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光伏型HgCdTe阵列探测器的电学串扰

光学学报 2023年第4期43卷 9-17页

作者：乔帅王睿侯孝成国防科技大学前沿交叉学科学院湖南长沙410073 国防科技大学南湖之光实验室湖南长沙410073 国防科技大学脉冲功率激光技术国家重点实验室湖南长沙410073

阵列探测器单元间的串扰是影响探测效果的重要因素,研究探测器的串扰机理及其抑制措施有助于优化探测器性能。针对激光辐照线阵HgCdTe探测器实验中的串扰现象,使用COMSOL Multiphysics有限元仿真软件建立了激光辐照探测器的三维仿真模型... 详细信息

阵列探测器单元间的串扰是影响探测效果的重要因素,研究探测器的串扰机理及其抑制措施有助于优化探测器性能。针对激光辐照线阵HgCdTe探测器实验中的串扰现象,使用COMSOL Multiphysics有限元仿真软件建立了激光辐照探测器的三维仿真模型,通过模拟芯片内载流子浓度分布、光电流和电场,揭示了电学串扰的产生机理,并针对该器件提出了沟槽隔离的抑制串扰措施。研究结果表明:光生载流子沿线阵排列方向的横向扩散是造成被辐照像元附近像元串扰的直接因素,但对距离辐照区域较远的像元影响较小;公共P极电压降低是导致距离辐照区域较远的像元产生响应的根本原因。此外,仿真结果验证了提出的沟槽隔离措施对电学串扰具有显著的抑制效果。

关键词：探测器 HgCdTe 电学串扰串扰机理沟槽隔离

Seasonal Variations of Mesospheric Densities Observed by Rayleigh Lidar at Golmud,Qinghai

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空间科学学报 2020年第2期40卷 207-214页

作者： DAI Yaru PAN Weilin qiao shuai HU Xiong YAN Zhaoai BAN Chao Near-space Environment Laboratory National Space Science CenterChinese Academy of SciencesBeijing 100190 Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029 University of Chinese Academy of Sciences Beijing 100049 Zhongneng Power-Tech Development Company of Limited Beijing 100034

From Aug.2013 to Oct.2015,a Rayleigh lidar has been used to study the middle atmosphere at Golmud(36.25°N,94.54°E),Qinghai,located in the northeastern part of the Tibetan *** density profiles from 50 to 90 km were retrieved based on 205 nights of lidar observation,with a total of 1616hours of *** compared our lidar density measurements with SABER observations onboard TIMED satellite and MSIS-00 model *** results showed that the annual mean density measured by lidar agreed well with SABER data,but both were lower than that of *** datasets exhibited dominant annual oscillation in the *** 63 to 85 km,the annual amplitude of lidar density is larger than those of SABER and ***(Percentage of Density Difference)was calculated to investigate the mesospheric density *** largest density variations of lidar,MSIS-00,and SABER occurred at around 72 *** lidar and SABER PDD reached their maximum in May,about one month earlier than the MSIS-00;while the minimum PDD appeared in late December for all datasets.

关键词： Lidar SABER MSIS model Mesospheric density Seasonal variations

Initial Results of Lidar Measured Middle Atmosphere Temperatures over Tibetan Plateau

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Atmospheric and Oceanic Science Letters 2014年第3期7卷 213-217页

作者： qiao shuai PAN Weilin ZHU Ke-Yun ZOU Rong-Shi TAN Jing Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO) Institute of Atmospheric PhysicsChinese Academy of Sciences Department of Atmospheric Sciences Chengdu University of Information Technology

During August 2013,a mobile Rayleigh lidar was deployed in Lhasa,Tibet(29.6°N,91.0°E) for making measurements of middle atmosphere densities and temperatures from 30 to 90 *** this paper,the authors present the initial results from this scientific campaign,Middle Atmosphere Remote Mobile Observatory in Tibet(MARMOT),and compared the results to the MSIS-00(Mass Spectrometer and Incoherent Scatter) *** work will advance our understanding of middle atmosphere dynamic processes,especially over the Tibetan Plateau area.

关键词：大气温度中层大气激光雷达青藏高原测量非相干散射大气密度科学活动

一类Filippov型HR神经元模型的全局动力学分析

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山东大学学报（理学版） 2023年第10期58卷 13-23页

作者：刘文岩乔帅高承华西北师范大学数学与统计学院甘肃兰州730070

基于电磁辐射下的HR神经元模型,引入一种以膜电位为阈值的非光滑控制策略,即确定与电磁感应强度和外部刺激电流相对应的切换函数,从而建立一类四维Filippov型HR神经元模型。利用稳定性理论和数值模拟方法讨论2个子系统平衡点的存在性、... 详细信息

基于电磁辐射下的HR神经元模型,引入一种以膜电位为阈值的非光滑控制策略,即确定与电磁感应强度和外部刺激电流相对应的切换函数,从而建立一类四维Filippov型HR神经元模型。利用稳定性理论和数值模拟方法讨论2个子系统平衡点的存在性、稳定性和全局分岔行为。另外,基于双参数分岔分析,研究子系统的双稳态行为和演化模式。进一步,利用Filippov凸组合方法和Utkin等度控制方法分析系统的各类平衡点和滑膜动力学的存在性。最后,采用快-慢动力学的方法揭示阈值控制策略下的滑动放电模式和多稳态特征。

关键词： Filippov型HR神经元阈值控制策略滑膜动力学多稳态快-慢动力学

Risk assessment,fitness cost,cross-resistance,and mechanism of tetraniliprole resistance in the rice stem borer,Chilo suppressalis

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Insect Science 2024年第3期31卷 835-846页

作者： Hao Sun shuai Wang Chong Liu Wen-Kai Hu Jin-Wei Liu Ling-Jun Zheng Meng-Yue Gao Fang-Rui Guo Song-Tao qiao Jun-Li Liu Bo Sun Cong-Fen Gao Shun-Fan Wu College of Plant Protection Nanjing Agricultural UniversityState&Local Joint Engineering Research Center of Green Pesticide Invention and ApplicationNanjingChina Bayer Cropscience(China)Co. Ltd.HangzhouChina

The rice stem borer(RSB),Chilo suppressalis,a notorious rice pest in China,has evolved a high resistance level to commonly used ***,a new anthranilic diamide insecticide,effectively controls multiple pests,including ***,the potential resistance risk of RSB to tetraniliprole is still *** this study,the tetraniliprole-selection(Tet-R)strain was obtained through 10 continuous generations of selection with tetraniliprole 30%lethal concentration(LC_(30)).The realized heritability(h^(2))of the Tet-R strain was 0.387,indicating that resistance of RSB to tetraniliprole developed rapidly under the continuous selection of *** Tet-R strain had a high fitness cost(relative fitness=0.53).We established the susceptibility baseline of RSB to tetraniliprole(lethal concentration at LC_(50)=0.727 mg/L)and investigated the resistance level of 6 field populations to *** tested strains that had resistance to chlorantraniliprole exhibited moderate-to high-level resistance to tetraniliprole(resistance ratio=27.7-806.8).Detection of ryanodine receptor(RyR)mutations showed that the Y4667C,Y4667D,I4758M,and Y4891F mutations were present in tested RSB field *** mutations were responsible for the cross-resistance between tetraniliprole and ***,the clustered regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated protein 9-mediated genome-modified flies were used to study the contribution of RyR mutations to tetraniliprole *** order of contribution of a single RyR mutation to tetraniliprole resistance was Y4667D>G4915E>Y4667C~~I4758M>*** addition,the I4758M and Y4667C double mutations conferred higher tetraniliprole resistance than single Y4667C *** results can guide resistance management practices for diamides in RSB and other arthropods.

关键词： Chilo suppressalis diamide resistance fitness cost cross-resistance RyR target-site mutations

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电场作用下HR神经元的分岔分析及参数辨识

浙江大学学报（理学版） 2022年第6期49卷 691-697,705页

作者：肖冉安新磊祁慧敏乔帅兰州交通大学数理学院甘肃兰州730070

详细分析了电场作用下四维Hindmarsh-Rose (HR)神经元模型的分岔模式及放电行为。通过数值仿真得到该神经元模型的多组双参数分岔图、最大Lyapunov指数图、峰峰间期分岔图等,发现该模型在双参数平面上存在倍周期分岔、加周期分岔等模式... 详细信息

详细分析了电场作用下四维Hindmarsh-Rose (HR)神经元模型的分岔模式及放电行为。通过数值仿真得到该神经元模型的多组双参数分岔图、最大Lyapunov指数图、峰峰间期分岔图等,发现该模型在双参数平面上存在倍周期分岔、加周期分岔等模式及“锯齿状”混沌结构。通过构建合适的目标函数,提出了自适应混合粒子群遗传算法,将神经元模型的参数辨识转化为最优化问题。数值仿真结果表明,算法对神经元模型的参数辨识效果较好,能更准确地辨识未知参数,具有一定优越性。

关键词： HR神经元双参数分岔混合粒子群遗传算法参数辨识

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基于针孔成像原理的监控摄像机标定方法

现代计算机 2022年第9期28卷 91-95,104页

作者：谯帅四川大学网络空间安全学院成都610207

为降低一般安防视频监控场景下摄像机标定的难度、提高方法的通用性,提出了基于针孔成像原理的监控摄像机标定方法。该方法通过分析针孔成像原理和一般安防视频监控场景特点,采用在图形界面中手工确认图像中已知世界坐标系中的目标点以... 详细信息

为降低一般安防视频监控场景下摄像机标定的难度、提高方法的通用性,提出了基于针孔成像原理的监控摄像机标定方法。该方法通过分析针孔成像原理和一般安防视频监控场景特点,采用在图形界面中手工确认图像中已知世界坐标系中的目标点以获取像素坐标系位置的方法,通过矩阵变换快速实现摄像机标定。实验表明,该方法操作简明易懂,精度可满足一般安防视频监控的需求,具有实际应用价值。

关键词：视频监控安防摄像机标定计算机视觉针孔成像原理

Global epidemiology of mental disorder in atrial fibrillation between 1998-2021:A systematic review and meta-analysis

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World Journal of Psychiatry 2024年第1期14卷 179-193页

作者： shuai Zhang Na Zhang Liu Liu Wang Zheng Zi-Lin Ma Si-Yu qiao Ying-Li Zhao Yi-Hong Wei Gang Wu Qiu-Ting Yu Bing Deng Lin Shen Department of Cardiology LongHua Hospital Shanghai University of Traditional Chinese MedicineShanghai 200032China Department of Dermatology Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghai 200437China

BACKGROUND As the burden of mental disorders among patients with atrial fibrillation(AF)increases,researchers are beginning to pay close attention to the risk and prevalence of these *** studies have independently analyzed the risk of comorbidity with depression and anxiety in patients with AF,no study has systematically focused on the global epidemiology of these two mental *** To explore the prevalence of depression and anxiety in patients with *** Five databases were searched from their date of establishment until January *** studies reporting the comorbidity of AF with depression and anxiety,were included in this *** information,such as the first author/publication year,study year,study type,and prevalence of depression and anxiety,were *** SE 15.1 was used to analyze the ***,meta-regression,and sensitivity analyses were performed to estimate study *** After a thorough search,26 studies were identified and included in this *** prevalence rates of depression and anxiety in adults with AF were 24.3%and 14.5%,*** adult males with AF,the prevalence was 11.7%and 8.7%,respectively,whereas in females it was 19.8%and 10.1%,*** older adults with AF,the prevalence rates of depression and anxiety were 40.3%and 33.6%,*** highest regional prevalence of depression and anxiety was observed in European(30.2%)and North American(19.8%)patients with *** In this study,we found that the prevalence of depression and anxiety among patients with AF varies with sex,region,and evaluation scales,suggesting the need for psychological interventions for patients with AF in clinical practice.

关键词： Atrial fibrillation Depression Anxiety Prevalence

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网络空间中基于视频监控的安防技术分析

信息技术与信息化 2023年第8期 156-159页

作者：谯帅四川大学网络空间安全学院四川成都610207

针对依靠人工的视频监控已无法满足当前安防需求的情况,对网络空间中基于视频监控的安防技术进行了综合分析和研究。首先,介绍了安防工作在社会生活中的应用和视频监控的发展历程。其次,概述国内外智能视频监控系统的研究现状,分析国内... 详细信息

针对依靠人工的视频监控已无法满足当前安防需求的情况,对网络空间中基于视频监控的安防技术进行了综合分析和研究。首先,介绍了安防工作在社会生活中的应用和视频监控的发展历程。其次,概述国内外智能视频监控系统的研究现状,分析国内外相关研究的具体案例。最后,介绍了智能视频监控安防算法框架并分析了相关热点技术,如目标检测、目标跟踪、异常行为识别技术等。全面综合分析了网络空间中基于视频监控的安防技术的现状和趋势,对该领域的研究和实践具有重要参考价值。

关键词：网络空间安全智能监控计算机视觉安防技术