Results 31 to 40 of about 467,554 (155)
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Reliable monitoring of ultraviolet (UV) radiation is critical for protecting human health, yet existing sensors often rely on costly or rigid components that hinder portability. Here we report a wearable, low‐cost colorimetric sensor for quantitative UV dosimetry, enabled by radical‐triggered aggregation of gold nanoparticles (AuNPs).
Yahuang Li +6 more
wiley +1 more source
Guangtongxin yanjiu, 2011 光子晶体光纤传感器的稳定性在实际工程应用中具有重要影响。文章分析了光子晶体光纤压力传感器的基本原理,介绍了光子晶体光纤压力传感器的系统组成,从理论上分析了传感器系统相对于光源波长变化、输出信号光强起伏及环境温度波动的稳定性。光子晶体光纤压力传感器激光光源的输出功率及波长的波动、敏感元件长度的改变和环境温度的变化等都对整个传感器系统的稳定性有影响。
余先伦, 陈猛, 郑旭武
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Wildlife Letters, Volume 4, Issue 2, Page 66-72, June 2026.Tracking with GPS and accelerometers shows that great evening bats in subtropical China use two overwintering strategies: some remain in continuous hibernation, while others switch between torpor and activity as temperatures change. This behavioral flexibility, shaped by climate, underscores the importance of protecting diverse roosting habitats for ...
Zhiqiang Wang +7 more
wiley +1 more source
Gaoya dianqi, 2018 局部放电特高频在线监测是全封闭气体绝缘开关设备（GIS）状态运维的重要手段,在电力系统得到了广泛应用。现场局放特高频在线监测系统实际应用效果,在很大程度上取决于监测系统及其传感器硬件的灵敏度,由于现场环境复杂,传感器及检测系统长期运行性能会下降,因此,有必要对检测系统及传感器进行现场校验。文中从特高频传感器特性、传感器安装方式和脉冲信号在GIS腔体结构内的传播衰减特性3个方面分析了影响局放特高频监测系统现场校核的因素,在CIGRE推出的局放特高频传感器灵敏度现场校验方法的基础上 ...
唐志国 +3 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The precise quantification of cytokines is crucial for monitoring disease onset and progression. Herein, we developed a synergistic signal amplification approach by utilizing nanoreactor‐encapsulated CeO2 nanozymes, which were in situ electrodeposited within the mesoporous silica nanochannel film (SNF) grown on indium tin oxide (ITO ...
Yu Cui +4 more
wiley +1 more source
, 2014 本实用新型公开一种热流传感器，包括：不锈钢外壳、氮化硼陶瓷片、康铜片和紫铜基体，其中，圆形的康铜片的边缘焊接在紫铜基体上，康铜片的上面覆盖所述氮化硼陶瓷片；所述不锈钢外壳位于所述氮化硼陶瓷片、康铜片和紫铜基体的外部；从康铜片的中心与紫铜基体上分别引出两根铜质导线，作为所述热流传感器的输出导线。本实用新型的热流计的耐热温度可达3000℃以上，且量程非常大，最高可达4MW/m2，响应时间短，响应时间在5s以内，测量精度高，误差在5%以内。该热流计能够被广泛的应用于冶金、航空航天等高温、恶劣的环境中进行稳定 ...
程迪, 李龙, 王景泉, 范学军
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Gaoya dianqi, 2014 笔者试探性对变压器局部放电测试用UHF传感器的检测校准方法开展研究。研制变压器局放UHF传感器的安装工装、可调试人造纳秒脉冲源、变压器局放故障模拟装置、缺陷模拟电极等,在实验室内对UHF传感器的灵敏度进行标定和测试范围进行校准测试。该检测校验方法也可对现场变压器局放UHF传感器安装后的性能开展测试,在实验室内用变压器模拟工装验证了现场UHF传感器测试方法。
李辉 +4 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Additive manufacturing, commonly referred to as three‐dimensional (3D) printing, provides the geometric freedom and multi‐material integration needed to build soft medical robots for minimally invasive interventions, prosthetics, and rehabilitation.
Yao Wang +5 more
wiley +1 more source
, 2011 汽车尾气净化用电势型氧传感器的电极表面通常涂覆有一层保护层,以"过滤"废气中的杂质。考察了保护层制作工艺和保护层物理参数对电势型氧传感器稳态输出电压、使用寿命和响应时间的影响,结果表明:1)当制备保护层所使用的材料(主要是高温粘结剂)和传感器电极或电解质发生化学反应时,测量得到的稳态输出电压也会和真实值相差甚远。选定质量分数为20%硅胶作为高温粘结剂可制备得到性能优良的传感器保护层;2)在保护层制备过程中加入适当比例的YSZ粉末材料,可使电极保护层的使用寿命提高;3 ...
杨素萍 +5 more
core
Gaoya dianqi, 2013 基于碳纳米管（CNTs）气体传感器的SF6气体分解产物检测技术,是诊断GIS绝缘缺陷引起的局部放电的有效手段。开展传感器对SF6分解气体响应特性的研究,对于将该技术应用于GIS局部放电的监测具有重要意义。笔者测量了CNTs气体传感器对4种标准气体（HF、SO2F2、SOF2/S2OF10、SO2）的响应,并建立了由GIS模拟罐体、基于脉冲电流法的局放仪和CNTs气体传感器构成的实验系统,测量了CNTs气体传感器对局部放电形成的SF6分解气体的响应 ...
马奎 +6 more
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