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Gustaf Dalén
Nils Gustaf Dalén (; 30 November 1869 – 9 December 1937) was a Swedish Nobel Laureate and industrialist, engineer, inventor and long-term CEO of the AGA company and inventor of the AGA cooker and the Dalén light. In 1912 he was awarded the Nobel Prize in Physics for his "invention of automatic regulators for use in conjunction with gas accumulators for illuminating lighthouses and buoys". Early years Dalén was born in Stenstorp, a small village in Falköping Municipality, Västra Götaland County. He managed the family farm, which he expanded to include a market garden, a seed merchants and a dairy. In 1892 he invented a milk-fat tester to check milk quality of the milk delivered and went to Stockholm to show his new invention for Gustaf de Laval. de Laval was impressed by the self-taught Dalén and the invention and encouraged him to get a basic technical education. He was admitted to the Chalmers University of Technology where he earned his Master's degree and a Doc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stenstorp
Stenstorp is a locality situated in Falköping Municipality, Västra Götaland County, Sweden. It had 1,668 inhabitants in 2010. Railways The Western Main Line ( sv, Västra stambanan) runs through Stenstorp and regional passenger trains from Gothenburg and Jönköping stop there. The travel time to the two closest cities, Falköping in the south and Skövde to the north, is about 10 minutes each. Between the 1870s and the 1960s, Stenstorp was a railway junction, as two 891 mm narrow gauge railways to Lidköping (westward) and Hjo Hjo () is a Urban areas in Sweden, locality and the seat of Hjo Municipality, Västra Götaland County, Sweden. It had 6,094 inhabitants in 2010. The town is located on the west coast of Vättern. Etymology The place is named after Hjoån 'Hjo r ... (eastward) met there and connected to the state-owned Western Main Line. References {{Authority control Populated places in Västra Götaland County Populated places in Falköping Municipa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falköping Municipality
Falköping Municipality (''Falköpings kommun'') is a municipality in Västra Götaland County in western Sweden. Its seat is located in the town of Falköping. The present municipality consists of more than 50 original local government units, joined together in two structural reforms carried out in 1952, when the number was reduced to eight, and during the period 1971–1974. In 1971 the former ''Town of Falköping'' was made a unitary municipality and three years later amalgamated with the surrounding municipalities. Localities The population centres in the municipality include: * Åsarp * Åsle * Falköping (seat) * Floby * Gudhem * Gökhem * Kinnarp * Kättilstorp * Luttra * Odensberg * Stenstorp * Torbjörntorp * Vartofta Vartofta is a locality situated in Falköping Municipality, Västra Götaland County, Sweden. It had 540 inhabitants in 2010. ''Vartofta Hundred'', or ''Vartofta härad'', was a hundred divided between Småland and Västergötland Và ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Substrate (materials Science)
Substrate is a term used in materials science and engineering to describe the base material on which processing is conducted. This surface could be used to produce new film or layers of material such as deposited coatings. It could be the base to which paint, adhesives, or adhesive tape is bonded. A typical substrate might be rigid such as metal, concrete, or glass, onto which a coating might be deposited. Flexible substrates are also used. With all coating processes, the condition of the surface of the substrate can strongly affect the bond of subsequent layers. This can include cleanliness, smoothness, surface energy, moisture, etc. Some substrates are anisotropic with surface properties being different depending on the direction: examples include wood and paper products. Coatings Coating can be by a variety of processes: * Adhesives and Adhesive tapes * Coating and printing processes * Chemical vapor deposition and physical vapor deposition * Conversion coating :* A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agamassan
Agamassan is a porous substrate used to safely absorb acetylene and thus allow the transport, storage and commercial use of the otherwise unstable gas. It was developed and patented by the Swedish Nobel Laureate and industrialist Gustaf Dalén. Dalén was prominent in developing applications for acetylene. Acetylene can readily explode when in liquid or solid form or while being pressurized, if it is pure. Dalén himself was blinded in an acetylene explosion. In 1896, French chemists Georges Claude and Albert Hess discovered that large quantities of acetylene could be dissolved in acetone and rendered nonexplosive. As the liquid was reduced by consumption or cooling, explosive acetylene gas would collect in the space above the liquid's surface. The solution was to compress acetylene in a porous medium. Before Dalén's work, numerous attempts were made to find a mass sufficiently elastic to withstand shock without crumbling and producing cavities filled with explosive acetylene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocarbon
In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides. Hydrocarbons are generally colourless and hydrophobic, and their odors are usually weak or exemplified by the odors of gasoline and lighter fluid. They occur in a diverse range of molecular structures and phases: they can be gases (such as methane and propane), liquids (such as hexane and benzene), low melting solids (such as paraffin wax and naphthalene) or polymers (such as polyethylene and polystyrene). In the fossil fuel industries, ''hydrocarbon'' refers to the naturally occurring petroleum, natural gas and coal, and to their hydrocarbon derivatives and purified forms. Combustion of hydrocarbons is the main source of the world's energy. Petroleum is the dominant raw-material source for organic commodity chemicals such as solvents and polymers. Most anthropogenic (human-generated) emissions of greenhouse gases are carbon di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethyne
Acetylene (systematic name: ethyne) is the chemical compound with the formula and structure . It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities such as divinyl sulfide and phosphine.Compressed Gas Association (1995Material Safety and Data Sheet – Acetylene As an alkyne, acetylene is unsaturated because its two carbon atoms are bonded together in a triple bond. The carbon–carbon triple bond places all four atoms in the same straight line, with CCH bond angles of 180°. Discovery Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet of hydrogen". It was an accidental discovery while attempting to isolate potassium metal. By heating potassium carbonate with carbon at very high temperatures, he produced a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUPAC
The International Union of Pure and Applied Chemistry (IUPAC ) is an international federation of National Adhering Organizations working for the advancement of the chemical sciences, especially by developing nomenclature and terminology. It is a member of the International Science Council (ISC). IUPAC is registered in Zürich, Switzerland, and the administrative office, known as the "IUPAC Secretariat", is in Research Triangle Park, North Carolina, United States. This administrative office is headed by IUPAC's executive director, currently Lynn Soby. IUPAC was established in 1919 as the successor of the International Congress of Applied Chemistry for the advancement of chemistry. Its members, the National Adhering Organizations, can be national chemistry societies, national academies of sciences, or other bodies representing chemists. There are fifty-four National Adhering Organizations and three Associate National Adhering Organizations. IUPAC's Inter-divisional Committee on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acetylene
Acetylene (systematic name: ethyne) is the chemical compound with the formula and structure . It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities such as divinyl sulfide and phosphine.Compressed Gas Association (1995Material Safety and Data Sheet – Acetylene As an alkyne, acetylene is unsaturated because its two carbon atoms are bonded together in a triple bond. The carbon–carbon triple bond places all four atoms in the same straight line, with CCH bond angles of 180°. Discovery Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet of hydrogen". It was an accidental discovery while attempting to isolate potassium metal. By heating potassium carbonate with carbon at very high temperatures, he produced a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stockholm Sweden Blockhusudden-lighthouse-01
Stockholm () is the capital and most populous city of Sweden as well as the largest urban area in the Nordic countries. Approximately 1 million people live in the municipality, with 1.6 million in the urban area, and 2.4 million in the metropolitan area. The city stretches across fourteen islands where Lake Mälaren flows into the Baltic Sea. Outside the city to the east, and along the coast, is the island chain of the Stockholm archipelago. The area has been settled since the Stone Age, in the 6th millennium BC, and was founded as a city in 1252 by Swedish statesman Birger Jarl. The city serves as the county seat of Stockholm County. Stockholm is the cultural, media, political, and economic centre of Sweden. The Stockholm region alone accounts for over a third of the country's GDP, and is among the top 10 regions in Europe by GDP per capita. Considered a global city, it is the largest in Scandinavia and the main centre for corporate headquarters in the Nordic re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lidingö Municipality
Lidingö Municipality (''Lidingö kommun'' semi-officially named as ''Lidingö stad'') is a municipality east of Stockholm in Stockholm County in east central Sweden. Its seat is located on the island of Lidingö. The municipality is a part of Metropolitan Stockholm. It is chiefly located on the island Lidingö, but also incorporates a few smaller islands in the surroundings, most notably the Fjäderholmarna islands within the Stockholm archipelago. Being an island municipality it has not been amalgamated with any other entities. The small island of Tranholmen has, however, been transferred to Danderyd Municipality. The rural municipality was made a market town (''köping'') in 1910, a city in 1926 and a unitary municipality in 1971. The municipality always refers to itself as ''Lidingö stad'' ("''the City of Lidingö''"). This was a decision taken by the municipal assembly (kommunfullmäktige) in 1992. Geography The island Lidingö is connected to the city of Stockholm by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doctorate
A doctorate (from Latin ''docere'', "to teach"), doctor's degree (from Latin ''doctor'', "teacher"), or doctoral degree is an academic degree awarded by universities and some other educational institutions, derived from the ancient formalism ''licentia docendi'' ("licence to teach"). In most countries, a research degree qualifies the holder to teach at university level in the degree's field or work in a specific profession. There are a number of doctoral degrees; the most common is the Doctor of Philosophy (PhD), awarded in many different fields, ranging from the humanities to scientific disciplines. In the United States and some other countries, there are also some types of technical or professional degrees that include "doctor" in their name and are classified as a doctorate in some of those countries. Professional doctorates historically came about to meet the needs of practitioners in a variety of disciplines. Many universities also award honorary doctorates to individuals d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master's Degree
A master's degree (from Latin ) is an academic degree awarded by universities or colleges upon completion of a course of study demonstrating mastery or a high-order overview of a specific field of study or area of professional practice. A master's degree normally requires previous study at the bachelor's degree, bachelor's level, either as a separate degree or as part of an integrated course. Within the area studied, master's graduates are expected to possess advanced knowledge of a specialized body of and applied topics; high order skills in |
