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反Opal及二维非线性光子晶体的研究(英文)

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中国科学院研究生院学报 2006年第2期23卷 277-287页

作者：倪培根程丙英张道中中国科学院物理研究所光物理实验室

通过向SiO2 Opal模板中填充钛酸乙酯制备TiO2光子晶体，观测到光子晶体带隙位置的移动达62nm，并发现光子晶体的有序度随填充率的升高而下降．向聚苯乙烯Opal模板中填充钛酸乙酯，制备成当时填充率最高、带隙最短的紫外波段TiO2反Ova光... 详细信息

通过向SiO2 Opal模板中填充钛酸乙酯制备TiO2光子晶体，观测到光子晶体带隙位置的移动达62nm，并发现光子晶体的有序度随填充率的升高而下降．向聚苯乙烯Opal模板中填充钛酸乙酯，制备成当时填充率最高、带隙最短的紫外波段TiO2反Ova光子晶体（中心波长～380nm），并根据测量的其透射谱估算出其填充率约为12％，即Opal模板孔隙的50％被填充．本文还对二维PPLN光子晶体进行了研究．建立了一套高压极化装置和电压数据采集装置，通过外加电场极化法成功制备出了具有正方形和矩形两种晶格形状二维PPLN光子晶体．利用二维PPLN的二阶准相位匹配，测量了其对1．064μm激光的二次谐波转换效率，并研究了晶体的温度、激光的入射角度及占空比对二次谐波转换效率的影响．利用矩形晶格实现了多方向、多波长倍频高效输出．

关键词：光子晶体反Opal 周期极化铌酸锂准相位匹配二次谐波

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江苏省城乡居民健康状况及卫生服务利用分析

中国卫生资源 2017年第2期20卷 158-161,167页

作者：胡丹朱靖杨帆薛成兵陈家应南京医科大学卫生政策研究中心/健康江苏建设与发展研究院江苏南京201166 东南大学公共卫生学院江苏南京210009 江苏省卫生统计信息中心江苏南京210008

目的:了解江苏省城乡居民的健康状况和卫生服务利用现状。方法:数据来源于第五次国家卫生服务调查江苏省调查资料中的家庭健康询问调查数据。采用多阶段分层抽样的方法,抽取江苏省18个县(市、区),对36 381名城乡居民进行问卷调查,内容... 详细信息

目的:了解江苏省城乡居民的健康状况和卫生服务利用现状。方法:数据来源于第五次国家卫生服务调查江苏省调查资料中的家庭健康询问调查数据。采用多阶段分层抽样的方法,抽取江苏省18个县(市、区),对36 381名城乡居民进行问卷调查,内容包括调查对象人口学特征、自评健康状况以及卫生服务利用现状。结果:城市地区的居民健康自评状况稍好于农村居民。城市居民两周患病率、慢性病患病率和年住院率均高于农村居民,其中城市地区3个指标分别为19.90%、40.66%和8.93%,农村地区分别为17.50%、29.49%和8.23%。而农村居民的两周就诊率为12.30%,高于城市居民的10.60%。城乡居民在两周首诊机构和住院机构的选择差异具有统计学意义。结论:江苏省城乡居民的健康状况有所改善,农村居民两周就诊率高于城市,居民对卫生服务的利用更倾向于基层机构,城乡住院服务机构的病人流向变化存在差异。建议实施区域卫生规划,根据城乡地区的实际情况合理配置卫生资源,提高城市居民卫生资源利用效率。

关键词：城乡居民健康状况卫生服务利用

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论电子游戏中的道德渗透机制

哈尔滨工业大学学报（社会科学版） 2016年第3期18卷 76-80页

作者：陈月华程冰樱哈尔滨工业大学媒体技术与艺术系哈尔滨150001

被称为第九艺术的电子游戏是青少年特别喜爱的游戏形态,电子游戏与青少年玩家的道德素养养成有着相当密切的关联。目前电子游戏中存在的色情、暴力、攻击、窥视、破坏等大量不良信息有可能导致青少年玩家的道德认知偏差、道德情感扭曲... 详细信息

被称为第九艺术的电子游戏是青少年特别喜爱的游戏形态,电子游戏与青少年玩家的道德素养养成有着相当密切的关联。目前电子游戏中存在的色情、暴力、攻击、窥视、破坏等大量不良信息有可能导致青少年玩家的道德认知偏差、道德情感扭曲和道德行为失范。电子游戏有着天然的培养功能,我们应充分利用电子游戏对青少年的强大吸引力,发挥电子游戏的正向效应。基于接受心理与内化理论,在电子游戏中进行道德渗透不失为一种有效的路径。依据美国未来学家、著名游戏设计师简·麦戈尼格尔提出的游戏设计理论,面向游戏目标的道德渗透机制、面向游戏规则的道德渗透机制、面向游戏反馈的道德渗透机制,可以更有效地发挥电子游戏的正向功效,于潜移默化中提升青少年玩家的道德素养。

关键词：电子游戏接受与内化道德渗透机制

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光镊系统中光放大倍数对测量结果的影响

物理学报 2005年第3期54卷 1162-1166页

作者：刘春香郭红莲降雨强李兆霖程丙英张道中中国科学院物理研究所和凝聚态物理中心光物理开放实验室北京100080 山西大学量子光学与光量子器件国家重点实验室物理电子工程学院太原030006

从实验和理论两方面 ,讨论了在光镊系统中 ,光放大倍数在 5 0 0— 10 0 0倍、间隔为 10 0倍的范围内 ,对四象限探测器位移测量信号的幅值及其线性度的影响 .实验结果与理论结果符合很好 ,得出相同的结论 :当微粒的影像半径约为四象限探... 详细信息

从实验和理论两方面 ,讨论了在光镊系统中 ,光放大倍数在 5 0 0— 10 0 0倍、间隔为 10 0倍的范围内 ,对四象限探测器位移测量信号的幅值及其线性度的影响 .实验结果与理论结果符合很好 ,得出相同的结论 :当微粒的影像半径约为四象限探测器探头半径 (5 0— 6 0 ) %时 ,可以得到幅值大、线性好的输出信号 .

关键词：光放大光镊四象限探测器线性度输出信号间隔位移测量倍数半径微粒

Cerebral fat embolism following autologous fat injection in facial reconstruction:A case report

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World Journal of Clinical Cases 2025年第2期13卷 50-58页

作者： Xiu-ying Chen Fa Shen Chang cheng Yu-Han Wang Wen-Chao cheng De-Zhi Yuan Wen Huang Department of Neurology Chongqing Emergency Medical CenterChongqing University Central HospitalChongqing 400000China Department of Neurology Xinqiao HospitalThe Army Medical University(Third Military Medical University)Chongqing 400000China

BACKGROUND Autologous fat injection in facial reconstruction is a common cosmetic *** cerebral fat embolism(CFE)as a complication is rare,it carries serious health *** SUMMARY We present a case of a 29-year-old female patient who developed acute CFE following facial fat filling *** the surgery,the patient experienced symptoms including headache,nausea,vomiting,and difficulty breathing,which was followed by neurological symptoms such as slurred speech and left-sided *** physical examination and auxiliary investigations,including blood tests,head and neck computed tomography angiography,and cranial magnetic resonance diffusion-weighted imaging,were performed upon *** clinical diagnosis was acute cerebral embolism following facial fat filling *** included measures to improve cerebral circulation,dehydration for intracranial pressure reduction,nutritional support,and rehabilitation therapy for left limb *** patient showed a significant improvement in symptoms after 2 weeks of *** recovered left limb muscle strength to grade 5,had clear speech,and experienced complete relief of *** Our case highlights the potential occurrence of severe complications in patients undergoing fat injection in facial *** prevent these complications,plastic surgeons should enhance their professional knowledge and skills.

关键词： Cerebral fat embolism Mechanical thrombectomy Thrombolysis Steroid therapy Symptomatic treatment Case report

Three-dimensional fracture of UO2 ceramic pellets by phase field modeling

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 169-180页

作者： Wei Xiong Xuan Ye Hongzhang cheng Xiaoming Liu Institute of Nuclear and New Energy Technology Collaborative Innovation Center of Advanced Nuclear Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University State Key Laboratory of Nonlinear Mechanics Institute of Mechanics Chinese Academy of Sciences School of Engineering Science University of Chinese Academy of Sciences

Fracture is the primary failure type for the UO2ceramic pellets,which are operated under irradiation and thermal processes,and physically confined by the *** this work,by combining closely coupled physical processes of heat conduction,heat transfer,and mechanical deformation with the cohesive phase field framework,we proposed a high-precision modeling of quasistatic cracking of three-dimensional （3D） UO2ceramic fuel pellets under high temperature and *** simulation results agree well with the experimental results,indicating that the proposed method has the potential to capture 3D crack modes in the interested time ***,we studied the relation of the 3D fracture patterns of fuel pellets with the peak power *** was found that the power level plays a critical role in determining the competition between radial and circumferential cracks,as well as transverse penetrating cracks.

关键词： phase field method nuclear fuel pellet coupled thermo-mechanical model thermal fracture

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光阱位置操纵系统的研究

光学精密工程 2001年第1期9卷 55-58页

作者：姚新程李兆霖郭红莲程丙英张道中中国科学院物理研究所凝聚态物理中心北京100080

利用 He-Ne激光器 ,在 LEICA DMIRBE倒置显微镜上建立了可对生物样品进行三维操纵的光镊系统。在光镊的研制过程中 ,我们重点对光阱的横向位置操纵系统进行了研究。理论分析及实验表明 ,利用平移反射镜及转动反射镜的方案均可实现光阱... 详细信息

利用 He-Ne激光器 ,在 LEICA DMIRBE倒置显微镜上建立了可对生物样品进行三维操纵的光镊系统。在光镊的研制过程中 ,我们重点对光阱的横向位置操纵系统进行了研究。理论分析及实验表明 ,利用平移反射镜及转动反射镜的方案均可实现光阱位置的横向操纵。本文对平移反射镜及转动反射镜实现光阱位置操纵的机理进行了详细的论述 ,并对操纵过程中保证光阱质量不发生变化的条件进行了理论分析和说明。此外 ,比较分析表明 ,与平移反射镜系统相比 ,转镜系统在光镊技术中的应用可加快光镊操纵速度、简化光阱位置操纵系统的复杂程度。

关键词：阱位操作系统光镊光阱转镜系统激光器生物样品

Tailoring Light–Matter Interactions in Overcoupled Resonator for Biomolecule Recognition and Detection

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Nano-Micro Letters 2025年第1期17卷 262-280页

作者： Dongxiao Li Hong Zhou Zhihao Ren cheng Xu chengkuo Lee Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore Center for Intelligent Sensors and MEMS(CISM) National University of SingaporeSingapore 117608Singapore

Plasmonic nanoantennas provide unique opportunities for precise control of light–matter coupling in surface-enhanced infrared absorption(SEIRA)spectroscopy,but most of the resonant systems realized so far suffer from the obstacles of low sensitivity,narrow bandwidth,and asymmetric Fano resonance ***,we demonstrated an overcoupled resonator with a high plasmon-molecule coupling coefficient(μ)(OC-Hμresonator)by precisely controlling the radiation loss channel,the resonator-oscillator coupling channel,and the frequency detuning *** observed a strong dependence of the sensing performance on the coupling state,and demonstrated that OC-Hμresonator has excellent sensing properties of ultra-sensitive(7.25%nm^(−1)),ultra-broadband(3–10μm),and immune asymmetric Fano *** characteristics represent a breakthrough in SEIRA technology and lay the foundation for specific recognition of biomolecules,trace detection,and protein secondary structure analysis using a single array(array size is 100×100μm^(2)).In addition,with the assistance of machine learning,mixture classification,concentration prediction and spectral reconstruction were achieved with the highest accuracy of 100%.Finally,we demonstrated the potential of OC-Hμresonator for SARS-CoV-2 *** findings will promote the wider application of SEIRA technology,while providing new ideas for other enhanced spectroscopy technologies,quantum photonics and studying light–matter interactions.

关键词： Plasmonic nanoantennas Light-matter interaction Surface-enhanced infrared absorption Overcoupled Biosensing

A Multi-Objective Particle Swarm Optimization Algorithm Based on Decomposition and Multi-Selection Strategy

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Computers, Materials & Continua 2025年第1期82卷 997-1026页

作者： Li Ma Cai Dai Xingsi Xue cheng Peng School of Computer Science Shaanxi Normal UniversityXi’an710119China Fujian Provincial Key Laboratory of Big Data Mining and Applications Fujian University of TechnologyFuzhou350118China Information Construction and Management Center and Institute of Artificial Intelligence and Educational New Productivity Ningxia Normal UniversityGuyuan756099China

The multi-objective particle swarm optimization algorithm(MOPSO)is widely used to solve multi-objective optimization *** the article,amulti-objective particle swarm optimization algorithmbased on decomposition and multi-selection strategy is proposed to improve the search ***,two update strategies based on decomposition are used to update the evolving population and external archive,***,a multiselection strategy is *** first strategy is for the subspace without a non-dominated *** the neighbor particles,the particle with the smallest penalty-based boundary intersection value is selected as the global optimal solution and the particle far away fromthe search particle and the global optimal solution is selected as the personal optimal solution to enhance global *** second strategy is for the subspace with a non-dominated *** the neighbor particles,two particles are randomly selected,one as the global optimal solution and the other as the personal optimal solution,to enhance local *** third strategy is for Pareto optimal front(PF)discontinuity,which is identified by the cumulative number of iterations of the subspace without non-dominated *** the subsequent iteration,a new probability distribution is used to select from the remaining subspaces to ***,an adaptive inertia weight update strategy based on the dominated degree is designed to further improve the search ***,the proposed algorithmis compared with fivemulti-objective particle swarm optimization algorithms and five multi-objective evolutionary algorithms on 22 test *** results show that the proposed algorithm has better performance.

关键词： Multi-objective optimization multi-objective particle swarm optimization decomposition multi-selection strategy