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Air target intention recognition and causal effect analysis combining uncertainty information reasoning and potential outcome framework

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Chinese Journal of Aeronautics 2024年第1期37卷 287-299页

作者： yu ZHANG Fanghui HUANG xinyang DENG Mingda LI Wen JIANG School of Electronics and Information Northwestern Polytechnical UniversityXi’an 710129China

Recognizing target intent is crucial for making decisions on the battlefield.However,the imperfect and ambiguous character of battlefield situations challenges the validity and causation analysis of classical intent recognition techniques.Facing with the challenge,a target intention causal analysis paradigm is proposed by combining with an Intervention Retrieval(IR)model and a Hybrid Intention Recognition(HIR)model.The target data acquired by the sensors are modelled as Basic Probability Assignments(BPAs)based on evidence theory to create uncertain datasets.Then,the HIR model is utilized to recognize intent for a tested sample from uncertain datasets.Finally,the intervention operator under the evidence structure is utilized to perform attribute intervention on the tested sample.Data retrieval is performed in the sample database based on the IR model to generate the intention distribution of the pseudo-intervention samples to analyze the causal effects of individual sample attributes.The simulation results demonstrate that our framework successfully identifies the target intention under the evidence structure and goes further to analyze the causal impact of sample attributes on the target intention.

关键词： Causal effect analysis Hybrid intention recognition Intervention retrieval Target intention Uncertainty reasoning

Bi-doped carbon quantum dots functionalized liposomes with fluorescence visualization imaging for tumor diagnosis and treatment

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Chinese Chemical Letters 2024年第4期35卷 414-419页

作者： Peide Zhu Yangjia Liu Yaoyao Tang Siqi Zhu xinyang Liu Lei Yin Quan Liu Zhiqiang yu Quan Xu Dixian Luo Juncheng Wang State Key Laboratory of Heavy Oil Processing China University of Petroleum-BeijingBeijing 102249China Department of Laboratory Medicine Dongguan Institute of Clinical Cancer ResearchAffiliated Dongguan HospitalSouthern Medical UniversityDongguan 523058China Department of Laboratory Medicine Huazhong University of Science and Technology Union Shenzhen Hospital(Nanshan Hospital)Shenzhen 518052China Institute of Stomatology First Medical CenterChinese PLA General HospitalBeijing 100853China

Liposomes are one of the significant classes of antitumor nanomaterials and the most successful nanomedicine drugs in clinical translation. However, it is difficult to accurately reveal liposome delivery modes and drug release rates at different p H values to assess the biodistribution and drug delivery pathways in vivo. Here, we established a strategy to integrate Bi-doped carbon quantum dots(CQDs)with liposomes to produce fluorescence visualization and therapeutic effects, namely lipo/Bi-doped CQDs.Lipo/Bi-doped CQDs show good water solubility and physicochemical properties, which can be used for in vitro labeling of colon cancer(CT26) cells and in vivo imaging localization tracking tumors for monitoring. Simultaneously, thanks to the excellent p H sensitivity and ion doping characteristic of Bi-doped CQDs, lipo/Bi-doped CQDs can be used to reveal the drug release rate of liposomes at different p H values and exhibit potential effects in vivo antitumor therapy.

关键词： Bi-doped CQDs Lipo/Bi-doped CQDs pH sensitivity In vitro/in vivo imaging Diagnosis and treatment integration

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多功能热电织物用于可穿戴无线传感系统

Engineering 2024年第4期35卷 158-167页

作者： xinyang He Jiaxin Cai Mingyuan Liu Xuepeng Ni Wendi Liu Hanyu Guo Jianyong yu Liming Wang Xiaohong Qin Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai 201620China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Innovation Center for Textile Science and Technology Donghua UniversityShanghai 201620China

Flexible thermoelectric materials play an important role in smart wearables,such as wearable power generation,self-powered sensing,and personal thermal management.However,with the rapid development of Internet of Things(IoT)and artificial intelligence(AI),higher standards for comfort,multifunctionality,and sustainable operation of wearable electronics have been proposed,and it remains challenging to meet all the requirements of currently reported thermoelectric devices.Herein,we present a multifunctional,wearable,and wireless sensing system based on a thermoelectric knitted fabric with over 600 mm·s^(-1)air permeability and a stretchability of 120%.The device coupled with a wireless transmission system realizes self-powered monitoring of human respiration through an mobile phone application(APP).Furthermore,an integrated thermoelectric system was designed to combine photothermal conversion and passive radiative cooling,enabling the characteristics of being powered by solar-driven in-plane temperature differences and monitoring outdoor sunlight intensity through the APP.Additionally,we decoupled the complex signals of resistance and thermal voltage during deformation under solar irradiation based on the anisotropy of the knitted fabrics to enable the device to monitor and optimize the outdoor physical activity of the athlete via the APP.This novel thermoelectric fabricbased wearable and wireless sensing platform has promising applications in next-generation smart textiles.

关键词： Thermoelectric fabrics Wearable device Wireless Multifunctional sensing system Outdoor wearable signal monitoring

Preparation of cinnamic hydroxamic acid collector and study on flotation characteristics and mechanism of scheelite

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International Journal of Mining Science and Technology 2023年第6期33卷 773-781页

作者： Xiang Yao xinyang yu Liping Wang yuhui Zeng Linghan Mao Shanming Liu Honghui Xie Guichun He Zhiqiang Huang Zhilin Liu Jiangxi Provincial Key Laboratory of Mining Engineering Ganzhou 341000China School of Resource and Environment Engineering Jiangxi University of Science and TechnologyGanzhou 341000China Yongping Copper Mine Jiangxi Copper Co.LTD.Shangrao 334000China

In this paper,using methyl cinnamate as raw material,the new cinnamic hydroxamic acid collector(CIHA)was synthesized by the hydroxylamine method.The collector performance of hydroxamic acid was investigated for scheelite and gangue calcite,and the flotation separation test of scheelite and calcite was carried out with CIHA as the collector.The interaction mechanism between hydroxamic acid and scheelite minerals has also been investigated through zeta potential,Fourier transform infrared spectroscopy(FTIR)experiments,X-ray photoelectron spectroscopy(XPS)experiments,and density functional theory(DFT)calculation.The single mineral flotation test and artificially mixed ore showed that CIHA had an excellent collection effect and selectivity.Zeta potential,FTIR,and XPS showed that CIHA was adsorbed on the scheelite surface by strong chemical adsorption.The active group of CIHA was analyzed through quantum chemical calculation.It was speculated that C=O and N-O bonds could synthesize a five-membered chelated hydroxamic acid group with Ca element chelate on scheelite surface,changing hydrophobicity and making it more likely to emerge from the pulp.

关键词： Hydroxamic acid CIHA Flotation Scheelite

战略文化视阈下美国对太平洋岛国的策略与路径

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太平洋学报 2024年第2期32卷 71-83页

作者：张颖于鑫洋北京外国语大学北京100089

第二次世界大战后,美国与太平洋岛国在互动的过程中形成了以“美国例外”“有限干预”和“战略拒止”为特征的战略文化。基于“美国例外”,美国提出需保持对“自由联系国”的“绝对权威”;基于“有限干预”,美国寻求与太平洋岛国建立机... 详细信息

第二次世界大战后,美国与太平洋岛国在互动的过程中形成了以“美国例外”“有限干预”和“战略拒止”为特征的战略文化。基于“美国例外”,美国提出需保持对“自由联系国”的“绝对权威”;基于“有限干预”,美国寻求与太平洋岛国建立机制化合作关系;基于“战略拒止”,美国对域外国家介入太平洋岛国事务保持高度警惕。在战略文化的驱动下,美国积极改善与南太平洋区域组织的政治外交关系,加强顶层设计,由美国国际开发署统筹对太平洋岛国的对外援助事务,开展公共外交活动树立美国正面积极的国际形象,并将太平洋岛国纳入伙伴关系网络,在太平洋岛国及周边地区扩大军事部署。即便如此,由于美国对太平洋岛国的发展问题缺乏认知,忽视双方历史、文化差异并与太平洋岛国存在现实利益分歧,美国在太平洋岛国的战略文化辐射效果有限。

关键词：美国太平洋岛国战略文化 “美国例外” “有限干预” “战略拒止”

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法国在大洋洲海外领地的治理模式转型

现代国际关系 2024年第6期 121-138,141页

作者：张颖于鑫洋北京外国语大学国际关系学院北京外国语大学太平洋岛国研究中心

法国在大洋洲海外领地的治理自二战结束以来经历了明显的模式转型,近几年来更是凸显其追求战略自主的决心。法国通过治理和法律机制,逐步推进地方自治和经济转型,对这些领地的治理在政治上从殖民控制转向政治合作,在经济上从掠夺性开发... 详细信息

法国在大洋洲海外领地的治理自二战结束以来经历了明显的模式转型,近几年来更是凸显其追求战略自主的决心。法国通过治理和法律机制,逐步推进地方自治和经济转型,对这些领地的治理在政治上从殖民控制转向政治合作,在经济上从掠夺性开发转向本土化可持续发展。法国在大洋洲的海外领地日益成为其对外战略的支点,服务于其国家的整体利益和海外安全。法国在该地区的治理政策日益多元化,如推动经济多元化、加强区域安全合作,弱化其独立诉求,助推区域形势和相关国家政策的变化。

关键词：法国大洋洲海外领地治理模式战略自主

特征注意力Transformer模块在3D唇语序列身份识别中的应用

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计算机工程与应用 2024年第7期60卷 141-146页

作者：骈鑫洋王瑜张洁北京工商大学人工智能学院北京100048 北京科技大学自动化学院北京100083

唇语行为是一种新兴起的生物特征识别技术,三维(three-dimensional,3D)唇语点云序列因包含真实嘴唇空间结构和运动信息,已成为个体身份识别的重要生物特征。但是,3D点云的无序与非结构化的特点导致时空特征的提取非常困难。为此,提出一... 详细信息

唇语行为是一种新兴起的生物特征识别技术,三维(three-dimensional,3D)唇语点云序列因包含真实嘴唇空间结构和运动信息,已成为个体身份识别的重要生物特征。但是,3D点云的无序与非结构化的特点导致时空特征的提取非常困难。为此,提出一种深度学习网络模型,用于3D唇语序列身份识别。该网络采用四层改进的PointNet++作为网络骨干,以分层方式抽取特征,为了学习到更多包含身份信息的时空特征,设计一种动态唇特征注意力Transformer模块,连接于PointNet++网络每一层之后,可以学习到不同特征图之间的相关信息,有效捕捉视频序列不同帧的上下文信息。与其他注意力机制构建的Transformer相比,提出的Transformer模块具有较少的参数,在S3DFM-FP和S3DFM-VP数据集上进行的实验表明,提出网络模型在3D唇语点云序列的身份识别任务中效果显著,即使在不受姿态约束的S3DFM-VP数据集中也表现出良好的性能。

关键词：说话人识别 Transformer PointNet++ 三维唇语点云

太平洋岛国对一个中国原则认知演进及政策趋向

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和平与发展 2024年第1期 84-108,206页

作者：张颖于鑫洋北京外国语大学国际关系学院

鉴于中国国际影响力和作用的日益上升以及获取国际资源以促进自身发展、提升主动性和施动性等各种因素,越来越多的太平洋岛国已逐渐认识到台湾地区不再是其重要贸易伙伴和发展依靠,它们对一个中国原则的认知也更趋理智和务实。虽然中国... 详细信息

鉴于中国国际影响力和作用的日益上升以及获取国际资源以促进自身发展、提升主动性和施动性等各种因素,越来越多的太平洋岛国已逐渐认识到台湾地区不再是其重要贸易伙伴和发展依靠,它们对一个中国原则的认知也更趋理智和务实。虽然中国台湾当局为维持和扩大其在太平洋岛国的影响,企图通过主观建构民族与文化的联系、提供经济援助等手段继续影响一些太平洋岛国政府决策,并试图塑造这些国家的民众对中国台湾当局的“正面认知”,同时,美国也在不断加大干涉太平洋岛国涉华事务的力度,但都无法改变绝大多数太平洋岛国将与中国建交和维持良好关系作为重要选项并站到历史正确一方的政策趋向。

关键词：太平洋岛国中国台湾问题一个中国中美关系认知

Flotation separation of wolframite from calcite using a new trisiloxane surfactant as collector

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International Journal of Mining Science and Technology 2023年第3期33卷 379-387页

作者： Shuyi Shuai Zhiqiang Huang Vladimir E.Burov Vladimir Z.Poilov Fangxu Li Hongling Wang Rukuan Liu Shiyong Zhang Chen Cheng Wenyuan Li xinyang yu Guichun He Weng Fu Jiangxi Province Key Laboratory of Mining Engineering Jiangxi University of Science and TechnologyGanzhou 341000China Department of Chemical Engineering Perm National Research Polytechnic UniversityPerm 614990Russia Guangdong Institute of Resources Comprehensive Utilization Guangzhou 510650China Hunan Academy of Forestry Changsha 410004China School of Chemical Engineering University of QueenslandSt Lucia 4072 QLDAustralia

Since wolframite is usually associated with calcite,the separation and enrichment of wolframite by froth flotation remains a great challenge.Herein,a novel trisiloxane surfactant N-(2-aminoethyl)-3-ami nopropyltrisiloxane(AATS)was successful synthesized,which was used for the separation of wolframite from calcite for the first time.The flotation separation performance of AATS was studied by flotation test,and its adsorption mechanism was explored based on contact angle,infrared spectrum analysis(FTIR),zeta potential and density functional theory(DFT)calculation.The results of microflotation test and binary mixed ore flotation test pointed that AATS had excellent selectivity and more prominent collection capacity for the flotation of wolframite when compared with industrial reagent sodium oleate(NaOL).The measurement results of contact angle proved that AATS improved the hydrophobicity of the wolframite surface.The highly selective adsorption mechanism of AATS surfactant on mineral surfaces were further researched and analyzed by FTIR and zeta potential.The results revealed that AATS surfactant had significant adsorption effect on wolframite,yet almost no adsorption on calcite.DFT calculation indicated that AATS produced electrostatic adsorption with wolframite surface through—N+H3 group.

关键词： Flotation Wolframite Calcite Trisiloxane surfactant Adsorption