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Exciting broadband thermochromic transmission property opposite to vanadium dioxide in the atmospheric window

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Science China(Technological Sciences) 2024年第7期67卷 2244-2254页

作者： GONG YiQuan GUO YanMing CHEN ShuNi LI Meng pan qinghui SHUAI Yong Ministry of Industry and Information Technology Key Laboratory of Aerospace Thermophysics School of Energy Science and EngineeringHarbin Institute of TechnologyHarbin 150001China

The traditional telecommunications band performs poorly in harsh weather conditions due to atmospheric absorption. In recent years, researchers have begun to study optical communication through atmospheric windows, and optical switches are an essential component of optical communication. A broadband atmospheric window optical switch was proposed based on Vanadium dioxide and magnetic polaritons(MP). It is formed by the stacking of two metal-dielectric-metal structures. The simulation results show that the modulation depth can reach 98.38%, and the extinction ratio is 17.93 dB. By calculating the magnetic field, we confirmed that the reason for the “off” mode is the coupling between the different MP modes, while the “on”mode is the excitation of MP. The optical switch we proposed may be applied to radiation cooling and optical satellite communication.

关键词： optical communication thermochromic property atmospheric window optical switch magnetic polariton

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八角炭疽病防治技术及推广策略

广东蚕业 2024年第6期58卷 106-108页

作者：盘庆辉广西壮族自治区梧州地区岑溪市七坪林场广西梧州543213

在八角种植过程中,典型的病害炭疽病严重影响了八角种植的产量及质量。文章对广西岑溪市八角炭疽病的发病症状、发病规律进行了分析,探讨了八角炭疽病防治技术及其防治过程以及防治效果,提出了八角炭疽病防治技术的推广策略,供广大同仁... 详细信息

在八角种植过程中,典型的病害炭疽病严重影响了八角种植的产量及质量。文章对广西岑溪市八角炭疽病的发病症状、发病规律进行了分析,探讨了八角炭疽病防治技术及其防治过程以及防治效果,提出了八角炭疽病防治技术的推广策略,供广大同仁参考。

关键词：广西梧州岑溪八角炭疽病防治技术推广策略

Analysis of infrared spectra with narrow band absorption by a graphene/square-ring structure

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Science China(Technological Sciences) 2020年第4期63卷 648-654页

作者： pan qinghui ZHOU SiHong SHUAI Yong TAN HePing School of Energy Science of Engineering Harbin Institute of TechnologyHarbin 150001China

A graphene covered on square-ring structure is designed and fabricated to achieve narrow band absorption of three peaks in the infrared *** absorption rates of graphene/square-ring structures calculated by simulation are 90.49%,65.67%and 20.38%,respectively,and the experimentally measured absorption rates are 82.12%,53.13%,and 16.58%,*** the absorption rate of simulation calculation with experimental measurement,as well as the reasons for the differences are *** dynamic control characteristics of the graphene device are not observed with this structure in the experiment,which is different from the *** analyzed the reason for this distinction and proposed three solutions based on the experimental *** research results of this paper provide an important reference to the design and preparation of graphene devices.

关键词： graphene CVD infrared spectroscopy absorption

“大思政课”建设与哈工大工科课程结合的育人理论与实践

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现代教育科学 2024年第4期 80-85,113页

作者：潘庆辉帅永艾青哈尔滨工业大学黑龙江哈尔滨150001

思政元素融入工科课程的新研究范式昭示着工科领域新教学法的必然性,这一现象关联着学科自身的充实和高校平台的更新,更与高校教师自身的思想政治素养、家国情怀、学术素养等综合能力息息相关。从科技历史的维度思考,新工科教育是传统... 详细信息

思政元素融入工科课程的新研究范式昭示着工科领域新教学法的必然性,这一现象关联着学科自身的充实和高校平台的更新,更与高校教师自身的思想政治素养、家国情怀、学术素养等综合能力息息相关。从科技历史的维度思考,新工科教育是传统工程教育模式不适应第四次工业革命而诞生的适时选择。因此,思政教育的创新思维与其方法论需要结合时代宏观背景凝练出新的向度。“大思政课”视域下,工科课程的思政引领应当遵循以下方向:对学生主体与时代背景互动关系的重视,对立足学生动态、强化辩证思维、创新激发活力3个阶段的满足,以及对家国情怀、综合素养两个主观要素和思政课程原理、思政教育实践两个客观要素的融合。

关键词：大思政课新工科教学法辩证思维家国情怀

Application of CoFe_(2)O_(4)-NiO nanoparticle-coated foam-structured material in a high-flux solar thermochemical reactor

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Science China(Technological Sciences) 2023年第11期66卷 3276-3286页

作者： ZHANG Hao ZHANG XiaoMi YANG DaZhi SHUAI Yong GUENE LOUGOU Bachirou pan qinghui WANG FuQiang School of Electrical Engineering and Automation Harbin Institute of TechnologyHarbin 150001China School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001China School of New Energy Harbin Institute of Technology at WeihaiWeihai 264209China

The splitting of carbon dioxide through the two-step solar thermochemical cycle presents enormous potential,for it holds the dual functionalities of solar fuel production and carbon-based energy ***,the industrialization of this technology is impeded by two critical factors:The absence of fully developed oxygen carriers and advanced reaction devices that deliver exceptional *** order to identify a potentially effective oxygen carrier,50 wt%NiO-modified Co Fe_(2)O_(4)is selected as the active component and characterized by means of thermogravimetry,scanning electron microscopy,and energy dispersive spectroscopy,so as to clarify its oxygen exchange capacity,micromorphology and elemental composition in high-temperature thermochemical ***,nanoparticle-coated foam-structured materials are prepared in combination with Si C ceramic foam for experimental testing in a high-flux solar *** results indicate that a peak CO yield of 1.96 m L min^(-1)g^(-1)can be gained in a 1500–1250 K preliminary test,demonstrating the application potential of the *** contrast to conventional redox materials,the CO_(2)activity of the materials synthesized in this study exhibits an enhancement with rising oxidation *** means that isothermal cycles can potentially achieve higher conversion and fuel yield than non-isothermal cycles,while simultaneously reducing the amount of irreversible heat loss during high-temperature *** the estimated steadystate thermal efficiency of the solar reactor can reach up to 42%,further optimization of the reactor design is necessary to enhance energy conversion efficiency,as it is partially limited by the dimensions of the reaction chamber.

关键词： solar thermochemistry CO_(2)splitting two-step redox cycle iron-base oxygen carrier reactor design

Generative deep-learning-embedded asynchronous structured light for three-dimensional imaging

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Advanced Photonics 2024年第4期6卷 45-58页

作者： Lei Lu Chenhao Bu Zhilong Su Banglei Guan Qifeng Yu Wei pan qinghui Zhang Henan University of Technology College of Information Science and EngineeringZhengzhouChina Shanghai University Shanghai Institute of Applied Mathematics and MechanicsSchool of Mechanics and Engineering ScienceShanghai Key Laboratory of Mechanics in Energy EngineeringShanghaiChina Shaoxing Research Institute of Shanghai University ShaoxingChina National University of Defense Technology College of Aerospace Science and EngineeringChangshaChina OPT Machine Vision Tech Co. Ltd.Department of Research and DevelopmentDongguanChina

Three-dimensional(3D)imaging with structured light is crucial in diverse scenarios,ranging from intelligent manufacturing and medicine to ***,current structured light methods rely on projector-camera synchronization,limiting the use of affordable imaging devices and their consumer *** this work,we introduce an asynchronous structured light imaging approach based on generative deep neural networks to relax the synchronization constraint,accomplishing the challenges of fringe pattern aliasing,without relying on any a priori constraint of the projection *** overcome this need,we propose a generative deep neural network with U-Net-like encoder-decoder architecture to learn the underlying fringe features directly by exploring the intrinsic prior principles in the fringe pattern *** train within an adversarial learning framework and supervise the network training via a statisticsinformed loss *** demonstrate that by evaluating the performance on fields of intensity,phase,and 3D *** is shown that the trained network can separate aliased fringe patterns for producing comparable results with the synchronous one:the absolute error is no greater than 8μm,and the standard deviation does not exceed 3μ*** results on multiple objects and pattern types show it could be generalized for any asynchronous structured light scene.

关键词： structured light fringe pattern projection asynchrony deep learning generative neural networks three-dimensional imaging

血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平与局部晚期食管癌同步放化疗疗效及预后的关系研究

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中外医学研究 2024年第7期22卷 58-62页

作者：苏淼毅苏松毅蒋才慧林剑辉黄世宝潘清辉梁德川郑维奇孙争强泉州市光前医院福建泉州362000

目的:探究血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平与局部晚期食管癌同步放化疗疗效及预后的关系。方法:回顾性分析2021年6月—2023年6月于泉州市光前医院进行局部晚期食管癌同步放化疗治疗的118例食管癌患者的临床资料,根据治疗效... 详细信息

目的:探究血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平与局部晚期食管癌同步放化疗疗效及预后的关系。方法:回顾性分析2021年6月—2023年6月于泉州市光前医院进行局部晚期食管癌同步放化疗治疗的118例食管癌患者的临床资料,根据治疗效果分为有效组(n=93)、无效组(n=25),比较两组治疗前后血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平,采用受试者操作特征(ROC)曲线分析血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平联合诊断疗效的价值。根据治疗后6个月是否出现不良事件将其分为预后良好组(n=85)、预后不良组(n=33),比较两组基线资料及血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平,分析血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平与预后的相关性。结果:治疗后,有效组血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平均高于无效组,差异有统计学意义(P<0.05)。血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平联合预测疗效的AUC为0.911,高于血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平单独预测的0.827、0.743、0.736。预后良好组血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平高于预后不良组,差异有统计学意义(P<0.05)。Spearman相关性分析结果显示,血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平均与局部晚期食管癌患者预后呈正相关(P<0.05)。结论:血清CD3^(+)、CD4^(+)、CD8^(+)T淋巴细胞水平可作为临床评估食管癌患者同步放化疗疗效的辅助指标,与其预后呈正相关性,可为临床评估疗效及预后提供可靠依据。

关键词： T淋巴细胞局部晚期食管癌同步放化疗

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氨-硫酸铵法生产氧化锌新工艺

无机盐工业 2015年第8期47卷 40-44页

作者：潘庆辉博罗县安全生产应急救援指挥中心广东惠州516100 江西筐庐科技有限公司

提出了氨-硫酸铵法生产氧化锌的新工艺。以锌焙砂(Zn O质量分数为78.05%)、(NH4)2SO2、NH3·H2O为原料(物质的量比为1∶1.2∶2.4),固液比(g/m L)为1∶7,并按锌培砂原料含砷量加入相应的(NH4)2S2O8,在60℃下恒温搅拌2 h浸出后过滤。在浸... 详细信息

提出了氨-硫酸铵法生产氧化锌的新工艺。以锌焙砂(Zn O质量分数为78.05%)、(NH4)2SO2、NH3·H2O为原料(物质的量比为1∶1.2∶2.4),固液比(g/m L)为1∶7,并按锌培砂原料含砷量加入相应的(NH4)2S2O8,在60℃下恒温搅拌2 h浸出后过滤。在浸出液冷却后加入Fe SO4·H2O除砷;过滤后加入Ba S及锌粉除重金属。对主要含Zn(NH3)4SO4的料液进行蒸氨,蒸至混浊点后10 min为宜,部分锌转化为固态锌Zn SO4·Zn(OH)2。料液冷却后加NH4HCO3和CO2气体沉锌;得到前驱体Zn CO3后过滤、烘干,并在300℃下煅烧4 h,得到Zn O产品。本方法制备出的Zn O具有优良的物理性质,且杂质含量低,符合相关氧化锌国家和行业标准,并能实现工业化生产。实验还对锌浸出率和产品Zn O活性影响因素开展了研究,并对产品Zn O做了检测表征。

关键词：氨-硫酸铵法氧化锌锌焙砂

A module based modeling framework for estimating lunar dust deposition due to human activities

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Chinese Journal of Aeronautics 2024年第2期37卷 501-510页

作者： Chunjian pan College of Automation Engineering Shanghai University of Electric PowerShanghai 200090China

Lunar dust is considered to be one of the top challenges for enabling humans to have extended stays on the *** activities such as module landings and launches,walking,rover operation and construction activities will inevitably produce a significant amount of ***,it is important to estimate the potential range and intensity of dust deposition caused by these activities to minimize dust accumulation over time and for maintenance planning and execution.A modular model that correlates the dust deposition distribution with initial mean dust particle velocity,its mean ejected angle and the total amount of ejected mass is developed for an elementary mechanical *** modular model is further employed to form a modeling framework to estimate dust deposition of a trajectory based activity of similar repeated movements such as the landing process of a lander,walking and rover *** model forms a unified modeling framework for different trajectory-based activities and is shown to predict consistent and physically meaningful ranges and intensities of dust deposition provided reliable data to calibrate the model parameters.

关键词： Lunar dust Dust deposition Lunar lander Lunar construction Model calibration