Results 31 to 40 of about 16,268 (167)
The new electrochemical DNA sensor for detection of Mycobacterium tuberculosis and its drug resistance gene [PDF]
, 2016 耐药结核分枝杆菌，尤其是耐多药结核分枝杆菌的出现给结核病的检测和治疗带来了巨大的挑战，对人类健康产生了极大威胁。目前临床上常用的结核病的检测方法分别存在操作繁琐、仪器昂贵、耗时较长及易污染等不足。电化学DNA传感器是近几年发展起来的一种新型生物传感器，因其简单、灵敏、特异性强、易微型化等特点受到研究者的青睐，已被应用于多个领域的研究。然而电化学DNA传感器易受其他因素的干扰造成结果不稳定。实验前期构建的BSA单分子层控制组装界面为基础的电化学DNA传感器，有效地提高了体系的稳定性。本文在前期研究基础上 ...
李茜茜
core
Implications of Tobacco Use on Pathogen‐Driven Diseases: A Public Health and Policy Perspective
World Medical &Health Policy, Volume 17, Issue 3, Page 468-474, September 2025.ABSTRACT The tobacco epidemic remains one of the most significant global public health challenges, responsible for over 8 million deaths annually, with a substantial portion occurring among non‐smokers exposed to second‐hand smoke. While cigarette smoking remains the most prevalent form of tobacco use worldwide, the rise of electronic nicotine delivery
Nadine Kabbani, James L. Olds
wiley +1 more source
Gaoya dianqi, 2004 在线监测变压器油中溶解气体可有效地分析变压器绝缘状况,在线监测用气体传感器是实施该技术的关键。针对半导体气体传感器的交叉敏感特性,提出了将气体传感器阵列与人工神经网络技术相结合,利用6个半导体气体传感器组成传感器阵列,采用BP神经网络进行模式识别。大量的试验证明,所提出的智能传感器可有效地提高H2,CO,CH4,C2H4,C2H2,C2H66种气体的分辨率和检测灵敏度。
佟继春, 陈伟根, 陈荣柱
doaj
, 2015 采用分子印迹固相萃取,实现对海水中莠去津的高效分离富集,消除海水基体效应,以低检出限分子印迹聚合物膜离子选择性电极为传感器敏感元件,实现对莠去津的高灵敏电位检测,结合在线过滤等流动分析自动化处理 技术提高传感器体系分析效率,开发出了一类能够在线快速检测海水中莠去津浓度的新型电位型传感器系统。所开发的检测系统对莠去津检测的线性范围在5×10-10 ~4×10-9 mol L-1 ,检出限可达9×10-11 mol L-1 ...
梁荣宁 高奇 尹坦姬 秦伟 +1 more
core
Rare Metals, Volume 44, Issue 9, Page 6417-6425, September 2025.Graphic abstract Abstract Real‐time detection of acetic acid vapor is of concern for ensuring environmental and personal safety. However, acetic acid gas sensors, particularly those based on Bi2O3, often fail to meet practical performance requirements owing to their slow response characteristics and high operating temperature.
Fan Yang +6 more
wiley +1 more source
Gaoya dianqi, 2016 特高频局部放电检测法在GIS设备现场状态检测中得到了广泛应用,但传感器性能良莠不齐制约了现场应用效果。为研究特高频传感器对局部放电引发的电磁波信号的响应特征,基于吉赫兹横电磁波室开展了传感器扫频试验研究,在传感器有效检测频段内将一恒定电场强度扫频信号注入横电波室,检测传感器电压信号输出强度,用输出与输入信号强度比值的方式来表征传感器的响应特征,并与传统的脉冲分解法和驻波比法进行了比较分析,证明了该方法得到的结果是准确的。文中还比较了不同输入强度信号情况下传感器响应特征曲线,分析表明 ...
杨圆 +4 more
doaj
Study on A Novel Frequency Tunable Piezoelectric Vibration Energy Harvesting Device [PDF]
, 2015 随着传感器技术、嵌入式计算机技术、无线通信技术的快速发展，无线传感器网络（WSN）得到了广泛应用。传统电源已无法满足无线传感器网络应用的要求，因此俘获环境能量并将其转换为电能为无线传感器供电成为传统电源的一种替代方案。环境中的振动能凭借能量来源广泛、收集方便的特点而成为了很具吸引力的环境能量源。振动能量的回收方式主要有三种，即电磁式、静电式和压电式。其中压电俘能方式可以直接将施加的应变能转化成电能，适用于各种尺度，结构相对简单，无需额外的电源，而且易于集成 ...
李营泰
core
Environmental racism and air pollution: Pre and post the COVID‐19 economic shutdown
Review of Policy Research, Volume 42, Issue 4, Page 949-981, July 2025.Abstract Decades of research demonstrates that minoritized groups are disproportionately affected by swathes of harmful pollutants, including air pollution, even controlling for low income. Would significantly reducing individual car traffic help reduce the EJ gap?
Heather E. Campbell +3 more
wiley +1 more source
Gaoya dianqi, 2017 内置式传感器的检测性能取决于GIS结构、传感器的布置方式等条件,在运行中对内置式传感器进行拆卸校验困难的情况下,对已安装的内置式传感器开展出厂前的校验工作显得十分重要。笔者以一段待出厂的GIS间隔为试验平台,建立了内置式传感器的检测系统并分别采用了在GIS内部放置局部放电模型及注入人工电压脉冲两种方法对传感器性能进行了校验,通过对数据的分析可以得出:两种测试方法中内置式传感器的响应量均随着与激励源距离的增加而衰减,信号经过L分支后衰减情况比沿同轴直筒传播更为严重;对于同一个传感器 ...
陈贤熙
doaj
Combating infections under siege: Healthcare challenges amidst the military assault in Gaza
World Medical &Health Policy, Volume 17, Issue 1, Page 188-213, March 2025.Abstract The ongoing Israeli military assault on Gaza has caused a devastating collapse of healthcare infrastructure, resulting in an unprecedented surge in infectious diseases. The destruction of sanitation systems, restrictions on medical supplies, and displacement of civilians have created an environment conducive to the rapid spread of waterborne ...
Bilal Irfan +24 more
wiley +1 more source