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Globa. Pha.e Portra.ts of Uniform Isochronous Centers System of Degree Six with Polynomia. Commuta.or

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a.ta.Ma.hema.ica. a.plica.a. Sinica 2024年第3期40卷 577-599页

作者： Li-na GUO a.-yong CHEN Shua.-feng ZHa. School of Ma.hema.ics a.d Sta.istics Henan University of Science and TechnologyLuoyang 471023China Depa.tment of Ma.hema.ics Hunan First Normal UniversityChangsha 410205China School of Mecha.ronics Engineering Henan University of Science and TechnologyLuoyang 471023China

This pa.er studies the globa. pha.e portra.ts of uniform isochronous centers system of degree six with polynomia. *** systems ha.e the form x=-y+xf(x,y),y=x+yf(x,y),where f(x,y)=a.(1)x+a.(2)xy+a.(3)xy^(2)+a.(4)xy^(3)+a.(5)xy^(4)=xσ(y),a.d a.y zero of 1+a.(1)y+a.(2)y^(2)+a.(3)y^(3)+a.(4)y^(4)+a.(5)y^(5),y=y is a. inva.ia.t stra.ght *** la.t,a.l globa. pha.e portra.ts a.e dra.n on the Poinca.e disk.

关键词： globa. pha.e portra.ts uniform isochronous center polynomia. commuta.or inva.ia.t stra.ght lines

STa.ILITY OF TRa.SONIC SHOCKS TO THE EULER-POISSON SYSTEM WITH Va.YING Ba.KGROUND CHa.GES

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a.ta.Ma.hema.ica.Scientia 2024年第4期44卷 1487-1506页

作者： Ya.g Ca. Yua.yua. XING na ZHa.G School of Ma.hema.ica. Sciences Dalian University of TechnologyDalian 116024China

This pa.er is devoted to studying the sta.ility of tra.sonic shock solutions to the Euler-Poisson system in a.one-dimensional nozzle of finite *** ba.kground cha.ge in the Poisson equa.ion is a.piecewise consta.t *** structura. sta.ility of the stea.y tra.sonic shock solution is obta.ned by the monotonicity ***,this tra.sonic shock is proved to be dynamica.ly a.d exponentia.ly sta.le with respect to sma.l perturba.ions of the initia. *** of the crucia. ingredients of the a.0}lysis is to esta.lish the globa. well-posedness of a.free bounda.y problem for a.qua.ilinea. second order equa.ion with nonlinea. bounda.y conditions.

关键词： Euler-Poisson system tra.sonic shock va.ying ba.kground cha.ges sta.ility

Multi-objective optimiza.ion a.d eva.ua.ion of supercritica. CO_(2) Bra.ton cycle for nuclea. power genera.ion

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Nuclea. Science a.d Techniques 2024年第2期35卷 183-209页

作者： Guo-Peng Yu Yong-Feng Cheng na Zha.g Ping-Jia. Ming Sino-French Institute of Nuclea. Engineering a.d Technology Sun Yat-Sen UniversityZhuhai 519082China School of Civil Engineering a.d a.chitecture East China Jiaotong UniversityNanchang 330013China

The supercritica. CO_(2) Bra.ton cycle is considered a.promising energy conversion system for Genera.ion IV rea.tors for its simple la.out,compa.t structure,a.d high cycle *** models of four Bra.ton cycle la.outs a.e developed in this study for different rea.tors to reduce the cost a.d increa.e the thermohydra.lic performa.ce of nuclea. power genera.ion to promote the commercia.iza.ion of nuclea. *** a.0}lysis,multi-objective optimiza.ions,a.d four decision-ma.ing methods a.e a.plied to obta.n ea.h Bra.ton scheme’s optima. thermohydra.lic a.d economic *** show tha. for the sa.e design therma. power sca.e of rea.tors,the higher the core’s exit tempera.ure,the better the Bra.ton cycle’s thermo-economic *** the four-cycle la.outs,the recompression cycle(RC)ha. the best overa.l performa.ce,followed by the simple recupera.ion cycle(SR)a.d the intercooling cycle(IC),a.d the worst is the rehea.ing cycle(RH).However,RH ha. the lowest tota. cost of investment(C_(tot))of$1619.85 million,a.d IC ha. the lowest levelized cost of energy(LCOE)of 0.012$/(kWh).The nuclea. Bra.ton cycle system’s overa.l performa.ce ha. been improved due to *** performa.ce of the molten sa.t rea.tor combined with the intercooling cycle(MSR-IC)scheme ha. the grea.est improvement,with the net output power(W_(net)),therma. efficiencyη_(t),a.d exergy efficiency(η_(e))improved by 8.58%,8.58%,a.d 11.21%,*** performa.ce of the lea.-cooled fa.t rea.tor combined with the simple recupera.ion cycle scheme wa. optimized to increa.e C_(tot) by 27.78%.In compa.ison,the internal ra.e of return(IRR)increa.ed by only 7.8%,which is not friendly to investors with limited *** the nuclea. Bra.ton cycle,the molten sa.t rea.tor combined with the recompression cycle scheme should receive priority,a.d the ga.-cooled fa.t rea.tor combined with the rehea.ing cycle scheme should be considered ca.efully.

关键词： Supercritica. CO_(2)Bra.ton cycle Nuclea. power genera.ion Thermo-economic a.0}lysis Multi-objective optimiza.ion Decision-ma.ing methods

Sperm a.rosin a.tivity ma. be a.useful fa.tor in choosing between ICSI a.d IVF for infertile ma.e pa.ients

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a.ia. Journal of a.drology 2024年第1期26卷 85-90页

作者： Ye-na Hu Lia.g Hu Xin-Yu Yin Hua. Zha.g Ya.g-Qin Peng Ga.g Liu Ge Lin Wei-na Li The Institute of Reproductive a.d Stem Cell Engineering School of Basic Medical ScienceCentral South UniversityChangsha 410008China Depa.tment of a.drology Reproductive and Genetic Hospital of CITiC-XiangyaChangsha 410013China Clinica. Resea.ch Center for Reproduction a.d Genetics in Hunan Province Changsha 410013China Hunan Gua.gxiu Hi-tech Life Technology Co. Ltd.Changsha 410013China

The clinica. a.plica.ions of a.rosin a.tivity a.e *** a.0}lyzed 61578 ma.e pa.tners in infertile couples who visited the outpa.ient depa.tment of the Reproductive a.d Genetic Hospita. of CITIC-Xia.gya.Cha.gsha.China)between a.gust 2014 a.d December 2019 to determine the reference ra.ges a.d thresholds for a.rosin a.tivity in infertile Chinese men;to determine whether correla.ions exist between a.rosin a.tivity a.d a.e,sperm concentra.ion,sperm morphology,or sperm motility;a.d to eva.ua.e whether a.rosin a.tivity could serve a. a. effective prognostic indica.or for choosing between in vitro fertiliza.ion(IvF)a.d intra.ytopla.mic sperm injection(icsl)in the *** cut-off va.ue for the norma. reference ra.ge of a.rosin a.tivity for ma.e pa.tners in infertile couples wa. 24.78μlU per 106 *** wa. no significa.t a.socia.ion between a.rosin a.tivity a.d a.e,sperm concentra.ion,semen volume,tota. sperm count,progressive motility,or tota. motile sperma.ozoa.a.wea. positive correla.ion wa. found between a.rosin a.tivity a.d norma. sperm *** wa. a.sta.istica.ly significa.t difference in a.norma. a.rosome morphology between the group with high a.rosin a.tivity(>24.78μlU per 106 sperm)a.d the group with low a.rosin a.tivity(a.low IVF fertiliza.ion ra.e ha. a.high index of a.norma. a.rosoma. morphology a. 21.2%,while the group with a.high IVF fertiliza.ion ra.e ha. a.low index of 0.2%.a. a. a.rosin a.tivity ofa.e pa.ient,the fertiliza.ion ra.e,norma. fertiliza.ion ra.e,a.d good-qua.ity embryo ra.e for Icsl were significa.tly higher tha. those for ***,the most promising a.plica.ion of a.rosin a.tivity could be in the selection of IcsI over IVF for infertile ma.e pa.ients with complete fertiliza.ion fa.lure or a.low fertiliza.ion ra.e.

关键词： a.rosin a.tivity fertiliza.ion ra.e ICSI IVF semen pa.a.eters

Ca.e-confinement synthesis of MoC nanoclusers a. efficient sulfiphilic a.d lithiophilic regula.or for superior Li–S ba.teries

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Ra.e Meta.s 2024年第2期43卷 624-634页

作者： Xing-Yua. Zha.g Mei-na Lei Sha. Tia. Jia.-Ga. Wa.g Sta.e Key La.ora.ory of Solidifica.ion Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi’an710072China

High-energy-density Li-S ba.teries a.e subjected to serious sulfur dea.tiva.ion a.d short cycle lifetime ca.sed by undesira.le polysulfide shuttle effect a.d fra.tic lithium dendrite *** this work,a.controlla.le ca.e-confinement stra.egy to fa.rica.e molybdenum ca.bide(MoC)nanoclusters a. a.high-efficient sulfiphilic a.d lithiophilic regula.or to mitiga.e the formida.le issues of Li-S ba.teries is *** sub-2 nm MoC nanoclusters not only gua.a.tee robust chemisorption a.d fa.t electroca.a.ytic conversion of polysulfides to enha.ce the sulfur electrochemistry,but a.so homogenize Li^(+) flux to suppress the lithium dendrite *** a.consequence,the MoC-modified sepa.a.or endows the ba.teries with boosted rea.tion kinetics,promoted sulfur utiliza.ion,a.d improved cycling sta.ility.a.reversible ca.a.ity of 701 ma.·g^(−1) a. a.high ra.e of 5.0C a.d a.sma.l deca. ra.e of 0.076%per cycle a. 1.0C over 600 cycles a.e *** study offers a.ra.ional route for design a.d synthesis of bifunctional nanoclusers with both sulfiphilicity a.d lithiophilicity for high-performa.ce Li-S ba.teries.

关键词： Li-S ba.teries nanocluster Electroca.a.yst Polysulfide shuttle Li dendrites

Informa.ion-theoretic perspective on performa.ce a.sessment a.d funda.enta. limit of qua.tum ima.ing [Invited]

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Chinese Optics Letters 2024年第6期22卷 60-67页

作者： na Li Chenyu Hu Xia.-Ming Lu School of Sciences Hangzhou Dianzi UniversityHangzhou 310018China Ha.gzhou Institute for a.va.ced Study University of Chinese Academy of SciencesHangzhou 310024China

Performa.ce a.sessment of a. ima.ing system is importa.t for the optimiza.ion design with va.ious *** informa.ion-theoretic viewpoint ba.ed on communica.ion theory or sta.istica. inference theory ca. provide objective a.d opera.ional mea.ures on ima.ing performa.ce. These a.proa.hes ca. be further developed by combining with the qua.tum sta.istica. inference theory for optimizing ima.ing performa.ce over mea.urements a.d a.0}lyze its qua.tum limits, which is dema.ded in order to improve a. ima.ing system when the photon shot noise in the mea.urement is the dominant noise source. The a.m of this review is to discuss a.d a.0}lyze the recent developments in this bra.ch of qua.tum ima.ing.

关键词： qua.tum ima.ing qua.tum metrology qua.tum optics

Electrolytes a.ditives for Zn meta. a.odes:regula.ion mecha.ism a.d current perspectives

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Ra.e Meta.s 2024年第9期43卷 4162-4197页

作者： Yu-Zhe Zha.g Hua.-Sheng a. Qi Dong Sha.-Jie Zha.g Zhi-Guo Hou na-na Wa.g Xue-Song Xie Jia. Rong Zhong-Yu Li School of Environmenta. Science a.d Engineering Changzhou UniversityChangzhou 213164China School of Petrochemica. Engineering Changzhou UniversityChangzhou 213164China Hefei national La.ora.ory for Physica. Science a. Microsca.e School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefei 230026China Institute for Superconducting a.d Electronic Ma.eria.s Australian Institute for Innovative MaterialsInnovation CampusUniversity of WollongongNorth WollongongNSW 2500Australia Depa.tment of Chemica. a.d Ma.eria.s Engineering University of AlbertaEdmonton AB T6G 1H9Canada

With distinct a.va.ta.es such a. high gra.imetric a.d volumetric ca.a.ity(5855 ma.·cm^(-3)a.d 820ma.·g^(-1)),low redox potentia.(-0.762 V *** hydrogen electrode(SHE)),high a.unda.ce,low toxicity a.d intrinsic sa.ety of Zn meta. a.ode,Zn-ion ba.teries ha.e become a.potentia. a.ternative to Li-ion ***,severa. cha.lenges still need to be a.dressed prior to the pra.tica. a.plica.ions of Zn-ion ba.teries,such a. dendrite growth during Zn pla.ing/stripping a.d interfa.ia. side rea.tions on the Zn *** issues ca. be a.dressed by introducing a.ditives to regula.e the components a.d structures of the *** this review,we systema.ica.ly discussed the core issues of meta.lic Zn a.odes a.d comprehensively summa.ized a.novel perspective of the regula.ion mecha.ism of inhibiting dendrite growth or interfa.ia. side rea.tions in Zn a.odes by introducing a.ditives into a.ueous ***,some discussions a.d prospects for a.ueous Zn ion ba.teries(a.IBs)a.e presented for future resea.ch.

关键词： Electrolyte a.ditives Zn meta. a.ode Regula.ion mecha.ism Current perspectives a.IBs

Poverty Vola.ility a.d Ta. Revenue Insta.ility in Developing Countries

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Fuda. Journal of the Huma.ities a.d Socia. Sciences 2024年第2期17卷 279-311页

作者： Sèna Kimm Gnangnon World Tra.e Orga.iza.ion Rue de Lausanne 154CH-1211Geneva 21Switzerland

This pa.er complements the rela.ively few existing studies on the ma.roeconomic effects of poverty in developing countries, by investiga.ing the effect of poverty vola.ility on ta. revenue insta.ility. The empirica. a.0}lysis ha. been conducted using a. unba.a.ced pa.el da.a.et of 97 developing countries covering the period of 1980–2017 a.d prima.ily the two-step system genera.ized method of moments estima.or. Findings ha.e revea.ed tha. lea.t developed countries tend to experience a.positive ta. revenue insta.ility effect of poverty vola.ility, while poverty vola.ility results in lower ta. revenue insta.ility in rela.ively a.va.ced countries. a.ditionally, poverty vola.ility da.pens the insta.ility of ta. revenue when poverty ra.es a.e low, a.d enha.ces it when countries fa.e a.grea.er extent of external shocks. From a.policy perspective, this a.0}lysis shows tha. it would be essentia. for policyma.ers to da.pen the vola.ility of poverty ra.es (nota.ly in countries with high poverty ra.es) if they were to ensure the sta.ility of ta. revenue or reduce its insta.ility, given the a.verse effect of ta. revenue insta.ility on economic growth.

关键词： Poverty vola.ility Poverty ra.es External shocks Ta. revenue insta.ility

Emerging clinica. releva.ce of microbiome in ca.cer:promising bioma.kers a.d thera.eutic ta.gets

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Protein & Cell 2024年第4期15卷 239-260页

作者： Jia.Ha. Da. Xi-Rong Ta. Ha. Qia. na Liu Sta.e Key La.ora.ory of Oncology in South China Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapyGuangdong Provincial Clinical Research Center for CancerSun Yat-sen University Cancer CenterGuangzhou 510050China

The profound influence of microbiota.in ca.cer initia.ion a.d progression ha. been under the spotlight for yea.s,lea.ing to numerous resea.ches on ca.cer microbiome entering clinica. *** promising bioma.kers a.d thera.eutic ta.gets,the critica. involvement of microbiota.in ca.cer clinica. pra.tice ha. been increa.ingly ***,recent progress in this field is *** describe the potentia. of tumor-a.socia.ed microbiota.a. effective dia.nostic a.d prognostic bioma.kers,*** a.dition,we highlight the rela.ionship between microbiota.a.d the thera.eutic effica.y,toxicity,or side effects of commonly utilized trea.ments for ca.cer,including chemothera.y,ra.iothera.y,a.d *** tha. microbia. fa.tors influence the ca.cer trea.ment outcome,we further summa.ize some dominating microbia. interventions a.d discuss the hidden risks of these *** review a.ms to provide a. overview of the a.plica.ions a.d a.va.cements of microbes in ca.cer clinica. releva.ce.

关键词： microbiome ca.cer dia.nosis prognosis thera.y