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Reconfigurable and polarization-dependent optical filtering for transflective full-color generation utilizing low-loss phase-change materials

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Journal of Semiconductors 2024年第7期45卷 46-53页

作者： shuo deng Mengxi Cui Jingru Jiang Chuang Wang Zengguang Cheng Huajun Sun Ming Xu Hao Tong Qiang He Xiangshui Miao School of Integrated Circuits Huazhong University of Science and TechnologyWuhan 430074China Hubei Yangtze Memory Laboratories Wuhan 430205China School of Microelectronics Fudan UniversityShanghai 200433China

All-dielectric metasurface, which features low optical absorptance and high resolution, is becoming a promising candidate for full-color generation. However, the optical response of current metamaterials is fixed and lacks active tuning. In this work, we demonstrate a reconfigurable and polarization-dependent active color generation technique by incorporating low-loss phase change materials(PCMs) and CaF_2 all-dielectric substrate. Based on the strong Mie resonance effect and low optical absorption structure, a transflective, full-color with high color purity and gamut value is achieved. The spectrum can be dynamically manipulated by changing either the polarization of incident light or the PCM state. High transmittance and reflectance can be simultaneously achieved by using low-loss PCMs and substrate. The novel active metasurfaces can bring new inspiration in the areas of optical encryption, anti-counterfeiting, and display technologies.

关键词： structural color reconfigurable all-dielectric metasurfaces phase change material

A simplified optical millimeter-wave generation scheme based on frequency-quadrupling

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Optoelectronics Letters 2020年第1期16卷 7-11页

作者： TAO Long-biao GAO Hong-yun deng shuo LüHai-fei WEN Xiao-yan LI Min Physical Department College of Science and TechnologyWuhan University of TechnologyWuhan 430070China

This paper analyzes and demonstrates a simplified frequency quadrupling configuration for optical millimeter-wave(mm-wave)generation,in which the electrical phase shifter and optical filter are *** analysis is given to reach the optimum operating conditions including direct current(DC)bias voltage,optical transmission point of the dual-parallel Mach-Zehnder modulator(MZM)bias voltage,optical transmission point of the dual-parallel Mach-Zehnder modulator(DP-MZM),amplitude of the radio frequency(RF)driving signal and the impact of the extinction ratio(EF)on the optical sideband suppression ratio(OSSR)and radio frequency spurious suppression ratio(RFSSR).Experiments prove an OSSR of 15 dB and an RFSSR of 26 dB for the new frequency quadrupling scheme at 6 GHz,8 GHz and 10 GHz of RF driving signal without any electrical phase shifter or optical *** system exhibits the advantage of low wavelength dependence and large frequency tunable range.

关键词： millimeter optical modulator

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从《渐江研究》看渐江

艺术百家 2022年第1期38卷 70-73页

作者：邓硕南京艺术学院发展规划与社会合作办公室江苏南京210013

渐江在世时即是有很大影响力的画家,尤其在区域画坛上更是首屈一指,因为其遗民的身份问题,有清一代在主流视域中不受重视,然而清亡以后,他的艺术地位很快被拔升,相应的也出现了关于渐江的研究。然而渐江本人受性偏孤,经过两百余年的岁... 详细信息

渐江在世时即是有很大影响力的画家,尤其在区域画坛上更是首屈一指,因为其遗民的身份问题,有清一代在主流视域中不受重视,然而清亡以后,他的艺术地位很快被拔升,相应的也出现了关于渐江的研究。然而渐江本人受性偏孤,经过两百余年的岁月流转,关于他的资料是相对较少的,因此学界中关于渐江的个案研究亦少之。《渐江研究》在吸收前人研究成果的同时,力求将渐江置于具体时代中,将破碎的资料在时代语境中勾连,通过画作探讨其思想取向、精神根源,以至还原其本心本性。

关键词：渐江时代语境性格主导多重视角

Non-coding RNAs in acute ischemic stroke:from brain to periphery

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Neural Regeneration Research 2025年第1期20卷 116-129页

作者： shuo Li Zhaohan Xu Shiyao Zhang Huiling Sun Xiaodan Qin Lin Zhu Teng Jiang Junshan Zhou Fuling Yan Qiwen deng Department of Neurology Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina Department of Neurology Zhongda HospitalSchool of MedicineSoutheast UniversityNanjingJiangsu ProvinceChina General Clinical Research Center Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina

Acute ischemic stroke is a clinical emergency and a condition with high morbidity,mortality,and *** predictive,diagnostic,and prognostic biomarkers and effective therapeutic targets for acute ischemic stroke remain *** innovations in high-throughput gene sequencing analysis,many aberrantly expressed non-coding RNAs(ncRNAs)in the brain and peripheral blood after acute ischemic stroke have been found in clinical samples and experimental *** expressed ncRNAs in the post-stroke brain were demonstrated to play vital roles in pathological processes,leading to neuroprotection or deterioration,thus ncRNAs can serve as therapeutic targets in acute ischemic ***,distinctly expressed ncRNAs in the peripheral blood can be used as biomarkers for acute ischemic stroke prediction,diagnosis,and *** particular,ncRNAs in peripheral immune cells were recently shown to be involved in the peripheral and brain immune response after acute ischemic *** this review,we consolidate the latest progress of research into the roles of ncRNAs(microRNAs,long ncRNAs,and circular RNAs)in the pathological processes of acute ischemic stroke–induced brain damage,as well as the potential of these ncRNAs to act as biomarkers for acute ischemic stroke prediction,diagnosis,and *** from this review will provide novel ideas for the clinical application of ncRNAs in acute ischemic stroke.

关键词： acute ischemic stroke apoptosis blood–brain barrier damage circular RNAs excitatory toxicity long non-coding RNAs microRNAs neuroinflammation non-coding RNAs oxidative stress

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知识图谱在数智化时代中的教学创新及作用

河北师范大学学报（教育科学版） 2024年第5期26卷 100-102页

作者：邓硕闫焱河北地质大学数理教学部河北石家庄050031 华北理工大学理学院河北唐山063210

数字化人工智能技术的快速发展正在深刻地影响着教育领域。知识图谱在教育数字化转型中扮演着至关重要的角色,它推动了教育的个性化和智能化发展,提高了教育教学的质量和效率。知识图谱使教育者能够将课程内容以可视化的方式展示,从而... 详细信息

数字化人工智能技术的快速发展正在深刻地影响着教育领域。知识图谱在教育数字化转型中扮演着至关重要的角色,它推动了教育的个性化和智能化发展,提高了教育教学的质量和效率。知识图谱使教育者能够将课程内容以可视化的方式展示,从而促进了教学创新和课程改革。在混合式教学设计中,知识图谱的应用为学生提供了个性化学习推荐和智能化学习辅助,提升了学习效率。此外,知识图谱在教学资源推荐、学习行为数据化、课程知识点脉络与学情分析的可视化等方面发挥着重要作用,促进了教学资源的智能化和精准化。随着技术的持续进步,知识图谱有望在教育、教学和学习等方面发挥深远的变革。教育工作者,在积极拥抱知识图谱技术的同时,也应审慎地从教育本质出发,确保其开发应用与学习教学的根本原则相契合,以实现教育创新与知识图谱构建的有机结合。

关键词：知识图谱智能化可视化数智化教育教育数字化转型

Synergistic myoprotection of L-arginine and adenosine in a canine model of global myocardial ischaemic reperfusion injury

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Chinese Medical Journal 2007年第22期120卷 1975-1981页

作者： DU Lei DIAN Ke CHEN Hui-jiao AN Qi JIA Meng-xing YANG Ping-liang WANG Wei deng shuo-zeng LIU Jin Department of Anaesthesiology West China Hospital Sichuan University Chengdu 610041 China Department of Thoracic and Cardiovascular Surgery West China Hospital Sichuan University Chengdu 610041 China Department of Pathology West China Hospital Sichuan University Chengdu 610041 China

Background Endogenous nitric oxide and adenosine increase simultaneously to keep the balance of energy demand and supply when the oxygen supply is insufficient, which suggests that nitric oxide and adenosine might exert a synergistic myoprotection during tissue hypoxia. In this study, we tested this hypothesis utilizing a canine model of prolonged global myocardial ischaemic reperfusion injury. Methods In this double blind, controlled study, the hearts of 24 anaesthetized mongrel dogs were arrested for 2 hours with aortic cross clamping and blood cardioplegia. The treatment groups were those supplemented with 2 mmol/L L-arginine （ARG）, supplemented with 1 mmol/L adenosine （ADO）, ARG ＋ ADO supplemented with both, and no supplementation （control）（n=6 in each group）. Haemodynamics, biochemical indices, adenosine triphosphate （ATP） content and myeloperoxidase activities of myocardium were determined to evaluate myocardial injury. Statistical comparison was performed by two way ANOVA. Results Although the requirements for inotropic supports were higher, the cardiac outputs were lower in control group than in ARG, ADO and the combination groups. Plasma cardiac troponin I levels were higher and the areas of hydropic changes were larger in control group than in ARG and ADO groups. Combination of arginine and adenosine provided further myoprotection with respect to better cardiac performance, lower release of cardiac troponin I, and smaller areas of hydropic changes compared with ARG and ADO groups. ATP content was higher, but myeloperoxidase activities of myocardium were significantly lower in the combination group than in control, ARG and ADO groups （P〈0.05）. Conclusions Combination of L-arginine and adenosine provides synergistic myoprotection in a canine model of global myocardial ischaemia. Thus, the combination is recommended when the heart is exposed to a prolonged ischaemia during cardiac surgery.

关键词： nitric oxide adenosine myocardium injury, ischaemic reperfusion

取碎屑状煤芯时的煤层瓦斯含量直接测定方法研究

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采矿与安全工程学报 2013年第4期30卷 610-615页

作者：王刚谢军段毅邓硕刚山东科技大学山东省矿山灾害预防控制教育部重点实验室山东青岛266590 山东科技大学资源与环境工程学院山东青岛266590 澳大利亚联邦科学与工业研究组织林东矿业集团有限公司贵州贵阳550056

针对直接法测定煤层瓦斯含量时难以取得完整煤芯的难题,提出了取碎屑状煤芯时的瓦斯损失量数学模型,依据该模型采用分步拟合的方法确定和k值,并形成了快速取碎屑状煤芯时的煤层瓦斯含量快速测定方法。现场试验结果表明:采用分步拟合确... 详细信息

针对直接法测定煤层瓦斯含量时难以取得完整煤芯的难题,提出了取碎屑状煤芯时的瓦斯损失量数学模型,依据该模型采用分步拟合的方法确定和k值,并形成了快速取碎屑状煤芯时的煤层瓦斯含量快速测定方法。现场试验结果表明:采用分步拟合确定瓦斯损失量时,实验测定解吸的瓦斯体积V2和(t 0 t)的相关因子基本在0.99以上,并结合煤层瓦斯含量直接测定工艺测得桐梓煤矿7#,9#和10#煤层瓦斯含量及瓦斯压力,测得结果符合该煤层多次发生突出的情况。表明运用该方法能够准确地计算煤层瓦斯含量,为煤层瓦斯含量作为区域预测煤与瓦斯突出的指标奠定了基础。

关键词：碎屑状煤芯瓦斯含量解吸直接测定法补偿

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金刚石压砧内单晶硅高压折射率的椭偏测量

光子学报 2023年第11期52卷 171-181页

作者：鲍晓艳邓硕吕海飞黎敏武汉理工大学理学院武汉430070

针对高压对顶砧入射角度受限、样品微小的特殊测量条件,设计原位椭偏测量系统,实现450~700 nm光谱范围的小角度椭偏测量。建立光学模型,获得2~9 GPa下单晶硅的折射率,发现单晶硅的折射率随压力增加而增大。与高压拉曼光谱的对比说明椭... 详细信息

针对高压对顶砧入射角度受限、样品微小的特殊测量条件,设计原位椭偏测量系统,实现450~700 nm光谱范围的小角度椭偏测量。建立光学模型,获得2~9 GPa下单晶硅的折射率,发现单晶硅的折射率随压力增加而增大。与高压拉曼光谱的对比说明椭偏法原位监测材料光学性质变化的可能性。本文研究可为高压下材料的光学常数及其原位测量提供有益补充。

关键词：高压椭偏光学模型折射率单晶硅

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工业数据驱动的轧机振动预测和工艺优化

振动．测试与诊断 2022年第1期42卷 110-116,198页

作者：崔金星邓烁彭艳邢建康燕山大学国家冷轧板带装备及工艺工程技术研究中心秦皇岛066004 上海微电子装备(集团)股份有限公司上海201203

为研究动态轧制过程轧机振动复杂工艺机理和工艺优化方法,利用生产过程工艺数据和设备状态数据建立数据模型,研究了工业数据在轧机稳定预测和控制中的应用方法。以某1580 mm热连轧机F3机架垂直振动为研究对象,跟踪记录和采集板带生产过... 详细信息

为研究动态轧制过程轧机振动复杂工艺机理和工艺优化方法,利用生产过程工艺数据和设备状态数据建立数据模型,研究了工业数据在轧机稳定预测和控制中的应用方法。以某1580 mm热连轧机F3机架垂直振动为研究对象,跟踪记录和采集板带生产过程轧辊振动数据和轧制工艺参数,并完成工业生产数据筛选、清洗和归一化处理工作;搭建机理数据双向驱动的贝叶斯神经网络数据模型,用动态工艺参数和工作辊垂直振动加速度完成数据训练和验证。仿真分析结果表明:通过贝叶斯分类器和神经网络数据模型相结合的方法,可实现应用工业生产过程工艺参数对轧机运行状态高精度预测的目的。根据模型揭示的工业数据关系,分析了轧制力和轧制速度合理控制范围,通过数据模型验证了抑振效果显著。本研究对实现工业数据在轧制过程智能化控制中的应用具有参考意义。

关键词：轧机工业数据振动工艺参数优化