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Asbestos Abatement
In construction, asbestos abatement is a set of procedures designed to control the release of asbestos fibers from asbestos-containing materials. Asbestos abatement is utilized during general construction in areas containing asbestos materials, particularly when those materials are being removed, encapsulated, or repaired. Abatement is needed in order to protect construction workers and members of the general public from the many negative health impacts of asbestos. Many residential and commercial buildings contain asbestos, used in spray-applied flame retardant, thermal system insulation, and in a variety of other materials. Asbestos can be flocked above false ceilings, inside technical ducts, and in many other small spaces where firefighters would have difficulty gaining access. Although asbestos is primarily associated with older buildings in many parts of the world, as asbestos bans have been in place in various countries since 1972, 2 million tons of asbestos were still c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duct Tape
Duct tape (also called duck tape, from the cotton duck cloth it was originally made of) is cloth- or scrim-backed pressure-sensitive tape, often coated with polyethylene. There are a variety of constructions using different backings and adhesives, and the term 'duct tape' has been genericized to refer to different cloth tapes with differing purposes. A variation is heat-resistant foil tape useful for sealing heating and cooling ducts, produced because the adhesive on standard duct tape fails and the synthetic fabric reinforcement mesh deteriorates when used on heating ducts. Duct tape is generally silvery gray in color, but also available in other colors and printed designs, from whimsical yellow ducks, college logos to practical camouflage patterns. It is often confused with gaffer tape (which is designed to be non-reflective and cleanly removed, unlike duct tape). During World War II, Revolite (then a division of Johnson & Johnson) developed an adhesive tape made from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Ground Vehicle
An unmanned ground vehicle (UGV) is a vehicle that operates while in contact with the ground and without an onboard human presence. UGVs can be used for many applications where it may be inconvenient, dangerous, or impossible to have a human operator present. Generally, the vehicle will have a set of sensors to observe the environment, and will either autonomously make decisions about its behavior or pass the information to a human operator at a different location who will control the vehicle through teleoperation. The UGV is the land-based counterpart to unmanned aerial vehicles and unmanned underwater vehicles. Unmanned robotics are being actively developed for both civilian and military use to perform a variety of dull, dirty, and dangerous activities. History A working remote controlled car was reported in the October 1921 issue of RCA's ''World Wide Wireless'' magazine. The car was unmanned and controlled wirelessly via radio; it was thought the technology could someday b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landfill
A landfill site, also known as a tip, dump, rubbish dump, garbage dump, or dumping ground, is a site for the disposal of waste materials. Landfill is the oldest and most common form of waste disposal, although the systematic burial of the waste with daily, intermediate and final covers only began in the 1940s. In the past, refuse was simply left in piles or thrown into pits; in archeology this is known as a midden. Some landfill sites are used for waste management purposes, such as temporary storage, consolidation and transfer, or for various stages of processing waste material, such as sorting, treatment, or recycling. Unless they are stabilized, landfills may undergo severe shaking or soil liquefaction of the ground during an earthquake. Once full, the area over a landfill site may be reclaimed for other uses. Operations Operators of well-run landfills for non-hazardous waste meet predefined specifications by applying techniques to: # confine waste to as small an area as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond Blade
A diamond blade is a saw blade which has diamonds fixed on its edge for cutting hard or abrasive materials. There are many types of diamond blade, and they have many uses, including cutting stone, concrete, asphalt, bricks, coal balls, glass, and ceramics in the construction industry; cutting semiconductor materials in the semiconductor industry; and cutting gemstones, including diamonds, in the gem industry. Types Diamond blades are available in different shapes: * ''Circular diamond saw blades'' are the most widely used type of diamond blade. * A ''diamond gang saw blade'' is a long steel plate with diamond segments welded onto it. Normally, tens or hundreds of diamond gang saw blades are used together to saw raw stone blocks. * A ''diamond band saw blade'' is a flexible closed steel band with diamonds fixed (often by electroplating) on one edge of the band. Diamond blades designed for specific uses include marble, granite, concrete, asphalt, masonry, and gem-cutting blade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawrence Livermore National Laboratory
Lawrence Livermore National Laboratory (LLNL) is a federal research facility in Livermore, California, United States. The lab was originally established as the University of California Radiation Laboratory, Livermore Branch in 1952 in response to the detonation of the first atomic bomb by the Soviet Union during the Cold War. It later became autonomous in 1971 and was designated a national laboratory in 1981. A federally funded research and development center, Lawrence Livermore Lab is primarily funded by the U.S. Department of Energy and it is managed privately and operated by Lawrence Livermore National Security, LLC (a partnership of the University of California), Bechtel, BWX Technologies, AECOM, and Battelle Memorial Institute in affiliation with the Texas A&M University System. In 2012, the laboratory had the synthetic chemical element livermorium (element 116) named after it. Overview LLNL is self-described as a "premier research and development institution for sci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palast Der Republik
The Palace of the Republic (german: link=no, Palast der Republik) was a building in Berlin that hosted the ''Volkskammer'', the parliament of East Germany, from 1976 to 1990. The Palace of the Republic, also known as the "People's Palace", was located on Museum Island in the Mitte area of East Berlin, on the site of the former Berlin Palace between the Lustgarten and Schlossplatz, near the West Berlin border. The Palast was completed in 1976 to house the ''Volkskammer'', also serving various cultural purposes including two large auditoria, art galleries, a theatre, a cinema, 13 restaurants, 5 beer halls, a bowling alley, 4 pool rooms, a billiards room, a rooftop skating rink, a private gym with spa, a casino, a medical station, a post office, a police station with an underground cellblock, an indoor basketball court, an indoor swimming pool, private barbershops and salons, public and private restrooms and a discothèque. In the early 1980s, a video game arcade for the child ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Germany
East Germany, officially the German Democratic Republic (GDR; german: Deutsche Demokratische Republik, , DDR, ), was a country that existed from its creation on 7 October 1949 until its dissolution on 3 October 1990. In these years the state was a part of the Eastern Bloc in the Cold War. Commonly described as a communist state, it described itself as a socialist "workers' and peasants' state".Patrick Major, Jonathan Osmond, ''The Workers' and Peasants' State: Communism and Society in East Germany Under Ulbricht 1945–71'', Manchester University Press, 2002, Its territory was administered and occupied by Soviet forces following the end of World War II—the Soviet occupation zone of the Potsdam Agreement, bounded on the east by the Oder–Neisse line. The Soviet zone surrounded West Berlin but did not include it and West Berlin remained outside the jurisdiction of the GDR. Most scholars and academics describe the GDR as a totalitarian dictatorship. The GDR was establish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demolition
Demolition (also known as razing, cartage, and wrecking) is the science and engineering in safely and efficiently tearing down of buildings and other artificial structures. Demolition contrasts with deconstruction, which involves taking a building apart while carefully preserving valuable elements for reuse purposes. For small buildings, such as houses, that are only two or three stories high, demolition is a rather simple process. The building is pulled down either manually or mechanically using large hydraulic equipment: elevated work platforms, cranes, excavators or bulldozers. Larger buildings may require the use of a wrecking ball, a heavy weight on a cable that is swung by a crane into the side of the buildings. Wrecking balls are especially effective against masonry, but are less easily controlled and often less efficient than other methods. Newer methods may use rotational hydraulic shears and silenced rock-breakers attached to excavators to cut or break throug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tour Montparnasse
Tour Maine-Montparnasse (Maine-Montparnasse Tower), also commonly named Tour Montparnasse, is a office skyscraper located in the Montparnasse area of Paris, France. Constructed from 1969 to 1973, it was the tallest skyscraper in France until 2011, when it was surpassed by the Tour First. It remains the tallest building in Paris outside the La Défense business district. , it is the 14th tallest building in the European Union. The tower was designed by architects Eugène Beaudouin, Urbain Cassan, and Louis Hoym de Marien and built by Campenon Bernard. On 21 September 2017, Nouvelle AOM won a competition to redesign the building's facade. Description Built on top of the Montparnasse–Bienvenüe Paris Métro station, the building has 59 floors. The 56th floor, 200 metres (600') from the ground, is home to Paris Montparnasse, an observation deck owned by Magnicity, a French company which also operates the Berlin TV Tower in Berlin and 360 CHICAGO at the former John Hancock C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jussieu Campus
The Jussieu Campus (''Campus Universitaire de Jussieu'') is a higher education campus located in the 5th arrondissement of Paris, France. It is the main campus of the Faculty of Science of Sorbonne University. Paris-VII University (now merged into University of Paris), was also originally located on the Jussieu campus, but moved to a new, independent campus, , in the new Paris Rive Gauche neighbourhood in 2006-2012. History The campus was opened in 1951 and eventually it would host a great part of the old faculty of sciences of the Sorbonne. The campus is built on the site of the former "Halle aux Vins," a wine market created by Napoleon Bonaparte. In 1957, the first university buildings were built along the Eastern bank of the River Seine (le quai Saint-Bernard), and Rue Cuvier. In order to allow the wine market to remain on the site, the architects planned to construct the buildings on stilts above the roads of the market. However, in 1964, with over 20,000 science stude ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
