UniversityState Key Laboratory of Intelligent Technologie and SystemsTsinghua National Laboratory for Information Science and Technology College of Infor.ation and Electr.cal engineering Shandong University of Science and Technology school of Contr.l Science and engineering Shandong University

The multip.e instance r.gr.ssion p.oblem has become a hot r.sear.h top.c r.cently. Ther. ar. sever.l ap.r.aches to the multip.e instance r.gr.ssion p.oblem, such as Salience, Citation KNN, and MI-Cluster.egr.ss. All of these solutions wor. in batch mode dur.ng the tr.ining step. However. in p.actice, examp.es usually ar.ive in sequence. Ther.for., the tr.ining step.cannot be accomp.ished once. In this p.p.r. an online multip.e instance r.gr.ssion method ＂OnlineMIr. is p.op.sed. OnlineMIr.can not only p.edict the label of a new bag, but also up.ate the cur.ent r.gr.ssion model with the latest ar.ived bag. The exp.r.mental r.sults show that OnlineMIr.achieves good p.r.or.ances on both synthetic and r.al data sets.

关键词： mutip.e instance r.gr.ssion online lear.ing

Numer.cal simulation of p.ofile contr.l by clay p.r.icles after.p.lymer.flooding

在线全文

学校读者我要写书评

暂无评论

p.tr.leum Science 2010年第4期7卷 509-514页

作者： Feng Qihong Shi Shubin Wang Sen Zheng Lu school of p.tr.leum engineering China University of Petroleum Qingdao Shandong 266555 China school of p.tr.leum engineering China University of Petroleum Beijing 102249 China Shengli Oil p.oduction r.sear.h Institute SINOPEC Dongying Shandong 257000 China Bozhong Op.r.tion Comp.ny CNOOC Tianjin 300452 China

A thr.e-dimensional,two-p.ase,five-comp.nent mathematical model has been develop.d to descr.be flow char.cter.stics of clay p.r.icles and flocs in the p.ofile contr.l p.ocess,in which the clay p.r.icle susp.nsion is injected into the for.ation to r.act with r.sidual *** model consider. the r.action of clay p.r.icles with r.sidual p.lymer.ap.ar.nt viscosity of the mixtur.,r.tention of clay p.r.icles and flocs,as well as the decline in p.r.sity and p.r.eability caused by the r.tention of clay p.r.icles and flocs.A finite differ.nce method is used to discr.tize the equation for.each comp.nent in the *** r.nge-Kutta method is used to solve the p.lymer.flow equation,and op.r.tor.sp.itting algor.thms ar. used to sp.it the flow equation for.clay p.r.icles into a hyp.r.olic equation for.convection and a p.r.bolic equation for.diffusion,which effectively ensur.s excellent p.ecision,high sp.ed and good *** numer.cal simulation had been ap.lied successfully in the 4-p.920 unit of the Lamadian Oilfield to for.cast the blocking cap.city of clay p.r.icle susp.nsion and to op.imize the injection p.r.meter..

关键词： Clay p.r.icles flocs detention op.r.tor.sp.itting algor.thms numer.cal simulation

Char.cter.ation and sep.r.tion of Al_(13. sp.cies using gel-filtr.tion chr.matogr.p.y

在线全文

学校读者我要写书评

暂无评论

Science china Chemistr. 2006年第4期49卷 326-331页

作者： CHU Yongbao1,2, GAO Baoyu1, YUE Qinyan1, WANG Yan1 & WANG Shuguang1 1. school of Envir.nmental Science and engineering, shandong {3., Jinan 250100, china 2. College of Mater.al and Envir.nment, qingdao university of Science and Technology, qingdao 266042, china school of Envir.nmental Science and engineering Shandong University Jinan China College of Mater.al and Envir.nment Qingdao University of Science and Technology Qingdao China

A p.lyaluminum chlor.de (p.C) samp.e was p.ep.r.d using a slow alkalinetitr.tion method. The Bio-Gel p.100 gel column chr.matogr.p.ic technique was used to sep.r.te andchar.cter.ze the var.ous for.s of aluminum p.esent in the p.ep.r.d p.C solution. The effluents fr.ma gel column wer. monitor.d using online chemical method: AI-Fer.on timed comp.exationsp.ctr.p.o-tometr. and by ^(27)Al nuclear.magnetic r.sonance (NMr. sp.ctr.scop.. Effects ofdiffer.nt exp.r.mental conditions such as eluent flow r.te, ionic str.ngth and p. on sep.r.tion ofAl_(13. wer. investigated. Exp.r.mental r.sults indicated that molecule size exclusion was not theonly p.r.meter.affecting the column chr.matogr.p.ic sep.r.tion efficiency of Al_(13. but moleculechar.e as well. r.ducing the eluent flow r.te, incr.asing the ionic str.ngth and suitable p.r.sulted in incr.ase in the sep.r.tion efficiency. Exp.r.mental r.sults clear.y indicated that byvar.ing the exp.r.mental conditions, it is p.ssible to p.oduce p.r. Al_(13. sp.cies using a gelcolumn chr.matogr.p.ic technique.

关键词： Al13 sp.cies, column chr.matogr.p.y, p.lyaluminum chlor.de (p.C), sep.r.tion and p.r.fication.

Exp.essed sequence tag analysis and cloning of tr.halose-6-p.osp.ate synthase gene fr.m mar.ne alga Laminar.a jap.nica(p.aeop.yta)

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2012年第6期31卷 139-148页

作者： XUAN Jinsong 1,4,FENG Yanbin 1,WENG Manli 1,ZHAO Ge 1,SHI Jinfeng 1,YAO Jianting 2,WANG Xiuliang 2,GUO Baotai 3.QIAO Lixian 3.DUAN Delin 2,WANG Bin 1 1 The State Key Labor.tor. of p.ant Genomics,Institute of Genetics and Develop.ental Biology,Chinese Academy of Sciences,Beijing 100101,china 2 The State Key Labor.tor. of Mar.ne Biology,Institute of Oceanology,Chinese Academy of Sciences,qingdao 266071,china 3.College of Life Sciences,qingdao Agr.cultur.l university,qingdao 266109,china 4 Dep.r.ment of Biological Science and engineering,school of Chemical and Biological engineering,university of Science and Technology Beijing,Beijing 100083.china 1. The State Key Labor.tor. of p.ant Genomics Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101 China 4. Dep.r.ment of Biological Science and engineering School of Chemical and Biological Engineering University of Science and Technology Beijing Beijing 100083 China 2. The State Key Labor.tor. of Mar.ne Biology Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China 3. College of Life Sciences Qingdao Agricultural University Qingdao 266109 China

A high quality cDNA libr.r. was constr.cted fr.m the br.wn alga Laminar.a jap.nica,with the titer.of 1.2×10 5 p.u/*** aver.ge inser. size of the cDNA libr.r. is about 1.6 *** the cDNA libr.r.,591 cDNA clones wer. r.ndomly selected and *** a r.sult,574 EST(exp.essed sequence tag) sequences wer. *** of the 574 ESTs wer. submitted to the dbEST database section of GenBank with the accession number. fr.m CX942625 to *** cDNA libr.r. was scr.ened with a α-3. p.labeled 453.bp.T p.S gene p.obe,which is a p.r.ial sequence yielded fr.m p.r.0}yr. *** p.sitive cDNA clones wer. scr.ened and the sequencing data showed that these four.cDNA clones cover.d major.ty of *** Tp. cDNA *** p.r.amp.ification,sequencing and assembling,the entir. Or.(op.n r.ading fr.me) sequence of the T p.S gene was obtained,which was named *** encodes a p.otein containing 908 amino acids with a calculated molecular.mass of 101 674 *** LjTp. gene was successfully exp.essed in *** and *** LjTp. gene has p.tential ap.lication both in p.ant br.eding to str.ss toler.nce and in decip.er.ng the T p.S gene function and mechanism to str.ss toler.nce.

关键词： cDNA libr.r. comp.r.tive study exp.essed sequence tag(EST) analysis Laminar.a jap.nica tr.halose-6-p.osp.ate synthase(Tp.) T p.S gene

A Modified Differ.ntial Evolution Algor.thm

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

A Modified Differential Evolution Algorithm

第二十九届中国控制会议

作者： GAO Lin school of automation and Electr.nic engineering,{3. university of Science and Technology,{3. 266042,p.r.china.

Differ.ntial Evolution（DE）is a simp.e and efficient heur.stic algor.thm for.global op.imization over.continuous *** of its outstanding p.r.or.ance,simp.icity and r.mar.able efficiency,DE has being used widely to deal with r.al-life *** DE has some p.oblems such as low p.ecision and p.ematur.ty if the scaling factor.F is not chosen *** this p.p.r.a modified DE algor.thm（sFDE）is p.op.sed which uses an adap.ive scaling factor.sF to r.p.ace the invar.able factor.F in basic *** new algor.thm p.r.or.s better.than the basic DE over.a set of benchmar. functions and a p.actical use for.data r.conciliation shows its effectiveness also.

关键词： DE Adap.ive Scaling Factor

p.H Contr.l and L2 Gain Distur.ance Attenuation of Induction Motor

在线全文

cnki会议

学校读者我要写书评

暂无评论

PCH Control and L2 Gain Disturbance Attenuation of Induction...

第三十届中国控制会议

作者： LIU Jin,YU Haisheng,YU Jinp.ng,SONG Qiang College of automation engineering of qingdao university,{3. 266071,p.r.china

＜正＞Aiming at the p.oblem of induction motor.IM） p.r.meter. uncer.ainty,a novel L2 gain distur.ance attenuation contr.l algor.thm based on p.r.-Contr.lled Hamiltonian（p.H） systems theor. is p.esented for.***,a p.H system model of IM is ***,using inter.onnection and damp.ng assignment,the desir.d state er.or.p.H str.ctur. is assigned to the closed-loop.IM system by the ener.y-shap.ng（ES） p.incip.e when inductance and r.sistance p.r.meter. ar. known and ***,following the idea of field or.entation,the desir.d equilibr.um of the system is *** last,L2 gain distur.ance attenuation technique is ap.lied to the closed-loop.p.H contr.l of IM system when inductance and r.sistance p.r.meter. ar. *** simulation r.sults show that the p.op.sed scheme has a good p.r.or.ance and designed contr.l system has better.r.bustness than ever.befor..

关键词： Induction Motor Sp.ed Contr.l Hamiltonian Systems L2 Gain Distur.ance Attenuation

r.achability r.alization for.a Class of Switched Imp.lsive Contr.l Systems by Means of p.r.odic Switchings

在线全文

cnki会议

学校读者我要写书评

暂无评论

Reachability Realization for a Class of Switched Impulsive C...

第二十六届中国控制会议

作者： Ji Zhijian1,Feng Gang2,Guo Xiaoxia3.1.school of automation engineering,{3. university,{3.,266071,p.r.china2.Dep.r.ment of Manufactur.ng engineering and engineering Management,City university of Hong Kong,Hong Kong,p.r.china3.Dep.r.ment of Mathematics,Ocean university of china,266071,p.r.china

This p.p.r.studies r.achability r.alization for.a class of switched imp.lsive contr.l *** switching sequences ar. designed so that the r.achable subsp.ce of switched imp.lsive contr.l systems is exp.essed in ter.s of the r.achable state sets of the designed switching *** r.sult p.esents a r.lationship.between the r.achable subsp.ce and the r.achable state sets of p.r.odic switching sequences.

关键词： r.achability Contr.llability Switched imp.lsive systems Switching sequence

Modified dynamic data r.ctification with differ.ntial evolution

在线全文

cnki会议

学校读者我要写书评

暂无评论

Modified dynamic data rectification with differential evolut...

2011 Chinese Contr.l and Decision Confer.nce（CCDC）

作者： GAO Lin is with the school of automation and Electr.nic engineering,{3. university of Science and Technology,{3. CO 266042 china

A modified dynamic data r.ctification model is p.op.sed aiming at imp.oving the efficiency of classical one which has the p.oblem that when the var.ance of single measur.ment p.int r.ndom er.or.distr.bution is lar.er.than other.***,a new differ.ntial evolution （DE） algor.thm is ap.lied to solve a dynamic data r.ctification p.oblem with the modified *** p.omising r.sults illustr.te the efficiency of the p.op.sed method and show that it could be used as a r.liable tool for.solving dynamic data r.ctification p.oblems.

关键词： data r.ctification r.ndom er.or DE