Gaoya dianqi, 2010 SF6气体泄漏对SF6电气设备、人员以及环境的安全造成了巨大危害,但由于其无色无味,泄漏点不容易定位。笔者介绍了一种用于检测SF6电气设备气体泄漏的激光成像技术,并介绍了该方法实现的技术原理,分析了与传统方法相比的优越性。通过对几个检测实例的分析表明,该方法可以快速、准确、安全地对SF6泄漏点进行定位。
高树国 +4 more
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Study on Exergy Analysis of Mine Air-conditioner Using Ice Slurry for Latent Heat Transportation [PDF]
, 2017 针对冰浆潜热输送矿井空调系统进行了设计，提出存在峰谷电价下的井上、井下设计方案。以淮南某矿井为例，根据冰浆潜热输送深井空调功能特性，将系统分为一次侧循环系统和二次侧循环系统，采用系统火用平衡分析法，代替传统的能量平衡分析法 ...
刘腾庆, 苏林, 董凯军, 陈照杰
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Research and Applications of Pressure Test for Vapor Compression Refrigeration System [PDF]
, 2011 The observation of leak detection on site for vapor compression refrigeration system showed that foamy leaks might be found by foamy test,even when maintaining pressure test met the requirement of national standard GB50274-98 code for construction and ...
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Analysis of high risk factors of pathological escalation after LEEP in CIN2 diagnosed by colposcopic biopsy [PDF]
, 2023 Objective To investigate the risk factors associated with pathological escalation to cervical intraepithelial neoplasia grade 2 （CIN2） or above （CIN2+） in patients with CIN2 confirmed by colposcopic biopsy， aiming to provide evidence for the stratified ...
Ma Xiaoli, Meng Ge, Duan Hua
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极端环境下SF6气体红外热成像检漏技术在GIS带电检测中的效果加强方法研究
Gaoya dianqi, 2021 SF6红外成像检漏技术具有非接触式和高灵敏度的优点,然而对于某些观测环境复杂、背景干扰较多的场景,直接使用红外热成像检漏仪进行SF6气体检漏往往难以取得理想效果。针对上述情况,文中基于工程实际提出并研究了两种便捷可行的检漏效果加强方法,设计并完成相关实验以对其效果提升进行定量评估。一是利用负电晕检测技术与红外成像检漏仪联合检测,通过两种方法在不同适用场景下的互补提升SF6气体检漏的适用范围;二是针对特定场景,采用自加热金属板等方法改善拍摄背景和周围温度,有效提升红外成像效果 ...
许侃 +5 more
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Three-dimensional model reconstruction of pipeline with inner wall corrosion based on ultrasonic phased array technology [PDF]
, 2023 The inner wall corrosion of pipelines is concealed and hard to monitor in time. In order to visualize the shape of the internally corroded pipeline, as well as the defect volume and its spatial distribution, a three-dimensional (3D) model reconstruction ...
Miaomiao ZHANG +4 more
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Gaoya dianqi, 2020 目前的气体绝缘电力设备中SF6气体泄漏检测方法存在检测精度低、无法对泄漏点准确定位等不足,为此提出基于小波分析的绝缘电力设备中SF6气体泄漏检测方法。通过红外气体检漏器进行采样,通过直方图均衡化实现图像预处理,通过小波变换对信号、图像进行分解,再通过小波变换去除背景,留下目标和噪声,再通过设置小波阈值去除噪声,至此完成基于小波分析的绝缘电力设备中SF6气体泄漏检测方法的设计与实现。从检测精度和泄漏点定位准确性两方面,对提出的基于小波分析的绝缘电力设备中SF6气体泄漏检测方法和传统的检测方法进行对比实验 ...
颜涛
doaj
Discussion and Research on Some Issues in Helium Pressure Test Technology for Dummy Sealed Source [PDF]
In order to solve some problems existing in the helium pressure leak detection technology of the pseudo-sealed source and clarify the calculation formula and test method, the paper deduces the helium pressure leak detection formula of the pseudo-sealed ...
Chenzhong SHI +3 more
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Research progress of novel food packaging materials [PDF]
, 2020 With the further development of food processing industry，food quality and safety have been paid more and more attention by the public.In order to protect food quality and extend the shelf life，it is of great significance to develop new packaging ...
CHEN Xiao-jun +4 more
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Design and Implementation of Physical Examination Management System for a Traditional Chinese Medicine Hospital [PDF]
, 2015 随着人们对自身健康的日益重视，越来越多的人意识到了自身体检的重要性。定期的对自身的身体状态进行一个全面的体检已经成为保障人们健康的一个非常重要的环节。因此，医院也将健康体检业务作为其重要的一个环节来抓，体检管理系统也将成为医院信息化建设过程中的重要组成部分。 本文设计的体检管理系统基于.NET构架，在软件工程理论思想的指导下完成了系统的开发。系统的集成开发环境选择VisualStudio2010为开发平台，使用当前最为流行的SQLServer2010为数据库。采用ASP ...
郭红梅
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