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脂肪组织重置或移植修复重睑术后上睑凹陷畸形的效果

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中华医学美学美容杂志 2024年第3期30卷 247-250页

作者：阎昱丞杨明勇中国医学科学院北京协和医学院整形外科医院综合整形科北京100144

目的探讨重睑术后用脂肪组织重置或移植修复上睑凹陷复杂畸形的效果。方法2020年1月至2022年1月,中国医学科学院整形外科医院综合整形科修复重睑术后上睑凹陷畸形女性患者40例(76处),年龄19~49岁,平均34岁。重睑术后上睑内部存在广泛粘... 详细信息

目的探讨重睑术后用脂肪组织重置或移植修复上睑凹陷复杂畸形的效果。方法2020年1月至2022年1月,中国医学科学院整形外科医院综合整形科修复重睑术后上睑凹陷畸形女性患者40例(76处),年龄19~49岁,平均34岁。重睑术后上睑内部存在广泛粘连的上睑凹陷复杂畸形,松解粘连后合理使用眶隔脂肪重置技术以及游离脂肪团块或真皮脂肪团块移植技术,观察治疗效果。结果40例患者术后即刻上睑凹陷均得到矫正,无短期并发症。对患者进行4~28个月随访,医师评估75处(98.7%)手术取得较好效果,患者满意68处(88.2%)。结论脂肪组织重置或移植能够恢复上睑解剖结构及运动功能,同时补充上睑容量、改善外观,是重睑术后凹陷畸形修复的较好方法。

关键词：修复外科手术重睑术后修复上睑凹陷眶隔脂肪重置脂肪移植真皮脂肪移植

A Genetic-Algorithm-based Neural Network Approach for Radioactive Activity Prediction

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Nuclear Science and Techniques 2013年第6期24卷 12-16页

作者： WANG Lei TUO Xianguo yan yucheng LIU Mingzhe CHENG Yi LI Pingchuan State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Southwest University of Science and Technology

In this paper,a genetic-algorithm-based artificial neural network(GAANN)model radioactivity prediction is proposed,which is verified by measuring results from Long Range Alpha Detector(LRAD).GAANN can integrate capabilities of approximation of Artificial Neural Networks(ANN)and of global optimization of Genetic Algorithms(GA)so that the hybrid model can enhance capability of generalization and prediction accuracy,*** this model,both the number of hidden nodes and connection weights matrix in ANN are optimized using genetic *** real data sets are applied to the introduced method and the results are discussed and compared with the traditional Back Propagation(BP)neural network,showing the feasibility and validity of the proposed approach.

关键词：神经网络方法遗传算法模型预测放射性人工神经网络活性逼近能力全局优化

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微靶型X射线管不同靶材出射光斑对比研究

核技术 2020年第10期43卷 29-33页

作者：左卓何兴张松颜瑜成覃骏成都理工大学工程技术学院乐山614000 核工业西南物理研究院成都610225

针对半球、锥体、圆柱三种微形结构靶X射线管,利用蒙特卡罗(Monte Carlo)方法模拟研究不同靶材料对微靶型X射线管出射光斑的影响,讨论不同靶材料和微靶结构对透射式微靶型X射线管的出射光斑尺寸的影响。结果表明:在电子入射能量为100 ke... 详细信息

针对半球、锥体、圆柱三种微形结构靶X射线管,利用蒙特卡罗(Monte Carlo)方法模拟研究不同靶材料对微靶型X射线管出射光斑的影响,讨论不同靶材料和微靶结构对透射式微靶型X射线管的出射光斑尺寸的影响。结果表明:在电子入射能量为100 keV时,微锥形结构靶的光斑尺寸最小在150μm左右,不同靶材料对靶后方出射光斑尺寸有明显影响,随着靶材原子序数增加,出射光斑尺寸开始时逐渐减小,但进一步的增加会使光斑尺寸有一定扩大,呈现抑制趋势;不同微靶结构对光斑尺寸影响与结构有明显关系,圆柱与锥体光斑尺寸差异达到30μm。与传统的透射X射线管相比,在不需要强力电子聚焦设备的情况下,选择微锥形靶结构与银靶材料比采用圆柱钨靶的出射光斑尺寸减小17.93%,更小的光斑尺寸使得X射线成像的精度与准确性得到提高。

关键词：微靶X射线管靶材料光斑尺寸蒙特卡罗模拟

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徐孝宓对《尔雅诂林叙录》书目提要的贡献

图书馆 2022年第6期 98-102页

作者：杜朝晖闫昱丞湖北大学文学院古籍研究所武汉430062

徐孝宓受朱祖延之托,审阅《尔雅诂林叙录》书目提要的书稿,从存世的5 000余言的审稿记录来看,其建议被采纳者十有七八。徐孝宓对提要中存在的版本著录、提要考证、文献征引、行文规范等方面的问题悉数订正,为《尔雅诂林》的编撰做出了... 详细信息

徐孝宓受朱祖延之托,审阅《尔雅诂林叙录》书目提要的书稿,从存世的5 000余言的审稿记录来看,其建议被采纳者十有七八。徐孝宓对提要中存在的版本著录、提要考证、文献征引、行文规范等方面的问题悉数订正,为《尔雅诂林》的编撰做出了重要贡献。

关键词：徐孝宓尔雅诂林叙录书目提要

Towards Data-Driving Multi-View Evaluation Framework for Scratch

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Tsinghua Science and Technology 2024年第2期29卷 517-528页

作者： Xiaolin Chai yan Sun yan Gao Department of Computer Science Beijing University of Posts and TelecommunicationBeijing 100876China Intellectual Property Institute Shandong Polytechnic CollegeJining 272067China

As one of the most popular visual programming languages,Scratch has a lot of evaluation around *** evaluation can help programmers understand their projects *** the same time,it can also provide a reference for them to browse other projects in the online *** of the existing evaluations on Scratch are carried from three perspectives:Computational Thinking(CT)ability,visual presentation aesthetics,and code *** them,the assessment of CT and code quality is mainly carried out from the program script,while the evaluation of visual aesthetics is analyzed from the perspective of image sequences generated by project *** single-view evaluation focuses on the performance of a program in a certain aspect and is *** this paper,we propose a multi-view evaluation framework to integrate various evaluations using different *** quantitatively analyze the assessment of different views driven by *** with overall evaluations that represent human opinions,we analyze their differences and *** experiments,we determine the weights of different integration policies,the proposed multi-view evaluation method can generate evaluation results similar to human opinions.

关键词： Scratch Computational Thinking(CT) visual aesthetic static analysis integration policy machine learning

Forward to the Special Topic on“Solving Differential Equations with Deep Learning”

维普期刊数据库评论

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Journal of Systems Science & Complexity 2024年第2期37卷 389-390页

作者： yan Zhenya Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China

The concept of artificial intelligence(AI)was first presented at the Dartmouth SummerResearch Project on AI hosted by McCarthy and Minsky in *** that,the developmentof AI has experienced ups and downs due to some limited conditions including intelligentcomputing techniques,computer and hardware and software^([1,2]).In particular,with the rapidof deep artificial neural networks,machine learning(ML)and deep learning(DL)techniques^([3,4])have been applied in many fields of science and engineering,including machine translation,image recognition,genomics,scientific computing and atmospheric science,etc^([5]).

关键词： has artificial hardware

湖北省图书馆藏汪昂手批本《宋元通鉴》价值述略

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图书馆杂志 2023年第7期42卷 132-136页

作者：杜朝晖周娜闫昱丞湖北大学文学院湖北武汉430062

汪昂手批本《宋元通鉴》,为存世孤本,现藏于湖北省图书馆。上有汪氏批语600余条,凡12000余字,是研究汪昂史学思想珍贵的文献资料。批语指出书中史事繁复、文句错讹等问题,为《宋元通鉴》的整理和研究提供了参考。《宋元通鉴》在明清两... 详细信息

汪昂手批本《宋元通鉴》,为存世孤本,现藏于湖北省图书馆。上有汪氏批语600余条,凡12000余字,是研究汪昂史学思想珍贵的文献资料。批语指出书中史事繁复、文句错讹等问题,为《宋元通鉴》的整理和研究提供了参考。《宋元通鉴》在明清两代呈现截然不同的两种评价,汪批本正是展现明清易代之际世人对《宋元通鉴》评价发生转变的重要材料。

关键词：汪昂《宋元通鉴》手批本阅读史

一种折中的小波阈值方法对γ能谱平滑处理的研究

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原子核物理评论 2014年第3期31卷 407-410页

作者：颜瑜成刘明哲刘福至成都理工大学地质灾害防治与地质环境保护国家重点实验室成都610059 成都理工大学核技术与自动化工程学院成都610059

采用小波软、硬阈值函数折中后的小波阈值方法对天然放射性环境下γ谱数据进行平滑处理。通过Matlab数据分析软件,分析对比了五种不同的平滑去噪方法:五点平滑法、傅里叶变换法、小波软阈值法、小波硬阈值法,以及折中的小波阈值方法。... 详细信息

采用小波软、硬阈值函数折中后的小波阈值方法对天然放射性环境下γ谱数据进行平滑处理。通过Matlab数据分析软件,分析对比了五种不同的平滑去噪方法:五点平滑法、傅里叶变换法、小波软阈值法、小波硬阈值法,以及折中的小波阈值方法。结果表明:折中的小波阈值方法在反映γ能谱特征的峰本比和峰总比分别为7.1609,0.3945,平滑去噪效果要明显优于其他四种方法,能最大程度地保留原始信号特征,具有较高的应用价值。

关键词：小波阈值平滑去噪 γ能谱 Matlab程序

Large eddy simulation study of 3D wind field in a complex mountainous area under different boundary conditions

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2024年第7期25卷 541-556页

作者： yan LI Lei yan Xuhui HE School of Civil Engineering Central South UniversityChangsha410075China National Engineering Research Center for High-speed Railway Construction Changsha410075China Hunan Provincial Key Laboratory for Disaster Prevention and Mitigation of Rail Transit Engineering Structures Changsha410075China

Large eddy simulations generally are used to predict 3D wind field characteristics in complex mountainous *** simulation boundary conditions,such as the height and length of the computational domain or the characteristics of inflow turbulence,can significantly impact the quality of *** this study,we examined these boundary conditions within the context of the mountainous terrain around a long-span cable-stayed bridge using a wind tunnel *** sizes of computational domains and turbulent incoming wind velocities were used in large eddy *** results show that when the height of the computational domain is five times greater than the height of the terrain model,there is minimal influence from the top wall on the wind field characteristics in this complex mountainous *** the length of the wake region of the computational domain has negligible effects on the wind *** in the inlet boundary reduces the length of the wake region on a leeward hill with a low slope,but has less impact on the mean wind velocity of steep hills.

关键词： Large eddy simulation(LES) Spectral representation method Recycling method High mountainous canyon Wind characteristics Atmospheric boundary layer Computational domain