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Journal of Oceanology and Limnology 2025年第1期43卷 16-28页

作者： Xiunan LI Peng CHEN Jingsong YANG Wentao AN dan luo Gang ZHENG Aiying LU Ocean College Zhejiang UniversityZhoushan 316021China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China National Satellite Ocean Application Service Ministry of Natural ResourcesBeijing 100081China

Obtaining accurate ship positions and headings in remote sensing images plays a crucial role in various ***,current deep learning-based methods primarily focus on ship position detection,while the detection of ship wakes relies on traditional non-deep learning approaches,which often underperform in complex marine *** proposed a novel,simple,and efficient method called Point-Vector *** proposed method leverages convolutional neural networks(CNN)for feature extraction and subsequently integrates multi-scale features to generate high-resolution feature *** the final stage,ship positions and headings are represented using a combination of points and *** experiments with results from automatic identification system(AIS)reports demonstrate that our method achieved impressive performance in two-class ship target detection,with an average precision of 96.4%,recall rate of 94.3%,and an F 1 score of 95.2%.Notably,the average heading error was 3.3°.The proposed model achieved a practical inference speed(FPS>30),and the average processing time for inferring a large-scale Sentinel-2 remote sensing image was 11.4 s.

关键词： deep learning ship detection heading remote sensing Sentinel-2

科学思维的水平划分及单元教学模式下的应用策略

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生物学教学 2025年第1期50卷 25-28页

作者：罗丹四川省成都市新都四中成都610000

科学思维是生物学学科核心素养不可缺少的组成要素,其思维水平的划分可作为一线教师的参考量表。本文从知识类型、科学思维方法和问题情境三个维度构建了初中生物学科学思维水平的量表。并与新课程教学中倡导的单元教学模式相结合,提出... 详细信息

科学思维是生物学学科核心素养不可缺少的组成要素,其思维水平的划分可作为一线教师的参考量表。本文从知识类型、科学思维方法和问题情境三个维度构建了初中生物学科学思维水平的量表。并与新课程教学中倡导的单元教学模式相结合,提出了在教学设计和学生评价方面的应用策略,以促进学生的科学思维发展。

关键词：科学思维水平划分单元教学应用策略

Making stereopsis related to the ability of ocular deviation:a new paradigm for assessment of intermittent exotropia

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International Journal of Ophthalmology(English edition) 2025年第2期18卷 308-314页

作者： Jian-Bing Li Wan-Ting Kong Tao Shen Yong-Guang Yuan Chong-Lin Chen dan-Min Peng Min-Tong Liang Xuan He dan luo Jia-Yi Su Wei Wang Rui-Xin Wang Xin-Ping Yu State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510623Guangdong ProvinceChina Department of Ophthalmology the Third Affiliated HospitalSun Yat-Sen UniversityGuangzhou 510630Guangdong ProvinceChina Guangzhou Xinhua University Guangzhou 510520Guangdong ProvinceChina

AIM:To investigate the underlying factors by establishing a new paradigm for assessing control ability under stereopsis testing ***:This was a prospective observational *** evaluated the control ability of intermittent exotropia(IXT)patients in three conditions:natural 2D optotype viewing,2D optotype viewing with polarized glasses,and 3D optotype viewing with polarized *** with a smartphone,we captured videos to analyze the accurate time of spontaneous exodeviation and subsequent realignment before and after breaking ***,the correlation of stereopsis were also ***:A total of 48 patients(age range:4-33y;54.17%male)participated in the *** viewing 3D optotypes with polarized glasses,their median control scores were 1(interquartile range,0-4)at distance and 0(0-1)at *** scores were significantly better than those observed under natural viewing conditions,which were 2.5(1-5)at a distance and 1(0-3)at near(Friedman test,P=0.049).Furthermore,those subjects who exhibited exophoria(realignment within 2 seconds)while viewing 3D optotypes with polarized glasses were more likely to have measurable stereo vision(Kendall’sτb=-0.344,P=0.018).CONCLUSION:IXT patients exhibit enhanced control ability when using polarized glasses to view 3D optotypes,notably improving realignment *** expands our understanding of current tests and offers a potentially sensitive method for assessing IXT severity.

关键词： intermittent exotropia stereopsis control ability

Preparation and properties of maleic acid modified lignin reinforced nanocellulose composite film

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Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica 2025年第2期42卷 791-801页

作者： luo, dan Shu, Xuan Sun, Gaofeng Liu, Xiuyu Liu, Chao Dai, Hongqi Bian, Huiyang College of Light Industry and Food Engineering Nanjing Forestry University Nanjing210037 China Guangxi Key Laboratory of Chemistry and Engineering of Forest Products Key Laboratory of Chemistry and Engineering of Forest Products State Ethnic Affairs Commission Guangxi University for Nationalities Nanning530006 China

Lignin nanoparticles (LNP) were isolated from wheat straw using metal chloride-catalyzed maleic acid pretreatment in this study. With the addition of metal chlorides, LNP with small particle size, high carboxyl content (4.83 mmol/g), good dispersion and containing different metal ions were prepared. Subsequently, LNP was added as reinforcing agents to cellulose nanofibrils (CNF), and the composite films were successfully prepared by vacuum filtration method. The surface morphology, optical property, surface chromaticity value and mechanical property of pure CNF and composite films are compared and analyzed. The results show that the composite films could achieve more than 95% UVA shielding ratio and 99% UVB shielding ratio when LNP content is only 3wt%. Meanwhile, the addition of LNP significantly increase the tensile strength of composite film (up to 188.5 MPa). The interaction forces between CNF and different LNPs (276-406 nN) are all higher than those between CNFs (202 nN) as measured using AFM, which is consistent with the improvement in tensile strength of the composite films. In summary, LNP containing metal ions are introduced into CNF films to construct super-strong network with metal ion cross-linking and hydrogen bonding interactions, which provides a new idea for the development of lignin-reinforced cellulose-based film materials. © 2025 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.

关键词： Tensile strength

船行视角下山地城市滨江界面动态视觉感知评价

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风景园林 2025年第2期32卷 102-109页

作者：罗丹魏茹虹重庆大学建筑城规学院风景园林系重庆大学建筑城规学院陆军勤务学院军事设施系

【目的】连续的船行观景视角是山地城市滨江界面视觉景观感知研究的重要切入点,对该视角下的城市界面动态视觉感知研究可为宜居山地城市建设提供理论支持与实践指导。【方法】以重庆“两江四岸”核心区滨江界面为研究区域,根据游船视角... 详细信息

【目的】连续的船行观景视角是山地城市滨江界面视觉景观感知研究的重要切入点,对该视角下的城市界面动态视觉感知研究可为宜居山地城市建设提供理论支持与实践指导。【方法】以重庆“两江四岸”核心区滨江界面为研究区域,根据游船视角下的界面特征,利用层次分析法拟合眼动行为、问卷、空间指标等主客观数据建立评价模型,评价整体界面和视觉单元景观的视觉感知规律。【结果】可读性对整体界面视觉评价结果有显著影响,是导致界面感知差异的重要因素;多层次单元、特色单元、凹形单元、填充式单元和自然式单元5类单元结构中填充式单元视觉感知评价较低。视觉轨迹自上而下移动,视觉停留区集中于界面下端的江岸部分,游船、标志建筑、空间交界处是重要的视觉聚集点。【结论】基于整体界面空间层次、组成要素完整度、视觉反馈点控制提出可读性维度的优化建议,形成了从感知评价到空间优化的技术路径。

关键词：风景园林视觉感知山地城市滨江界面眼动实验

高分辨MR血管壁成像鉴别穿支型与其他亚型基底动脉缺血性脑卒中

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中国医学影像技术 2025年第1期41卷 50-54页

作者：罗丹饶忠亮肖新兰南昌大学第二附属医院医学影像中心江西南昌330006 智能医学影像江西省重点实验室江西南昌330006 南昌市人民医院放射科江西南昌330009

目的观察高分辨血管壁成像(HR-VWI)鉴别穿支型与其他亚型基底动脉(BA)缺血性脑卒中的价值。方法回顾性分析147例后循环缺血性卒中,根据MRI所见及中国缺血性卒中亚型(CISS)分型将其分为穿支组(穿支型BA粥样硬化,n=57)与多机制组(动脉到... 详细信息

目的观察高分辨血管壁成像(HR-VWI)鉴别穿支型与其他亚型基底动脉(BA)缺血性脑卒中的价值。方法回顾性分析147例后循环缺血性卒中,根据MRI所见及中国缺血性卒中亚型(CISS)分型将其分为穿支组(穿支型BA粥样硬化,n=57)与多机制组(动脉到动脉栓塞和/或低灌注,n=90);比较组间临床资料、HR-VWI及MR血管成像参数;将差异有统计学意义者纳入logistic回归分析,并据以构建模型;绘制受试者工作特征曲线,计算曲线下面积(AUC),评估模型鉴别穿支型与其他亚型BA缺血性脑卒中的效能。结果穿支组罹患糖尿病(DM)及背侧斑块占比高于、腹侧斑块占比低于多机制组(P均0.05)。DM及背侧斑块均为穿支型BA粥样硬化的独立危险因素,腹侧斑块为其独立保护因素(P均<0.05);以之构建的模型鉴别穿支型与其他亚型BA缺血性脑卒中的敏感度、特异度及AUC分别为82.46%、70.00%及0.839。结论HR-VWI可用于鉴别穿支型与其他亚型BA缺血性脑卒中。

关键词：卒中基底动脉磁共振成像

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贵州茅台酒地理标志品牌价值测量分析

中国酿造 2025年第1期44卷 303-306页

作者：王凯罗丹童俊湖北工程学院经济与管理学院湖北孝感432100 茅台学院工商管理系贵州遵义564500

该研究聚焦贵州茅台酒这一地理标志品牌,通过改进的Interbrand模型对其品牌价值进行测量和分析,旨在为酒类地理标志品牌的建设与管理提供理论支持和实践参考。基于文献综述和实证分析,结合财务视角、市场视角和消费者视角,构建了包含预... 详细信息

该研究聚焦贵州茅台酒这一地理标志品牌,通过改进的Interbrand模型对其品牌价值进行测量和分析,旨在为酒类地理标志品牌的建设与管理提供理论支持和实践参考。基于文献综述和实证分析,结合财务视角、市场视角和消费者视角,构建了包含预期收益、品牌作用指数、消费者溢价指数及品牌乘数的评估体系。通过问卷调查、专家评分及多元线性回归方法,测得贵州茅台酒地理标志品牌价值为1 338.48亿元。研究发现,地理标志对品牌价值的贡献显著,但管理制度和消费者认知度仍有待提升。该研究不仅为地理标志品牌的价值评估提供了新的方法论,也为提升地理标志品牌的市场竞争力和文化影响力提供了可行路径。

关键词：地理标志品牌贵州茅台酒品牌价值评估 Interbrand模型

毕节市市售鱼腥草中重金属含量分布特征及健康风险评价

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食品安全导刊 2025年第1期 83-86页

作者：罗丹毕节市疾病预防控制中心贵州毕节551700

以毕节市市售15份新鲜鱼腥草(根)和5份鱼腥草(叶)为研究对象,分析鱼腥草中4种重金属(Cd、Hg、As和Pb)含量分布特征并进行健康风险评价。结果表明,同一植株中,鱼腥草(叶)中Pb含量均高于鱼腥草(根),鱼腥草(叶)中Cd、As含量均低于鱼腥草(根... 详细信息

以毕节市市售15份新鲜鱼腥草(根)和5份鱼腥草(叶)为研究对象,分析鱼腥草中4种重金属(Cd、Hg、As和Pb)含量分布特征并进行健康风险评价。结果表明,同一植株中,鱼腥草(叶)中Pb含量均高于鱼腥草(根),鱼腥草(叶)中Cd、As含量均低于鱼腥草(根);2份样品分别受到Pb和Cd的轻度污染,样品均未受到As和Hg的污染,6份样品的内梅罗污染指数为警戒级;鱼腥草每日最大推荐摄入量为245 g;单一重金属的膳食健康风险指数和4种重金属的复合健康风险指数均小于1。鱼腥草中4种重金属污染水平较低,食用毕节市市售鱼腥草后无明显健康风险。

关键词：鱼腥草重金属健康风险安全摄入量

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耐暗影水性聚丙烯酸酯乳液压敏胶黏剂的制备

精细化工 2025年第1期42卷 215-223页

作者：罗丹王志政张耘瑞李昌诚中国海洋大学海洋化学理论与工程技术教育部重点实验室山东青岛266100 青岛海誉新材料有限公司山东青岛266000

以丙烯酸羟乙酯(HEA)、丙烯酸(AA)、丙烯酸丁酯(BA)为反应单体,采用半连续种子乳液聚合法合成了水性聚丙烯酸酯乳液,将其进行后处理制备成乳液压敏胶黏剂。采用FTIR、TEM、TG对样品进行了表征,对其粒径、黏度进行了测试。考察了引发剂(... 详细信息

以丙烯酸羟乙酯(HEA)、丙烯酸(AA)、丙烯酸丁酯(BA)为反应单体,采用半连续种子乳液聚合法合成了水性聚丙烯酸酯乳液,将其进行后处理制备成乳液压敏胶黏剂。采用FTIR、TEM、TG对样品进行了表征,对其粒径、黏度进行了测试。考察了引发剂(过硫酸铵)用量(以反应单体总质量计,下同)、搅拌转速、反应温度和保温时间对聚丙烯酸酯乳液和乳液压敏胶黏剂性能的影响,探究了外加交联剂种类和用量(以聚丙烯酸酯乳液的质量计,下同)、真空处理时间对乳液压敏胶黏剂性能的影响。结果表明,引发剂用量0.4%、搅拌转速700~800 r/min、反应温度85℃、保温时间2 h条件下制备的聚丙烯酸酯乳液(PSA-1乳液)及乳液压敏胶黏剂PSA-1的各项性能较好;以氮丙啶为外加交联剂,其用量为1.0%和1.5%时,乳液压敏胶黏剂的耐暗影性能较优异;真空处理PSA-1乳液60 min时制备的乳液压敏胶黏剂PSA-1-60同时具有较优异的黏结性能及耐暗影性能,其初黏力为25#,180°剥离强度为1.85 N/cm,测试镜面板表面无可见暗影。

关键词：乳液聚合聚丙烯酸乳液压敏胶黏剂表面保护膜耐暗影黏合剂

RGS22 maintains the physiological function of ependymal cells to prevent hydrocephalus

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Science China(Life Sciences) 2025年第2期68卷 441-453页

作者： Xue Pang Lin Gu Qiu-Ying Han Jia-Qing Xing Ming Zhao Shao-Yi Huang Jun-Xi Yi Jie Pan Hao Hong Wen Xue Xue-Qing Zhou Zhi-Hui Su Xin-Ran Zhang Li-Ming Sun Shao-Zhen Jiang dan luo Ling Chen Zheng-Jie Wang Yu Yu Tian Xia Xue-Min Zhang Ai-Ling Li Tao Zhou Hong Cai Tao Li Nanhu Laboratory National Center of Biomedical AnalysisBeijing 100039China School of Basic Medical Sciences Fudan UniversityShanghai 200032China Department of Basic Medical Sciences School of MedicineTsinghua UniversityBeijing 100084China

Ependymal cells line the wall of cerebral ventricles and ensure the unidirectional cerebrospinal fluid(CSF)flow by beating their motile cilia *** ependymal denudation or ciliary dysfunction causes ***,we report that the deficiency of regulator of Gprotein signaling 22(RGS22)results in severe congenital hydrocephalus in both mice and ***,RGS22 is specifically expressed in ependymal cells within the *** conditional knock-out mice,we further demonstrate that the deletion of Rgs22 exclusively in nervous system is sufficient to induce ***,we show that Rgs22 deficiency leads to the ependymal denudation and impaired *** phenomenon can be attributed to the excessive activation of lysophosphatidic acid receptor(LPAR)signaling under Rgs22^(-/-)condition,as the LPAR blockade effectively alleviates hydrocephalus in Rgs22^(-/-)***,our findings unveil a previously unrecognized role of RGS22 in the central nervous system,and present RGS22 as a potential diagnostic and therapeutic target for hydrocephalus.

关键词： RGS22 hydrocephalus ependymal cells