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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 · 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 …

  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. piR-hsa-35410 promotes triple-negative breast cancer progression via ...

    6 days ago · 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 …

  5. 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. …

  6. 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 …

  7. 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 …

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

    Mar 26, 2025 · Our data suggest that Pira is a potential target to induce long-term allograft tolerance. CD40 may activate transcription factor NF-κB2 translocation into the nucleus to up-regulate PIR-A …

  9. Novel occupancy detection method based on convolutional neural …

    Oct 1, 2024 · The sensors divided the office into six separate sub-zones. The four west PIR sensors covered four seats and the personnel sitting in these positions were all university researchers, …

  10. Bifurcation analysis and control in a second-order DC–AC inverter with ...

    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 …