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用于水下图像增强的多层级联融合增强网络

电光与控制 2025年第1期32卷 68-73页

作者：王炫钧邵菲马彦卿西安建筑科技大学理学院西安710000

为了提高水下无人潜航器决策的准确性,构建了一种用于增强水下图像的多层级联融合增强网络。首先,设计注意力引导的色彩增强模块并结合多层级联增强架构,在提取图像多尺度特征的同时,加强特征重用;其次,设计全局调整模块,将Swin Transfo... 详细信息

为了提高水下无人潜航器决策的准确性,构建了一种用于增强水下图像的多层级联融合增强网络。首先,设计注意力引导的色彩增强模块并结合多层级联增强架构,在提取图像多尺度特征的同时,加强特征重用;其次,设计全局调整模块,将Swin Transformer与扩张卷积相结合,提升网络对于退化图像整体增强效果;最后,将各模块提取到的特征信息经由三重特征聚合模块进行融合增强,得到增强水下图像。为了可以更好地训练模型,构造了联合损失函数。与其他水下图像增强方法的对比实验结果表明,所提方法对于水下图像存在的色偏、模糊等问题均有着良好的增强效果,并对后续特征提取任务的完成有着较大的促进作用。

关键词：水下无人潜航器水下图像增强多层级联增强架构全局调整三重特征聚合

改进YOLOv8的无人机航拍图像目标检测算法

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计算机工程与应用 2025年第1期61卷 121-130页

作者：梁燕何孝武邵凯陈俊宏重庆邮电大学通信与信息工程学院重庆400065 信号与信息处理重庆市重点实验室重庆400065

针对无人机航拍图像存在多个小目标聚集、目标尺度变化大的问题,提出一种改进YOLOv8的目标检测算法TS-YOLO(tiny and scale-YOLO)。在主干部分去除冗余的特征提取层,设计了一种高效特征提取模块(efficient feature extraction module,EF... 详细信息

针对无人机航拍图像存在多个小目标聚集、目标尺度变化大的问题,提出一种改进YOLOv8的目标检测算法TS-YOLO(tiny and scale-YOLO)。在主干部分去除冗余的特征提取层,设计了一种高效特征提取模块(efficient feature extraction module,EFEM),避免小目标特征消失在冗余信息中。在颈部设计了一种双重跨尺度加权特征融合方法(dual cross-scale weighted feature-fusion,DCWF),融合多尺度信息的同时抑制噪声干扰,提升特征表达能力。通过构建一种参数共享检测头(parameter-shared detection header,PSDH),使回归和分类任务实现参数共享,保证检测精度的同时有效降低了模型的参数量。所提模型在VisDrone-2019数据集上的精度(P)和召回率(R)分别达到54.0%、42.5%;相比于原始YOLOv8s模型,mAP50提高了5.0个百分点,达到44.5%,且参数量减少了55.8%,仅有4.94×106;在DOTAv1.0遥感数据集上,mAP50达到71.9%,仍具有较好的泛化能力。

关键词：目标检测无人机航拍图像 YOLOv8 小目标特征融合

LEAST-SQUARES MIXED FINITE ELEMENT METHODS FOR THE INCOMPRESSIBLE MAGNETOHYDRODYNAMIC EQUATIONS

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Journal of Computational Mathematics 2005年第3期23卷 327-336页

作者： shao-qinGao ICMSEC AcademyofMathematicsandSystemSciencesChineseAcademyofSciencesBeijing100080China//DepartmentofMathemaitcsHebeiUnviersityBaoding071002China

Least-squares mixed finite element methods are proposed and analyzed for the incompressible magnetohydrodynamic equations, where the two vorticities are additionally introduced as independent variables in order that the primal equations are transformed into the first-order systems. We show that there hold the coerciveness and the optimal error bound in appropriate norms for all variables under consideration, which can be approximated by all kinds of continuous element. Consequently, the Babuska-Brezzi condition(i.e. the inf-sup condition) and the indefiniteness are avoided which are essential features of the classical mixed methods.

关键词： The incompressible magnetohydrodynamic equation Vorticity Least-squares mixed finite element method

Efficient removal of naphthalene-2-ol from aqueous solutions by solvent extraction

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Journal of Environmental Sciences 2016年第9期28卷 120-129页

作者： Jingjing shao College of Environmental Science and Engineering Hunan University Changsha 410082 China Key Laboratory of Environmental Biology and Pollution Control (Hunan University) Ministry of Education Changsha 410082 China Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling College of Environmental Science and EngineeringZhejiang Gongshang University Hangzhou 310018 China

Naphthalene-2-ol is a typical biologically recalcitrant pollutant in dye *** extraction of naphthalene-2-ol from aqueous solutions using mixed solvents was *** extractants and diluents were evaluated,and the effects of volume ratio of extractant to diluent,initial p H,initial concentration of naphthalene-2-ol in aqueous solution,extraction time,temperature,volume ratio of organic phase to aqueous phase（O/A）,stirring rate and extraction stages,on extraction efficiency were examined *** and reuse of the spent extractant were also *** showed that tributyl phosphate（TBP） achieved 98% extraction efficiency for naphthalene-2-ol in a single stage extraction,the highest among the 12 extractants *** efficiency was optimized when cyclohexane and n-octane were used as *** solvent combination of 20% TBP,20% n-octanol and 60% cyclohexane（V/V） obtained the maximum extraction efficiency for naphthalene-2-ol,99.3%,within 20 min using three cross-current extraction stages under the following extraction conditions：O/A ratio of 1：1,initial p H of 3,25°C and stirring rate of 150 r/*** of mixed solvents was achieved by using 15%（W/W） Na OH solution at an O：A ratio of 1：1 and a contact time of 15 *** mixed solvents achieved an extraction capacity for naphthalene-2-ol stably higher than90% during five cycles after regeneration.

关键词： Extraction Naphthalene-2-ol Dye wastewater Regeneration

Query by diverse committee in transfer active learning

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Frontiers of Computer Science 2019年第2期13卷 280-291页

作者： Hao shao WTO School Shanghai University of International Business and Economics Shanghai 200336 China

Transfer active learning, which is an emerging learning paradigm, aims to actively select informative instances with the aid of transferred knowledge from related tasks. Recently, several studies have addressed this problem. However, how to handle the distributional differences betwee n the source and target domains remains an open problem. In this paper, a novel transfer active learning algorithm is proposed, inspired by the classical query by committee algorithm. Diverse committee members from both domains are maintained to improve the classification accuracy and a mechanism is included to evaluate each member during the iterations. Extensive experiments on both synthetic and real datasets show that our algorithm performs better and is also more robust than the state-of-the-art methods.

关键词： transfer learning active learning machine learning

美国小学科学教育标准修订的内容、特点及启示

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教学与管理 2025年第2期 73-76页

作者：张绍清付超然赣南师范大学教育科学学院江西赣州341000 赣南师范大学物理与电子信息学院江西赣州341000

美国的《新一代科学教育标准》代表了科学教育的创新进步,整合了前沿科研,并修正了旧标准的问题。通过分析《新一代科学教育标准》在教学素养、课程内容、教学方法和评估方面的创新,以及凸显科学学科的基础作用、学科工具的运用、学科... 详细信息

美国的《新一代科学教育标准》代表了科学教育的创新进步,整合了前沿科研,并修正了旧标准的问题。通过分析《新一代科学教育标准》在教学素养、课程内容、教学方法和评估方面的创新,以及凸显科学学科的基础作用、学科工具的运用、学科理念的革新和教育目标的重新定位等新特征,从科学教育理念、内容与方法方面为我国科学教育的发展提出建议。

关键词：美国小学科学教育科学课程教育标准

单元整体教学视角下高中英语课程思政实践研究

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英语教师 2025年第1期 151-156页

作者：邵晨张博广东省中山市第一中学广东中山528400

概述英语课程思政的内涵和特征。从逻辑关系、育人路线、场域和抓手三个角度分析通过单元整体教学落实高中英语课程思政的可行性。以人教版(2019年)高中《英语》必修三Unit 2 Morals and Virtues为例,探索单元整体教学视角下高中英语课... 详细信息

概述英语课程思政的内涵和特征。从逻辑关系、育人路线、场域和抓手三个角度分析通过单元整体教学落实高中英语课程思政的可行性。以人教版(2019年)高中《英语》必修三Unit 2 Morals and Virtues为例,探索单元整体教学视角下高中英语课程思政实践路径,即梳理单元大小观念,挖掘思政元素;设计单元学习目标,融入思政理念;规划单元学习活动,聚焦思政价值;优化单元教学评价,增强思政实效。

关键词：高中英语课程思政单元整体教学大观念

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基于边缘引导与特征融合的分阶段图像去模糊

光电子·激光 2025年第1期36卷 17-26页

作者：陈清江邵菲王炫钧西安建筑科技大学理学院

针对现有方法去模糊后图像缺乏足够清晰边缘的问题，提出了一种基于边缘引导与特征融合的分阶段图像去模糊方法，分两个阶段逐步去除模糊。首先，第一阶段应用含双交叉集成注意力模块(dual cross integrated attention module, DCIAM)... 详细信息

针对现有方法去模糊后图像缺乏足够清晰边缘的问题，提出了一种基于边缘引导与特征融合的分阶段图像去模糊方法，分两个阶段逐步去除模糊。首先，第一阶段应用含双交叉集成注意力模块(dual cross integrated attention module, DCIAM)的编解码网络学习不同尺度下图像的内容特征，初步去除模糊信息。然后，构建边缘分支网络(edge branch network, EBN)提取图像边缘特征。再次，设计了边缘引导去模糊模块(edge-guided deblurring module, EGDM)以耦合不同分辨率下图像的内容与边缘特征。最后，第二阶段通过级联的残差块和DCIAM进一步去除图像模糊，并通过引入自校准注意融合模块(self-calibrating attention fusion module, SCAFM)增强特征表达效果。实验结果表明：所提方法去模糊后图像的峰值信噪比和结构相似度均值分别达到32.78 dB和0.964,均优于其他对比方法。所提方法可以显著提高去模糊性能且去模糊后图像边缘结构更加完整。

关键词：图像去模糊边缘引导特征融合多尺度框架注意力机制

Deciphering the molecular mechanisms of Simiaowan in the treatment of hyperuricemia: in vivo and in silico approaches

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Traditional Medicine Research 2025年第2期10卷 37-54页

作者： Yong-Chang Zeng Jun-Hong Wu Dan-Dan Xu Kang He Chang-Qing Liu Li-Fei Song Zheng-Zhi Wu Qian-Qian Jiang shao-Yu Liang Department of Neurology The First Affiliated Hospital of Shenzhen UniversityShenzhen 518020China Pharmaceutical Department The Affiliated TCM Hospital of Guangzhou Medical UniversityGuangzhou 510000China School of Pharmacy Guizhou University of Traditional Chinese MedicineGuiyang 550025China Guangzhou Zeli Medical Technology Co. Ltd.Guangzhou 510700China

Background:Simiaowan(SMW),a well-known traditional Chinese medicine,has been employed to treat hyperuricemia(HUA)and gout for ***,the bioactive components and underlying mechanisms have not been *** objective of this study was to identify the active components and potential mechanisms of SMW by integrating pharmacological experimentation,serum pharmacochemistry,network pharmacology and molecular ***:HUA rats modelling by high-fat/high-sugar diet and potassium oxonate/adenine oral administration were used to evaluate the pharmacodynamic effects of ***-Q-Exactive-MS/MS was employed to detect the bioactive components present in SMW-containing *** pharmacology and molecular docking were utilized to elucidate the potential targets and underlying ***:SMW effectively ameliorated HUA rats via the inhibition of uric acid(UA)production,promotion of UA excretion,improvement of lipid and glucose metabolic abnormalities,antioxidant,anti-inflammatory and anti-insulin resistance effects.A total of 73 compounds detected in SMW-containing serum were identified as potential active components,with alkaloids,flavonoids,organic acids,and terpenoids emerging as the primary active *** 203 corresponding targets were obtained as SMW anti-HUA/gout targets,which mainly participated in apoptosis,insulin resistance,TNF,PI3K-Akt,HIF-1,NF-κB,MAPK,IL-17 and TLR signaling *** docking indicated that active compounds(***,phellodendrine,quercetin,formononetin,ferulic acid)had superior binding abilities to the key targets(*** carrier family 22 member 12(URAT1),solute carrier family 22 member 6(OAT1),ATP-binding cassette sub-family G member 2(ABCG2),solute carrier family 2,facilitated glucose transporter member 9(GLUT9),xanthine dehydrogenase/oxidase(XDH),transcription factor p65(RELA),toll-like receptor 4(TLR4),prostaglandin G/H synthase 2(PTGS2),caspase-3(CASP3),insulin(INS)).Conclusion:S

关键词： hyperuricemia network pharmacology serum pharmacochemistry Simiaowan UPLC-Q-Exactive-MS/MS