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 …
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 …
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 …
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…
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 …
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 …
piR-27222 mediates PM2.5-induced lung cancer by resisting cell ...
Aug 1, 2024 · PM2.5 pollution has been associated with the incidence of lung cancer, but the underlying mechanism is still unclear. PIWI-interacting RNAs (piRNAs), …
Determination of the impact of environmental temperature on the …
Sep 1, 2021 · In winter, in the case of PIR insulation in Toronto, the thermal conductivity in the wall and flat roof increases as the ambient temperature decreases. In addition, in flat roofs, the thermal …
Self-supporting flexible electrode-integrated microfluidic ECL sensor ...
Nov 1, 2025 · The integration of electrochemiluminescence (ECL) sensor into microfluidic chip can greatly improve the convenience and reliability in bioanalysis, en…
The pir multigene family of Plasmodium: Antigenic variation and …
Apr 1, 2010 · The pir (Plasmodium interspersed repeat) multigene family, which was first described in P. vivax [12], is the largest gene family known to date, present in human, primate and rodent malarias.