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Donut Media, also known simply as Donut, is an American automotive content brand, known primarily for its eponymous YouTube channel and online merchandise store.
A coincidence rangefinder or coincidence telemeter is a type of rangefinder that uses the principle of triangulation and an optical device to allow an operator to determine the distance to a visible object.
Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
The Unit Identification Code (UIC) is a six character alphanumeric code that uniquely identifies each United States Department of Defense entity. The UIC is often used on various paperwork to assign a soldier to a specific company in which they fall under.
Proprietary. macOS. MacLoggerDX is a full-featured amateur radio contact logger for macOS with Transceiver control, Rotor control, Callbook lookup, QSL handling (Hardcopy / LoTW / eQSL / Club Log), DX Cluster and spotting, and basic contesting support. It also works with WSJT-X to control the transceiver while making digital contacts, etc.
ACP-131 is the controlling publication for the listing of Q codes and Z codes. It is published and revised from time to time by the Combined Communications Electronics Board (CCEB) countries: Australia, New Zealand, Canada, United Kingdom, and United States.
The Standard Carrier Alpha Code, a two-to-four letter identification, is used by the transportation industry to identify freight carriers in computer systems and shipping documents such as Bill of Lading, Freight Bill, Packing List, and Purchase Order.
In mathematics, Choi's theorem on completely positive maps is a result that classifies completely positive maps between finite-dimensional (matrix) C*-algebras. An infinite-dimensional algebraic generalization of Choi's theorem is known as Belavkin 's "Radon–Nikodym" theorem for completely positive maps.
Alternately, if ^ and ^ were bounded operators, note that [^, ^] = ^, hence the operator norms would satisfy 2 ‖ p ^ ‖ ‖ x ^ n − 1 ‖ ‖ x ^ ‖ ≥ n ℏ ‖ x ^ n − 1 ‖ , {\displaystyle 2\left\|{\hat {p}}\right\|\left\|{\hat {x}}^{n-1}\right\|\left\|{\hat {x}}\right\|\geq n\hbar \left\|{\hat {x}}^{n-1}\right\|,}
Officially assigned code elements. The following is a complete list of the 249 current officially assigned ISO 3166-1 alpha-2 codes, with the following columns: [1] Code: ISO 3166-1 alpha-2 code, pointing to its ISO 3166-2 article.