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Discussion about Some Problems of Environment On-line Monitoring System [PDF]
, 2009 相对于传统的环境监测方式,环境在线自动监控作为一种先进技术,在环境应急反应、提高办事效率及管理水平等方面具有突出优势,但在实际应用过程中面临着在企业的推广有难度、监管方式尚需完善以及监测方法不统一等方面的问题。本文针对这些问题从管理模式、运营机制、管理方式以及监测方法等四个方面提出了相应的解决方案,以求通过这些措施的应用,确保环境自动监测系统在未来的环境管理中发挥更加重要的作用。Compared with traditional methods of environmental monitoring ...
张黎黎, 牛晓琳, 颜海波
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Integrative Conservation, Volume 4, Issue 3, Page 302-309, September 2025.We discussed the key assumptions of Distance sampling that were considered hard to meet in mountainous terrains and potential solutions for them. Our survey yielded comparable estimates from distance sampling and double‐observer survey, although the confidence interval from distance sampling was broader.
Lingyun Xiao +4 more
wiley +1 more source
Gaoya dianqi, 2018 随着输电线路在线监测设备自身功耗的增加,在线监测供电可靠性已成为制约设备稳定运行的关键因素。针对输电线路在线监测设备的供电电源问题,文中首先对传统太阳能电池板功率和蓄电池容量估算方法进行了分析;随后分别对装置功耗剧增、太阳能电池板积灰、蓄电池低温性能、杆塔安装限制等电源选配影响因素进行了探讨,分析了在线监测电源配置的改进方法,最后给出了两种典型在线监测设备供电电源的设计实例,可为输电线路在线监测装置电源模块的设计提供重要参考。
朱永灿 +4 more
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Is parvovirus B19 infection upsurge in 2023–2024 associated with adverse pregnancy outcome?
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 3, Page 307-313, September 2025.ABSTRACT Objective A surge in parvovirus B19 infections has been reported in 2023–2024 across Europe and the USA, raising concerns about the associated perinatal risks. The aim of this study was to compare perinatal outcomes following maternal parvovirus B19 infection during the 2023–2024 period with those from a pre‐2023 cohort.
S. Prasad +22 more
wiley +1 more source
Gaoya dianqi, 2005 气相色谱分析在检测变压器各类故障方面发挥了很重要的作用,但离线检测存在很多缺点,针对离线检测方法操作的繁琐性,介绍了一种基于气敏传感器的在线监测系统,论述了用监测两种气体来实现对变压器油中溶解气体在线监测的原因和方法,对气体传感器和气体在线监测的硬件设计和通信软件设计等进行了具体的分析和探讨。
张挺, 王章启, 魏天魁
doaj
Design and Implementation of Condition Monitoring System for Power Transmission Equipments [PDF]
, 2014 输电线路是电力系统的重要组成部分。随着电力建设的快速发展，电网规模的不断扩大，电网的建设和设备维护工作变得越来越频繁。作为电力输送纽带的输电线路具有距离长、分散性大、难以巡视和维护等特点，需要人员定期巡检、定期维修，占用人员数量多，整体工作强度高，受环境和人为因素影响大，维护任务繁重。为提高输电线路的管理水平，增强电力系统运行的可靠性，迫切需要建立一套性能可靠，功能丰富的电力输电设备状态监测系统，这是输电线路检修和可靠运行的发展方向。 本文设计实现的输电设备状态监测系统采用Java技术路线 ...
马智
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Integrative Conservation, Volume 4, Issue 2, Page 143-153, June 2025.This study provided information on the abundance, population demography and activity pattern of an endangered species of Gekko badenii at the type locality of Ba Den Mountain, southern Vietnam. Local and international use and trade in Gekko badenii for food consumption and as pet were investigated and conservation recommendations highlighted.
Hai Ngoc Ngo +8 more
wiley +1 more source
Gaoya dianqi, 2009 讨论了用基于小波的图像边缘检测方法在线监测输电线路覆冰厚度的原理,提出了一种新的输电线路导线与绝缘子覆冰厚度的在线监测方法,即通过对安装在高压铁塔上的摄像机和图像采集卡获得的导线与绝缘子覆冰图像进行实时处理,提取其边界轮廓来测量导线与绝缘子上的覆冰厚度。主要对测量系统中的图像处理过程步骤作了说明,重点论述了通过提取边界轮廓来测量覆冰厚度的算法的实现,并在实验室的人工气候室中进行了试验验证。试验结果表明,该输电线路覆冰厚度在线监测方法测量精度高,监测可靠,可应用于高压输电线路覆冰厚度的在线监测。
王小朋, 胡建林, 孙才新, 杜林
doaj
The study of fiber optical sensors and their applicationgs in measurements of pH,dissolved oxygen & identification of herbal medicines fingerprinting [PDF]
, 2003 本论文由四部分组成：1.综述：光纤技术及溶胶－凝胶光纤技术2.海洋环境监测的光纤pH传感器；3.基于荧光猝灭原理的光纤化学传感器在线监测水中溶解氧；4.光纤近红外光谱在线检测中药指纹图谱。 论文的第一部分综述了光纤技术的起源、发展及其应用于化学传感器的优点；光纤化学传感器的原理特点；阐述所采用溶胶-凝胶法制备传感膜的工艺过程，包括溶胶-凝胶法的基本原理，基本工艺流程，溶胶-凝胶过程中前驱物、加水量、催化剂、pH值、控制干燥的化学添加剂和温度等参数对传感膜性能的影响 ...
荆淼
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An online grinding process monitoring method of grinding wheel based on force signals [PDF]
Grinding process monitoring is key to assessing the intelligence of grinding processing and ensuring manufacturing quality of the intended product. The grinding force in the grinding process is an important characteristic, and the grinding force signal ...
Gu LIU +4 more
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