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B-type Stars
B type or Type B may refer to: Astronomy * B-type asteroid, a type of relatively uncommon type of carbonaceous asteroid * B-type giant, a type of blue giant star * B-type star, a type of star Biology * B type blood, a type in the ABO blood group system * B type inclusion, a type of inclusions in cells infected with poxvirus * B-type natriuretic peptide, a type of brain natriuretic peptides * B type proanthocyanidin, a specific type of flavanoids * Type B evaluation of uncertainty, an uncertainty in measurement inferred from scientific judgement or other information concerning the possible values of the quantity * Type B personality, a type in the Type A and Type B personality theory Others * B-type warbird, a type of Romulan starship * Type B videotape, an open-reel videotape format * Curtiss-built B-type, a type of B class blimp * LGOC B-type, a model of double-decker bus that was introduced in London on 1910 * Mann Egerton Type B, a 1910s British maritime patrol aircraft * Toy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-type Asteroid
B-type asteroids are a relatively uncommon type of carbonaceous asteroid, falling into the wider C-group; the 'B' indicates these objects are spectrally blue. In the asteroid population, B-class objects can be found in the outer asteroid belt, and also dominate the high-inclination Pallas family which includes the third-largest asteroid 2 Pallas. They are thought to be primitive, volatile-rich remnants from the early Solar System. There are 65 known B-type asteroids in the SMASS classification, and 9 in the Tholen classification as of March 2015. Characteristics Generally similar to the C-type objects, but differing in that the ultraviolet absorption below 0.5 μm is small or absent, and the spectrum is rather slightly bluish than reddish. The albedo also tends to be greater than in the generally very dark C type. Spectroscopy of B-class objects suggests major surface constituents of anhydrous silicates, hydrated clay minerals, organic polymers, magnetite, and sulfides. The c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type B Videotape
1–inch type B VTR (designated Type B by SMPTE) is a reel-to-reel analog recording video tape format developed by the Bosch Fernseh division of Bosch in Germany in 1976. The magnetic tape format became the broadcasting standard in continental Europe, but adoption was limited in the United States and United Kingdom, where the Type C videotape VTR met with greater success. Details The tape speed allowed 96 minutes on a large reel (later 120 minutes), and used 2 record/playback (R/P) heads on the drum rotating at 9,000 RPM with a 190-degree wrap around a very small head drum, recording 52 video lines per head segment. A single video frame was recorded across 6 tracks in the tape. The format only allowed for play, rewind and fast forward. Video is recorded on an FM signal with a bandwidth of 5.5 MHz. Three longitudinal audio tracks are recorded on the tape as well: two audio and one Linear timecode (LTC) track. BCN 50 VTRs were used at the 1980 Summer Olympics in Moscow. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type B Ship
The Type B ship is a United States Maritime Administration (MARAD) designation for World War II barges. Barges are very low cost to build, operate and move. Barges were needed to move large bulky cargo. A tug boat, some classed as Type V ships, could move a barge, then depart and move on to the next task. That meant the barge did not have to be rushed to be unloaded or loaded. Toward the end of World War 2, some ships that had not been completed in time for the war were converted to barges. US Navy barges are given the prefix: YWN or YW. Due to shortage of steel during World War II, concrete ship constructors were given contracts to build concrete barges, with ferrocement and given the prefix YO, YOG, YOGN. Built in 1944 and 1945, some were named after elements. World War II barge types Steel Barge *Built by Alabama Drydock and Shipbuilding Company in Mobile, AL, Type Coal, Design # 1039 * USSB # 301 Name ''Darien Barge'' sold to Debardeleben Marine III, Texas in 1969 *USSB # 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vauxhall B-Type
The Vauxhall 27, 30 and 35 h.p. (Vauxhall chassis code "B" type) is a large six cylinder car manufactured by Vauxhall from 1910 to 1914. The 27 h.p. was Vauxhall's first six-cylinder car. History In 1904 Napier had introduced a six-cylinder-engined car onto the British market, a lead followed a year later by Rolls-Royce. Vauxhall decided to join this club and designer F.W. Hodges made an experimental six in 1905 with cylinders cast in two sets of three and chain drive but it never saw production. The car that would go into production as the B-type 27 hp had a completely new engine of 3473 cc with all six cylinders cast in one block in the prototype but production versions had reverted to two three-cylinder units and with capacity increased to 4525 cc. Engineering The chassis was similar to that used on the A-type and used semi elliptic leaf springs and rigid axles front and rear and was available in a choice of two wheelbases of or . The side-valve engine had a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toyota Type B Engine
The Type A engine was a straight-six engine produced from 1935 through 1947 by Toyota. The Type B was a technically more advanced version of the Type A. There was an enlarged version of this, called the Type D, but it did not enter production. The Type C was a straight-four engine derived from the Type A. Many parts were interchangeable between the Type A, Type B and Type C engines (e.g. pistons, valves, rods). Many of the same parts were also interchangeable with the Chevrolet Stovebolt engine, from which it was derived. The Type E was a copy of a DKW engine. The Type S was a straight-four engine that replaced the Type A, B and C in Toyota's passenger cars. Type A The Type A engine was Toyota's first production engine, being produced from 1935 through 1947. This engine was a pushrod, overhead valve, 6-cylinder, three bearing engine copied from the 1929–36 Chevrolet Gen-1 3 bearing Stovebolt L6 OHV engine. By virtue of a modified intake manifold it produced , while ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mann Egerton Type B
The Mann Egerton Type B was a 1910s British maritime patrol aircraft developed from the Short Type 184 by Mann Egerton and Company of Norwich. Design and development Mann Egerton were given a contract in 1915 to build the Short Type 184, a two-seat reconnaissance, bombing and torpedo carrying seaplane. As a result of experience gained with the Short 184 contract the company developed an improved version. The most noticeable difference was an increase of span of the upper wing. Operational history The Royal Naval Air Service operated all fifteen Type Bs on patrol duties. Operator ; *Royal Naval Air Service The Royal Naval Air Service (RNAS) was the air arm of the Royal Navy, under the direction of the Admiralty's Air Department, and existed formally from 1 July 1914 to 1 April 1918, when it was merged with the British Army's Royal Flying Corps t ... Specifications References * * See also {{aircontent, , related= , similar aircraft= , sequence= , lists= , see also= ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LGOC B-type
The LGOC B-type is a model of double-decker bus that was introduced in London in 1910. It was both built and operated by the London General Omnibus Company (LGOC). Design and pre-war service B-type buses were built in Walthamstow and replaced the X-type bus. It had a 34-seat capacity and is often considered to be the first mass-produced bus. The first bus began carrying passengers in 1911. By 1913 around 2500 had entered service. The B-type was designed by Frank Searle, who was chief engineer of the LGOC. It had a wooden frame, steel wheels, a worm drive and chain gearbox. Its top speed was , which was above the legal speed limit at that time of . However the vehicle could reach under the right conditions. B-types carried 16 passengers inside and had seats for 18 on the uncovered top deck. These outside seats were fitted with wet-weather canvas covers. Electric lighting was introduced from 1912, and headlights in 1913. Before this, it was thought that interior lighting would ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curtiss-built B-type
The B class blimps were patrol airships operated by the United States Navy during and shortly after World War I. The Navy had learned a great deal from the DN-1 fiasco. The result was the very successful B-type airships. Dr. Jerome Hunsaker was asked to develop a theory of airship design, Lt. John H. Towers had returned from Europe having inspected British designs, and using reports from attachés on British airship operations, the Navy was prepared to seek bids for blimps from American manufacturers.Althoff, William F, ''SkyShips'', New York: Orion Books, 1990, , pgs. 4-5. On 4 February 1917 the Secretary of the Navy directed that 16 nonrigid airships of Class B be procured. A February 12, 1917 meeting with the Chief of the Bureau of Construction and Repair, and representatives of Goodyear, Goodrich, Connecticut Aircraft Company, Curtiss Aeroplane and Motor Corporation, and U.S. Rubber Company, it was agreed that the order for 16 dirigibles was beyond the capability of any one co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-type Warbird
The Romulans () are an extraterrestrials in fiction, extraterrestrial race in the American science fiction franchise ''Star Trek''. They first appeared in the series ''Star Trek: The Original Series, Star Trek'' (1966–1969). They have appeared in most subsequent ''Star Trek'' releases, including ''Star Trek: The Animated Series, The Animated Series'', ''Star Trek: The Next Generation, The Next Generation'', ''Star Trek: Deep Space Nine, Deep Space Nine'', ''Star Trek: Voyager, Voyager'', ''Star Trek: Enterprise, Enterprise'', ''Star Trek: Discovery, Discovery'', ''Star Trek: Picard, Picard'', ''Star Trek: Strange New Worlds, Strange New Worlds'', and ''Star Trek: Lower Decks, Lower Decks''. They appear in the ''Star Trek'' Star Trek (film series), feature films ''Star Trek V: The Final Frontier'' (1989), ''Star Trek VI: The Undiscovered Country'' (1991), ''Star Trek: Nemesis'' (2002) and ''Star Trek (film), Star Trek'' (2009). They also appear in various other spin-off media, inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-type Giant
In astronomy, a blue giant is a hot star with a luminosity class of III (giant) or II (bright giant). In the standard Hertzsprung–Russell diagram, these stars lie above and to the right of the main sequence. The term applies to a variety of stars in different phases of development, all evolved stars that have moved from the main sequence but have little else in common, so blue giant simply refers to stars in a particular region of the HR diagram rather than a specific type of star. They are much rarer than red giants, because they only develop from more massive and less common stars, and because they have short lives in the blue giant stage. Because O-type & B-type stars with a giant luminosity classification are often somewhat more luminous than their normal main-sequence counterparts of the same temperatures and because many of these stars are relatively nearby to Earth on the galactic scale of the Milky Way Galaxy, many of the bright stars in the night sky are examples of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type B Personality
Type A and Type B personality hypothesis describes two contrasting personality types. In this hypothesis, personalities that are more competitive, highly organized, ambitious, impatient, highly aware of time management, or aggressive are labeled Type A, while more relaxed, "receptive", less "neurotic" and "frantic" personalities are labeled Type B. The two cardiologists, Meyer Friedman and Ray Rosenman, who developed this theory came to believe that Type A personalities had a greater chance of developing coronary heart disease. Following the results of further studies and considerable controversy about the role of the tobacco industry funding of early research in this area, some reject, either partially or completely, the link between Type A personality and coronary disease. Nevertheless, this research had a significant effect on the development of the health psychology field, in which psychologists look at how an individual's mental state affects physical health. History Type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type B Evaluation Of Uncertainty
In metrology, measurement uncertainty is the expression of the statistical dispersion of the values attributed to a measured quantity. All measurements are subject to uncertainty and a measurement result is complete only when it is accompanied by a statement of the associated uncertainty, such as the standard deviation. By international agreement, this uncertainty has a probabilistic basis and reflects incomplete knowledge of the quantity value. It is a non-negative parameter. The measurement uncertainty is often taken as the standard deviation of a state-of-knowledge probability distribution over the possible values that could be attributed to a measured quantity. Relative uncertainty is the measurement uncertainty relative to the magnitude of a particular single choice for the value for the measured quantity, when this choice is nonzero. This particular single choice is usually called the measured value, which may be optimal in some well-defined sense (e.g., a mean, median, or m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
