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- Sensitivity enhancement of Passive Infrared (PIR) sensor for motion . . .
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 measure of the change in output to unit change in input of the sensor
- Passive Infrared Sensor - an overview | ScienceDirect Topics
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 measure devices emitting infrared light in their field of view Each body with a temperature above zero releases heat energy, which is in the form of radiation PIR sensors detect infrared radiation that is reflected
- Privacy-concerned averaged human activeness monitoring and normal . . .
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 emphasizing privacy preservation and cost-effectiveness, this study highlights the advantages of using a single PIR sensor for comprehensive human activeness monitoring
- Review of signal processing applications of Pyroelectric Infrared (PIR . . .
The article reviews signal processing applications of Pyroelectric Infrared (PIR) sensors with the main focus on the respiration and pulse rate detect…
- Design of Smart Home Security System using Object Recognition and PIR . . .
This research aims to design and implement a home security system with the capability for human detection The traditional home security system, i e …
- CD40 induces PIR-A+ macrophages to promote chronic allograft rejection
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 prolonged allograft survival Conditional deletion of Pira in recipient’s macrophages inhibited chronic rejection and promoted long-term allograft acceptance
- Role and mechanism of piR-0228 targeting RIPK1 to . . . - ScienceDirect
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 demonstrated the protective effects of piR-0228 in vivo by constructing a mouse model of AD
- Research paper
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 modulation The output current (purple solid line) and voltage (green solid line) waveforms are shown in Fig 3
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