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  1. Passive Infrared Sensor - an overview | ScienceDirect Topics

    Jul 8, 2009 · 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 …

  2. Sensitivity enhancement of Passive Infrared (PIR) sensor for motion ...

    Oct 1, 2021 · PIR sensors are passive devices accustomed to detect heat emitted by an object in motion inside their detection arc. These sensors have a quick response, low cost, low power consumption, …

  3. Review of signal processing applications of Pyroelectric Infrared (PIR ...

    Dec 1, 2021 · The article reviews signal processing applications of Pyroelectric Infrared (PIR) sensors with the main focus on the respiration and pulse rate detect…

  4. Design of Smart Home Security System using Object Recognition and …

    Jan 1, 2018 · This research aims to design and implement a home security system with the capability for human detection. The traditional home security system, i.e. …

  5. The m6A hypermethylation-induced PIR overexpression regulates …

    Jul 28, 2025 · Here, we identified Pirin (PIR) as a key oncogenic factor in UM through comprehensive multi-omics analyses, revealing that PIR is significantly upregulated and correlates with poor …

  6. CD40 induces PIR-A+ macrophages to promote chronic allograft …

    Mar 26, 2025 · Results CD40 and PIR-A were highly expressed and colocalized in macrophage-infiltrating allograft in the mouse model. CD40-CD40L blockade inhibited PIR-A expression and …

  7. Research paper

    Jun 1, 2025 · 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 …

  8. Role and mechanism of piR-0228 targeting RIPK1 to ... - ScienceDirect

    Nov 1, 2025 · 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 …

  9. Novel occupancy detection method based on convolutional neural …

    Oct 1, 2024 · PIR sensors have been used extensively as motion detectors, as illustrated in Fig. 2 A. Six PIR sensors were evenly installed on the ceiling of the office. The installation points and floor plan of …

  10. 1,2-Dichloroethane induces testicular pyroptosis by activating piR …

    1,2-Dichloroethane (1,2-DCE) is a prevalent environmental contaminant, and our study revealed its induction of testicular toxicity in mice upon subacu…