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  2. Harmonized System - Wikipedia

    en.wikipedia.org/wiki/Harmonized_System

    Harmonized System. The Harmonized Commodity Description and Coding System, also known as the Harmonized System ( HS) of tariff nomenclature is an internationally standardized system of names and numbers to classify traded products. It came into effect in 1988 and has since been developed and maintained by the World Customs Organization (WCO ...

  3. ISO 4217 - Wikipedia

    en.wikipedia.org/wiki/ISO_4217

    An airline ticket showing the price with ISO 4217 code "EUR" (bottom left) and not with euro currency sign " € "ISO 4217 is a standard published by the International Organization for Standardization (ISO) that defines alpha codes and numeric codes for the representation of currencies and provides information about the relationships between individual currencies and their minor units.

  4. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes.

  5. Reed–Solomon error correction - Wikipedia

    en.wikipedia.org/wiki/Reed–Solomon_error...

    The Reed–Solomon code is a [n, k, n − k + 1] code; in other words, it is a linear block code of length n (over F) with dimension k and minimum Hamming distance = + The Reed–Solomon code is optimal in the sense that the minimum distance has the maximum value possible for a linear code of size ( n , k ); this is known as the Singleton bound .

  6. List of missions to Mars - Wikipedia

    en.wikipedia.org/wiki/List_of_missions_to_Mars

    Landed on 14 May 2021 [37] Deployed by the Tianwen-1 lander on 22 May 2021. Became inactive on 20 May 2022. Tianwen-1 Remote Camera Lander Successful Landed on 14 May 2021 Deployed by the Zhurong rover on 1 June 2021. [38] Tianwen-1 Deployable Camera 2 [39] Orbiter Successful Entered orbit on 10 February 2021, deployed 31 December 2021 47 Mars 2020

  7. List of Schedule II controlled substances (U.S.) - Wikipedia

    en.wikipedia.org/wiki/List_of_Schedule_II...

    This is the list of Schedule II controlled substances in the United States as defined by the Controlled Substances Act. [ 1] The following findings are required for substances to be placed in this schedule: [ 2] The drug or other substance has a high potential for abuse. The drug or other substance has a currently accepted medical use in ...

  8. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    Low-density parity-check (LDPC) codes are a class of highly efficient linear block codes made from many single parity check (SPC) codes. They can provide performance very close to the channel capacity (the theoretical maximum) using an iterated soft-decision decoding approach, at linear time complexity in terms of their block length.

  9. Hohem - Wikipedia

    en.wikipedia.org/wiki/Hohem

    Worldwide. Shenzhen Hohem Technology Co., Ltd., is a technology company based in Shenzhen, China. It is dedicated to the independent research, development, production, and sales of stabilizers and flight control systems. It was founded by Chen Min in 2014. Hohem's products are designed for smartphones, action cameras, and DSLR cameras.