Monitoring Scheme for Safety Hazard Status of Urban Rail Transit Operation Equipment and Facilities Based on Blockchain Technology [PDF]
, 2023 Urban rail transit plays a very important role in cities’ social and economic development. To ensure the safe and stable operation of urban rail transit operation equipment and facilities, it is necessary to monitor a large number of safety hazard ...
Li, Meng, Lin, Qi
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Mediating Role of Family Function between Disability Severity and Family Resilience in Home-living Older Adults with Disability in Minority Areas of Xinjiang [PDF]
, 2022 BackgroundAs a multi-ethnic and economically underdeveloped region, Xinjiang faces severe challenges coming with an aging population. To promote active aging under the circumstances of unsatisfied comprehensive strength and imperfect home care system, it
ZHANG Mengmeng, WANG Yuhuan, TANG Xueting, ZHAO Shuhua, ZHOU Jia
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Dianci bileiqi, 2023 为提高对金属氧化物避雷器(MOA)运行状态的准确把控能力，提出了基于多源信息融合的MOA运行状态评价方法。该方法通过评估运行巡视、带电测试与停电试验等数据对MOA运行状态的影响，建立了多源信息评价标准；应用长短期记忆循环神经网络(LSTM-RNN)、CART决策树与D-S证据理论构建了MOA运行状态评价模型；最后运用该模型对不同变电站的3个间隔9支MOA进行跟踪测试。结果显示，该模型的评价结果与停电试验结果相一致，证明了该模型对MOA运行状态评价的有效性 ...
朱育钊, 方文田, 方逸越, 李涛
doaj
Modeling of Efficiency Distribution Characteristics of Photovoltaic Arrays and Its Application in Operating State Evaluation [PDF]
ObjectivesAs the installed capacity of photovoltaic (PV) power generation continues to expand, accurately evaluating the operating state of PV arrays has become increasingly important in the intelligent operation of PV power stations.
LI Guanghui +8 more
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Evaluation method for gas pre-extraction status in coal seam boreholes based on semi-supervised learning [PDF]
Current evaluation methods for single-borehole gas extraction status typically rely on gas concentration, while overlooking the diversity of coal seam gas occurrence.
JIN Yongfei +3 more
core +1 more source
Study on the Optimization of the Seawater Environmental Monitoring Network in the Bay Based on Kriging and GIS: A Case Study from Quanzhou Bay, Fujian Province [PDF]
, 2015 海湾生态系统是一种重要海洋生态系统类型，通常具有独特的生态环境和高价值的各类资源。同时，其优越的自然条件、区位条件以及多样、丰富的资源，促使海湾周边城市社会经济发展快速，人口密度增大。但是，海湾作为半封闭海域，海水交换能力与自净能力有限，易受径流沉降与陆源污染物输入的影响，其生态环境较为脆弱。因此，亟需基于高效、准确的海洋环境监测评价以实施环境监督管理的措施。目前，我国海洋环境监测工作普遍存在监测目的不明确、环境信息不完整以及监测计划针对性弱等问题，导致现已开展的海洋环境监测与评价无法衔接 ...
倪敏捷
core
Ecological security assessment of Qiandao Lake based on catastrophe theory(基于突变级数法的千岛湖流域生态安全评价)
Zhejiang Daxue xuebao. Lixue ban, 2014 针对千岛湖流域生态系统退化、生态安全受到威胁的现状，对千岛湖流域生态安全进行了综合评价，以识别影响流域生态安全的主要因素.研究引入了基于突变理论的多准则评价方法——突变级数法，基于压力-状态-响应(PSR)模型构建了由15个相关指标组成的评价指标体系，对千岛湖流域2008~2011年间的生态安全进行了全面评估.评估结果表明，2008~2011年间，千岛湖流域生态安全2010年达到较安全级别，其他年份均处于基本安全的级别.相对而言，压力系统的安全度最低，状态系统安全度最佳.研究结果表明 ...
LIYanan(李亚男) +3 more
doaj +1 more source
Traffic congestion simulation and evaluation method for large passenger station region [PDF]
, 2015 The passenger station region is an important distribution channel which connects the large passenger station with the outside traffic of the region.
Ji, Xun +3 more
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, 2012 伴随着举世瞩目的三峡工程全面竣工,三峡水库于2010年正式进入年水位落差达30 m的正常运行阶段.水库湖沼学可为环境友好型大坝建设和水库可持续管理提供科学依据.本文在三峡成库8 a以来生态系统长期监测与研究的基础上,对三峡水库水环境现状进行了归纳和总结,分析了水环境动态的时空异质性、水库纵向分区与群落组成、垂向分布及藻类水华的成因和动态,并对三峡水库藻类水华预警与生态-水文调控机制展开了论述.最后,本文尝试给出以下两方面的展望:1)大型水库湖沼学观测研究应有长期的策略;2 ...
孙志禹, 蔡庆华
core
Key clinical studies on changing clinical practice of advanced breast cancer in 2022 [PDF]
, 2023 With the improvement of comprehensive treatment of breast cancer and the continuous development of anti-tumor drugs, the survival time of breast cancer patients, especially advanced breast cancer, has been further extended. In recent years, the treatment
ZHANG Huiqiang, JIANG Zefei
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