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Spatial-temporal Patterns of Urban Parks’Effects on the Sentiments and Their Associated Factors Based on Social Media Data——a Case Study in Beijing

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Journal of Geodesy and Geoinformation Science 2024年第2期7卷 95-110页

作者： YUAN Yuting WANG Juan wei yali ZHU Yanrong SHI Changsheng MENG Bin College of Applied Arts and Science Beijing Union UniversityBeijing 100191China Laboratory of Urban Cultural Sensing&Computing Beijing Union UniversityBeijing 100191China Beijing Guohuan Environmental Technology Co. Ltd.Tangshan 063020China

As the pivotal green space,urban parks play an important role in urban residents’daily *** can not only bring people physical health,but also can be more likely to elicit positive sentiment to those who visit ***,social media big data has provided new data sources for sentiment ***,there was limited researches that explored the connection between urban parks and individual’s ***,this study firstly employed a pre-trained language model(BERT,Bidirectional Encoder Representations from Transformers)to calculate sentiment scores based on social media ***,this study analysed the relationship between urban parks and individual’s sentiment from both spatial and temporal ***,by utilizing structural equation model(SEM),we identified 13 factors and analyzed its degree of the *** research findings are listed as below:①It confirmed that individuals generally experienced positive sentiment with high sentiment scores in the majority of urban parks;②The urban park type showed an influence on sentiment *** this study,higher sentiment scores observed in Eco-parks,comprehensive parks,and historical parks;③The urban parks level showed low impact on sentiment *** distinctions observed mainly at level-3 and level-4;④Compared to internal factors in parks,the external infrastructure surround them exerted more significant impact on sentiment *** instance,number of bus and subway stations around urban parks led to higher sentiment scores,while scenic spots and restaurants had inverse *** study provided a novel method to quantify the services of various urban parks,which can be served as inspiration for similar studies in other cities and countries,enhancing their park planning and management strategies.

关键词： urban parks sentiment analysis social media data SEM Beijing

Effective and selective electrocatalytic nitrate reduction to ammonia on urchin-like and defect-enriched titanium oxide microparticles

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Chinese Chemical Letters 2023年第12期34卷 269-274页

作者： Mue Tang Qiuwen Tong Yiming Li Ruchun Jiang Li Shi Fei Shen yali wei Zixun Liu Shuyue Liu jun Zhang Guangming jiang College of Metallurgy and Materials Engineering Chongqing Key Laboratory of Nano/Micro Composites and DevicesChongqing University of Science and TechnologyChongqing 401331China Engineering Research Center for Waste Oil Recovery Technology and Equipment Ministry of EducationChongqing Technology and Business University.Chongqing 400067Chin Sichuan Academy of Environmental Sciences Chengdu 610041China

This work reported a facile approach to surface oxygen vacancy(O_(v))-enriched urchin-like TiO_(2) microparticles(U-TiO_(2)),which were highly effective and durable in catalyzing selective nitrate reduction to ammonia(NOgRR),Specifically,the U-TiO_(2)delivered a mass activity of 1.15 min^(-1)mg^(-1)calyst.a low yield of toxic NO_(2)^(-)-N intermediate(≤0.4mg/L)and an exceptional high NH_(3)^(-)-N selectivity of 98.1%in treating 22.5 mg/L of NO_(3)^(-)-N under a potential of-0.60V ***,outperforming most of the reported oxidebased *** comparing the performance of U-TiO_(2)with that of the solid amorphous TiO_(2) counterpart(A-TiO_(2))that had close particle size but more O_(v) on surfaces,we identified that the O_(v) was the reactive sites,but rather than its content,the NO_(3)RR kinetics were primarily limited by the electron and mass transfer at U-TiO_(2)/water ***,the superior performance of U-TiO_(2)to A-TiO_(2)could be ascribed to the hierarchical urchin-like structure in U-TiO_(2).The in-situ DEMS test revealed that the NO_(3)RR on U-TiO_(2)followed a pathway of ^(*)NO_(3)^(-)→^(*)NO_(2)^(-)→^(*)NO→^(*)N→^(*)NH^(-)→^(*)NH_(2)→^(*)NH_(3).We also demonstrated that the U-TiO_(2) could keep its robust performance under a wide NO_(3)^(-)-N concentration range and in the presence of some co-existing ions(such as Ca^(2+),Cl^(-),Mg^(2+)).However,the presence of humic acid and CO_(3)^(2-) in water slowed down the NO_(3)RR on U-TiO_(2).This work provides a more fundamental insight into the O_(v)-driven NO_(3)RR process on TiO_(2),which should benefit for the development of eficient TiO_(2)-based catalvsts.

关键词： Nitrate pollution TiO_(2) Electrocatalytic nitrate reduction Oxygen vacancy Ammonia selectivity

Intra-strain Elicitation and Suppression of Plant Immunity by Ralstonia solanacearum Type-III Effectors in Nicotiana benthamiana

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Plant Communications 2020年第4期1卷 87-100页

作者： Yuying Sang Wenjia Yu Haiyan Zhuang yali wei Lida Derevnina Gang Yu Jiamin Luo Alberto P.Macho Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesShanghai Institutes of Biological SciencesChinese Academy of SciencesShanghai 201602China University of Chinese Academy of Sciences BeijingChina The Sainsbury Laboratory University of East AngliaNorwich Research ParkNorwich NR47UHUK

Effector proteins delivered inside plant cells are powerful weapons for bacterial pathogens,but this exposes the pathogen to potential recognition by the plant immune ***,the effector repertoire of a given pathogen must be balanced for a successful *** solanacearum is an aggressive pathogen with a large repertoire of secreted *** of these effectors,RipE1,is conserved in most *** strains sequenced to *** this work,we found that RipE1 triggers immunity in ***,which requires the immune regulator SGT1,but not EDS1 or ***,RipE1-triggered immunity induces the accumulation of salicylic acid(SA)and the overexpression of several genes encoding phenylalanine-ammonia lyases(PALs),suggesting that the unconventional PALmediated pathway is responsible for the observed SA ***,RipE1 recognition also induces the expression of jasmonic acid(JA)-responsive genes and JA biosynthesis,suggesting that both SA and JA may act cooperatively in response to *** further found that RipE1 expression leads to the accumulation of glutathione in plant cells,which precedes the activation of immune *** secretes another effector,RipAY,which is known to inhibit immune responses by degrading cellular ***,RipAY inhibits RipE1-triggered immune *** work shows a strategy employed by *** to counteract the perception of its effector proteins by plant immune system.

关键词： ETI SGT1 effector immunity Ralstonia PAL

Study on Spatial Distribution Characteristics and Influencing Factors of Valley-type Rural Settlements——Taking Yinchanggou,Pengzhou City as an Example

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Study on Spatial Distribution Characteristics and Influencin...

作者： Shixiang LI Zhiwei YIN yali wei College of Resources Sichuan Agricultural University

With the accelerated transformation of rural society and the continuous advancement of Rural Revitalization Strategy in China,the study of rural settlement space in alpine and canyon areas can not be *** paper takes the valley-type rural settlements as the research object,and divides 8 sample area in Yinchanggou,Pengzhou City,Chengdu,Sichuan Province,with a total of 190 settlements as sampling *** ArcGIS analysis software,the nearest-neighbour distance and the nearest-neighbor index,geographical convergence index and imbalance index are calculated by method of quantitative geography,and the spatial distribution type,concentration degree and equilibrium degree of settlements are ***,the main factors affecting the spatial distribution of rural settlements in Yinchanggou are topography,natural disaster,traffic and *** on the above research,this paper aims to provide a reference for exploring the optimal spatial distribution pattern and the road of modernization transformation of valley-type rural settlements.

关键词： Yinchanggou Valley-type rural settlements Spatial distribution Influencing factors

Hierarchical Task Assignment of Multiple UAVs with Improved Firefly Algorithm Based on Simulated Annealing Mechanism

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Hierarchical Task Assignment of Multiple UAVs with Improved ...

第40届中国控制会议

作者： yali wei Bing Wang Wenjie Liu Lan Zhang University of Science & Technology Beijing Tianjin Aerospace Zhongwei Data System Technology Co. LTD

In the task assignment of multiple UAVs problem, task combination scale may expand significantly with UAVs and targets increasing. This paper proposes a new hierarchical task assignment method by means of multiple UAVs forming several groups to perform multi-task on a set of clusters. In the hierarchical decomposition phase, using the balance cluster method simplifies the large-scale UAV system and reduces computational complexity. In the task assignment phase, an improved firefly algorithm is proposed, which discretizes the original problem through double chains coding and adopts multi-neighbor search mechanism to maintain the diversity of the population. Finally, the Metropolis criterion in simulated annealing is introduced to avoid the algorithm falling into the local optimum. The simulation results show that, the fine effect of the proposed algorithm in terms of search ability and convergence speed, is demonstrated by comparison with other algorithms. And the hierarchical decomposition structure can significantly reduce assignment time in large-scale multi-UAV task assignment.

关键词： Unmanned aerial vehicle Task assignment Hierarchical decomposition Combinatorial optimization Firefly algorithm Simulated annealing

H∞ Consensus for Discrete-time Multi-agent Systems Subject to Distributed Delay and Switching Topologies

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H∞ Consensus for Discrete-time Multi-agent Systems Subject ...

第40届中国控制会议

作者： Bojun Zhang Hanqiao Huang Xinpeng Xu Haoyu Cheng yali wei School of Marine Science and Technology Northwestern Polytechnical University Unmanned System Research Institute Northwestern Polytechnical University Shanghai Aerospace Control Technology Institute School of Astronautics Northwestern Polytechnical University

This paper is concerned with the issue of weighted fconsensus for discrete-time multi-agent systems with time-varying delay and switching topologies. The objective is designing a dynamic output feedback protocol in the presence of external perturbations such that the system achieves consensus in mean square and has a prescribed performance level. Firstly, the consensus design is converted to a standard control problem by reconstructing the closed-loop system as a reduced-order system. Then, by means of the multiple Lyapunov-Krasovskii functional method, the delay-dependent bounded real lemma is derived to guarantee the stability of closed-loop system. Based on these, sufficient conditions for the existence of the required dynamic output feedback protocol is developed in the form of a series of solvable linear matrix inequalities. Finally, numerical example and simulation results are given to illustrate the effectiveness of the obtained results.

关键词： Multi-agent system Consensus Average dwell-time Time-varying delay Dynamic output feedback protocol

Cooperative Multi-task Assignment of Multiple UAVs with Improved Genetic Algorithm Based on Beetle Antennae Search

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Cooperative Multi-task Assignment of Multiple UAVs with Impr...

第三十九届中国控制会议

作者： Ziye Wang Bing Wang yali wei Pengfei Liu Lan Zhang School of Automation & Electronic Engineering University of Science & Technology Beijing Tianjin Aerospace Zhongwei Data System Technology Co. LTD

With the number of UAVs and targets increasing, the quantity of task combinations increases exponentially. This article presents an improved genetic algorithm based on the beetle antennae search algorithm to Multi-UAV task ***, a target sequence is searched through beetle antennae search algorithm, and then the method of twice crossing operators is used to increase the diversity of the target sequence arrangements and retain the global optimality of the population. Finally,the method of dynamically adjusting the mutation probability is used to increase the local search ability of the algorithm to avoid locally optimal. In the simulation part, the effect of the proposed algorithm, both on searching capability and convergence speed, is demonstrated by comparison with other algorithms. The results show that the proposed algorithm outperforms other algorithms in solving the problem of Multi-UAV task allocation.

关键词： Unmanned aerial vehicle Task allocation Combinatorial optimization Genetic algorithm Beetle antennae search algorithm

Spatial transcriptomics combined with single-nucleus RNA sequencing reveals glial cell heterogeneity in the human spinal cord

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Neural Regeneration Research 2025年第11期20卷 3302-3316页

作者： yali Chen Yiyong wei Jin Liu Tao Zhu Cheng Zhou Donghang Zhang Department of Anesthesiology West China HospitalSichuan UniversityChengduSichuan ProvinceChina Laboratory of Anesthesia and Critical Care Medicine National-Local Joint Engineering Research Center of Translational Medicine of AnesthesiologyWest China HospitalSichuan UniversityChengduSichuan ProvinceChina Department of Anesthesiology Longgang District Maternity&Child Healthcare Hospital of Shenzhen City(Longgang Maternity and Child Institute of Shantou University Medical College)ShenzhenGuangdong ProvinceChina Department of Anesthesiology Affiliated Hospital of Zunyi Medical UniversityZunyiGuizhou ProvinceChina

Glial cells play crucial roles in regulating physiological and pathological functions,including sensation,the response to infection and acute injury,and chronic neurodegenerative *** cells include astrocytes,microglia,and oligodendrocytes in the central nervous system,and satellite glial cells and Schwann cells in the peripheral nervous *** the greater understanding of glial cell types and functional heterogeneity achieved through single-cell and single-nucleus RNA sequencing in animal models,few studies have investigated the transcriptomic profiles of glial cells in the human spinal ***,we used high-throughput single-nucleus RNA sequencing and spatial transcriptomics to map the cellular and molecular heterogeneity of astrocytes,microglia,and oligodendrocytes in the human spinal *** explore the conservation and divergence across species,we compared these findings with those from *** the human spinal cord,astrocytes,microglia,and oligodendrocytes were each divided into six distinct transcriptomic *** the mouse spinal cord,astrocytes,microglia,and oligodendrocytes were divided into five,four,and five distinct transcriptomic subclusters,*** comparative results revealed substantial heterogeneity in all glial cell types between humans and ***,we detected sex differences in gene expression in human spinal cord glial ***,in all astrocyte subtypes,the levels of NEAT1 and CHI3L1 were higher in males than in females,whereas the levels of CST3 were lower in males than in *** all microglial subtypes,all differentially expressed genes were located on the sex *** addition to sex-specific gene differences,the levels of MT-ND4,MT2A,MT-ATP6,MT-CO3,MT-ND2,MT-ND3,and MT-CO_(2) in all spinal cord oligodendrocyte subtypes were higher in females than in ***,the present dataset extensively characterizes glial cell heterogeneity and offers a valuable resource for explo

关键词： astrocyte glial cell human microglia oligodendrocyte sex differentiation single-nucleus RNA sequencing spatial transcriptomics species variation spinal cord

从“莲花化生”到“连生贵子”——论西夏“婴戏莲印花绢”童子纹样的文化内涵

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装饰 2019年第8期 70-73页

作者：魏亚丽宁夏大学西夏学研究院

西夏婴戏莲印花绢是西夏乃至宋元时期婴戏纹样的典型代表,承载着丰富的文化内涵。它既是佛教思想'莲花化生'的体现,也是儒家思想'连生贵子'的象征,表现了人们祈求子嗣繁衍、渴望子孙昌盛的社会文化心理,寄予着他们对美好生活的期盼。西... 详细信息

西夏婴戏莲印花绢是西夏乃至宋元时期婴戏纹样的典型代表,承载着丰富的文化内涵。它既是佛教思想'莲花化生'的体现,也是儒家思想'连生贵子'的象征,表现了人们祈求子嗣繁衍、渴望子孙昌盛的社会文化心理,寄予着他们对美好生活的期盼。西夏婴戏莲印花绢亦具象着西夏对中原文化的承袭及其与中原文化交往、交流、交融的史实,凸显了中华文化多元一体的特征。同时,流行于西夏各类载体上的婴戏图更多地注入了党项民族服饰元素和文化内涵,展现了西夏社会风俗生活的风貌。

关键词：西夏婴戏图莲花化生连生贵子