期刊文献+
共找到63,090篇文章
< 1 2 250 >
每页显示 20 50 100
Object-oriented GIS technology and mine geo-dynamic division information management
1
作者 LI Sheng FENG Fu XU Xue-feng 《中国有色金属学会会刊:英文版》 CSCD 2005年第S1期42-44,共3页
Object-oriented methodology was expected to revolutionize GIS design and development,making it easier and faster to design,through a common approach to conceptual modelling,database design,programming languages and us... Object-oriented methodology was expected to revolutionize GIS design and development,making it easier and faster to design,through a common approach to conceptual modelling,database design,programming languages and user interface tools.In addition,an object-oriented model provides some useful tools for data abstraction and data structuring,which augment the conventional tools and overcome some deficiencies inherent to the traditional relational model.The principles of object-oriented modelling applied to geographic data were put forward,and the concepts of object-oriented paradigm and characteristics of spatial data management were proposed in order to argument their compatibility. 展开更多
关键词 object-oriented gis geo-dynamic division
在线阅读 下载PDF
Hypergraph-based Object-oriented Model and Hypergraph Theory for GIS 被引量:2
2
作者 ZHANGJin GONGJianya 《Geo-Spatial Information Science》 2002年第1期37-43,共7页
This paper discusses the features and relevant theories of GIS spatial data model based on hypergraph,etc.The integrated concept model based on hypergraph and object_oriented model (HOOM) is proposed by the authors.Th... This paper discusses the features and relevant theories of GIS spatial data model based on hypergraph,etc.The integrated concept model based on hypergraph and object_oriented model (HOOM) is proposed by the authors.The principal contribution of this paper is that we study the K_section and other theories of hypergraph.An application example using HOOM is given at the end of the paper. 展开更多
关键词 HYPERGRAPH object_oriented gis spatial data model HBDS DEM
在线阅读 下载PDF
DEVELOPMENT OF A GIS DATA MODEL WITH SPATIAL,TEMPORAL AND ATTRIBUTE COMPONENTS BASED ON OBJECT-ORIENTED APPROACH 被引量:2
3
作者 SHI Wenzhong ZHANG Minwen 《Geo-Spatial Information Science》 2000年第1期17-23,共7页
This paper presents a conceptual data model, the STA-model, for handling spatial, temporal and attribute aspects of objects in GIS. The model is developed on the basis of object-oriented modeling approach. This model ... This paper presents a conceptual data model, the STA-model, for handling spatial, temporal and attribute aspects of objects in GIS. The model is developed on the basis of object-oriented modeling approach. This model includes two major parts: (a) modeling the signal objects by STA-object elements, and (b) modeling relationships between STA-objects. As an example, the STA-model is applied for modeling land cover change data with spatial, temporal and attribute components. 展开更多
关键词 object-oriENTATION gis data modeling spatial temporal and attribute model
在线阅读 下载PDF
X-OODM:Leveraging Explainable Object-Oriented Design Methodology for Multi-Domain Sentiment Analysis
4
作者 Abqa Javed Muhammad Shoaib +2 位作者 Abdul Jaleel Mohamed Deriche Sharjeel Nawaz 《Computers, Materials & Continua》 2025年第3期4977-4994,共18页
Incorporation of explainability features in the decision-making web-based systems is considered a primary concern to enhance accountability,transparency,and trust in the community.Multi-domain Sentiment Analysis is a ... Incorporation of explainability features in the decision-making web-based systems is considered a primary concern to enhance accountability,transparency,and trust in the community.Multi-domain Sentiment Analysis is a significant web-based system where the explainability feature is essential for achieving user satisfaction.Conventional design methodologies such as object-oriented design methodology(OODM)have been proposed for web-based application development,which facilitates code reuse,quantification,and security at the design level.However,OODM did not provide the feature of explainability in web-based decision-making systems.X-OODM modifies the OODM with added explainable models to introduce the explainability feature for such systems.This research introduces an explainable model leveraging X-OODM for designing transparent applications for multidomain sentiment analysis.The proposed design is evaluated using the design quality metrics defined for the evaluation of the X-OODM explainable model under user context.The design quality metrics,transferability,simulatability,informativeness,and decomposability were introduced one after another over time to the evaluation of the X-OODM user context.Auxiliary metrics of accessibility and algorithmic transparency were added to increase the degree of explainability for the design.The study results reveal that introducing such explainability parameters with X-OODM appropriately increases system transparency,trustworthiness,and user understanding.The experimental results validate the enhancement of decision-making for multi-domain sentiment analysis with integration at the design level of explainability.Future work can be built in this direction by extending this work to apply the proposed X-OODM framework over different datasets and sentiment analysis applications to further scrutinize its effectiveness in real-world scenarios. 展开更多
关键词 Measurable explainable web-based application object-oriented design sentiment analysis MULTI-DOMAIN
在线阅读 下载PDF
一起110kV GIS断路器本体无法正常分合闸故障分析与处理
5
作者 戚林晗 王海林 《中国设备工程》 2026年第2期183-185,共3页
GIS断路器作为电力系统中的关键组件,其运行的安全性和稳定性会直接影响电网运行质量。但在实际运行过程中,GIS断路器可能会出现各种故障,其中无法正常分合闸是较为常见的一种。这类故障不仅会影响电力系统的正常运行,还可能对设备和人... GIS断路器作为电力系统中的关键组件,其运行的安全性和稳定性会直接影响电网运行质量。但在实际运行过程中,GIS断路器可能会出现各种故障,其中无法正常分合闸是较为常见的一种。这类故障不仅会影响电力系统的正常运行,还可能对设备和人员安全构成威胁。因此,对GIS断路器故障进行深入分析,并采取有效的处理措施,对于提高电力系统的稳定性和安全性具有重要意义。本文对一起110kV GIS断路器本体无法正常分合闸的故障分析与处理过程展开探究,通过现场检查、原因分析、改进措施等步骤,全面剖析故障根源,并提出有效的解决方案,旨在为相关人员提供参考。 展开更多
关键词 gis断路器 分合闸故障 传动连杆
在线阅读 下载PDF
220 kV GIS组合电器不停电扩建研究
6
作者 黄晓 《通讯世界》 2026年第1期116-118,共3页
为保障电力系统的供电稳定性,针对220 kV气体绝缘开关(gas insulated switch,GIS)组合电器的不停电扩建开展研究,分析220 kV GIS组合电器扩建停电的原因,详细阐述不停电扩建工作要点,其中前期工作包括电力需求调研、设备及材料准备、人... 为保障电力系统的供电稳定性,针对220 kV气体绝缘开关(gas insulated switch,GIS)组合电器的不停电扩建开展研究,分析220 kV GIS组合电器扩建停电的原因,详细阐述不停电扩建工作要点,其中前期工作包括电力需求调研、设备及材料准备、人员培训、方案制定等,扩建过程采用双断口隔离开关技术,扩建试验借助同频同相耐压技术,以期为相关从业人员提供参考。 展开更多
关键词 gis组合电器 不停电扩建 双断口隔离开关
在线阅读 下载PDF
220 kV GIS断路器三相不一致动作故障分析
7
作者 周童浩 陈孝信 +3 位作者 赵琳 王绍安 朱其杰 龚夕霞 《电力安全技术》 2026年第1期71-74,共4页
针对一起220 kV GIS断路器遥合操作三相不一致动作故障,进行了现场故障录波及后台信息分析、二次回路检查、机构外观检查、分合闸试验、线圈及回路阻值测试、机械特性测试和合闸线圈电流波形测试。综合一二次信息和试验结果认为,该次事... 针对一起220 kV GIS断路器遥合操作三相不一致动作故障,进行了现场故障录波及后台信息分析、二次回路检查、机构外观检查、分合闸试验、线圈及回路阻值测试、机械特性测试和合闸线圈电流波形测试。综合一二次信息和试验结果认为,该次事故的原因是操动机构内部换向阀等部件由于老化、异物等因素存在卡涩,导致合闸时间增加、合闸时油压大幅下降,甚至无法正常合闸,最后提出相应的整改建议。 展开更多
关键词 气体绝缘封闭组合电器 断路器 三相不一致 合闸失败
在线阅读 下载PDF
OBJECT-ORIENTED IMPLEMENTATION OF EXPERT SYSTEMS FOR ENGINE LUBRICATING OIL INSPECTION
8
作者 杨忠 左洪福 +2 位作者 刘正埙 干敏梁 吴惠祥 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1997年第2期170-176,共7页
The inspection of engine lubricating oil can give an indication of the internal condition of an engine. By means of the Object-Oriented Programming (OOP), an expert system is developed in this paper to computerize the... The inspection of engine lubricating oil can give an indication of the internal condition of an engine. By means of the Object-Oriented Programming (OOP), an expert system is developed in this paper to computerize the inspection. The traditional components of an expert system, such us knowledge base, inference engine and user interface are reconstructed and integrated, based on the Microsoft Foundation Class (MFC) library. To testify the expert system, an inspection example is given at the end of this paper. 展开更多
关键词 expert systems lubricating oil object-oriented engines INSPECTION
在线阅读 下载PDF
基于BIM+3D GIS的智慧地下管线系统研究 被引量:2
9
作者 张雪光 黄雄建 陈松 《智能建筑与智慧城市》 2025年第4期120-122,共3页
随着城市化的推进,地下空间的开发利用越发密集,其复杂度也日益增加,为实现地下管线系统的高效、智能化管理,构建智慧地下管线系统变得尤为关键。文章首先分析了建筑信息模型(BIM)与三维地理信息系统(3D GIS)技术在地下管线系统中的应... 随着城市化的推进,地下空间的开发利用越发密集,其复杂度也日益增加,为实现地下管线系统的高效、智能化管理,构建智慧地下管线系统变得尤为关键。文章首先分析了建筑信息模型(BIM)与三维地理信息系统(3D GIS)技术在地下管线系统中的应用优势,然后,通过整体效果分析,证明了本文所采取措施的有效性,实现了对城市地下管线资源的有效管理和动态监控,显著提升了应急响应效率,可为相关人员提供实践参考。 展开更多
关键词 BIM 3D gis 智慧地下管线系统
在线阅读 下载PDF
Analysis and Design of Soils and Terrain Digital Database (SOTER) Management System Based on Object-Oriented Method 被引量:4
10
作者 ZHANGHAITAO ZHOUYONG +2 位作者 R.V.BIRNIE A.SIBBALD RENYI 《Pedosphere》 SCIE CAS CSCD 2003年第2期111-120,共10页
A SOTER management system was developed by analyzing, designing, programming, testing, repeated proceeding and progressing based on the object-oriented method. The function of the attribute database management is inhe... A SOTER management system was developed by analyzing, designing, programming, testing, repeated proceeding and progressing based on the object-oriented method. The function of the attribute database management is inherited and expanded in the new system. The integrity and security of the SOTER database are enhanced. The attribute database management, the spatial database management and the model base are integrated into SOTER based on the component object model (COM), and the graphical user interface (GUI) for Windows is used to interact with clients, thus being easy to create and maintain the SOTER, and convenient to promote the quantification and automation of soil information application. 展开更多
关键词 component object model database model object-oriented SOTER
在线阅读 下载PDF
高参数363 kV GIS设备研发及设计
11
作者 张凯 高振奎 +2 位作者 李建征 崔军阳 陈蕾 《高压电器》 北大核心 2025年第2期223-229,236,共8页
363 kV线路作为西北地区的主干线路,发展形式良好,市场前景广阔。但随着科技的进步,某公司的363 kV产品已无法适应日趋激烈的竞争环境。文中以断路器、隔离/接地/快速接地开关、母线为基础,介绍公司新研制的363 kV GIS整体参数、产品设... 363 kV线路作为西北地区的主干线路,发展形式良好,市场前景广阔。但随着科技的进步,某公司的363 kV产品已无法适应日趋激烈的竞争环境。文中以断路器、隔离/接地/快速接地开关、母线为基础,介绍公司新研制的363 kV GIS整体参数、产品设计和型式试验情况。断路器设计时分析了大电流容量试验电弧能量对弧触头的烧蚀情况,断口间五柱支撑结构;隔离/接地/快速接地开关设计时分析了绝缘、温升等;母线设计时分析了导体温升和绝缘盆子电场、机械强度。型式试验表明:新研制的363 kV GIS满足高参数要求,断路器额定短路电流63 kA,标准时间常数120 ms,快速接地开关达到超“B”类;目前已取得第三方全套型式试验报告,正式应用在中国西北地区变电站工程项目。 展开更多
关键词 363 kV gis 高参数 标准时间常数 120 ms 型式试验
在线阅读 下载PDF
Integrating vegetation phenological characteristics and polarization features with object-oriented techniques for grassland type identification 被引量:2
12
作者 Bin Sun Pengyao Qin +5 位作者 Changlong Li Zhihai Gao Alan Grainger Xiaosong Li Yan Wang Wei Yue 《Geo-Spatial Information Science》 CSCD 2024年第3期794-810,共17页
Due to the small size,variety,and high degree of mixing of herbaceous vegetation,remote sensing-based identification of grassland types primarily focuses on extracting major grassland categories,lacking detailed depic... Due to the small size,variety,and high degree of mixing of herbaceous vegetation,remote sensing-based identification of grassland types primarily focuses on extracting major grassland categories,lacking detailed depiction.This limitation significantly hampers the development of effective evaluation and fine supervision for the rational utilization of grassland resources.To address this issue,this study concentrates on the representative grassland of Zhenglan Banner in Inner Mongolia as the study area.It integrates the strengths of Sentinel-1 and Sentinel-2 active-passive synergistic observations and introduces innovative object-oriented techniques for grassland type classification,thereby enhancing the accuracy and refinement of grassland classification.The results demonstrate the following:(1)To meet the supervision requirements of grassland resources,we propose a grassland type classification system based on remote sensing and the vegetation-habitat classification method,specifically applicable to natural grasslands in northern China.(2)By utilizing the high-spatial-resolution Normalized Difference Vegetation Index(NDVI)synthesized through the Spatial and Temporal Non-Local Filter-based Fusion Model(STNLFFM),we are able to capture the NDVI time profiles of grassland types,accurately extract vegetation phenological information within the year,and further enhance the temporal resolution.(3)The integration of multi-seasonal spectral,polarization,and phenological characteristics significantly improves the classification accuracy of grassland types.The overall accuracy reaches 82.61%,with a kappa coefficient of 0.79.Compared to using only multi-seasonal spectral features,the accuracy and kappa coefficient have improved by 15.94%and 0.19,respectively.Notably,the accuracy improvement of the gently sloping steppe is the highest,exceeding 38%.(4)Sandy grassland is the most widespread in the study area,and the growth season of grassland vegetation mainly occurs from May to September.The sandy meadow exhibits a longer growing season compared with typical grassland and meadow,and the distinct differences in phenological characteristics contribute to the accurate identification of various grassland types. 展开更多
关键词 Grassland types vegetation phenological characteristics polarization feature integrated active and passive remote sensing object-oriented classification
原文传递
220 kV GIS线路接地开关接地原因分析及预防措施
13
作者 孙更 马鸿君 《电世界》 2025年第6期31-33,共3页
本文讲述了一起220 kV气体绝缘金属封闭开关设备(GIS)线路接地开关在送电过程中发生接地的缺陷情况,介绍了接地开关动作原理及检修调试工艺,分析了造成本次接地故障的主要原因并提出相应预防措施。该缺陷主要是检修工艺不当及设备位置... 本文讲述了一起220 kV气体绝缘金属封闭开关设备(GIS)线路接地开关在送电过程中发生接地的缺陷情况,介绍了接地开关动作原理及检修调试工艺,分析了造成本次接地故障的主要原因并提出相应预防措施。该缺陷主要是检修工艺不当及设备位置指示不清造成的,在实际作业现场比较具有代表性,对该类型设备检修现场有很好的指导和启示作用。 展开更多
关键词 接地开关 220 kV gis
在线阅读 下载PDF
高海拔地区750 kV GIS设备常见问题及运行维护措施分析
14
作者 刘德明 《科技创新与生产力》 2025年第6期115-117,121,共4页
文章分析了高海拔地区750 kV GIS设备运行常见问题,包括触头过热、SF6气体成分超标以及气室内SF6气体气压较低等问题,并针对上述问题提出了高海拔地区750 kV GIS设备的运行维护的环境要求、定期检查维护与在线监测以及异常情况维护3个... 文章分析了高海拔地区750 kV GIS设备运行常见问题,包括触头过热、SF6气体成分超标以及气室内SF6气体气压较低等问题,并针对上述问题提出了高海拔地区750 kV GIS设备的运行维护的环境要求、定期检查维护与在线监测以及异常情况维护3个方面的解决措施,以期为高海拔地区750 kV GIS设备运行维护实践提供理论和实践上的参考和借鉴。 展开更多
关键词 750 kV gis设备 高海拔地区 运行维护措施
在线阅读 下载PDF
220kV GIS电缆终端爆炸事故原因分析及处理
15
作者 骆继康 白瑜 +1 位作者 任鹏辉 田锋华 《电力系统装备》 2025年第9期134-136,共3页
对有色电厂3月27日14:382212电铝二线跳闸事件进行了深入分析。通过现场勘查、保护动作分析以及对故障设备的详细检查,探究事故原因并提出相应的防范措施,以提高电力系统的可靠性与安全性,为电力设备的运行维护提供参考。
关键词 220 kV gis电缆终端 电场分布 绝缘老化 预防措施
在线阅读 下载PDF
The System for Managing Reusable Object-Oriented Software Components
16
作者 王晓芬 郭福顺 李莲治 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 1994年第2期26-29,共4页
TheSystemforManagingReusableObject-OrientedSoftwareComponents¥(王晓芬)(郭福顺)(李莲治)WANGXiaofen;GUOFushun;LILianzhi... TheSystemforManagingReusableObject-OrientedSoftwareComponents¥(王晓芬)(郭福顺)(李莲治)WANGXiaofen;GUOFushun;LILianzhi(Dept.ofComputerS... 展开更多
关键词 ss: SOFTWARE REUSE object-oriented SOFTWARE components
在线阅读 下载PDF
新安装35kV GIS充充气柜试验方法
17
作者 王吉峰 《大众标准化》 2025年第19期119-121,共3页
文章针对某企业35kV变电站改造项目,由固定安装空气绝缘式开关柜改造为GIS充气式开关柜,根据设备结构特点,对安装过程及投运前电气设备预防性试验进行深入研究和分析,总结出针对性强、方法得当的试验方法。该方法可有效考量各单体设备及... 文章针对某企业35kV变电站改造项目,由固定安装空气绝缘式开关柜改造为GIS充气式开关柜,根据设备结构特点,对安装过程及投运前电气设备预防性试验进行深入研究和分析,总结出针对性强、方法得当的试验方法。该方法可有效考量各单体设备及GIS充气柜的整体电气性能,满足设备送电前试验要求,确保设备安全送电并投运。 展开更多
关键词 gis充气柜 试验方法 研究分析
在线阅读 下载PDF
基于Arc GIS技术的温州市体育非遗与乡村旅游融合空间布局研究
18
作者 王剑 《文体用品与科技》 2025年第4期124-126,共3页
非物质文化遗产与旅游产业的有机结合对于协调区域文旅融合发展、活化中华优秀传统文化具有十分重要的意义。研究目的:对温州市体育非遗与乡村旅游资源分布进行GIS地理空间分析,分别进行空间集聚性、空间核密度和缓冲区分析;揭示温州市... 非物质文化遗产与旅游产业的有机结合对于协调区域文旅融合发展、活化中华优秀传统文化具有十分重要的意义。研究目的:对温州市体育非遗与乡村旅游资源分布进行GIS地理空间分析,分别进行空间集聚性、空间核密度和缓冲区分析;揭示温州市体育非遗与乡村旅游融合发展的空间现状,提出布局模式。研究方法:文献资料法、专家访谈法、实地考察法、数理统计法、GIS地理空间分析法等方法。研究结果:根据温州市体育非遗与乡村旅游资源空间分布情况,大致分为5种乡村体育非物质文化旅游模式,分别是东部观光表演型、西部娱乐康养型、南部节庆表演型、北部研学体验型和中部竞赛型。 展开更多
关键词 Arc gis 体育非遗 乡村旅游 融合 空间布局
在线阅读 下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部