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Acta Mathematica sinica,English Ser.es 1999年第2期15卷 235-244页

作者： Liuquan Sun yong zhou, institute of applied mathematics, academia sinica, beijing 100080, p. r. china institute of applied mathematics Academia Sinica Beijing P. R. China

In this p.p.r.we obtain exact r.tes of unifor. conver.ence for.oscillation moduli and Lip.chitz-1/2 moduli of p.-p.ocess and cumulative hazar. p.ocess when the data ar. subject to left tr.ncation and r.ght censor.hip. Based on these r.sults, the exact r.tes of unifor. conver.ence for.var.ous typ.s of density and hazar. function estimator. ar. der.ved.

关键词： Tr.ncation and censor.hip Oscillation modulus p.-p.ocess Cumulative hazar. p.ocess Ker.el estimator

Miniatur.zed p.wer.detection module op.r.ting in millimeter.wave band

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Jour.al of Electr.nic Science and Technology 2024年第2期22卷 69-76页

作者： Xiang zhou Zhi-yong Zhong School of Electr.nic Science and Engineer.ng University of Electronic Science and Technology of ChinaChengdu611731China

The miniatur.zed br.adband detection module can be embedded into the micr.wave ap.lication system such as the fr.nt end of the tr.nsmitter.to detect the p.wer.or.other.p.r.meter. in r.al *** is highly p.osp.ctive in militar. and scientific *** this p.p.r.a br.adband p.wer.detection module op.r.ting at 26.5 GHz-40.0 GHz is designed by using low-bar.ier.Schottky diode as the detector.and a comp.r.tor.for.thr.shold *** module can dynamically detect the p.wer.r.nge between-10 dBm and 10 dBm with the detection accur.cy of 0.1 ***,the temp.r.tur. comp.nsation cir.uit is also applied to imp.ove the measur.ment *** a r.sult,the r.sulted er.or.low to±1 dB in the temp.r.tur. r.nge of -55℃ to +85℃ is *** designed module is encap.ulated by a Kovar.alloy with a small volume of 9 mm×6 mm×3 *** endows the designed module the advantages of small size,easy integr.tion,and low cost,and even it is ap.licable to high-r.liability envir.nments such as satellites.

关键词： Diode Miniatur.zation p.wer.detection Temp.r.tur. comp.nsation

p.edicting micr.bial extr.cellular.electr.n tr.nsfer.activity in p.ddy soils with soil p.ysicochemical p.op.r.ies using machine lear.ing

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Science china(Technological Sciences) 2024年第1期67卷 259-270页

作者： OU JiaJun LUO XiaoShan LIU JunYang HUANG LinYan zhou LiHua YUAN yong School of Automation Guangdong University of TechnologyGuangzhou 510006China Guangdong Key Labor.tor. of Envir.nmental Catalysis and Health r.sk Contr.l Guangzhou Key Laboratory Environmental Catalysis and Pollution ControlSchool of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China School of Biomedical and p.ar.aceutical Sciences Guangdong University of TechnologyGuangzhou 510006China

Soil extr.cellular.electr.n tr.nsfer.EET)is a p.votal biological p.ocess within the r.alm of ***,EET suffer. fr.m a lack of p.edictive ***,an intr.cately cr.fted machine lear.ing model has been develop.d for.the p.r.0}se of p.edicting soil EET by using the p.ysicochemical p.op.r.ies of soil as indep.ndent inp.t var.ables and the EET cap.bilities in ter.s of cur.ent density(j_(max))and Coulombic char.e(C_(out))as dep.ndent outp.t *** autoencoder.ensemble stacking(AES)model was develop.d to addr.ss the afor.mentioned issue by integr.ting sup.or. vector.machine,multilayer.p.r.ep.r.n,extr.me gr.dient boosting,and light gr.dient boosting machine algor.thms as the stacking *** 10-fold cr.ssvalidation,the AES model exhibited notable imp.ovements in p.edicting j_(max)and C_(out),with aver.ge test r.(2)values of 0.83 and 0.84,r.sp.ctively,sur.0}ssing those of single machine lear.ing(ML)models and the basic ensemble *** utilizing p.r.ial cor.elation p.ots(p.p.),Shap.ey Additive exp.anations(SHAp.values,and SHAp.decision p.ots,we quantitatively exp.ained the imp.ct and contr.bution of the inp.t molecules on the AES model’s p.edictions of j_(max)and C_(out).In the context of the SHAp.method for.the AES model,total car.on(TC)was identified as the most cor.elated descr.p.or.for.j_(max),while total or.anic car.on(TOC)stood out as the most r.levant descr.p.or.for.C_(out).In the p.ediction tasks of j_(max)and C_(out)within the AES model,emp.oying a multitask ML ap.r.ach allowed the model to benefit fr.m the shar.d infor.ation of inp.t var.ables,ther.by enhancing its over.ll *** study p.ovides a feasible tool for.the p.ediction of soil EET fr.m soil p.ysiochemical p.op.r.ies and an advanced under.tanding of the r.lationship.between soil p.ysiochemical p.op.r.ies and EET cap.bility.

关键词： extr.cellular.electr.n tr.nsfer p.ddy soil machine lear.ing p.ediction autoencoder.ensemble stacking model

Ultr.high sp.tiotemp.r.l r.solution beam signal r.constr.ction with bunch p.ase comp.nsation

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Nuclear.Science and Techniques 2024年第5期35卷 99-108页

作者： You-Ming Deng yong-Bin Leng Xing-Yi Xu Jian Chen Yi-Mei zhou Shanghai institute of applied p.ysics Chinese Academy of SciencesShanghai 201800China Univer.ity of the Chinese Academy of Sciences Beijing 100049China Shanghai Synchr.tr.n r.diation Facility Chinese Academy of SciencesShanghai 201204China Univer.ity of Science and Technology of china Hefei 230026China Shanghai Advanced r.sear.h institute Chinese Academy of SciencesShanghai 201204China

Var.ous electr.magnetic signals ar. excited by the beam in the acceler.tion and beam-diagnostic elements of a p.r.icle *** is imp.r.ant to obtain time-domain wavefor.s of these signals with high temp.r.l r.solution for.r.sear.h,such as the study of beam–cavity inter.ctions and bunch-by-bunch p.r.meter.***,a signal r.constr.ction algor.thm with ultr.high sp.tiotemp.r.l r.solution and bunch p.ase comp.nsation based on equivalent samp.ing is p.op.sed in this *** with tr.ditional equivalent samp.ing,the use of p.ase comp.nsation and setting the bunch signal zer.-cr.ssing p.int as the time r.fer.nce can constr.ct a mor. accur.te r.constr.cted *** basic p.incip.es of the method,simulation,and exp.r.mental comp.r.son ar. also *** on the beam test p.atfor. of the Shanghai Synchr.tr.n r.diation Facility(SSr.)and the method of exp.r.mental ver.fication,the factor. that affect the r.constr.cted signal quality ar. analyzed and discussed,including the dep.h of the samp.ed data,quantization noise of analog-to-digital conver.er.beam tr.nsver.e oscillation,and longitudinal *** r.sults of the beam exp.r.ments show that under.the user.op.r.tion conditions of the SSr.,a beam excitation signal with an amp.itude uncer.ainty of 2%can be r.constr.cted.

关键词： Tur.-by-tur. bunch p.ase comp.nsation technique Equivalent samp.ing Signal r.constr.ction algor.thm Ultr.high sp.tiotemp.r.l r.solution SSr.

Bunch-length measur.ment at a bunch-by-bunch r.te based on time–fr.quency-domain joint analysis techniques and its ap.lication

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Nuclear.Science and Techniques 2024年第4期35卷 165-175页

作者： Hong-Shuang Wang Xing Yang yong-Bin Leng Yi-Mei zhou Ji-Gang Wang Shanghai institute of applied p.ysics Chinese Academy of SciencesShanghai 201800China Univer.ity of Chinese Academy of Sciences Beijing 100049China National Synchr.tr.n r.diation Labor.tor. University of Science and Technology of ChinaHefei 230026China Shanghai Advanced r.sear.h institute Chinese Academy of SciencesShanghai 201204China

This p.p.r.p.esents a new technique for.measur.ng the bunch length of a high-ener.y electr.n beam at a bunch-by-bunch r.te in stor.ge *** technique uses the time–fr.quency-domain joint analysis of the bunch signal to obtain bunch-by-bunch and tur.-by-tur. longitudinal p.r.meter.,such as bunch length and synchr.nous *** bunch signal is obtained using a button electr.de with a bandwidth of sever.l *** data acquisition device was a high-sp.ed digital oscilloscop. with a samp.ing r.te of mor. than 10 GS/s,and the single-shot samp.ing data buffer.cover.d thousands of *** bunch-length and synchr.nous p.ase infor.ation wer. extr.cted via offline calculations using p.thon *** calibr.tion coefficient of the system was deter.ined using a commer.ial str.ak ***,this technique was tested on two differ.nt stor.ge r.ngs and successfully cap.ur.d var.ous longitudinal tr.nsient p.ocesses dur.ng the har.onic cavity debugging p.ocess at the Shanghai Synchr.tr.n r.diation Facility(SSr.),and longitudinal instabilities wer. obser.ed dur.ng the single-bunch accumulation p.ocess at Hefei Light Sour.e(HLS).For.Gaussian-distr.bution bunches,the uncer.ainty of the bunch p.ase obtained using this technique was better.than 0.2 p.,and the bunch-length uncer.ainty was better.than 1 *** dynamic r.nge exceeded 10 *** technology is a p.wer.ul and ver.atile beam diagnostic tool that can be conveniently dep.oyed in high-ener.y electr.n stor.ge r.ngs.

关键词： Bunch-by-bunch diagnostic Bunch-length measur.ment Synchr.nous p.ase measur.ment Joint time–fr.quency-domain analysis Longitudinal instability

Synthesis of p.anar.Chir.l[2.2]p.r.cyclop.ane-Based Oxazole-p.r.midine Ligands and Ap.lication in Nickel-Catalyzed 1,2-r.duction ofα,β-Unsatur.ted Ketones

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Chinese Jour.al of Chemistr. 2024年第7期42卷 705-710页

作者： Juan Wang Qing-Xian Xie Xiang Li Chang-Bin Yu yong-Gui zhou School of Chemistr. Dalian University of Technology2 Linggong RoadDalianLiaoning 116024China State Key Labor.tor. of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning 116023China

The p.anar.chir.l ligands have been widely applied as a class of unique and significant ligands in asymmetr.c *** them,chir.l[2.2]p.r.cycyclop.ane has emer.ed as a p.ivileged typ. of p.anar.chir.l fr.mewor. and has been utilized as an imp.r.ant toolbox due to their.str.ctur.l ***,we design and synthesize[2.2]p.r.cyclop.ane-der.ved oxazole-p.r.midine ligands(abber.iated as p.MCOX).These N,N-ligands with stable p.op.r.ies,r.gid str.ctur. and lar.e ster.c hindr.nce p.r.or.ed successfully in nickel-catalyzed asymmetr.c 1,2-r.duction ofα,β-unsatur.ted ketones,affor.ing the chir.l allylic alcohols with up.to 99%yield and 99%***,this r.duction r.action could be conducted on gr.m-scale without loss of activity and enantioselectivity,and the chir.l ligand could be conveniently r.cover.d with high yield.

关键词： Oxazole-p.r.midine ligands p.anar.chir.lity Nickel Hydr.bor.tion Asymmetr.c synthesis

In situ p.ep.r.tion and Visible-light-dr.ven p.otocatalytic Degr.dation p.r.or.ance of Nano 3C-SiC@Multilayer.Gr.p.ene Oxide Heter.str.ctur.

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Chemical r.sear.h in Chinese Univer.ities 2024年第3期40卷 536-547页

作者： YANG Xiaodan GUO Ziqi XU Yichen LI Ziliang zhou Yangtao YANG Zhenming zhou Zishuai GAO yong ZHANG Jinsong Shenyang National Labor.tor. for.Mater.als Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016P.R.China Nano Science and Technology institute University of Science and Technology of ChinaSuzhou 215123P.R.China Shenyang SCIENCr.AT Chemicals Co. Ltd.Shenyang 110144P.R.China School of Mater.als Science and Engineer.ng Northeastern UniversityShenyang 110819P.R.China

Nano 3C-SiC@multilayer.gr.p.ene oxide(NS@MGO)heter.str.ctur. was in situ p.ep.r.d by car.other.al r.duction of p.r.lyzed p.ecur.or.comp.sed of highly disp.r.ed cur.d p.enolic r.sin and silicon dioxide der.ved fr.m tetr.ethyl *** heter.junction inter.ace,number.of layer. of MGO,and defect content in gr.p.ene ar. the thr.e most imp.r.ant factor. for.p.omoting p.otocatalytic *** contact between 3C-SiC nanogr.ins and MGO layer. facilitates the p.otogener.ted electr.ns to migr.te acr.ss the heter.junction inter.ace and avoid the for.ation of SiO_(2) nanolayer. on the sur.ace of SiC *** number.of MGO layer. is sup.osed to be less than ten instead of over.thick *** concentr.tions of oxygenated comp.nents,consider.d the defect contents,decr.ase with the incr.ase of sinter.ng temp.r.tur. for.NS@MGO 0.175-T-150,and r.lative car.on content in the multilayer.gr.p.ene *** to the heter.str.ctur.s,p.op.r.ies,and p.otocatalytic r.action p.r.or.ance of the NS@MGO mater.als,the highest p.otocatalytic kinetic r.te constant of 0.00891/min for.NS@MGO 0.175-1500-150 shows that the significant enhancement in p.otocatalytic degr.dation activity under.visible light(>420 nm)ir.adiation is ascr.bed to the advantageous syner.istic effects between the nano 3C-SiC p.r.icles and the dir.ct contact multilayer.gr.p.ene oxide with ap.r.p.iate layer. and sufficient oxygen content of 3.51%(atomic fr.ction)in MGO.

关键词： p.otocatalysis Multilayer.gr.p.ene oxide Nano 3C-SiC Visiblelight degr.dation

Clinical efficacy of the top.cal ap.lication of tr.nexamic acid in tendon r.lease in the hand:A r.ndomized contr.lled tr.al

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Chinese Jour.al of Tr.umatology 2024年第3期27卷 163-167页

作者： Hao Liu Jun Liu yong-Wei Wu Ming zhou yong-Jun r.i Suzhou Medical College of Soochow Univer.ity Suzhou215000Jiangsu provinceChina Dep.r.ment of Tr.umatic Or.hop.dics Wuxi Ninth People's Hospital Affiliated to Soochow UniversityWuxi214000Jiangsu provinceChina

p.r.0}se:To study the clinical effectiveness of the top.cal ap.lication of tr.nexamic acid in hand tendon ***:This was a r.ndomized contr.lled tr.al conducted after.r.ceiving ap.r.val fr.m the local ethics committee accor.ing to guidelines fr.m the Helsinki *** p.tients who under.ent hand tendon r.lease op.r.tion in our.hosp.tal fr.m Januar. 2021 to December.2022 wer. included and r.ndomly divided into 2 *** in the tr.nexamic acid gr.up.40 cases)r.ceived intr.op.r.tive top.cal ap.lication of 2 g of tr.nexamic acid after.tendon r.lease,while p.tients in the conventional gr.up.40 cases)did not r.ceive top.cal ap.lication of tr.nexamic acid dur.ng *** op.r.tion time,p.r.op.r.tive hemoglobin changes,total blood loss,incidence of ear.y p.stop.r.tive comp.ications,and total active movement(TAM)befor. sur.er. and 6 months after.sur.er. wer. comp.r.d between the 2 *** continuous var.able which follows nor.al distr.bution exp.essed by mean±SD and used t-test to comp.r. between ***,categor.cal var.ables wer. used by Chi-squar. test,and a p.0.05 indicated that the differ.nces wer. statistically ***:Both gr.up. wer. followed up.for.7-18 months,with a mean of 10.3 *** decr.ase in hemoglobin was significantly less in the tr.nexamic acid gr.up.than in the conventional gr.up.t=7.611,p.0.001).The total blood loss in the tr.nexamic acid gr.up.74.33±20.50)mL was less than that in the conventional gr.up.83.05±17.73)mL,and the differ.nce was statistically significant(p.0.05).Both gr.up. showed imp.ovement in thumb/finger.flexion and extension r.nge of motion after.sur.er.,and the TAM imp.oved comp.r.d with those befor. sur.er.,and the differ.nce was statistically significant(p.0.001).The TAM imp.oved mor. significantly in the tr.nexamic acid gr.up.87.68°±10.44°)than in the conventional gr.up.80.47°±10.93°)at 6 months after.sur.er.,with a statistically significant differ.nce(t=3.013,p.0.0

关键词： Tr.nexamic acid Tendon r.lease Total active movement Tendon adhesion

Fundamentals and ap.lication in p.ytor.mediation of an efficient ar.enate r.ducing bacter.um p.eudomonas p.tida Ar.1

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Jour.al of Envir.nmental Sciences 2024年第3期137卷 237-244页

作者： Ze-Wen Wang Guang Yang Jian Chen Yaoyu zhou Avelino Nunez Delgado Hui-Ling Cui Gui-Lan Duan Bar.y p.r.sen yong-Guan Zhu Henan institute of Advanced Technology Zhengzhou UniversityZhengzhou 450052China State Key Lab of Ur.an and r.gional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Dep.r.ment of Cellular.Biology and p.ar.acology Florida International UniversityHerbert Wertheim College of MedicineMiamiFL33199USA Univer.ity of Chinese Academy of Sciences Beijing 100049China Key Labor.tor. of Ur.an Envir.nment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China College of r.sour.es and Envir.nment Hunan Agricultural UniversityChangsha 410128China Dep.r.ment of Soil Science and Agr.cultur. Chemistr. Engineering Polytechnic SchoolUniversity of Santiago de CompostelaCampus Univ.s/n27002LugoSpain

Ar.enic is a ubiquitous envir.nmental ***-mediated ar.enic biotr.nsfor.ations significantly infuence ar.enic mobility and *** tr.nsfor.ations by soil and aquatic or.anisms have been well documented,while little is known r.gar.ing effects due to endop.ytic *** endop.yte p.eudomonas p.tida Ar.1 was isolated fr.m r.ce gr.wn in ar.enic contaminated *** Ar.1 shows high toler.nce to ar.enite(As(Ⅲ))and ar.enate(As(V)),and exhibits efficient As(V)r.duction and As(Ⅲ)effux *** exp.sed to 0.6 mg/L As(V),As(V)in the medium was comp.etely conver.ed to As(Ⅲ)by *** Ar.1 within 4 *** sequencing showed that *** Ar.1 has two chr.mosomal ar.enic r.sistance gene cluster.(ar.r.BH)that contr.bute to efficient As(V)r.duction and As(Ⅲ)effux,and r.sult in high r.sistance to *** globosa is a str.ng ar.enic accumulator.with high p.tential for.ar.enic p.ytor.mediation,which takes up.As(Ⅲ)mor. efficiently than As(V).Co-cultur. of *** Ar.1 and *** enhanced ar.enic accumulation in *** by 69%,and r.sulted in 91%r.moval of ar.enic(at initial concentr.tion of 0.6 mg/L As(V))fr.m water.within 3 *** study p.ovides a p.omising str.tegy for.in situ ar.enic p.ytor.mediation thr.ugh the coop.r.tion of p.ant and endop.ytic bacter.um.

关键词： Ar.enic p.eudomonas p.tida Ar.enate r.duction Endop.yte Wolffia globosa p.ytor.mediation

Cr.tical cur.ent degr.dation in an ep.xy-imp.egnated r.r.-ear.h Ba2Cu3O7-x coated conductor.caused by damage dur.ng a quench

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applied mathematics and Mechanics(English Edition) 2024年第9期45卷 1557-1572页

作者： Donghui LIU Huadong yong Youhe zhou institute of Sup.r.onductor.Mechanics Lanzhou University Dep.r.ment of Mechanics and Engineer.ng Sciences College of Civil Engineering and Mechanics Lanzhou University Key Labor.tor. of Mechanics on Disaster.and Envir.nment in Wester. china Ministry of Education of China Lanzhou University

High-temp.r.tur. sup.r.onducting（HTS） r.r.-ear.h Ba2Cu3O7-x（r.BCO）coated conductor.（CCs） have significant p.tential in high-cur.ent and high-field ap.lications. However. owing to the weak inter.ace str.ngth of the laminated comp.site r.BCO CCs, the damage induced by the ther.al mismatch str.ss under.a combination of ep.xy imp.egnation, cooling, and quenching can cause p.ematur. degr.dation of the cr.tical cur.ent. In this study, a thr.e-dimensional（3D） electr.magnetic-ther.al-mechanical model based on the H-for.ulation and cohesive zone model（CZM） is develop.d to study the cr.tical cur.ent degr.dation char.cter.stics in an ep.xy-imp.egnated r.BCO CC caused by the damage dur.ng a quench. The temp.r.tur. var.ation, cr.tical cur.ent degr.dation of the r.BCO CC, and its degr.dation onset temp.r.tur. calculated by the numer.cal model ar. in agr.ement with the exp.r.mental data taken fr.m the liter.tur.. The delamination of the r.BCO CC p.edicted by the numer.cal model is consistent with the exp.r.mental r.sult. The numer.cal r.sults also indicate that the shear.str.ss is the main contr.butor.to the damage p.op.gation inside the r.BCO CC. The p.ematur. degr.dation of the cr.tical cur.ent dur.ng a quench is closely r.lated to the inter.ace shear.str.ngth inside the r.BCO CC. Finally, the effects of the coefficient of ther.al exp.nsion（CTE） of the ep.xy r.sin, thickness of the substr.te, and substr.te mater.al on the cr.tical cur.ent degr.dation char.cter.stics of the ep.xy-imp.egnated r.BCO CC dur.ng a quench ar. also discussed. These r.sults help.us under.tand the r.lationship.between the cur.ent-car.ying degr.dation and damage in the HTS ap.lications.

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