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  1. Portland International Raceway

    Portland International Raceway offers residents and people from throughout the region a place to play — with cars, motorcycles, bicycles and so much more — a compact 300-acre park setting …

  2. Welcome to PIR [Protein Information Resource]

    The Universal Protein Resource (UniProt) provides the scientific community with a single, centralized, authoritative resource for protein sequences and functional information.

  3. PIR - Definition by AcronymFinder

    What does PIR stand for? PIR abbreviation. Define PIR at AcronymFinder.com.

  4. Portland International Raceway // Calendar

    If you have ever wanted to get a taste of racing, or just experience the thrill of going quickly in a safe environment, PIR track days are for you. Whether you are in a car or on a motorcycle, we …

  5. Texas Franchise Tax Public Information Report (PIR) and …

    Entity types and related public information filing requirements for franchise tax.

  6. Who We Are - PIR

    As our name implies, PIR serves the public interest online. Based in Reston, Virginia, Public Interest Registry is a nonprofit organization created by the Internet Society to manage the …

  7. How PIRs Work | PIR Motion Sensor | Adafruit Learning System

    Jan 28, 2014 · PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, …

  8. Passive infrared sensor - Wikipedia

    A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion …

  9. PIR传感器选型及其使用介绍 - 知乎

    PIR传感器 (Passive Infrared Sensor),即被动式红外传感器。 它因为功耗低,价格低廉,使用简单从而被大量使用在门铃、猫眼、感应开关、小夜灯、安防等消费类产品上。 PIR还有一个别 …

  10. Portland International Raceway // This Week

    The PIR Night Grudge Drags are the place to test and tune your ET dragster or put your street car on the track in a safe environment. Don't race on the street, race at PIR.

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