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Discrete Particle Method
A discrete element method (DEM), also called a distinct element method, is any of a family of numerical analysis, numerical methods for computing the motion and effect of a large number of small particles. Though DEM is very closely related to molecular dynamics, the method is generally distinguished by its inclusion of rotational Degrees of freedom (statistics), degrees-of-freedom as well as stateful contact, particle deformation and often complicated geometries (including polyhedra). With advances in computing power and numerical algorithms for nearest neighbor sorting, it has become possible to numerically simulate millions of particles on a single processor. Today DEM is becoming widely accepted as an effective method of addressing engineering problems in granular and discontinuous materials, especially in granular flows, powder mechanics, ice and rock mechanics. DEM has been extended into the Extended Discrete Element Method taking heat transfer, chemical reaction and coupling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Numerical Analysis
Numerical analysis is the study of algorithms that use numerical approximation (as opposed to symbolic computation, symbolic manipulations) for the problems of mathematical analysis (as distinguished from discrete mathematics). It is the study of numerical methods that attempt to find approximate solutions of problems rather than the exact ones. Numerical analysis finds application in all fields of engineering and the physical sciences, and in the 21st century also the life and social sciences like economics, medicine, business and even the arts. Current growth in computing power has enabled the use of more complex numerical analysis, providing detailed and realistic mathematical models in science and engineering. Examples of numerical analysis include: ordinary differential equations as found in celestial mechanics (predicting the motions of planets, stars and galaxies), numerical linear algebra in data analysis, and stochastic differential equations and Markov chains for simulati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homogenization (chemistry)
Homogenization or homogenisation is any of several processes used to make a mixture of two mutually non-soluble liquids the same throughout. This is achieved by turning one of the liquids into a state consisting of extremely small particles distributed uniformly throughout the other liquid. A typical example is the homogenization of milk, wherein the milk fat globules are reduced in size and dispersed uniformly through the rest of the milk. Definition Homogenization (from ''homogeneous''; Greek, : '','' + '','' ) is the process of converting two immiscible liquids (i.e. liquids that are not soluble, in all proportions, one in another) into an emulsion, a mixture of two or more liquids that are generally immiscible. Sometimes two types of homogenization are distinguished: primary homogenization, when the emulsion is created directly from separate liquids; and secondary homogenization, when the emulsion is created by the reduction in size of droplets in an existing emulsion. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact Plasticity
Contact may refer to: Interaction Physical interaction * Contact (geology), a common geological feature * Contact lens or contact, a lens placed on the eye * Contact sport, a sport in which players make contact with other players or objects * Contact juggling * Contact mechanics, the study of solid objects that deform when touching each other * Contact process (mathematics), a model of an interacting particle system * Electrical contacts * ''Sparśa'', a concept in Buddhism that in Sanskrit/Indian language is translated as "contact", "touching", "sensation", "sense impression", etc. Social interaction * Contact (amateur radio) * Contact (law), a concept related to visitation rights * Contact (social), a person who can offer help in achieving goals * Contact Conference, an annual scientific conference * Extraterrestrial contact, see Search for extraterrestrial intelligence * First contact (anthropology), an initial meeting of two cultures * Language contact, the interaction of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friction
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. Types of friction include dry, fluid, lubricated, skin, and internal -- an incomplete list. The study of the processes involved is called tribology, and has a history of more than 2000 years. Friction can have dramatic consequences, as illustrated by the use of friction created by rubbing pieces of wood together to start a fire. Another important consequence of many types of friction can be wear, which may lead to performance degradation or damage to components. It is known that frictional energy losses account for about 20% of the total energy expenditure of the world. As briefly discussed later, there are many different contributors to the retarding force in friction, ranging from asperity deformation to the generation of charges and changes in local structure. When two bodies in contact move relative to each other, due to these variou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velocity
Velocity is a measurement of speed in a certain direction of motion. It is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of physical objects. Velocity is a vector (geometry), vector Physical quantity, quantity, meaning that both magnitude and direction are needed to define it. The Scalar (physics), scalar absolute value (Magnitude (mathematics), magnitude) of velocity is called , being a coherent derived unit whose quantity is measured in the International System of Units, SI (metric system) as metres per second (m/s or m⋅s−1). For example, "5 metres per second" is a scalar, whereas "5 metres per second east" is a vector. If there is a change in speed, direction or both, then the object is said to be undergoing an ''acceleration''. Definition Average velocity The average velocity of an object over a period of time is its Displacement (geometry), change in position, \Delta s, divided by the duration of the period, \Delt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Powder Metallurgy
Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders. PM processes are sometimes used to reduce or eliminate the need for subtractive manufacturing, subtractive processes in manufacturing, lowering material losses and reducing the cost of the final product. This occurs especially often with small metal parts, like gears for small machines. Some porous products, allowing liquid or gas to permeate them, are produced in this way. They are also used when melting a material is impractical, due to it having a high melting point, or an alloy of two mutually insoluble materials, such as a mixture of copper and graphite. In this way, powder metallurgy can be used to make unique materials impossible to get from melting or forming in other ways. A very important product of this type is tungsten carbide. Tungsten carbide is used to cut and form other metals and is made from tungsten carbide particles bonded with cobalt. Tu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cundall DEM
Cundall may refer to: * Cundall, North Yorkshire, a hamlet in England *Cundall Johnston and Partners Cundall is a multi-disciplinary engineering consultancy. Originally based in Newcastle and Edinburgh, the company had spread its operations across five continents. The firm was founded in 1976 on the basis that it would offer a more client-focus ..., a multi-disciplinary engineering consultancy * Peter Cundall (1927–2021), horticulturalist and television personality in Australia * James Cundall (born 1959), British theatrical producer * Joseph Cundall (1818–1895), Victorian English writer, under the pseudonym of "Stephen Percy" See also * Cundell {{DEFAULTSORT:Cundall(Disambiguation) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antonio Bobet
Antonio is a masculine given name of Etruscan origin deriving from the root name Antonius. It is a common name among Romance language–speaking populations as well as the Balkans and Lusophone Africa. It has been among the top 400 most popular male baby names in the United States since the late 19th century and has been among the top 200 since the mid 20th century. In the English language, it is translated as Anthony, and has some female derivatives: Antonia, Antónia, Antonieta, Antonietta, and Antonella'. It also has some male derivatives, such as Anthonio, Antón, Antò, Antonis, Antoñito, Antonino, Antonello, Tonio, Tono, Toño, Toñín, Tonino, Nantonio, Ninni, Totò, Tó, Tonini, Tony, Toni, Toninho, Toñito, and Tõnis. The Portuguese equivalent is António (Portuguese orthography) or Antônio (Brazilian Portuguese). In old Portuguese the form Antão was also used, not just to differentiate between older and younger but also between more and less important. In Gali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nenad Bicanic
Nenad (; Cyrillic script: Ненад) is a masculine given name of Slavic origin. It is common in countries that speak South Slavic languages, especially in Bosnia and Herzegovina, Croatia, Serbia, and Montenegro. The name is derived from the word ''nenadan'', which means "unexpected". This name is often given to the younger of twins, in this case usually paired with the name Predrag, from the Serbian folk song "Predrag i Nenad". at Notable people with the name A-J * |
Roger Owen (mathematician)
Roger Owen may refer to: *Roger Owen (historian) Edward Roger John Owen (27 May 1935 – 23 December 2018) was a British historian who wrote several classic works on the history of the modern Middle East. His research interests included the economic, social and political history of the Mid ... (1935–2018), British historian * Roger Owen (rugby) (1953–2021), Welsh rugby union, and rugby league footballer of the 1970s and 1980s * Roger Owen (MP) (1573–1617), English Member of Parliament * Roger Carmichael Robert Owen (1866–1941), British military officer * Roger Owen (lawyer) (died 1280), Irish lawyer and Crown official {{hndis, Owen, Roger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ante Munjiza
{{disambiguation ...
Ante or Antes may refer to: * Ante (cards), an initial stake paid in a card game * Ante (poker), a forced bet in the game of poker * Ante (name), Croatian form of the given name Anthony * The Latin word ''ante'', meaning "before", which is used as a prefix in many Latin phrases. e.g. ''antebellum'', meaning "before a war" * Sivry-Ante, a municipality in the Marne department of France with two villages: Ante and Sivry-Ante * Antes (people) See also * Antes (other) *Anth (other) Anth may refer to the following: *'' Anth'', short for ''Anth: A Dream for a Better Tomorrow'', 1994 Indian action film * ANTH domain, protein domain * Anth (name) See also * ANH (other) * Ankh (other) * Ant (other) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
