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期刊论文 8

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2023 1

2022 1

2018 1

2014 1

2011 1

2009 1

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冲击波 1

冲刷坑 1

多孔材料 1

多波束测深数据 1

崩岸 1

形态学量度 1

形态梯度算子 1

形态要素 1

时空结合 1

水下陡坎 1

河岸侵蚀 1

灵活性 1

物质点法 1

软体动物运动合成；动态姿态数据集；形态学分析；长时间姿态序列生成 1

运动区域 1

运动对象 1

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Numerical simulations of morphological changes in barrier islands induced by storm surges and waves using

Soumendra Nath KUIRY, Yan DING, Sam S Y WANG

《结构与土木工程前沿（英文）》 2014年第8卷第1期页码 57-68 doi: 10.1007/s11709-014-0235-0

摘要： In this paper, an advanced explicit finite volume flow model in two-dimensions is presented for simulating supercritical coastal flows and morphological changes in a tidal/coastal inlet and barrier islands due to storm surges and waves. This flow model is coupled with existing wave-action model and sediment transport model. The resulting integrated coastal process model is capable of simulating flows induced by extreme conditions such as waves, surge tides, river flood flows, etc., and morphological changes induced by rapid coastal currents and waves. This developed supercritical flow model is based on the solution of the conservative form of the nonlinear shallow water equations with the effects of the Coriolis force, uneven bathymetry, wind stress, and wave radiation stresses. The forward Euler scheme is used for the unsteady term; and the convective term is discretized using the Godunov-type shock-capturing scheme along with the HLL Riemann solver on non-uniform rectilinear grids. The accuracy of the developed model is investigated by solving an experimental dam-break test case. Barrier island breaching, overflow and overwash due to severe storm attack are simulated and the predicted morphological changes associated to the events are analyzed to investigate the applicability of the model in a coast where all the physical forces are present.

关键词： coastal inlet coastal process modeling supercritical flow sediment transport barrier islands

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Current techniques for assessing developmental neurotoxicity of pesticides

GAO Yu, TIAN Ying, SHEN Xiaoming

《医学前沿（英文）》 2008年第2卷第4期页码 337-343 doi: 10.1007/s11684-008-0064-4

摘要： Organophosphates (OPs) and Pyrethroids (PRY) have been widely used in agriculture and in the home as broad spectrum insecticides, but may produce considerable risk to human health, especially to children. Children are more susceptible to environmental exposure, and concern about the neurotoxic effects of pesticide exposure on children is increasing. There is a need for better understanding of the potential developmental neurotoxicity of pesticides. Techniques for assessing developmental neurotoxicity of pesticides will continue to be developed, rendering a need for flexibility of testing paradigms. Current techniques used in evaluating the developmental neurotoxicity of OPs and PRY are presented in this review. These include: (1) techniques (PC12 cells, C6 cells and other cell models); (2) Non-mammalian models (sea urchins, zebrafish and other non-mammalian models); and (3) mammalian models (morphological techniques, neurobehavioral assessments and biomarkers).

关键词： paradigms Pyrethroids non-mammalian susceptible morphological

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Imaging technologies for plant high-throughput phenotyping: a review

Yong ZHANG, Naiqian ZHANG

《农业科学与工程前沿（英文）》 2018年第5卷第4期页码 406-419 doi: 10.15302/J-FASE-2018242

摘要：

Phenomics studies a variety of phenotypic plant traits and is the key to understanding genetic functions and environmental effects on plants. With the rapid development of genomics, many plant phenotyping platforms have been developed to study complex traits related to the growth, yield, and adaptation to biotic or abiotic stress, but the ability to acquire high-throughput phenotypic data has become the bottleneck in the study of plant genomics. In recent years, researchers around the world have conducted extensive experiments and research on high-throughput, image-based phenotyping techniques, including visible light imaging, fluorescence imaging, thermal imaging, spectral imaging, stereo imaging, and tomographic imaging. This paper considers imaging technologies developed in recent years for high-throughput phenotyping, reviews applications of these technologies in detecting and measuring plant morphological, physiological, and pathological traits, and compares their advantages and limitations.

关键词： high-throughput phenotyping imaging technology morphological traits pathological traits physiological traits

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灵活可变的运动图像的分割算法

赵彦玲,张之超,高振,张庆超

《中国工程科学》 2006年第8卷第5期页码 84-87

摘要：

运动图像的分割在基于内容的视频编码及视频检索中占有重要的地位。利用运动图像帧中的时空域信息，提出了一种分割运动对象的方法。其最大的特点是灵活性，可以根据序列的实际情况来选择算法。实验证明分割效果较好并节省了处理时间。

关键词：时空结合运动区域运动对象形态梯度算子灵活性

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Morphological and mechanical characterization of a PMMA/CdS nanocomposite

Vishal MATHUR, Manasvi DIXIT, K.S. RATHORE, N. S. SAXENA, K.B. SHARMA

《化学科学与工程前沿（英文）》 2011年第5卷第2期页码 258-263 doi: 10.1007/s11705-010-1014-7

摘要： Thick film of poly(methyl methacrylate) (PMMA)/CdS nanocomposite have been synthesized by the solution casting process. The nanostructure of the CdS particles has been ascertained through the small angle X-ray scattering (SAXS) technique. The surface morphological characterization of the PMMA/CdS nanocomposite has been done through scanning electron microscopy (SEM) analysis. The variation of mechanical loss factor (Tan ) with temperature and tensile properties of prepared samples have been studied using Dynamic Mechanical Analyzer (DMA). This study reveals that the glass transition temperature ( ), Young’s modulus, and fracture energy of the PMMA/CdS nanocomposite are greatly influenced by the existence of interfacial energetic interaction between dispersed CdS nanoparticles and the matrix of PMMA.

关键词： poly(methyl methacrylate) (PMMA) filler nanoparticles polymer semiconducting nanocomposite tensile properties glass transition temperature

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冲击作用下多孔材料热力学特征的模拟与分析

许爱国,张广财,蔚喜军,潘小飞,朱建士

《中国工程科学》 2009年第11卷第9期页码 13-19

摘要：

强冲击波的作用可在多孔材料中诱发复杂的时空耗散过程，在这期间系统整体处于远离平衡的状态，对这一过程的稳定模拟和结果分析均具有较强的挑战性。使用近期针对超高速碰撞而发展起来的物质点方法对这一过程进行模拟，引入积分几何和数值图像处理中的形态学描述来处理和分析系统热力学特征量例如温度的Turing斑图，揭示出3个Minkowski泛函(白色区域相对面积、边界总长度、欧拉特征量)与系统中“高温区”所占份额、“热点”在空间的分布方式之间的对应，揭示出Minkowski泛函演化特征与冲击波及多孔材料相互作用过程之间的对应。研究了孔隙度和冲击波强度对物质状态参量的影响。

关键词：冲击波多孔材料物质点法形态学量度

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长江干流水下岸坡侵蚀自动识别 Article

颜阁, 程和琴, 姜泽宇, 滕立志, 唐明, 石天, 姜月华, 杨国强, 周权平

《工程（英文）》 2022年第19卷第12期页码 50-61 doi: 10.1016/j.eng.2021.03.027

摘要：

识别河岸侵蚀的风险是确保早期预警和预防或控制包括长江在内的河流集水区崩岸的一项重要挑战。本文引入一种基于地貌要素的算法，通过调整多波束回波探测数据的平坦度来提取河岸侵蚀信息。该算法绘制了10 个水下地貌形态要素，包括坡、坡脚、水平面、脊、顶、谷、凹陷、凸起、坑和坡肩。利用21 个平坦度值构建水下河岸侵蚀特征的识别策略。结果表明：当平坦度为10°时，作为侵蚀载体的岸坡陡坎被坡要素覆盖。平坦度为0°时，冲刷坑和河岸破损由河岸附近的坑要素和岸坡中的凹陷表示。河道水下沙波是加速河岸侵蚀的重要因素，尤其是靠近河岸坡脚的沙波；沙波的临界平坦度为3°。分析了水下地貌形
态要素的分布，并用于绘制河岸侵蚀库存图。分析结果表明，近岸区水深较大，易形成较大的冲刷坑和较长的河岸陡坎。窝崩往往发生在较长的岸坡处，以缩短其长度。经讨论陆地、海洋和河流环境中平坦度值的不同设置，得出的结论是，多样化的平坦度值能够显著识别河流水下地貌形态。因此，本研究为基于平坦度的河流水下地貌形态要素识别提供参考，增强了从大量多波束测深数据定位水下岸坡失稳迹象与风险的能力。

关键词：多波束测深数据形态要素河岸侵蚀水下陡坎冲刷坑崩岸

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基于路径引导的果蝇幼虫运动合成 Research Article

陈俊君1,2,王燚军1,孙艺璇1,余益飞1,刘子奥1,龚哲峰1,4,5,郑能干1,3

《信息与电子工程前沿（英文）》 2023年第24卷第10期页码 1482-1496 doi: 10.1631/FITEE.2200529

摘要：软体动物身体可变形性和高自由度的特点为数学建模和运动合成带来很大挑战。受限于刚体骨骼假设或模型容量，传统解析模型和统计模型难以生成逼真和多模态的软体动物运动。本文建立一个大规模果蝇幼虫动态姿态数据集，并提出一个运动合成模型（Path2Pose），通过给定一段幼虫初始运动姿态序列和引导路径生成后续运动姿态序列。进一步地，通过循环生成的方式，Path2Pose模型可以合成长时间、多模态的果蝇幼虫运动姿态序列。运动评估实验表明，Path2Pose模型可以生成高度真实的软体动物运动，并在现有同类型模型中取得最好生成效果。本文的工作证明了深度神经网络在软体动物运动合成任务中的良好性能以及通过定制软体动物体型和引导路径生成长时间运动姿态的可行性。

关键词：软体动物运动合成；动态姿态数据集；形态学分析；长时间姿态序列生成

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标题作者时间类型操作

Numerical simulations of morphological changes in barrier islands induced by storm surges and waves using

Soumendra Nath KUIRY, Yan DING, Sam S Y WANG

期刊论文

Current techniques for assessing developmental neurotoxicity of pesticides

GAO Yu, TIAN Ying, SHEN Xiaoming

期刊论文

Imaging technologies for plant high-throughput phenotyping: a review

Yong ZHANG, Naiqian ZHANG

期刊论文