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路面雷达在沥青路面密度和压实度检测中的试验研究

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中南公路工程 2006年第4期31卷 96-98,101页

作者：王子彬蔡迎春郭成超郑州大学环境与水利学院河南郑州450002

提高沥青路面的压实程度是控制其工程质量重要措施之一。利用混合料的介电常数与其组成的固体、液态、气态三相体的介电常数的均方根和体积比的关系,通过常规的室内试验,得到介电常数与沥青路面密度、压实度之间的关系。利用该关系,可... 详细信息

提高沥青路面的压实程度是控制其工程质量重要措施之一。利用混合料的介电常数与其组成的固体、液态、气态三相体的介电常数的均方根和体积比的关系,通过常规的室内试验,得到介电常数与沥青路面密度、压实度之间的关系。利用该关系,可用路面雷达快速、实时地检测沥青路面的密实程度,从而实现对沥青路面的施工过程进行控制。

关键词：路面雷达介电常数密度压实度

A differential-imaging polarimeterforhigh-contrast exoplanet imaging

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光电工程 2017年第11期44卷 1045-1051页

作者： Deqing Ren Chao Yang Jing guo chengchao Liu Physics & Astronomy Department California State University Northridge Northridge 91330 USA National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology Chinese Academy of Sciences Nanjing 210042 China Key Laboratory of Astronomical Optics & Technology NanJing Institute of Astronomical Optics & Technology Chinese Acad-emy of Sciences NanJing 210042 China University of Chinese Academy of Sciences Beijing 100049 China

Starlight is generally unpolarized,but the light reflected from the planet is linearly polarized as the result of the Rayleigh *** ground-based exoplanet imaging,atmospheres turbulence is changing from time to time,which induces speckle noise and hampers the high-contrast imaging of the faint *** this paper,we propose a differential-imaging polarimeter dedicated for exoplanet high-contrast *** system contains a zero-order half-wave plate(HWP)located on the optical pupil plane,which can rotate to modulate the incoming light,and a Wollaston prism(WP)is used to generate two polarized images,which is used for simultaneously polarization differential imaging and thus our system is fundamentally immune to the atmospheric turbulence induced temporally-variable wavefront *** polarimeter can be inserted near the telescope image focal plane,and provide an extra contrast for the exoplanet high-contrast *** achieve best differential-imaging performance,dedicated algorithm is developed,which can effectively correct the distortion and the intensity unbalance between the two differential *** system successfully achieves an extra contrast of^30~50 times,which can be used with current adaptive optics and coronagraph system for directly imaging of giant Jupiter-like exoplanets.

关键词：《光电工程》英文摘要期刊编辑工作

非对称荷载作用下装配式可回收支护开挖数值分析

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沈阳建筑大学学报（自然科学版） 2020年第2期36卷 263-272页

作者：郭成超叶思聪曹鼎峰叶钧陶中山大学土木工程学院广东广州510275 广东省地下空间开发工程技术研究中心广东广州510275 广东省海洋土木工程重点实验室广东广州510275

目的研究在非对称荷载作用下装配式可回收支护结构基坑在开挖过程中支护结构的受力变形特性.方法依托郑州市某顶管工程,运用有限元软件ABAQUS模拟非对称荷载条件下装配式可回收支护基坑开挖全过程,分析支护结构的水平位移及受力.结果基... 详细信息

目的研究在非对称荷载作用下装配式可回收支护结构基坑在开挖过程中支护结构的受力变形特性.方法依托郑州市某顶管工程,运用有限元软件ABAQUS模拟非对称荷载条件下装配式可回收支护基坑开挖全过程,分析支护结构的水平位移及受力.结果基坑开挖完成后,非对称荷载侧桩体水平位移及弯矩均不一致,荷载较大侧桩顶位移和桩体上部弯矩更大.随着较大侧荷载的增加,同侧桩体上部的坑内位移量及弯矩值相应增大,冠梁和第1层腰梁在非对称荷载两侧的轴力分布及大小有明显差别.结论荷载较大侧的支护结构变形较大,受力情况复杂,施工时应重视并密切监测.

关键词：非对称荷载装配式可回收支护基坑开挖数值模拟

A highly efficient protein corona-based proteomic analysis strategy for the discovery of pharmacodynamic biomarkers

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Journal of Pharmaceutical Analysis 2022年第6期12卷 879-888页

作者： Yuqing Meng Jiayun Chen Yanqing Liu Yongping Zhu Yin-Kwan Wong Haining Lyu Qiaoli Shi Fei Xia Liwei Gu Xinwei Zhang Peng Gao Huan Tang Qiuyan guo Chong Qiu chengchao Xu Xiao He Junzhe Zhang Jigang Wang Artemisinin Research Center and Institute of Chinese Materia Medica China Academy of Chinese Medical SciencesBeijing100700China Department of Biological Sciences National University of Singapore117543Singapore Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy PhysicsChinese Academy of SciencesBeijing100049China

The composition of serum is extremely complex,which complicates the discovery of new pharmacodynamic biomarkers via serum proteome for disease prediction and ***,nanoparticles have been reported to efficiently reduce the proportion of high-abundance proteins and enrich lowabundance proteins in ***,we synthesized a silica-coated iron oxide nanoparticle and developed a highly efficient and reproducible protein corona(PC)-based proteomic analysis strategy to improve the range of serum proteomic *** identified 1,070 proteins with a median coefficient of variation of 12.56%using PC-based proteomic analysis,which was twice the number of proteins identified by direct *** were also more biological processes enriched with these *** applied this strategy to identify more pharmacodynamic biomarkers on collagen-induced arthritis(CIA)rat model treated with methotrexate(MTX).The bioinformatic results indicated that 485 differentially expressed proteins(DEPs)were found in CIA rats,of which 323 DEPs recovered to near normal levels after treatment with *** strategy can not only help enhance our understanding of the mechanisms of disease and drug action through serum proteomics studies,but also provide more pharmacodynamic biomarkers for disease prediction,diagnosis,and treatment.

关键词： Protein corona Nanoparticles Mass spectrometry Proteomic analysis Pharmacodynamic biomarkers

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考虑移动目标不确定行为方式的轨迹预测方法

宇航学报 2022年第8期43卷 1040-1051页

作者：颜鹏郭继峰白成超哈尔滨工业大学航天学院哈尔滨150001

针对现有方法难以预测出符合飞行移动目标不确定行为方式轨迹的问题,提出基于逆强化学习的飞行移动目标轨迹预测方法,通过学习目标行为偏好以及模拟目标行为决策过程的方式预测目标的移动轨迹。首先基于深度神经网络建立目标的行为决策... 详细信息

针对现有方法难以预测出符合飞行移动目标不确定行为方式轨迹的问题,提出基于逆强化学习的飞行移动目标轨迹预测方法,通过学习目标行为偏好以及模拟目标行为决策过程的方式预测目标的移动轨迹。首先基于深度神经网络建立目标的行为决策模型与行为偏好模型,然后通过最大熵逆强化学习方法交替地学习模型参数。为了有效地学习目标的不确定行为特征,采用监督学习的方法学习出目标示例轨迹概率分布模型,用于指导目标行为偏好模型的训练以及初始化目标行为决策模型,同时通过对目标行为偏好模型进行预训练的方式提高其训练质量。仿真结果表明,提出的飞行移动目标轨迹预测方法可通过学习到的目标行为决策模型较为准确地模拟目标的行为方式,预测的目标轨迹分布与真实的目标轨迹分布在Kullback-Leibler(KL)散度下的相似度可达0.24。

关键词：轨迹预测飞行移动目标不确定行为方式逆强化学习深度神经网络

Isolation of a strong matrix attachment region (MAR) and identification of its function in vitro and in vivo

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Chinese Science Bulletin 2002年第23期47卷 1999-2005页

作者： Kewei Zhang Jianmei Wang guodong Yang Xingqi guo Fujiang Wen Decai Cui chengchao Zheng Shandong Agr Univ Coll Life Sci Tai An 271018 Peoples R China

Inclusion of MARs in transgene cassettes enhances their expression and reduces position-effect variations in the transgenic host. Four new MARs (TM2, TM3, AM1 and AM2) were isolated from tobacco and Arabidopsis by PCR method. The nuclei isolated from suspension-cultured cells of rice were used to prepare nuclear matrix. With a characterized MAR (TM1) as a positive control, the Matrix-MAR interactions were tested by an in vitro binding assay to identify the DNA sequences as MARs and their binding strength to nuclear matrix in vitro was compared. The results showed that TM2 and TM3 had stronger binding strength than TM1. To determine the functions of the four new MARs in vivo, binary vectors pBI121 carrying a uidA GUS reporter gene were modified with direct repeat MARs inserted on both sides of the reporter gene cassette and were transferred into tobaccos via Agrobacterium-mediated transformation procedure. Quantitative GUS assays of the transgenic tobaccos showed that when flanking a GUS reporter gene

关键词： MAR isolation nuclear matrix in vitro binding assay β-glucuronidase foreign gene expression high efficient expression vector construction.

Function identification of Md TIR1 in apple root growth benefited from the predicted Md PPI network

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Journal of Integrative Plant Biology 2021年第4期63卷 723-736页

作者： Lin Liu Zipeng Yu Yang Xu Cheng guo Lei Zhang Changai Wu guodong Yang Jinguang Huang Kang Yan Huairui Shu chengchao Zheng Shizhong Zhang State Key Laboratory of Crop Biology Shandong Agricultural UniversityTaiʼan 271018China Shandong Peanut Research Institute Shandong Academy of Agricultural SciencesQingdao 266100China

Protein–protein interaction(PPI)network analysis is an effective method to identify key proteins during plant development,especially in species for which basic molecular research is lacking,such as apple(Malus domestica).Here,an MdPPI network containing 30806 PPIs was inferred in apple and its quality and reliability were rigorously ***,a rootgrowth subnetwork was extracted to screen for critical proteins in root *** hormone-related proteins occupied the largest proportion of critical proteins,a hormonerelated sub-subnetwork was further extracted from the root-growth *** these proteins,auxin-related *** TRANSPORT INHIBITOR RESISTANT 1(MdTIR1)served as the central,high-degree node,implying that this protein exerts essential roles in root ***,transgenic apple roots overexpressing an MdTIR1 transgene displayed increased primary root *** analysis showed that MdTIR1 significantly upregulated auxin-responsive genes in apple roots,indicating that it mediates root growth in an auxin-dependent *** experimental validation revealed that MdTIR1 interacted with and accelerated the degradation of MdIAA28,MdIAA43,***,MdTIR1-mediated degradation of MdIAAs is critical in auxin signal transduction and root growth regulation in ***,our network analysis and high-degree node screening provide a novel research technique for more generally characterizing molecular mechanisms.

关键词： Apple auxin hormone Md TIR1 PPI network root growth

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高速飞行器集群通信拓扑自适应控制方法

宇航学报 2023年第7期44卷 1008-1019页

作者：白成超王会霞郭继峰路坤锋哈尔滨工业大学航天学院哈尔滨150001 北京航天自动控制研究所北京100854 宇航智能控制技术国家级重点实验室北京100854

针对基于传统通信机制的高速飞行器集群控制策略鲁棒性低、所需通信量大的问题,提出一种基于深度强化学习框架的可自主调节通信数量的集群控制方法。其中,使用深度神经网络构建控制策略与通信策略耦合的集群控制策略,其输出包含控制飞... 详细信息

针对基于传统通信机制的高速飞行器集群控制策略鲁棒性低、所需通信量大的问题,提出一种基于深度强化学习框架的可自主调节通信数量的集群控制方法。其中,使用深度神经网络构建控制策略与通信策略耦合的集群控制策略,其输出包含控制飞行器运动的过载指令以及与邻近飞行器的通信数量。通过与任务环境的不断交互,训练出的集群控制策略能根据环境信息自主调整通信拓扑结构,保证集群控制的鲁棒性和较低的通信量。仿真结果表明,相比于集中式,分层式和分布式通信机制,所提的自适应通信机制可在较低的集群通信量下安全快速地控制飞行器集群到达目标点并且较好地保持编队队形。

关键词：高速飞行器通信拓扑集群控制深度强化学习自适应通信机制

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高聚物防渗墙在交通荷载作用下的应变特征

水利水运工程学报 2020年第4期 103-110页

作者：郭成超杨建超石明生关欢蔡兵华李忠超中山大学土木工程学院广东广州510275 郑州大学水利科学与工程学院河南郑州450001 武陟裕泰房地产开发有限公司河南武陟454950 西南交通大学土木工程学院四川成都610031 武汉市市政建设集团有限公司湖北武汉430023

高聚物防渗墙是针对土质堤坝防渗加固的新型防渗技术,在实际工程中应用越来越广泛,但其在交通荷载作用下的应变特征却少有研究。以堤坝模型试验为基础,建立堤坝高聚物防渗墙三维有限元模型,分析了交通荷载(大车正载、大车偏载、动态冲... 详细信息

高聚物防渗墙是针对土质堤坝防渗加固的新型防渗技术,在实际工程中应用越来越广泛,但其在交通荷载作用下的应变特征却少有研究。以堤坝模型试验为基础,建立堤坝高聚物防渗墙三维有限元模型,分析了交通荷载(大车正载、大车偏载、动态冲击荷载)作用下防渗墙的横向应变以及竖向应变,并且通过与现场模型试验结果对比,验证了数值模型的合理性。研究揭示了高聚物防渗墙的应变随深度呈现先快速增大至峰值后减小至稳定状态的三段式变化规律;得到了在相同位置作用不同冲击荷载和防渗墙在不同位置作用相同冲击荷载时的应变变化曲线;发现了高聚物防渗墙表现出一定的柔性特征,有利于防渗墙防渗功能的发挥。

关键词：高聚物防渗墙堤坝交通荷载数值模拟现场模型试验应变特征