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Full-duplex strategy for video object segmentation

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Computational Visual Media 2023年第1期9卷 155-175页

作者： Ge-Peng Ji Deng-Ping Fan Keren Fu Zhe Wu jianbing shen Ling Shao School of Computer Science Wuhan UniversityWuhanChina Computer Vision Lab ETH ZurichETF C113.2Sternwartstrasse 78092 ZurichSwitzerland College of Computer Science Sichuan UniversityChengduChina Peng Cheng Laboratory ShenzhenChina School of Computer Science Beijing Institute of TechnologyBeijingChina Inception Institute of Artificial Intelligence Abu DhabiUnited Arab Emirates

Previous video object segmentation approachesmainly focus on simplex solutions linking appearance and motion,limiting effective feature collaboration between these two *** this work,we study a novel and efficient full-duplex strategy network(FSNet)to address this issue,by considering a better mutual restraint scheme linking motion and appearance allowing exploitation of cross-modal features from the fusion and decoding ***,we introduce a relational cross-attention module(RCAM)to achieve bidirectional message propagation across embedding *** improve the model’s robustness and update inconsistent features from the spatiotemporal embeddings,we adopt a bidirectional purification module after the *** experiments on five popular benchmarks show that our FSNet is robust to various challenging scenarios(e.g.,motion blur and occlusion),and compares well to leading methods both for video object segmentation and video salient object *** project is publicly available at https://***/GewelsJI/FSNet.

关键词： video object segmentation(VOS) video salient object detection(V-SOD) visual attention

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南通市地下水控采与压采措施及成效分析

山西建筑 2024年第4期50卷 119-122页

作者：沈建兵陈亚楠包力宋毅如东县水资源管理所江苏南通226400 江苏省地质环境勘查院江苏南京211102

在调查了南通市地下水开采历程及开发利用现状基础上,从完善水资源管理法律法规、落实最严格水资源管理制度及开展多轮地下水压采工作等方面分析南通地下水控采和压采对策措施,并对多年来地下水压采成效进行了评估,为南通市进一步加强... 详细信息

在调查了南通市地下水开采历程及开发利用现状基础上,从完善水资源管理法律法规、落实最严格水资源管理制度及开展多轮地下水压采工作等方面分析南通地下水控采和压采对策措施,并对多年来地下水压采成效进行了评估,为南通市进一步加强地下水开发利用管理和水资源保护提供有力支撑。

关键词：地下水开采历程控采压采

Identifying the enhancement mechanism of Al/MoO_(3) reactive multilayered films on the ignition ability of semiconductor bridge using a one-dimensional gas-solid two-phase flow model

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Defence Technology（防务技术） 2024年第3期33卷 168-179页

作者： jianbing Xu Yuxuan Zhou Yun shen Yueting Wang Yinghua Ye Ruiqi shen School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China Micro-Nano Energetic Devices Key Laboratory of MIIT Nanjing 210094China Institute of Space Propulsion Nanjing University of Science and TechnologyNanjing 210094China

Energetic Semiconductor bridge(ESCB)based on reactive multilayered films(RMFs)has a promising application in the miniature and intelligence of initiator and pyrotechnics *** the ignition enhancement mechanism of RMFs on semiconductor bridge(SCB)during the ignition process is crucial for the engineering and practical application of advanced initiator and pyrotechnics *** this study,a one-dimensional(1D)gas-solid two-phase flow ignition model was established to study the ignition process of ESCB to charge particles based on the reactivity of Al/MoO_(3) *** order to fully consider the coupled exothermic between the RMFs and the SCB plasma during the ignition process,the heat release of chemical reaction in RMFs was used as an internal heat source in this *** is found that the exothermal reaction in RMFs improved the ignition performance of *** the process of plasma rapid condensation with heat release,the product of RMFs enhanced the heat transfer process between the gas phase and the solid charge particle,which accelerated the expansion of hot plasma,and heated the solid charge particle as well as gas phase region with low *** addition,it made up for pressure loss in the gas *** the plasma dissipation process,the exothermal chemical reaction in RMFs acted as the main heating source to heat the charge particle,making the surface temperature of the charge particle,gas pressure,and gas temperature rise *** result may yield significant advantages in providing a universal ignition model for miniaturized ignition devices.

关键词： Ignition enhancement mechanism 1D gas-solid two-phase flow Al/MoO_(3)reactive multilayered films Semiconductor bridge Miniaturized ignition device

Design,preparation,and characterization of a novel ZnO/CuO/Al energetic diode with dual functionality:Logic and destruction

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Defence Technology（防务技术） 2024年第4期34卷 57-68页

作者： Jialu Yang Jiaheng Hu Yinghua Ye jianbing Xu Yan Hu Ruiqi shen School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China Micro-Nano Energetic Devices Key Laboratory of MIIT Nanjing 210094China Institute of Space Propulsion Nanjing University of Science and TechnologyNanjing 210094China

Self-destructing chips have promising applications for securing *** paper proposes a new concept of energetic diodes for the first time,which can be used for self-destructive chips.A simple two-step electrochemical deposition method is used to prepare ZnO/CuO/Al energetic diode,in which N-type ZnO and P-type CuO are constricted to a PN *** paper comprehensively discusses the material properties,morphology,semiconductor characteristics,and exploding performances of the energetic *** results show that the energetic diode has typical rectification with a turn-on voltage of about 1.78 V and a reverse leakage current of about 3×10^(-4)*** a constant voltage of 70 V loads to the energetic diode in the forward direction for about 0.14 s or 55 V loads in the reverse direction for about 0.17 s,the loaded power can excite the energetic diode exploding and the current rises to about100 *** to the unique performance of the energetic diode,it has a double function of rectification and *** energetic diode can be used as a logic element in the normal chip to complete the regular operation,and it can release energy to destroy the chip accurately.

关键词： Energetic diode ZnO—CuO—Al thermite ZnO/CuO PN junction Electrical explosion performance Self-destructing chips

A stability evaluation method for deep-seated toppling in the upper Lancang river,Southwestern China

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第7期16卷 2388-2410页

作者： Yibing Ning Huiming Tang jianbing Peng Yanjun shen John V.Smith Bocheng Zhang College of Geological Engineering and Geomatics Chang’an UniversityXi’an710054China Academy of Yellow River Sciences of Shaanxi Province Chang’an UniversityXi’an710054China Badong National Observation and Research Station of Geohazards China University of GeosciencesWuhan430074China School of Engineering RMIT UniversityMelbourne3001Australia

Deep-seated toppling in the upper reaches of the Lancang River,southwest China involves deformations exceeding 100 m in *** slope deformation is initiated by river downcutting and evolves distinctive characteristics with a depth of river *** this study,we propose a system for evaluating the stability of deep-seated toppled slopes in different evolutionary *** system contains identification criteria for each evolutionary stage and provides the corresponding stability evaluation *** on the mechanical and kinematic analysis of slope blocks,the specific stage of slope movement can be identified in the field through outcrop mapping,in situ tests,surface displacement monitoring,and adit and borehole *** stability evaluation methods are established based on the limiting equilibrium theory and the strain compatibility between the undisturbed zone and the toppled ***,several sample slopes in different evolution stages have been investigated to verify the applicability and accuracy of the proposed stability evaluation *** results indicate that intense tectonic activity and rapid river incision lead to a maximum principal stress ratio exceeding 10 near the slope surface,thus triggering widespread toppling deformations along the river *** considering the losses of joint cohesion during the further rotation process,the safety factor of the slope drops by 7%e28%.The self-stabilization of toppling deformation can be recognized by the layer symmetry configuration after the free rotation of the deflected *** toppled rock blocks mainly suffer sliding failures beyond the layer symmetry *** factor of safety of the K73 rockslide decreased from 1.17 to 0.87 by considering the development of the potential sliding surface and the toesaturated zone.

关键词： Stability evaluation Deep-seated toppling Evolutionary process Reservoir impoundment Rock slope

RGB-D salient object detection:A survey

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Computational Visual Media 2021年第1期7卷 37-69页

作者： Tao Zhou Deng-Ping Fan Ming-Ming Cheng jianbing shen Ling Shao Inception Institute of Artificial Intelligence(IIAI) Abu DhabiUnited Arab Emirates

Salient object detection,which simulates human visual perception in locating the most significant object(s)in a scene,has been widely applied to various computer vision ***,the advent of depth sensors means that depth maps can easily be captured;this additional spatial information can boost the performance of salient object *** various RGB-D based salient object detection models with promising performance have been proposed over the past several years,an in-depth understanding of these models and the challenges in this field remains *** this paper,we provide a comprehensive survey of RGBD based salient object detection models from various perspectives,and review related benchmark datasets in ***,as light fields can also provide depth maps,we review salient object detection models and popular benchmark datasets from this domain ***,to investigate the ability of existing models to detect salient objects,we have carried out a comprehensive attribute-based evaluation of several representative RGB-D based salient object detection ***,we discuss several challenges and open directions of RGB-D based salient object detection for future *** collected models,benchmark datasets,datasets constructed for attribute-based evaluation,and related code are publicly available at https://***/taozh2017/RGBD-SODsurvey.

关键词： RGB-D saliency light fields benchmarks

Mitigating the negative catalytic effect of CuO by FAS-17 coated Al nanopowder:Isothermal ageing of Al/CuO nanothermite at 71°C and 60%relative humidity

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Defence Technology（防务技术） 2024年第4期34卷 156-167页

作者： Fuwei Li Qian Wang Jian Cheng Zehua Zhang Yuxuan Zhou Keer Ouyang jianbing Xu Yinghua Ye Ruiqi shen School of Chemistry and Chemical Engineering Nanjing University of Science&TechnologyNanjing 210094China Micro-Nano Energetic Devices Key Laboratory Ministry of Industry and Information TechnologyNanjing 210094JiangsuChina Institute of Space Propulsion Nanjing University of Science and TechnologyNanjing 210094China

The safety and reliability of weapon systems would be significantly affected by changes in the performance of energetic materials due to ambient temperature and *** have promising applications due to their excellent *** it becomes extremely important to understand their aging and failure process in the environment before using ***,the aging and failure process of Al/CuO in 71°C/60%RH were investigated,and showed that CuO nanoparticles negatively catalyze Al nanopowders,resulting in rapid *** anti-aging effect of FAS-17-coated Al nanopowder was also *** aging process of Al,Al/CuO,and Al@FAS-17/CuO in high humidity and heat environment were revealed by quasi-in situ SEM and TEM *** with the aging of pure Al,the Al nanopowder in the nanothermites strongly agglomerated with the CuO nanopowder and hydrated *** may be caused by CuO catalyzed hydration of Al *** energy release experiments showed that the performance of Al/CuO decreased rapidly and failed to ignite after 4 h of *** contrast,the Al@FAS-17/CuO thermite can achieve long-term stability of up to 60 h in the same environment by simple cladding of *** is found that FAS-17 coated Al nanopowder can prevent both particle agglomeration and water erosion,which is an effective means to make nanothermites application in high humidity and heat environment.

关键词： Al/CuO nanothermite FAS-17 coating Aging and failure process

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基于亮度分层的快速三边滤波器色调映射算法

计算机辅助设计与图形学学报 2011年第1期23卷 85-90页

作者：刘衡生沈建冰北京理工大学智能信息技术北京市重点实验室北京100081

三边滤波器是在双边滤波器的基础上引入了梯度信息,能够很好地保留图像细节,但其时间开销较大.为此,提出了一种基于亮度分层的快速三边滤波算法.通过对三边滤波器中的梯度滤波阶段进行加速,把图像按照像素亮度值分成多层,并对每一层计算... 详细信息

三边滤波器是在双边滤波器的基础上引入了梯度信息,能够很好地保留图像细节,但其时间开销较大.为此,提出了一种基于亮度分层的快速三边滤波算法.通过对三边滤波器中的梯度滤波阶段进行加速,把图像按照像素亮度值分成多层,并对每一层计算2幅中间图像,可在中间图像上进行高斯滤波得到梯度滤波的结果.实验结果表明,使用该算法进行高动态范围图像的色调映射,速度较原三边滤波器提高约10~15倍,而获得的低动态范围图像的视觉质量接近于原三边滤波器.

关键词：高动态范围图像快速三边滤波器色调映射亮度分层

秦岭生态地质环境系统本底特征及研究体系初步构想

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地球科学 2024年第6期49卷 2103-2119页

作者：申艳军陈兴彭建兵穆青翼宁奕冰段丰浩师百垒长安大学地质工程与测绘学院陕西西安710054 西安科技大学地质与环境学院陕西西安710054 黄土科学全国重点实验室(筹) 陕西西安710054

生态文明建设已成为关系人民福祉和民族未来的重大战略任务.秦岭作为中国地理分界带、气候分区带和生态屏障带,也是黄河、长江的重要水源涵养地,其生态屏障功能对维系整个中国生态安全至关重要,在我国生态地质格局中占据重要地位.但目前... 详细信息

生态文明建设已成为关系人民福祉和民族未来的重大战略任务.秦岭作为中国地理分界带、气候分区带和生态屏障带,也是黄河、长江的重要水源涵养地,其生态屏障功能对维系整个中国生态安全至关重要,在我国生态地质格局中占据重要地位.但目前,在气候变化和人类活动的影响下,秦岭面临着地质环境多变、生态环境脆弱、地质灾害频发、人地系统不协调等一系列问题,导致秦岭中央生态屏障功能严重受限.生态地质环境作为生态系统载体,是开展秦岭生态保护与可持续发展研究的基础.本文尝试梳理秦岭生态地质环境系统要素组成及本底特征,掌握秦岭生态地质环境系统要素互馈与协同演进关系,明确秦岭生态损害-土水灾害-地质灾害递进演化过程,进而构建秦岭生态地质环境系统研究体系;同时,初步梳理了该领域亟待攻克五大关键科学问题.研究表明:(1)秦岭生态地质环境本底特征要素包括山体、岩体、土体、水体与林体,“五体”整体表现为:山脉西高东低、北陡南缓;构造复杂,岩性多样;土壤西贫瘠,东肥沃;北属黄河水系,南属长江水系,水系西疏东密;植被覆盖率高,植被类型差异东西较南北更为显著.(2)秦岭人地互馈强烈、工程建设活动频繁,导致局地生态损害严重,水土灾害及地质灾害频发.(3)秦岭生态地质环境系统由地质环境子系统、生态环境子系统和灾害环境子系统所组成,三大子系统间相互耦合、相互作用,互馈关系显著.(4)秦岭地质环境-生态环境-灾害环境三大子系统内要素组成多元、要素互馈显著,围绕各子系统要素间的互馈、协同、递进关系研究,剖析人类活动及外界环境对系统干扰劣化影响,构成了秦岭生态地质环境系统研究体系主体内容.(5)秦岭生态地质环境应把握生态绿色发展理念,聚焦生态地质安全和灾害环境系统问题,围绕秦岭林体-土体-岩体-山体-水体协同演化与动态调控机制,通过跨学科、多角度、全方位融合突破相关科学问题.研究以期为秦岭生态地质环境圈层互馈效应、协同演化机制及生态调控技术发展研究提供借鉴.

关键词：秦岭生态地质环境系统本底特征体系构想关键科学问题工程地质

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