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Carbone Lorraine
Mersen, previously called Carbone Lorraine, is a French international company in electrical power and advanced materials. In 1937, the company was admitted to Bourse de Paris. History Mersen, previously named Carbone Lorraine (until May 20, 2010), was created in 1891 by the Compagnie lorraine de charbons pour l’électricité in Pagny-sur-Moselle (Lorraine), where the Group still owns a plant. In 1937, it merged with Le Carbone, a company based in Gennevilliers, (Hauts-de-Seine) where the Group kept and operated the original plant. La Compagnie lorraine de charbons pour l’électricité was founded in Meurthe-et-Moselle in1891. It first manufactured motors, dynamos and lighting lamps before producing « carbons » for electric lighting. At the same time, Le Carbone, founded in 1892 in Paris, produced brushes for electric motors. In 1893, Charles Street, an engineer at Le Carbone, discovered and patented the process of carbon graphitization which allowed the manufacture of synt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Société Anonyme
The abbreviation S.A. or SA designates a type of limited company in certain countries, most of which have a Romance language as their official language and employ civil law. Originally, shareholders could be literally anonymous and collect dividends by surrendering coupons attached to their share certificates. Dividends were therefore paid to whoever held the certificate. Share certificates could be transferred privately, and therefore the management of the company would not necessarily know who owned its shares. As with bearer bonds, anonymous unregistered share ownership and dividend collection enabled money laundering, tax evasion, and concealed business transactions in general, so governments passed laws to audit the practice. Nowadays, shareholders of S.A.s are not anonymous, though shares can still be held by a holding company in order to obscure the beneficiary. In different countries S.A. can be an abbreviation of: * in Galician and European Portuguese (used in Portu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called the capital of the world. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the region France's primate city. The Paris Region had a GDP of €739 billion ($743 billion) in 2019, which is the highest in Europe. According to the Economist Intelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Site Mersen De Bommasandra, Inde
Site most often refers to: * Archaeological site * Campsite, a place used for overnight stay in an outdoor area * Construction site * Location, a point or an area on the Earth's surface or elsewhere * Website, a set of related web pages, typically with a common domain name It may also refer to: * Site, a National Register of Historic Places property type * SITE (originally known as ''Sculpture in the Environment''), an American architecture and design firm * Site (mathematics), a category C together with a Grothendieck topology on C * '' The Site'', a 1990s TV series that aired on MSNBC * SITE Intelligence Group, a for-profit organization tracking jihadist and white supremacist organizations * SITE Institute, a terrorism-tracking organization, precursor to the SITE Intelligence Group * Sindh Industrial and Trading Estate, a company in Sindh, Pakistan * SITE Centers, American commercial real estate company * SITE Town, a densely populated town in Karachi, Pakistan * S.I.T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Conversion
In all fields of electrical engineering, power conversion is the process of converting electric energy from one form to another. A power converter is an electrical or electro-mechanical device for converting electrical energy. A power converter can convert alternating current (AC) into direct current (DC) and vice versa; change the voltage or frequency of the current or do some combination of these. The power converter can be as simple as a transformer or it can be a far more complex system, such as resonant converter. The term can also refer to a class of electrical machinery that is used to convert one frequency of alternating current into another. Power conversion systems often incorporate redundancy and voltage regulation. Power converters are classified based on the type of power conversion they do. One way of classifying power conversion systems is according to whether the input and output are alternating current or direct current. Finally, the task of all power converter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corrosion
Corrosion is a natural process that converts a refined metal into a more chemically stable oxide. It is the gradual deterioration of materials (usually a metal) by chemical or electrochemical reaction with their environment. Corrosion engineering is the field dedicated to controlling and preventing corrosion. In the most common use of the word, this means electrochemical oxidation of metal in reaction with an oxidant such as oxygen, hydrogen or hydroxide. Rusting, the formation of iron oxides, is a well-known example of electrochemical corrosion. This type of damage typically produces oxide(s) or salt(s) of the original metal and results in a distinctive orange colouration. Corrosion can also occur in materials other than metals, such as ceramics or polymers, although in this context, the term "degradation" is more common. Corrosion degrades the useful properties of materials and structures including strength, appearance and permeability to liquids and gases. Many structural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railways
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prepared flat surface, rail vehicles (rolling stock) are directionally guided by the tracks on which they run. Tracks usually consist of steel rails, installed on sleepers (ties) set in ballast, on which the rolling stock, usually fitted with metal wheels, moves. Other variations are also possible, such as "slab track", in which the rails are fastened to a concrete foundation resting on a prepared subsurface. Rolling stock in a rail transport system generally encounters lower frictional resistance than rubber-tyred road vehicles, so passenger and freight cars (carriages and wagons) can be coupled into longer trains. The operation is carried out by a railway company, providing transport between train stations or freight customer facil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Vehicle
An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes charged by solar panels, or by converting fuel to electricity using fuel cells or a generator). EVs include, but are not limited to, road and rail vehicles, surface and underwater vessels, electric aircraft and electric spacecraft. For road vehicles, together with other emerging automotive technologies such as autonomous driving, connected vehicles and shared mobility, EVs form a future mobility vision called Connected, Autonomous, Shared and Electric (CASE) Mobility. EVs first came into existence in the late 19th century, when electricity was among the preferred methods for motor vehicle propulsion, providing a level of comfort and ease of operation that could not be achieved by the gasoline cars of the time. Internal combustion engin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiconductor
A semiconductor is a material which has an electrical resistivity and conductivity, electrical conductivity value falling between that of a electrical conductor, conductor, such as copper, and an insulator (electricity), insulator, such as glass. Its electrical resistivity and conductivity, resistivity falls as its temperature rises; metals behave in the opposite way. Its conducting properties may be altered in useful ways by introducing impurities ("doping (semiconductor), doping") into the crystal structure. When two differently doped regions exist in the same crystal, a semiconductor junction is created. The behavior of charge carriers, which include electrons, ions, and electron holes, at these junctions is the basis of diodes, transistors, and most modern electronics. Some examples of semiconductors are silicon, germanium, gallium arsenide, and elements near the so-called "metalloid staircase" on the periodic table. After silicon, gallium arsenide is the second-most common s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renewable Energies
Renewable energy is energy that is collected from renewable resources that are naturally replenished on a Orders of magnitude (time), human timescale. It includes sources such as Solar power, sunlight, wind power, wind, the movement of Hydropower, water, and geothermal energy, geothermal heat. Although most renewable energy sources are sustainable energy, sustainable, some are not. For example, some biomass sources are considered unsustainable at current rates of exploitation of natural resources, exploitation. Renewable energy often provides energy for electricity generation to a grid, space heating, air and water heating/air conditioning, cooling, and stand-alone power systems. Renewable energy technology projects are typically large-scale, but they are also suited to rural and remote areas and Renewable energy in developing countries, developing countries, where energy is often crucial in Human development (humanity), human development. Renewable energy is often deployed toge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Vehicle
An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes charged by solar panels, or by converting fuel to electricity using fuel cells or a generator). EVs include, but are not limited to, road and rail vehicles, surface and underwater vessels, electric aircraft and electric spacecraft. For road vehicles, together with other emerging automotive technologies such as autonomous driving, connected vehicles and shared mobility, EVs form a future mobility vision called Connected, Autonomous, Shared and Electric (CASE) Mobility. EVs first came into existence in the late 19th century, when electricity was among the preferred methods for motor vehicle propulsion, providing a level of comfort and ease of operation that could not be achieved by the gasoline cars of the time. Internal combustion engin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicon Carbide
Silicon carbide (SiC), also known as carborundum (), is a hard chemical compound containing silicon and carbon. A semiconductor, it occurs in nature as the extremely rare mineral moissanite, but has been mass-produced as a powder and crystal since 1893 for use as an abrasive. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics that are widely used in applications requiring high endurance, such as car brakes, car clutches and ceramic plates in bulletproof vests. Large single crystals of silicon carbide can be grown by the Lely method and they can be cut into gems known as synthetic moissanite. Electronic applications of silicon carbide such as light-emitting diodes (LEDs) and Cat's whisker detector, detectors in early radios were first demonstrated around 1907. SiC is used in semiconductor electronics devices that operate at high temperatures or high voltages, or both. Natural occurrence Naturally occurring moissanite is found in only minut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soitec
Soitec is an international company, based in France, that manufactures high performance substrates used in the manufacture of semiconductors. Soitec's semiconductor materials are used to manufacture chips which equip smartphones, tablets, computers, IT servers, and data centres. Soitec's products are also found in electronic components used in cars, connected objects (Internet of Things), as well as industrial and medical equipment. Soitec's flagship product is silicon on insulator (SOI). Materials produced by Soitec come in the form of substrates (also called "wafers"). These are produced as ultra-thin disks that are 200 to 300 mm in diameter and are less than 1 mm thick. These wafers are then etched and cut to be used for microchips in electronics. History Soitec was founded in 1992 near Grenoble in France by two researchers from CEA Leti, an institute for micro- and nanotechnologies research created by the French Commission for Atomic Energy and Alternative E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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