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Interpretation of thermal dependence of magnetic aftereffect for magnetic nanocomposite with slow decay rates

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International Journal of Smart and Nano Materials 2013年第2期4卷 91-101页

作者： Shuo Gu Yi Jin Gary R.Kahler Ming Zhang Peijie Chen Mohammadreza Ghahremani Edward Della Torre Lawrence H.bennett Department of Electrical and Computer Engineering The George Washington UniversityWashington DC 20052 USA Department of Chemistry The George Washington UniversityWashington DC 20052USA

A new experimental characterization is presented of time-,field-,and temperature-dependent dynamic effects in magnetization of a nanocomposite which displays slow *** and temperature variations of irreversible susceptibility,χirr,decay coefficient,S,fluctuation field,hf,and activation volume,V,have been calculated for the nanocomposite sample(Co_(80)Ni_(20))using a recently developed modified Preisach–Arrhenius(MPA)*** sample is composed of non-interacting nanoparticles having negligible reversible ***-Arrhenius behavior is observed in both the maximum decay coefficient,Smax,and the fluctuation field,hf,as a function of temperature *** peak of both temperature curves are identical and occur at a critical temperature Tk of∼50 K,which agrees with our experimental *** on the effect of a temperature-dependent chemical potential on energy barrier,hf is studied for T

关键词： magnetic aftereffect fluctuation field numerical modeling Co_(80)Ni_(20)nanocomposite

Bose-Einstein Condensation of Confined Magnons in Nanostructures

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Journal of Modern Physics 2014年第8期5卷 693-705页

作者： Lawrence H. bennett Edward Della Torre The george Washington University Washington DC USA

A number of diverse kinds of magnetic experiments are shown to lead to the observation of a Bose-Einstein condensation of magnons in some nanostructures, especially in Fe and in Co/Pt. The experiments include 1) the measurement of magnetic aftereffect, 2) measurements of Néel’s fluctuation field, including an estimate of activation volume, 3) the measurement of the energy gap which provides a lower limit on the BEC temperature, 4) using Lagrange multipliers in the quantum thermodynamics of magnons, and 5) the observation of a visible anomaly in the Bloch T3/2 law for the temperature dependence of magnetization of nanostructured ferromagnets.

关键词： Bose-Einstein Statistics Aftereffect Bloch T3/2 Law Chemical Potential Arrhenius Law

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法治与政府决策自动化

理论月刊 2020年第11期 119-131页

作者： [澳]莫妮卡·佐尼鲁特莉亚·本内特·摩西乔治·威廉姆斯廖建凯(译) 新南威尔士大学法学院澳大利亚悉尼西南政法大学人工智能法学院重庆401120

透明和责任、可预测性和一致性以及法律面前人人平等,是各国普遍认可的法治价值观。预编程规则系统和从历史数据中衍生出规则系统,是两类典型的自动化系统。澳大利亚、美国、瑞典和中国的公共机构已经在社会福利分配、刑事审判和社会信... 详细信息

透明和责任、可预测性和一致性以及法律面前人人平等,是各国普遍认可的法治价值观。预编程规则系统和从历史数据中衍生出规则系统,是两类典型的自动化系统。澳大利亚、美国、瑞典和中国的公共机构已经在社会福利分配、刑事审判和社会信用评级等领域,应用自动化系统进行决策。政府决策自动化,在增强法治价值的同时也给法治价值带来新的挑战,反映出法治与技术快速变革之间的紧张关系。缓和法治与政府决策自动化之间的紧张关系,需要精心设计、有效实施和持续评估自动化决策系统,需要将自动化决策系统的形式与应用场景相匹配并限制自动化决策在某些场景中的应用。然而,将法治价值观转化为自动化系统的技术规范并加以实施,是一项艰巨的技术和法律挑战。

关键词：法治自动化决策法治价值观专家系统机器学习

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水力压裂监测新方法

国外测井技术 2007年第4期22卷 53-67页

作者： Les bennett Joeol Le Calvez David R. （ Rich ） Sarver Kevin Tanner W.S.（Scott）Birk george Waters Julian Drew Gw e nola Michaud Paolo Primiero Leo Eisner Rob Jones David Leslie Michael John Williams Jim Govenlock Richard C. （ Rick ） Klein Kazuhiko Tezuka 美国得克萨斯州College Station 美国俄克拉何马州俄克拉何马城日本神奈川县Sagamihara 英国剑桥 Chesapeake作业公司俄克拉何马州俄克拉何马城得克萨斯州Sugar Land 日本石油勘探公司日本千叶

深入了解水力压裂裂缝的几何形态和延伸情况有助于改善低渗油气藏压裂增产作业效果，改善油气井产能并提高油气采收率。应用地震方法对水力压裂裂缝进行监测和描述已经有多年了，而新的地震硬件和处理技术的出现使得这类监测更加有效、... 详细信息

深入了解水力压裂裂缝的几何形态和延伸情况有助于改善低渗油气藏压裂增产作业效果，改善油气井产能并提高油气采收率。应用地震方法对水力压裂裂缝进行监测和描述已经有多年了，而新的地震硬件和处理技术的出现使得这类监测更加有效、可靠。

关键词：水力压裂裂缝监测地震方法低渗油气藏油气采收率作业效果几何形态气井产能

6年以上婚姻质量的变化与男性心血管疾病危险因素的关系：结果来自英国的埃文父母与儿童纵向前瞻性队列研究

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英国医学杂志中文版 2018年第2期21卷 117-117页

作者： Ian bennett-Britton Alison Teyhan John Macleod Naveed Sattar george Davey Smith Yoav Ben-Shlomo 曹勤范竹萍不详上海交通大学医学院附属仁济医院

背景婚姻关系的质量被认为是对心血管健康结果的独立影响因子。这项研究调查了婚姻关系质量的变化与男性心血管疾病（CVD）危险因素之间的关系。

关键词：婚姻质量心血管疾病婚姻关系医学研究

An Earth-mass planet in a time of COVID-19:KMT-2020-BLG-0414Lb

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Research in Astronomy and Astrophysics 2021年第9期21卷 243-261页

作者： Weicheng Zang Cheongho Han Iona Kondo Jennifer C.Yee Chung-Uk Lee Andrew Gould Shude Mao Leandro de Almeida Yossi Shvartzvald Xiangyu Zhang Michael D.Albrow Sun-Ju Chung Kyu-Ha Hwang Youn Kil Jung Yoon-Hyun Ryu In-Gu Shin Sang-Mok Cha Dong-Jin Kim Hyoun-Woo Kim Seung-Lee Kim Dong-Joo Lee Yongseok Lee Byeong-Gon Park Richard W.Pogge John Drummond Thiam-Guan Tan JoséDias do Nascimento Júnior Dan Maoz Matthew T.Penny Wei Zhu Ian A.Bond Fumio Abe Richard Barry David P.bennett Aparna Bhattacharya Martin Donachie Hirosane Fujii Akihiko Fukui Yuki Hirao Yoshitaka Itow Rintaro Kirikawa Naoki Koshimoto Man Cheung Alex Li Yutaka Matsubara Yasushi Muraki Shota Miyazaki Greg Olmschenk Clément Ranc Nicholas J.Rattenbury Yuki Satoh Hikaru Shoji Stela Ishitani Silva Takahiro Sumi Daisuke Suzuki Yuzuru Tanaka Paul J.Tristram Tsubasa Yamawaki Atsunori Yonehara Andreea Petric Todd Burdullis Pascal Fouqué Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Chungbuk National UniversityCheongju 28644Republic of Korea Department of Earth and Space Science Graduate School of ScienceOsaka UniversityToyonakaOsaka 560-0043Japan Center for Astrophysics j Harvard&Smithsonian 60 Garden St.CambridgeMA 02138USA Korea Astronomy and Space Science Institute Daejon 34055Republic of Korea University of Science and Technology Korea(UST)217 Gajeong-ro Yuseong-guDaejeon 34113Republic of Korea Max-Planck-Institute for Astronomy Königstuhl 1769117 HeidelbergGermany Department of Astronomy Ohio State University140 W.18th Ave.ColumbusOH 43210USA National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Universidade Federal do Rio Grande do Norte(UFRN) Departamento de F´1sica59078-970NatalRNBrazil Department of Particle Physics and Astrophysics Weizmann Institute of ScienceRehovot 76100Israel University of Canterbury Department of Physics and AstronomyPrivate Bag 4800Christchurch 8020New Zealand School of Space Research Kyung Hee UniversityYonginKyeonggi 17104Republic of Korea Possum Observatory PatutahiGisbourneNew Zealand Perth Exoplanet Survey Telescope PerthAustralia School of Physics and Astronomy Tel-Aviv UniversityTel-Aviv 6997801Israel Department of Physics and Astronomy Louisiana State UniversityBaton RougeLA 70803 USA Canadian Institute for Theoretical Astrophysics University of Toronto60 St George StreetTorontoON M5S 3H8Canada Institute of Natural and Mathematical Sciences Massey UniversityAuckland 0745New Zealand Institute for Space-Earth Environmental Research Nagoya UniversityNagoya 464-8601Japan Code 667 NASA Goddard Space Flight CenterGreenbeltMD 20771USA Department of Astronomy University of MarylandCollege ParkMD 20742USA Department of Physics University of AucklandPrivate Bag 92019AucklandNew Zealand Department of Earth and Planetary Science Graduate School of ScienceThe University of Tokyo7-3-1 Hongo

We report the discovery of KMT-2020-BLG-0414 Lb,with a planet-to-host mass ratio q2=0.9-1.2×10-5=3-4 q⊕at 1σ,which is the lowest mass-ratio microlensing planet to *** with two other recent discoveries(4?q/q⊕?6),it fills out the previous empty sector at the bottom of the triangular(log s,log q)diagram,where s is the planet-host separation in units of the angular Einstein radiusθ***,these discoveries call into question the existence,or at least the strength,of the break in the mass-ratio function that was previously suggested to account for the paucity of very low-q *** to the extreme magnification of the event,Amax~1450 for the underlying single-lens event,its light curve revealed a second companion with q3~0.05 and|log s3|~1,i.e.,a factor~10 closer to or farther from the host in *** measurements of the microlens parallaxπE and the angular Einstein radiusθE allow estimates of the host,planet and second companion masses,(M1,M2,M3)~(0.3 M⊙,1.0 M⊕,17 MJ),the planet and second companion projected separations,(a⊥,2,a⊥,3)~(1.5,0.15 or 15)au,and system distance DL~1 *** lens could account for most or all of the blended light(I~19.3)and so can be studied immediately with high-resolution photometric and spectroscopic observations that can further clarify the nature of the *** planet was found as part of a new program of high-cadence follow-up observations of high-magnification *** detection of this planet,despite the considerable difficulties imposed by COVID-19(two KMT sites and OGLE were shut down),illustrates the potential utility of this program.

关键词： gravitational lensing:micro