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Molecular Plant 2014年第3期7卷 567-569页

作者： Justin S. Williams Christopher A. Natale NingWang Shu Li Tarah R. Brubaker penglin sun Teh-hui Kao Department of Biochemistry and Molecular Biology The Pennsylvania State University University Park PA 16802 USA Intercollege Graduate Degree Program in Plant Biology The Pennsylvania State University University Park PA 16802 USA

Dear Editor, Petunia possesses self-incompatibility （SI）, by which pis- tils reject self-pollen but accept non-self pollen for fertili- zation （de Nettancourt, 2001; Iwano and Takayama, 2012）. Genes that regulate self-/non-self-recognition between pol- len and pistil are located at the highly polymorphic S-locus. An S-haplotype contains the pistil-specific S-RNase gene that regulates pistil specificity （Lee et al., 1994）. The first S-locus F-box （SLIO gene was identified in Antirrhinum hispanicum by Lai et al. （2002）, and subsequently Sijacic et al.

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基于直觉模糊集的膨胀土胀缩等级分类

地下空间与工程学报 2019年第S1期15卷 182-187页

作者：孙彭林中建三局集团有限公司工程总承包公司武汉430064

膨胀土的胀缩性受诸多不确定性因素的影响,然而对膨胀土胀缩等级的分类是一个复杂的不确定性系统分析问题,膨胀土胀缩等级的合理分类对工程设计及施工具有重要的指导意义。本文基于直觉模糊集理论,给出了膨胀土分类指标的一种采用隶属... 详细信息

膨胀土的胀缩性受诸多不确定性因素的影响,然而对膨胀土胀缩等级的分类是一个复杂的不确定性系统分析问题,膨胀土胀缩等级的合理分类对工程设计及施工具有重要的指导意义。本文基于直觉模糊集理论,给出了膨胀土分类指标的一种采用隶属度与非隶属度刻画不确定性问题的分析方法,并结合两种权重方法确定的指标权重提出了分类指标的直觉模糊权重确定方法,探讨了具有模糊性权重的膨胀土胀缩等级分类模型。通过实例验证及应用的研究,结果表明:该分类模型对膨胀土胀缩等级分类是有效可行的,且取得了良好效果,同时也解决了在以往分类方法中无法体现指标权重模糊性的缺陷。

关键词：直觉模糊集膨胀土胀缩等级分类模糊性权重

优化Mask-RCNN的高分遥感影像建筑物提取

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遥感信息 2022年第3期37卷 1-6页

作者：林娜黄韬孙鹏林王玉莹重庆交通大学智慧城市学院重庆400074

针对从背景复杂、目标密集的高分遥感影像上提取建筑物精度较低的问题,提出了一种基于优化Mask-RCNN的高分遥感影像建筑物提取算法。优化算法以ResNet-50为特征提取主干网络,通过添加更多的横向连接以及自下而上、自上而下路径的方式优... 详细信息

针对从背景复杂、目标密集的高分遥感影像上提取建筑物精度较低的问题,提出了一种基于优化Mask-RCNN的高分遥感影像建筑物提取算法。优化算法以ResNet-50为特征提取主干网络,通过添加更多的横向连接以及自下而上、自上而下路径的方式优化FPN,提高算法的特征提取能力,并利用Soft-NMS优化原始NMS算法改善提取结果。利用自制的重庆市渝北区高分遥感影像建筑物数据集,采用交叉验证方法验证其在不同训练集与测试集上的稳定性,同时比较优化前后算法的提取性能。实验结果表明,优化算法平均精确率为88.4%,对比原始算法提高了4.9个百分点,对实现遥感影像建筑物高精度自动提取具有一定的参考意义。

关键词：深度学习 Mask-RCNN 建筑物提取优化FPN 优化NMS

多尺度特征孪生神经网络的建筑物变化检测方法

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测绘科学 2022年第5期47卷 185-192页

作者：林娜孙鹏林王玉莹黄韬重庆交通大学智慧城市学院重庆400074 重庆市地理信息和遥感应用中心重庆401147

针对从多时相高分辨率遥感影像上做建筑物变化检测出现的细节特征丢失、变化检测结果模糊的问题,该文提出了一种基于多尺度特征孪生神经网络的遥感影像建筑物变化检测算法。以孪生神经网络为基础网络,将Inception v2结构加入网络特征提... 详细信息

针对从多时相高分辨率遥感影像上做建筑物变化检测出现的细节特征丢失、变化检测结果模糊的问题,该文提出了一种基于多尺度特征孪生神经网络的遥感影像建筑物变化检测算法。以孪生神经网络为基础网络,将Inception v2结构加入网络特征提取层中,获得遥感影像多尺度特征,并对其进行多特征融合,更好地还原建筑目标的细节信息。与全卷积孪生神经网络网络相比,在WHU和LEVIR-CD建筑变化数据集下的实验结果表明,overall accuracy、F1-score和Kappa系数指标都有所提高,本文的多尺度孪生神经网络方法更利于建筑物变化检测,并获得了良好的测试结果。

关键词：变化检测多尺度特征卷积孪生神经网络深度学习

Fatigue Damage Mechanism of AL6XN Austenitic Stainless Steel at High Temperatures

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Acta Metallurgica Sinica(English Letters) 2020年第6期33卷 799-807页

作者： Yanyan Hong penglin Gao Hongjia Li Changsheng Zhang Guangai sun Key Laboratory of Neutron Physics Institute of Nuclear Physics and ChemistryCAEPMianyang 621900China Key Laboratory for Anisotropy and Texture of Materials School of Materials Science and EngineeringNortheastern UniversityShenyang 110004China

By the combination of transmission electron microscope, neutron diffraction and small-angle neutron scattering methods, mechanical fatigue behavior of AL6XN austenitic stainless steel was investigated in the temperature range of 400–600 °C. At 400 °C, in addition to the occurrence of dynamic strain aging, the formation of short-range order was evidenced from the forbidden electron diffraction spot of 1/3 {422} in face-centered cubic(fcc) structure viewed down [111] zone axis, which facilitate the planar slip mode of dislocation and result in the work hardening during the fatigue deformation. The fatigue damage is mainly dominated by the accumulation of planar slip band and the interaction among various slip systems. With increasing temperature, precipitates of chi phase, Laves phase and sigma phase were formed during the fatigue tests at 500 and 600 °C. An increase in precipitation content at 600 °C has also been confirmed by both scanning electron microscope and small-angle neutron scattering analysis. The dislocation pileup originating from the uncoordinated deformation between precipitate and austenitic matrix is an important fatigue damage leading to crack. The continuous cycle softening behavior was also observed on the fatigue curve at 600 °C, which is considered to be caused by dynamic recovery.

关键词： Precipitates Low-cycle fatigue Austenitic stainless steel Small-angle neutron scattering Planar slip bands

Impact of ocean data assimilation on the seasonal forecast of the 2014/15 marine heatwave in the Northeast Pacific Ocean

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 24-31页

作者： Tiantian Tang Jiaying He Huihang sun Jingjia Luo Institute for Climate and Application Research(ICAR)/Key Laboratory of Meteorological Disaster Nanjing University of Information Science and TechnologyNanjingChina

A remarkable marine heatwave,known as the“Blob”,occurred in the Northeast Pacific Ocean from late 2013 to early 2016,which displayed strong warm anomalies extending from the surface to a depth of 300 *** study employed two assimilation schemes based on the global Climate Forecast System of Nanjing University of Information Science(NUIST-CFS 1.0)to investigate the impact of ocean data assimilation on the seasonal prediction of this extreme marine *** sea surface temperature(SST)nudging scheme assimilates SST only,while the deterministic ensemble Kalman filter(EnKF)scheme assimilates observations from the surface to the deep *** latter notably improves the forecasting skill for subsurface temperature anomalies,especially at the depth of 100-300 m(the lower layer),outperforming the SST nudging *** excels in predicting both horizontal and vertical heat transport in the lower layer,contributing to improved forecasts of the lower-layer warming during the *** improvements stem from the assimilation of subsurface observational data,which are important in predicting the upper-ocean *** results suggest that assimilating ocean data with the EnKF scheme significantly enhances the accuracy in predicting subsurface temperature anomalies during the Blob and offers better understanding of its underlying mechanisms.

关键词： Seasonal forecast Ocean data assimilation Marine heatwave Subsurface temperature

In situ polymerization of poly(3,4-ethylenedioxythiophene)protective layer towards stable zinc anode

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Nano Research 2025年第1期18卷 382-394页

作者： Debin Luo Peng Zhou Xiaowei Lv Panpan sun Xiaohua sun Hewei Zhao College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang 443002China Hubei Three Gorges Laboratory Yichang 443007China School of Chemistry Beihang UniversityBeijing 100191China

Aqueous zinc-ion devices are considered promising candidates for energy storage due to their high safety,low cost and relatively high energy ***,the dendrite growth,hydrogen evolution reaction(HER)and corrosion of the zinc anode significantly limit the development of Zn-ion ***,an inexpensive poly(3,4-ethylenedioxythiophene)(PEDOT)protective layer was constructed in situ on the Zn surface using electropolymerization to suppress dendrite growth and side reactions,thereby enhancing the reversibility of *** and theoretical calculations revealed that this hydrophilic protective layer promotes the desolvation process of hydrated Zn^(2+)and facilitates the transport of zinc ions,thus improving the thermodynamic and kinetic properties of Zn^(2+)deposition and inhibiting interfacial side ***,the optimized PEDOT@Zn symmetric battery exhibited a cycling stability exceeding 1250 h at 0.5 mA·cm^(-2)and 0.25 mAh·cm^(-2),with a significantly reduced overpotential(from 91.8 to 35 mV).With the assistance of the PEDOT protective layer,the PEDOT@Zn//Cu battery maintained approximately 99.5%Coulombic efficiency after 450 ***-situ scanning electron microscopy(SEM)and in situ optical microscopy characterizations further confirmed that the PEDOT protective layer can effectively suppress the growth of zinc ***,the Zn-ion capacitors assembled by the PEDOT@Zn and activated carbon also demonstrated outstanding cycling stability.

关键词： zinc-ion devices zinc anode poly(3 4-ethylenedioxythiophene)(PEDOT) dendrite desolvation process

Boosting bidirectional sulfur conversion enabled by introducing boron-doped atoms and phosphorus vacancies in Ni2P for lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： Lin Peng Yu Bai Hang Li Meixiu Qu Zhenhua Wang Kening sun Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing Key Laboratory of Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology

Lithium-sulfur （Li-S） batteries have gained great attention due to the high theoretical energy density and low cost,yet their further commercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni2P by concurrently introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides （LiPSs） as well as expediting the bidirectional conversion kinetics of sulfur ***,theoretical calculations reveal that the incorporation of B-doped atoms and P vacancies in Ni2P selectively promotes Li2S dissolution and nucleation ***,the Li-S batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 C and high areal capacity of 8.03 mA h cm-2under E/S of 5μL mg-1and sulfur loading of 7.20 mg *** work elucidates that introducing heteroatom and vacancy in metal phosphide collaboratively regulates the electron structure to accelerate bidirectional sulfur conversion.

关键词： Lithium sulfur batteries

Brain endothelial cyclic GMP-AMP synthase(cGAS)-stimulator of interferon genes(STING)signaling pathway in aging and neurodegeneration

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Neural Regeneration Research 2025年第7期20卷 2005-2007页

作者： Bryan sun Lulin Li Jian Luo Palo Alto Veterans Institute for Research VA Palo Alto Health Care SystemPalo AltoCAUSA Polytrauma System of Care VA Palo Alto Health Care SystemPalo AltoCAUSA

The cyclic GMP-AMP synthase(cGAS)-stimulator of interferon genes(STING)signaling pathway has emerged as a key mediator of *** current studies primarily attribute its effects to neurons and glial cells,emerging research suggests that cGAS-STING signaling may play a critical role in cerebral vasculature,particularly in brain endothelial ***,studying the role 7of inflammation caused by the cGAS-STING pathway in brain endothelial cells could provide a more comprehensive understanding of neuroinflammatory disease and new avenues for therapeutic ***,we review the multifaceted role of global cGAS-STING signaling in various neurological and neuroinflammatory diseases and the potential contribution of cGAS-STING in brain endothelial cells.

关键词： stimulator interferon inflammation

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锯齿型内翅式传热管热交换器的研发

柴油机 2007年第1期29卷 34-36页

作者：林霖孙健陆晓玲陈晓华张必强孙朋林七一一研究所上海200011 海军装备部北京100073

介绍了某型柴油机配套滑油冷却器的改进设计,采用新型锯齿型内翅式传热管冷却器替代原扁管式滑油冷却器,性能试验证明:改进设计后的滑油冷却器的主要性能均优于前者,解决了原扁管式滑油冷却器使用寿命短,可靠性差的问题。

关键词：热交换器滑油冷却器内翅管扁管