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高校大型仪器设备安全管理的探索实践

实验室科学 2024年第5期27卷 200-203页

作者：庄彬福建师范大学物理与能源学院福建福州350117

双一流高校的学科建设不能没有高尖端的实验室,高尖端的实验室不能缺乏高大上的大型仪器设备。大型仪器设备的安全管理作为高校实验室安全管理的重要组成部分,近年来逐渐成为高校校园安全的热点研究问题。基于国内高校实验室在大型仪器... 详细信息

双一流高校的学科建设不能没有高尖端的实验室,高尖端的实验室不能缺乏高大上的大型仪器设备。大型仪器设备的安全管理作为高校实验室安全管理的重要组成部分,近年来逐渐成为高校校园安全的热点研究问题。基于国内高校实验室在大型仪器设备安全管理方面的现状分析,从组织体系、安全培训、风险评估和信息化管理几方面进行探索实践,建立了物理学科专业特色的大型仪器设备安全管理信息化虚拟系统。

关键词：大型仪器设备安全管理探索实践

Development of X-FEM methodology and study on mixed-mode crack propagation

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Acta Mechanica Sinica 2011年第3期27卷 406-415页

作者： Zhuo zhuang bin-bin Cheng School of Aerospace Tsinghua University 100084 Beijing China

The extended finite element method（X-FEM） is a novel numerical methodology with a great potential for using in multi-scale computation and multi-phase coupling problems. The algorithm is discussed and a program is developed based on X-FEM for simulating mixed-mode crack propagation. The maximum circumferential stress criterion and interaction integral are deduced. Some numerical results are compared with the experimental data to prove the capability and efficiency of the algorithm and the program. Numerical analyses of sub-interfacial crack growth in bi-materials give a clear description of the effiect on fracture made by interface and loading condition.

关键词： X-FEM - Mixed-mode fracture . Bi-material Sub-interfacial crack

7FDL-16柴油机气缸盖热结构耦合应力分析

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大连交通大学学报 2024年第2期45卷 63-67页

作者：李明海庄斌大连交通大学机车车辆工程学院辽宁大连116028

通过CATIA软件进行三维建模,利用Space Claim模块提取流体域,在Fluent模块设置流体边界条件并仿真流动,先后导入Ansys Workbench稳态热和静应力分析模块,设置热边界条件和应力载荷,得到气缸盖的温度场以及热结构耦合应力分布云图。热结... 详细信息

通过CATIA软件进行三维建模,利用Space Claim模块提取流体域,在Fluent模块设置流体边界条件并仿真流动,先后导入Ansys Workbench稳态热和静应力分析模块,设置热边界条件和应力载荷,得到气缸盖的温度场以及热结构耦合应力分布云图。热结构耦合应力分析可得:热应变最大处在火力面鼻梁区,最大变形量为0.002 1 mm,应力最大处在两排气门之间的鼻梁区,最大应力值为398 MPa,安全系数为2.71,满足实际结构工作的要求标准。

关键词：柴油机气缸盖热结构耦合应力分析热应变

Molecular insight into the GaP(110)-water interface using machine learning accelerated molecular dynamics

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Journal of Energy Chemistry 2023年第7期82卷 239-247,I0006页

作者： Xue-Ting Fan Xiao-Jian Wen Yong-bin zhuang Jun Cheng State Key Laboratory of Physical Chemistry of Solid Surfaces iChEMCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005FujianChina Shenzhen Research Institute of Xiamen University Shenzhen 518057GuangdongChina Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005FujianChina

GaP has been shown to be a promising photoelectrocatalyst for selective CO_(2)reduction to *** to the relevance of the interface structure to important processes such as electron/proton transfer,a detailed understanding of the GaP(110)-water interfacial structure is of great *** initio molecular dynamics(AIMD)can be used for obtaining the microscopic information of the interfacial ***,the GaP(110)-water interface cannot converge to an equilibrated structure at the time scale of the AIMD *** this work,we perform the machine learning accelerated molecular dynamics(MLMD)to overcome the difficulty of insufficient sampling by *** the help of MLMD,we unravel the microscopic information of the structure of the GaP(110)-water interface,and obtain a deeper understanding of the mechanisms of proton transfer at the GaP(110)-water interface,which will pave the way for gaining valuable insights into photoelectrocatalytic mechanisms and improving the performance of photoelectrochemical cells.

关键词： Photoelectrocatalysis GaP(110)-water interface Machine learning accelerated molecular dynamics

Y染色体短串联重复序列微流控芯片复合扩增检测体系研究

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生物化学与生物物理进展 2024年第3期51卷 696-705页

作者：王道宇万群庄斌赵丽健韩俊萍李彩霞中国人民公安大学侦查学院北京100038 山东第一医科大学基础医学院济南250000 北京博奥晶典生物技术有限公司北京101111 北京市公安局朝阳分局刑事侦查支队北京100025 公安部鉴定中心现场物证溯源技术国家工程实验室北京市现场物证检验工程技术研究中心北京100038

目的构建Y染色体短串联重复序列(Y-STR)微流控芯片扩增检测试剂,并进行性能验证,实现Y-STR基因座的快速全集成检测。方法使用Y-STR微流控芯片检测体系,对其灵敏度、成功率和分型准确率、峰平衡性、精准性和准确性、检材适应性、混合物... 详细信息

目的构建Y染色体短串联重复序列(Y-STR)微流控芯片扩增检测试剂,并进行性能验证,实现Y-STR基因座的快速全集成检测。方法使用Y-STR微流控芯片检测体系,对其灵敏度、成功率和分型准确率、峰平衡性、精准性和准确性、检材适应性、混合物检测能力和抗抑制性进行验证评估。结果DNA标准品9948的模板量≥8 ng,血卡片数≥3片以及口腔拭子刮擦次数≥7次时可获得Y-STR完整分型;165份样本的全集成检测成功率为91.52%,分型准确率为99.74%;不同荧光通道之间的峰高比值为89.81%;10次运行的等位基因分型标准品的片段大小标准差均在0.5 bp以内,20份样本全集成检测的等位基因片段和相应的等位基因标准品之间的片段准确性均在0.5 bp以内;能够对口腔拭子、血卡、唾液卡、烟蒂、血棉签、布片精斑等检材进行准确分型;混合样本中较小贡献者与较大贡献者在1∶3的比例时可获得完整基因分型;在不同浓度的腐殖酸(50~400 mg/L)、靛蓝(20~100 nmol/L)、血红蛋白(100~500μmol/L)等抑制物的干扰下,该体系可获得完整基因分型。结论该体系可应用于国产Quick TargSeq法医DNA现场快速检测系统使用,可在法医学实践中选用。

关键词：法医物证学微流控芯片 Y染色体短串联重复序列

A computational method for wide-azimuth 3D dip-angle gathers using Gaussian beam migration

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Petroleum Science 2022年第5期19卷 2081-2094页

作者： Su-bin zhuang Jian-Ping Huang Ji-Dong Yang Zhen-Chun Li School of Geosciences China University of Petroleum(East China)Qingdao266580ShandongChina

The dip-angle-domain common-image gather(DDCIG)is a key tool to separate the diffraction and reflection imaging *** with different spatial geometries produce different responses in *** with Kirchhoff migration,Gaussian beam migration(GBM)is more effective and robust to overcome the multipathing *** a ray-based method,it has explicit angle information naturally during the *** have developed a 3D DDCIG computational method using GBM,which obtain both the imaging result and angle-domain gathers with only one pass of *** angle-gather computation is based on geometrical optics,and multiple angle conversions are implemented under the rules of space geometry,which helps to avoid rounding errors and improve ***,the multi-azimuth joint presentation strategy is proposed to describe the characteristic of omnidirectional dip angles using a finite number of *** using a 2D model to illustrate application advantages of DDCIG,we apply the proposed method to two 3D models to test its feasibility and accuracy.A field data example further demonstrates the adaptability of our method to seismic imaging for a land survey.

关键词： Gaussian beam Dip-angle gathers 3D imaging Diffraction

Microstructure and magnetic properties of electrodeposited Gd-Co alloy films

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Rare Metals 2008年第6期27卷 586-590页

作者： LAI Heng LI Jiaxin ZHOU Weichao zhuang bin WU Xiaoping HUANG Zhigao Shool of Physics and Optoelectronics Technology Fujian Normal University Fuzhou 350007 China Department of Chemistry Fuzhou University Fuzhou 350002 China

Gd-Co alloy films were synthesized by potentiostatic electrolysis on Cu substrates in urea-acetamide-NaBr-KBr melt at 353 K. The electroreduction of Co^2＋ and Gd^3＋ was investigated by cyclic voltammetry. The reduction of Co^2＋ is an irreversible process. Gd^3＋ cannot be reduced alone, but it can be inductively co-deposited with Co^2＋. Both the Gd content and microstructure of the prepared Gd-Co alloy films can be controlled by the deposited potential. The content of Gd was analyzed using an inductively coupled plasma emission spectrometer （ICPES）, and the microstructure was observed by scanning electron micrograph （SEM）. The films were crystallized by heat-treatment at 823 K for 30 s in Ar atmosphere, and then were investigated by XRD. The hysteresis loops of the Gd-Co alloy films were measured by a vibrating sample magnetometer （VSM）. The experimental results reveal that the deposited Gd-Co alloy films are amorphous, while the annealing causes the samples to change from amorphous to polycrystalline, thus enhancing their magnetocrystalline anisotropy and coercivity. Moreover, the magnetic properties of the Gd-Co alloy films depend strongly on the Gd content.

关键词： electrodeposited films Gd-Co alloys surface microstructure crystalline phase magnetic properties

Target-oriented Gaussian beam migration using a modif ied ray tracing scheme

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Petroleum Science 2019年第6期16卷 1301-1319页

作者： Rui Zhang Jian-Ping Huang Su-bin zhuang Zhen-Chun Li School of Geosciences China University of Petroleum(East China)Qingdao 266580China State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China

For large-scale 3D seismic data,target-oriented reservoir imaging is more attractive than conventional full-volume migration,in terms of computation *** beam migration(GBM)is one of the most robust depth imaging method,which not only keeps the advantages of ray methods,such as high efficiency and flexibility,but also allows us to solve caustics and multipathing *** conventional Gaussian beam migration requires slant stack for prestack data,and ray tracing from beam center location to subsurface,which is not easy to be directly applied for target-oriented *** this paper,we modify the conventional Gaussian beam migration scheme,by shooting rays from subsurface image points to receivers to implement wavefield *** modification helps us to achieve a better subsurface illumination in complex structure and allows simple implementation for target reservoir ***,compared with the wavefi eld-based GBM,our method does not reconstruct the subsurface snapshots,which has higher *** the proposed method is not as efficient as the conventional Gaussian beam *** and field data examples demonstrate the validity and the target-oriented imaging capability of our method.

关键词： Gaussian beam migration Target-oriented imaging Illumination Ray tracing

Patterned phosphor-in-glass films with efficient thermal management for high-power laser projection displays

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Journal of Advanced Ceramics 2023年第11期12卷 2075-2086页

作者： Zezhong Yang Song Zheng Guoyu Xi Tao Pang Shaoxiong Wang Qingying Ye bin zhuang Daqin Chen College of Physics and Energy Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy MaterialsFujian Normal UniversityFuzhou 350117China Huzhou Key Laboratory of Materials for Energy Conversion and Storage College of ScienceHuzhou UniversityHuzhou 313000China Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering Fujian Normal UniversityFuzhou 350117China Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage Fujian Normal UniversityFuzhou 350117China

Recently,high-performance color converters excitable by blue laser diode(LD)have sprung up for projection ***,the thermal accumulation effect of the color converters is a non-negligible problem under high-power LD ***,we developed novel opto-functional composites(patterned CaAlSiN3:Eu^(2+)phosphor-in-glass film–Y_(3)Al_(5)O_(12):Ce^(3+)phosphor-in-glass film@Al_(2)O_(3)plate with aluminum"heat sink")via a thermal management methodology of combining"phosphor wheel"and"heat sink"for a lighting source of highpower laser projection *** new composite design makes it effective to transport generated thermal phonons away to reduce the thermal ionization process,and to yield stable and high-quality white light with brightness of 4510 lm@43 W,luminous efficacy of 105 lm/W,correlated color temperature of 3541 K,and color rendering index of ***,the phosphor-in-glass film-converted laser projection system was also successfully designed,showing a more vivid color effect compared to a traditional LED-based *** work emphasizes the importance of the thermal management upon high-power laser irradiation,and hopefully facilitates the development of a new LD-driven lighting source for high-power laser projection displays.

关键词： phosphor-in-glass(PiG)film laser-driven lighting luminescent materials heat dissipation glass ceramics