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Effect of Organosilicon Coating Containing Light Stabilizer on UV Aging Resistance of Bitumen

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武汉理工大学学报 2010年第17期32卷 83-88页

作者： huang y FENG z G yU J y Key Laboratory of Silicate Materials Science and Engineering of Education Ministry Wuhan University of TechnologyWuhan 430070China

Effects of organosilicon coating with light stabilizer UV326,UV531 and 770 on ultraviolet (UV) aging resistance of bitumen were investigated by testing the viscosity,softening point and the changes of chemical component before and after UV aging. The results show that UV aging resistance of bitumen is improved due to the good weatherability of organosilicon. And the UV aging resistance of bitumen is further enhanced by adding light stabilizer into organosilicon coating due to the good UV absorption of light stabilizers. Bitumen coated with organosilicon coating containing UV326 exhibits better UV aging resistance in comparison with bitumen coated with organosilicon containing UV531 or 770.

关键词： bitumen light stabilizer organosilicon coating UV aging

Degradation behaviors of polymer electrolyte membrane fuel cell under freeze/thaw cycles

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Degradation behaviors of polymer electrolyte membrane fuel c...

肠系膜下动脉根部淋巴结清扫联合血管低位或高位结扎治疗直肠癌的效果观察

第九届全国氢能学术会议

作者： M.J.Luo,C.y.huang,z.P.Luo,M.Pan Wuhan University of Technology,China

＜正＞Degradation behaviors of polymer electrolyte membrane fuel cell（PEMFC） in high current density region were investigated under Freeze/Thaw cycles in this *** dehumidification scenarios namely hot purge,cold purge and no purge were adopted for *** curves and power density curves were utilized to compare the cell

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来源： cnki会议评论

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结直肠肛门外科 2021年第4期27卷 392-393页

作者：孙凌宇俞旻皓骆洋 LUO y yU M H huang y z 哈尔滨医科大学附属第四医院肿瘤外科黑龙江哈尔滨150000 上海交通大学医学院附属仁济医院胃肠外科上海200127 不详

目的:在结直肠癌手术中,与肠系膜下动脉高位结扎相比,保留左结肠动脉的低位结扎在淋巴结清扫、吻合口漏和肿瘤学结果方面仍存在争议。本研究通过回顾性病例分析探讨腹腔镜直肠癌前切除术中肠系膜下动脉高位结扎或低位结扎对患者近期和... 详细信息

目的:在结直肠癌手术中,与肠系膜下动脉高位结扎相比,保留左结肠动脉的低位结扎在淋巴结清扫、吻合口漏和肿瘤学结果方面仍存在争议。本研究通过回顾性病例分析探讨腹腔镜直肠癌前切除术中肠系膜下动脉高位结扎或低位结扎对患者近期和远期疗效的影响。方法:回顾性分析2013年至2016年在仁济医院行腹腔镜直肠癌前切除术的614例患者的临床资料,比较低位结扎组和高位结扎组的临床人口学特征、手术时间、IMA根部淋巴结清扫数目、围手术期并发症、术后3年和术后5年的总生存率和无病生存率。两组之间比较采用t检验或χ^(2)检验,生存率采用Kaplan-Meier生存曲线以及Log-rank检验分析。以P<0.05为差异有统计学意义。

关键词：淋巴结清扫高位结扎仁济医院无病生存率肿瘤学围手术期并发症结直肠癌手术低位结扎

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蜜蜂褪黑素的测定方法

昆虫知识 2005年第1期42卷 99-102页

作者：李秀秦玉川 zanchary yonghuang 宋敦伦中国农业大学昆虫学系北京100094 中国农业大学昆虫学系 Department of Entomoloy Michigan State University East LansingMI48824USA

在脊椎动物中,褪黑素(5-甲氧基-N-乙酰色胺,MLT)是一种由松果体分泌的具有典型光周期信号作用的神经内分泌激素。近年在昆虫头部也发现了这种化学物质。该文简述了褪黑素常见测定方法,详细介绍了褪黑素的免疫测定方法RIA(radionimmunoas... 详细信息

在脊椎动物中,褪黑素(5-甲氧基-N-乙酰色胺,MLT)是一种由松果体分泌的具有典型光周期信号作用的神经内分泌激素。近年在昆虫头部也发现了这种化学物质。该文简述了褪黑素常见测定方法,详细介绍了褪黑素的免疫测定方法RIA(radionimmunoassay),并使用该方法初步测定了中华蜜蜂ApisceranaFabricius工蜂头部褪黑素的含量,结果显示褪黑素含量与工蜂的社会分工相关。

关键词：褪黑素头部含量常见 RIA 免疫测定松果体工蜂中华蜜蜂光周期

Quantum convolution inequalities on Frobenius von Neumann algebras

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Science China Mathematics 2025年第3期68卷 615-636页

作者： Linzhe huang zhengwei Liu Jinsong Wu Beijing Institute of Mathematical Sciences and Applications yau Mathematical Sciences Center and Department of Mathematics Tsinghua University

In this paper, we introduce Frobenius von Neumann algebras and study quantum convolution inequalities. In this framework, we unify quantum young's inequality on quantum symmetries such as subfactors,and fusion bi-algebras studied in quantum Fourier analysis. Moreover, we prove quantum entropic convolution inequalities and characterize the extremizers in the subfactor case. We also prove quantum smooth entropic convolution inequalities. We obtain the positivity of comultiplications of subfactor planar algebras, which is stronger than the quantum Schur product theorem. All these inequalities provide analytic obstructions of unitary categorification of fusion rings stronger than the Schur product criterion.

关键词： Frobenius von Neumann algebra quantum young's inequality quantum entropic convolution inequality unitary categorification

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Dynamic modeling of a three-dimensional braided composite thin plate considering braiding directions

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 123-138页

作者： Chentong GAO Huiyu SUN Jianping GU W.M.huang College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics School of Mechanical and Aerospace Engineering Nanyang Technological University Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology School of Materials Science and EngineeringNanjing Institute of Technology

Currently, there are a limited number of dynamic models available for braided composite plates with large overall motions, despite the incorporation of three-dimensional(3D) braided composites into rotating blade components. In this paper, a dynamic model of 3D 4-directional braided composite thin plates considering braiding directions is established. Based on Kirchhoff's plate assumptions, the displacement variables of the plate are expressed. By incorporating the braiding directions into the constitutive equation of the braided composites, the dynamic model of the plate considering braiding directions is obtained. The effects of the speeds, braiding directions, and braided angles on the responses of the plate with fixed-axis rotation and translational motion, respectively, are investigated. This paper presents a dynamic theory for calculating the deformation of 3D braided composite structures undergoing both translational and rotational motions. It also provides a simulation method for investigating the dynamic behavior of non-isotropic material plates in various applications.

关键词： braiding direction composite thin plate dynamic model large overall motion O313.7 three-dimensional (3D) braided composite

Geochronology and geodynamic setting of the carbonate-hosted Pb-zn deposits in world-class Sichuan-yunnan-Guizhou triangle,South China

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Acta Geochimica 2025年第1期44卷 217-230页

作者： zhongxi Xue Wenxin Shi Chen Wei Tao Wu zhilong huang State Key Laboratory of Ore Deposit Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China College of Mining Engineering Guizhou University of Engineering ScienceBijie 551700China Helmholtz-zentrum Dresden Rossendorf Helmholtz Institute Freiberg for Resource Technology09599 FreibergGermany University of Chinese Academy of Sciences Beijing 100049China

Unraveling the precise mineralization age is vital to understand the geodynamic setting and ore-forming mechanism of the sediment-hosted Pb-zn deposit;this has long been a *** Sichuan-yunnan-Guizhou(SyG)triangle in the southwestern margin of the yangtze Block is a globally recognized carbonate-hosted Pb-zn metallogenic province and also an essential part of the South China low-temperature metallogenic *** region has>30 million tons(Mt)zn and Pb resources and shows the enrichment of dispersed metals,such as Ga,Ge,Cd,Se,and *** the past 2 decades,abundant data on mineralization ages of Pb-zn deposits within the SyG triangle have been documented based on various radioisotopic dating methods,resulting in significant progress in understanding the geodynamic background and ore formation of Pb-zn deposits hosted in sedimentary rocks at SyG *** paper provides a comprehensive summary of the geochronological results and Pb-Sr isotopic data regarding Pb-zn deposits in the SyG triangle,which identified two distinct Pb-zn mineralization periods influencing the dynamic processes associated with the expansion and closure of the Paleo-Tethys Ocean in the western margin of the yangtze *** predominant phase of Pb-zn mineralization at SyG triangle spanned from the Middle Triassic to Early Jurassic(226-191 Ma),which was intensely correlated with the large-scale basin fluid transport triggered by the closure of the Paleo-Tethys Ocean and Indosinian *** secondary Pb-zn mineralization phase occurred during the Late Devonian to Late Carboniferous and was controlled by extensional structures associated with the expansion of the Paleo-Tethys *** investigation is necessary to clarify the occurrence and potential factors involved in the Pb-zn mineralization events during the Late Devonian to Late Carboniferous.

关键词： Sichuan-yunnan-Guizhou triangle Carbonate hosted Pb-zn deposit Radioisotopic dating Geodynamic setting Mississippi Valley-type(MVT)

Deep view of composite SNR CTA1 with LHAASO in γ-rays up to 300 TeV

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Science China(Physics,Mechanics & Astronomy) 2025年

作者： 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.C.Chu 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 T.T.Ge L.S.Geng G.Giacinti G.H.Gong Q.B.Gou M.H.Gu F.L.Guo J.Guo X.L.Guo y.Q.Guo y.y.Guo y.A.Han O.A.Hannuksela 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 C.huang D.H.huang T.Q.huang W.J.huang X.T.huang X.y.huang y.huang y.y.huang X.L.Ji H.y.Jia K.Jia H.B.Jiang K.Jiang X.W.Jiang z.J.Jiang M.Jin M.M.Kang I.Karpikov D.Khangulyan D.Kuleshov 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 K.C.y.Ng 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.Shao 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 L.H.Wan 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 Southwest Jiaotong University School of Astronomy and Space Science Nanjing University Center for Astrophysics Guangzhou University Tsung-Dao Lee Institute & School of Physics and Astronomy Shanghai Jiao Tong University Institute for Nuclear Research of Russian Academy of Sciences Hebei Normal University University of Science and Technology of China LHAASO Collaboration State Key Laboratory of Particle Detection and Electronics Key Laboratory of Dark Matter and Space Astronomy & Key Laboratory of Radio Astronomy Purple Mountain Observatory Chinese Academy of Sciences Research Center for Astronomical Computing zhejiang Laboratory Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academy of Sciences School of Physics and Astronomy Key Laboratory of Particle Astrophysics & Experimental Physics Division & Computing Center yunnan University Key Laboratory of Cosmic Rays (Tibet University) Ministry of Education Department of Physics The Chinese University of Hong Kong Key Laboratory of Radio Astronomy and Technology National Astronomical Observatories Chinese Academy of Sciences School of Physics and Astronomy (zhuhai) & School of Physics (Guangzhou) & Sino-French Institute of Nuclear Engineering and Technology (zhuhai) Sun yat-sen University Institute of High Energy Physics Institute of Frontier and Interdisciplinary Science Shandong University APC Université Paris Cité CNRS/IN2P3 CEA/IRFU Observatoire de Paris Department of Engineering Physics & Department of Astronomy Tsinghua University School of Physics and Microelectronics Chinese Academy of Sciences zhengzhou University yunnan Observatories Chinese Academy of Sciences China Center of Advanced Science and Technology College of Physics Sichuan University School of Physics Peking University Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and Technology University of Chinese Academy of Sciences Guangxi University Department of Physics Faculty of Science Mahidol University Moscow Institute

The ultra-high-energy（UHE） gamma-ray source 1LHAASO J0007+7303u is positionally associated with the composite SNR CTA1 that is located at high Galactic Latitude b ≈ 10.5°. This provides a rare opportunity to spatially resolve the component of the pulsar wind nebula（PWN） and supernova remnant（SNR） at UHE. This paper conducted a dedicated data analysis of 1LHAASO J0007+7303u using the data collected from December 2019 to July 2023. This source is well detected with significances of 21σ and 17σ at 8-100 TeV and >100 TeV, respectively. The corresponding extensions are determined to be 0.23°±0.03°and 0.17°±0.03°. The emission is proposed to originate from the relativistic electrons accelerated within the PWN of PSR J0007+7303. The energy spectrum is well described by a power-law with an exponential cutoff function dN/dE =（42.4 ± 4.1）(E/（20 TeV）)-2.31±0.11exp(-E/（110±25 TeV）) TeV-1cm-2s-1in the energy range from 8 to 300 TeV, implying a steady-state parent electron spectrum dNe/dEe∝(Ee/（100 TeV）)-3.13±0.16exp[(-Ee/（373±70 TeV）)2] at energies above ≈ 50 TeV. The cutoff energy of the electron spectrum is roughly equal to the expected current maximum energy of particles accelerated at the PWN terminal shock. Combining the X-ray and gamma-ray emission, the current space-averaged magnetic field can be limited to≈ 4.5 μG. To satisfy the multi-wavelength spectrum and the γ-ray extensions, the transport of relativistic particles within the PWN is likely dominated by the advection process under the free-expansion phase assumption.

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LHAASO detection of very-high-energy γ-ray emission surrounding PSR J0248+6021

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Science China(Physics,Mechanics & Astronomy) 2025年

We report the detection of an extended very-high-energy(VHE) γ-ray source coincident with the location of middle-aged(62.4 kyr) pulsar PSR J0248+6021, by using the LHAASO-WCDA data of live 796 d and LHAASO-KM2A data of live 1216d. A significant excess of γ-ray induced showers is observed both by WCDA in energy bands of 1-25 Te V and KM2A in energy bands of >25 TeV with 7.3σ and 13.5σ, respectively. The best-fit position derived through WCDA data is R.A. = 42.06°± 0.12°and Dec. = 60.24°± 0.13°with an extension of 0.69°±0.15°and that of the KM2A data is R.A.= 42.29°± 0.13°and Dec. =60.38°± 0.07°with an extension of 0.37°±0.07°. No clear extended multiwavelength counterpart of this LHAASO source has been found from the radio band to the GeV band. The most plausible explanation of the VHE γ-ray emission is the inverse Compton process of highly relativistic electrons and positrons injected by the pulsar. These electrons/positrons are hypothesized to be either confined within the pulsar wind nebula or to have already escaped into the interstellar medium, forming a pulsar halo.

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