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 …
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 …
Mechanical and thermal properties of polyisocyanurate rigid foams ...
Dec 1, 2023 · The use of polyisocyanurate (PIR) foams as a substitute for polyurethane (PUR) is steadily growing for insulation, flooring, and roofing applications, given PIR's higher flammability …
Abdominal adiposity and family income-to-poverty ratio in American ...
May 1, 2014 · PIR was calculated by dividing family income by the poverty guidelines, specific to appropriate year and participant's state. In cases where family income was reported as a range …
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. …
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 …
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 …
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 …
Passive infrared sensor dataset and deep learning models for device ...
Jan 1, 2023 · 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 …
Role and mechanism of piR-0228 targeting RIPK1 to regulate vascular ...
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 …