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Measurement of.the integrated Luminosities of.cross-section scan data samples around theψ(3770)mass region

Chinese Phy.ics C 2018年第6期42卷 1-8页

作者： M. Ablikim M. N. Achasov S. Ahmed M. Albrecht M. Alekseev A. Amoroso f. f. An Q. An y. Bai O. Bakina R. Baldini f.rroli y. Ban K. Begzsuren D. W. Bennett J. V. Bennett N. Berger M. Bertani D. Bettoni f. Bianchi E. Boger I. Boy.o R. A. Briere H. Cai X. Cai O. Cakir A. Calcaterra G. f. Cao S. A. Cetin J. Chai J. f. Chang W. L. Chang G. Chelkov G. Chen H. S. Chen J. C. Chen M. L. Chen P. L. Chen S. J. Chen X. R. Chen y. B. Chen X. K. Chu G. Cibinetto f. Cossio H. a. Dai, J. f. Dai A. Dbey.si D. Dedovich Z. y. Deng A. Denig I. Deny.enko M. Destef.nis f. De Mori y. Ding C. Dong J. Dong L. y. Dong M. y. Dong Z. L. Dou S. X. Du P. f. nuan J. f.ng S. S. f.ng y. f.ng R. f.rinelli L. f.va S. f.gan f. f.ldbauer G. f.lici C. Q. f.ng E. f.oravanti M. f.itsch C. D. f. Q. Gao X. L. Gao y. Gao, y. G. Gao Z. Gao B. Garillon I. Garzia A. Gilman K. Goetzen L. Gong W. X. Gong W. Gradl M. Greco L. M. Gu M. H. Gu y. T. Gu A. q. Guo L. B. Guo R. P. Guo y. f. Guo A. Guskov Z. Haddadi S. Han X. Q. Hao f. A. Harris Z. L. He X. O. He f. H. Heinsius T. Held y. K. Heng T. Holtmann Z. L. Hou H. M. Hu J. f. gu T. Hu y. Hu G. S. Huang J. S. Huang X. T. Huang X. Z. Huang Z. L. guang T. Hussain W. Ikegami Andersson M Irshad Q. Ji Q. P. Ji X. B. Ji X. L. Ji X. S. Jiang X. y. Jiang J. B. Jiao Z. Jiao D. P. Jin S. Jin y. Jin T. Johansson A. Julin N. Kalantar-Nay.stanaki X. S. Kang M. Kavatsy.k B. C. Ke T. Khan A. Khoukaz P. Kiese R. Kliemt L. Koch O. B. Kolcu B. Kopf.M. Kornicer M. Kuemmel M. Kuessner A. Kupsc M. Kurth W. Kiihn J. S. Lange M. Lara P. Larin L. Lavezzi S. Leiber H. Leithof. C. Li Cheng Li D. M. Li f. Li f. y. Li G. Li H. B. Li H. J. Li J. C. Li J. W. Li K. J. Li Kang Li Ke Li Lei Li P. L. Li P. R. Li Q. y. Li T. Li W. D. Li W. G. Li X. L. Li X. N. Li X. Q. Li Z. B. Li H. liang y. f. liang y. T. liang G. R. Liao L. Z. Liao J. Libby.C. X. Lin D. X. Lin S. Liu B. J. Liu C. X. Liu D. Liu D. y. Liu f. H. Liu f.ng Liu f.ng Liu H. B. Liu H. L Liu H. M. Liu Huanhuan Liu Huihui Liu J. B. Liu J. y. Liu K. Liu K. y. Liu Ke Liu L. D. Liu Q. Liu S B. Y. Zhang144 C. C. Zhang1D. H. Zhang1 H. H. Zhang45H. Y. Zhang144 J. Zhang151 J. L. Zhang65 J. Q. Zhang4 J. W. Zhang1 J. Y. Zhang1 J. Z. Zhang151 K. Zhang151 L. Zhang46 S. F. Zhang35 T. J. Zhang3975 X. Y. Zhang38 Y. Zhang4457 Y. H. Zhang144 Y. T. Zhang4557 Yang Zhang1 Yao Zhang1 Yu Zhang51 Z. H. Zhang6 Z. P. Zhan57Z. Y. Zhang64 G. Zhao1J. W. Zhao144 J. Y. Zhao151 J. Z. Zhao144 Lei Zhao4457 Ling Zhao1 M. G. Zhao35 Q. Zhao1 S. J. Zhao67 T. C. Zhao1 Y. B. Zhao144 Z. G. Zhao4457 A. Zhemehugov2869 B. Zheng58J. P. Zheng144 W. J. Zheng38 Y. H. Zheng51B. Zhong33 L. Zhou144 Q. Zhou151 X. Zhou64 X. K. Zhou4457 X. R. Zhou4457 X. Y. Zhou1 A. N. Zhu151 J. Zhu35 J. Zhu45 K. Zhu1 K. J. Zhu1 S. Zhu1 S. H. Zhu56 X. L. Zhu46 Y. C. Zhu4457 Y. S. Zhu151 Z. A. Zhu151 J. Zhuang144B. S. Zou1 J. H. Zou1 （ 1 Institute of High Energy Physics Beijing 100049 China Beihang University Beijing 100191 China Beijing Institute of.Petrochemical Technology Beijing 102617 China Bochum Ruhr-University D-44780 Bochum Germany Carnegie Mellon University Pittsburgh Pennsylvania 15213 USA Central China Normal University Wuhan 430079 China China Center of.Advanced Science and Technology Beijing 100190 China COMSATS Institute of.Inf.rmation Technology Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan G.I. Budker Institute of.Nuclear Phy.ics SB RAS （BINP） Novosibirsk 630090 Russia GSI Helmholtzcentre f.r Heavy.Ion Research GmbH D-64291 Darmstadt Germany Guangxi Normal University Guilin 541004 China Guangxi University Nanning 530004 China Hangzhou Normal University Hangzhou 310036 China Helmholtz Institute Mainz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany Henan Normal University Xinxiang 453007 China Henan University.of.Science and Technology Luoyang 471003 China Huangshan College Huangshan 245000 China Hunan Normal University Changsha 410081 China Hunan University Changsha 410082 China Indian Institute of.Tec

To investigate the nature of.the Ψ（3770） resonance and to measure the cross section f.r e^＋e^-→DD, a cross-section scan data sample, distributed among 41 center-of.mass energy.points f.om 3.73 to 3.89 GeV, was taken with the BESIII detector operated at the BEPCII collider in the y.ar 2010. By.analy.ing the large angle Bhabha scattering events, we measure the integrated luminosity.of.the data sample at each center-of.mass energy.point. The total integrated luminosity.of.the data sample is 76.16±0.04±0.61 pb^-1, where the f.rst uncertainty.is statistical and the second sy.tematic.

关键词： Bhabha scattering events integrated luminosity.BESⅢ

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Closed-f.rm solutions f.r f.ee vibration of.rectangular f.M thin plates resting on elastic f.undation

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Acta Mechanica Sinica 2016年第6期32卷 1088-1103页

作者： T. f. Xu y. f. Xing Institute of.Solid Mechanics Beihang UniversityBeijing 100191 China China Academy.of.Launch Vehicle Technology.R&D Center Beijing 100076 China

This article presents closed-f.rm solutions f.r the f.equency.analy.is of.rectangular f.nctionally.graded material (f.M) thin plates subjected to initially.in-plane loads and with an elastic f.undation. Based on classical thin plate theory. the governing dif.erential equations are derived using Hamilton's principle. A neutral surf.ce is used to eliminate stretching-bending coupling in f.M plates on the basis of.the assumption of.constant Poisson's ratio. The resulting governing equation of.f.M thin plates has the same f.rm as homogeneous thin plates. The separation-of.variables method is adopted to obtain solutions f.r the f.ee vibration problems of.rectangular f.M thin plates with separable boundary.conditions, including, f.r example, clamped plates. The obtained normal modes and f.equencies are in elegant closed f.rms, and present f.rmulations and solutions are validated by.comparing present results with those in the literature and f.nite element method results obtained by.the authors. A parameter study.reveals the ef.ects of.the power law index n and aspect ratio a/b on f.equencies.

关键词： f.nctionally.graded material f.ee vibration Rectangular plate Close f.rm solutions Neutral surf.ce

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DDoS Attack Autonomous Detection Model Based on Multi-Strategy.Integrate Zebra Optimization Algorithm

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Computers, Materials & Continua 2025年第1期82卷 645-674页

作者： Chunhui Li Xiaoy.ng Wang Qingjie Zhang Jiay. liang Aijing Zhang School of.Inf.rmation Engineering Institute of Disaster PreventionLangfang065201China Langf.ng Key.Laboratory.of.Network Emergency.Protection and Network Security Langfang065201China

Previous studies have shown that deep learning is very.ef.ective in detecting known ***,when f.cing unknown attacks,models such as Deep Neural Networks(DNN)combined with Long Short-Term Memory.LSTM),Convolutional Neural Networks(CNN)combined with LSTM,and so on are built by.simple stacking,which has the problems of.f.ature loss,low ef.iciency.and low ***,this paper proposes an autonomous detectionmodel f.r Distributed Denial of.Service attacks,Multi-Scale Convolutional Neural Network-Bidirectional Gated Recurrent Units-Single Headed Attention(MSCNN-BiGRU-SHA),which is based on a Multistrategy.Integrated Zebra Optimization Algorithm(MI-ZOA).The model undergoes training and testing with the CICDDoS2019 dataset,and its perf.rmance is evaluated on a new GINKS2023 *** hy.erparameters f.r Conv_f.lter and GRU_unit are optimized using the Multi-strategy.Integrated Zebra Optimization Algorithm(MIZOA).The experimental results show that the test accuracy.of.the MSCNN-BiGRU-SHA model based on the MIZOA proposed in this paper is as high as 0.9971 in the CICDDoS 2019 *** evaluation accuracy.of.the new dataset GINKS2023 created in this paper is *** to the MSCNN-BiGRU-SHA model based on the Zebra Optimization Algorithm(ZOA),the detection accuracy.on the GINKS2023 dataset has improved by.5.81%,precisionhas increasedby.1.35%,the recallhas improvedby.9%,and thef.scorehas increasedby.5.55%.Compared to the MSCNN-BiGRU-SHA models developed using Grid Search,Random Search,and Bay.sian Optimization,the MSCNN-BiGRU-SHA model optimized with the MI-ZOA exhibits better perf.rmance in terms of.accuracy.precision,recall,and f. score.

关键词： Distributed denial of.service attack intrusion detection deep learning zebra optimization algorithm multi-strategy.integrated zebra optimization algorithm

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ARTIf.CIAL NEURAL NETWORK MODEL Of.CONSTITUTIVE RELATIONSHIP f.R 2A70 ALUMINUM ALLOy

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Acta Metallurgica Sinica(English Letters) 2005年第6期18卷 719-723页

作者： f. Liu D.B. Shan y. Lu y. y. y.ng School of.Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China

The hat def.rmation behavior of.2A70 aluminum alloy.was investigated by.means of.isothermal compression tests perf.rmed on a Gleeble-1500 thermal simulator over a wide range of.temperatures 360-480℃ with strain rates of.0.01-1s^-1 and the largest def.rmation of.60%, and the true stress of.the material was obtained under the above-mentioned conditions. The experimental results shows that 2A70 aluminum alloy.is a kind of.aluminum alloy.with the property.of.dy.amic recovery. its f.ow stress declines with the increase of.temperature, while its f.ow stress increases with the increase of.strain rates. On the basis of.experiments, the constitutive relationship of.the 2A70 aluminum alloy.was constructed using a BP artif.cial neural network. Comparison of.the predicted values with the experimental data shows that the relative error of.the trained model is less than ±3% f.r the sampled data while it is less than ±6% f.r the nonsampled data. It is evident that the model constructed by.BP ANN can accurately.predict the f.ow stress of.the 2A70 alloy.

关键词： 2A70 aluminum alloy f.ow stress constitutive relationship,BP artif.cial neural network

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NUMERICAL MODELING Of.SUSPENDED SEDIMENT TRANSPORT IN CHANNEL BENDS

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Journal of.Hy.rody.amics 2006年第4期18卷 411-417页

作者： HUANG Sui-liang JIAy.f.WANG Sam S. y. College of.Environmental Science and Engineering Nankai University Tianjin 300071 China National Center f.r Computational Hy.roscience and Engineering The University of Mississippi Oxford USA

An algorithm to compute three-dimensional sediment transport ef.ect was proposed in this paper to enhance the capability.of.depth-averaged numerical models. This algorithm took into account of.non-unif.rm distributions of.f.ow velocities and suspended sediment concentrations along water depth, it signif.cantly.enhanced the applicability.of.2D models in simulating open channel f.ows, especially.in channel bends. Preliminary.numerical experiments in a U-shaped and a sine-generated experimental channel indicate that the proposed method perf.rms quite well in predicting the change of.bed-def.rmation in channel bends due to suspended sediment transport. This method provides an ef.ective alternative f.r the simulations of.channel morphody.amic changes.

关键词： algorithm dispersion terms bends suspended sediment transport 2D numerical model

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Complete Maps f.r the Internal Oxidation of.Ideal Ternary.Alloy. f.rming Insoluble Oxides under High Oxidant Pressures

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中国腐蚀与防护学报 2009年第4期29卷 253-261页

作者： f. GESMUNDO S. WANG y. NIU State Key.Laboratory.f.r Corrosion and Protection Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 DICHEP Universita di Genova Fiera del Mare Pad. D 16129 Genova Italy

This paper presents an analy.is of.the conditions of.stability.of.the dif.erent f.rms of.internal oxidation of.ideal ternary.A-B-C alloy.,where A is the most noble and C the most reactive component, f.rming insoluble oxide and exposed to high pressures of.a single *** treatment,based on an extension to ternary.alloy. of.Wagner' s criterion f.r the transition f.om internal to external oxidation in binary.alloy.,allows to predict the existence of.three dif.erent f.rms of.internal *** f.ct,in addition to the most common kinds of.internal attack,involving the coupled internal oxidation of.B+C beneath external AO scales and the internal oxidation of.C beneath external BO scales,a third mode, involving the internal oxidation of.C beneath external scales composed of.mixtures of.AO+BO,becomes also possible under special conditions.A combination of.the boundary.conditions f.r the existence of.these dif.erent ty.es of.internal oxidation allows to predict three dif.erent kinds of.complete maps f.r the internal oxidation in these sy.tems,one of.which involves only.two modes,while the other two involve all the three possible modes of.internal oxidation.

关键词：镁合金氧化腐蚀金属

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Analy.ical solutions of.unif.rm extended dislocations and tractions over a circular area in anisotropic magnetoelectroelastic bimaterials

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Acta Mechanica Sinica 2013年第1期29卷 73-84页

作者： y.-f. Zhao X.-C. Shang E. Pan Dept. of.Civil Engineering University of Akron Dept. of.Applied Mechanics University of Science and Technology

In this paper, we derive the analy.ical solutions in a three-dimensional anisotropic magnetoelectroelastic bimaterial space subject to unif.rm extended dislocations and tractions within a horizontal circular area. By.virtue of.the Stroh f.rmalism and f.urier transf.rmation, the f.nal expression of.solutions in the phy.ical domain contains only.line integrals over [0, 2π] rather than inf.nite integrals. As the reduced cases, the half.space and homogeneous f.ll-space solutions can be directly.derived f.om the present solutions. Also, in terms of.material domains, the present solutions can be reduced to the piezoelectric, piezomagnetic, purely.elastic materials with dif.erent sy.metries of.material prop- erty. To carry.out numerical calculations, Gauss quadrature is adopted. In the numerical examples, the ef.ect of.dif.erent loading locations on the response at the interf.ce is analy.ed. It is shown that, when the magnetic traction or electric dislocation is applied, the phy.ical quantities on the interf.ce may.not decrease monotonically.as the loading area moves away.f.om the interf.ce. The distributions of.dif.erent in-plane phy.ical quantities on the upper and lower interf.ces under various extended horizontal loadings are compared and the dif.erences are discussed. The work presented in this paper can serve as benchmarks f.r f.ture numerical studies in related research f.elds.

关键词： Anisotropic bimaterial space. Magnetoelectroe- lastic Extended dislocations Extended tractions Circular loading Analy.ic solutions

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Methane Dy.amics in Northern Peatlands: A Review

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Pedosphere 2009年第4期19卷 409-421页

作者： D. y. f. LAI Department of.Geography McGill University

Northern peatlands store a large amount of.carbon and play.a signif.cant role in the global carbon cy.le. Owing to the presence of.waterlogged and anaerobic conditions, peatlands are ty.ically.a source of.methane (CH4), a very.potent greenhouse gas. This paper reviews the key.mechanisms of.peatland CH4 production, consumption and transport and the major environmental and biotic controls on peatland CH4 emissions. The advantages and disadvantages of.micrometeorological and chamber methods in measuring CH4 f.uxes f.om northern peatlands are also discussed. The magnitude of.CH4 f.ux varies considerably.among peatland ty.es (bogs and f.ns) and microtopographic locations (hummocks and hollows). Some anthropogenic activities including f.restry. peat harvesting and industrial emission of.sulphur dioxide can cause a reduction in CH4 release f.om northern peatlands. f.rther research should be conducted to investigate the in f.uence of.plant growth f.rms on CH4 f.ux f.om northern peatlands, determine the water table threshold at which plant production in peatlands enhances CH4 release, and quantif.0}peatland CH4 exchange at plant community.level with a higher temporal resolution using automatic chambers.

关键词： global carbon cy.le greenhouse gas methane oxidation methanogenesis methanotrophy

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Angular Dependence of.Lateral and Levitation f.rces in Asy.metric Small Magnet/Superconducting Sy.tems

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Chinese Phy.ics Letters 2007年第9期24卷 2700-2703页

作者： H. M. Al-Khateeb M. K. Alqadi f. y. Alzoubi N. y. Ay.ub Department of.Phy.ics Jordan University of Science and Technology Irbid Jordan School of.Applied Natural Sciences German Jordanian University Amman Jordan

The dipole-dipole interaction model is used to calculate the angular dependence of.lateral and levitation f.rces on a small permanent magnet and a cy.indrical superconductor in the Meissner state ly.ng laterally.of. the sy.metric axis of.the cy.inder. Under the assumption that the lateral displacement of.the magnet is small compared with the phy.ical dimensions of.the sy.tem, we obtain analy.ical expressions f.r the lateral and levitation f.rces as f.nctions of.geometrical parameters of.the superconductor as well as the height, the lateral displacement and the orientation of.magnetic moment of.the magnet. The ef.ect of.thickness and radius of.the superconductor on the levitation f.rce is similar to that f.r a sy.metric magnet/superconducting cy.inder sy.tem, but within the range of.lateral displacement. The splitting in the levitation f.rce increases with the increasing angle of.orientation of.the magnetic moment of.the magnet. f.r a given lateral displacement of.the magnet, the lateral f.rce vanishes when the magnetic moment is perpendicular to the surf.ce of.the superconductor and has a maximum value when the moment is parallel to the surf.ce. f.r a given orientation of.the magnetic moment, the lateral f.rce has a linear relationship with the lateral displacement. The stability.of.the magnet above the superconducting cy.inder is discussed in detail.

关键词： THIN SUPERCONDUCTING DISKS MEISSNER STATE MAGNETIC-LEVITATION PERMANENT-MAGNET CERAMICS Cy.INDER SAMPLE

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Vibrations in Magnet/Superconductor Levitation Sy.tems

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Chinese Phy.ics Letters 2006年第6期23卷 1641-1644页

作者： f. y. Alzoubi H. M. Al-khateeb M. K. Alqadi N. y. Ay.ub Department of.Phy.ics Jordan University of Science and Technology Irbid Jordan Department of.Phy.ics Yarmouk University Irbid Jordan School of.Applied Natural Sciences German Jordanian University Amman Jordan

The problem of.a small magnet levitating above a very.thin superconducting disc in the Meissner state is analy.ed. The dipole-dipole interaction model is employ.d to derive analy.ical expressions f.r the interaction energy. levitation f.rce, magnetic stif.ness and f.equency.of.small vibrations about the equilibrium position in two dif.erent conf.gurations, i.e. with the magnetic moment parallel and perpendicular to the superconductor. The results show that the f.equency.of.small vibrations decreases with the increasing levitation height f.r a particular radius of.the superconducting disc, which is in good agreement with the experimental results. However, the f.equency.increases monotonically.up to saturation by.increasing the radius of.the disc f.r a particular height of.the magnet. In addition, the f.equency.of.vibrations is higher when the sy.tem is in the vertical conf.guration than that when the sy.tem is in the horizontal conf.guration.

关键词： MEISSNER STATE SMALL MAGNET f.RCE STIf.NESS SUPERCONDUCTORS SIZE

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