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Weighted Probability Density Estimator with Updated Bandwidths

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Journal of systems science & Complexity 2024年第2期37卷 886-906页

作者： WU Yi YU Wei WANG Xuejun PrAKAsA rAO B l s school of Big Data and Artificial Intelligence Chizhou UniversityChizhou 247000China school of Big Data and statistics Anhui UniversityHefei 230601China cr rao Advanced Institute of mathematics Statistics and Computer ScienceHyderabad 500046India

In this paper,the authors study a cl.s. of weighted version of probability density *** is shown that the weighted estimator contains some existing estimators of probability density,no matter they are recursive or *** statistical resul.s.including weak consistency,strong consistency,rate of strong consistency,and asymptotic normality are establ.s.ed under some mild ***,the random weighted estimator is also *** numerical.s.mulations and a real data anal.s.s are presented to study the numerical performances of the estimators.

关键词： Asymptotic normality consistency numerical.s.mulation probability density real data anal.s.s updated bandwidths weighted estimator

Evidence for particle acceleration approaching PeV energies in the W51 complex

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science Bulletin 2024年第18期69卷 2833-2841页

作者： lHAAsO Collaboration Zhen Cao F.Aharonian Axikegu Y.X.Bai Y.W.Bao D.Bastieri X.J.Bi Y.J.Bi W.Bian A.V.Bukevich Q.Cao W.Y.Cao Zhe Cao J.Chang J.F.Chang A.m.Chen E.s.Chen H.X.Chen liang Chen lin Chen long Chen m.J.Chen m.l.Chen Q.H.Chen s.Chen s.H.Chen s.Z.Chen T.l.Chen Y.Chen N.Cheng Y.D.Cheng m.Y.Cui s.W.Cui X.H.Cui Y.D.Cui B.Z.Dai H.l.Dai Z.G.Dai Danzengluobu X.Q.Dong K.K.Duan J.H.Fan Y.Z.Fan J.Fang J.H.Fang K.Fang C.F.Feng H.Feng l.Feng s.H.Feng X.T.Feng Y.Feng Y.l.Feng s.Gabici B.Gao C.D.Gao Q.Gao W.Gao W.K.Gao m.m.Ge l.s.Geng G.Giacinti G.H.Gong Q.B.Gou m.H.Gu F.l.Guo X.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han m.Hasan H.H.He H.N.He J.Y.He Y.He Y.K.Hor B.W.Hou C.Hou X.Hou H.B.Hu Q.Hu s.C.Hu D.H.Huang T.Q.Huang W.J.Huang X.T.Huang X.Y.Huang Y.Huang X.l.Ji H.Y.Jia K.Jia K.Jiang X.W.Jiang Z.J.Jiang m.Jin m.m.Kang I.Karpikov D.Kul.s.ov K.Kurinov B.B.li C.m.li Cheng li Cong li D.li F.li H.B.li H.C.li Jian li Jie li K.li s.D.li W.l.li W.l.li X.r.li Xin li Y.Z.li Zhe li Zhuo li E.W.liang Y.F.liang s.J.lin B.liu C.liu D.liu D.B.liu H.liu H.D.liu J.liu J.l.liu m.Y.liu r.Y.liu s.m.liu W.liu Y.liu Y.N.liu Q.luo Y.luo H.K.lv B.Q.ma l.l.ma X.H.ma J.r.mao Z.min W.mitthumsiri H.J.mu Y.C.Nan A.Neronov l.J.Ou P.Pattarakijwanich Z.Y.Pei J.C.Qi m.Y.Qi B.Q.Qiao J.J.Qin A.raza D.ruffolo A.sáiz m.saeed D.semikoz l.s.ao O.shchegolev X.D.sheng F.W.shu H.C.song Yu.V.stenkin V.stepanov Y.su D.X.sun Q.N.sun X.N.sun Z.B.sun J.Takata P.H.T.Tam Q.W.Tang r.Tang Z.B.Tang W.W.Tian C.Wang C.B.Wang G.W.Wang H.G.Wang H.H.Wang J.C.Wang Kai Wang Kai Wang l.P.Wang l.Y.Wang P.H.Wang r.Wang W.Wang X.G.Wang X.Y.Wang Y.Wang Y.D.Wang Y.J.Wang Z.H.Wang Z.X.Wang Zhen Wang Zheng Wang D.m.Wei J.J.Wei Y.J.Wei T.Wen C.Y.Wu H.r.Wu Q.W.Wu s.Wu X.F.Wu Y.s.Wu s.Q.Xi J.Xia G.m.Xiang D.X.Xiao G.Xiao Y.l.Xin Y.Xing D.r.Xiong Z.Xiong D.l.Xu r.F.Xu r.X.Xu W.l.Xu l.Xue D.H.Yan J.Z.Yan T.Yan C.W.Yang C.Y.Yang F.Yang F.F.Yang l.l.Yang m.J.Yang r.Z.Yang W.X.Yang Y.H.Yao Z.G.Yao l.Q.Yin N.Yin X.H.You Z.Y.You Y.H.Yu Q.Yuan H.Yue H.D.Zeng T.X.Zeng W.Zeng m.Zha B.B.Zhang F.Zhang H.Zhang 不详 Key laboratory of Particle Astrophysics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of sciences Beijing 100049China TIANFU Cosmic ray research Center ChengduChina Dublin Institute for Advanced studies 31 Fitzwilliam Place2 DublinIreland max-Planck-Institut for Nuclear Physics P.O.Box 103980Heidelberg 69029Germany school of Physical.s.ience and Technology&school of Information science and Technology Southwest Jiaotong UniversityChengdu 610031China school of Astronomy and space science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Tsung-Dao lee Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Institute for Nuclear research of russian Academy of sciences Moscow 117312Russia Hebei Normal University Shijiazhuang 050024China University of science and Technology of China Hefei 230026China state Key laboratory of Particle Detection and Electronics China Key laboratory of Dark matter and space Astronomy&Key laboratory of radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China research Center for Astronomical Computing Zhejiang LaboratoryHangzhou 311121China Key laboratory for research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China school of Physics and Astronomy Yunnan UniversityKunming 650091China Key laboratory of Cosmic rays(Tibet University) Ministry of EducationLhasa 850000China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China school of Physics and Astronomy(Zhuhai)&school of Physics(Guangzhou)&sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275GuangdongChina Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China APC UniversitéParis Cité

Theγ-ray emission from the W51 complex is widely acknowledged to be attributed to the interaction between the cosmic rays(crs)accelerated by the shock of supernova remnant(sNr)W51C and the dense molecular clouds in the adjacent star-forming region,***,the maximum acceleration capability of W51C for crs remains *** on observations conducted with the large High Altitude Air shower Observatory(lHAAsO),we report a significant detection ofγrays emanating from the W51 complex,with energies from 2 to 200 *** lHAAsO measurements,for the first time,extend theγ-ray emission from the W51 complex beyond 100 TeV and reveal a significant spectrum bending at tens of *** combining the"π^(0)-decay bump"featured data from Fermi-lAT,the broadbandγ-ray spectrum of the W51 region can be well-characterized by a simple pp-coll.s.on *** observed spectral bending feature suggests an exponential cutoff at~400 TeV or a power-law break at~200 TeV in the cr proton spectrum,most likely providing the first evidence of sNrs serving as cr accelerators approaching the PeV ***,two young star cl.s.ers within W51B could also be theoretically viable to produce the most energeticγrays observed by *** findings strongly support the presence of extreme cr accelerators within the W51 complex and provide new insights into the origin of Galactic crs.

关键词： UHE c-ray Cosmic rays sNr W51C star cl.s.ers

Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp coll.s.ons at √s=13 TeV with the ATl.s.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. Alexopoul.s.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. Anastopoul.s.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. Argyropoul.s.J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai s. Asai N.A. Asbah J. Assahsah K. Assamagan r. Astal.s.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. Azuel.s.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. Bal.s.bramanian 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 ATl.s.Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various anal.s.s performed at the large Hadron Collider,as standard model measurements and searches for new particl.s.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 ATl.s.Collaboration,using √s=13 TeV proton–proton coll.s.on data with an integrated luminosity of 140 fb^(-1) collected by the ATl.s.*** 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 observabl.s.using a boosted decision tree.A method is establ.s.ed to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsampl.s.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

Development of a database for the prediction of phases in Pt-based superalloys:cr-Pt-ru

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rare metals 2006年第5期25卷 597-607页

作者： A.Watson l.A.Cornish r.süss Institute for materials research School of ProcessMaterials and Environmental EngineeringUniversity of LeedsLeedsUK Advanced materials Division MintekPrivate Bag X3015Randburg2125South AfricaDST/NRF Centre of Excellence for Strong MaterialsUniversity of the WitwatersrandJohannesburg2025South Africa Advanced materials Division MintekPrivate Bag X3015Randburg2125South AfricaDST/NRF Centre of Excellence for Strong MaterialsUniversity of the WitwatersrandJohannesburg2025South Africa School of Chemical and Metallurgical EngineeringUniversity of the WitwatersrandJohannesburg2025South Africa

Work has been ongoing in building a thermodynamic database for the prediction of phase equilibria in Pt-based superalloys. The alloys are being developed for high texture applications in aggressive environments. The database will aid the design of alloys by enabling the calculation of the composition and proportions of phases present in alloys of different compositions. In order to extend this database, a preliminary assessment of the cr-Pt-ru system has been undertaken, using a combination of Pandat and mTDATA software. As a first step, it was necessary to provide thermodynamic models for the three associated binary systems. Owing to a lack of thermodynamic information for these systems, the binary assessments were based on phase diagrams available in the literature. Using recent experimental phase equilibria data for the ternary system, a preliminary assessment of the cr-Pt-ru system has been produced. In this preliminary assessment, simplified models were employed for the l12 and sigma phases with a view to extending the descriptions as new experimental information becomes available.

关键词： cr-Pt-rh thermodynamics assessment phase diagram

The role of physical properties in expl.s.ve welding of copper to stainl.s. steel

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Defence Technology（防务技术） 2023年第4期22卷 88-98页

作者： G.H.s.F.l.Carvalho I.Galvao r.mendes r.m.leal A.B.moreira A.loureiro Univ Coimbra CEMMPREDepartamento de Engenharia Mec^anicaRua Luís Reis Santos3030-788CoimbraPortugal Department of Industrial Engineering University of FirenzeVia di Santa Marta 350139FirenzeItaly IsEl Departamento de Engenharia Mec^anicaInstituto Politecnico de LisboaRua Conselheiro Emídio Navarro 11959-007LisboaPortugal Univ Coimbra ADAILEDAPDepartamento de Engenharia Mec^anicaRua Luís Reis Santos3030-788CoimbraPortugal lIDA-EsAD.cr Instituto Politecnico de LeiriaRua Isidoro Inacio Alves de Carvalho2500-321Caldas da RainhaPortugal Univ.Porto LAETA/INEGIDept.Eng.Metalúrgica e de MateriaisR.Dr.Roberto Frias4200-465PortoPortugal

This paper investigates the effects of the physical properties on the microstructure and weldability of expl.s.ve welding by joining two metals with a significant contrast in thermophysical properties:stainl.s. steel and *** wel.s.between stainl.s. steel and copper were obtained,and the interfacial morphology was wavy,regardl.s. of the position of the *** weldability of dissimilar pairs was found to be more dependent on the relationship between the physical properties of the base materials than on the absolute value of the material *** there is a significant difference in thermal conductivity between the flyer and the base plate,together with a material with a low melting temperature,the weldability of the pair is often *** relative position of the plates affects the interfacial microstructure even when similar morphologies are *** the metallic pairs studied,the wave size was bigger for the configuration in which the ratio between the density of the flyer and the density of the base plate is *** same phenomenon was observed for the impedance:bigger waves were found for a smaller ratio between the impedance of the flyer and the impedance of the base plate.

关键词： Expl.s.ve welding solid-state Copper-stainl.s. steel Dissimilar Interface morphology Weldability

THE EFFECTs OF PUlsE BIAs VOlTAGE AND N_2 PArTIAl PrEssUrE ON TiAlN FIl.s.OF ArC ION PlATING (AIP)

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Acta metallurgica sinica(Engl.s. letters) 2001年第6期14卷 520-524页

作者： m.s. li, s.l. Zhu, Fuhui Wang, C. sun and l.s. Wen (Institute of metal research, The Chinese Academy of sciences, shenyang l10016, China)

Owing to the characteristics of arc ion plating(AIP) technique, the structure and composition of TiAlN fil.s.can be tailored by controlling of various parameters such as compositions of target materials, N2 partial pressure, substrate bias and so on. In this study, several titanium aluminum nitride fil.s.were deposited on 1cr11Ni2W2moV steel for compressor blade of areo-engine under different d.c pulse bias voltage and nitrogen partial pressure. The effects of substrate pulse bias and nitrogen partial pressure on the deposition rate, droplet formation, microstruture and elemental component of the fil.s.were investigated.

关键词： TiAlN film pulse bias voltage nitrogen partial pressure arc ion plating

Geochemical evidences of trace metal anomalies for finding hydrocarbon microseepage in the petroliferous regions of the Tatipaka and Pasarlapudi areas of Krishna Godavari Basin,India

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Petroleum science 2013年第1期10卷 19-29页

作者： rasheed m A lakshmi m rao P l.s.Kalpana m s Dayal A m Patil D J microbiology laboratory Petroleum Geochemistry Group National Geophysical Research Institute (Council of Scientific and Industrial Research)

The long-term seepage of hydrocarbons, either as macroseepage or microseepage, can set up near-surface oxidation reduction zones that favor the development of a diverse array of chemical and mineralogical changes. The bacterial oxidation of light hydrocarbons can directly or indirectly bring about significant changes in the values of pH and Eh of the surrounding environment, thereby also changing the stability fiel.s.of the different mineral.s.ecies present in that environment. The paper reports the role of hydrocarbon microseepage in surface alterations of trace metal concentrations. In this study trace metal alterations were mapped that appear to be associated with hydrocarbon microseepages in the oil/ gas fiel.s. A total of 50 soil.s.mpl.s.were collected near oil and gas fiel.s.of the Tatipaka and Pasarlapudi areas of the Krishna Godavari Basin, Andhra Pradesh. The soil.s.mpl.s.were collected from a depth of 2-2.5 m. The paper reports the chemical alterations associated with trace metals in soils that are related to hydrocarbon microseepages above some of the major oil and gas fiel.s.of this petroliferous region. Trace metals, such as scandium （sc）, vanadium （V）, chromium （cr）, cobalt （Co）, nickel （Ni）, copper （Cu）, zinc （Zn）, barium （Ba） and strontium （sr）, in soil.s.mpl.s.were analyzed using inductively coupled pl.s.a- mass spectrometry （ICP-ms）. The concentrations of sc （8 to 40 mg/kg）, V （197 to 489 mg/kg）, cr （106 to 287 mg/kg）, Co （31 to 52 mg/kg）, Ni （65 to 110 mg/kg）, Cu （88 to 131 mg/kg）, Zn （88 to 471 mg/kg）, Ba （263 to 3,091 mg/kg） and sr （119 to 218 mg/kg） were obtained. It was observed that the concentrations of trace elements were tremendously increased when they were compared with their normal concentrations in soils. The anal.s.s of adsorbed soil gas showed the presence of high concentrations of YC2＋（C2H6, C3H8 and n-C4H10） ranging from 7 to 222 μg/kg respectively. Integrated studies of trace elements over adsorbed light gaseous hydrocarbons （2C2

关键词： Hydrocarbons microseepage trace metal alterations adsorbed soil gas Krishna Godavari Basin

New insights into the hardening and pitting corrosion mechanisms of thermally aged duplex stainl.s. steel at 475℃:A comparative study between 2205 and 2101 steels

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Journal of materials science & Technology 2022年第3期98卷 123-135页

作者： r.silva G.s.Vacchi C.l.Kugelmeier I.G.r.santos A.A.mendes Filho D.C.C.magalhães C.r.m.Afonso V.l.s.rdi C.A.D.rovere munir rachid Corrosion laboratory Department of Materials EngineeringFederal University of São CarlosRodovia Washington Luis Km 23513565-905 São CarlosSPBrazil Engineering Modeling and Applied Social Sciences Center(CECS)Federal University of ABCAvenida dos Estados 500109210580 Santo AndréSPBrazil Federal University of são Carlos Graduate Program in Materials Science and EngineeringBrazil

In this study,the relationship between spinodal decomposition and the formation of Ni-rich cl.s.ers and G-phase in the ferrite on hardening and pitting corrosion of two thermally aged duplex stainl.s. steels(Dsss)at 475℃was *** indicate that,for 2205 Dss,pitting corrosion behavior is influenced by the presence and size of G-phase precipitates for longer aging times,but this contribution is masked by the advanced stage of spinodal decomposition in the ferritic *** the other hand,for 2101 Dss,the formation of cr-richer nitrides impairs pitting corrosion resistance more than spinodal decomposition.

关键词： Duplex stainl.s. steel spinodal decomposition G-phase precipitation Pitting corrosion Hardening

COVID-19后影像学肺部后遗症及与临床和功能性肺部评估的相关性：一项前瞻性队列研究

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国际医学放射学杂志 2024年第2期 254-254页

作者： s.soliman H.soliman m.crézél P.Y.Brillet D.montani l.s.vale 朱婉秋

摘要目的 COVID-19是否会导致长期肺部后遗症尚不清楚。研究旨在评估COVID-19住院病人持续性放射学肺纤维化的患病率。方法该项前瞻性单中心研究收集了2020年

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