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“城市更新”语境下历史城区复兴策略——以绩溪历史城区为例

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华中建筑 2025年第1期43卷 96-101页

作者：刘仁义夏楷林安徽建筑大学建筑与规划学院

伴随着现代城市的高质量发展和人们生活水平的不断提高,城市发展与历史文化保护传承始终处于权衡得失的关键决策下,面对当前城市更新工作的不断推进,历史文化名城历史城区的保护与发展是摆在我们面前的又一“取舍”难题。该文以绩溪历... 详细信息

伴随着现代城市的高质量发展和人们生活水平的不断提高,城市发展与历史文化保护传承始终处于权衡得失的关键决策下,面对当前城市更新工作的不断推进,历史文化名城历史城区的保护与发展是摆在我们面前的又一“取舍”难题。该文以绩溪历史城区为例,基于绩溪历史城区保护更新现状与挑战,探讨在城市更新语境下,提出以有机更新和历史文化保护传承理念为核心的历史城区复兴策略,以指导绩溪历史城区复兴项目实践,从实践中总结凝练实施指导方法,以期为同类型的历史城区复兴提供参考。

关键词：历史城区复兴城市更新历史文化保护传承绩溪

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Nitrogen Under-and Over-supply Induces Distinct Protein Responses in Maize Xylem Sap

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Journal of Integrative Plant Biology 2012年第6期54卷 374-387页

作者： Chengsong Liao renyi liu Fusuo Zhang Chunjian Li Xuexian Li Department of Plant Nutrition College of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China Department of Botany and Plant Sciences University of CaliforniaRiversideCA 92521USA

Xylem sap primarily transports water and mineral nutrients such as nitrogen （N） from roots to shoots in vascular plants. However, it remains largely unknown how nitrogenous compounds, especially proteins in xylem sap, respond to N under- or over-supply. We found that reducing N supply increased amino-N percentage of total N in maize （Zea mays L.） xylem sap. Proteomic analysis showed that 23 proteins in the xylem sap of maize plants, including 12 newly identified ones, differentially accumulated in response to various N supplies. Fifteen of these 23 proteins were primarily involved in general abiotic or biotic stress responses, whereas the other five proteins appeared to respond largely to N under- or over-supply, suggesting distinct protein responses in maize xylem upon N under- and over-supply. Furthermore, one putative xylanase inhibitor and two putative O-glycosyl hydrolases had preferential gene expression in shoots.

关键词： Protein response gene expression Xylem sap Zea mays nitrogen under-supply nitrogen over-supply.

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DBSTC:an effective method for discovering cluster features with different spatiotemporal densities

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International Journal of Digital Earth 2018年第6期11卷 609-634页

作者： Zhenhong Du Yuhua Gu Chuanrong Zhang Feng Zhang renyi liu Jean Sequeira Geographic Information Science Institution School of Earth SciencesZhejiang UniversityHangzhouPeople’s Republic of China Zhejiang Key Laboratory of Geographic Information System Zhejiang UniversityHangzhouPeople’s Republic of China Geography and Center for Environmental Sciences and Engineering University of ConnecticutStorrsCTUSA Department of Computer Science Laboratoire des Sciences de l’Information et des Systemes(LSIS)Aix-Marseille UniversityMarseilleFrance

Spatiotemporal clustering is one of the most advanced research topics in geospatial data *** has been challenging to discover cluster features with different spatiotemporal densities in geographic information data *** paper presents an effective density-based spatiotemporal clustering algorithm(DBSTC).First,we propose a method to measure the degree of similarity of a core point to the geometric center of its spatiotemporal reachable neighborhood,which can effectively solve the isolated noise point misclassification problem that exists in the shared nearest neighbor ***,we propose an ordered reachable time window distribution algorithm to calculate the reachable time window for each spatiotemporal point in the data set to solve the problem of different clusters with different temporal *** effectiveness and advantages of the DBSTC algorithm are demonstrated in several simulated data *** addition,practical applications to seismic data sets demonstrate the capability of the DBSTC algorithm to uncover clusters of foreshocks and aftershocks and help to improve the understanding of the underlying mechanisms of dynamic spatiotemporal processes in digital earth.

关键词： Data mining spatiotemporal clustering density-based clustering ordered reachable time window distribution shared nearest neighbor

ParSymG: a parallel clustering approach for unsupervised classification of remotely sensed imagery

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International Journal of Digital Earth 2017年第5期10卷 471-489页

作者： Zhenhong Du Yuhua Gu Chuanrong Zhang Feng Zhang renyi liu Jean Sequeira Weidong Li Geographic Information Science Institution School of Earth SciencesZhejiang UniversityHangzhouPeople’s Republic of China Zhejiang Key Laboratory of Geographic Information System Zhejiang UniversityHan gzhouPeople’s Republic of China Geography and Center for Envrionmental Sciences and Engineering University of ConnecticutStorrsCTUSA Department of Computer Science Aix-Marseille UniversityMarseilleFrance

Symmetry is a common feature in the real *** may be used to improve a classification by using the point symmetry-based distance as a measure of ***,it is time consuming to calculate the point symmetry-based *** an efficient parallel point symmetry-based K-means algorithm(ParSym)has been propsed to overcome this limitation,ParSym may get stuck in sub-optimal solutions due to the K-means technique it *** this study,we proposed a novel parallel point symmetry-based genetic clustering(ParSymG)algorithm for unsupervised *** genetic algorithm was introduced to overcome the sub-optimization problem caused by inappropriate selection of initial centroids in ParSym.A message passing interface(MPI)was used to implement the distributed master–slave *** make the algorithm more time-efficient,a three-phase speedup strategy was adopted for population initialization,image partition,and kd-tree structure-based nearest neighbor *** advantages of ParSymG over existing ParSym and parallel K-means(PKM)alogithms were demonstrated through case studies using three different types of remotely sensed *** in speedup and time gain proved the excellent scalability of the ParSymG algorithm.

关键词： Unsupervised classification parallel clustering genetic algorithm point symmetry-based distance

Abiotic stress-associated microRNAs in plants： discovery, expression analysis, and evolution

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Frontiers in Biology 2013年第2期8卷 189-197页

作者： Blanca E. BARRERA-FIGUEROA Zhigang WU renyi liu Departamento de Biotecnologia Universidad del Papaloapan Tuxtepec Oaxaca 68301 Mexico Department of Botany and Plant Sciences University of California Riverside CA 92521 USA

Abiotic stresses such as drought, cold, and high salinity are among the most adverse factors that affect plant growth and yield in the field. MicroRNAs are small RNA molecules that regulate gene expression in a sequence-specific manner and play an important role in plant stress response. Identifying abiotic stress-associated microRNAs and understanding their function will help develop new strategies for improvement of plant stress tolerance. Here we highlight recent advances in our understanding of abiotic stress-associated miRNAs in various plants, with focus on their discovery, expression analysis, and evolution.

关键词： microRNA abiotic stress epigenetics gene expression evolution

Salicylic acid promotes quiescent center cell division through ROS accumulation and down-regulation of PLT1,PLT2,and WOX5

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Journal of Integrative Plant Biology 2021年第3期63卷 583-596页

作者： Zhuqing Wang Duoyan Rong Dixing Chen Yang Xiao renyi liu Shuang Wu Chizuko Yamamuro College of Life Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002China FAFU‐UCR Joint Center for Horticultural Biology and Metabolomics Haixia Institute of Science and TechnologyFujian Agriculture and Forestry UniversityFuzhou 350002China Hunan Engineering Research Centre of Lily Germplasm Resource in Novation and Deep Processing College of Life Sciences and ChemistryHunan University of TechnologyZhuzhou 412007China Center for Agroforestry Mega Data Science Haixia Institute of Science and TechnologyFujian Agriculture and Forestry UniversityFuzhou 350002China

Salicylic acid(SA)plays a crucial role in plant ***,its function in plant development is poorly *** quiescent center(QC),which maintains columella stem cells(CSCs)in the root apical meristem and typically exhibits low levels of cell division,is critical for root growth and ***,we show that the Arabidopsis thaliana SA overaccumulation mutant constitutively activated cell death 1(cad1),which exhibits increased cell division in the QC,is rescued by additional mutations in genes encoding the SA biosynthetic enzyme SALICYLIC ACID INDUCTION DEFFICIENT2(SID2)or the SA receptor NONEXPRESSER OF PR GENES1(NPR1),indicating that QC cell division in the cad1 mutant is promoted by the NPR1-dependent SA signaling *** application of exogenous SA also promoted QC cell division in wild-type plants in a dose-dependent manner and largely suppressed the expression of genes involved in QC maintenance,including those encoding the APETALA2(AP2)transcription factors PLETHORA1(PLT1)and PLT2,as well as the homeodomain transcription factor WUSCHEL-RELATED HOMEOBOX5(WOX5).Moreover,we showed that SA promotes reactive oxygen species(ROS)production,which is necessary for the QC cell division phenotype in the cad1 *** results provide insight into the function of SA in QC maintenance.

关键词： PLT1 PLT2 QC cell division reactive oxygen species salicylic acid WOX5

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JASMONATE-ZIM DOMAIN proteins engage Polycomb chromatin modifiers to modulate Jasmonate signaling in Arabidopsis

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Molecular Plant 2021年第5期14卷 732-747页

作者： Zicong Li Xiao Luo Yang Ou Huijun Jiao Li Peng Xing Fu Alberto P.Macho renyi liu Yuehui He Shanghai Center for Plant Stress Biology Chinese Academy of Sciences Center for Excellence in Molecular Plant SciencesShanghai 201602China Ministry of Education Key Laboratory of Plant Development and Environmental Adaption Biology School of Life SciencesShandong UniversityQingdao 266237China Department of Biological Sciences National University of SingaporeSingapore 117543Singapore Peking University Institute of Advanced Agricultural Sciences WeifangShandong 261000China Center for Agroforestry Mega Data Sciences Haixia Institute of Science and TechnologyFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of Protein and Plant Gene Research Peking-Tsinghua Center for Life SciencesSchool of Advanced Agriculture SciencesPeking UniversityBeijing 100871China

Jasmonate(JA)regulates various aspects of plant growth and development and stress responses,with prominent roles in male reproductive development and defenses against herbivores and necrotrophic ***-ZIM DOMAIN(JAZ)proteins are key regulators in the JA signaling pathway and function to repress the expression of JA-responsive ***,we show that JAZ proteins directly interact with several chromatin-associated Polycomb proteins to mediate repressive chromatin modifications at JA-responsive genes and,thus,their transcriptional repression in *** analyses revealed that the developmental defects,including anther and pollen abnormalities,resulting from loss or block of JA signaling were partially rescued by loss of Polycomb protein-mediated chromatin silencing(Polycomb repression).We further found that JAZ-mediated transcriptional repression during anther and pollen development requires Polycomb proteins at four key Regulatory *** of genome-wide occupancy of a Polycomb factor and transcriptome reprogramming in response to JA revealed that Polycomb repression is involved in the repression of various JA-responsive *** together,our study reveals an important chromatin-based mechanism for JAZ-mediated transcriptional repression and JA signaling in plants.

关键词： jasmonate JA response Polycomb proteins JAZ proteins anther development H3K27me3

BioNano Genome Map Resource for Oryza sativa *** and indica and Its Application in Rice Genome Sequence Correction and Gap Filling

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Molecular Plant 2017年第6期10卷 895-898页

作者： Ping Chen Xinyun Jing Baosheng Liao Yan Zhu Jiang Xu renyi liu Yinhong Zhao Xuan Li Key Laboratory of Synthetic Biology CAS Center for Excellence in Molecular Plant Sciences Institute of Plant Physiology and Ecology Chinese Academy of Sciences Shanghai 200032 China Institute of Chinese Materia Medica China Academy of Chinese Medical Sciences Beijing 100700 China Shanghai Centre for Plant Stress Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 201602 China China National Center for Biotechnology Development Building 4 No.16 Xisihuanzhonglu Beijing 100036 China University of Chinese Academy of Sciences Beijing 100049 China

Dear Editor As one of the most important staple food crops worldwide, rice is among the first plant species whose genomes were sequenced. The reference genome for Oryza sativa ssp. japonica variety Nipponbare was completed by the International Rice Genome Sequencing Project （IRGSP） using a bacterial artificial chromosome （BAC）-based cloning strategy （Matsumoto et al., 2005）.

关键词： BioNano Genome Map Resource Genome Sequence Correction Gap Filling

面向对象的地籍时空过程表达与数据更新模型研究

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测绘学报 2010年第3期39卷 303-309页

作者：张丰刘南刘仁义唐远彬浙江大学浙江省资源与环境信息系统重点实验室浙江杭州310028 浙江大学地理信息科学研究所浙江杭州310027

对地籍时空数据库持续更新,保持地籍时空数据库的现势性、拓扑一致性和完整性是现代地籍管理的生命所在。通过分析地籍对象变更过程中各类要素的联动变更行为,结合面向对象建模技术与时空演变过程表达思想,建立契合人们思维的以过程为... 详细信息

对地籍时空数据库持续更新,保持地籍时空数据库的现势性、拓扑一致性和完整性是现代地籍管理的生命所在。通过分析地籍对象变更过程中各类要素的联动变更行为,结合面向对象建模技术与时空演变过程表达思想,建立契合人们思维的以过程为核心的地籍时空数据更新模型。模型制定符合地籍对象时空拓扑演变规律的变更规则,实现地籍要素、土地利用要素和房屋的联动更新,并在地籍管理系统ReGIS中得到实现。

关键词：时空数据模型事件时空过程拓扑一致性更新

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