Half-open Connection
Half-open may refer to: * Half-open file in chess * Half-open vowel, a class of vowel sound Computing and mathematics * Half-open interval, an interval containing only one of its endpoints * Half-open line segment, a line segment containing only one of its endpoints * TCP half-open, a TCP connection out of synchronization See also * Half-closed * Clopen In topology, a clopen set (a portmanteau of closed-open set) in a topological space is a set which is both open and closed. That this is possible may seem counter-intuitive, as the common meanings of and are antonyms, but their mathematical de ...

Half-open File
In chess, a half-open file (or semi-open file) is a with pawns of only one color. The half-open file can provide a line of attack for a player's rook or queen. A half-open file is generally exploited by the player with no pawns on it. Many openings, such as the Sicilian Defense, aim to complicate the position. In the main line Sicilian, 1.e4 c5 2.Nf3 d6 (or 2...e6, or 2...Nc6) 3.d4 cxd4 4.Nxd4, White obtains a half-open d-file, but Black can pressure White along the half-open c-file. In positions where White has no pawns on a file but Black has one pawn or more on that file, the position is considered to be half-opened for white. During instances where Black has zero pawns on a file but White has one or more pawns on that file, the position is considered to be half-opened for black. In such instances where pawns capture or advance, in a way that it opens or half-opens a file or files, this instance is called a pawn break. The demolition of the pawn structure is a common ...
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Half-open Vowel
An open-mid vowel (also mid-open vowel, low-mid vowel, mid-low vowel or half-open vowel) is any in a class of vowel sound used in some spoken languages. The defining characteristic of an open-mid vowel is that the tongue is positioned one third of the way from an open vowel to a close vowel. Partial list The open-mid vowels that have dedicated symbols in the International Phonetic Alphabet are: * open-mid front unrounded vowel * open-mid front rounded vowel * open-mid central unrounded vowel (older publications may use ) * open-mid central rounded vowel (older publications may use ) * open-mid back unrounded vowel * open-mid back rounded vowel The open-mid back rounded vowel, or low-mid back rounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is . The IPA symbol is a turned letter ''c'' a ... Other open-mid vowels can be indicated with diacritics of relative articula ...
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Half-open Interval
In mathematics, a (real) interval is a set of real numbers that contains all real numbers lying between any two numbers of the set. For example, the set of numbers satisfying is an interval which contains , , and all numbers in between. Other examples of intervals are the set of numbers such that , the set of all real numbers \R, the set of nonnegative real numbers, the set of positive real numbers, the empty set, and any singleton (set of one element). Real intervals play an important role in the theory of integration, because they are the simplest sets whose "length" (or "measure" or "size") is easy to define. The concept of measure can then be extended to more complicated sets of real numbers, leading to the Borel measure and eventually to the Lebesgue measure. Intervals are central to interval arithmetic, a general numerical computing technique that automatically provides guaranteed enclosures for arbitrary formulas, even in the presence of uncertainties, mathematical ...
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Half-open Line Segment
In geometry, a line segment is a part of a straight line that is bounded by two distinct end points, and contains every point on the line that is between its endpoints. The length of a line segment is given by the Euclidean distance between its endpoints. A closed line segment includes both endpoints, while an open line segment excludes both endpoints; a half-open line segment includes exactly one of the endpoints. In geometry, a line segment is often denoted using a line above the symbols for the two endpoints (such as \overline). Examples of line segments include the sides of a triangle or square. More generally, when both of the segment's end points are vertices of a polygon or polyhedron, the line segment is either an edge (of that polygon or polyhedron) if they are adjacent vertices, or a diagonal. When the end points both lie on a curve (such as a circle), a line segment is called a chord (of that curve). In real or complex vector spaces If ''V'' is a vector space ove ...
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TCP Half-open
TCP may refer to: Science and technology * Transformer coupled plasma * Tool Center Point, see Robot end effector Computing * Transmission Control Protocol, a fundamental Internet standard * Telephony control protocol, a Bluetooth communication standard Medicine * TCP (antiseptic) * Tenocyclidine, an anesthetic drug * Toxin-coregulated pilus, a protein that allows ''Vibrio cholerae'' to adhere to enterocytes * Transcutaneous pacing Chemistry * 1,2,3-Trichloropropane, an industrial solvent * Thermal conversion process, a depolymerization process for producing crude oil from waste * Tocopherols, a class of methylated phenols * Tricalcium phosphate, an anticaking agent * Trichlorophenol, any organochloride of phenol that contains three covalently bonded chlorine atoms * Tricresyl phosphate, an organophosphate compound Organizations * Taiwan Communist Party, a political party in Taiwan * Text Creation Partnership, an archival digitization effort at the University of Michiga ...
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