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Influence of Parameters in the Design of a Faceted Structure for Incoherent Beam Shaping

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Journal of Microelectronic Manufacturing 2021年第4期4卷 1-11页

作者： Lihong Liu Thierry Engel- Huwen Ding yuanzhi cui Jing Zhang Yayi Wei Manuel Flury Institute of Microelectronics Chinese Academy of SciencesBeijingChina100029 Laboratoire des Sciences de llngenieur de I'lnformatique et de I'lmagerie(Icube)UMR CNRS 7357300 Boulevard Sebastien BrantCS1041367412 Illkirch CedexFrance INSA de Strasbourg 24 Boulevard de la Victoire67084 Strasbourg CedexFrance University of Chinese Academy of Sciences BeijingChina101408 International School for Optoelectronic Engineering Qilu University of Technology(Shandong Academy of Sciences)No.3501 University RoadJinanShandongChina250353 North China University of Technology BeijingChina100144

A reflective faceted structure is proposed to reshaping an incoherent light beam into two focalized spots-To obtain the desired irradiance distribution on a detector,custom optimization function is written,and the two dimensional tilt angles of each facet are optimized automatically in a pure non-sequential mode in Zemax OpticStudio *** result is also confirmed inside LightTools&2 from *** measuring the quality of the optimization result in the case of two spots focalization,four factors including efficiency on the detector,uniformity,the root mean square error and the correlation coefficient are *** four factors are used to evaluate the influence of several parameters on the irradiance *** parameters include the incidence angle,the divergence angle,the facet size,the source type and the resolution of the facet angular ***,an analysis of those parameters is made and the performance of this type of component is demonstrated.

关键词： Incoherent beam shaping micro lens array custom optimization

Mapping the antiparallel aligned domain rotation by microwave excitation

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Chinese Physics B 2024年第9期33卷 599-605页

作者： Jing Zhang yuanzhi cui Xiaoyu Wang Chuang Wang Mengchen Liu Jie Xu Kai Li Yunhe Zhao Zhenyan Lu Lining Pan Chendong Jin Qingfang Liu Jianbo Wang Derang Cao College of Physics Qingdao UniversityQingdao 266071China National Demonstration Center for Experimental Applied Physics Education Qingdao UniversityQingdao 266071China SKLSM Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China College of Chemistry Chemical Engineering and Resource UtilizationNortheast Forestry UniversityHarbin 150040China Hunan Provincial Key Laboratory of Intelligent Sensors and Advanced Sensor Materials School of Physics and ElectronicsHunan University of Science and TechnologyXiangtan 411201China CAS Key Laboratory of Magnetic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Key Laboratory of Optic-Electronic Information and Materials of Hebei Province Research Center for Computational PhysicsCollege of Physics Science and TechnologyHebei UniversityBaoding 071002China Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education Lanzhou UniversityLanzhou 730000China Key Laboratory of Special Functional Materials and Structural Design Ministry of EducationLanzhou UniversityLanzhou 730000China

The evolution process of magnetic domains in response to external fields is crucial for the modern understanding and application of *** this study,we investigated the domain rotation in stripe domain films of varying thicknesses by examining their response to microwave excitation in four different *** resonance spectra indicate that the rotation field of stripe domain film under an applied magnetic field approaches the field where the resonance mode of sample *** saturation field of the stripe domain film corresponds to the field where the resonance mode disappears when measured in the stripe direction parallel to the microwave magnetic *** results are reproducible and consistent with micromagnetic simulations,providing additional approaches and techniques for comprehending the microscopic mechanisms of magnetic domains and characterizing their rotation.

关键词： stripe domain magnetic film microwave excitation micromagnetic simulation

金属板中基于线性超声相控阵列的损伤检测研究

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电子科技 2017年第10期30卷 33-38页

作者：崔媛智李默江苏大学土木工程与力学学院江苏镇江212013

金属板结构由于在使用过程中受到外界载荷作用极易产生缺陷,而目前对结构初期损伤的实时动态监测仍存在一定困难。超声相控阵阵列检测技术不仅具有较高灵敏度,还具有对损伤进行动态聚焦、提升检测信号信噪比和损伤成像分辨率等优点。通... 详细信息

金属板结构由于在使用过程中受到外界载荷作用极易产生缺陷,而目前对结构初期损伤的实时动态监测仍存在一定困难。超声相控阵阵列检测技术不仅具有较高灵敏度,还具有对损伤进行动态聚焦、提升检测信号信噪比和损伤成像分辨率等优点。通过对线性相控阵列参数进行优化设计,结合Lamb波频率调谐理论,使用频散效应弱的单一S0模态Lamb波,应用相控阵逐点扫描算法,通过仿真和实验两种手段针对板中贯穿刻槽损伤进行精确定位并成像,结果显示,该算法可对损伤所在方位及走向做出判断,得到较高质量的损伤评估检测信息。为各类大型板状结构长期稳定工作提供理论指导和实验支持。

关键词：线性超声相控阵 S0模态阵列参数优化损伤成像

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基于频率调谐和相控阵的金属板损伤检测

压电与声光 2018年第1期40卷 128-133页

作者：崔媛智骆英徐桂东徐晨光王自平江苏大学土木工程与力学学院高端装备关键结构健康管理国际联合研究中心江苏镇江212013

基于兰姆(Lamb)波的无损检测方法已成为板类结构损伤检测的重要手段之一。然而,Lamb波的多模态与频散特性,使其在传播及信号处理方面有很大的复杂性。该文将Lamb波应用于线性相控阵损伤检测研究,采用频率调谐理论,获得频散效应弱的S_0波... 详细信息

基于兰姆(Lamb)波的无损检测方法已成为板类结构损伤检测的重要手段之一。然而,Lamb波的多模态与频散特性,使其在传播及信号处理方面有很大的复杂性。该文将Lamb波应用于线性相控阵损伤检测研究,采用频率调谐理论,获得频散效应弱的S_0波,对板状结构中裂纹型刻槽损伤,进行直观成像和精确定位。仿真与实验表明,频率调谐法可优选出弱频散的S_0模态用于损伤检测,结合线性相控阵列,可对损伤类型及方位做出判断,得到有效的损伤检测信息。

关键词：超声兰姆(Lamb)波 S0模态线性相控阵损伤成像

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季戊四醇产品中杂质检测与脱除研究

合肥工业大学学报（自然科学版） 2017年第3期40卷 409-413页

作者：李正星姚路路陈远芝崔鹏合肥工业大学化学与化工学院安徽合肥230009

针对工业季戊四醇产品颜色发黄的现象,文章通过核磁共振、拉曼光潽、液质联用等检测手段,确定产品中主要杂质为双季戊四醇、少量多季戊四醇、季戊四醇甲醇醚以及微量的缩醛和酯类化合物。对比12种树脂吸附处理工业季戊四醇样品,优选出... 详细信息

针对工业季戊四醇产品颜色发黄的现象,文章通过核磁共振、拉曼光潽、液质联用等检测手段,确定产品中主要杂质为双季戊四醇、少量多季戊四醇、季戊四醇甲醇醚以及微量的缩醛和酯类化合物。对比12种树脂吸附处理工业季戊四醇样品,优选出强碱性阴离子大孔吸附树脂D201,优化了静态和动态吸附工艺条件。研究结果表明:D201树脂在温度25℃、用量0.67g/L、吸附时间为60min的静态吸附条件下,季戊四醇纯度和白度分别提高至94.34%、99%;在温度25℃、吸附剂床层高径比3∶1、停留时间4 min的动态吸附条件下,纯度和白度分别提升至95.06%、98.9%。

关键词：季戊四醇杂质检测脱除

Research status and prospects of the fractal analysis of metal material surfaces and interfaces

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 20-38页

作者： Qinjin Dai Xuefeng Liu Xin Ma Shaojie Tian Qinghe cui Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced Materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

The complex effects of miR-146a in the pathogenesis of Alzheimer's disease

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Neural Regeneration Research 2025年第5期20卷 1309-1323页

作者： Yunfan Long Jiajia Liu Yu Wang Haidong Guo Guohong cui Department of Neurology Shanghai No.9 People’s HospitalShanghai Jiaotong University School of MedicineShanghaiChina Academy of Integrative Medicine Shanghai University of Traditional Chinese MedicineShanghaiChina School of Integrative Medicine Shanghai University of Traditional Chinese MedicineShanghaiChina Department of Neurology Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina

Alzheimer's disease is a neurodegenerative disorder characterized by cognitive dysfunction and behavioral *** plaques formed through the extracellular deposition of amyloid-βproteins,as well as neurofibrillary tangles formed by the intracellular deposition of hyperphosphorylated tau proteins,comprise two typical pathological features of Alzheimer's *** symptomatic treatment,there are no effective therapies for delaying Alzheimer's disease ***(miR)are small,non-coding RNAs that negatively regulate gene expression at the transcriptional and translational levels and play important roles in multiple physiological and pathological ***,miR-146a,a NF-κB-regulated gene,has been extensively implicated in the development of Alzheimer's disease through several *** has demonstrated substantial dysregulation of miR-146a both during the initial phases and throughout the progression of this *** R-146a is believed to reduce amyloid-βdeposition and tau protein hyperphosphorylation through the TLR/IRAK1/TRAF6 pathway;however,there is also evidence supporting that it can promote these processes through many other pathways,thus exacerbating the pathological manifestations of Alzheimer's *** has been widely reported that miR-146a mediates synaptic dysfunction,mitochondrial dysfunction,and neuronal death by targeting m RNAs encoding synapticrelated proteins,mitochondrial-related proteins,and membrane proteins,as well as other *** the impact on glial cells,miR-146a also exhibits differential *** one hand,it causes widespread and sustained inflammation through certain pathways,while on the other hand,it can reverse the polarization of astrocytes and microglia,alleviate neuroinflammation,and promote oligodendrocyte progenitor cell differentiation,thus maintaining the normal function of the myelin sheath and exerting a protective effect on *** this review,we provide a

关键词： Alzheimer's disease amyloid-β glial cells microRNAs miR-146a neuroinflammatory

A new horizon for neuroscience:terahertz biotechnology in brain research

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Neural Regeneration Research 2025年第2期20卷 309-325页

作者： Zhengping Pu Yu Wu Zhongjie Zhu Hongwei Zhao Donghong cui Shanghai Key Laboratory of Psychotic Disorders Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Psychiatry Kangci Hospital of JiaxingTongxiangZhejiang ProvinceChina Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of ScienceShanghaiChina National Facility for Protein Science in Shanghai Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina

Terahertz biotechnology has been increasingly applied in various biomedical fields and has especially shown great potential for application in brain *** this article,we review the development of terahertz biotechnology and its applications in the field of *** evidence indicates promising prospects for the use of terahertz spectroscopy and terahertz imaging techniques in the diagnosis of amyloid disease,cerebrovascular disease,glioma,psychiatric disease,traumatic brain injury,and myelin *** vitro and animal experiments have also demonstrated the potential therapeutic value of terahertz technology in some neuropsychiatric *** the precise underlying mechanism of the interactions between terahertz electromagnetic waves and the biosystem is not yet fully understood,the research progress in this field shows great potential for biomedical noninvasive diagnostic and therapeutic ***,the biosafety of terahertz radiation requires further exploration regarding its two-sided efficacy in practical *** review demonstrates that terahertz biotechnology has the potential to be a promising method in the field of neuropsychiatry based on its unique advantages.

关键词： biological effect brain neuron neuropsychiatry neuroscience non-thermal effect terahertz imaging terahertz radiation terahertz spectroscopy terahertz technology

Mechanism by which Rab5 promotes regeneration and functional recovery of zebrafish Mauthner axons

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Neural Regeneration Research 2025年第6期20卷 1816-1824页

作者： Jiantao cui Yueru Shen Zheng Song Dinggang Fan Bing Hu Center for Advanced Interdisciplinary Science and Biomedicine of IHM Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina

Rab5 is a GTPase protein that is involved in intracellular membrane trafficking. It functions by binding to various effector proteins and regulating cellular responses, including the formation of transport vesicles and their fusion with the cellular membrane. Rab5 has been reported to play an important role in the development of the zebrafish embryo;however, its role in axonal regeneration in the central nervous system remains unclear. In this study, we established a zebrafish Mauthner cell model of axonal injury using single-cell electroporation and two-photon axotomy techniques. We found that overexpression of Rab5 in single Mauthner cells promoted marked axonal regeneration and increased the number of intra-axonal transport vesicles. In contrast, treatment of zebrafish larvae with the Rab kinase inhibitor CID-1067700markedly inhibited axonal regeneration in Mauthner cells. We also found that Rab5 activated phosphatidylinositol 3-kinase(PI3K) during axonal repair of Mauthner cells and promoted the recovery of zebrafish locomotor function. Additionally, rapamycin, an inhibitor of the mechanistic target of rapamycin downstream of PI3K, markedly hindered axonal regeneration. These findings suggest that Rab5 promotes the axonal regeneration of injured zebrafish Mauthner cells by activating the PI3K signaling pathway.

关键词： axonal regeneration Mauthner cell nerve regeneration Rab5 zebrafish