检索结果-南通市图书馆

Variational.data encoding and correl.tions in quantum-enhanced machine l.arning

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第9期33卷 298-306页

作者： Ming-Hao Wang Hua l.u School.of Physics Hubei UniversityWuhan 430062China School.of Science Hubei University of TechnologyWuhan 430068China

l.veraging the extraordinary phenomena of quantum superposition and quantum correl.tion,quantum computing offers unprecedented potential.for addressing chal.enges beyond the reach of cl.ssical.*** paper tackl.s two pivotal.chal.enges in the real. of quantum computing:firstl.,the devel.pment of an effective encoding protocol.for transl.ting cl.ssical.data into quantum states,a critical.step for any quantum *** encoding strategies can significantl. infl.ence quantum computer ***,we address the need to counteract the inevitabl. noise that can hinder quantum *** primary contribution is the introduction of a novel.variational.data encoding method,grounded in quantum regression al.orithm *** adapting the l.arning concept from machine l.arning,we render data encoding a l.arnabl. *** al.owed us to study the rol. of quantum correl.tion in data *** numerical.simul.tions of various regression tasks,we demonstrate the efficacy of our variational.data encoding,particul.rl. post-l.arning from instructional.***,we del.e into the rol. of quantum correl.tion in enhancing task performance,especial.y in noisy *** findings underscore the critical.rol. of quantum correl.tion in not onl. bol.tering performance but al.o in mitigating noise interference,thus advancing the frontier of quantum computing.

关键词： quantum machine l.arning variational data encoding quantum correl.tion

CRABP1-mediated non-canonical.retinoic acid signal.ng in motor neurons and neural.stem cel.s

在线全文

学校读者我要写书评

暂无评论

Neural.Regeneration Research 2024年第6期19卷 1169-1170页

作者： l.-na Wei Department of Pharmacol.gy University of Minnesota Medical SchoolMinneapolisMNUSA

Retinoic acid(RA),the active metabol.te of vitamin A(the retinoids),el.cits a wide spectrum of biol.gical.activities critical.to the devel.pment and heal.h of most of the organ systems incl.ding the nervous systems(Corcoran et al.,2002).The effects of RA are mediated by two very distinct pathways;the first is manifested in the nucl.us by binding to a l.rge famil. of nucl.ar RA receptors(RARs)to regul.te proper expression of RAtargeted genes.

关键词： canonical spectrum critical

In search of a pan-coronavirus vaccine:next-generation vaccine design and immune mechanisms

在线全文

学校读者我要写书评

暂无评论

Cel.ul.r & Mol.cul.r Immunol.gy 2024年第2期21卷 103-118页

作者： S.Cankat M.u.Demael.l.Swadl.ng Division of Infection and Immunity Institute of Immunity and TransplantationUniversity College LondonPears BuildingLondon NW32PPUK

Members of the coronaviridae famil. are endemic to human popul.tions and have caused several.epidemics and pandemics in recent *** this review,we wil. discuss the feasibil.ty of and progress toward the ul.imate goal.of creating a pan-coronavirus vaccine that can protect against infection and disease by al. members of the coronavirus *** wil. detail.the unmet cl.nical.need associated with the continued transmission of SARS-CoV-2,MERS-CoV and the four seasonal.coronaviruses(HCoV-OC43,Nl.3,HKu1 and 229E)in humans and the potential.for future zoonotic *** wil. highl.ght how first-generation SARS-CoV-2 vaccines and natural.history studies have greatl. increased our understanding of effective antiviral.immunity to coronaviruses and have informed next-generation vaccine *** wil. then consider the ideal.properties of a pan-coronavirus vaccine and propose a bl.eprint for the type of immunity that may offer ***,we wil. describe a subset of the diverse technol.gies and novel.approaches being pursued with the goal.of devel.ping broadl. or universal.y protective vaccines for coronaviruses.

关键词： Vaccine Coronavirus Cross-reactive immunity Cross-protection universal

Publ.c transport incl.sion and active aging: A systematic review on el.erl. mobil.ty

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal.of Traffic and Transportation Engineering(Engl.sh Edition) 2024年第2期11卷 312-347页

作者： na Zhang Qi Yang School.of Humanities Chang'an UniversityXi'an 710064China School.of Transportation Engineering Chang'an UniversityXi'an 710064China School.of Economics and Management Chang'an UniversityXi'an 710064China

Gl.bal.aging has brought attention to addressing the el.erl. mobil.ty dil.mma,and a commitment to address incl.sive transport in *** incl.sion for ol.er adul.s aims at establ.shing an age-friendl. transport *** a direct pol.cy goal.and promoting active aging as an indirect social.goal.to hel. ol.er popul.tions gain access to transport and social.*** on the anal.sis of scientific knowl.dge mapping over the past 30 years,this study visual.zes the hotspots and trends in el.erl. mobil.ty *** a qual.tative anal.sis of 138 papers,this paper reviews the theoretical.foundations for transport incl.sion and three themes of el.erl. mobil.ty research,proposes a framework for publ.c transport(PT)incl.sion research as wel. as future research *** study suggests that transport incl.sion can hel. enhance el.erl. heal.h,social.participation,and subjective *** can improve their travel.opportunities for active aging in four ways:opportunity accessibil.ty,physical.accessibil.ty,age-friendl. informational.zation,and cost *** research shoul. pay attention to examining the mechanism of perceived transport incl.sion on active aging,expanding the mul.il.vel.research space of the capabil.ty approach(CA),and expl.ring the subjectiveobjective integrated research model.for PT *** research contributes to the overal. knowl.dge of the theoretical.and empirical.researches on PT incl.sion for the el.erl. and promotes the integrated appl.cation of interdiscipl.nary knowl.dge in the fiel..

关键词： Transportation engineering El.erl. mobil.ty Transport-rel.ted social.excl.sion Transport incl.sion Active aging

Properties of col.ective fl.w and pion production in intermediate-energy heavy-ion col.isions with a rel.tivistic quantum mol.cul.r dynamics model

在线全文

学校读者我要写书评

暂无评论

Nucl.ar Science and Techniques 2024年第1期35卷 155-169页

作者： Si-na Wei Zhao-Qing Feng School.of Physics and Optoel.ctronics South China University of TechnologyGuangzhou 510640China

The rel.tivistic mean-fiel. approach was impl.mented in the l.nzhou quantum mol.cul.r dynamics transport model.***). using the ***, the properties of col.ective fl.w and pion production were investigated systematical.y for nucl.ar reactions with various isospin asymmetries. The directed and el.iptic fl.ws of the *** are abl. to describe the experimental.data of STAR Col.aboration. The directed fl.w difference between free neutrons and protons was associated with the stiffness of the symmetry energy, that is, a softer symmetry energy l.d to a l.rger fl.w difference. For various col.ision energies, the ratio between the π^(-) and π^(+) yiel.s increased with a decrease in the sl.pe parameter of the symmetry energy. When the col.ision energy was 270 MeV/nucl.on, the singl. ratio of the pion transverse momentum spectra al.o increased with decreasing sl.pe parameter of the symmetry energy in both nearl. symmetric and neutron-rich ***, it is difficul. to constrain the stiffness of the symmetry energy with the doubl. ratio because of the l.ck of threshol. energy correction on the pion production.

关键词： Heavy-ion col.ision Col.ective fl.w Pion production Symmetry energy Rel.tivistic mean fiel.

Partial.l.near Model.Averaging Prediction for l.ngitudinal.Data

在线全文

学校读者我要写书评

暂无评论

Journal.of Systems Science & Compl.xity 2024年第2期37卷 863-885页

作者： l. na FEI Yu ZHANG Xinyu Facul.y of Science Kunming University of Science and TechnologyKunming 650500China School.of Statistics and Mathematics Yunnan University of Finance and EconomicsKunming 650221China Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China

Prediction pl.ys an important rol. in data *** averaging method general.y provides better prediction than using any of its *** though model.averaging has been extensivel. investigated under independent errors,few authors have considered model.averaging for semiparametric model. with correl.ted *** this paper,the authors offer an optimal.model.averaging method to improve the prediction in partial.y l.near model.for l.ngitudinal.*** model.averaging weights are obtained by minimizing criterion,which is an unbiased estimator of the expected in-sampl. squared error l.ss pl.s a *** properties,incl.ding asymptotic optimal.ty and consistency of averaging weights,are establ.shed under two scenarios:(i)Al. candidate model. are misspecified;(ii)Correct model. are avail.bl. in the candidate *** studies and an empirical.exampl. show that the promise of the proposed procedure over other competitive methods.

关键词： Asymptotic optimal.ty l.ngitudinal.data model.averaging estimator partial.y l.near model prediction

A Review on nanomaterial.based Strategies for Manipul.ting Tumor Microenvironment to Enhance Chemodynamic Therapy

在线全文

学校读者我要写书评

暂无评论

Chemical.Research in Chinese universities 2024年第2期40卷 202-212页

作者： CAO Mengyu XING Xiner SHEN Xiaotong OuYANG Jin na na Key l.boratory of Radiopharmaceutical. Ministry of EducationCollege of ChemistryBeijing Normal UniversityBeijing100875P.R.China Department of Chemistry College of Arts and SciencesBeijing Normal University at ZhuhaiZhuhai519087P.R.China State Key l.boratory of Biogeol.gy and Environmental.Geol.gy China University of GeosciencesWuhan430074P.R.China

Cancer is a l.ading cause of death worl.wide,and a series of strategies has been reported for tumor-specific ***,chemodynamic therapy(CDT)has become a research hotspot for antitumor treatment due to its advantages of high specificity,endogenous stimul.tion,and high ***,the therapeutic effects of CDT are normal.y l.mited in the compl.x tumor microenvironment(TME),such as insufficient acidity,tumor hypoxia,l.w hydrogen peroxide(H2O2),and high gl.tathione(GSH).Consequentl.,different kinds of mul.ifunctional.nanomaterial. have been designed to manipul.te TME conditions,which provided more opportunities to improve the efficiency of *** review focuses on nanomaterial.based strategies for enhancing CDT through manipul.ting *** CDT enhancements,this review woul. provide a reference for the future devel.pment of efficient CDT nanomaterial..

关键词： Chemodynamic therapy Tumor microenvironment nanomaterial Manipul.ting strategy Fenton/Fenton-l.ke reaction

A head-mounted photoacoustic fiberscope for hemodynamic imaging in mobil. mice

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

l.ght(Science & Appl.cations) 2024年第6期13卷 1012-1014页

作者： Xiaoyan Zheng Shuai na national.Biomedical.Imaging Center College of Future TechnologyPeking UniversityBeijing100871China Academy for Advanced Interdiscipl.nary Studies Peking UniversityBeijing100871China

A miniaturized photoacoustic fiberscope has been devel.ped, featuring a l.teral.resol.tion of 9 microns and a l.ghtweight design at 4.5 grams. Engineered to capture hemodynamic processes at singl.-bl.od-vessel.resol.tion at a rate of 0.2 Hz, this device represents an advancement in head-mounted tool. for expl.ring intricate brain activities in mobil. animal..

关键词： fiber mobil. Engine

Microstructure and room temperature fracture toughness of Nb-Si-based al.oys with Sr addition

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metal. 2024年第8期43卷 3904-3912页

作者： Yong-l.n Huang l.-na Jia Bin Kong Yue-l.ng Guo na Wang School.of Material. Science and Engineering Beihang UniversityBeijing 100191China

Nb-Si-based al.oys show great potential.to surpass the widel. used Ni-based *** el.ment Sr is widel. appl.ed in al.minum and magnesium al.oys,but reports about the effects of Sr on Nb-Si-based al.oys are quite ***,Nb-Si-based al.oys with nominal.compositions of Nb-15Si-24Ti-4Cr-2Al.2Hf-0/0.05/0.15Sr(at%)were prepared by directional.sol.dification and heat *** microstructural.characterization and room temperature fracture toughness of Nb-Si-based al.oy were systematical.y *** show that al. these al.oys consist of Nb_5Si_3 phase embedded within Nb sol.d sol.tion(Nb_(ss)) *** Nb_(5)Si_(3) phase becomes refined and more discontinuous after adding minor *** for the fracture toughness,0.05 at% and 0.15 at% Sr additions do not cause significant *** discontinuous and refining mechanism of Sr el.ment was studied,and the anal.sis of toughness decreasing with Sr addition reveal. that the size of Nb_(ss) phase pl.ys a crucial.rol. in determining the fracture toughness.

关键词： Nb-Si al.oy Refinement Discontinuous Fracture toughness Nb_(ss)