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 …
Mechanical and thermal properties of polyisocyanurate rigid …
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 …
The RNA phosphatase PIR-1 regulates endogenous small
Feb 4, 2021 · PIR-1 also regulates the CSR-1 22G-RNA pathway and has critical functions in both somatic and germline development. Our findings suggest that PIR-1 modulates both Dicer …
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, …
Passive infrared sensor dataset and deep learning models for …
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 …
Experimental and numerical study of temperature developments …
Jun 1, 2017 · This paper presents the results of an experimental and numerical investigation of temperature developments in sandwich panels consisting of steel shee…
Bifurcation analysis and control in a second-order DC–AC inverter …
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 …
Chemical gradients in PIR foams as probed by ATR-FTIR analysis …
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 …
Thermal degradation of highly crosslinked rigid PU-PIR foams …
Sep 1, 2019 · This study presents the development and analysis of rigid polyurethane-polyisocyanurate (PU-PIR) foam synthesized from high functionality tall oil (TO…
Abdominal adiposity and family income-to-poverty ratio in …
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 …