3.2 Passive infrared sensor (PIR sensor) A PIR sensor is an electronic sensor used in motion detectors such as automatically triggered lighting devices and protection systems that measure devices emitting infrared light in their field of view. Each body with a temperature above zero releases heat energy, which is in the form of radiation. PIR sensors detect infrared radiation that is reflected ...
For the PIR sensor, coverage area, sensitivity, angle of view, and responsitivity are the main criteria required for better sensor performance. The dominant one is the sensitivity, which is the measure of the change in output to unit change in input of the sensor.
PIR sensors offer a non-invasive method that ensures the safety and confidentiality of individuals, making them a preferred choice for privacy-conscious monitoring solutions. By emphasizing privacy preservation and cost-effectiveness, this study highlights the advantages of using a single PIR sensor for comprehensive human activeness monitoring.
For these reasons, PIR and thermopile sensors are also viable options for location estimation in an indoor environment such as home and office buildings. There are a substantial number of papers that proposed passive infrared-based location estimation.
The quasi-PIR controlled second-order inverter has two working modes, and its state switches between mode one and two once in a switching period via the bipolar sinusoidal pulse width modulation.
This study addresses these limitations by exclusively utilizing two binary PIR sensors (in-door and in-room) and booking data. Since PIR sensors and booking systems are already integrated into most smart building infrastructures, leveraging these existing resources helps reduce costs and simplifies implementation.
In addition, we identified and confirmed that RIPK1 is a downstream target of piR-0228 and is negatively regulated by it through the integration of bioinformatics analysis. Finally, we demonstrated the protective effects of piR-0228 in vivo by constructing a mouse model of AD.
Optimized Fresnel lenses are integrated into next-generation systems like passive infrared (PIR) sensors, compact thermal imaging devices, and miniaturized security monitoring systems.The model supports both circular and cylindrical symmetry, allowing for anisotropic optical designs adaptable to specific needs, such as motion detection or ...
Mechanically, piR-713551/PIWIL4 complex activated the THBS2 transcription by recruitment of histone demethyltransferase KDM4A to reduce H3K9me3 modification at the THBS2 gene promoter. Conclusively, our research showed that CB exposure could activate EMT and lead pulmonary fibrosis which was modulated by piR-713551/PIWIL4 targeting THBS2.
This study identified piR-hsa-35410 (hereafter piR-35410) with aberrant expression and aimed to further elucidate its biological functions and mechanisms in TNBC. In TNBC, the elevated expression of piR-35410 enhanced clone formation and cell migration capacities, as well as glycolytic activity.
