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Insights into the mecha.ism of multiple Cu-doped Co Fe_(2)O_(4)na.oca.a.yst a.tiva.ed peroxymonosulfa.e for efficient degra.a.ion of rhoda.ine B

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Journa. of Environmenta. Sciences 2024年第3期137卷 382-394页

作者： Yua.min mo Xia.ping Zha.g School of Environment&Energy South China University of TechnologyGuangzhou Higher Education Mega CentreGuangzhou 510006China The Key La.ora.ory of Pollution Control a.d Ecosystem restora.ion in Industry Clusters of Ministry of Educa.ion Guangzhou 510006China Gua.gdong Provincia. Key La.ora.ory of Solid Wa.tes Pollution Control a.d recycling Guangzhou 510006China Gua.gdong Provincia. Engineering a.d Technology resea.ch Center for Environmenta. risk Prevention a.d Emergency Disposa. Guangzhou 510006China

The multiple meta. ca.a.yst a. a.promising na.oma.eria. ha. shown excellent a.tivity in the peroxymonosulfa.e(PMS)a.tiva.ion for polluta.t ***,the role of specia. sites a.d in-depth understa.ding of the PMS a.tiva.ion mecha.ism a.e not fully *** this study,a.Cu-doped CoFe_(2)O_(4)na.oca.a.yst(0.5CCF)wa. synthesized by a.sol-gel a.d ca.cina.ion method,a.d used for PMS a.tiva.ion to remove rhoda.ine B(rhB).The results showed tha. the Cu doping obviously enha.ced the ca.a.ytic performa.ce of CoFe_(2)O_(4),with 99.70%of rhB removed by 0.5CCF while 74.91%in the CoFe_(2)O_(4)within 15 *** on the X-ra. photoelectron spectroscopy a.d electrochemica. a.a.ysis,this could be a.cribed to the more low va.ence of Co a.d Fe species genera.ed on the 0.5CCF a.d fa.ter electron tra.sfers occurred in the 0.5CCF due to the Cu *** a.dition,Cu doping could provide more rea.tion sites for the 0.5CCF to a.tiva.e PMS for rhB *** meta. species a.d the surfa.e hydroxyl were the rea.tion sites of PMS a.tiva.ion,a.d the surfa.e hydroxyl pla.ed a. importa.t role in surfa.e-bound rea.tive species *** the PMS a.tiva.ion,the Cu not only a.tiva.ed PMS to produce rea.tive oxygen species(rOS),but a.so regenera.ed Co^(2+)a.d Fe^(2+)to a.celera.e the PMS *** non-ra.ica. of ^(1)O_(2)wa. the ma.n rOS with a.99.35%of contribution ra.e,a.d the SO_(5)^(·–)self-rea.tion wa. its ma.or *** study provides a.new insight to enha.ce the PMS a.tiva.ion performa.ce of multiple meta. ca.a.ysts by Cu doping in wa.tewa.er trea.ment.

关键词： Cu-doped CoFe_(2)O_(4)na.oca.a.yst PMS a.tiva.ion Mecha.ism rhoda.ine B remova.

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recent a.va.ces in Microbia. Production of Terpenoids from Bioma.s-derived Feedstocks

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Chemica. resea.ch in Chinese Universities 2024年第1期40卷 20-28页

作者： Ca. Yujin XIa. mo Ca. Key La.ora.ory of Bioba.ed Ma.eria.s Qingdao Institute of BioEnergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101P.R.China Sha.dong Energy Institute Qingdao 266101P.R.China Qingda. New Energy Sha.dong La.ora.ory Qingdao 266101P.R.China

Terpenoids a.e a.diverse cla.s of na.ura. products widely used a. pha.ma.eutica.s,perfumes,fla.ors,a.d ***,terpenoids a.e obta.ned from na.ura. sources,such a. pla.ts,but their production is limited by the insufficiency of resources a.d low yields of *** production of terpenoids ha. emerged a. a.promising a.terna.ive due to tha. it is susta.na.le a.d ea.y to sca.e *** review a.ms to summa.ize recent a.va.ces in microbia. production of terpenoids from inexpensive bioma.s-derived *** pa.hwa.s a.d key enzymes involved in terpenoid biosynthesis a.e *** tha. ca. utilize low-cost lignocellulosic feedstocks for terpenoid production a.e *** cha.lenges a.d prospects fa.ed by microbia. terpenoid production a.e *** believe tha. continuous progress in the fields of bioma.s tra.sforma.ion a.d synthetic biology will ultima.ely a.hieve industria. production of microbia. terpenoids.

关键词： Terpenoid Microbia. production Bioma.s-derived feedstock Meta.olic pa.hwa.

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Comprehensive modeling stra.egy for thermomecha.ica. tribologica. beha.ior a.a.ysis of ra.lwa. vehicle disc bra.e system

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Friction 2024年第1期12卷 74-94页

作者： Jia.a. YIN Chun LU Jilia.g mo School of Mecha.ica. Engineering Southwest Jiaotong UniversityChengdu 610031China Technology a.d Equipment of ra.l Tra.sit Opera.ion a.d Ma.ntena.ce Key La.ora.ory of Sichua. Province Chengdu 610031China

a.comprehensive modeling stra.egy for studying the thermomecha.ica. tribologica. beha.iors is proposed in this *** wea. degra.a.ion considering the influence of tempera.ure(T)is predicted by a.cha.d wea. model with the help of the UMESHmoTION subroutine a.d a.bitra.y La.ra.gia.–Euleria.(a.E)remeshing *** the proposed method,the thermomecha.ica. tribologica. beha.iors of ra.lwa. vehicle disc bra.e system composed of forged steel bra.e disc a.d Cu-ba.ed powder meta.lurgy(PM)friction block a.e studied *** effectiveness of the proposed methodology is va.ida.ed by experimenta. test on a.self-designed sca.ed bra.e test bench from the perspectives of interfa.e tempera.ure,wea. degra.a.ion,friction noise a.d vibra.ion,a.d conta.t sta.us *** work ca. provide a. effective wa. for the investiga.ion of thermomecha.ica. tribologica. beha.iors in the engineering field.

关键词： tribologica. beha.iors thermomecha.ica. field wea. prediction finite element simula.ion disc bra.e system ra.lwa. vehicle

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The recircula.ion flow a.ter different cross-section sha.ed high-rise buildings with a.plica.ions to ventila.ion a.sessment a.d dra. pa.a.eteriza.ion

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Building Simula.ion 2024年第4期17卷 509-524页

作者： Keyi Chen Ziwei mo Jia. Ha.g School of a.mospheric Sciences Sun Yat-sen University&Southern Marine Science and Engineering Guangdong LaboratoryZhuhai519082China Key La.ora.ory of Tropica. a.mosphere-Ocea. System Ministry of EducationZhuhai519000China

The building cross-section sha.e significa.tly a.fects the flow cha.a.teristics a.ound buildings,especia.ly the recircula.ion region behind the high-rise *** generic building sha.es including squa.e,tria.gle,octa.on,T-sha.ed,cross-sha.ed,#-sha.ed,H-sha.ed a.d L-sha.ed a.e exa.ined to elucida.e their effects on the flow pa.terns,recircula.ion length L a.d a.ea. a.using computa.iona. fluid dyna.ics(CFD)simula.ions with reynolds-a.era.ed Na.ier-Stokes(ra.S)*** sizes a.d positions of the vortexes behind the buildings a.e found to be substa.tia.ly a.fected by the building sha.es a.d subsequently cha.ging the recircula.ion *** recircula.ion length L is in the ra.ge of 1.6b-2.6b with a. a.era.e of *** ma.imum L is found for L-sha.ed building(2.6b)while the shortest behind octa.on building(1.6b).The vertica. recircula.ion a.ea.a. is in the ra.ge of 1.5b^(2)-3.2b^(2)a.d horizonta. a.ea.a. in 0.9b^(2)-2.2b^(2).The L,a. a.d a. genera.ly increa.e with increa.ing a.proa.hing fronta. a.ea.when the wind direction cha.ges but subject to the dent structures of the#-sha.ed a.d cross-sha.ed *** a.ea.a.era.ed wind velocity ra.io(a.r),which is proposed to a.sess the ventila.ion performa.ce,is in the ra.ge of 0.05 a.d 0.14,which is a.ound a.three-fold difference a.0}ng the different building *** dra. coefficient pa.a.eterized by a. va.ies significa.tly,suggesting tha. previous models without a.counting for building sha.e effect could result in la.ge uncerta.nty in the dra. *** findings provide importa.t reference for improving pedestria. wind environment a.d shed some light on refining the urba. ca.opy pa.a.eteriza.ion by considering the building sha.e effect.

关键词： recircula.ion region cross-section sha.e ventila.ion a.sessment dra. pa.a.eteriza.ion computa.iona. fluid dyna.ics

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a.new qua.tity in Finsler geometry

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Science China.Ma.hema.ics 2024年第4期67卷 883-890页

作者： Xia.hua. mo Xia.ya.g Wa.g Key La.ora.ory of Pure a.d a.plied Ma.hema.ics School of Mathematical SciencesPeking UniversityBeijing 100871China School of Ma.hema.ics a.d Sta.istics Beijing Institute of TechnologyBeijing 100081China

In this pa.er,we study a.new Finsleria. qua.tity■defined by the T-curva.ure a.d the a.gula. metric *** show tha. the■-curva.ure not only gives a.mea.ure of the fa.lure of a.Finsler metric to be of sca.a. fla. curva.ure but a.so ha. a.va.ishing *** find tha. the■-curva.ure is closely rela.ed to the riema.n curva.ure,the Ma.sumoto torsion a.d theΘ-*** solve ***’s open problem in terms of the■-***,we give a.globa. rigidity result for Finsler metrics of nega.ive ricci curva.ure on a.compa.t ma.ifold via.the■-curva.ure,genera.izing a.theorem previously only known in the ca.e of nega.ively curved Finsler metrics of sca.a. fla. curva.ure.

关键词： Finsler metric Finsleria. qua.tity T-curva.ure -curva.ure ra.ders metric

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Body size induced cha.ges in meta.olic ca.bon of soil nema.odes under N deposition a.d precipita.ion regime cha.ge in a.tempera.e gra.sla.d

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Ecologica. Processes 2024年第1期13卷 120-131页

作者： Shuya. Cui Xia.mei mo Guo Zheng College of Life Science Shenyang Normal University

Ba.kground Globa. clima.e cha.ge ha. resulted in precipita.ion regimes exhibiting a. increa.ing trend in ra.nfa.l intensity but a.reduction in its frequency. Nitrogen(N) deposition is a.crucia. component of the globa. N cycling. Nema.ode body size is a.tra.t tha. responds to clima.e cha.ge a.d is used a. a.sta.da.d tra.t-ba.ed indica.or in soil community a.a.ysis. Va.ia.ions in body size influence meta.olic ca.bon(C). We exa.ined the wa.s by which body size a.d meta.olic C of nema.odes respond to cha.ging precipita.ion regimes a.d how N deposition regula.es these responses by a. 8-yea. ma.ipula.ive *** Nema.ode body size wa. indica.ed by the community-weighted mea.(CWM) ma.s. We qua.tified C meta.olism components of soil nema.odes including production C, respira.ion C, a.d corresponding C use efficiency(CUE) under different precipita.ion intensities a.d N a.dition in a.semi-a.id steppe on the mongolia. Pla.ea.. The Ma.tel test wa. used to determine the correla.ions between CWM, CUE a.d environmenta. fa.tors. The pa.tia. lea.t squa.es pa.h modeling(PLS-PM) wa. conducted to qua.tify direct or indirect contributions a.0}ng la.ent *** We found tha. hea.y precipita.ion intensity increa.ed the CWM ma.s of tota. nema.odes a.d omnivorespreda.ors without N a.dition. N a.dition decrea.ed CWM ma.s of ba.terivores a.ross a.l the precipita.ion intensity trea.ments. Stronger precipita.ion intensities might be fa.ora.le for nema.ode production a.d respira.ion C. Va.ia.ions in the nema.ode CWM ma.s drove the CUE to cha.ge with N *** Our findings provide new insights into the mecha.isms underlying nema.ode body size a.d C meta.olism, a.d highlight tha. explora.ive studies, such a. ma.ipula.ive experiments, a.e needed to identify tra.ts underlying size-rela.ed effects a.d to investiga.e how they a.fect CUE of nema.odes. These efforts ma. increa.e our understa.ding of how cha.ges in precipita.ion regimes a.d N deposition ma. a.ter soil nema

关键词： Community-weighted mea. Meta.olic footprint Nitrogen a.dition Precipita.ion intensity

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Distributed Heterogeneous Multi-a.ent Optimiza.ion with Stocha.tic Sub-Gra.ient

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Journa. of Systems Science & Complexity 2024年第4期37卷 1470-1487页

作者： HU Ha.kun mo Lipo Ca. Xia.bing School of Ma.hema.ics a.d Sta.istics Central South UniversityChangsha 410083China School of Ma.hema.ics a.d Sta.istics Beijing Technology and Business UniversityBeijing 100048China resea.ch Centre for a.ri-Product Qua.ity Tra.ea.ility Beijing Technology and Business UniversityBeijing 100048China School of Computer a.d a.tificia. Intelligence Beijing Technology and Business UniversityBeijing 100048China China.Food Fla.or a.d Nutrition Hea.th Innova.ion Center Beijing Technology and Business UniversityBeijing 100048China

This pa.er studies the optimiza.ion problem of heterogeneous networks under a.timeva.ying *** a.ent only a.cesses to one loca. objective function,which is *** improved a.gorithm with noisy mea.urement of loca. objective functions' sub-gra.ients a.d a.ditive noises a.0}ng informa.ion excha.ging between ea.h pa.r of a.ents is designed to minimize the sum of objective functions of a.l *** wea.en the effect of these noises,two step sizes a.e introduced in the control *** gra.h theory,stocha.tic a.a.ysis a.d ma.tinga.e convergence theory,it is proved tha. if the sub-gra.ients a.e uniformly bounded,the sequence of digra.hs is ba.a.ced a.d the union gra.h of a.l digra.hs is joint strongly connected,then the designed control protocol ca. force a.l a.ents to find the globa. optima. point a.most *** la.t,the a.thors give some numerica. exa.ples to verify the effectiveness of the stocha.tic sub-gra.ient a.gorithms.

关键词： Communica.ion noises distributed stocha.tic optimiza.ion heterogeneous networks subgra.ient mea.urement noises

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Self-a.igned dua.-bea. superresolution la.er direct writing with a.pola.iza.ion-engineered depletion bea.

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Photonics resea.ch 2024年第6期12卷 1194-1200页

作者： GUOLIa.G CHEN DEWEI mo JIa. CHEN QIWEN ZHa. School of Optica.-Electrica. a.d Computer Engineering University of Shanghai for Science and TechnologyShanghai 200093China Sha.gha. Key La.ora.ory of modern Optica. System University of Shanghai for Science and TechnologyShanghai 200093China Zha.gjia.g La.ora.ory Shanghai 201204China

a.fiber-ba.ed,self-a.igned dua.-bea. la.er direct writing system with a.pola.iza.ion-engineered depletion bea. is designed,constructed,a.d *** system employs a.vortex fiber to genera.e a.donut-sha.ed,cylindrica.ly pola.ized depletion bea. while simulta.eously a.lowing the funda.enta. mode excita.ion bea. to pa.s *** results in a.co-a.ia.ly self-a.igned dua.-bea. source,enha.cing sta.ility a.d mitiga.ing a.sembly *** size of the centra. da.k spot of the focused cylindrica. vector depletion bea. ca. be ea.ily a.justed using a.simple pola.iza.ion rota.ion *** a.depletion wa.elength of 532 nm a.d a. excita.ion wa.elength of800 nm,the dua.-bea. la.er direct writing system ha. demonstra.ed a.single linewidth of 63 nm a.d a.minimum line spa.ing of 173 *** optimiza.ion of this system ma. pa.e the wa. for pra.tica. superresolution photolithogra.hy tha. surpa.ses the diffra.tion limit.

关键词： pola.iza.ion bea. depletion

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a.super sa.dstorm a.tered the a.unda.ce a.d composition of a.rborne ba.teria.in Beijing

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Journa. of Environmenta. Sciences 2024年第10期144卷 35-44页

作者： Fa.xua. Xia.Zhuo Chen Enze Tia. Jinha. mo Beijing Key La.ora.ory of Indoor a.r Qua.ity Eva.ua.ion a.d Control Department of Building ScienceTsinghua UniversityBeijing 100084China Songsha. La.e Ma.eria.s La.ora.ory Dongguan 523808China Institute of Physics Chinese Academy of SciencesBeijing 100190China College of Civil a.d Tra.sporta.ion Engineering Shenzhen UniversityShenzhen 518060China Key La.ora.ory of Coa.ta. Urba. resilient Infra.tructures(Shenzhen University) Ministry of EducationShenzhen 518060China Key La.ora.ory of Eco Pla.ning&Green Building(Tsinghua.University) Ministry of EducationBeijing 100084China

Sa.dstorm,which injects generous newly emerging microbes into the a.mosphere covering cities,a.versely a.fects the a.r qua.ity in built ***,few studies ha.e exa.ined the cha.ge of a.rborne ba.teria.during severe sa.dstorm *** this work,we a.a.yzed the a.rborne ba.teria.during one of the strongest sa.dstorms in Ea.t a.ia.onMa.ch 15th,2021,which a.fected la.ge a.ea. of China.a.d *** cha.a.teristics of the sa.dstorm were compa.ed with those of the subsequent clea. a.d ha.e *** composition of the ba.teria. community of a.r sa.ples wa. investiga.ed using qua.tita.ive polymera.e cha.n rea.tion(qPCr)a.d high-throughput sequencing *** the sa.dstorm,the pa.ticula.e ma.ter(PM)concentra.ion a.d ba.teria. richnesswere extremely high(PM2.5:207μg/m3;PM10:1630μg/m3;5700 a.plicon sequence va.ia.ts/m3).In a.dition,the sa.dstorm brought 10 pa.hogenic ba.teria. genera.to the a.mosphere,posing a.gra.e ha.a.d to huma. *** the sa.dstorm subsided,sma.l bioa.rosols(0.65–1.1μm)with a.simila. ba.teria. community rema.ned suspended in the a.mosphere,bringing possible long-la.ting hea.th risks.

关键词： a.rborne ba.teria Sa.dstorm Bioa.rosol Ha.e Pa.hogen

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Distributed region Tra.king a.d Perimeter Surveilla.ce for Second-Order Multi-a.ent Systems in Sta.-Sha.ed Sets

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Journa. of Systems Science & Complexity 2024年第5期37卷 1995-2020页

作者： SHa.G Jua. mo Lipo MI rongxin Ca. Xia.bing School of Ma.hema.ics a.d Sta.istics Beijing Technology and Business UniversityBeijing 100048China The Depa.tment of Founda.ion Shijiazhuang Institute of Railway TechnologyShijiazhuang 050041China School of Computer a.d a.tificia. Intelligence Beijing Technology and Business UniversityBeijing 100048China resea.ch Centre for a.ri-Product Qua.ity Tra.ea.ility Beijing Technology and Business UniversityBeijing 100048China Coordina.ion Center of China National Computer Network Emergency Response Technical TeamBeijing 100029China

This pa.er investiga.es region tra.king a.d perimeter surveilla.ce of second-order multia.ent systems,where a.l a.ents move within a.sta.-sha.ed ***,by coordina.ion tra.sforma.ions,the region tra.king problem is converted from the sta.-sha.ed sets to a.circula. *** a.thors employ communica.ion a.d colla.ora.ion to complete region tra.king a.d perimeter surveilla.ce ta.ks,a.d then revert ba.k to the sta.-sha.ed set by using inverse ***,the a.thors propose a.distributed control stra.egy ba.ed on a.tra.tive a.d intera.tion potentia. functions,under which a.l a.ents ca. quickly tra.k a.given circula. region a.d move a.ound the ***,the a.thors va.ida.e the effectiveness a.d performa.ce a.va.ta.es of the proposed method through simula.ion experiments.

关键词： Distributed control multi-a.ent systems sta.-sha.ed sets ta.get tra.king

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