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Direct measurement of the break-out ^(19)F(p,γ)^(20)Ne reaction in the China Jinping underground laboratory(CJPL)

Nuclear Science and Techniques 2024年第8期35卷 142-152页

作者： Yin‑Ji Chen Hao Zhang Li‑Yong Zhang Jian‑Jun He Richard James deBoer Michael Wiescher Alexander Heger David Kahl Jun Su Daniel Odell Xin‑Yue Li Jian‑Guo Wang Long Zhang Fu‑Qiang Cao Zhi‑Cheng Zhang Xin‑Zhi Jiang Luo‑Huan Wang Zi‑Ming Li Lu‑Yang Song Liang‑Ting Sun Qi Wu Jia‑Qing Li Bao‑Qun Cui Li‑Hua Chen Rui‑Gang Ma Er‑Tao Li Gang Lian Yao‑De Sheng Zhi‑Hong Li Bing Guo Wei‑Ping Liu Key Laboratory of Beam Technology of the Ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China Department of phys.cs and Astronomy The Joint Institute for Nuclear AstrophysicsUniversity of Notre DameNotre DameIN 46556USA School of phys.cs and Astronomy Monash UniversityClaytonVIC 3800Australia Facility for Rare Isotope Beams Michigan State UniversityEast LansingMI 48824USA inst.tute of Nuclear and Particle phys.cs and Department of phys.cs and Astronomy Ohio UniversityAthensOH 45701USA inst.tute of Modern phys.cs Chinese Academy of SciencesLanzhou 730000China China inst.tute of Atomic energy Beijing 102413China College of phys.cs and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China College of Science Southern University of Science and TechnologyShenzhen 518055China inst.tute of Radiation Technology Beijing Academy of Science and TechnologyBeijing 100875China Key Laboratory of Nuclear phys.cs and Ion‑Beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Mathematics and phys.cs Handan UniversityHandan 056005China

Calcium production and the stellar evolution of first-generation stars remain fascinating mysteries in *** one possible nucleosynthesis scenario,break-out from the hot carbon–nitrogen–oxygen(HCNO)cycle was thought to be the source of the calcium observed in these oldest ***,according to the stellar modeling,a nearly tenfold increase in the thermonuclear rate ratio of the break-out ^(19)F(p,γ)^(20) Ne reaction with respect to the competing ^(19)F(p,α)^(16) O back-processing reaction is required to reproduce the observed calcium *** performed a direct measurement of this break-out reaction at the China Jinping underground *** measurement was performed down to the low-energy limit of E_(c.m.)=186 keV in the center-of-mass *** key resonance was observed at 225.2 keV for the first *** a temperature of approximately 0.1 GK,this new resonance enhanced the thermonuclear ^(19)F(p,γ)^(20) Ne rate by up to a factor of≈7.4,compared with the previously recommended NACRE *** is of particular interest to the study of the evolution of the first stars and implies a stronger breakdown in their“warm”CNO cycle through the ^(19)F(p,γ)^(20) Ne reaction than previously *** break-out resulted in the production of the calcium observed in the oldest stars,enhancing our understanding of the evolution of the first stars.

关键词： Nuclear astrophys.cs First stars Abundance of calcium Reaction cross section Reaction rate China Jinping underground laboratory(CJPL) JUNA

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CO和K在W(100)面上共吸附的HREELS研究

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真空科学与技术 1993年第1期13卷 21-26页

作者：朱立鲍世宁徐纯一徐亚伯 phys Dept. Univ. of Newcastle New South Wales 2308 Australia. 浙江大学物理系杭州310027 中国科学院表面物理开放研究实验室北京100080

用高分辨电子能量损耗谱(HREELS)对CO和K在W(100)面的共吸附进行了研究。发现在有K沉积的W(100)面上,代表CO分子在顶位吸附时碳氧伸缩振动频率的损耗峰由255meV向低频率方向移动,该峰在CO饱和吸附时的强度随K的覆盖度增加而减小。在有K... 详细信息

用高分辨电子能量损耗谱(HREELS)对CO和K在W(100)面的共吸附进行了研究。发现在有K沉积的W(100)面上,代表CO分子在顶位吸附时碳氧伸缩振动频率的损耗峰由255meV向低频率方向移动,该峰在CO饱和吸附时的强度随K的覆盖度增加而减小。在有K和CO的W(100)面上,观察到了一个与K覆盖度大小有关的新的能量损耗峰,其位置在100meV左右,在CO暴露过程中,它比255meV处的损耗峰更早出现。它联系着一种CO受K影响的能量更抵的吸附状态。我们归之为“斜躺”的CO分子振动频率。当K的覆盖度增大到0.06后,CO和K在180～220meV之间形成了两个能量损耗峰,它们与CO分解后在表面形成K—O复合物的振动模式相关。

关键词：表面物理电子能谱 W(100)面

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Extension of a sharp-interface immersed-boundary method for simulating parachute inflation

Advances in Aerodynamics

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Advances in Aerodynamics 2024年第01期 43-67页

作者： Yang Zhang Tianmei Pu He Jia Shiqing Wu Chunhua Zhou College of Astronautics Nanjing University of Aeronautics and Astronautics Laboratory of Aerospace Entry Descent and Landing Technology CASC College of Electrical Energy and Power Engineering Yangzhou University College of Aeronautics Nanjing University of Aeronautics and Astronautics Beijing inst.tute of Space Mechanics and Electricity

In this work, the sharp-interface immersed boundary(IB) method proposed by Mittal et al.(J Comput phys.227(10):4825–4852, 2008) is extended to fluid-structure-interaction(FSI) simulation of parachute inflation by utilizing several open-source *** method employs a Cartesian-grid ghost-cell methodology to accurately represent the immersed boundary, and it is suitable for solving moving-boundary flows with arbitrarily complex geometries. The finite-element code CalculiX is employed to solve the structural dynamics of the parachute system. The IB flow solver is coupled with CalculiX in a minimally-invasive manner using the multi-phys.cs coupling library preCICE. The implicit fluid-structure coupling together with the Aitken adaptive under-relaxation scheme is considered to improve the numerical accuracy and stability. The developed approach is validated by a benchmark FSI case. Numerical experiments on the inflation process of several typical parachutes are further *** breathing process, flow structure, canopy displacement and drag coefficient are analyzed to demonstrate the applicability of the present approach for simulating parachute inflation.

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Erratum: A Ubiquitous Thermal Conductivity Formula for Liquids, Polymer Glass, and Amorphous Solids [Chin. phys. Lett. 37(2020) 104401]

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Chinese phys.cs Letters 2021年第3期38卷 132-132页

作者： Qing Xi Jinxin Zhong Jixiong He Xiangfan Xu Tsuneyoshi Nakayama Yuanyuan Wang Jun Liu Jun Zhou Baowen Li Center for Phononics and Thermal energy Science China-EU Joint Lab for NanophononicsSchool of Physics Science and EngineeringTongji UniversityShanghai 200092China Department of Mechanical and Aerospace Engineering North Carolina State UniversityRaleighNC 27695USA Hokkaido University SapporoHokkaido 060-0826Japan School of Environmental and Materials Engineering Shanghai Polytechnic UniversityShanghai 201209China Paul M Rady Department of Mechanical Engineering Department of PhysicsUniversity of ColoradoBoulderCO 80305-0427USA

In the Acknowledgement, the following sentence "JH and JL are supported by the National Science Foundation (Award number CBET-1943813) and the Faulty Research and Professional Development Fund at North Carolina State University" should be changed to "JH and JL are supported by the Faulty Research and Professional Development Fund at North Carolina State University".

关键词： Conductivity Solid Carolina

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phys.CAL CONSTANTS

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Chinese phys.cs C 2014年第9期38卷 109-109页

作者： K.A.Olive K.Agashe C.Amsler M.Antonelli J.-F.Arguin D.M.Asner H.Baer H.R.Band R.M.Barnett T.Basaglia C.W.Bauer J.J.Beatty V.I.Belousov J.Beringer G.Bernardi S.Bethke H.Bichsel O.Biebe E.Blucher S.Blusk G.Brooijmans O.Buchmueller V.Burkert M.A.Bychkov R.N.Cahn M.Carena A.Ceccucci A.Cerr D.Chakraborty M.-C.Chen R.S.Chivukula K.Copic G.Cowan O.Dahl G.D'Ambrosio T.Damour D.de Florian A.de Gouvea T.DeGrand P.de Jong G.Dissertor B.A.Dobrescu M.Doser M.Drees H.K.Dreiner D.A.Edwards S.Eidelman J.Erler V.V.Ezhela W.Fetscher B.D.Fields B.Foster A.Freitas T.K.Gaisser H.Gallagher L.Garren H.-J.Gerber G.Gerbier T.Gershon T.Gherghetta S.Golwala M.Goodman C.Grab A.V.Gritsan C.Grojean D.E.Groom M.Grnewald A.Gurtu T.Gutsche H.E.Haber K.Hagiwara C.Hanhart S.Hashimoto Y.Hayato K.G.Hayes M.Heffner B.Heltsley J.J.Hernandez-Rey K.Hikasa A.Hocker J.Holder A.Holtkamp J.Huston J.D.Jackson K.F.Johnson T.Junk M.Kado D.Karlen U.F.Katz S.R.Klein E.Klempt R.V.Kowalewski F.Krauss M.Kreps B.Krusche Yu.V.Kuyanov Y.Kwon O.Lahav J.Laiho P.Langacker A.Liddle Z.Ligeti C.-J.Lin T.M.Liss L.Littenberg K.S.Lugovsky S.B.Lugovsky F.Maltoni T.Mannel A.V.Manohar W.J.Marciano A.D.Martin A.Masoni J.Matthews D.Milstead P.Molaro K.Monig F.Moortgat M.J.Mortonson H.Murayama K.Nakamura M.Narain P.Nason S.Navas M.Neubert P.Nevski Y.Nir L.Pape J.Parsons C.Patrignani J.A.Peacock M.Pennington S.T.Petcov Kavli IPMU A.Piepke A.Pomarol A.Quadt S.Raby J.Rademacker G.Raffel B.N.Ratcliff P.Richardson A.Ringwald S.Roesler S.Rolli A.Romaniouk L.J.Rosenberg J L.Rosner G.Rybka C.T.Sachrajda Y.Sakai G.P.Salam S.Sarkar F.Sauli O.Schneider K.Scholberg D.Scott V.Sharma S.R.Sharpe M.Silari T.Sjostrand P.Skands J.G.Smith G.F.Smoot S.Spanier H.Spieler C.Spiering A.Stahl T.Stanev S.L.Stone T.Sumiyoshi M.J.Syphers F.Takahashi M.Tanabashi J.Terning L.Tiator M.Titov N.P.Tkachenko N.A.Tornqvist D.Tovey G.Valencia G.Venanzoni M.G.Vincter P.Vogel A.Vogt S.P.Wakely W.Walkowiak C.W.Walter D.R.Ward G.Weiglein D.H.Weinberg E.J.Weinberg M.White L.R.Wiencke C.G.Wohl L.Wolfenstein J.Womersley C.L. University of Minnesota School of Physics and Astronomy116 Church St.S.E.MinneapolisMN 55455USA University of Maryland Department of PhysicsCollege ParkMD 20742-4111USA Albert Einst.in Center for Fundamental phys.cs Universitat BernCH-3012 BernSwitzerland Lab.Nazionali di Frascati dell'INFN CP 13via E.Fermi40I-00044 Frascati(Roma)Italy Departement de phys.que Universite de MontrealC.P.6128succ.centre-villeMontreal(Quebec) H3C 3J7Canada Pacific Northwest National Laboratory 902 Battelle BoulevardRichlandWA 99352USA Department of phys.cs and Astronomy University of OklahomaNormanOK 73019USA Department of phys.cs University of WisconsinMadisonWI 53706USA phys.cs Division Lawrence Berkeley National Laboratory1 Cyclotron RoadBerkeleyCA 94720USA CERN European Organization for Nuclear ResearchCH-1211 Geneve 23Switzerland Department of phys.cs The Ohio State University191 W.Woodruff Ave.ColumbusOH 43210 COMPAS Group Institute for High Energy PhysicsRU- 142284ProtvinoRussia LPNHE IN2P3-CNRS et Universites de Paris 6 et 7F-75252 ParisFrance Max-Planck-inst.tute of phys.cs 80805 MunichGermany Department of phys.cs University of WashingtonSeattleWA 98195USA Ludwig-Maximilians-Universitat Fakultdt für PhysikSchellingstr.4D-80799 MünchenGermany Enrico Fermi inst.tute and Department of phys.cs University of ChicagoChicagoIL 60637-1433USA Department of phys.cs Syracuse UniversitySyracuseNY13244USA Department of phys.cs Columbia University538 W.120th StreetNew YorkNY10027 USA high energy phys.cs Group Blackett LaboratoryImperial CollegePrince Consort RoadLondon SW7 2AZUK Jefferson Lab 12000 Jefferson Ave.Newport NewsVA 23606USA Department of phys.cs University of VirginiaPO Box 400714CharlottesvilleVA 22904USA Fermi National Accelerator Laboratory P.O.Box 500BataviaIL 60510USA Kavli inst.tute for Cosmological phys.cs University of ChicagoChicagoIL 60637-1433USA Department of phys.cs and Astronomy University of SussexFalmerBrighton BN1 9QHUK Department o

Table 1.1. Reviewed 2013 by P.J. Mohr （NIST）. Mainly from the “CODATA Recommended Values of the Fundamental phys.cal Constants： 2010” by P.J. Mohr, B.N. Taylor, and D.B. Newell in Rev. Mod. phys. 84, 1527 （2012）. The last group of constants （beginning with the Fermi coupling constant） comes from the Particle Data Group. The figures in parentheses after the values give the 1-standard-deviation uncertainties in the last digits;

关键词： Planck phys.CAL CONSTANTS

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