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  2. Position sensitive device - Wikipedia

    en.wikipedia.org/wiki/Position_sensitive_device

    2-D tetra-lateral position sensitive device (PSD) A 2-D tetra-lateral PSD is capable of providing continuous position measurement of the incident light spot in 2-D. It consists of a single square PIN diode with a resistive layer. When there is an incident light on the active area of the sensor, photocurrents are generated and collected from ...

  3. Open Location Code - Wikipedia

    en.wikipedia.org/wiki/Open_Location_Code

    Location codes created by the OLC system are referred to as "plus codes". Open Location Code is a way of encoding location into a form that is easier to use than showing coordinates in the usual form of latitude and longitude. Plus codes are designed to be used like street addresses and may be especially useful in places where there is no ...

  4. PSD - Wikipedia

    en.wikipedia.org/wiki/PSD

    PSD (rapper), a Californian rapper and hip-hop producer; Port Said Airport, Egypt (IATA code PSD) Private Sector Development, term used in international development; PSD Bank, German banking group; Patricia Street Deli, a famous sandwich and soup restaurant located in the tourist town of Jasper, Alberta, Canada

  5. Particle-size distribution - Wikipedia

    en.wikipedia.org/wiki/Particle-size_distribution

    PSD is usually defined by the method by which it is determined. The most easily understood method of determination is sieve analysis, where powder is separated on sieves of different sizes. Thus, the PSD is defined in terms of discrete size ranges: e.g. "% of sample between 45 μm and 53 μm", when sieves of these sizes are used.

  6. Security detail - Wikipedia

    en.wikipedia.org/wiki/Security_detail

    A security detail, often known as a PSD (protective services detail, personal security detachment, personal security detail) or PPD (personal protection detail), is a protective team assigned to protect the personal security of an individual or group. PSDs can be made up of multiple federal and state government organisations, military personnel ...

  7. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    In the table below, the column "ISO 8859-1" shows how the file signature appears when interpreted as text in the common ISO 8859-1 encoding, with unprintable characters represented as the control code abbreviation or symbol, or codepage 1252 character where available, or a box otherwise. In some cases the space character is shown as ␠.

  8. What Is a Billing Zip Code? How To Find Yours for Your ... - AOL

    www.aol.com/finance/billing-zip-code-yours...

    Go to USPS.com and click on “Find a Zip Code.” Look up your account information on the credit card company’s website. Call your credit card company’s customer service line.

  9. District of Columbia Protective Services Division - Wikipedia

    en.wikipedia.org/wiki/District_of_Columbia...

    PSD officers are sworn law enforcement personnel with full police authority delegated from the Mayor of the District of Columbia and have the authority to bear firearms, serve warrants, and make full custodial arrests throughout the District of Columbia [2] [3]