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Frozen-food Industry
Freezing food preserves it from the time it is prepared to the time it is eaten. Since early times, farmers, fishermen, and trappers have preserved grains and produce in unheated buildings during the winter season. Freezing food slows decomposition by turning residual moisture into ice, inhibiting the growth of most bacterial species. In the food commodity industry, there are two processes: mechanical and cryogenic (or flash freezing). The freezing kinetics is important to preserve the food quality and texture. Quicker freezing generates smaller ice crystals and maintains cellular structure. Cryogenic freezing is the quickest freezing technology available due to the ultra low liquid nitrogen temperature . Preserving food in domestic kitchens during modern times is achieved using household freezers. Accepted advice to householders was to freeze food on the day of purchase. An initiative by a supermarket group in 2012 (backed by the UK's Waste & Resources Action Programme) prom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frozen Berries (35379207760)
Frozen may refer to: * the result of freezing * a paralysis response in extreme cases of fear Films * ''Frozen'' (1997 film), a film by Wang Xiaoshuai * ''Frozen'' (2005 film), a film by Juliet McKoen * ''Frozen'' (2007 film), a film by Shivajee Chandrabhushan * ''Frozen'' (2010 American film), a thriller film by Adam Green * ''Frozen'' (2010 Hong Kong film), a film by Derek Kwok * ''Frozen'' (franchise), a Disney media franchise based on the 2013 film ** ''Frozen'' (2013 film), a Disney animated film inspired by Hans Christian Andersen's ''The Snow Queen'' **'' Frozen Fever'' (2015), a short sequel to the film ''Frozen'' (2013) ** ''Olaf's Frozen Adventure'' (2017), a featurette short sequel to the film ''Frozen'' (2013) ** '' Frozen II'' (2019), the sequel to the film ''Frozen'' (2013) * Frozen (advertisement), a 2014 political advertisement Music Albums * ''Frozen'' (album), by Sentenced, released in 1998 * ''Frozen'' (EP), an EP by Curve * ''Frozen'' (soundt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meat-packing Industry
The meat-packing industry (also spelled meatpacking industry or meat packing industry) handles the slaughtering, processing, packaging, and distribution of meat from animals such as cattle, pigs, sheep and other livestock. Poultry is generally not included. This greater part of the entire meat industry is primarily focused on producing meat for human consumption, but it also yields a variety of by-products including hides, dried blood, protein meals such as meat & bone meal, and, through the process of rendering, fats (such as tallow). In the United States and some other countries, the facility where the meat packing is done is called a ''slaughterhouse'', ''packinghouse'' or a ''meat-packing plant''; in New Zealand, where most of the products are exported, it is called a ''freezing works''. An abattoir is a place where animals are slaughtered for food. The meat-packing industry grew with the construction of the railroads and methods of refrigeration for meat preservation. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluidized Bed
A fluidized bed is a physical phenomenon that occurs when a solid particulate substance (usually present in a holding vessel) is under the right conditions so that it behaves like a fluid. The usual way to achieve a fluidize bed is to pump pressurized fluid into the particles. The resulting medium then has many properties and characteristics of normal fluids, such as the ability to free-flow under gravity, or to be pumped using fluid technologies. The resulting phenomenon is called fluidization. Fluidized beds are used for several purposes, such as fluidized bed reactors (types of chemical reactors), solids separation, fluid catalytic cracking, fluidized bed combustion, heat or mass transfer or interface modification, such as applying a coating onto solid items. This technique is also becoming more common in aquaculture for the production of shellfish in integrated multi-trophic aquaculture systems. Properties A fluidized bed consists of fluid-solid mixture that exhibits fluid-l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelletizing
Pelletizing is the process of compressing or molding a material into the shape of a pellet. A wide range of different materials are pelletized including chemicals, iron ore, animal compound feed, plastics, waste materials, and more. The process is considered an excellent option for the storage and transport of said materials. The technology is widely used in the powder metallurgy engineering and medicine industries. Pelletizing of iron ore Pelletizing iron ore is undertaken due to the excellent physical and metallurgical properties of iron ore pellets. Iron ore pellets are spheres of typically to be used as raw material for blast furnaces. They typically contain 64–72% Fe and various additional material adjusting the chemical composition and the metallurgic properties of the pellets. Typically limestone, dolomite and olivine is added and Bentonite is used as binder. The process of pelletizing combines mixing of the raw material, forming the pellet and a thermal treatm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conveyor Belt
A conveyor belt is the carrying medium of a belt conveyor system (often shortened to belt conveyor). A belt conveyor system is one of many types of conveyor systems. A belt conveyor system consists of two or more pulleys (sometimes referred to as drums), with a closed loop of carrying medium—the conveyor belt—that rotates about them. One or both of the pulleys are powered, moving the belt and the material on the belt forward. The powered pulley is called the drive pulley while the unpowered pulley is called the idler pulley. There are two main industrial classes of belt conveyors; Those in general material handling such as those moving boxes along inside a factory and bulk material handling such as those used to transport large volumes of resources and agricultural materials, such as grain, salt, coal, ore, sand, overburden and more. Overview Conveyors are durable and reliable components used in automated distribution and warehousing, as well as manufacturing and produ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heat Transfer
Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, Convection (heat transfer), thermal convection, thermal radiation, and transfer of energy by phase changes. Engineers also consider the transfer of mass of differing chemical species (mass transfer in the form of advection), either cold or hot, to achieve heat transfer. While these mechanisms have distinct characteristics, they often occur simultaneously in the same system. Heat conduction, also called diffusion, is the direct microscopic exchanges of kinetic energy of particles (such as molecules) or quasiparticles (such as lattice waves) through the boundary between two systems. When an object is at a different temperature from another body or its surroundings, heat flows so that the body and the surroundings reach the same temperature, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vapor-compression Refrigeration
Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles. It is also used in domestic and commercial refrigerators, large-scale warehouses for chilled or frozen storage of foods and meats, refrigerated trucks and railroad cars, and a host of other commercial and industrial services. Oil refineries, petrochemical and chemical processing plants, and natural gas processing plants are among the many types of industrial plants that often utilize large vapor-compression refrigeration systems. Cascade refrigeration systems may also be implemented using two compressors. Refrigeration may be defined as lowering the temperature of an enclosed space by removing heat from that space and transferring it elsewhere. A device that performs this function may also be called an air conditioner, refrige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquid Carbon Dioxide
Liquid carbon dioxide is the liquid state of carbon dioxide (), which cannot occur under atmospheric pressure. It can only exist at a pressure above , under (temperature of critical point) and above (temperature of triple point). Low-temperature carbon dioxide is commercially used in its solid form, commonly known as "dry ice". Solid sublimes at at Earth atmospheric pressure — that is, it transitions directly from solid to gas without an intermediate liquid stage. The uses and applications of liquid carbon dioxide include decaffeinating coffee, extracting virgin olive oil from olive paste, in fire extinguishers, and as a coolant. Properties Liquid carbon dioxide is a type of liquid which is formed from highly compressed and cooled gaseous carbon dioxide. It does not form under atmospheric conditions. It only exists when the pressure is above 5.1 atm and the temperature is under (temperature of critical point) and above (temperature of triple point). The chemical symbol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquid Nitrogen
Liquid nitrogen—LN2—is nitrogen in a liquid state at low temperature. Liquid nitrogen has a boiling point of about . It is produced industrially by fractional distillation of liquid air. It is a colorless, low viscosity liquid that is widely used as a coolant. Physical properties The diatomic character of the N2 molecule is retained after liquefaction. The weak van der Waals interaction between the N2 molecules results in little interatomic interaction, manifested in its very low boiling point. The temperature of liquid nitrogen can readily be reduced to its freezing point by placing it in a vacuum chamber pumped by a vacuum pump. Liquid nitrogen's efficiency as a coolant is limited by the fact that it boils immediately on contact with a warmer object, enveloping the object in an insulating layer of nitrogen gas bubbles. This effect, known as the Leidenfrost effect, occurs when any liquid comes in contact with a surface which is significantly hotter than its boiling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsukiji
Tsukiji (築地) is a district of Chūō, Tokyo, Japan. Literally meaning "reclaimed land", it lies near the Sumida River on land reclaimed from Tokyo Bay in the 18th century during the Edo period. The eponymous Tsukiji fish market opened in 1935 and closed in 2018 when its operations were moved to the new Toyosu Market. There are also districts named ''Tsukiji'' in Kobe and Amagasaki, cities in Hyōgo Prefecture, although neither is as well known as the district in Tokyo. History Tsukiji is built on reclaimed land out of what were once lowland marshes along the Sumida River delta. Throughout the Tokugawa period, earth from the shogunate's extensive moat and canal excavations was systematically used to fill in the marshes along the river, creating new commercial districts and waterfront housing. The land was then named Tsukiji (築地), meaning "constructed land" or "reclaimed land". The Great Fire of Meireki of 1657 destroyed over two-thirds of Edo's buildings, including Hong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eleanor Roosevelt
Anna Eleanor Roosevelt () (October 11, 1884November 7, 1962) was an American political figure, diplomat, and activist. She was the first lady of the United States from 1933 to 1945, during her husband President Franklin D. Roosevelt's four terms in office, making her the longest-serving first lady of the United States. Roosevelt served as United States Delegate to the United Nations General Assembly from 1945 to 1952, and in 1948 she was given a standing ovation by the assembly upon their adoption of the Universal Declaration. President Harry S. Truman later called her the "First Lady of the World" in tribute to her human rights achievements. Roosevelt was a member of the prominent American Roosevelt and Livingston families and a niece of President Theodore Roosevelt. She had an unhappy childhood, having suffered the deaths of both parents and one of her brothers at a young age. At 15, she attended Allenswood Boarding Academy in London and was deeply influenced by its hea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ísafjörður
Ísafjörður (pronounced , meaning ''ice fjord'', literally ''fjord of ices'') is a town in the northwest of Iceland. The oldest part of Ísafjörður with the town centre is located on a spit of sand, or ''eyri'', in Skutulsfjörður, a fjord which meets the waters of the larger fjord Ísafjarðardjúp. With a population of about 2,600, Ísafjörður is the largest settlement in the peninsula of Vestfirðir (Westfjords) and the administration centre of the Ísafjarðarbær municipality, which includes—besides Ísafjörður—the nearby villages of Hnífsdalur, Flateyri, Suðureyri, and Þingeyri. History According to the Landnámabók (the book of settlement), Skutulsfjörður was first settled by Helgi Magri Hrólfsson in the 9th century. In the 16th century, the town grew as it became a trading post for foreign merchants. Witch trials were common around the same time throughout the Westfjords, and many people were banished to the nearby peninsula of Hornstrandir, now a na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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