检索结果-南通市图书馆

Journal of Systems Engineering and Electronics 2024年第3期35卷 666-678页

作者： TANG Jun qin wanting PAN qingtao LAO Songyang College of Systems Engineering National University of Defense TechnologyChangsha 410000China

Natural events have had a significant impact on overall flight activity,and the aviation industry plays a vital role in helping society cope with the impact of these *** one of the most impactful weather typhoon seasons appears and continues,airlines operating in threatened areas and passengers having travel plans during this time period will pay close attention to the development of tropical *** paper proposes a deep multimodal fusion and multitasking trajectory prediction model that can improve the reliability of typhoon trajectory prediction and reduce the quantity of flight scheduling *** deep multimodal fusion module is formed by deep fusion of the feature output by multiple submodal fusion modules,and the multitask generation module uses longitude and latitude as two related tasks for simultaneous *** more dependable data accuracy,problems can be analysed rapidly and more efficiently,enabling better decision-making with a proactive versus reactive *** multiple modalities coexist,features can be extracted from them simultaneously to supplement each other’s *** actual case study,the typhoon Lichma that swept China in 2019,has demonstrated that the algorithm can effectively reduce the number of unnecessary flight cancellations compared to existing flight scheduling and assist the new generation of flight scheduling systems under extreme weather.

关键词： flight scheduling optimization deep multimodal fusion multitasking trajectory prediction typhoon weather flight cancellation prediction reliability

雪旺细胞来源的外泌体miR-21通过靶向SPRY2促进大鼠坐骨神经损伤后修复的研究

在线全文

学校读者我要写书评

暂无评论

中国康复医学杂志 2024年第6期39卷 767-774页

作者：田明月杨溢铎覃琬婷朱晶国海东邵水金上海中医药大学中西医结合学院人体解剖教研室上海市201203

目的:研究高表达miR-21的雪旺细胞(Schwann cells,SC)来源外泌体对坐骨神经损伤(sciatic nerve injury,SNI)的修复作用及机制。方法:分别采用空载慢病毒和高表达miR-21的慢病毒感染SC株,收集SC上清外泌体并进行鉴定。采用神经断端吻合... 详细信息

目的:研究高表达miR-21的雪旺细胞(Schwann cells,SC)来源外泌体对坐骨神经损伤(sciatic nerve injury,SNI)的修复作用及机制。方法:分别采用空载慢病毒和高表达miR-21的慢病毒感染SC株,收集SC上清外泌体并进行鉴定。采用神经断端吻合术建立SNI大鼠模型,术后随机分为模型组、SC来源外泌体组和高表达miR-21的SC来源外泌体组(n=10)。其中,SC来源外泌体组和高表达miR-21的SC来源外泌体组分别采用体外收集的外泌体局部注射进行治疗,3周后行为学实验检测神经功能恢复,免疫荧光染色评价SNI后轴突髓鞘再生,RT-q PCR检测血清外泌体miR-21及神经组织中miR-21和SPRY2的表达水平,双荧光素酶报告基因实验体外验证miR-21和SPRY2之间的靶向互作。结果:与模型组相比,其余各组大鼠坐骨神经功能和神经再生情况均出现明显改善,RT-q PCR结果显示血清外泌体及神经组织中miR-21的表达水平显著升高,神经组织中SPRY2的表达水平显著降低,其中高表达miR-21的SC细胞来源外泌体组较SC来源外泌体组变化更显著;双荧光素酶报告基因实验表明miR-21靶向调节SPRY2的表达。结论:高表达miR-21的SC来源外泌体通过靶向SPRY2显著促进SNI后修复。

关键词：雪旺细胞外泌体 miR-21 坐骨神经损伤功能恢复神经再生

Drying kinetics of soy protein isolate-corn starch film during preparation and its moisture adsorption characteristics during storage

在线全文

学校读者我要写书评

暂无评论

粮油科技:英文版 2023年第3期6卷 120-126页

作者： Tingwei Zhu Jinyu Yang wanting qin Yadong Tian Yingying Wang Xingfeng Guo College of Food Science and Engineering Henan University of TechnologyZhengzhou 450001China

To better understand the mass transfer process of moisture in the soy protein isolate-corn starch(SPI-CS)films during preparation and storage process,the drying kinetics model of SPI-CS films with different formation conditions during the drying process and the moisture adsorption characteristics of the SPI-CS films under different humidity conditions were *** the range of experimental conditions,the moisture migration rule in the SPI-CS films during the drying preparation was combined with the Page model which was expressed as MR=exp(-kt^(n)).It was found that the adsorption equilibrium needed shorter time(about 3 h)when the SPI-CS films existed in the environment with lower humidity(RH<54%).Additionally,the secondorder adsorption kinetic equation was successful to describe the moisture adsorption characteristic of the SPICS films during storage under different humidity conditions.

关键词： Soy protein isolate Corn starch Film Drying kinetics Moisture

A third dose of inactivated SARS-CoV-2 vaccine induces robust antibody responses in people with inadequate response to two-dose vaccination

在线全文

学校读者我要写书评

暂无评论

National Science Review 2022年第7期9卷 14-16页

作者： Taicheng Zhou Tianpei Shi Ao Li Lingzhi Zhu Xinshuai Zhao Naiyin Mao wanting qin Hanfang Bi Mei Yang Muxian Dai Fengwei Liu Rong Wang Wei Su Liang Zhang Wenbo Xu Jia Wei Zijie Zhang Central Laboratory and Liver Disease Research Center The Affiliated Hospital of Yunnan UniversityYunnan University State Key Laboratory for Conservation and Utilization of Bio-resource and School of Life Sciences Yunnan University State Key Laboratory of Genetic Resources and Evolution and Yunnan Laboratory of Molecular Biology of Domestic Animals Kunming Institute of Zoology Chinese Academy of Sciences College of Life Science University of Chinese Academy of Sciences NHC Key Laboratory of Medical Virology and Viral Diseases National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention

Mass application of SARS-CoV-2 vaccines is a major approach to reduce SARS-CoV-2 transmission and COVID-19 symptoms *** inactivated SARS-CoV-2 vaccine is one of the most widely administered vaccine types in many countries,with over 2 billion doses administered as of 31 August ***, clinical trials estimate 65%-85%protection from detectable symptoms for inactivated SARS-C oV-2 vaccines [1-4],

关键词：

Unraveling the stereoscopic gene transcriptional landscape of zebrafish using Fish SED,a fish spatial expression database with multispecies scalability

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2024年第4期67卷 843-846页

作者： Cheng Guo Weidong Ye Danying Cao Mijuan Shi wanting Zhang Yingyin Cheng Yaping Wang Xiao-qin Xia Institute of Hydrobiology Chinese Academy of SciencesWuhan 430072China College of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijingChina The Innovative Academy of Seed Design Chinese Academy of SciencesBeijing 100101China

Dear Editor,The expression profile demonstrates how each gene was expressed in the target tissue or cell at a given *** heterogeneity is a biological concept characterized by the presence of numerous cells with varying functions and expression profiles within organ/tissue *** is also cell-to-cell signaling,which implies that the extracellular environment and spatial location influence intracellular transcription,resulting in spatial heterogeneity of gene expression within the same cell type.

关键词： landscape fish database

在线全文

学校读者我要写书评

暂无评论

基于变分自编码器的飓风轨迹异常检测方法

系统仿真学报 2021年第9期33卷 2191-2201页

作者：秦婉亭老松杨汤俊卢聪国防科技大学系统工程学院湖南长沙410073

飓风常会引起无法估计的人身和经济损失,飓风轨迹异常检测可以为灾情提供辅助信息或异常告警。从深度学习的角度出发,提出了基于变分自编码器的飓风轨迹异常检测方法(Variational Auto-Encoder Outlier Detection,VAEOD)。利用滑动窗口... 详细信息

飓风常会引起无法估计的人身和经济损失,飓风轨迹异常检测可以为灾情提供辅助信息或异常告警。从深度学习的角度出发,提出了基于变分自编码器的飓风轨迹异常检测方法(Variational Auto-Encoder Outlier Detection,VAEOD)。利用滑动窗口将长度不等的轨迹序列变成等长的子轨迹序列作为变分自编码器的输入,通过变分自编码器训练轨迹重构模型,将重构的轨迹与输入的轨迹通过平行、垂直和角度距离进行对比找出异常的轨迹段。通过真实的飓风数据进行仿真实验发现,VAEOD方法比经典的轨迹异常值检测算法(Trajectory Outlier Detection Algorithm,TRAOD)检测的结果更合理,实用性更强。

关键词：变分自编码器空间距离滑动窗口异常检测

Efficient epoxidation of propylene over non-noble nickel-based catalyst promoted by alkali metals

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2024年

作者： Wenqian Li wanting Li Xinxin Cao Longfei Chen Yibo qin Yanfeng Zhu Yanfei Zhang Gai Miao Lingzhao Kong Jiong Li Xinqing Chen State Key Laboratory of Low Carbon Catalysis and Carbon Dioxide Utilization CAS Key Laboratory of Low-carbon Conversion Science and Engineering Shanghai Advanced Research Institute Chinese Academy of Sciences University of Chinese Academy of Sciences School of Environmental Science and Engineering Suzhou University of Science and Technology Shanghai Synchrotron Radiation Facility Zhangjiang National Lab Shanghai Advanced Research Institute Chinese Academy of Sciences

The application of non-noble metal catalysts in the catalytic direct gas-phase epoxidation of propylene with H2and O2to produce propylene oxide is valuable and *** introduction of alkali metal promoters is one of the effective methods to improve the catalytic activity of ***,a series of alkali metal （Li,Na,K,Rb,and Cs）-promoted Ni/TS-1 catalysts were prepared to deeply understand the effect of alkali metals on the structure-activity relationship for gas-phase epoxidation of *** them,the Na-Ni/TS-1 catalyst exhibits the highest catalytic activity (propylene conversion of 7.35%and POformation rate of 157.9 g h-1kg-1cat) and the best stability （long-term stability exceeding 140 h at 200°C）.X-ray absorption and photoelectron spectroscopy revealed that the electronic structure of Ni can be tuned by the addition of alkali metal ***3-TPD-MS,CO2-TPD-MS,and C3H6-TPD-MS results indicate that the acidity of the catalyst can also be adjusted by the introduction of alkali metal,whereas the Na-Ni/TS-1 catalyst exhibits the strongest C3H6adsorption ***,the suitable acid-base properties,unique electronic properties of Ni species,and the strongest propylene adsorption capacity resulted in improved propylene gas-phase epoxidation activity of Na-Ni/TS-1 *** study not only provides a new strategy for the practical application of nickel-based catalysts in the gas-phase epoxidation of propylene but also provides insights into the promoting effect of alkali metals.

关键词：

巨噬细胞募集和极化在电针抗炎作用中的研究进展

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国免疫学杂志 2023年第10期39卷 2071-2075,I0004,I0005页

作者：田明月覃琬婷朱晶邵水金(指导) 上海中医药大学中西医结合学院人体解剖教研室上海201203

巨噬细胞是一种固有免疫细胞,其招募、聚集及表型变化与炎症发生发展和转归密切相关。研究表明电针通过调节巨噬细胞募集和极化发挥有效的抗炎作用,广泛用于各种炎症性疾病治疗。本文在介绍巨噬细胞募集和极化影响炎症反应的基础上,重... 详细信息

巨噬细胞是一种固有免疫细胞,其招募、聚集及表型变化与炎症发生发展和转归密切相关。研究表明电针通过调节巨噬细胞募集和极化发挥有效的抗炎作用,广泛用于各种炎症性疾病治疗。本文在介绍巨噬细胞募集和极化影响炎症反应的基础上,重点阐述了电针通过调控巨噬细胞在不同系统疾病中的抗炎作用,并总结了电针调节巨噬细胞极化的潜在细胞和分子机制,为电针治疗炎症性疾病提供科学的理论依据。

关键词：电针炎症巨噬细胞募集极化

维普期刊数据库博看期刊

基于鲁棒亚像素卷积神经网络的DEM超分辨率重建

在线全文

学校读者我要写书评

暂无评论

智能安全

智能安全 2023年第4期2卷 1-13页

作者：张瑞辰秦婉亭军事科学院国防科技创新研究院北京100071

数字地形模型(digital elevation model,DEM)是描述地球科学领域纵横表层曲面的基础数据模型之一,广泛应用于航天工程、海洋测绘、几何测量等领域。本文引入亚像素卷积神经网络模型进行DEM超分辨率重建,分析了不同训练样本定制策略对DE... 详细信息

数字地形模型(digital elevation model,DEM)是描述地球科学领域纵横表层曲面的基础数据模型之一,广泛应用于航天工程、海洋测绘、几何测量等领域。本文引入亚像素卷积神经网络模型进行DEM超分辨率重建,分析了不同训练样本定制策略对DEM超分辨率重建的影响,并提出了基于训练样本优化的鲁棒亚像素卷积神经网络。首先,基于Adam优化模型,分析了6类定制化训练数据集策略对训练网络的影响,提出了训练数据集的最佳定制方案,提升了算法的整体效率。其次,利用真实的DEM数据进行实验分析,通过与传统地统计学方法(双三次插值、最近邻插值和双线性插值)进行对比,结果表明该网络有效提高了DEM超分辨率重建的精度;最后,探讨了损失函数对网络训练效率的影响,给出了损失函数优化的建议。同时,作为卷积神经网络的衍生模型,基于训练样本优化的鲁棒亚像素卷积神经网络模型进一步丰富了卷积神经网络在DEM数据处理领域中的应用。

关键词：超分辨率生成对抗网络地形曲面建模深度学习

在线全文

学校读者我要写书评

暂无评论

基于深度学习的眼周识别方法研究

计算机应用与软件 2024年第6期41卷 186-193页

作者：秦涛王云龙孙哲南周琬婷湖南工业大学计算机学院湖南株洲412007 中国科学院自动化研究所模式识别国家重点实验室智能感知与计算研究中心北京100190 中国科学院大学人工智能学院北京100049

为了提高眼周识别性能,提出一种基于深度卷积神经网络的眼周识别方法(PeriocularNet)。PeriocularNet具有16层卷积神经网络,融入了残差学习模块,使用了ArcFace损失函数;在训练策略上引入数据增强,以解决训练过程中产生的过拟合。在UBIPr... 详细信息

为了提高眼周识别性能,提出一种基于深度卷积神经网络的眼周识别方法(PeriocularNet)。PeriocularNet具有16层卷积神经网络,融入了残差学习模块,使用了ArcFace损失函数;在训练策略上引入数据增强,以解决训练过程中产生的过拟合。在UBIPr、UBIRIS.V2数据集上进行实验,实验结果表明所提方法的识别EER值分别达到1.9%和7.9%,相较于经典的眼周识别方法取得了更好的眼周识别性能。另外,为了验证端到端的眼周识别方法中眉毛区域特征对眼周识别性能的影响,建立两个涉及三种眉毛形态的眼周数据集。通过实验验证,保持眉毛区域特征不变的眼周数据识别EER比其他两种去掉眉毛特征的情况更低,表明眉毛区域特征能够提高眼周识别性能。

关键词：生物特征识别眼周识别深度学习卷积神经网络眉毛区域