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  2. Digital selective calling - Wikipedia

    en.wikipedia.org/wiki/Digital_Selective_Calling

    Digital selective calling (DSC) is a standard for transmitting predefined digital messages via the medium-frequency (MF), high-frequency (HF) and very-high-frequency (VHF) maritime radio systems. It is a core part of the Global Maritime Distress Safety System (GMDSS).

  3. Global Maritime Distress and Safety System - Wikipedia

    en.wikipedia.org/wiki/Global_Maritime_Distress...

    The Global Maritime Distress and Safety System (GMDSS) is a worldwide system for automated emergency signal communication for ships at sea developed by the United Nations' International Maritime Organization (IMO) as part of the SOLAS Convention. [ 1 ]: 1. It is a set of safety procedures, types of equipment, and communication protocols used ...

  4. International distress frequency - Wikipedia

    en.wikipedia.org/wiki/International_distress...

    121.5 MHz is the civilian aircraft emergency frequency or International Air Distress frequency. It is used by some civilian emergency locator beacons; however, the Cospas-Sarsat system no longer monitors the frequency. 243 MHz for NATO military aircraft emergency frequencies. 406 MHz to 406.1 MHz is used by the Cospas-Sarsat international ...

  5. Document Structuring Conventions - Wikipedia

    en.wikipedia.org/wiki/Document_Structuring...

    Document Structuring Conventions (DSC) is a set of standards for PostScript, based on the use of comments, that specifies a way to structure a PostScript file and a way to expose that structure in a machine-readable way. A PostScript file that conforms to DSC is called a conforming document. The need for a structuring convention arises since ...

  6. Download, install, or uninstall AOL Desktop Gold - AOL Help

    help.aol.com/articles/aol-desktop-downloading...

    Download Desktop Gold. AOL Desktop Gold is included at no additional cost with your membership. 2. Under 'All Products' scroll to 'AOL Desktop Gold'. If you have an AOL Desktop Gold trial or subscription. Using the link in the Official AOL signup confirmation email you received. 1.

  7. Dye-sensitized solar cell - Wikipedia

    en.wikipedia.org/wiki/Dye-sensitized_solar_cell

    Dye-sensitized solar cell. A selection of dye-sensitized solar cells. A dye-sensitized solar cell (DSSC, DSC, DYSC[1] or Grätzel cell) is a low-cost solar cell belonging to the group of thin film solar cells. [2] It is based on a semiconductor formed between a photo-sensitized anode and an electrolyte, a photoelectrochemical system.

  8. Fertilizer - Wikipedia

    en.wikipedia.org/wiki/Fertilizer

    Although nitrogen makes up most of the atmosphere, it is in a form that is unavailable to plants. Nitrogen is the most important fertilizer since nitrogen is present in proteins (amide bonds between amino acids), DNA (puric and pyrimidic bases), and other components (e.g., tetrapyrrolic heme in chlorophyll

  9. Camera phone - Wikipedia

    en.wikipedia.org/wiki/Camera_phone

    Sony SmartShot QX series, announced and released in mid 2013. They include the DSC-QX100/B, [22] the large Sony ILCE-QX1, and the small Sony DSC-QX30. Kodak PixPro smart lens camera series, announced in 2014. [23] The DxO ONE a small camera that attached to an Apple iPhone or iPad using the Lightning connector port. [24]