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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. Self-supporting flexible electrode-integrated ... - ScienceDirect

    Nov 1, 2025 · Self-supporting flexible electrode-integrated microfluidic ECL sensor for piR-651 detection in thyroid cancer extracellular vesicles

  5. Ultrasensitive and label-free detection of piR-54265 biomarker by ...

    Apr 1, 2026 · Ultrasensitive and label-free detection of piR-54265 biomarker by solution-gated graphene transistors with poly-adenine DNA assembled probe for accurate diagnosis of colorectal cancer

  6. Chemical gradients in PIR foams as probed by ATR-FTIR analysis and ...

    Jan 1, 2021 · Even if the presence of thermal gradients in PIR foams and its influence on isocyanurate content have been discussed a few times in the literature, a detailed analysis of the chemical …

  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. piR-19521 facilitates cancer stem cell-like properties by enhancing ...

    Nov 1, 2025 · Therefore, we speculated that piR-19521 may possess eRNA-like function in CRC. In this study, we found that piR-19521 increased stem-like properties of CRC cells. Moreover, we revealed …

  9. Privacy-concerned averaged human activeness monitoring and normal ...

    Jan 1, 2025 · 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 …

  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 …