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CBA: multi source fusion model for fast and intelligent target intention identification

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Journal of Systems Engineering and Electronics 2024年第2期35卷 406-416页

作者： WAN Shichang LI Qingshan wang xuhua LU Nanhua School of Computer Science and Technology Xidian UniversityXi’an 710071China School of Mathematics and Computer Application Shangluo UniversityShangluo 726000China

How to mine valuable information from massive multisource heterogeneous data and identify the intention of aerial targets is a major research focus at present. Aiming at the longterm dependence of air target intention recognition, this paper deeply explores the potential attribute features from the spatiotemporal sequence data of the target. First, we build an intelligent dynamic intention recognition framework, including a series of specific processes such as data source, data preprocessing,target space-time, convolutional neural networks-bidirectional gated recurrent unit-atteneion (CBA) model and intention recognition. Then, we analyze and reason the designed CBA model in detail. Finally, through comparison and analysis with other recognition model experiments, our proposed method can effectively improve the accuracy of air target intention recognition,and is of significance to the commanders’ operational command and situation prediction.

关键词： intention massive data deep network artificial intelligence

Study on the interannual variability of the Kerama Gap transport and its relation to the Kuroshio/Ryukyu Current system

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Acta Oceanologica Sinica 2024年第3期43卷 1-14页

作者： Han Zhou Kai Yu Jianhuang Qin xuhua Cheng Meixiang Chen Changming Dong Key Laboratory of Marine Hazards Forecasting Ministry of Natural ResourcesHohai UniversityNanjing 210003China College of Oceanography Hohai UniversityNanjing 210003China School of Marine Sciences Nanjing University of Information Science and TechnologyNanjing 211800China

An analysis of a 68-year monthly hindcast output from an eddy-resolving ocean general circulation model reveals the relationship between the interannual variability of the Kerama Gap transport(KGT)and the Kuroshio/Ryukyu Current system.The study found a significant difference in the interannual variability of the upstream and downstream transports of the East China Sea-(ECS-)Kuroshio and the Ryukyu Current.The interannual variability of the KGT was found to be of paramount importance in causing the differences between the upstream and downstream ECS-Kuroshio.Additionally,it contributed approximately 37%to the variability of the Ryukyu Current.The interannual variability of the KGT was well described by a two-layer rotating hydraulic theory.It was dominated by its subsurface-intensified flow core,and the upper layer transport made a weaker negative contribution to the total KGT.The subsurface flow core was found to be mainly driven by the subsurface pressure head across the Kerama Gap,and the pressure head was further dominated by the subsurface density anomalies on the Pacific side.These density anomalies could be traced back to the eastern open ocean,and their propagation speed was estimated to be about 7.4 km/d,which is consistent with the speed of the local first-order baroclinic Rossby wave.When the negative(positive)density anomaly signal reached the southern region of the Kerama Gap,it triggered the increase(decrease)of the KGT towards the Pacific side and the formation of an anticyclonic(cyclonic)vortex by baroclinic adjustment.Meanwhile,there is an increase(decrease)in the upstream transport of the entire Kuroshio/Ryukyu Current system and an offshore flow that decreases(increases)the downstream Ryukyu Current.

关键词： Kerama Gap Kuroshio Ryukyu Current OGCM for the Earth Simulator(OFES) hydraulic theory

A Brief Summary of Current Therapeutic Strategies for Spinal Cord Injury

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Engineering 2022年第6期8卷 46-52页

作者： Chun Yao Xin Tang Yuqi Cao xuhua wang Bin Yu Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education&NMPA Key Laboratory for the Research and Evaluation of Tissue Engineering Technology Products Co-Innovation Center of NeuroregenerationNantong UniversityNantong 226001China NHC and CAMS Key Laboratory of Medical Neurobiology MOE Frontier Science Center for Brain Science and Brain-Machine IntegrationSchool of Brain Science and Brain MedicineZhejiang UniversityHangzhou 310003China Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair Affiliated Hospital of Nantong UniversityNantong UniversityNantong 226001China

Spinal cord injury(SCI)is a tremendous disaster in a person’s life.It interrupts the brain-body neuronal circuits,resulting in functional deficits.Pathogenesis of SCI is a progressive and comprehensive event.In clinical trials,attempts to promote nerve regeneration and functional recovery after SCI have met with failures.Recently,with the development of transcriptome sequencing and biomaterials,researchers have struggled to explore novel efficient therapeutic treatments for SCI.Here,we summarize the recent pro-gress that has been made in SCI repair based on the lesion microenvironment,neural circuits,and bioma-terial scaffolds.We also propose several important directions for future research,including targeted-microRNA therapy,blood vessel interventions,and multiple treatment combinations.In short,we hope this review will enlighten researchers in the field and pave the way for SCI therapy.

关键词： Spinal cord injury Microenvironment Neural circuits Biomaterial scaffolds

Viromes of Haemaphysalis longicornis reveal different viral abundance and diversity in free and engorged ticks

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Virologica Sinica 2024年第2期39卷 194-204页

作者： Jian Xiao Xuan Yao xuhua Guan Jinfeng Xiong Yaohui Fang Jingyuan Zhang You Zhang Abulimiti Moming Zhengyuan Su Jiayin Jin Yingying Ge Jun wang Zhaojun Fan Shuang Tang Shu Shen Fei Deng Key Laboratory of Virology and Biosafety and National Virus Resource Center Wuhan Institute of VirologyChinese Academy of SciencesWuhan430071China Hubei Provincial Center for Disease Control and Prevention Wuhan430070China University of Chinese Academy of Sciences Beijing101408China Hubei Jiangxia Laboratory Wuhan430200China Xinjiang Key Laboratory of Vector-borne Infectious Diseases Urumqi830002China Current address:Department of Medical Laboratory The Second Affiliated HospitalHainan Medical UniversityHaikou57000China

Haemaphysalis longicornis ticks,commonly found in East Asia,can transmit various pathogenic viruses,includingthe severe fever with thrombocytopenia syndrome virus(SFTSV)that has caused febrile diseases among humansin Hubei Province.However,understanding of the viromes of H.longicornis was limited,and the prevalence ofviruses among H.longicornis ticks in Hubei was not well clarified.This study investigates the viromes of bothengorged(fed)and free(unfed)H.longicornis ticks across three mountainous regions in Hubei Province from 2019to 2020.RNA-sequencing analysis identified viral sequences that were related to 39 reference viruses belonging tounclassified viruses and seven RNA viral families,namely Chuviridae,Nairoviridae,Orthomyxoviridae,Parvoviridae,Phenuiviridae,Rhabdoviridae,and Totiviridae.Viral abundance and diversity in these ticks were analysed,andphylogenetic characteristics of the Henan tick virus(HNTV),Dabieshan tick virus(DBSTV),Okutama tick virus(OKTV),and Jingmen tick virus(JMTV)were elucidated based on their full genomic sequences.Prevalenceanalysis demonstrated that DBSTV was the most common virus found in individual H.longicornis ticks(12.59%),followed by HNTV(0.35%),whereas JMTV and OKTV were not detected.These results improve our understanding of H.longicornis tick viromes in central China and highlight the role of tick feeding status and geographyin shaping the viral community.The findings of new viral strains and their potential impact on public health raisethe need to strengthen surveillance efforts for comprehensively assessing their spillover potentials.

关键词： Ticks Virome Haemaphysalis longicornis Phylogenetic analysis Viral abundance and diversity

Statistical Process Monitoring Based on Ensemble Structure Analysis

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IEEE/CAA Journal of Automatica Sinica 2024年第8期 1889-1891页

作者： Likang Shi Chudong Tong Ting Lan xuhua Shi the Faculty of Electrical Engineering and Computer Science Ningbo University

Dear Editor,This letter presents a novel process monitoring model based on ensemble structure analysis (ESA). The ESA model takes advantage of principal component analysis (PCA), locality preserving projections (LPP), and multi-manifold projections (MMP) models, and then combines the multiple solutions within an ensemble result through Bayesian inference. In the developed ESA model, different structure features of the given dataset are taken into account simultaneously,the suitability and reliability of the ESA-based monitoring model are then illustrated through comparison.

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A conductive supramolecular hydrogel creates ideal endogenous niches to promote spinal cord injury repair

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Bioactive Materials 2022年第9期7卷 103-119页

作者： Biao Yang Chengzhen Liang Di Chen Feng Cheng Yuang Zhang Shaoke wang Jiawei Shu Xianpeng Huang Jingkai wang Kaishun Xia Liwei Ying Kesi Shi Chenggui wang xuhua wang Fangcai Li Qian Zhao Qixin Chen Department of Orthopedics Surgery The Second Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou310009ZhejiangChina Orthopedics Research Institute of Zhejiang University Hangzhou310009ZhejiangChina Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province Hangzhou310009ZhejiangChina Ningbo Research Institute of Zhejiang University Ningbo315100ZhejiangChina State Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027ZhejiangChina NHC and CAMS Key Laboratory of Medical Neurobiology MOE Frontier Science Center for Brain Research and Brain-Machine IntegrationSchool of Brain Science and Brain MedicineZhejiang UniversityHangzhou310003ZhejiangChina

The current effective method for treatment of spinal cord injury(SCI)is to reconstruct the biological microenvironment by filling the injured cavity area and increasing neuronal differentiation of neural stem cells(NSCs)to repair SCI.However,the method is characterized by several challenges including irregular wounds,and mechanical and electrical mismatch of the material-tissue interface.In the current study,a unique and facile agarose/gelatin/polypyrrole(Aga/Gel/PPy,AGP3)hydrogel with similar conductivity and modulus as the spinal cord was developed by altering the concentration of Aga and PPy.The gelation occurred through non-covalent interactions,and the physically crosslinked features made the AGP3 hydrogels injectable.In vitro cultures showed that AGP3 hydrogel exhibited excellent biocompatibility,and promoted differentiation of NSCs toward neurons whereas it inhibited over-proliferation of astrocytes.The in vivo implanted AGP3 hydrogel completely covered the tissue defects and reduced injured cavity areas.In vivo studies further showed that the AGP3 hydrogel provided a biocompatible microenvironment for promoting endogenous neurogenesis rather than glial fibrosis formation,resulting in significant functional recovery.RNA sequencing analysis further indicated that AGP3 hydrogel significantly modulated expression of neurogenesis-related genes through intracellular Ca2+signaling cascades.Overall,this supramolecular strategy produces AGP3 hydrogel that can be used as favorable biomaterials for SCI repair by filling the cavity and imitating the physiological properties of the spinal cord.

关键词： Conducting polymer Supramolecular hydrogels Biomimetic scaffolds Nerve regeneration Spinal cord injury

管理研究中的质性元分析方法:适用问题、操作策略与应用展望

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管理学报 2024年第1期21卷 148-158页

作者：卫旭华陈义汪光炜兰州大学管理学院兰州市730000 中国人民大学劳动人事学院北京大学心理与认知科学学院

以往管理领域的元分析研究重点关注定量元分析方法的使用,导致众多质性研究结论未得到有效的整理与提炼,而质性元分析作为对质性研究进行整合的方法,能够有效解决以往管理质性研究之间存在的孤岛现象,旨在构建一般性的管理理论。鉴于此... 详细信息

以往管理领域的元分析研究重点关注定量元分析方法的使用,导致众多质性研究结论未得到有效的整理与提炼,而质性元分析作为对质性研究进行整合的方法,能够有效解决以往管理质性研究之间存在的孤岛现象,旨在构建一般性的管理理论。鉴于此,首先,介绍了质性元分析方法的内涵、认识论基础和相较其他研究方法的优势。在此基础上,回顾以往研究,归纳总结了该方法目前的应用现状,包括适用的研究问题和规范的操作策略。最后,从问题、操作和方法3个方面提出了未来管理研究中质性元分析方法的应用前景。

关键词：质性研究定量元分析质性元分析操作策略应用展望

人工智能的影像学分析技术在儿童感染性肺炎中的研究进展

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中华实用儿科临床杂志 2024年第2期39卷 151-155页

作者：陶赟熙葛许华南京医科大学儿科学院南京211116 南京医科大学附属儿童医院急诊/重症医学科南京210008

儿童支气管管腔相对狭窄、肺部间质发育优于弹性组织、纤毛清除能力弱的生理结构使儿童更易发生肺部感染形成肺炎。人工智能(AI)的发展及其在医学领域的应用正在改变传统的疾病诊断、评估及治疗模式。以深度学习为核心的AI越来越多应用... 详细信息

儿童支气管管腔相对狭窄、肺部间质发育优于弹性组织、纤毛清除能力弱的生理结构使儿童更易发生肺部感染形成肺炎。人工智能(AI)的发展及其在医学领域的应用正在改变传统的疾病诊断、评估及治疗模式。以深度学习为核心的AI越来越多应用于儿童肺炎的诊断以及病情预后评估,有利于对患儿进行早期诊断、准确评估病情。除新型冠状病毒肺炎与急性呼吸窘迫综合征外,研究者很少关注其他病毒性肺炎、细菌性肺炎、支原体肺炎、真菌性肺炎,同时目前仍存在数据集少、样本量少、算法不完备等问题,且对于区分肺炎类型、亚型给予的关注度不够,有待改进。未来应建立儿童肺部感染的大样本数据集,开展医学生、医务人员对AI的学习,探索AI在儿童肺部感染中的更多价值,以推动其在诊疗相关临床决策时的辅助作用。

关键词：儿童肺炎人工智能影像分析深度学习

Imaging the western boundary of the Sichuan Craton from multiple geophysical observations

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Journal of Earth Science 2024年

作者： Qihang Yin Xi Xu Xiaodong Yang xuhua Shi Lei Wu Andrew V.Zuza Liu Yang Hefeng Tian Yuanhai Shu Shufeng Yang Nevada Bureau of Mines and Geology University of Nevada China Aero Geophysical Survey and Remote Sensing Center for Natural Resources China Geological Survey School of Earth Sciences Zhejiang University Research Center for Structures in Oil and Gas Bearing Basins Ministry of Education Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of Oceanology Innovation Academy of South China Sea Ecology and Environmental Engineering Chinese Academy of Sciences School of Mechanical and Electrical Engineering Hubei Open University

The boundary between the cratonic and orogenic lithospheres is one of the most significant seismogenic zones characterized by strong lithospheric deformation. As the essential tectonic block bounding the eastern Tibetan Plateau， the Sichuan Craton (SCC) resists the eastward escape of Plateau’s crustal materials， resulting in the uplift of the Songpan-Ganzi Block (SGB) and the crustal deformation of the Longmenshan tectonic belt (LMTB). To uncover the compressional structures and deformational mode of the LMTB and SCC， it is crucial to determine the precise location and geometry of the western boundary of the SCC. To address this issue， the lithospheric properties of the obduction SGB， the underthrusting SCC， and the LMTB were analyzed using a series of geophysical data， including seismic reflection profiles， magnetotellurics， aeromagnetics， gravity， and seismic tomography. The crust of the SGB is characterized by low magnetism， low seismic velocity， low resistivity and low Bouguer gravity， while that of the SCC features non-uniform high magnetism， high seismic velocity， high resistivity and high Bouguer gravity. The LMTB， as the boundary between the SGB and SCC， shows the geophysical characteristics similar to the SCC along the southern and central segments. The integration of all these geophysical observations suggests that the SCC’s western boundary follows the Yingxiu-Beichuan fault along the northern segment， without obvious underthrust. However， this boundary is located west of the Wenchuan-Maoxian fault zone along the southern and central segments， with distinct westward wedging/underthrusting. The irregular geometry of the SCC’s western boundary can further explain the variation in structural deformation along the LMTB. By comparing the differences in crustal thickness and lithospheric strength between the SGB and SCC， this study suggests that the varying crustal strength between tectonic blocks may be the controlling factor for the irregular geometry of the SCC’s western boundary.

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