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Skein
Skein may refer to: * A flock of geese or ducks in flight * A wound ball of yarn with a centre pull strand; see Hank * A metal piece fitted over the end of a wagon axle, to which the wheel is mounted * Skein (unit), a unit of length used by weavers and tailors * Skein dubh, a Scottish knife * Skein (fish), the egg sack of the fish eggs and/or the eggs themselves * Skein module, a mathematical concept * Skein relation, a mathematical concept often used to give a simple definition of knot polynomials * Skein (comics), a fictional supervillain in the Marvel Comics universe * Skein (hash function), a candidate hash function to the NIST hash function competition from Bruce Schneier et al. See also * '' The Tangled Skein'', a novel by Baroness Orczy * '' With a Tangled Skein'', a novel by Piers Anthony, book three of ''Incarnations of Immortality'' * Skien Skien () is a city and municipality in Vestfold og Telemark county in Norway. In modern times it is regarded as part of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skein (hash Function)
Skein is a cryptographic hash function and one of five finalists in the NIST hash function competition. Entered as a candidate to become the SHA-3 standard, the successor of SHA-1 and SHA-2, it ultimately lost to NIST hash candidate Keccak. The name Skein refers to how the Skein function intertwines the input, similar to a skein of yarn. History Skein was created by Bruce Schneier, Niels Ferguson, Stefan Lucks, Doug Whiting, Mihir Bellare, Tadayoshi Kohno, Jon Callas and Jesse Walker. Skein is based on the Threefish tweakable block cipher compressed using Unique Block Iteration (UBI) chaining mode, a variant of the Matyas–Meyer–Oseas hash mode, while leveraging an optional low-overhead argument-system for flexibility. Skein's algorithm and a reference implementation was given to public domain. Functionality Skein supports internal state sizes of 256, 512 and 1024 bits, and arbitrary output sizes. The authors claim 6.1 cycles per byte for any output size on an Inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skein (comics)
Skein (real name Sybil Dvorak, also known as Gypsy Moth and Sybarite) is a fictional character, a mutant supervillain appearing in American comic books published by Marvel Comics. Publication history The character first appeared in ''Spider-Woman'' vol 1. #10 as Gypsy Moth, and was created by Mark Gruenwald and Carmine Infantino. Fictional character biography Sybil Dvorak was born in Focșani, Romania, in the shadow of the Carpathians. She was raised by Romani and spent much of her time alone nurturing her gardens and focusing on her mutant powers - the ability to telekinetically manipulate and control materials with her mind. She loved how the sensation of fiber, such as soft weaves and flowers, felt to her mental touch; hard objects felt abrasive to her.''Spider-Woman'' #48 Wandering onto the set of a remake of the movie '' Dracula'', which was being filmed on location in Romania, she met the star, Jason Reed. He romanced her and convinced her to come with him back to his ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skein (fish)
Skein may refer to: * A flock of geese or ducks in flight * A wound ball of yarn with a centre pull strand; see Hank * A metal piece fitted over the end of a wagon axle, to which the wheel is mounted * Skein (unit), a unit of length used by weavers and tailors * Skein dubh, a Scottish knife * Skein (fish), the egg sack of the fish eggs and/or the eggs themselves * Skein module, a mathematical concept * Skein relation, a mathematical concept often used to give a simple definition of knot polynomials * Skein (comics), a fictional supervillain in the Marvel Comics universe * Skein (hash function), a candidate hash function to the NIST hash function competition from Bruce Schneier et al. See also * '' The Tangled Skein'', a novel by Baroness Orczy * '' With a Tangled Skein'', a novel by Piers Anthony, book three of ''Incarnations of Immortality'' * Skien Skien () is a city and municipality in Vestfold og Telemark county in Norway. In modern times it is regarded as part of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
With A Tangled Skein
''With a Tangled Skein'' is a fantasy novel by Piers Anthony. It is the third of eight books in the ''Incarnations of Immortality'' series. In it, Niobe agrees to become one of the three aspects of the incarnation of Fate, in an attempt to thwart the plans of Satan. Plot At around the time of World War I, a 21-year-old Irish woman named Niobe has a marriage arranged by her parents. Her husband-to-be is a 16-year-old boy named Cedric Kaftan. She considers him too immature, but can find no way out of the marriage. Although Niobe at first hates being married to Cedric, his good nature, kindheartedness, and desire to make her happy and keep safe win her over, and she falls in love with him. Cedric shows himself to be an intellectual prodigy. With some prodding and nurturing from his wife, Cedric accepts a scholarship to attend college and hone his magical abilities. He matures and finds his niche in magic and wetland studies, and he and Niobe have a child, Cedric Jr. A few years l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Tangled Skein
''The Tangled Skein'' was Baroness Orczy's second novel. First published under the title ''In Mary's Reign'' in 1901, it was re-released under the title ''The Tangled Skein'' in 1907, following the success of ''The Scarlet Pimpernel''. The book is a period romance and is dedicated to "my little son Jack" (who was born in 1899). Contents *Part I - Mirrab the Witch, *Part II - The Lady Ursula, *Part III - A Game of Chess, *Part IV - His Grace of Wessex. Plot summary In ''The Tangled Skein'', Queen Mary is characterized as a loving woman with a strong sense of justice. The ''tangled skein'' arises from Mary's love for the fictional character Robert d’Esclade, fifth Duke of Wessex la, Regnum Occidentalium Saxonum , conventional_long_name = Kingdom of the West Saxons , common_name = Wessex , image_map = Southern British Isles 9th century.svg , map_caption = S ..., said in this book to be the people's choice as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skein Relation
Skein relations are a mathematical tool used to study knots. A central question in the mathematical theory of knots is whether two knot diagrams represent the same knot. One way to answer the question is using knot polynomials, which are invariants of the knot. If two diagrams have different polynomials, they represent different knots. In general, the converse does not hold. Skein relations are often used to give a simple definition of knot polynomials. A skein relation gives a linear relation between the values of a knot polynomial on a collection of three links which differ from each other only in a small region. For some knot polynomials, such as the Conway, Alexander, and Jones polynomials, the relevant skein relations are sufficient to calculate the polynomial recursively. Definition A skein relationship requires three link diagrams that are identical except at one crossing. The three diagrams must exhibit the three possibilities that could occur for the two line segments ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skein (unit)
A skein is a unit of length which has been used in the UK. As a measuring unit of cotton yarn or of silk Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the ..., a skein equates to a "rap" or a "lea". One skein is equivalent to . References Units of length Customary units of measurement {{measurement-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skein Module
In mathematics, the Alexander polynomial is a knot invariant which assigns a polynomial with integer coefficients to each knot type. James Waddell Alexander II discovered this, the first knot polynomial, in 1923. In 1969, John Conway showed a version of this polynomial, now called the Alexander–Conway polynomial, could be computed using a skein relation, although its significance was not realized until the discovery of the Jones polynomial in 1984. Soon after Conway's reworking of the Alexander polynomial, it was realized that a similar skein relation was exhibited in Alexander's paper on his polynomial. Definition Let ''K'' be a knot in the 3-sphere. Let ''X'' be the infinite cyclic cover of the knot complement of ''K''. This covering can be obtained by cutting the knot complement along a Seifert surface of ''K'' and gluing together infinitely many copies of the resulting manifold with boundary in a cyclic manner. There is a covering transformation ''t'' acting on ''X'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geese
A goose (plural, : geese) is a bird of any of several waterfowl species in the family (biology), family Anatidae. This group comprises the genera ''Anser (bird), Anser'' (the grey geese and white geese) and ''Branta'' (the black geese). Some other birds, mostly related to the shelducks, have "goose" as part of their names. More distantly related members of the family Anatidae are swans, most of which are larger than true geese, and ducks, which are smaller. The term "goose" may refer to either a male or female bird, but when paired with "gander", refers specifically to a female one (the latter referring to a male). Young birds before fledging are called goslings. The List of collective nouns, collective noun for a group of geese on the ground is a gaggle; when in flight, they are called a skein, a team, or a wedge; when flying close together, they are called a plump. Etymology The word "goose" is a direct descendant of,''*ghans-''. In Germanic languages, the root gave Old E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducks
Duck is the common name for numerous species of waterfowl in the family Anatidae. Ducks are generally smaller and shorter-necked than swans and geese, which are members of the same family. Divided among several subfamilies, they are a form taxon; they do not represent a monophyletic group (the group of all descendants of a single common ancestral species), since swans and geese are not considered ducks. Ducks are mostly aquatic birds, and may be found in both fresh water and sea water. Ducks are sometimes confused with several types of unrelated water birds with similar forms, such as loons or divers, grebes, gallinules and coots. Etymology The word ''duck'' comes from Old English 'diver', a derivative of the verb 'to duck, bend down low as if to get under something, or dive', because of the way many species in the dabbling duck group feed by upending; compare with Dutch and German 'to dive'. This word replaced Old English / 'duck', possibly to avoid confusion with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hank (textile)
In the textile industry, a hank is a coiled or wrapped unit of yarn or twine, as opposed to other materials like thread or rope, as well as other forms such as ball, cone, bobbin (cylinder-like structure) spool, etc. This is often the best form for use with hand looms, compared to the cone form needed for power looms. Hanks come in varying lengths depending on the type of material and the manufacturer. For instance, a hank of linen is often , and a hank of cotton or silk is . While hanks may differ by manufacturer and by product, a skein is usually considered 1/6th of a hank (either by weight or by length). One source identifies a skein of stranded cotton as being , of tapestry wool as being , and crewel wool as being . In yarns for handcrafts such as knitting or crochet, hanks are not a fixed length but are sold in units by weight, most commonly 50 grams. Depending on the thickness of the strand as well as the inherent density of the material, hanks can range widely in yardage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axle
An axle or axletree is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In the former case, bearings or bushings are provided at the mounting points where the axle is supported. In the latter case, a bearing or bushing sits inside a central hole in the wheel to allow the wheel or gear to rotate around the axle. Sometimes, especially on bicycles, the latter type axle is referred to as a ''spindle''. Terminology On cars and trucks, several senses of the word ''axle'' occur in casual usage, referring to the shaft itself, its housing, or simply any transverse pair of wheels. Strictly speaking, a shaft which rotates with the wheel, being either bolted or splined in fixed relation to it, is called an ''axle'' or ''axle shaft''. However, in looser usage, an entire assembly including the surrounding axle housing (typically a casting) is als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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