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Compr.hensive Evaluation Method for.Tr.ffic Flow Data Quality based on Gr.y Cor.elation Analysis and Par.icle Swar. Optimization

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Jour.al of Systems Science and Systems Engineer.ng 2024年第1期33卷 106-128页

作者： Wei ba baojun Chen Qi Li School of Automation and Electr.cal Engineer.ng Dalian Jiaotong UniversityDalian116028China Faculty of Electr.nic Infor.ation and Electr.cal Engineer.ng Dalian University of TechnologyDalian116023China

Nowadays,data ar. mor. and mor. used for.intelligent modeling and pr.diction,and the compr.hensive evaluation of data quality is getting mor. and mor. attention as a necessar. means to measur. whether.the data ar. usable or.***,the compr.hensive evaluation method of data quality mostly contains the subjective factor. of the evaluator.so how to compr.hensively and objectively evaluate the data has become a bottleneck that needs to be solved in the r.sear.h of compr.hensive evaluation *** or.er.to evaluate the data mor. compr.hensively,objectively and differ.ntially,a novel compr.hensive evaluation method based on par.icle swar. optimization(PSO)and gr.y cor.elation analysis(GCA)is pr.sented in this *** fir.t,an impr.ved GCA evaluation model based on the technique for.or.er.pr.fer.nce by similar.ty to an ideal solution(TOPSIS)is ***,an objective function model of maximum differ.nce of the compr.hensive evaluation values is built,and the PSO algor.thm is used to optimize the weights of the impr.ved GCA evaluation model based on the objective function ***,the per.or.ance of the pr.posed method is investigated thr.ugh par.meter.analysis.A per.or.ance compar.son of tr.ffic flow data is car.ied out,and the simulation r.sults show that the maximum aver.ge differ.nce between the evaluation r.sults and its mean value(MDr.of the pr.posed compr.hensive evaluation method is 33.24%higher.than that of TOPSIS-GCA,and 6.86%higher.than that of *** pr.posed method has better.differ.ntiation than other.methods,which means that it objectively and compr.hensively evaluates the data fr.m both the r.levance and differ.ntiation of the data,and the r.sults mor. effectively r.flect the differ.nces in data quality,which will pr.vide mor. effective data suppor. for.intelligent modeling,pr.diction and other.applications.

关键词： Data quality compr.hensive evaluation par.icle swar. optimization gr.y cor.elation analysis tr.ffic flow data

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A simulation-based softwar. to suppor. the r.al-time oper.tional par.meter. selection of tunnel bor.ng machines

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Under.r.und Space 2024年第1期14卷 176-196页

作者： Yaman Zendaki ba Tr.ng Cao Abdullah Alsahly Steffen Fr.itag Gunther.Meschke Institute for.Str.ctur.l Mechanics Ruhr University BochumBochum 44801Germany Institute for.Str.ctur.l Analysis Karlsruhe Institute of TechnologyKarlsruhe 76131Germany

With the fact that the main oper.tional par.meter. of the constr.ction pr.cess in mechanized tunneling ar. cur.ently selected based on monitor.ng data and engineer.ng exper.ence without exploiting the advantages of computer.methods,the focus of this wor. is to develop a simulation-based r.al-time assistant system to suppor. the selection of oper.tional *** choice of an appr.pr.ate set of these par.meter.(i.e.,the face suppor. pr.ssur.,the gr.uting pr.ssur.,and the advance speed)dur.ng the oper.tion of tunnel bor.ng machines(TBM)is deter.ined by evaluating differ.nt tunneling-induced soil-str.ctur. inter.ctions such as the sur.ace settlement,the associated r.sks on existing str.ctur.s and the tunnel lining *** evaluate soil-str.ctur. behavior.an advanced pr.cess-or.ented numer.cal simulation model based on the finite cell method is *** enable the r.al-time pr.diction capability of the simulation model for.a pr.ctical application dur.ng the advancement of TBMs,sur.ogate models based on the Pr.per.Or.hogonal Decomposition and r.dial basis Functions(POD-r.F)ar. *** pr.posed appr.ach is demonstr.ted thr.ugh sever.l synthetic numer.cal examples inspir.d by the data of r.al tunnel *** developed methods ar. integr.ted into a user.fr.endly application called SMAr. to ser.e as a suppor. platfor. for.tunnel engineer. at constr.ction *** to each user.adjustment of the input par.meter.,i.e.,each TBM dr.ving scenar.o,appr.ximately two million outputs of soil-str.ctur. inter.ctions ar. quickly pr.dicted and visualized in seconds,which can pr.vide the site engineer. with a r.ugh estimation of the impacts of the chosen scenar.o on str.ctur.l r.sponses of the tunnel and above gr.und str.ctur.s.

关键词： Numer.cal simulation Sur.ogate model r.al-time pr.diction Pr.per.or.hogonal decomposition r.dial basis functions TBM oper.tion Smar. constr.ction

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r.cent pr.gr.ss in the r.sear.h on magnesium and magnesium alloy foils:A shor. r.view

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Inter.ational Jour.al of Miner.ls,Metallur.y and Mater.als 2024年第5期31卷 842-854页

作者： Qiuyan Shen Yongxing ba Peng Zhang Jiangfeng Song Bin Jiang Fusheng Pan National Engineer.ng r.sear.h Center.for.Magnesium Alloys Chongqing UniversityChongqing 400044China College of Mater.als Science and Engineer.ng Chongqing UniversityChongqing 400044China National Key Labor.tor. of Advanced Casting Technologies Chongqing UniversityChongqing 400044China

Magnesium and magnesium alloy foils have gr.at potential for.application in batter. anodes,electr.magnetic shielding,optics and acoustics,and biology because of their.excellent specific damping,inter.al dissipation coefficients,magnetic and electr.cal conductivities,as well as high theor.tical specific ***,magnesium alloys exhibit poor.defor.ation ability due to their.hexagonal close-packed cr.stal *** magnesium and magnesium alloy foils with thicknesses of less than 0.1 mm is difficult because of sur.ace oxidation and gr.in gr.wth at high temper.tur.s or.sever. anisotr.py after.cold r.lling that leads to *** methods have been applied to pr.par. magnesium alloy *** include war. r.lling,cold r.lling,accumulative r.ll bonding,electr.c plastic r.lling,and on-line heating *** of magnesium and magnesium alloy foils dur.ng pr.par.tion,such as edge cr.cks and br.akage,ar. impor.ant factor. for.***,the cur.ent status of the r.sear.h on magnesium and magnesium alloy foils is summar.zed fr.m the aspects of foil pr.par.tion,defect contr.l,per.or.ance char.cter.zation,and application *** advantages and disadvantages of differ.nt pr.par.tion methods and defect(edge cr.cks and br.akage)mechanisms in the pr.par.tion of foils ar. identified.

关键词： magnesium alloy foil r.lling defect per.or.ance application

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Physics-based seismic analysis of ancient wood str.ctur.:fault-to-str.ctur. simulation

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Ear.hquake Engineer.ng and Engineer.ng Vibr.tion 2024年第3期23卷 727-740页

作者： ba Zhenning Fu Jisai Wang Fangbo Liang Jianwen Zhang Bin Zhang Long State Key Labor.tor. of Hydr.ulic Engineer.ng Intelligent Constr.ction and Oper.tion (Tianjin University)Tianjin 300350China School of Civil Engineer.ng Tianjin UniversityTianjin 300350China Administr.tive Office of the Summer.Palace Beijing 100091China School of Ar.hitectur. Tianjin UniversityTianjin 300072China

based on the domain r.duction method,this study employs an SEM-FEM hybr.d wor.flow which integr.tes the advantages of the spectr.l element method(SEM)for.flexible and highly efficient simulation of seismic wave pr.pagation in a thr.e-dimensional(3D)r.gional-scale geophysics model and the finite element method(FEM)for.fine simulation of str.ctur.l r.sponse including soil-str.ctur. inter.ction,and per.or.s a physics-based simulation fr.m initial fault r.ptur. on an ancient wood *** ver.fication of the hybr.d wor.flow,a lar.e-scale model of an ancient wood str.ctur. in the Beijing ar.a,The Tower.of Buddhist Incense,is established and its r.sponses under.the 1665 Tongxian ear.hquake and the 1730 Yiheyuan ear.hquake ar. *** r.sults fr.m the simulated gr.und motion and seismic r.sponse of the wood str.ctur. under.the two ear.hquakes demonstr.te that this hybr.d wor.flow can be employed to efficiently pr.vide insight into the r.lationships between geophysical par.meter. and the str.ctur.l r.sponse,and is of gr.at significance towar. accur.te input for.seismic simulation of str.ctur.s under.specific site and fault conditions.

关键词： spectr.l element method finite element method fault-to-str.ctur. simulation physical model domain r.duction method

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The value of toxicological analysis in acute poisoning patients with uncer.ain exposur. histor.es:a r.tr.spective and descr.ptive study fr.m an institute of poisoning

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Wor.d Jour.al of Emer.ency Medicine 2024年第2期15卷 98-104页

作者： Qifang Shi Gen ba Zhenyu Xia Zhengsheng Mao Hao Sun Jinsong Zhang Institute of Poisoning Nanjing Medical UniversityNanjing 211100China Depar.ment of Emer.ency Medicine the First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029China Depar.ment of For.nsic Medicine Nanjing Medical UniversityNanjing 211166China The Key Labor.tor. of Moder. Toxicology of Ministr. of Education Nanjing Medical UniversityNanjing 211166China

baCKGr.UND:In clinical pr.ctice,some patients might not be able or.unwilling to pr.vide a thor.ugh histor. of medication and poison *** aim of this study was to use toxicological analysis to examine the clinical char.cter.stics of patients with acute poisoning whose exposur. histor. was uncer.ain fr.m a toxicological analysis ***:This was a r.tr.spective and descr.ptive study fr.m an institute of *** r.gistr.tion infor.ation and test r.por.s spanning the per.od fr.m Apr.l 1,2020 to Mar.h 31,2022,wer. *** with uncer.ain exposur. histor.es and who under.ent toxicological analysis wer. *** manifestations and categor.es of toxics wer. ***:Among the 195 patients with positive toxicological analysis r.sults,the main causes of uncer.ain exposur. histor. was distur.ance of consciousness(62.6%),unawar.ness(23.6%)and unwillingness or.lack of cooper.tion(13.8%).The pr.dominant clinical manifestations wer. distur.ed consciousness(62.6%),followed by vomiting and nausea(14.4%)and liver.function abnor.alities(8.7%).A compar.son of clinical manifestations between patients with positive and negative(n=99)toxicological analyses r.sults r.vealed significantly differ.nt pr.por.ions of distur.ances in consciousness(63%vs.21%),dizziness(1.5%vs.5.1%),multi-or.an failur.(1.5%vs.7.1%),and local pain(0 vs 4%).The main categor.es of substances involved wer. psychiatr.c medications(23.1%),sedatives(20.5%),insecticides(13.8%),and her.icides(12.8%).CONCLUSION:The clinical manifestations of acute poisoning in patients with an uncer.ain exposur. histor. ar. diver.e and nonspecific,and toxicological analysis plays a pivotal r.le in the diagnosis and differ.ntial diagnosis of such patients.

关键词： Acute poisoning Toxic exposur. Toxicological analysis Clinical manifestation

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For.e Compensation Contr.l for.Electr.-Hydr.ulic Ser.o System with Pump-Valve Compound Dr.ve via QFT-DTOC

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Chinese Jour.al of Mechanical Engineer.ng 2024年第2期37卷 228-246页

作者： Kaixian ba Yuan Wang Xiaolong He Chunyu Wang Bin Yu Yaliang Liu Xiangdong Kong Hebei Pr.vincial Key Labor.tor. of Heavy Machiner. Fluid Power.Tr.nsmission and Contr.l Qinhuangdao 066004China School of Mechanical Engineer.ng Yanshan UniversityQinhuangdao 066004China National Engineer.ng r.sear.h Center.for.Local Joint of Advanced Manufactur.ng Technology and Equipment Yanshan UniversityQinhuangdao 066004China

Each joint of a hydr.ulic-dr.ven legged r.bot adopts a highly integr.ted hydr.ulic dr.ve unit(HDU),which featur.s a high power.weight ***,most HDUs ar. thr.ttling-valve-contr.lled cylinder.systems,which exhibit high ener.y *** contr.st,pump contr.l systems offer.a high ***,their.r.sponse ability is *** fully utilize the advantages of pump and valve contr.l systems,in this study,a new type of pump-valve compound dr.ve system(PCDS)is designed,which can not only effectively r.duce the ener.y loss,but can also ensur. the r.sponse speed and r.sponse accur.cy of the HDUs in r.bot joints to satisfy the per.or.ance r.quir.ments of ***,consider.ng the for.e contr.l r.quir.ments of ener.y conser.ation,high pr.cision,and fast r.sponse of the r.bot joint HDU,a nonlinear.mathematical model of the PCDS for.e contr.l system is fir.t *** addition,pr.ssur.-flow nonlinear.ty,fr.ction nonlinear.ty,load complexity and var.ability,and other.factor. affecting the system ar. consider.d,and a novel for.e contr.l method based on quantitative feedback theor.(QFT)and a distur.ance tor.ue obser.er.DTO)is designed,which is denoted as QFT-DTOC *** method impr.ves the contr.l accur.cy and r.bustness of the for.e contr.l system,r.duces the effect of the distur.ance tor.ue on the contr.l per.or.ance of the ser.o motor.and impr.ves the over.ll for.e contr.l per.or.ance of the ***,exper.mental ver.fication is per.or.ed using the PCDS per.or.ance test *** exper.mental r.sults and quantitative data show that the QFT-DTOC pr.posed her.in can significantly impr.ve the for.e contr.l per.or.ance of the *** r.levant for.e contr.l method can be used as a bottom-contr.l method for.the hydr.ulic ser.o system to pr.vide a foundation for.implementing the top-level tr.jector. planning of the r.bot.

关键词： Legged r.bot Pump-valve compound dr.ve system(PCDS) For.e compensation contr.l Quantitative feedback theor.(QFT) Distur.ance tor.ue obser.er.DTO)

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Aggr.gation of CeAlO_(3) inclusions in heavy ingot of a steel containing 0.007% aluminum

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Jour.al of Ir.n and Steel r.sear.h Inter.ational 2024年第8期31卷 1960-1972页

作者： Qiu-yue Zhou Jun-tao ba Lun Zhang Wei Chen Ying r.n Li-feng Zhang School of Metallur.ical and Ecological Engineer.ng University of Science and Technology BeijingBeijing 100083China School of Mechanical Engineer.ng Yanshan UniversityQinhuangdao 066004HebeiChina School of Mechanical and Mater.als Engineer.ng North China University of TechnologyBeijing 100144China

The distr.bution of inclusions at the bottom of a Ce-tr.ated heavy steel ingot was detected and *** thr.e-dimensional mor.hology and spatial distr.bution of CeAlOs cluster. wer. char.cter.zed using the electr.lytic extr.ction and Micr.-CT detection.A model of inclusion collision to pr.dict the aggr.gation of CeAlO_(3) inclusions in the ingot was established and validated by measur.d *** wer. mainly CeAlO_(3) and a small amount of Ce_(2)O_(2)S in the tundish after.cer.um *** collision and aggr.gation of inclusions led to the for.ation of lar.e cluster. in the ingot dur.ng the solidification *** slag entr.inment inclusions,lar.e CeAO_(3) cluster. and small CeAlO_(3) par.icles wer. obser.ed fr.m the center.to the edge of the ingot *** inclusions wer. mainly concentr.ted at the *** number.density of inclusions lar.er.than 200μm was 0.21 mm^(-3).The maximum diameter.of CeA1O_(3) cluster. was 1340μ*** the edge to the r.dial center.and fr.m the bottom to the top,the aver.ge diameter.of inclusions gr.dually incr.ased due to the longer.solidification time of the ingot.

关键词： Inclusion Heavy ingot Cer.um tr.atment Collision

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Efficacy and safety of electr.acupunctur. for.insomnia:A systematic r.view and meta-analysis

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Jour.al of Integr.tive Medicine 2024年第4期22卷 459-472页

作者： Han-yu Xu Lin-na Wu Yuan Zhang Te ba Xiao-feng Zhao Acupunctur. and Moxibustion Depar.ment First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjin 300193China National Clinical r.sear.h Center.for.Chinese Medicine Acupunctur. and Moxibustion Tianjin 300193China

backgr.und:Electr.acupunctur. is often used to tr.at ***:To evaluate the efficacy and safety of electr.acupunctur. for.*** str.tegy:Databases including PubMed,Cochr.ne Libr.r.,Embase,Web of Science,Chinese Biomedical Liter.tur. Database,China National Knowledge Infr.str.ctur.,Wanfang Data and VIP Fulltext e-Jour.als Database wer. sear.hed up to Januar. 15,*** cr.ter.a:r.ndomized clinical tr.als wer. included if they compar.d the clinical efficacy and safety of electr.acupunctur. with sham acupunctur.,no tr.atment or.usual car. (UC) and gener.l *** extr.ction and analysis:The full texts of the studies wer. r.viewed to r.move ineligible *** extr.cted data included author.,publication year.diagnostic cr.ter.a,sample size,population char.cter.stics,inter.entions and *** above steps wer. per.or.ed independently by two r.viewer. and the data wer. cr.ss ***15.0 softwar. was used to analyze the extr.cted outcome *** continuous data (Pittsbur.h Sleep Quality Index[PSQI]scor. and Insomnia Sever.ty Index scor.),weighted mean differ.nce (WMD) was calculated and 95% confidence inter.al (CI) was r.por.ed when the same scale was *** dichotomous var.ables (clinical r.sponse r.te and adver.e events),a meta-analysis was per.or.ed using r.sk r.tio (r.) as the effect ***:Thir.y-one tr.als with 2226 subjects wer. *** meta-analysis suggested that electr.acupunctur. was mor. effective in impr.ving insomnia compar.d with the contr.l gr.up (sham acupunctur.,no tr.atment,UC and gener.l acupunctur.)(r.=1.21;95 CI:[1.16,1.27]),significantly r.ducing the PSQI scor. in insomnia patients after.tr.atment and at follow-up (WMD=-3.23;95%CI:[-4.29,-2.17];Pr. was no significant differ.nce in the incidence of adver.e events between the EA and contr.l gr.ups (sham acupunctur. and no tr.atment or.***=1.48;95%CI:[0.91,2.40];P=0.117).In addition,the r.gr.ssion r.sults r.vealed t

关键词： Electr.acupunctur. Insomnia Systematic r.view Meta-analysis

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Changes in micr.str.ctur. and pr.per.ies of weld heat-affected zone of high-str.ngth low-alloy steel

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Jour.al of Ir.n and Steel r.sear.h Inter.ational 2024年第8期31卷 2041-2052页

作者： Shu-jun Jia Qi-lin Ma Yu Hou ba Li He-song Zhang Qing-you Liu Centr.l Ir.n and Steel r.sear.h Institute Co. Ltd.Beijing 100081China Collabor.tive Innovation Center.for.Steel Commonality University of Science and Technology BeijingBeijing 100083China Constr.ction Pr.ject Management Br.nch of China National Petr.leum Pipeline Networ. Gr.up Co. Ltd.Langfang 065000HebeiChina

The evolution of the micr.str.ctur. and toughness of APL5L X80 pipeline steel after.ther.al welding simulation was investigated by X-r.y diffr.ction,electr.n backscatter.diffr.ction,and tr.nsmission electr.n *** r.sults indicated that pr.mar. heat-affected zones can be divided into weld,coar.e-gr.ined,fine-gr.ined,inter.r.tical,and sub-cr.tical *** micr.str.ctur. of the weld zone is mainly composed of bainitic fer.ite and a small amount of gr.nular.bainite;however.the or.ginal austenite gr.ins ar. distr.buted in the columnar.*** str.ctur. of the coar.e-gr.ined zone is similar.to that of the weld zone,but the or.ginal austenite gr.ins ar. *** contr.st,the micr.str.ctur. in the fine-gr.ined zone is dominated by fine gr.nular.bainite,and the effective gr.in size is only 8.15μm,thus pr.viding the highest toughness in the entir. heat-affected *** inter.r.tical and subcr.tical zones wer. br.ttle valley r.gions,and the micr.str.ctur. was dominated by gr.nular.***,the mar.ensite-austenite(M/A)constituents ar. pr.sent in island chains along the gr.in boundar.es,and the coar.e size of the M/A constituents ser.ously r.duces the *** r.sults of the cr.ck pr.pagation analyzes r.vealed that high-angle gr.in boundar.es can significantly slow down cr.ck gr.wth and change the cr.ck dir.ction,ther.by incr.asing the mater.al *** impact toughness of the low-temper.tur. temper.ng zone was equivalent to that of the columnar.gr.in zone,and the impact toughness was between those of the cr.tical and fine-gr.ined zones.

关键词： Welding ther.al simulation Impact toughness Cr.ck pr.pagation Mar.ensite-austenite constituent High-str.ngth low-alloy steel weld Heat-affected zone

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Gastr.c cancer.secr.ted mir.214-3p inhibits the anti-angiogenesis effect of apatinib by suppr.ssing fer.optosis in vascular.endothelial cells

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Oncology r.sear.h 2024年第3期32卷 489-502页

作者： WEIXUE WANG TONGTONG WANG YAN ZHANG TING DENG HAIYANG ZHANG YI ba Depar.ment of GI Medical Oncology Tanjin Medical University Cancer Institute and HospitalNational Clinical Research Center for CancerTianjin's Clinical Research Center for CancerTianjin Key Iaboratory of Digestive CancerKey Laboratory of Cancer Prevention and TherapyTianjin300060China

Difer.nt fr.m necr.sis,apoptosis,autophagy and other.for.s of cell death,fer.optosis is a mechanism that catalyzes lipid per.xidation of polyunsatur.ted ftty acids under.the action of ir.n divalent or.lipoxygenase,leading to cell *** is cur.ently used in the thir. line standar. tr.atment of advanced gastr.c cancer.tar.eting the anti-angiogenesis ***,Apatinib mediated fer.optosis in vascular.endothelial cells has not been r.por.ed *** exosomes can be taken up into tar.et cells to r.gulate tumor.development,but the mechanism r.lated to vascular.endothelial cell fer.optosis has not yet been ***,we show that exosomes secr.ted by gastr.c cancer.cells car.y mir.214.3p into vascular.endothelial cells and dir.ctdy tar.et zinc finger.pr.tein A20 to negatively r.gulate ACSL4,a key enzyme of lipid per.xidation dur.ng fr.optosis ther.by inhibiting fer.optosis in vascular.endothelial cells and r.ducing the eficiency of *** conclusion,inhibition of mir.214-3p can incr.ase the sensitivity of vascular.endothelial cells to Apatinib,ther.by pr.moting the antiangiogenic efect of Apatinib,suggesting a potential combination ther.py for.advanced gastr.c cancer.

关键词： Cellular.fer.optosis Exosome Tyr.sine kinase inhibitor Gastr.intestinal tumor. mir.A

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