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DESIGN AND APPLICATION OF DYNAMIC MONITORING AND VISUALIZATION MANAGEMENT INFORMATION SYSTEM OF KARST LAND ROCKY DESERTIFICATION 被引量:3
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作者 HUBao-qing LIAOChi-mei YANZhi-qiang LILing QINKai-xian 《Chinese Geographical Science》 SCIE CSCD 2004年第2期122-128,共7页
In order to study the spatial-temporal change and environmental management of regional karst LUCC (land use and land cover change) and its causative environmental effect-rocky desertification by integrating qualitativ... In order to study the spatial-temporal change and environmental management of regional karst LUCC (land use and land cover change) and its causative environmental effect-rocky desertification by integrating qualitative analysis and quantitative analysis, and relying on RS, GIS and GPS (3S) techniques, karst land rocky derification dynamic monitoring and visualization management information system (KLRD.DMVM.IS) is framed, which includes design aim and structure model, function design, database design and model system design. The model system design gives priority to dynamic monitoring, drive force diagnosis, comprehensive evaluation and decision support of karst rocky desertification. From the viewpoint of model type, mathematic expression and its meaning, the dynamic monitoring models are concretely devised to reflect the spatial and temporal changing features and the trend of karst LUCC and rocky desertification. Taking Du'an Yao Autonomic County of Guangxi as an example, the KLRD.DMVM.IS is systematically analyzed in the application of the process and trend of karst LUCC and rocky desertification in Du'an County, and it provides the technical support for the study on karst land rocky desertification. 展开更多
关键词 karst rocky desertification GIS secondary development dynamic monitoring visualization management
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Real-Time Data and Visualization Monitoring of Computer Numerical Control Machine Tools Based on Hyper Text Markup Language 5 被引量:1
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作者 WU Yan XIAO Lijun +2 位作者 DING Xiaoying WANG Bing ZHANG Jieren 《Journal of Donghua University(English Edition)》 EI CAS 2019年第3期261-266,共6页
In order to ensure the safety,quality and efficiency of computer numerical control(CNC)machine tool processing,a real-time monitoring and visible solution for CNC machine tools based on hyper text markup language(HTML... In order to ensure the safety,quality and efficiency of computer numerical control(CNC)machine tool processing,a real-time monitoring and visible solution for CNC machine tools based on hyper text markup language(HTML)5 is proposed.The characteristics of the real-time monitoring technology of CNC machine tools under the traditional Client/Server(C/S)structure are compared and analyzed,and the technical drawbacks are proposed.Web real-time communication technology and browser drawing technology are deeply studied.A real-time monitoring and visible system for CNC machine tool data is developed based on Metro platform,combining WebSocket real-time communication technology and Canvas drawing technology.The system architecture is given,and the functions and implementation methods of the system are described in detail.The practical application results show that the WebSocket real-time communication technology can effectively reduce the bandwidth and network delay and save server resources.The numerical control machine data monitoring system can intuitively reflect the machine data,and the visible effect is good.It realizes timely monitoring of equipment alarms and prompts maintenance and management personnel. 展开更多
关键词 computer numerical control(CNC) machine tools real-time monitoring visualIZATION hyper text MARKUP language(HTML)5 WebSocket CANVAS
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Visualization Research and Application of Water Quality Monitoring Data Based on ECharts 被引量:4
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作者 Yifu Sheng Weida Chen +2 位作者 Huan Wen Haijun Lin Jianjun Zhang 《Journal on Big Data》 2020年第1期1-8,共8页
Water resources are one of the basic resources for human survival,and water protection has been becoming a major problem for countries around the world.However,most of the traditional water quality monitoring research... Water resources are one of the basic resources for human survival,and water protection has been becoming a major problem for countries around the world.However,most of the traditional water quality monitoring research work is still concerned with the collection of water quality indicators,and ignored the analysis of water quality monitoring data and its value.In this paper,by adopting Laravel and AdminTE framework,we introduced how to design and implement a water quality data visualization platform based on Baidu ECharts.Through the deployed water quality sensor,the collected water quality indicator data is transmitted to the big data processing platform that deployed on Tencent Cloud in real time through the 4G network.The collected monitoring data is analyzed,and the processing result is visualized by Baidu ECharts.The test results showed that the designed system could run well and will provide decision support for water resource protection. 展开更多
关键词 Water quality monitoring echarts data visualization
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Visualized uranium rapid monitoring system based on self-enhanced electrochemiluminescence-imaging of amidoxime functionalized polymer nanoparticles
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作者 Ziyu Wang Hang Gao +4 位作者 Peng Liu Xinqi Wu Qian Li Jing-Juan Xu Daoben Hua 《Chinese Chemical Letters》 SCIE CAS CSCD 2022年第7期3456-3460,共5页
The development of uranyl ion detection technology has exhibited its significance in public security and environmental fields for the radioactivity and chemical toxicity of uranyl ion.The WHO standard of uranyl ion ma... The development of uranyl ion detection technology has exhibited its significance in public security and environmental fields for the radioactivity and chemical toxicity of uranyl ion.The WHO standard of uranyl ion makes it necessary to develop highly sensitive uranyl rapid warning system in drinking water monitoring.Herein,a visualized rapid warning system for trace uranyl ion is carried out based on electrochemiluminescence(ECL) imaging technology to give an ultra-low limit of detection(LOD) and high selectivity.Amidoxime,a bi-functional group with both uranyl ion capturing and co-reactive functions,is modified on a conjugated polymer backbone with strong ECL signal to be prepared into three-in-one polymer nanoparticles(PNPs) with self-enhanced ECL property.The captured uranyl ion can enhance the ECL signal of PNPs via resonance energy transfer process to give the LOD as 0.5 ng/L,which is much lower than the known luminescent uranyl sensors.Furthermore,ECL imaging technology is introduced into realizing visualized uranyl rapid warning,and can be successfully applied on natural water samples.This study provides a novel strategy for uranyl rapid warning,and shows its potential meaning in public security and environmental fields. 展开更多
关键词 visualized monitoring ELECTROCHEMILUMINESCENCE AMIDOXIME URANIUM Public security
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Design and implementation of a visual monitoring system to ensure safety in the water surrounding a container vessel
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作者 金永兴 王则胜 +1 位作者 陈锦标 卜平 《Journal of Marine Science and Application》 2008年第3期200-204,共5页
Container vessels navigate among the world's ports, frequently passing through narrow and congested waters. Due to the many layers of containers on a container vessel's decks, it is difficult for the crew to be awar... Container vessels navigate among the world's ports, frequently passing through narrow and congested waters. Due to the many layers of containers on a container vessel's decks, it is difficult for the crew to be aware of all fishing vessels and other obstacles in a container vessel's radar observation blind zone. This greatly increases the risk of collisions and other accidents. Given such great challenges to safe navigation and safety management with container vessels, their security risks are severe. An effective visual monitoring system can improve the safety of the water area surrounding container vessel by eliminating a vessel's observation blind zone, providing an effective safety measure for vessels navigating fishing zones and other troublesome areas. The system has other functions, such as accident recording, ship security, and monitoring of loading and unloading operations, thus ensuring the ship operates safely. Six months' trial operation showed that the system facilitates safe navigation of container vessels. 展开更多
关键词 observation blind zone navigation safety ship security visual monitoring system
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Real-Time Grouting Monitoring and Visualization Analysis System for Dam Foundation Curtain Grouting
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作者 樊贵超 钟登华 +3 位作者 任炳昱 崔博 李晓超 岳攀 《Transactions of Tianjin University》 EI CAS 2016年第6期493-501,共9页
A real-time monitoring and 3D visualization analysis system is proposed for dam foundation curtain grouting. Based on the real-time control technology, the optimization method and the set theory, a mathematical model ... A real-time monitoring and 3D visualization analysis system is proposed for dam foundation curtain grouting. Based on the real-time control technology, the optimization method and the set theory, a mathematical model of the system is established. The real-time collection and transmission technology of the grouting data provides a data foundation for the system. The real-time grouting monitoring and dynamic alarming method helps the system control the grouting quality during the grouting process, thus, the abnormalities of grouting, such as jacking and hydraulic uplift, can be effectively controlled. In addition, the 3D grouting visualization analysis technology is proposed to establish the grouting information model(GIM). The GIM provides a platform to visualize and analyze the grouting process and results. The system has been applied to a hydraulic project of China as a case study, and the application results indicate that the real-time grouting monitoring and 3D visualization analysis for the grouting process can help engineers control the grouting quality more efficiently. 展开更多
关键词 dam foundation curtain grouting real-time monitoring dynamic alarming model grouting informationmodel (GIM) 3D visualization analysis
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A New Method for Visual Real-Time Monitoring of Low Frequency Oscillation
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作者 Bo-Jian Wen Shi-Ming Li +2 位作者 Chong-Wen Zhou Jun Luo Fang-Zong Wang 《Smart Grid and Renewable Energy》 2015年第4期59-66,共8页
Visual real-time monitoring is the premise of low frequency oscillation control in power grids. This paper showed a visual method for the control center of power grids to monitor low frequency oscillation. It processe... Visual real-time monitoring is the premise of low frequency oscillation control in power grids. This paper showed a visual method for the control center of power grids to monitor low frequency oscillation. It processed the PMU real-time data with incomplete S-transform, and converted the waveforms to two-dimensional time-frequency figures which showed the initial time, frequency and amplitude of each low frequency oscillation mode directly. GPU was used to show figures and calculate FFT with the purpose of improving calculation efficiency. The results of practical cases show that the real-time characters of low frequency oscillation can be identified availably by this visualization real-time monitoring method which is helpful and suitable for practical application. 展开更多
关键词 Low Frequency OSCILLATION INCOMPLETE S-TRANSFORM Real-Time monitoring visual GPU
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Research on Dynamic Monitoring Algorithm of Visual Safety Distance in Highway
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作者 Jiajia Zhang Yu Liu +1 位作者 Jianming Li Yanhua Guan 《Journal of Geoscience and Environment Protection》 2016年第11期6-12,共8页
To develop the dynamic monitoring algorithm of visual safety distance in highway, by using the highway video traffic monitoring system, the research platform of four kinds of terrain environment in plateau, mountainou... To develop the dynamic monitoring algorithm of visual safety distance in highway, by using the highway video traffic monitoring system, the research platform of four kinds of terrain environment in plateau, mountainous area, plain and coastal area is established. Results show that through the contrast between the sample data and visibility train of thought, based on the theory of mathematical morphology, expressway visibility dynamic monitoring image information system can be established. Based on the theory of the measurement of the basic formula of visibility, the dynamic model of the optimization is established, set up 200 meters distance visual observation target system, research visual range detection algorithm process. 展开更多
关键词 The Highway visual Range Dynamic monitoring Mathematical Model
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Design of a Web Crawler for Water Quality Monitoring Data and Data Visualization
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作者 Ziwen Yu Jianjun Zhang +6 位作者 Wenwu Tan Ziyi Xiong Peilun Li Liangqing Meng Haijun Lin Guang Sun Peng Guo 《Journal on Big Data》 2022年第2期135-143,共9页
Many countries are paying more and more attention to the protection of water resources at present,and how to protect water resources has received extensive attention from society.Water quality monitoring is the key wo... Many countries are paying more and more attention to the protection of water resources at present,and how to protect water resources has received extensive attention from society.Water quality monitoring is the key work to water resources protection.How to efficiently collect and analyze water quality monitoring data is an important aspect of water resources protection.In this paper,python programming tools and regular expressions were used to design a web crawler for the acquisition of water quality monitoring data from Global Freshwater Quality Database(GEMStat)sites,and the multi-thread parallelism was added to improve the efficiency in the process of downloading and parsing.In order to analyze and process the crawled water quality data,Pandas and Pyecharts are used to visualize the water quality data to show the intrinsic correlation and spatiotemporal relationship of the data. 展开更多
关键词 Water quality monitoring data web crawler data visualization
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Monitoring Information 3D Visualization for Super-Filling Loess Project
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作者 CHEN Wei XU Ben-zhu +1 位作者 DENG Yuan-yuan ZHENG Li-ping 《Computer Aided Drafting,Design and Manufacturing》 2015年第4期13-18,共6页
The construction of high-filled loess project has some engineering and technical challenges, such as excavation of earth and backfilling of earth are both large, complex construction environment, variety of influence ... The construction of high-filled loess project has some engineering and technical challenges, such as excavation of earth and backfilling of earth are both large, complex construction environment, variety of influence factors. According to this situation, this paper presents a dynamic 3D visualization method for high-filled project based on volume rendering. Through comparative analysis and visual analysis, realized at different times of the Loess fill internal detection data visualization and analysis presented. The results show that this visualization method can directly and accurately display the construction process, help decision makers master construction information and process. 展开更多
关键词 super-filling loess project volume rendering monitoring information visualization
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Remote Visualization of High-Speed Rail Power Quality Monitoring
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作者 孙青 罗桂林 曹庆华 《Journal of Donghua University(English Edition)》 EI CAS 2015年第2期288-293,共6页
The visualization techniques were explored for power quality monitoring.And remote visualization solutions were proposed for highspeed rail power quality monitoring.Taking the Beijing-Shanghai highspeed rail power mon... The visualization techniques were explored for power quality monitoring.And remote visualization solutions were proposed for highspeed rail power quality monitoring.Taking the Beijing-Shanghai highspeed rail power monitoring as a study case,a remote visualization client,based on our proposed solutions,was developed for high-speed rail power quality monitoring to efficiently support power quality data analysis of the electricity business.The solutions collected data from monitoring stations deployed along the high-speed rail route and visualized the data set with a variety of visualization technologies to alert the specific stations of catastrophic events.The proposed solutions have been proved to be effective in supporting decision-making for the railway power scheduling and providing diagnosis information for quickly spotting any possible runtime failure in operation. 展开更多
关键词 visualization alert runtime quickly histogram alarm animation catastrophic electricity rendering
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COVID-19 Public Opinion and Emotion Monitoring System Based on Time Series Thermal New Word Mining 被引量:6
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作者 Yixian Zhang Jieren Cheng +6 位作者 Yifan Yang Haocheng Li Xinyi Zheng Xi Chen Boyi Liu Tenglong Ren Naixue Xiong 《Computers, Materials & Continua》 SCIE EI 2020年第9期1415-1434,共20页
With the spread and development of new epidemics,it is of great reference value to identify the changing trends of epidemics in public emotions.We designed and implemented the COVID-19 public opinion monitoring system... With the spread and development of new epidemics,it is of great reference value to identify the changing trends of epidemics in public emotions.We designed and implemented the COVID-19 public opinion monitoring system based on time series thermal new word mining.A new word structure discovery scheme based on the timing explosion of network topics and a Chinese sentiment analysis method for the COVID-19 public opinion environment are proposed.Establish a“Scrapy-Redis-Bloomfilter”distributed crawler framework to collect data.The system can judge the positive and negative emotions of the reviewer based on the comments,and can also reflect the depth of the seven emotions such as Hopeful,Happy,and Depressed.Finally,we improved the sentiment discriminant model of this system and compared the sentiment discriminant error of COVID-19 related comments with the Jiagu deep learning model.The results show that our model has better generalization ability and smaller discriminant error.We designed a large data visualization screen,which can clearly show the trend of public emotions,the proportion of various emotion categories,keywords,hot topics,etc.,and fully and intuitively reflect the development of public opinion. 展开更多
关键词 COVID-19 public opinion monitoring data mining Chinese sentiment analysis data visualization
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Supervised projection with adaptive label assignment for enhanced visualization and chemical process monitoring
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作者 Zhi Li Junfeng Chen +1 位作者 Kaige Xue Xin Peng 《Frontiers of Chemical Science and Engineering》 2025年第7期15-32,共18页
Data-driven process monitoring methods are widely used in industrial tasks,with visual monitoring enabling operators to intuitively understand operational status,which is vital for maximizing industrial safety and pro... Data-driven process monitoring methods are widely used in industrial tasks,with visual monitoring enabling operators to intuitively understand operational status,which is vital for maximizing industrial safety and production efficiency.However,high-dimensional industrial data often exhibit complex structures,making the traditional 2D visualization methods ineffective at distinguishing different fault types.Thus,a visual process monitoring method that combines supervised uniform manifold approximation and projection with a label assignment strategy is proposed herein.First,the proposed supervised projection method enhances the visualization step by incorporating label information to guide the nonlinear dimensionality reduction process,improving the degrees of class separation and intraclass compactness.Then,to address the lack of label information for online samples,a label assignment strategy is designed.This strategy integrates kernel Fisher discriminant analysis and Bayesian inference,assigning different label types to online samples based on their confidence levels.Finally,upon integrating the label assignment strategy with the proposed supervised projection method,the assigned labels enhance the separability of online projections and enable the visualization of unknown data to some extent.The proposed method is validated on the Tennessee Eastman process and a real continuous catalytic reforming process,demonstrating superior visual fault monitoring and diagnosis performance to that of the state-of-the-art methods,especially in real industrial applications. 展开更多
关键词 visual process monitoring supervised uniform manifold approximation and projection kernel Fisher discriminant analysis Bayesian inference
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Sound-Environment Monitoring Method Based on Computational Auditory Scene Analysis
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作者 Mitsuru Kawamoto 《Journal of Signal and Information Processing》 2017年第2期65-77,共13页
Monitoring techniques are a key technology for examining the conditions in various scenarios, e.g., structural conditions, weather conditions, and disasters. In order to understand such scenarios, the appropriate extr... Monitoring techniques are a key technology for examining the conditions in various scenarios, e.g., structural conditions, weather conditions, and disasters. In order to understand such scenarios, the appropriate extraction of their features from observation data is important. This paper proposes a monitoring method that allows sound environments to be expressed as a sound pattern. To this end, the concept of synesthesia is exploited. That is, the keys, tones, and pitches of the monitored sound are expressed using the three elements of color, that is, the hue, saturation, and brightness, respectively. In this paper, it is assumed that the hue, saturation, and brightness can be detected from the chromagram, sonogram, and sound spectrogram, respectively, based on a previous synesthesia experiment. Then, the sound pattern can be drawn using color, yielding a “painted sound map.” The usefulness of the proposed monitoring technique is verified using environmental sound data observed at a galleria. 展开更多
关键词 Sound-Environment visualIZATION Environmental SOUNDS monitoring Painted SOUND PATTERNS SYNESTHESIA
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海洋钻井参数监测控制与钻井风险防控技术 被引量:1
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作者 杨进 韦龙贵 +5 位作者 顾纯巍 宋宇 李晓刚 王哲 史旻 顾岳 《中国海上油气》 北大核心 2025年第1期147-155,共9页
针对中国海上石油钻井监测控制与风险防控技术实现智能化面临的诸如海上钻井参数实时监测评价能力差等难题,根据中国海域特点改进相关理论计算模型,研发具有自主知识产权的应用软件和应用工具对海洋钻井参数进行精确预测、对海洋钻井风... 针对中国海上石油钻井监测控制与风险防控技术实现智能化面临的诸如海上钻井参数实时监测评价能力差等难题,根据中国海域特点改进相关理论计算模型,研发具有自主知识产权的应用软件和应用工具对海洋钻井参数进行精确预测、对海洋钻井风险进行评估、对海上员工进行操作监控培训等;同时引入Optidrill数据采集分析系统等国外成熟商业钻井监控软件去解决海洋钻井参数实时监控难的问题。上述技术体系应用后,中国渤海海域部分区块单井复杂工况时间降低30%以上,复杂事故处理时间减少20%以上,钻井周期减少20%以上,培训效率提升40%,最终形成了钻井工程设计可视化模拟评估技术、钻井实时监测与控制优化技术、复杂工况多方决策技术和钻井工程仿真模拟培训技术等四大关键技术。本项研究的海洋钻井参数监测控制与钻井风险防控技术体系取得了良好的应用效果,可为实现海上安全高效钻井作业目标提供理论和技术支撑。 展开更多
关键词 海洋钻井 智能监控 可视化模拟评估 多方决策 模拟培训
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基于BIM+GIS的工程结构智能建造监测系统研究
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作者 张俊峰 范富豪 +3 位作者 张英豪 王欢 蔡迎春 李斐然 《建筑结构》 北大核心 2025年第21期18-24,共7页
目前,工程结构大型化、复杂化的发展使得结构的施工模拟和施工监测变得更加必要,而施工监测趋于规模化和精细化,产生的实时监测信息数据量巨大,给监测信息的分析和管理带来不便。BIM与GIS技术的结合可在建筑的设施设备信息管理、应急响... 目前,工程结构大型化、复杂化的发展使得结构的施工模拟和施工监测变得更加必要,而施工监测趋于规模化和精细化,产生的实时监测信息数据量巨大,给监测信息的分析和管理带来不便。BIM与GIS技术的结合可在建筑的设施设备信息管理、应急响应等方面提供完善的信息化支撑和管理手段。以施工模拟和现场监测为研究对象,开发了工程结构智能建造及监测系统,利用跨平台的三维GIS渲染引擎Cesium在Web端加载BIM模型,成功实现了三维交互、属性查询、量测和施工场景展示等功能,实现了建造管理数据的存储与交换和监测点在整体模型上的定位与可视化数据整合。在此基础上,开发了监测点布置、传感器管理、监测数据管理、结构预警等功能,实现了工程结构监测信息的全局、动态、可视化展示和高效的信息化管理。 展开更多
关键词 智能建造 施工监测 BIM GIS 可视化 监测系统 预警
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伏立康唑血药浓度监测在患者肝毒性和视觉症状不良反应预测诊断中的应用价值
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作者 陈丽娟 朱蕻潮 +3 位作者 吴晓丽 杨康群 秦海艳 王昕雯 《中国新药与临床杂志》 北大核心 2025年第2期139-144,共6页
目的探讨伏立康唑血药浓度监测在患者肝毒性和视觉症状不良反应预测诊断中的应用价值。方法回顾性研究2020年1月至2022年12月在本院接受伏立康唑治疗成年患者的治疗药物监测资料,利用受试者操作特征(ROC)曲线分析患者肝毒性和视觉症状... 目的探讨伏立康唑血药浓度监测在患者肝毒性和视觉症状不良反应预测诊断中的应用价值。方法回顾性研究2020年1月至2022年12月在本院接受伏立康唑治疗成年患者的治疗药物监测资料,利用受试者操作特征(ROC)曲线分析患者肝毒性和视觉症状与血药谷浓度(c_(min))之间的关系,观察并统计患者剂量调整后的不良反应改善情况。结果221例伏立康唑治疗患者中发生肝毒性13例,视觉症状33例,视觉症状不良反应的发生率显著高于肝毒性(14.9%vs.5.9%,P<0.01)。发生肝毒性的中位时间点为治疗第12日,发生视觉症状为第4日(P<0.01)。ROC曲线显示初始c_(min)与视觉症状显著相关(AUC=0.623,P<0.05),但与肝毒性无关(AUC=0.597,P>0.05);肝毒性和视觉症状均与不良反应发生时的c_(min)显著相关(均P<0.01),发生肝毒性的c_(min)临界值为5.160μg·mL^(-1),视觉症状为4.545μg·mL^(-1)。发生肝毒性和视觉症状而停用伏立康唑的患者比例分别为62%(8/13)和27%(9/33)(P<0.05);在继续使用伏立康唑的患者中,分别有38%(5/13)发生肝毒性患者和21%(7/33)发生视觉症状患者减少了给药剂量(P>0.05);通过调整剂量,38%(5/13)发生肝毒性患者和73%(24/33)发生视觉症状患者完成了伏立康唑治疗(P<0.05)。结论伏立康唑治疗中,患者视觉症状发生早于肝毒性且发生比例较高。伏立康唑血药浓度监测能够对不良反应进行预测诊断,指导临床及时进行剂量调整以保证患者用药安全。 展开更多
关键词 伏立康唑 治疗药物监测 肝毒性 视觉症状 抗真菌药
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基于声像监测边坡危岩崩塌启动机制与前兆特征室内试验
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作者 张信贵 蒋振炎 +6 位作者 蓝日彦 范立峰 严利娥 韩伟 唐正辉 张懿丹 田佳男 《地质科技通报》 北大核心 2025年第3期212-227,共16页
为有效预测和防范危岩崩塌,保障公路交通运输的安全,通过声发射和视频联合监测的方法,开展了风化因素、坡度因素、外部荷载因素和振动因素4个不同工况下危岩崩塌启动的室内模型试验,结合声发射信号在时域、频域、时频域的演化特征,以及... 为有效预测和防范危岩崩塌,保障公路交通运输的安全,通过声发射和视频联合监测的方法,开展了风化因素、坡度因素、外部荷载因素和振动因素4个不同工况下危岩崩塌启动的室内模型试验,结合声发射信号在时域、频域、时频域的演化特征,以及视频图像的时空变化特征,对多种不同影响因素下危岩崩塌孕育过程的启动机制与前兆特征进行了研究与分析。研究结果表明,在启动机制方面,危岩崩塌的主控因素包括危岩重心偏移、危岩与坡面间的黏结力下降和边坡危岩整体下滑力增大且超过抗滑力极限。其中危岩与坡面(或母岩)间的黏结力下降为滑移式与倾倒式崩塌的共有启动机制,危岩重心偏移主要为倾倒式崩塌的启动机制,危岩整体下滑力增大且超过抗滑力极限主要为滑移式崩塌的启动机制。可将这3类主控因素作为实际边坡危岩崩塌启动机制的判断标准之一。在前兆特征方面,危岩崩塌前,宏观上出现局部掉块与小型岩崩等前兆现象,声发射信号多出现于中低频带中,且主频带较宽,同时中高幅值、高能量信号占比较多。因此当综合前兆特征中多个单一前兆特征同时出现时,可作为实际边坡危岩发生崩塌的判断标准之一。本研究可为公路边坡危岩崩塌的监测预警提供科学依据和技术支持,有助于提高危岩崩塌灾害防治的有效性和可靠性。 展开更多
关键词 声像监测 危岩崩塌 启动机制 前兆特征 室内试验 边坡
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掘进机截割部实验台数字孪生监测系统研究
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作者 马天兵 杨启程 +2 位作者 李长鹏 史瑞 彭猛 《煤炭工程》 北大核心 2025年第4期131-137,共7页
掘进机截割部实验台在模拟截割过程中,粉尘浓度高,会引起掘进机截割状态实时监测的可视化效果差、安全性低等问题,为此,提出了一种基于数字孪生的掘进机截割实验状态实时监测方法。首先,绘制了数字孪生掘进机截割部实验系统五维模型架构... 掘进机截割部实验台在模拟截割过程中,粉尘浓度高,会引起掘进机截割状态实时监测的可视化效果差、安全性低等问题,为此,提出了一种基于数字孪生的掘进机截割实验状态实时监测方法。首先,绘制了数字孪生掘进机截割部实验系统五维模型架构;其次,基于UE 5软件开发了掘进机截割部实验系统数字孪生体,主要包括截割部数字场景的搭建、孪生数据传输与管理、虚实数据映射等;最后通过掘进机截割实验进行数字孪生集成功能验证。实验结果表明,运用数字孪生技术实现场景漫游可有效提升掘进机截割状态可视化监测效果,为截割实验安全性提供保障。 展开更多
关键词 数字孪生 掘进机截割部 数据交互 状态监测 数据可视化
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基于微震时空流图的冲击地压危险区域预测方法
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作者 曹安业 刘亚鹏 +2 位作者 汪子琨 杨旭 牛强 《工矿自动化》 北大核心 2025年第7期75-82,共8页
微震事件的时空分布特征与煤矿冲击地压强度之间存在密切关联,基于机器学习的微震数据预测方法及可视化呈现是冲击地压监测预警的重要技术手段,但目前存在无法有效预测危险区域移动轨迹、微震数据时空协同可视化困难、数据堆叠难以显示... 微震事件的时空分布特征与煤矿冲击地压强度之间存在密切关联,基于机器学习的微震数据预测方法及可视化呈现是冲击地压监测预警的重要技术手段,但目前存在无法有效预测危险区域移动轨迹、微震数据时空协同可视化困难、数据堆叠难以显示等问题。针对该问题,提出了一种基于微震时空流图的冲击地压危险区域预测方法。在该方法的数据预处理模块,采用二维核密度估计法将离散的微震数据进行连续表示,并构建核密度热力图反映微震数据空间聚集程度;在时空流图构建模块,改进引力模型以提取微震数据时空特征,采用箭头对时空流移动方向进行可视化效果呈现;在危险区域预测模块,利用K-means聚类算法优化可视化结果。采用内蒙古某矿2215工作面和陕西某矿4106工作面微震数据,分别针对断层和采空区的冲击地压危险区域进行预测实验,结果表明该方法能够有效、准确预测冲击地压危险区域的转移方向,采用K-means聚类算法后微震时空流图中箭头数量优化率分别为77.27%,87.5%,可视化效果更加简洁、直观。 展开更多
关键词 煤矿冲击地压 微震监测 危险区域预测 时空协同可视化 时空流图
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