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K4 (other)
K4 or K-4 may refer to: Military * Daewoo K4, a South Korean automatic grenade launcher * HMS ''K4'', a 1915 British K class submarine * K 4 or Norrland Dragoon Regiment, a Swedish Army cavalry regiment * K-4 (SLBM), an Indian submarine-launched ballistic missile * USS ''K-4'' (SS-35), a 1914 United States Navy K-class submarine Transport * China Railway K3/4 * K-4 (Kansas highway), a highway in Kansas * Kalitta Air, IATA code K4, an American cargo airline * LNER Class K4, a British class of 2-6-0 steam locomotives * London Buses route K4, a Transport for London contracted bus route * PRR K4s or Pennsylvania Railroad Type K4, a class of American 4-6-2 steam locomotives Other uses * K4, a Security company * K4, a four-man sprint kayak * K4, a model of the British red telephone box * K4, a normal modal logic * K, in graph theory, the complete graph of four vertices * K, in abstract algebra, the Klein four-group * K4 (mountain) or Gasherbrum II, a mountain between Chi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daewoo K4
The Daewoo Precision Industries K4 is a 40x53mm high-speed Automatic Grenade Launcher in use with the Republic of Korea Armed Forces. The K4 was developed as a complement to the K-201 hand-held grenade launcher (attachable to the K2). History The K4 was first developed in 1994. Design It has a weight of 65.9 kg and can fire up to 325 rounds per minute with a firing range of 1.5 km. When needed to be used during night operations, a KAN/TVS-5 night vision scope can be attached onto the receiver. The K4 is said to visually resemble the Mk 19 AGL. Users *: Small numbers used by Iraqi special forces on Humvees. *: First export customer, purchased the K4 in 2009. *: Purchased since 2011. *: Several hundred K4s ordered in 2022. * *: 17 K4s transferred according to a 2019 SIPRI small arms report. See also *Mk 19 grenade launcher The Mk 19 grenade launcher (pronounced Mark 19) is an American 40 mm belt-fed automatic grenade launcher that was first developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sprint Kayak
Sprint kayak is a sport held on calm water (lakes, flatwater streams, etc. with little waves). The paddler is seated, facing forward, and uses a double-bladed paddle pulling the blade through the water on alternate sides to propel the boat forward. Kayak sprint has been in every summer Olympics since it debuted at the 1936 Summer Olympics. Racing is governed by the International Canoe Federation. History and design Boats may have one rudder which must be under the hull of the boat. The rudder is controlled by the feet of the paddler (the foremost paddler in multi–person designs). The boat to be designed to be a sit-in, as opposed to a sit-on surf ski. Crews or individuals race over 200 m, 500 m, 1000 m, or 5000 m, with the winning boat being the first to cross the finish line. In competition the number of paddlers within a boat is indicated by a figure beside the type of boat; K1 signifies an individual kayak race, K2 pairs, and K4 four-person crews. A K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koalisyon Ng Katapatan At Karanasan Sa Kinabukasan
The Koalisyon ng Katapatan at Karanasan sa Kinabukasan (''K4, Coalition of Truth and Experience for Tomorrow'') is the political multi-party electoral alliance that supported president Gloria Macapagal Arroyo, who won 2004 Philippine presidential election. It is the remnant of the People Power Coalition that was formed following the ascendancy of President Gloria Macapagal Arroyo to power. Arroyo is seeking a complete term under this coalition with Sen. Noli de Castro, an independent, yet popular, politician, as her running mate. The leading party in this coalition is the ruling Lakas-Christian Muslim Democrats (Lakas-CMD), of which Arroyo is a member. Other parties under this coalition are the Liberal Party, the Nationalist People's Coalition, the Nacionalista Party, the Partido Demokratiko Sosyalista ng Pilipinas and the People's Reform Party as well as the Kabalikat ng Mamamayang Pilipino. K-4 Senatorial Slate Election results 7 out of 12 candidates won the possible 12 seat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kawai Musical Instruments
is a musical instrument manufacturing company headquartered in Hamamatsu, Shizuoka, Japan. It is best known for its grand pianos, upright pianos, digital pianos, electronic keyboards and electronic synthesizers. The company was founded in August 1927. History Koichi Kawai, the company founder, was born in Hamamatsu, Japan in 1886. His neighbor, Torakusu Yamaha, a watchmaker and reed organ builder, took him in as an apprentice. Kawai became a member of the research and development team that introduced pianos to Japan. Yamaha died in 1916, and in the 1920s the piano industry faltered in Japan. New management took over control of Yamaha's company, Nippon Gakki Co. (later renamed the Yamaha Corporation), and began to diversify its production line. This led Kawai to leave Nippon Gakki in 1927 and found the Kawai Musical Instrument Research Laboratory. After Koichi Kawai's death in 1955, his son, Shigeru Kawai became company president at 33 and expanded production facilities. In 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kawai K4
The Kawai K4 is a 61 key synthesizer manufactured in 1989 by Kawai. It contains several features beyond those offered on Kawai's K1, adding resonant filters and a DAC PCM Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amp ... wavetable. The K4 incorporated a new type of synthesis called Digital Multi Spectrum. Features * 2 line LCD screen * 256 16 bit, 32 kHz internal waveforms (96 Digital Cyclic waveforms and 160 PCM samples) * Drum section (61 drum patches) Interestingly, the K4 uses a system that splits 16 bit samples between two read only memory (ROM) chips, while reserving a third chip for 8 bit sound samples that naturally have more noise (such as cymbals, snares, and other noisier percussion) in order to have more functionality for a cheaper manufacturing cost. Kawai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K4 (mountain)
Gasherbrum II ( ur, ; ); surveyed as K4, is the 13th highest mountain in the world at above sea level. It is the third-highest peak of the Gasherbrum massif, and is located in the Karakoram, on the border between Gilgit–Baltistan, Pakistan and Xinjiang, China. The mountain was first climbed on July 7, 1956, by an Austrian expedition which included Fritz Moravec, Josef Larch, and Hans Willenpart. Geography Gasherbrum II is located on the border of Gilgit–Baltistan, Pakistan, and Xinjiang, China. It is part of the Karakoram mountain range in the Himalayas, and located at the top of the Baltoro Glacier. With an elevation of it is the third-highest member of the Gasherbrum group, behind Gasherbrum I () and Broad Peak (). Gasherbrum III is sometimes considered to be a subpeak of Gasherbrum II, because the former has a topographic prominence of only . Naming In 1856, Thomas George Montgomerie, a member of the British Royal Engineers and part of the Great Trigonometric Survey, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klein Four-group
In mathematics, the Klein four-group is a Group (mathematics), group with four elements, in which each element is Involution (mathematics), self-inverse (composing it with itself produces the identity) and in which composing any two of the three non-identity elements produces the third one. It can be described as the symmetry group of a non-square rectangle (with the three non-identity elements being horizontal and vertical reflection and 180-degree rotation), as the group of bitwise operation, bitwise exclusive or operations on two-bit binary values, or more abstract algebra, abstractly as , the Direct product of groups, direct product of two copies of the cyclic group of Order (group theory), order 2. It was named ''Vierergruppe'' (meaning four-group) by Felix Klein in 1884. It is also called the Klein group, and is often symbolized by the letter V or as K4. The Klein four-group, with four elements, is the smallest group that is not a cyclic group. There is only one other group ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Complete Graph
In the mathematical field of graph theory, a complete graph is a simple undirected graph in which every pair of distinct vertices is connected by a unique edge. A complete digraph is a directed graph in which every pair of distinct vertices is connected by a pair of unique edges (one in each direction). Graph theory itself is typically dated as beginning with Leonhard Euler's 1736 work on the Seven Bridges of Königsberg. However, drawings of complete graphs, with their vertices placed on the points of a regular polygon, had already appeared in the 13th century, in the work of Ramon Llull. Such a drawing is sometimes referred to as a mystic rose. Properties The complete graph on vertices is denoted by . Some sources claim that the letter in this notation stands for the German word , but the German name for a complete graph, , does not contain the letter , and other sources state that the notation honors the contributions of Kazimierz Kuratowski to graph theory. has edges (a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Normal Modal Logic
In logic, a normal modal logic is a set ''L'' of modal formulas such that ''L'' contains: * All propositional tautologies; * All instances of the Kripke schema: \Box(A\to B)\to(\Box A\to\Box B) and it is closed under: * Detachment rule (''modus ponens''): A\to B, A \in L implies B \in L; * Necessitation rule: A \in L implies \Box A \in L. The smallest logic satisfying the above conditions is called K. Most modal logics commonly used nowadays (in terms of having philosophical motivations), e.g. C. I. Lewis's S4 and S5, are normal (and hence are extensions of K). However a number of deontic and epistemic logic Epistemic modal logic is a subfield of modal logic that is concerned with reasoning about knowledge. While epistemology has a long philosophical tradition dating back to Ancient Greece, epistemic logic is a much more recent development with applica ...s, for example, are non-normal, often because they give up the Kripke schema. Every normal modal logic is regular and hen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Telephone Box
The red telephone box, a telephone kiosk for a public telephone designed by Sir Giles Gilbert Scott, is a familiar sight on the streets of the United Kingdom, Malta, Bermuda and Gibraltar. Despite a reduction in their numbers in recent years, the traditional British red telephone kiosk can still be seen in many places throughout the UK, and in current or former British colonies around the world. The colour red was chosen to make them easy to spot. From 1926 onwards, the fascias of the kiosks were emblazoned with a prominent crown, representing the British government. The red phone box is often seen as a British cultural icon throughout the world. In 2006, the K2 telephone box was voted one of Britain's top 10 design icons, which included the Mini, Supermarine Spitfire, London tube map, World Wide Web, Concorde and the AEC Routemaster bus. In 2009, the K2 was selected by the Royal Mail for their "British Design Classics" commemorative postage stamp issue. Many of the phone bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PRR K4s
The Pennsylvania Railroad (PRR) K4 4-6-2 "Pacific" (425 built 1914–1928, PRR Altoona, Baldwin) was its premier passenger-hauling steam locomotive from 1914 through the end of steam on the PRR in 1957. Attempts were made to replace the K4s, including the K5 and the T1 duplex locomotive, but neither was very successful. The K4s hauled the vast majority of express passenger trains until they were replaced by diesel locomotives. The K4s were not powerful enough for the heavier trains they often pulled from the mid-1930s onward, so they were often double- or even triple-headed, sometimes with atlantic class locomotives. This was effective, but expensive, and several crews were needed. The PRR did have the extra locomotives, many having been displaced by electrification east of Harrisburg. The two preserved K4s Nos. 1361 and 3750 were designated as Pennsylvania's official state steam locomotives on December 18, 1987, when Pennsylvania Governor Robert P. Casey signed into l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS K4
HMS ''K4'' was a British K-class submarine built by Vickers in Barrow-in-Furness. She was laid down on 28 June 1915 and commissioned on 1 January 1917, one year before the end of World War I. Accidents January 1917 In January 1917 HMS K4 ran aground on Walney Island. The British submarine giant was stranded on its beach but was undamaged. She was refloated the next day. 17 November 1917 On 17 November 1917, ''K4'' collided with sister ship during an accident off the Danish coast. The light cruiser operating with ''K1'' had to make a sharp turn to avoid three units from the 4th Cruiser Squadron. And in the confusion, ''K4'' collided with ''K1''. The crew of ''K1'' were rescued and ''K1'' sunk by the ''Blonde''. The K4 was under the command of Lieutenant-Commander Alfred Fenner. There is a blue plaque on the wall of his home in the town of Cromer in Norfolk. Loss ''K4'' was lost on 31 January 1918 during the night time fleet exercises later known as the Battle of May Isl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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