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Continuous recrystallization in pure Al 1.3% Mn investigated by local orientation analysis

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中国有色金属学会会刊：英文版 1999年第3期9卷 451-456页

作者： Yang ping(杨平) 1,2 1. Institut für Metallkunde und Metallphysik der RWTH Aachen Kopernikusstr.14, d-52056, Aachen, Germany 2. department of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, p.R.C 北京科技大学材料科学与工程系北京

Local orientation analysis was used to investigate the continuous recrystallization process in a pure Al 1.3%Mn alloy with the emphasis on the influence of matrix orientations on the subgrain growth and precipitation. Results show that the differences of (mis)orientations in deformed matrices give rise to inhomogeneous subgrain growth and precipitation with respect to precipitate density and morphologies. Moreover, no apparent high angle grain boundaries were developed by accumulation of misorientations during subgrain growth.

关键词： AlMn continuous recrystallization precipitation OdF texturedocument code:A

Reconstruction of Complex Materials by Integral Geometric Measures

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Journal of Materials Science & Technology 2002年第2期18卷 155-158页

作者： Klaus R.MeckeMax-planck-Institut fur Metallforschung, Heisenbergstr.1, d-70569 Stuttgart, Institut fur Theoretische und Angewandte physik, Fakultat fiir physik Universitat Stuttgart, pfaffenwaldring 57, d-70569 Stuttgart, Germany [ Manuscript received Nov Fakultat fur phys. Univ. Stuttgart Pfaffenwaldring 57 D-70569Stuttgart Germany

The goal of much research in computational materials science is to quantify necessary morphological information and then to develop stochastic models which both accurately reflect the material morphology and allow one to estimate macroscopic physical properties. A novel method of characterizing the morphology of disordered systems is presented based on the evolution of a family of integral geometric measures during erosion and dilation operations. The method is used to determine the accuracy of model reconstructions of random systems. It is shown that the use of erosion/dilation operations on the original image leads to a more accurate discrimination of morphology than previous methods.

关键词： porous media Integral geometry Morphology Erosion dilation Minkowski functionals Reconstruction

Three-dimensional Angular Momentum projected Relativistic point-Coupling Approach for Low-Lying Excited States in ^24Mg

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Chinese physics Letters 2008年第10期25卷 3609-3612页

作者：尧江明孟杰 d. pena Arteaga p. Ring School of physics and State Key Laboratory of Nuclear physics and Technology Peking University Beijing 100871 physik-department der Technischen Universitat Munchen D-85748 Garching Germany Institute of Theoretical physics Chinese Academy of Sciences Beijing 100190 Center of Theoretical Nuclear physics National Laboratory of Heavy Ion Accelerator Lanzhou 730000

A tull three-dimensional angular momentum projection on top ot a triaxial relativistic mean-fieid calculation is implemented for the first time. The underlying Lagrangian is a point coupling model and pairing correlations are taken into account by a monopole force. This method is applied for the low-lying excited states in ^24Mg. Good agreement with the experimental data is found for the ground state properties. A minimum in the potential energy surface for the 22^＋ state, with β≈ 0.55,7 γ≈ 10^o, is used as the basis to investigate the rotational energy spectrum as well as the corresponding B（E2） transition probabilities as compared to the available data.

关键词： the power-law exponents precipitation durative abrupt precipitation change

A Coupled Variable Coefficient Modified KdV Equation Arising from a Two-Layer Fluid System

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Communications in Theoretical physics 2007年第12期48卷 961-970页

作者： GAO Yuan~1 and TANG Xiao-Yan~(1,2)~1 department of physics,Shanghai Jiao Tong University,Shanghai 200240,China~2 Institut Für Theoretische physik IV,Fakultt für physik und Astronomie,Ruhr-Universitt Bochum,d-44870 Bochum,Germany department of physics Shanghai Jiao Tong University Institut Fur Theoretische physik IV Fakultat fur Physik und Astronomie Ruhr-Universitat Bochum

A quite general coupled variable coefficient modified KdV (VCmKdV) equation in a two-layer fluid systemis derived by means of the reductive perturbation *** use of the CK's direct method,some similarityreductions of the coupled VCmKdV equation are obtained and their corresponding group explanations are *** exact solutions of the coupled equations are also presented.

关键词： coupled variable coefficient mKdV equation two-layer fluid similarity solution periodic waves

Einfluβ der Bassinform auf die Stromungs-und Temperatur ausbildung bei unterschiedlicher Belastung in einer Glasschmelzwanne

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玻璃搪瓷与眼镜 1986年第2期 11-14页

作者： Helmut pieper,Jens rosenthal Nikolaus Sorg GmbH&Co.KG Lohr/Main Bundesrepublik deutschland Nikolaus Sorg GmbH&Co.KG Lohr/Main Bundesrepublik deutschland

Es sind bisher mehrfach Versuche unternommen worden, die Leistungsf(?)higkeit einer Wanne vor dem Bau zu bestimmen. die mehrfach entwickelten mathematischen Modelle sind unseres Wissens bisher nur zweidimensional und, insbesondere bei komplizierteren Wannenformen, f(?)r den praktiker zu schwierig. das physikalische Modell kann eine Reihe von Erkenntnissen vermitteln, die aber schwer quantifiziorbar

关键词： der Bassinform auf die Stromungs-und Temperatur ausbildung bei unterschiedlicher Belastung in einer Glasschmelzwanne Einflu

雌性斑胸草雀发育和成体期发声核团LMAN中神经元数量的高水平维持(英文)

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动物学报 2005年第2期51卷 257-267页

作者： Barbara E.NIXdORFBERGEILER Viola VON Bohlen und HALBACH department of Zoology Christian-Albrechts-University Kiel GermanyDepartment of Biology Humboldt University Berlin Germany

鸟类的发声和发声学习涉及处于脑中不同水平的相互联系的一些发声核团。在很多鸟类中, 仅雄性鸣啭, 例如在斑胸草雀(Taeniogygia guttata) 中, 雌雄个体间存在显著的性差异, 雌性发声系统和发声核团中的神经元数量显著少于雄性。推测这... 详细信息

鸟类的发声和发声学习涉及处于脑中不同水平的相互联系的一些发声核团。在很多鸟类中, 仅雄性鸣啭, 例如在斑胸草雀(Taeniogygia guttata) 中, 雌雄个体间存在显著的性差异, 雌性发声系统和发声核团中的神经元数量显著少于雄性。推测这种性差异也可能存在于弓状皮质前部大细胞外侧核(LMAN), 但有关这方面的报道还很少。为探讨雌雄鸣禽脑中神经元数量发育的规律, 我们应用半薄切片对斑胸草雀发育不同阶段的神经元数量和密度的变化进行了数量分析。结果表明, 在全部实验组中, 发育10 d和成体雌性LMAN中神经元的密度和神经元数量均无明显变化, 神经元的数量维持在一个较高水平。在雄鸟中, 我们发现在发育早期神经元的数量有极为显著的减少, 这与已有的报道, 即应用非类固醇技术获得的结果相似。LMAN中神经元数量的减少(57%) 一直持续到成体。因此, 成年雌鸟LMAN中的全部神经元数量是雄鸟的4 倍(p<0 001)。推测雌鸟脑中存在较多的神经元数量可能与其在发育和成体期间需维持适当的神经网络有关, 这种神经构筑对于动物种间识别等功能可能具有特殊意义。

关键词：雌性斑胸草雀发育发声核团LMAN 神经元数量发声系统声音控制通路

HYdRAULICS OF STEEp MOUNTAIN STREAMS

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International Journal of Sediment Research 1997年第3期 99-108页

作者： Michael ROSpORT dr.-Ing., Institut fuer Wasserbau und Kulturtechnik, University of Karlsruhe, KaiserstraBe 12, d-76128 Karlsruhe, Germany

As water depth and roughness size are in the same order of magnitude, flow conditions in steep streams with large roughness are very complex. In this paper some of the most important equations to estimate flow resistance of steep channels are reviewed and evaluated with experimental data from other authors and with own data. Further it is shown, that the transfer of data obtained in the laboratory to field conditions is only useful, if the boundary conditions like movable bed, roughness structure and Froude-number are identical. A new relationship to determine flow resistance of high gradient streams which includes the influence of Froude-number and roughness stature is proposed in this paper and tested with own data and those from the literature.

关键词： Flow open HYdRAULICS OF STEEp MOUNTAIN STREAMS

Optimizing laser coupling,matter heating,and particle acceleration from solids using multiplexed ultraintense lasers

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Matter and Radiation at Extremes 2024年第4期9卷 16-28页

作者： Weipeng Yao Motoaki Nakatsutsumi Sébastien Buffechoux patrizio Antici Marco Borghesi Andrea Ciardi Sophia N.Chen Emmanuel d’Humières Laurent Gremillet Robert Heathcote Vojtech Horny paul McKenna Mark N.Quinn Lorenzo Romagnani Ryan Royle Gianluca Sarri Yasuhiko Sentoku Hans-peter Schlenvoigt Toma Toncian Olivier Tresca Laura Vassura Oswald Willi Julien Fuchs LULI-CNRS CEASorbonne UniversitéEcole PolytechniqueInstitut Polytechnique de ParisF-91128 Palaiseau CedexFrance Sorbonne Université Observatoire de ParisUniversité PSLCNRSLERMAF-75005 ParisFrance INRS-EMT 1650 BoulLionel-BouletVarennesQuebec J3X 1S2Canada Center for plasma physics School of Mathematics and PhysicsQueen’s University BelfastBelfast BT71NNUnited Kingdom “Horia Hulubei”National Institute for physics and Nuclear Engineering 30 Reactorului StreetRO-077125 Bucharest-MagureleRomania University of Bordeaux Centre Lasers Intenses et ApplicationsCNRSCEAUMR 5107F-33405 TalenceFrance CEA DAMDIFF-91297 ArpajonFrance Université paris-Saclay CEALMCE91680 Bruyères-le-ChatelFrance Central Laser Facility STFC Rutherford Appleton LaboratoryDidcotUnited Kingdom SUpA Department of PhysicsUniversity of StrathclydeGlasgow G40NGUnited Kingdom department of physics University of NevadaRenoNevada 89557USA Institute of Laser Engineering Osaka University2-6 YamadaokaSuitaOsaka 565-0871Japan Institut fur Laser und plasmaphysik Heinrich Heine Universitat DusseldorfDusseldorfGermany

Realizing the full potential of ultrahigh-intensity lasers for particle and radiation generation will require multi-beam arrangements due to technology ***,we investigate how to optimize their coupling with solid ***,we show that overlapping two intense lasers in a mirror-like configuration onto a solid with a large preplasma can greatly improve the generation of hot electrons at the target front and ion acceleration at the target *** underlying mechanisms are analyzed through multidimensional particle-in-cell simulations,revealing that the self-induced magnetic fields driven by the two laser beams at the target front are susceptible to reconnection,which is one possible mechanism to boost electron *** addition,the resistive magnetic field generated during the transport of the hot electrons in the target bulk tends to improve their *** simulations also indicate that such effects can be further enhanced by overlapping more than two laser beams.

关键词： laser acceleration particle

performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATLAS detector

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Chinese physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios L. Adamczyk S.V. Addepalli M.J. Addison J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat B. Aitbenchikh I. Aizenberg M. Akbiyik T.p.A. Åkesson A.V. Akimov d. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi J. Albert p. Albicocco G.L. Albouy S. Alderweireldt M. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos F. Alfonsi M. Algren M. Alhroob B. Ali H.M.J. Ali S. Ali S.W. Alibocus M. Aliev G. Alimonti W. Alkakhi C. Allaire B.M.M. Allbrooke J.F. Allen C.A. Allendes Flores p.p. Allport A. Aloisio F. Alonso C. Alpigiani M. Alvarez Estevez A. Alvarez Fernandez M. Alves Cardoso M.G. Alviggi M. Aly Y. Amaral Coutinho A. Ambler C. Amelung M. Amerl C.G. Ames d. Amidei S.p. Amor dos Santos K.R. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel M.T. Anthony E. Antipov M. Antonelli F. Anulli M. Aoki T. Aoki J.A. Aparisi pozo M.A. Aparo L. Aperio Bella C. Appelt A. Apyan N. Aranzabal S.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-F. Arguin S. Argyropoulos J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah J. Assahsah K. Assamagan R. Astalos S. Atashi R.J. Atkin M. Atkinson H. Atmani p.A. Atmasiddha K. Augsten S. Auricchio A.d. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos d. Babal H. Bachacou K. Bachas A. Bachiu F. Backman A. Badea p. Bagnaia M. Bahmani A.J. Bailey V.R. Bailey J.T. Baines L. Baines O.K. Baker E. Bakos d. Bakshi Gupta V. Balakrishnan R. Balasubramanian E.M. Baldin p. Balek E. Ballabene F. Balli L.M. Baltes W.K. Balunas J. Balz E. Banas M. Bandieramonte A. Bandyopadhyay S. Bansal L. Barak M. Barakat E.L. Barberio d. Barberis M. Barbero M.Z. Barel K.N. Barends T. Barillari M-S. Barisits T. Barklow p. Baron d.A. Baron Mo The ATLAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the Large Hadron Collider,as Standard Model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced *** paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATLAS *** taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet *** in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAS JET QUARK GLUON TAGGING