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Chemical Research in Chinese Universities 2004年第3期20卷 274-276页

作者： ZHONGGui-yun SONGHai-bin XIEQing-lan SUNLi-juan InstituteofElemento-OrganicChemistry NankaiUniversityTianjin300071P.R.China

Four new five-coordinated anionic tin(Ⅳ) complexes with a form of [R_ n NH_ 4- n ][PhSn( μ 2-SCH_2COO)_2] were synthesized via the reaction of mercaptoacetic acid with phenyltin trichloride in the presence of different organic bases and characterized by means of IR, 1H NMR and MS spectroscopies. The crystal structure of [( i -Pr)_2NH_2] [PhSn( μ 2-SCH_2COO)_2] was determined by X-ray diffraction. In the crystal structure,the tin atom is five-coordinated and exists in trigonal bipyramid geometry with cell parameters a =1.1766(11) nm, b =1.3144(14) nm, c =1.3336(15) nm,β =90° and Z =4.

关键词： Five-coordinated tin(Ⅳ) complex Ionic organotin Crystal structure

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人工智能时代声音侵权的私法规制

哈尔滨学院学报 2024年第4期45卷 73-77页

作者：尹懋锟李云滨东北林业大学文法学院黑龙江哈尔滨150040

人工智能时代声音处理技术逐渐完善,声音利用与侵犯呈现多元化趋势。现有法律对声音权保护不足。自然人声音权是独立的具体人格权,具有财产价值与精神价值。对声音权保护应把握声音侵权类型特点,考虑声音权价值突出、保护意识淡薄等侵... 详细信息

人工智能时代声音处理技术逐渐完善,声音利用与侵犯呈现多元化趋势。现有法律对声音权保护不足。自然人声音权是独立的具体人格权,具有财产价值与精神价值。对声音权保护应把握声音侵权类型特点,考虑声音权价值突出、保护意识淡薄等侵权频发诱因。人工智能时代下声音权保护路径可参照肖像权有关规定,积极适用人格权禁令制度,依法确定侵权责任,推动声音侵权私法规制的进一步完善。

关键词：人工智能时代声音侵权私法规制

基于改进YOLOv8算法的路面病害数字化研究

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公路 2024年第9期69卷 350-356页

作者：王一博周春霞王韵斌李惟韬中国建筑西南设计研究院有限公司成都市610041 中国电子科技集团公司第三十研究所成都市610041

为解决基于机器视觉检测路面病害的速度与精度不高、算法优化效果不显著的问题,在YOLOv8算法中引入CBAM模块,并开展消融试验分别引入SE模块和ECA模块,使用开源的RDD 2020数据集训练模型,经图像预处理得到二进制图像。与YOLOv8算法相比,C... 详细信息

为解决基于机器视觉检测路面病害的速度与精度不高、算法优化效果不显著的问题,在YOLOv8算法中引入CBAM模块,并开展消融试验分别引入SE模块和ECA模块,使用开源的RDD 2020数据集训练模型,经图像预处理得到二进制图像。与YOLOv8算法相比,CBAM-YOLOv8算法的精确率、召回率、mAP@0.5、mAP@0.5:0.95均有所提高,而SE-YOLOv8算法和ECA-YOLOv8算法的检测精度较YOLOv8有所降低。进一步通过RDD 2022数据集验证了CBAM-YOLOv8算法在路面病害检测中的优越性。CBAM-YOLOv8算法的应用可以进一步提高路面病害检测的速度和精度,具有显著的优化效果。

关键词：道路工程路面病害图像处理算法优化 CBAM-YOLOv8

Ab initio Study of Anharmonic Force Field and Spectroscopic Constants for Germanium Dichloride

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Chinese Journal of Chemical Physics 2016年第6期29卷 657-662,I0001页

作者： Wei-xiu Pang yun-bin Sun Jian-jun Zhao Yi Lu KeyLaboratoryofMagnetismandMaEneticMaterialsatUniversitiesofInnerMongoliaAutonomousRegion DepartmentofPhysicsBaotouNormalUniversityBaotou014030China

Ab initio study of the equilibrium structure, spectroscopy constants, and anharmonic force field for several isotopomers of germanium dichloride （70GeCl2, 72GECl2, and 76GeCl2） have been carried out at the MP2 and CCSD（T） levels of theory using cc-pVTZ basis set. The cal- culated geometries, rotational constants, vibration-rotation interaction constants, harmonic frequencies, anharmonic constants, quartic and sextic centrifugal distortion constants, cubic and quartic force constants are compared with experimental data. For small mass differences of the Ge isotopes, the isotopic effects for germanium dichloride are much weaker. The agreements are satisfactory for these two methods, but the deviations of CCSD（T） results are slightly larger than that of MP2, because of CCSD（T）＇s inadequate treatment of electron correlation in hypervalent Cl atom.

关键词： Anharmonic force field Spectroscopic constants Germanium dichloride

A Novel Three-Dimensional Mouse Embryonic Implantation Model In Vitro

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Agricultural Sciences in China 2007年第1期6卷 115-120页

作者： SONG Yu-xuan CAO bin-yun Animal Sci-Tech College Northwest A＆F University Yangling712100 P.R.China

To regenerate three-dimensional endometrium in vitro as a novel model for studying the mechanism of implantation of embryos, the luminal epithelial cells and stromal cells of the rabbit uterus were separated and cultured in vitro. The type Ⅰ mouse tail collagen was used as scaffolding material. The stromal cells were inoculated in the type I mouse tail collagen, and the luminal epithelial cells were inoculated on the type i mouse tall collagen to regenerate the endometrium in vitro. The regenerated endometrium was cultured in DMEM-F/12 media containing 100 nmol L^-1 progesterone, 10 nM β-estradiol, and 10% fetal bovine serum （FBS） for 3 d. The media were then replaced with CZB containing 100 nM progesterone, 10 nmol L-1 β-estradiol, and 10% FBS, and the mouse blastulas were co-cultured with it. The results of scanning electronic micrography showed that the epithelial cells on the surface of the reconstructed endometrium were covered with numerous slender microvilli and some epithelial cells protruded pinopodes. After culturing for 12 h with the mouse blastula, the shedding, attachment, and implantation of the blastula were observed. The blastula can escape from zona pellucida and attach to the three-dimensional endometrium and is then implanted into it. This study showed that the reconstructed three-dimensional endometrium can serve as a robust embryo implantation model in vitro.

关键词： three-dimensional endometrium embryo implantation model in vitro

Singular Nonlinear Boundary Value Problems Arising in the Boundary Layer Behind Expansion Wave

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Journal of Mathematical Research and Exposition 2008年第3期28卷 558-566页

作者： XU yun bin ZHENG Lian Cun Department of Mathematics and Mechanics University of Science and Technology Beijing Beijing 100083 China Department of Mathematics Yulin College Shanxi 719000 China

A class of singular nonlinear boundary value problems arising in the boundary layer behind expansion wave are *** conditions for the existence and uniqueness of positive solutions to the problems are established by utilizing the monotonic approaching tech- *** a theoretical estimate formula for skin friction coefficient is *** numerical solution is presented by using the shoot *** reliability and efficiency of the theoretical prediction are verified by numerical results.

关键词： expansion wave boundary layer singular boundary value problems existence and uniqueness positive solution skin friction estimation.

Direct N-alkylation of amines with alcohols using AlCl_3 as a Lewis acid

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Chinese Chemical Letters 2014年第12期25卷 1540-1544页

作者： Ya-Qiong Li yun-bin Chen Zhi-Zhen Huang Department of Chemistry Zhejiang University Zhejiang Jianye Chemical Co. Ltd. State Key Laboratory of Elemento-Organic Chemistry Nankai University

A substitution reaction of amines with alcohols for N-alkylated amines has been developed using inexpensive AlCl3without any ligand or *** aromatic or aliphatic amines and primary or secondary alcohols perform the AlC... 详细信息

关键词： Amine Alcohol N-Alkylated amine Lewis acid Synthesis

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微起爆序列用硅基作动机构隔断特性研究

火工品 2024年第3期 1-6页

作者：胡腾江赵玉龙谭明何亚新刘运斌屈萍西安交通大学精密微纳制造技术全国重点实验室陕西西安710049 四川华川工业股份有限公司技术中心四川成都610100 陕西应用物理化学研究所陕西西安710061

针对MEMS火工品的内置安全控制设计需求,在硅基MEMS作动机构的基础上,重点开展了硅基作动机构与微起爆传爆序列的集成化设计与能量匹配研究。该序列主要由微起爆器、微作动机构及传爆药组成。其中微起爆器的叠氮化铜装药尺寸为Ф0.8mm×... 详细信息

针对MEMS火工品的内置安全控制设计需求,在硅基MEMS作动机构的基础上,重点开展了硅基作动机构与微起爆传爆序列的集成化设计与能量匹配研究。该序列主要由微起爆器、微作动机构及传爆药组成。其中微起爆器的叠氮化铜装药尺寸为Ф0.8mm×0.8mm,装药量为1.5mg;微作动机构在11V直流电压驱动下,可以实现传爆通道的开启与闭合,隔断位移为743.06µm;传爆药为油墨直写方式制备的CL-20传爆药,装药尺寸为Ф3mm×3mm,装药密度为1.66g/cm^(3),装药量约为35mg。研究表明该序列具备可靠起爆、传爆以及隔爆功能。

关键词：微起爆传爆序列微起爆器微作动机构传爆药

Properties and strengthening mechanism of brush plated nanoparticle reinforced composite coatings

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中国有色金属学会会刊：英文版 2004年第z1期14卷 182-185页

作者： DONG Shi-yun XU bin-shi MA Shi-ning TU Wei-yi National Key Laboratory for Remanufacturing Academy of Armored Force Engineering Beijing 100072 China National Key Laboratory for RemanufacturingAcademy of Armored Force Engineering Beijing 100072 China National Key Laboratory for RemanufacturingAcademy of Armored Force Engineering Beijing 100072 China National Key Laboratory for RemanufacturingAcademy of Armored Force Engineering Beijing 100072 China

Nanoparticle reinforced nickel matrix composite coatings, such as n-Al2O3/Ni, n-SiO2/Ni, n-SiC/Ni and n-TiO2/Ni, were fabricated by brush plating technique. Hardness, wear resistance and contact-fatigue resistance of the composite coatings were determined, and strengthening mechanism of the composite coatings was discussed. Results show that the composite coatings have superior properties to the Ni metal coating. Compared with properties of brush plated Ni metal coating, the composite coatings have hardness over 1.5 times and wear resistance capability of about 2.5 times. The strengthening mechanism of the composite coatings mainly includes fine-crystal grain effect, nanoparticle dispersion effect and dislocation effect.

关键词： nanoparticles brush plated coatings strengthening mechanism

Research on deformation characteristics of JCOE forming in large diameter welding pipe

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Advances in Manufacturing 2016年第3期4卷 268-277页

作者： Li-Feng Fan Jia-Xin Yan Ying Gao Jian-bin yun Institute of Transportation Inner Mongolia UniversityHohhot Inner Mongolia People's Republic of China College of Material Science and Engineering HebeiUniversity of Science and Technology Shijiazhuang HebeiPeople's Republic of China Product Quality Inspection Institute of Inner Mongolia Hohhot Inner Mongolia People's Republic of China

In the present work, the JCOE forming is inves- tigated using the finite element （FE） method. A two- dimensional FE model is established for the plane strain condition by FE code ABAQUS, and the FE model is vali- dated by experiments. The aim of this research is to inves- tigate forming quality states in the JCOE forming process; in particular, the effects of technological parameters on form- ing quality are evaluated. Taking the JCOE forming process of X80 steel φ1 219 mm × 22 mm × 12 000 mmwelding pipe for instance, the deformation characteristics of JCOE forming are analyzed, in which the geometry of the formed pipe, residual stress distributions and effects of process parameters on JCOE forming quality can be obtained. Thus, the presented results of this research provide an effective approach to improve welding pipe forming quality.

关键词： Welding pipe JCOE forming - Deformationcharacteristics - Finite element analysis (FEA)