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  2. Kansas Department of Corrections - Wikipedia

    en.wikipedia.org/wiki/Kansas_Department_of...

    Agency executive. Jeff Zmuda, Secretary of Corrections. Website. doc .ks .gov. The Kansas Department of Corrections (KDOC) [1] is a cabinet-level agency of Kansas that operates the state's correctional facilities, both juvenile and adult, the state's parole system, and the state's Prisoner Review Board. It is headquartered in Topeka.

  3. Alabama Department of Corrections - Wikipedia

    en.wikipedia.org/wiki/Alabama_Department_of...

    15. 18. Website. ADOC Website. The Alabama Department of Corrections ( ADOC) is the agency responsible for incarceration of convicted felons in the state of Alabama in the United States. It is headquartered in the Alabama Criminal Justice Center in Montgomery. [1] [2] Alabama has relatively long mandatory sentencing laws compared to most other ...

  4. Periscope - Wikipedia

    en.wikipedia.org/wiki/Periscope

    e Lens of the observer's eye. f Right-angled prism. g Image-erecting prism. A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position.

  5. Camera lucida - Wikipedia

    en.wikipedia.org/wiki/Camera_lucida

    Camera lucida in use. A camera lucida is an optical device used as a drawing aid by artists and microscopists . The camera lucida projects an optical superimposition of the subject being viewed, onto the surface upon which the artist is drawing. The artist sees both scene and drawing surface simultaneously, as in a photographic double exposure.

  6. Bessel's correction - Wikipedia

    en.wikipedia.org/wiki/Bessel's_correction

    Bessel's correction. In statistics, Bessel's correction is the use of n − 1 instead of n in the formula for the sample variance and sample standard deviation, [1] where n is the number of observations in a sample. This method corrects the bias in the estimation of the population variance. It also partially corrects the bias in the estimation ...

  7. Time base correction - Wikipedia

    en.wikipedia.org/wiki/Time_base_correction

    Time base correction (TBC) is a technique to reduce or eliminate errors caused by mechanical instability present in analog recordings on mechanical media.. Without time base correction, a signal from a videotape recorder (VTR) or videocassette recorder (VCR), cannot be mixed with other, more time-stable devices found in television studios and post-production facilities.

  8. Roof prism - Wikipedia

    en.wikipedia.org/wiki/Roof_prism

    Roof prism. A roof pentaprism used in Single-lens reflex cameras; the lower right face is the roof ( dach ). A roof prism, also called a Dachkanten prism or Dach prism (from German: Dachkante, lit. "roof edge"), is a reflective prism containing a section where two faces meet at a 90° angle, resembling the roof of a building and thus the name.

  9. Nicol prism - Wikipedia

    en.wikipedia.org/wiki/Nicol_prism

    Nicol prism. A Nicol prism is a type of polarizer. It is an optical device made from calcite crystal used to convert ordinary light into plane polarized light. It is made in such a way that it eliminates one of the rays by total internal reflection, i.e. the ordinary ray is eliminated and only the extraordinary ray is transmitted through the ...