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Carbon dots and polyurethane composite for photo-induced elimination of uranium under air atmosphere

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Chinese Chemical Letters 2023年第9期34卷 340-343页

作者： Zhe Wang Lingyu Zhang Zhen Lei Liyuan Zheng liqin huang Shuang Liu Yuexiang Lu The MOE Key Laboratory of Resources and Environmental System Optimization College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijing 102206China Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China Nuclear Research Institute for Future Technology and Policy Seoul National UniversitySeoul 08826Republic of Korea

Uranium is the main fuel of nuclear power and elimination uranium from nuclear wastewater is significant both in environmental protection and fuel *** we report for the first time the synthesis of carbon dots/polyurethane(CDs/PU)composite materials for the photoinduced elimination of uranium from *** with visible light,CDs/PU could eliminate uranium efficiently with the generation of(UO_(2))O_(2)·_(2)H_(2)O as solid products in *** further investigated mechanism showed that the addition of CDs/PU could produce more H_(2)O_(2)under visible light,which reacted with uranyl ions to form(UO_(2))O_(2)·_(2)H_(2)***,the sponge-like CDs/PU could be easily removed from water with high reusability as the elimination efficiency remained above 95%after 5 ***/PU also displayed good selectivity in the presence of other metal *** work affords exciting strategies for developing photocatalysts and eliminating uranium from water.

关键词： Carbon dots Polyurethane Uranium Photocatalyst Air atmosphere

SeRN:A Two-Stage Framework of Registration for Semi-Supervised Learning for Medical Images

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Journal of Shanghai Jiaotong university(Science) 2022年第2期27卷 176-189页

作者： Jia Dengqiang Luo Xinzhe Ding Wangbin huang liqin Zhuang Xiahai School of Naval Architecture Ocean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China School of Data Science Fudan UniversityShanghai200433China College of Physics and Information Engineering Fuzhou UniversityFuzhou350117China

Significant breakthroughs in medical image registration have been achieved using deep neural networks(DNNs).However,DNN-based end-to-end registration methods often require large quantities of data or adequate annotations for *** leverage the intensity information of abundant unlabeled images,unsupervised registration methods commonly employ intensity-based similarity measures to optimize the network ***,finding a sufficiently robust measure can be challenging for specific registration *** supervised registration methods use anatomical labels to estimate the deformation between ***-level structural information in label images is more reliable and practical for estimating the voxel correspondence of anatomic regions of interest between images,whereas label images are extremely difficult to *** this paper,we propose a two-stage semi-supervised learning framework for medical image registration,which consists of unsupervised and weakly supervised registration *** proposed semi-supervised learning framework is trained with intensity information from available images,label information from a relatively small number of labeled images and pseudo-label information from unlabeled *** results on two datasets(cardiac and abdominal images)demonstrate the efficacy and efficiency of this method in intra-and inter-modality medical image registrations,as well as its superior performance when a vast amount of unlabeled data and a small set of annotations are *** code is publicly available at at https://***/jdq818/SeRN.

关键词： medical image registration semi-supervised learning intra-modality inter-modality

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输血传播的戊型肝炎

中国输血杂志 2025年第1期38卷 38-42,53页

作者：李柏勋刘天旭黄力勤党英男王麟北京大学基础医学院病原生物学系暨感染病研究中心北京100191 深圳市血液中心广东深圳518035 青海省血液中心青海西宁810000

戊型肝炎是由戊型肝炎病毒(hepatitis E virus,HEV)引起的急性病毒性肝炎,是1种自限性疾病,免疫抑制的患者和孕妇感染HEV后病死率较高。虽然在世界范围内,人类多由被HEV污染的水或食物感染,但输血传播的戊型肝炎病例在持续增加。我国献... 详细信息

戊型肝炎是由戊型肝炎病毒(hepatitis E virus,HEV)引起的急性病毒性肝炎,是1种自限性疾病,免疫抑制的患者和孕妇感染HEV后病死率较高。虽然在世界范围内,人类多由被HEV污染的水或食物感染,但输血传播的戊型肝炎病例在持续增加。我国献血人群的血清抗-HEV IgG的流行率处于较高的水平,对献血者进行HEV风险评估制定筛查策略是控制戊肝传播的重要手段。本文简要综述了全球报告的输血传播戊型肝炎病例和血液筛查HEV策略。

关键词：戊型肝炎戊型肝炎病毒输血传播戊型肝炎

Carbon dots and carbon nitride composite for photocatalytic removal of uranium under air atmosphere

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Chinese Chemical Letters 2022年第7期33卷 3573-3576页

作者： Hongpeng Li Qi Qing Liyuan Zheng Lan Xie Zhiqiang Gan liqin huang Shuang Liu Zhe Wang Yuexiang Lu Jing Chen Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China The MOE Key Laboratory of Resources and Environmental System Optimization College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijing 102206China

Photocatalytic removal of uranium has attracted much attention in nuclear wastewater treatment and it is highly needed to develop functional photocatalyst with excellent removal *** this work,seven kinds of carbon dots/carbon nitride(CDs/CN)composites were synthesized and Ser CDs/CN with the best photo-assisted uranium removal performance was screened *** was found that the introduction of CDs could bring in higher photocurrent density,lower interfacial charge transfer impedance and narrower band gap,resulting in a much-improved removal ***/CN had shown a removal capacity as high as 1690 mg/g and the reaction could be operated under air atmosphere which is promising in real application.

关键词： Carbon dots Carbon nitride Uranium Photocatalyst Air atmosphere

Judgment of Parameters Correlation——Comprehensive Method

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Journal of Donghua University(English Edition) 2018年第2期35卷 177-181页

作者： huang liqin GU ZHAO Xinwen CAI Qi SHEN Mengsi School of Material Science and Engineering Nanchang Hangkong University Nanchang 330063 China Department of Nuclear Energy Science and Engineering Naval University of Engineering Wuhan 430033 China

Researching parameters correlation is important to analysis of reliability uncertainty for passive system. The only criterion for traditional method to determine the parameters correlation is the correlation coefficient threshold. This method is subjective and needs improvement. Taking loss of normal feedwater accident of AP1000 passive residual heat removal system( PRHRS)as example,a comprehensive method was proposed to resolve the subjectivity problem of traditional method. Comprehensive method took account of scatter diagram of parameters and thermal transmission rule and significance testing of correlation coefficient comprehensively when judging parameters correlation. By comparing the effect of parameters judged by traditional and comprehensive methods respectively, we found the distance of traditional method was larger than that of comprehensive method,showing some parameters impacting thermal transmission rule removed by traditional method and comprehensive method could judge more precise and scientific parameters. So comprehensive method should be used to judge linear relation between parameters and thermal transmission rule.

关键词： correlation coefficient significance testing comprehensivemethod thermal transmission rule passive residual heat removal system(PRHRS)

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全方向M型心动图系统精确检测研究

仪器仪表学报 2009年第5期30卷 1105-1109页

作者：黄立勤林强福州大学物理与信息工程学院福州350002

本文提出了一种全方向M型心动图系统精确检测分析的设计方案,对系统中采集数据所用的方向线与心脏变形体同步跟踪的原理进行详细分析并研究了具体的实施步骤,通过该设计方案可以更加准确地定量检测分析心脏各结构的舒、缩、形变过程及... 详细信息

本文提出了一种全方向M型心动图系统精确检测分析的设计方案,对系统中采集数据所用的方向线与心脏变形体同步跟踪的原理进行详细分析并研究了具体的实施步骤,通过该设计方案可以更加准确地定量检测分析心脏各结构的舒、缩、形变过程及其数据。本方案设计提出了心脏变形体跟踪的四维参数模型,设计了一种改进的遗传算法对其进行分析研究。该设计实现了对国家发明专利"全方向M型心动图方法及其系统98125713.5"系统的优化设计。

关键词：全方向M型心动图精确检测遗传算法

基于DICOM标准全方向M型心动图的软件系统设计

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仪器仪表学报 2008年第1期29卷 94-98页

作者：黄立勤林强福州大学物理与信息工程学院福州350002

本文介绍了基于DICOM标准全方向M型心动图软件系统的设计方案,详细分析了系统结构及各个模块功能。通过该系统可以直接准确地定量检测分析心脏各结构的舒、缩、形变过程及其数据,同时可以生成多个任意方向且互相同步的M型心动图。各个... 详细信息

本文介绍了基于DICOM标准全方向M型心动图软件系统的设计方案,详细分析了系统结构及各个模块功能。通过该系统可以直接准确地定量检测分析心脏各结构的舒、缩、形变过程及其数据,同时可以生成多个任意方向且互相同步的M型心动图。各个模块设计完全遵循DICOM标准,同时结合数据库管理,方便查询索引。该系统分析的影像数据可以来自PACS服务器,也可以来自本地系统,分析结果数据可以回传PACS服务器,也可以保存本地。该系统实现了国家发明专利"全方向M型心动图方法及其系统98 125713.5"系统数据和国际医学图像传递标准的接口。

关键词：全方向M型心动图 DICOM PACS

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车载视频下改进的核相关滤波跟踪算法

电子与信息学报 2018年第8期40卷 1887-1894页

作者：黄立勤朱飘福州大学物理与信息工程学院福州350116

针对相关滤波跟踪算法在车载视频下由于环境复杂及目标尺度变化等情况下容易跟踪失败的问题,该文提出一种基于背景信息的尺度自适应相关滤波跟踪算法。首先利用背景感知相关滤波跟踪器融合方向梯度直方图特征预测目标下一帧位置,然后根... 详细信息

针对相关滤波跟踪算法在车载视频下由于环境复杂及目标尺度变化等情况下容易跟踪失败的问题,该文提出一种基于背景信息的尺度自适应相关滤波跟踪算法。首先利用背景感知相关滤波跟踪器融合方向梯度直方图特征预测目标下一帧位置,然后根据预测位置选取图像块进行检测,最后结合动态尺度比例金字塔模型对目标进行尺度估计。实验选取了KITTI数据库中23段车载视频和标注国内的4段车载视频进行测试,实验结果表明,该算法能有效降低车载环境的复杂背景、目标尺度变化等因素干扰,整体性能优于KCF,DSST,SAMF,SATPLE等主流相关滤波算法,对车载环境下复杂背景和尺度变化的目标跟踪具有鲁棒性。

关键词：目标跟踪核相关滤波车载视频背景感知尺度估计

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我国刑法数罪并罚规定的不足及完善

同济大学学报（社会科学版） 2022年第6期33卷 105-114页

作者：黄丽勤同济大学法学院上海200092

我国刑法数罪并罚的规定存在不足之处,包括:未规定同种主刑的并罚原则;未规定死刑和无期徒刑的并罚;未规定同种附加刑合并处罚的原则;规定对有期徒刑和拘役的并罚只执行有期徒刑可能导致以轻刑吸收重刑、导致以拘役的执行为前提的制度... 详细信息

我国刑法数罪并罚的规定存在不足之处,包括:未规定同种主刑的并罚原则;未规定死刑和无期徒刑的并罚;未规定同种附加刑合并处罚的原则;规定对有期徒刑和拘役的并罚只执行有期徒刑可能导致以轻刑吸收重刑、导致以拘役的执行为前提的制度无法适用;规定对异种附加刑应分别执行可能难以适用;等等。针对上述不足,应当对刑法规定进行修改,包括:明确规定同种主刑、同种附加刑的并罚原则;明文规定死刑和无期徒刑的并罚;明文规定将拘役等量折算成有期徒刑再与有期徒刑并罚;等等。

关键词：数罪并罚主刑附加刑有期徒刑拘役