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Journal of Ocean University of China 2020年第5期19卷 1042-1050页

作者： CHENG Haoyuan CHU Jinkui ZHANG Ran gui xinyuan TIAN Lianbiao The Key Laboratory for Micro/Nano Technology and System of Liaoning Province Dalian University of TechnologyDalian 116024China

As an important tool for marine exploration, the autonomous underwater vehicle(AUV) must home in and dock at a docking station(DS) to be recharged, repaired, or to exchange information at set intervals. However, the complex and hostile underwater environment makes this process challenging. This study proposes a real-time method based on polarized optical guidance for determining the position and attitude of the AUV relative to its DS. Four polarized artificial underwater landmarks are positioned at the DS, which are recognized by the AUV vision system. Compared with light intensity, the polarization of a light beam is known to be better maintained at greater propagation distances, especially in underwater environments. The proposed method, which is inspired by the ability of marine animals to communicate, calculates the pose parameters in less than 10 ms without any other navigational information. The simulation results reveal that the angle errors are small and the position errors are no more than 0.116 m within 100 m in the coastal ocean. The results of underwater experiments further demonstrate the feasibility of the proposed method, which extends the operating distance of the AUV beyond what is currently possible while maintaining the precision of traditional optical guidance.

关键词： polarization optical guidance AUV underwater docking position and attitude estimation

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天空光主导的波浪水面下偏振分布模型仿真

光学学报 2020年第20期40卷 12-19页

作者：褚金奎田连标成昊远桂心远张培奇大连理工大学辽宁省微纳米技术及系统重点实验室辽宁大连116024

研究了由天空光主导的波浪水面下的偏振分布模式,验证了在波浪水面下使用偏振导航的可行性,讨论了不同太阳位置和水面波浪情况对水下偏振分布模式的影响。利用CoxMunk海浪模型描述波浪水面,建立了考虑大气Rayleigh散射、气-水界面折射... 详细信息

研究了由天空光主导的波浪水面下的偏振分布模式,验证了在波浪水面下使用偏振导航的可行性,讨论了不同太阳位置和水面波浪情况对水下偏振分布模式的影响。利用CoxMunk海浪模型描述波浪水面,建立了考虑大气Rayleigh散射、气-水界面折射及水分子单次Rayleigh散射的基于Stokes矢量和Mueller矩阵的水下偏振传输模型。仿真结果与实测结果的一致性证明了所提模型的正确性。结果表明,由天空光主导的波浪水面下偏振分布模式是可以预测的,这主要与太阳位置和水面波浪情况有关。所提模型可以更准确地分析波浪水面下偏振特性。为水下偏振导航的应用提供了理论依据。

关键词：海洋光学偏振散射波浪

倾斜摄影测量与SketchUp二次开发技术相结合的建筑三维重建

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测绘通报 2017年第5期 71-74页

作者：詹总谦李一挥桂鑫源武汉大学测绘学院湖北武汉430079

结合SketchUp建模灵活、简单易学及摄影测量精度高的优势,利用SketchUp Ruby二次开发技术,对倾斜摄影测量单像建模、摄影测量模块与SketchUp Ruby脚本插件的通信、建模效果等方面进行深入研究,解决了用C++和Ruby联合开发SketchUp三维建... 详细信息

结合SketchUp建模灵活、简单易学及摄影测量精度高的优势,利用SketchUp Ruby二次开发技术,对倾斜摄影测量单像建模、摄影测量模块与SketchUp Ruby脚本插件的通信、建模效果等方面进行深入研究,解决了用C++和Ruby联合开发SketchUp三维建模插件的关键技术问题。

关键词： SketchUp Ruby二次开发倾斜摄影测量建筑物重建单像建模

基于神经网络和偏振成像的多浑浊度水下图像恢复

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激光与光电子学进展 2022年第4期59卷 54-60页

作者：桂心远张然成昊远田连标褚金奎大连理工大学机械工程学院辽宁省微/纳米技术与系统重点实验室辽宁大连116024

水下成像是海洋探索最常用的方法之一,越来越多的研究表明偏振是某些水下生物在低光照下拥有视觉的关键。提出了一种基于深度学习和偏振成像的多浑浊度水下图像恢复方法。通过拍摄清水和不同浑浊度的水下偏振图像获得多浑浊度水下偏振... 详细信息

水下成像是海洋探索最常用的方法之一,越来越多的研究表明偏振是某些水下生物在低光照下拥有视觉的关键。提出了一种基于深度学习和偏振成像的多浑浊度水下图像恢复方法。通过拍摄清水和不同浑浊度的水下偏振图像获得多浑浊度水下偏振数据集。提出小尺寸神经网络,让网络更好地学习到不同浑浊度水下偏振信息到清晰水下图像的映射关系,并针对不同场景需求提出不同步长的滑动窗口叠加方法。结果表明,所提出的偏振方法能有效恢复水下图像,在不同浑浊度下恢复的峰值信噪比相比原图平均提高47.39%。该方法将深度学习与偏振成像技术相结合,能够在多浑浊度环境下恢复水下图像,克服了利用普通图像得到的水下图像恢复效果差的问题。

关键词：图像处理水下图像恢复神经网络偏振成像计算机视觉

Real-Time Position and Attitude Estimation for Homing and Docking of an Autonomous Underwater Vehicle Based on Bionic Polarized Optical guidance

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Journal of Ocean University of China 2020年第5期

作者： CHENG Haoyuan CHU Jinkui ZHANG Ran gui xinyuan TIAN Lianbiao

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EPC管理经验浅谈

施工技术 2018年第A04期47卷 1070-1072页

作者：胡志远王永锋桂欣远郭连山中国建筑第五工程局有限公司湖南长沙410004

当前的经济社会不断发展,我国的经济也在不断的向前发展,随之而来的是信息社会的进步,面对各方面的迅速发展,我国的建设工程项目管理水平也在迅速赶超世界其他发达国家和发展中国家,EPC工程总承包管理模式越来越受到青睐,且该模式具有... 详细信息

当前的经济社会不断发展,我国的经济也在不断的向前发展,随之而来的是信息社会的进步,面对各方面的迅速发展,我国的建设工程项目管理水平也在迅速赶超世界其他发达国家和发展中国家,EPC工程总承包管理模式越来越受到青睐,且该模式具有极大的可持续发展前景。经过分析,对于加速传统施工总承包企业转型,提高EPC项目全过程管理能力找到了一些路径,能够为相关企业提供一些参考。

关键词： EPC 系统提升全过程管理能力

Temperature dependent conductivity of Bi_4Ti_3O_(12) ceramics induced by Sr dopants

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Journal of Advanced Ceramics 2018年第3期7卷 256-265页

作者： Lin WANG Mengqi gui Hai-Bo JIN xinyuan HU Yongjie ZHAO Naseer Muhammad ADNAN Jing-Bo LI Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and EngineeringBeijing Institute of Technology

Bi_4Ti_3O_(12) is an important lead-free ferroelectric *** modification of Bi_4Ti_3O_(12)has attracted great attention to improving its *** this work,the effect of Sr dopants on the microstructure,dielectric,and conductivity of Bi_4Ti_3O_(12) ceramic was investigated by XRD,SEM,and AC impedance *** of 1 at%Sr for Bi decreased the grain size,suppressed the dielectric dispersion of Bi_4Ti_3O_(12) ceramic at room temperature,and resulted in different effects on the conductivity of grains and grain *** conductivity of grains in Bi_4Ti_3O_(12) ceramic was increased by the small amount of Sr dopants in the whole experimental temperature *** the grain boundaries of 1 at%Sr-doped Bi_4Ti_3O_(12) exhibited lower conductivity than pure Bi_4Ti_3O_(12) below～380℃and higher conductivity above～380℃.The experimental phenomena were interpreted in term of compensating defects for Sr dopants.

关键词： dielectric impedance analysis electrical properties defects Aurivillius compound

MsCGAN:Multi-scale Conditional Generative Adversarial Networks for Person Image Generation

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MsCGAN:Multi-scale Conditional Generative Adversarial Networ...

RNA 5-methylcytosine regulates YBX2-dependent liquid-liquid phase separation

第32届中国控制与决策会议

作者： Wei Tang gui Li xinyuan Bao Fudong Nian Teng Li Anhui University Hefei University

To synthesize high-quality person images with arbitrary poses is *** this paper,we propose a novel Multi-scale Conditional Generative Adversarial Networks（MsCGAN）,aiming to convert the input conditional person image to a synthetic image of any given target pose,whose appearance and the texture are consistent with the input *** is a multi-scale adversarial network consisting of two generators and two *** generator transforms the conditional person image into a coarse image of the target pose globally,and the other is to enhance the detailed quality of the synthetic person image through a local reinforcement *** outputs of the two generators are then merged into a synthetic,discriminant and high-resolution *** the other hand,the synthetic image is downsampled to multiple resolutions as the input to multi-scale discriminator *** proposed multi-scale generators and discriminators handling different levels of visual features can benefit to synthesizing high-resolution person images with realistic appearance and *** are conducted on the Market-1501 and DeepFashion datasets to evaluate the proposed model,and both qualitative and quantitative results demonstrate the superior performance of the proposed MsCGAN.

关键词： person image generation multi-scale discriminators generative adversarial networks image synthesis

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Fundamental Research 2022年第1期2卷 48-55页

作者： Xiuzhi Wang Mengke Wang xinyuan Dai Xiao Han Yu Zhou Weiyi Lai Liyuan Zhang Ying Yang Yusheng Chen Hailin Wang Yong Liang Zhao Bin Shen Yuhan Zhang Ying Huang Yun-gui Yang Key Laboratory of Genomic and Precisin Medicine Cllaborative lnovation Center of Genetics and DevelopmentCllge of Fure TechnologyBejing Istute of GenomicsChinese Acadery of SciencesBeijing 100101China Department of General Surgery Shanghal Key Laboratory of Biliary Tract Disease ResearchState Key Laboratory of Oncogenes and Related GenesXinhua HospitalShanghai Jiao Tong UnivesityShanghai 200092China State Key Laboratory of Reproductive Medicine Nanjing Medical UniversilyNanjing 21166China China National Center for Biolnformation Beljing 100101China University of Chinese Academy of Sciences Beijing 100049China Sino-Danish College University of Chinese Acadeny of SciencesBeijing 100049China Istute of Stem Cell and Regeneration Chinese Acadery of SciencesBeijing 100101China Research Center for Ec-Environmental Sciences Chinese Academy of SciencesBeijing 100085China

5-Methylcytosine(m^(5)C)is one of the most prevalent internal modifications of messenger RNA(mRNA)in higher *** we report that Y box protein 2(YBX2)serves as a novel mammalian m^(5)C binding protein to undergo liquid-liquid phase separation(LLPS)both in vivo and in vitro,and this YBX2-dependent LLPS is enhanced by m^(5)C marked ***,the crystal structure assay revealed that W100,as a distinct m^(5)C binding site of YBX2,is critical in mediating YBX2 phase *** study resolved the relationship between RNA m^(5)C and phase separation,providing a clue for a new regulatory layer of epigenetics.

关键词： RNA modification RNA m^(5)C YBX2 Phase separation Liquid droplet

年长员工主观年龄对利他行为的影响:控制感的中介作用和组织支持的调节作用

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中国人力资源开发 2023年第6期40卷 90-104页

作者：杨焕赵新元黄桂崔珍珍中山大学管理学院广州510275 澳门科技大学博雅学院中国澳门999078 广州开放大学社会培训学院广州510091

随着我国社会人口日益老龄化,企业如何有效管理和开发年长员工成为人力资源开发学者和管理人员广泛关注的问题。然而,年龄刻板印象使得部分管理人员忽视了个人生理实际年龄与心理主观感受的差异,从而无法充分发挥年长员工在丰富工作经... 详细信息

随着我国社会人口日益老龄化,企业如何有效管理和开发年长员工成为人力资源开发学者和管理人员广泛关注的问题。然而,年龄刻板印象使得部分管理人员忽视了个人生理实际年龄与心理主观感受的差异,从而无法充分发挥年长员工在丰富工作经验、知识诀窍(know how)积累、社会网络资本深厚、适应组织文化等多方面优势。与生理年龄相比,主观年龄反映了个人对年龄的心理感知,更能解释年长员工态度和行为的内源性成因。本研究基于资源保存理论,探讨了主观年龄对年长员工利他行为的作用机制。对三阶段问卷调查数据分析的结果表明,主观年龄年轻化通过控制感,增加年长员工利他行为。组织支持具有显著的调节作用:在高水平组织支持下,主观年龄更年轻的年长员工对生活和工作的控制力越强,利他行为越多。研究结果拓展了主观年龄对年长员工影响机制的前沿研究,对人力资源管理者如何有效开发年长员工资源、实现成功老龄化提供了建议,以期起到抛砖引玉的作用。

关键词：主观年龄控制感利他行为组织支持