检索结果-南通市图书馆

Probing the scale of new physics in the ZZγ coupling at e^+e^- colliders

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2020年第6期44卷 55-86页

作者： John Ellis Shao-Feng Ge Hong-Jian He rui-qing xiao Department of Physics Kings College LondonStrandLondon WC2R 2LSUKTheoretical Physics DepartmentCERNCH-1211 Geneva 23SwitzerlandNICPBRävala 1010143 TallinnEstonia Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Institute of Modern Physics Tsinghua UniversityBeijing 100084China Center for High Energy Physics Peking UniversityBeijing 100871China

The Z Zγtriple neutral gauge couplings are absent in the Standard Model(SM)at the tree *** receive no contributions from dimension-6 effective operators,but can arise from effective operators of *** study the scale of new physics associated with such dimension-8 operators that can be probed by measuring the reaction e^+e^-→Zγ followed by Z→■■,vv decays,at future e^+e^- colliders including the CEPC,FCC-ee,ILC and *** demonstrate how angular distributions of the final-state mono-photon and leptons can play a key rôle in suppressing SM *** further demonstrate that using electron/positron beam polarizations can significantly improve the signal *** find that the dimension-8 new physics scale can be probed up to the multiTeV region at such lepton colliders.

关键词： neutral triple gauge coupling beyond Standard Model e^+e^-colliders

Efficacy of Chinese Medicine Acupoint Application Combined with Montelukast on Children with Perennial Allergic Rhinitis:A Randomized Controlled Trial

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2020年第11期26卷 845-852页

作者： LI You-jin ZONG Ming DING Li-feng rui xiao-qing MA Bei-yin QIN Li-ping Department of Otorhinolaryngology-Head and Neck Surgery Shanghai Children's Medical CenterShanghai Jiaotong University School of MedicineShanghai(200127)China Department of Clinical Laboratory Shanghai East HospitalSchool of MedicineTong Ji UniversityShanghai(200120)China Department of Chinese Medicine Shanghai Children's Medical CenterShanghai Jiaotong University School of MedicineShanghai(200127)China Department of Medical Genetics and Molecular Diagnostic Laboratory Shanghai Children's Medical CenterShanghai Jiaotong University School of MedicineShanghai(200127)China Department of Chinese Medicine Xinhua HospitalShanghai』aotong University School of MedicineShanghai(200090)China

Objective To evaluate the efficacy of Chinese medicine acupoint application(CMAA)combined with Western medicine for perennial allergic rhinitis(PAR)in *** In this prospective,parallel,randomized,placebo-controlled and single-blind trial from August to September,2017,180 children with PAR were randomly assigned to an integrative group(CMAA and Montelukast),CMAA group(CMAA and placebo tablet),or Montelukast group(placebo CMAA and Montelukast).Participants were applied with CMAA for 6 sessions over 2 weeks,and/or Montelukast Chewable Tablet orally once daily for 12 *** changes in severity of symptoms were measured by Visual Analog Scale(VAS)and rhinitis control assessment test(RCAT)at 0,2,4 and 12 weeks of *** samples were collected for serum interleukin-4,interferon gammaγand T helper type 1(Th1)/Th2 flow cytometric analysis at the time points of 0,4 and 12 *** Eight cases dropped out from the trial,3 in the integrative group,2 in the CMAA group and 3 in the Montelukast *** VAS scores decreased significantly while the RCAT scores increased significantly in all three groups at 4 and 12 weeks compared with baseline(P<0.01 or P<0.05).The VAS scores were significantly lower while the RCAT scores were significantly higher in the integrative and CMAA groups than the Montelukast group at 2 and 4 weeks(P<0.01 or P<0.05).At 2,4 and 12 weeks,the scores of nasal congestion,sneezing,sleep problem,and rhinitis symptom control in the integrative and CMAA groups increased significantly compared with baseline(P<0.01 or P<0.05).The least percentages of Th2 and the most alleviated Th2 shift(highest Th1/Th2)were observed in the integrative group at 12 weeks compared with the other two groups(P<0.05).Conclusion The combination of CMAA with Montelukast might be more effective and appropriate than either option alone for children with PAR.(Registered at Chinese Clinical Trial Register,registration ***-IOR-17012434).

关键词： allergic rhinitis Chinese medicine acupoint application Montelukast interferon gamma/interleukin-4 T helper type 1/T helper type 2

The New Methods for Characterization of Molecular Weight of Supramolecular Polymers

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2024年第10期42卷 1403-1413,I0006页

作者： Hui Liu rui Hu Zi-qing Hu xiao-Fan Ji Key Laboratory of Materials Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Materials Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China

Supramolecular polymers,as a type of dynamic polymers,are subordinate to the interdisciplinary field of polymer chemistry and supramolecular chemistry,whose development has greatly promoted the prosperity of new ***,molecular weight is one of the most important parameters of supramolecular polymers,which affects the physical/chemical properties and processing applications of *** new methods for characterizing the molecular weight of supramolecular polymers is crucial for advancing the development of supramolecular *** this review,we elaborate and summarize three strategies for characterizing the molecular weight of supramolecular polymers that recently reported by our research group according to the characteristics of supramolecular polymers,including(1)the molecular weight distinction corresponding to variable fluorescence colors,(2)matching different molecular weights with different fluorescence lifetime,(3)transforming supramolecular polymers into mechanically interlocked polymers or covalent ***,we also discuss the limitations of current methods for characterizing supramolecular *** hope that this review can promote the development of supramolecular polymers and significantly inspire to exploit new methods to characterizing molecular weight of supramolecular polymers.

关键词： Supramolecular polymers Molecular weight Self-assembly Mechanically interlocked polymers Dynamic polymers

Burning Numbers of Barbells

在线全文

学校读者我要写书评

暂无评论

Acta Mathematicae Applicatae Sinica 2024年第2期40卷 526-538页

作者： Hui-qing LIU rui-ting ZHANG xiao-lan HU Hubei Key Laboratory of Applied Mathematics&Faculty of Mathematics and Statistic Hubei UniversityWuhan 430062China Hubei Key Laboratory of Mathematical Sciences&School of Mathematics and Statistics Central China Normal UniversityWuhan 430079China

Motivated by a discrete-time process intended to measure the speed of the spread of contagion in a graph,the burning number b(G)of a graph G,is defined as the smallest integer k for which there are vertices x1,…xk su... 详细信息

关键词： burning number short/long barbell isometric subtree cycle

Singularity of Software Reliability Models LVLM and LVQM

在线全文

学校读者我要写书评

暂无评论

Wuhan University Journal of Natural Sciences 2000年第2期5卷 150-154页

作者： XU Ren zuo ZHOU rui YANG xiao qing The State Key Laboratory of Software Engineering Wuhan University Wuhan 430072 China

According to the principle, “The failure data is the basis of software reliabilityanalysis”, we built a software reliability expert system (SRES) by adopting the artificialtechnology. By reasoning out the conclusion from the fitting results of failure data of asoftware project, the SRES can recommend users “the most suitable model” as a softwarereliability measurement model. We believe that the SRES can overcome the inconsistency inapplications of software reliability models well. We report investigation results of singularity and parameter estimation methods of models, LVLM and LVQM.

关键词： software reliability measurement models software reliability expert system singularity parameter estimation method LVLM LVQM

On the half-quantized Hall conductance of massive surface electrons in magnetic topological insulator films

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2024年第6期67卷 127-136页

作者： rui Chen Shun-qing Shen Department of Physics The University of Hong KongHong Kong 999077China Department of Physics Hubei UniversityWuhan 430062China

In topological insulators,massive surface states resulting from local symmetry breaking were thought to exhibit a half-quantized Hall conductance,obtained from the low-energy effective model in an infinite Brillouin *** a lattice model,the surface band is composed of a combination of surface states and bulk *** massive surface states alone may not be enough to support an exact one-half quantized surface Hall conductance in a finite Brillouin zone and the whole surface band always gives an integer quantized Hall conductance as enforced by the TKNN *** explore this,we investigate the band structures of a lattice model describing the magnetic topological insulator film that supports the axion insulator,Chern insulator,and semi-magnetic topological insulator *** reveal that the gapped and gapless surface bands in the three phases are characterized by an integer-quantized Hall conductance and a half-quantized Hall conductance,*** propose an effective model to describe the three phases and show that the low-energy dispersion of the surface bands inherits from the surface Dirac *** gapped surface band manifests a nearly half-quantized Hall conductance at low energy near the center of Brillouin zone,but is compensated by another nearly half-quantized Hall conductance at high energy near the boundary of Brillouin zone because a single band can only have an integer-quantized Hall *** gapless band hosts a zero Hall conductance at low energy but is compensated by another half-quantized Hall conductance at high energy,and thus the half-quantized Hall conductance can only originate from the gapless ***,we calculate the layer-resolved Hall conductance of the *** conclusion suggests that the individual gapped surface band alone does not support the half-quantized surface Hall effect in a lattice model.

关键词： magnetic topological insulator Dirac equation half-quantized Hall conductance

A Review on the Mullins Effect in Tough Elastomers and Gels

在线全文

学校读者我要写书评

暂无评论

Acta Mechanica Solida Sinica 2024年第2期37卷 181-214页

作者： Lin Zhan Shaoxing Qu rui xiao MOE Key Lab of Disaster Forecast and Control in Engineering College of Mechanics and Construction EngineeringJinan UniversityGuangzhou510632China State Key Laboratory of Fluid Power and Mechatronic System Key Laboratory of Soft Machines and Smart Devices of Zhejiang ProvinceDepartment of Engineering MechanicsZhejiang UniversityHangzhou310027China

Tough elastomers and gels have garnered broad research interest due to their wide-ranging potential ***,during the loading and unloading cycles,a clear stress softening behavior can be observed in many material systems,which is also named as the Mullins *** this work,we aim to provide a complete review of the Mullins effect in soft yet tough materials,specifically focusing on nanocomposite gels,double-network hydrogels,and multi-network *** first revisit the experimental observations for these soft *** then discuss the recent developments of constitutive models,emphasizing novel developments in the damage mechanisms or network *** phenomenological models will also be briefly *** attention is then placed on the anisotropic and multiaxial modeling *** is demonstrated that most of the existing models fail to accurately predict the multiaxial data,posing a significant challenge for developing future anisotropic models tailored for tough gels and elastomers.

关键词： Mullins effect Double-network hydrogels Nanocomposite gels Multi-network elastomers Anisotropic damage model Multiaxial model

In situ formed Mg(BH_(4))_(2) for improving hydrolysis properties of MgH_(2)

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 Magnesium and Alloys 2024年第3期12卷 1204-1214页

作者： Yongyang Zhu Mili Liu liming Zeng Yin Wang Daifeng Wu rui Li qing Zhou Renheng Tang Fangming xiao Institute of Resources Utilization and Rare Earth Development Guangdong Provincial Key Laboratory of Rare Earth Development and ApplicationGuangdong Academy of SciencesGuangzhou 510650China School of Materials Science and Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510641China

The hydrolysis of MgH_(2) delivers high hydrogen capacity(15.2 wt%),which is very attractive for real-time hydrogen ***,the formation of a surface passivation Mg(OH)_(2) layer and the large excess of H_(2)O required to ensure complete hydrolysis are two key challenges for the MgH_(2) hydrolysis ***,a low-cost method is reported to synthesize MgH_(2)@Mg(BH_(4))_(2) composite via ball-milling MgH_(2) with cheap and widely available B_(2)O_(3)(or B(OH)_(3)).By adding small amounts of B_(2)O_(3),the in-situ formed Mg(BH_(4))_(2) could significantly promote the hydrolysis of MgH_(2).In particular,the MgH_(2)–10 wt%B_(2)O_(3) composite releases 1330.7 mL·g^(−1) H_(2)(close to 80%theoretical hydrogen generation H_(2))in H_(2)O and 1520.4 mL·g^(−1) H_(2)(about 95%)in 0.5 M MgCl_(2) in 60 min at 26℃ with hydrolysis rate of 736.9 mL·g^(−1)·min^(−1) and 960.9 mL·g^(−1)·min^(−1) H_(2) during the first minute of the hydrolysis,*** addition,the MgCl_(2) solution allows repeated use by filtering and exhibits high cycle stability(20 cycles),therefore leading to much reduced capacity loss caused by the excess H_(2)*** show that by introducing B_(2)O_(3) and recycling the 0.5 M MgCl_(2) solution,the system hydrogen capacity can approach 5.9 wt%,providing a promising hydrogen generation scheme to supply hydrogen to the fuel cells.

关键词： Hydrolysis MgH_(2) Mg(BH_(4))_(2) Hydrogen generation B_(2)O_(3) MgCl_(2)

Plasma-assisted ammonia synthesis under mild conditions for hydrogen and electricity storage:Mechanisms,pathways,and application prospects

在线全文

学校读者我要写书评

暂无评论

Frontiers in Energy 2024年第4期18卷 418-435页

作者： Feng GONG Yuhang JING rui xiao Key Laboratory of Energy Thermal Conversion and Process Measurement and Control of the Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 210096China

Ammonia,with its high hydrogen storage density of 17.7 wt.%(mass fraction),cleanliness,efficiency,and renewability,presents itself as a promising zero-carbon ***,the traditional Haber−Bosch(H−B)process for ammonia synthesis necessitates high temperature and pressure,resulting in over 420 million tons of carbon dioxide emissions annually,and relies on fossil fuel *** contrast,dielectric barrier discharge(DBD)plasma-assisted ammonia synthesis operates at low temperatures and atmospheric pressures,utilizing nitrogen and hydrogen radicals excited by energetic electrons,offering a potential alternative to the H−B *** method can be effectively coupled with renewable energy sources(such as solar and wind)for environmentally friendly,distributed,and efficient ammonia *** review delves into a comprehensive analysis of the low-temperature DBD plasma-assisted ammonia synthesis technology at atmospheric pressure,covering the reaction pathway,mechanism,and catalyst system involved in plasma nitrogen *** from current research,it evaluates the economic feasibility of the DBD plasmaassisted ammonia synthesis technology,analyzes existing dilemmas and challenges,and provides insights and recommendations for the future of nonthermal plasma ammonia processes.

关键词： plasma catalysis nitrogen fixation ammonia synthesis hydrogen storage catalyst carbon neutralization