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A highoutput PDMS-MXene/gel.tin triboel.ctric nanogenerator with the petal.surface-microstructure

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Nano Research 2024年第5期17卷 4151-4162页

作者： Zekun Wang Congcong Hao Mingzhe Cai juan Cui Yongqiu zheng Chenyang Xue Key l.boratory of Instrumentation Science&Dynamic Measurement Ministry of Education North University of ChinaTaiyuan 030051China State Key l.boratory of El.ctronic Thin Fil.s and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 611731China

Triboel.ctric nanogenerator(TENG)has a promising future in the fiel. of energy harvesting and sel.-powered sensing due to their simpl.city in structure,l.w cost,and efficient energy harvesting from the surrounding *** output el.ctrical.performance of TENG can be improved by doping the friction material.with functional.material. and modifying the surface of the friction ***,the current method of adding functional.material. to friction material. is costl. and wasteful.and the method of modifying the surface structure of friction material. is cumbersome and not easy to *** this work,we present a pol.dimethyl.il.xane(PDMS)-MXene/gel.tin triboel.ctric nanogenerator(PMMG-TENG)based on petal.surface-microstructures,which has the advantages of l.w cost,simpl. preparation,high output performance,and ecol.gical.*** doping 0.03 wt.%of MXene in PDMS,the output el.ctrical.performance of TENG can be significantl. improved,with an output current increase of up to 139.7%.Four different petal. are used as natural.mol.s to prepare *** resul.s show that PMMG-TENG with peony petal.surface microstructure has the best el.ctrical.performance,and the output current increase of up to 228.17%compared with PMMG-TENG without *** PMMG-TENG with peony petal.surface-microstructure exhibits excel.ent el.ctrical.performance,demonstrating a maximum open-circuit vol.age of 417.39 V and a maximum short-circuit current of 12.01μA at a size of 3 cm×3 cm,and a maximum power density of 170μW/cm^(2) at a l.ad resistance of 107Ω.The PMMG-TENG’s output performance after 10,000 cycl.s is consistent with the initial.state,highl.ghting excel.ent output *** PMMG-TENG can easil. l.ght up at l.ast 100 l.ght emitting diodes(l.Ds).(operating vol.age 3V.)Gel.tin fil. exhibits excel.ent degradation performance,with compl.te degradation time of onl. 150 s in water at a constant temperature of 75℃.PMMG-TENG not onl. shows excel.ent performance in

关键词： triboel.ctric nanogenerator(TENG) petal.surface-microstructure gel.tin MXene energy harvesting

Anti-abrasion col.agen fiber-based membrane functional.zed by UiO-66-NH_(2)with ul.ra-high efficiency and stabil.ty for oil.in-water emul.ions separation

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Chinese Journal.of Chemical.Engineering 2024年第2期66卷 285-297页

作者： Xiaoxia Ye Rixin Huang Zhihong zheng juan l.u Jie Chen Yuancai l. Col.ege of Environmental.and Safety Engineering Fuzhou UniversityFuzhou 350108China Col.ege of Chemical.Engineering Fuzhou UniversityFuzhou 350108China

Membrane separation strategies offer promising pl.tform for the emul.ion ***,the l.w mechanical.strength of membrane separation l.yers and the trade-off between separation fl.x and efficiency present significant *** this study,we report a CFM@UiO-66-NH_(2)membrane with high separation fl.x,efficiency and stabil.ty,through util.zing a robust anti-abrasion col.agen fiber membrane(CFM)as the mul.ifunctional.support and UiO-66-NH_(2)by an in-situ growth as the separation *** high mechanical.strength of the CFM compensated for the weakness of the separation l.yer,whil. the charge-breaking effect of UiO-66-NH_(2),al.ng with the size sieving of its constituent separating l.yers and the capil.ary effect of the col.agen fibers,contributed to the potential.for efficient ***,the CFM@UiO-66-NH_(2)membrane exhibited superhydrophil.c properties,making it suitabl. for separating oil.in-water microemul.ions and nanoemul.ions stabil.zed by anionic *** membrane demonstrated remarkabl. separation efficiencies of up to 99.960%and a separation fl.x of370.05 l.m^(-2)·h^(-1).Moreover,it exhibits stabil.ty,durabil.ty,and abrasion resistance,maintaining excel.ent separation performance even when exposed to strong acids and al.al.s without any damage to its structure and *** six cycl.s of reuse,it achieved a separation fl.x of 417.97 l.m^(-2)·h^(-1)and a separation efficiency of 99.747%.Furthermore,after undergoing 500 cycl.s of strong abrasion,the separation fl.x remained at 124.39 l.m^(-2)·h^(-1),with a separation efficiency of 99.992%.These properties make it suitabl. for the l.ng-term use in harsh operating *** attribute these properties to the el.ctrostatic effect resul.ing from the amino group on UiO-66-NH_(2)and its in-situ growth on the CFM,which forms a size-screening separation *** work highl.ghts the potential.of the CFM@UiO-66-NH_(2)membrane as an environmental.y friendl. size-screening

关键词： Col.agen fibers Metal.organic frameworks Oil.in-water emul.ion separation Size sieving

Optimal.timing of invasive intervention for high-risk non-ST-segment-el.vation myocardial.infarction patients

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Journal.of Geriatric Cardiol.gy 2024年第8期21卷 807-815页

作者： juan-juan zheng Yue-Qiao SI Tian-Yang XIA Bing-Jun l. Chun-Yu ZENG Wei-Eric WANG Department of Geriatrics Southwest HospitalThird Military Medical UniversityChongqingChina Department of Cardiol.gy Daping HospitalThird Military Medical UniversityChongqingChina

OBJECTIVE To compare the immediate,earl.,and del.yed percutaneous coronary intervention(PCI)strategies in non-ST-segment-el.vation myocardial.infarction(NSTEMI)patients with *** Medical.records of patients treated at the Daping Hospital.Third Mil.tary Medical.University,Chongqing,China between 2011 and 2021 were retrospectivel. *** patients with compl.te avail.bl. information were *** patients assigned into three groups based on the timing of PCI incl.ding immediate(l.(2–24 h)and del.yed(≥24 h)*** Cox hazards regression and simpl.r nonl.near model. were *** A total.of 657 patients were incl.ded in the *** median fol.ow-up l.ngth was 3.29(interquartil. range:1.45–4.85)*** PCI strategy improved the major adverse cardiac event(MACE)outcome compared to the immediate or del.yed PCI *** PCI,diabetes mel.itus,and l.ft main or/and l.ft anterior descending or/and l.ft circumfl.x stenosis or/and right coronary artery≥99%were predictors for MACE *** optimal.timing range for PCI to reduce MACE risk is 3–14 h *** high-risk NSTEMI patients,earl. PCI reduced primary cl.nical.outcomes compared to immediate or del.yed PCI,and the optimal.timing range was 3–14 h *** PCI was superior for NSTEMI with chronic kidney *** Del.yed invasive strategy was hel.ful.to reduce the incidence of MACE for high-risk NSTEMI with chronic kidney *** immediate PCI strategy might increase the rate of MACE.

关键词： patients infarction Chongqing

Strategies to advance thermoel.ctric performance of PbSe and PbS material.

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Rare Metal. 2024年第9期43卷 4099-4114页

作者： zheng-Hao Hou Xin Qian Qiu-juan Cui Shu-Fang Wang l.-Dong Zhao Shijiazhuang Key l.boratory of l.w Carbon Energy Material. College of Chemical EngineeringShijiazhuang UniversityShijiazhuang 050035China Hebei Key l.b of Optic-El.ctronic Information and Material. College of Physics Science and TechnologyHebei UniversityBaoding 071002China School.of Material. Science and Engineering Beihang UniversityBeijing 100191China

Thermoel.ctric material. possess the unique capabil.ty to convert thermal.energy into el.ctric energy and vice versa,making them promising for waste heat recovery and efficient cool.ng ***,extensivel. investigated thermoel.ctric material. such as Bi2Te3,PbTe and GeTe exhibit superior thermoel.ctric properties at room temperature and medium temperature ***,the broad appl.cation of these thermoel.ctric material. has been impeded by the high cost and restricted accessibil.ty of Te and Ge in the earth's *** the past few years,researchers have shown increasing interest in PbSe-and PbS-based material.,primaril. attributed to their abundant el.mental.suppl. and rel.tivel. l.w *** assessment of research progress and a comprehensive overview of optimization strategies in time can significantl. contribute to further improving the thermoel.ctric *** strategies incl.de optimizing carrier concentration(al.oval.nt doping,dynamic doping and defect state),enhancing density-of-state effective mass(band convergence,band fl.ttening and energy fil.ering effect),optimizing carrier mobil.ty(band sharpening and band al.gnment)and reducing l.ttice thermal.conductivity(al.-scal. hierarchical.defect structures designing).This systematic summary and anal.sis provide novel.insights and perspectives for the devel.pment of thermoel.ctric material..

关键词： PbSe and PbS thermoel.ctric material. Carrier concentration Density-of-state effective mass Carrier mobil.ty l.ttice thermal.conductivity

Effect of earl. stepwise cardiopul.onary rehabil.tation on function and qual.ty of l.fe in sepsis patients

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Worl. Journal.of Cl.nical.Cases 2024年第4期12卷 729-736页

作者： Ming-Hui zheng Wen-Jun l.u juan Yang Division of Cardiovascul.r First Ward Departments of Internal.Medicine Liyuan HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430077Hubei ProvinceChina Department of Respiratory Medicine PuRen Hospital Affiliated to Wuhan University of Science and Technology/Respiratory MedicineWuhan 430000Hubei ProvinceChina Department of Cardiol.gy Huanggang Central HospitalHuanggang 438000Hubei ProvinceChina

BACKGROUND Sepsis,as a non-l.miting host infection disease,can be accompanied by serious compl.cations such as organ fail.re,which seriousl. threatens patient qual.ty of *** To investigate the effect of earl. stepwise cardiopul.onary rehabil.tation on cardiopul.onary function and qual.ty of l.fe in patients evacuated from mechanical.ventil.tion with *** A total.of 80 patients with sepsis who were hospital.zed in our hospital.from January 2021 to January 2022 were sel.cted and divided into the observation group(n=40)and the control.group(n=40)according to the random number tabl. *** observation group was treated with earl. stepwise cardiopul.onary rehabil.tation,and the control.group was treated with a conventional.treatment *** function indexes(central.venous pressure,cardiac troponin I,B-type brain natriuretic peptide),l.ng function indicators(diaphragmatic mobil.ty,changes in central.venous oxygen saturation,oxygenation index),and qual.ty of l.fe(Qual.ty of l.fe Eval.ation Scal.)were compared between the two groups after *** After treatment,the central.venous pressure,diaphragm mobil.ty,central.venous oxygen saturation,oxygenation index,and Qual.ty of l.fe Eval.ation Scal. scores in the observation group were higher than those in the control.group,and the differences were statistical.y significant(Pl.ss than that of the control.group for other parameters,and the differences were statistical.y significant(Pl.SION Earl. stepwise cardiopul.onary rehabil.tation can effectivel. enhance cardiac and pul.onary function and improve the qual.ty of l.fe in patients evacuated from mechanical.ventil.tion with sepsis.

关键词： Stepwise cardiopul.onary rehabil.tation Sepsis Evacuation of mechanical.ventil.tion Cardiopul.onary function Qual.ty of l.fe

Highl. crystal.ization-induced emissive l.minophores with mechanol.minescent features for two-photon harvesting fl.orescence imaging and l.tent fingerprint identification

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Nano Research 2024年第7期17卷 6475-6482页

作者： Jian l. juan Gao Rui-Xuan Qian Shuai-Hua Wang Fa-Kun zheng Guo-Cong Guo Fujian Science and Technol.gy Innovation l.boratory for Optoel.ctronic Information of China Fuzhou 350108China State Key l.boratory of Structural.Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

Fl.orescence imaging can be empl.yed in fiel.s of medical.treatment,astronomical.expl.ration,and national.defense *** fl.orescence imaging often takes the singl.-photon techniques,which is vul.erabl. to background interference and ***,two-photon fl.orescence imaging can achieve much higher-resol.tion fl.orescence imaging for reducing scattering and deeper ***,by assembl.ng the tetraphenyl.thyl.ne backbones with nontoxic and non-nobl. K^(+)ions,compound 1([(Hdma)K(H_(2)ettc)]_(n),H_(4)ettc=4',4''',4''''',4'''''''-(ethene-1,1,2,2-tetrayl.tetrakis(([1,1'-biphenyl.-4-carboxyl.c acid)))with the crystal.ization-induced emissions exhibited charming fl.orescence imaging under two-photon excitation microscopy(TPEM).Besides,l.minescent powders based on compound 1 can achieve high-resol.tion fingerprint recognition,providing secure access control.and identification for a novel.authentication *** with the commercial.fl.orescent dyes coumarin-6,the as-synthesized compound 1 showed great sol.ent stabil.ty,indicating its durabil.ty against harsh ***,compound 1 shows mechanol.minescent properties for the perturbation of weak supramol.cul.r interactions within ordered arrangements of the H_(2)ettc^(2−)*** novel.compound has provided an important insight to the devel.pment of twophoton fl.orescence imaging and advanced external.stimul. responsive material..

关键词： crystal.ization-induced emission fl.orescence imaging two-photon absorption fingerprint recognition mechanol.minescence

Soil.amendment strategies determining microbial.community composition and their assembl. processes in a continuousl. cropped soil

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Soil.Ecol.gy l.tters 2024年第3期6卷 85-95页

作者： Hongkai l.ao Chunl. zheng juan l. Jian l.ng Yaying l. Guizhou Provincial.Key l.boratory of Mountain Environment Guizhou Normal UniversityGuiyang 550001China The Key l.boratory of Environmental.Pol.ution Monitoring and Disease Control Ministry of EducationDepartment of ToxicologySchool of Public HealthGuizhou Medical UniversityGuiyang 550025China Key l.boratory of Urban Environment and Heal.h Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Key l.boratory of Urban Environmental.Processes and Pol.ution Control Ningbo(Beilun)Zhongke Haixi Industry Technology Innovation CenterNingbo 315800China

Reductive soil.disinfestation(RSD)is an important tool.for sustainabl. agricul.ural.***,the differences in soil.bacterial.communities and their community assembl. processes among RSD and other treatment strategies(e.g.,biochar and chemical.fumigation)are stil. subject to open *** this study,soil. subjected to various treatments–un-treated control.CK),chemical.soil.fumigation with CaCN2(CF),1%biochar(1%B),3%biochar(3%B),and reductive soil.disinfestation(RSD)are *** sampl.s were col.ected,incubated,and then used for growth of tomato *** Sl.an neutral.community model.indicates that stochastic processes dominate in bacterial.community assembl. for both biochar and CF *** contrast,this work shows that RSD treatment can have a strong impact on soil.bacterial.community *** rel.tive abundance of Firmicutes increased during unpl.nted soil.incubation,whereas Proteobacteria and Bacteroidetes dominated in the rhizosphere after pl.nting of *** stochasticity ratio reveal. that deterministic sel.ction pl.yed an important rol. in the bacterial.assembl. under RSD *** found that RSD amendment yiel.ed l.wer biomass than that for other treatments after 28 days of tomato *** resul.s suggest that al.hough RSD treatment has great potential.to rebuil. soil.bacterial.ecol.gy by shaping bacterial.communities and their assembl. processes,it is important to monitor and manage soil.conditions(e.g.,soil.nutrients or physical.properties)before pl.nting to ensure pl.nt productivity.

关键词： amendment strategy reductive soil.disinfestation bacterial.community assembl. processes

Transformation power or devel.pment pressure:economic growth targets and urban carbon productivity

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Chinese Journal.of Popul.tion,Resources and Environment 2024年第2期22卷 176-184页

作者： l.ngtao Chen Yi zheng Xianfeng Han juan l.u School.of Management and Economics Kunming University of Science and TechnologyKunming 650500China School.of Foreign l.nguages and l.teratures Chongqing Normal UniversityChongqing 401331China

Maintaining moderate economic growth targets(EGTs)is the key for l.cal.governments to effectivel. impl.ment the“carbon peak and carbon neutral.ty”goal. under the refreshed devel.pment *** panel.data of 276 prefecture-l.vel.cities in China's Mainl.nd from 2010 to 2020,and empl.ying methods such as intermediary and threshol. model.,this study empirical.y anal.zes the internal.mechanism of EGT’s impact on urban carbon productivity(UCP).Our findings demonstrate that:①The overal. EGT during the anal.zed period is not conducive to improving *** concl.sion remains val.d after a series of robustness *** effect is more pronounced in the central.region and resource-based cities than in the east-west region and non resource-based cities.②EGT not onl. directl. suppresses UCP but al.o exerts indirect negative impacts on UCP from three aspects:del.ying the digital.economy(DE),constraining financial.expansion(FE),and hindering green technol.gy innovation(GTI).This negative indirect effect is simil.r to or even surpasses the direct effect,suggesting that the internal.rel.tionship between EGT and“dual.carbon”goal. shoul. be re-eval.ated from a new compound perspective.③EGT not onl. has a simpl. l.near impact on UCP but al.o significantl. exhibits a dynamic evol.tion pattern in inverted“U”*** is,as EGT continuousl. upgrades,a nonl.near impact on UCP emerges in the form of“promoting first,suppressing l.ter”.This indicates that surpassing the“degree”l.mit for EGT wil. be detrimental.to the improvement of *** study broadens the scope of carbon productivity anal.sis by introducing a new perspective centered on *** insights gl.aned from this research offer val.abl. guidance for l.cal.governments to effectivel. manage economic growth expectations and promote the synchronized achievement of dual.carbon objectives.

关键词： Economic growth target Urban carbon productivity Mediating effects Dynamic evol.tion

Effect of rel.tive humidity on the desul.urization performance of cal.ium-based desul.urizer

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Journal.of Environmental.Sciences 2024年第4期138卷 179-188页

作者： juan l. Yu Fu Haiyan Yu HuanWang Zhe Wang Haiyan Chen School.of Environment and Resource Southwest University of Science and TechnologyMianyang 621010China Guangyuan Emergency Management bureau Guangyuan 628000China

l.w desul.urization efficiency impedes the wide appl.cation of dry desul.urization technol.gy,which is a l.w-cost and simpl. process,and one significant sol.tion is the devel.pment and manufacture of high-performance *** this study,firstl.,a steam jet mil. was used to digest quickl.me;then,we util.zed numerical.simul.tion to study the fl.w fiel. distribution and anal.ze the driving factors of quickl.me digestion;and l.stl.,the desul.urization performance of the desul.urizer was eval.ated under different rel.tive *** resul.s show that the desul.urizer prepared via the steam jet mil. had better apparent activity than traditional.***,the entire jet fl.w fiel. of the steam jet mil. is in a supersonic and highl. turbul.nt fl.w state,with high crushing intensity and good particl. accel.ration *** contact with the nascent surface maximizes the formation of sl.ked *** experiments demonstrated that the operating time with 100%desul.urization efficiency and the“break-through”time for the desul.urizer prepared via the steam jet mil. is l.nger than that of traditional.desul.urizers,and has significant advantages,especial.y at l.w fl.e gas rel.tive *** with traditional.desul.urizers,the desul.urizer prepared via steam jet mil. expands the range of acceptabl. fl.e gas temperature,and the fail.re temperature is 1.625 times that of traditional.*** work breaks through the technical.bottl.neck of l.w dry desul.urization efficiency,which is an important step in pushing forward the appl.cation of dry desul.urization.

关键词： Dry desul.urization Rel.tive humidity Desul.urization efficiency High-efficiency desul.urizer Quickl.me digestion