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Beamforming Design for IRS-and-UAV-Aided Two-Way Amplify-and-Forward Relay Networks in Maritime IoT

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China Communications 2024年第8期21卷 45-61页

作者： wang xuehui Shu Feng Wu Yuanyuan Shi Weiping Yan Shihao Zhao Yifan Cheng Qiankun Sun Zhongwen wang Jiangzhou School of Information and Communication Engineering Hainan UniversityHaikou 570228China Collaborative Innovation Center of Information Technology Hainan UniversityHaikou 570228China School of Electronic and Optical Engineering Nanjing University of Science and TechnologyNanjing 210094China School of Network and Communication Nanjing Vocational College of Information TechnologyNanjing 210023China School of Science and Security Research Institute Edith Cowan UniversityPerthWA 6027Australia School of Engineering University of KentCanterbury CT27NTU.K

In this paper,an intelligent reflecting surface(IRS)-and-unmanned aerial vehicle(UAV)-assisted two-way amplify-and-forward(AF)relay network in maritime Internet of Things(IoT)is proposed,where ship1(S1)and ship2(S2)can be viewed as data collecting *** enhance the message exchange rate between S1 and S2,a problem of maximizing minimum rate is cast,where the variables,namely AF relay beamforming matrix and IRS phase shifts of two time slots,need to be *** achieve a maximum rate,a low-complexity alternately iterative(AI)scheme based on zero forcing and successive convex approximation(LC-ZF-SCA)algorithm is *** obtain a significant rate enhancement,a high-performance AI method based on one step,semidefinite programming and penalty SCA(ONSSDP-PSCA)is *** results show that by the proposed LC-ZF-SCA and ONS-SDP-PSCA methods,the rate of the IRS-and-UAV-assisted AF relay network surpass those of with random phase and only AF relay ***,ONS-SDP-PSCA perform better than LC-ZF-SCA in aspect of rate.

关键词： beamforming maritime Internet of Things phase shift rate performance two-way amplify-and-forward relay unmanned aerial vehicle

Relationship between the unique microstructures and behaviors of high-entropy alloys

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International Journal of Minerals,Metallurgy and Materials 2024年第6期31卷 1350-1363页

作者： Yaqi Wu Peter KLiaw Ruixuan Li Weiran Zhang Guihong Geng xuehui Yan Guiqun Liu Yong Zhang State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China Department of Materials Science and Engineering The University of TennesseeKnoxvilleTN 37996USA Xi’an Rare Metal Materials Institute Co.Ltd. Xi’an 710016China School of Materials Science and Engineering North Minzu UniversityYinchuan 750030China GRIMAT Engineering Institute Co. Ltd.Beijing 101407China

High-entropy alloys(HEAs),which were introduced as a pioneering concept in 2004,have captured the keen interest of nu-merous ***,in this context,can be perceived as representing disorder and *** contrast,elemental composi-tions within alloy systems occupy specific structural sites in space,a concept referred to as *** accordance with Shannon entropy,structure is analogous to ***,the arrangement of atoms within a material,termed its structure,plays a pivotal role in dictating its *** addition to expanding the array of options for alloy composites,HEAs afford ample opportunities for diverse structural *** profound influence of distinct structural features on the exceptional behaviors of alloys is underscored by numer-ous *** features include remarkably high fracture strength with excellent ductility,antiballistic capability,exceptional radi-ation resistance,and corrosion *** this paper,we delve into various unique material structures and properties while elucidating the intricate relationship between structure and performance.

关键词： high-entropy alloys unique microstructure special properties alloy design

MDGA2 Constrains Glutamatergic Inputs Selectively onto CA1 Pyramidal Neurons to Optimize Neural Circuits for Plasticity,Memory,and Social Behavior

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Neuroscience Bulletin 2024年第7期40卷 887-904页

作者： xuehui.wang Donghui Lin Jie Jiang Yuhua Liu Xinyan Dong Jianchen Fan Lifen Gong Weida Shen Linghui Zeng Tonghui Xu Kewen Jiang Steven A.Connor Yicheng Xie School of Life Sciences Nanchang UniversityNanchang330031China Department of Neurology Children's HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhou 310052China Department of Biology York University4700 Keele StreetTorontoON M3J 1P3Canada Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province School of MedicineHangzhou City UniversityHangzhou 310015China

Synapse organizers are essential for the development,transmission,and plasticity of *** as rare synapse suppressors,the MAM domain containing glycosylphosphatidylinositol anchor(MDGA)proteins contributes to synapse organization by inhibiting the formation of the synaptogenic neuroligin-neurexin complex.A previous analysis of MDGA2 mice lacking a single copy of Mdga2 revealed upregulated glutamatergic synapses and behaviors consistent with ***,MDGA2 is expressed in diverse cell types and is localized to both excitatory and inhibitory *** the network versus cell-specific effects of MDGA2 loss-of-function requires a cell-type and brain region-selective *** address this,we generated mice harboring a conditional knockout of Mdga2 restricted to CA1 pyramidal *** we report that MDGA2 suppresses the density and function of excitatory synapses selectively on pyramidal neurons in the mature *** deletion of Mdga2 in CA1 pyramidal neurons of adult mice upregulated miniature and spontaneous excitatory postsynaptic potentials,vesicular glutamate transporter 1 intensity,and neuronal *** effects were limited to glutamatergic synapses as no changes were detected in miniature and spontaneous inhibitory postsynaptic potential properties or vesicular GABA transporter ***,evoked basal synaptic transmission and AMPAR receptor currents were enhanced at glutamatergic *** a behavioral level,memory appeared to be compromised in Mdga2 cKO mice as both novel object recognition and contextual fear conditioning performance were impaired,consistent with deficits in long-term potentiation in the CA3-CA1 *** affiliation,a behavioral analog of social deficits in autism,was similarly *** results demonstrate that MDGA2 confines the properties of excitatory synapses to CA1 neurons in mature hippocampal circuits,thereby optimizing this network for plasticity,c

关键词： MDGA2 CA1 pyramidal neurons Glutamatergic inputs Synaptic plasticity Memory Social behaviors Autism Synapse organizers

行政复议与诉讼中的规章:定位区分、立法逻辑与适用展开

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法学评论 2024年第1期42卷 136-142页

作者：王学辉西南政法大学地方法制研究中心

《行政复议法》和《行政诉讼法》分别将规章定位为“审理依据”和“审理参照”,这种定位差异是由规章在我国规范体系中的“尴尬”位置所导致的。从立法逻辑来看,行政诉讼是司法权的行使,行政复议是行政权的行使,司法权与行政权的性质、... 详细信息

《行政复议法》和《行政诉讼法》分别将规章定位为“审理依据”和“审理参照”,这种定位差异是由规章在我国规范体系中的“尴尬”位置所导致的。从立法逻辑来看,行政诉讼是司法权的行使,行政复议是行政权的行使,司法权与行政权的性质、关系以及行政权的内部关系,决定了这种区分的必要性,而立法的妥协性使得这种区分仅限于规章,不包括行政法规和规范性文件。然而,从法律适用的逻辑来看,在《立法法》关于法律规范位阶规定的限制下,行政诉讼中“参照规章”和“依据行政法规”之间在“拒绝适用”上并没有本质区别,二者区分的实质在于合法性假定程度和审查强度的不同。为了与行政诉讼中的法律适用规则相衔接,行政复议机关同样需要根据法律规范位阶进行法律适用。基于行政权的内部关系,应当参照《行政复议法》对于规范性文件的合法性处理机制对行政规章进行相应处理。

关键词：行政规章参照适用审理依据行政复议法律适用

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Research on the Impact of Social Media Live-Streaming on Consumer Purchasing Behavior and Its Coping Strategies

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Proceedings of Business and Economic Studies 2024年第3期7卷 188-193页

作者： xuehui Ding Rosidah Musa City University Malaysia Selangor 47600Malaysia Binzhou Polytechnic Binzhou 256600Shandong ProvinceChina

Due to the rapid development of network technology and the popularity of live-streaming,more and more businesses and individuals are using live-streaming to promote their products,giving rise to a new marketing model of social media *** on the social media live-streaming market,businesses or enterprises focus on tapping into new consumer demand,and social media live-streaming marketing has gradually expanded into various *** on the SOR theory,this paper discusses how to improve the coping strategies of consumer purchasing behavior through social media live-streaming by analyzing the representative factors affecting consumer purchasing behavior such as anchors,brands,and live-streaming content in social media *** results of this study will contribute to a better understanding of the relationship between social media live-streaming marketing models and consumer purchasing behavior and will help to reveal the potentials and limitations of social media live-streaming,thus providing valuable ideas and scientific basis for social media live-streaming marketing strategies.

关键词： SOR theory Anchor Brand Live-streaming content Coping strategy

Developments of Computing in Papua New Guinea in the Post-Independence Era

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Journal of Computer and Communications 2024年第8期12卷 141-160页

作者： Zhaohao Sun xuehui Wei Francisca Pambel School of Business PNG University of Technology Lae Papua New Guinea Confucius Institute Papua New Guinea University of Technology Lae Papua New Guinea

This article looks at the developments of computing in Papua New Guinea (PNG) in the post-independence era. More specifically, this article examines the development of national policies on Information and Communications Technology (ICT), digital technologies in PNG, and the development of computing education in PNG since 1975. The research findings reveal that PNG has made solid progress in computing, ICT, national ICT policies, digital technologies, and computing education at universities in the post-independence era. The proposed approach in this article might facilitate the research and development of computing, ICT, digital technologies, and big data analytics in PNG, and beyond.

关键词： Computing Digital Technologies ICT Computing Education Papua New Guinea

Circle-map profiling of extrachromosomal circular DNA as diagnostic biomarkers for lung cancer

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Precision Clinical Medicine 2024年第1期7卷 90-92页

作者： Yongfeng Yang Tingting Song Sha Liu Zhiqiang Liu xuehui.wang Yi Li Dan Liu Department of Respiratory and Critical Care Medicine Institute of Respiratory HealthCenter of Precision MedicineWest China HospitalSichuan UniversityChengdu610041China

Dear Editor:Lung cancer has the highest incidence rate among malignancies and remains the primary contributor to cancer-related mortality on a global scale[1].Early detection is the most efficacious approach for enhancing the prognosis and mitigating the mortality of patients with lung cancer[2].Currently,diagnosis of lung cancer is mainly by different types of imaging including low-dose spiral computed tomography(LDCT)combined with pathological assessment of biopsy,but prevalence of false-positive results and associated expenses may impede its becoming a standard screening technique[3].

关键词： mortality lung diagnosis

中国高龄老年女性的多重发展困境及其治理选择

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治理研究 2024年第5期40卷 53-69,158页

作者：王雪辉杜鹏复旦大学社会发展与公共政策学院中国人民大学人口与健康学院中国人民大学老年学研究所

随着中国社会的快速变迁和人口老龄化进程的加剧,高龄老年女性群体正面临一系列复杂的挑战和困境。基于1998年、2008年和2018年中国老年人健康长寿影响因素调查(CLHLS)的数据,研究全面剖析了高龄老年女性在个体、家庭和社会三个层面所... 详细信息

随着中国社会的快速变迁和人口老龄化进程的加剧,高龄老年女性群体正面临一系列复杂的挑战和困境。基于1998年、2008年和2018年中国老年人健康长寿影响因素调查(CLHLS)的数据,研究全面剖析了高龄老年女性在个体、家庭和社会三个层面所遭遇的多重发展困境。可以发现,在个体层面,高龄老年女性普遍面临教育不平等与认知能力衰退、身体亚健康与自理能力限制、孤独感与心态消极等挑战;在家庭层面,她们往往遭遇晚年丧偶、独居空巢、经济自主性较低和照料资源不足等困境;在社会层面,医疗保障不充分、养老保障不完善、长期护理保障缺失等问题则更为突出。高龄老年女性是老龄社会社会治理的重要关注对象,针对她们的多重发展困境,亟需构建涵盖微观、中观和宏观三个层面的综合治理策略框架,明确精准识别、科学评估和积极应对的治理路径,全面推动老龄社会治理体系和治理能力现代化,提升高龄老年女性的生活质量和福祉。

关键词：高龄老年女性多重发展困境老龄社会治理选择

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基于态势感知的海洋安全情报系统构建研究

情报杂志 2024年第9期43卷 48-56,76页

作者：王雪慧胡峰国防科技大学军政基础教育学院长沙410073 江苏省科学技术情报研究所/江苏省科学技术发展战略研究院南京210042 南京师范大学国家安全与应急管理研究中心南京210023

[研究目的]为有效应对来自海上的传统安全和非传统安全威胁,强化海洋安全保障体系建设,必须构建跨领域、全方位、智能化的海洋安全情报系统予以支撑。[研究方法]以态势感知为分析框架,按照“内涵阐释—框架引介—机理剖析—模型建构”... 详细信息

[研究目的]为有效应对来自海上的传统安全和非传统安全威胁,强化海洋安全保障体系建设,必须构建跨领域、全方位、智能化的海洋安全情报系统予以支撑。[研究方法]以态势感知为分析框架,按照“内涵阐释—框架引介—机理剖析—模型建构”的逻辑理路,构建基于态势感知的海洋安全情报系统模型。[研究结论]该系统模型由海洋安全情报态势觉察提取子系统、海洋安全情报态势分析预测子系统、海洋安全情报投射应用子系统组成,其构建可为我国海洋安全保障体系中的情报建设提供范式参考。

关键词：海洋安全海洋安全情报海洋安全情报系统态势感知