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Emblem of the 645 Aeronautical Systems Group. Big Safari is a United States Air Force program begun in 1952 which provides management, direction, and control of the acquisition, modification, and logistics support for special purpose weapons systems derived from existing aircraft and systems.
The term human blood group systems is defined by the International Society of Blood Transfusion (ISBT) as systems in the human species where cell-surface antigens—in particular, those on blood cells—are "controlled at a single gene locus or by two or more very closely linked homologous genes with little or no observable recombination between them", [1] and include the common ABO and Rh ...
NCS Pte. Ltd. (also known as NCS Group, previously known as National Computer Systems) is a multinational information technology company headquartered in Singapore. Founded in 1981 as an agency of the Singapore government , it was privatised in 1996 and subsequently become part of the Singtel group in 1997.
The domain com is a top-level domain (TLD) in the Domain Name System (DNS) of the Internet.Created in the first group of Internet domains at the beginning of 1985, its name is derived from the word commercial, [1] indicating its original intended purpose for subdomains registered by commercial organizations.
In a traditional half-duplex land mobile radio system a group of users (a talkgroup) with mobile and portable two-way radios communicate over a single shared radio channel, with one user at a time talking. These systems typically have access to multiple channels, up to 40-60, so multiple groups in the same area can communicate simultaneously.
The U.S. Department of Defense (DoD) classifies unmanned aerial systems (UAS) into "Groups" according to their size and capability, a joint system that replaced the service branches' separate categorization schemes in 2011. [1] [2] [3] The "Group" system has five categories, whose capabilities increase with the number. [4]
Stock Name Symbol D-Box Technologies Inc. DBO: Data Communications Management Corp. DCM: Delta 9 Cannabis Inc. DN: Denison Mines Corp. DML: Descartes Systems Group Inc.
In number theory, a Descartes number is an odd number which would have been an odd perfect number if one of its composite factors were prime.They are named after René Descartes who observed that the number D = 3 2 ⋅7 2 ⋅11 2 ⋅13 2 ⋅22021 = (3⋅1001) 2 ⋅ (22⋅1001 − 1) = 198585576189 would be an odd perfect number if only 22021 were a prime number, since the sum-of-divisors ...