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L'Astrolabe (2016 Icebreaker)
''LAstrolabe'' is a French icebreaker that is used to bring personnel and supplies to the Dumont d'Urville Station in Antarctica. The vessel, built by Chantiers Piriou and delivered in September 2017, replaced the 1986-built vessel of the same name. Development and construction In June 2015, the Ministry of Overseas France awarded the construction of a 50 million Euro polar logistics vessel to the Chantiers Piriou from Concarneau in Brittany. The vessel, based on a concept developed by French naval architecture company Marine Assistance, combines the functions of the two existing French ships it replaced: the 1966-built patrol vessel ''L'Albatros'' and the 1986-built icebreaker '' L'Astrolabe''. The new vessel is owned and operated by the French Southern and Antarctic Lands (TAAF) administration, the French Polar Institute Paul-Émile Victor (IPEV) and the French Navy. Since Chantiers Piriou had no experience of building an ice-going vessel, the French shipyard joined forces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concarneau
Concarneau (, meaning ''Bay of Cornouaille'') is a commune in the Finistère department of Brittany in north-western France. Concarneau is bordered to the west by the Baie de La Forêt. The town has two distinct areas: the modern town on the mainland and the medieval Ville Close, a walled town on a long island in the centre of the harbour. Historically, the old town was a centre of shipbuilding, and its ramparts date from the 14th century. The Ville Close is now devoted to tourism with many restaurants and shops aimed at tourists. However restraint has been shown in resisting the worst excesses of souvenir shops. Also in the Ville Close is the fishing museum. The Ville Close is connected to the town by a bridge and at the other end a ferry to the village of Lanriec on the other side of the harbour. Events In August the town holds the annual ''Fête des Filets Bleus'' (Festival of the blue nets). The festival, named after the traditional blue nets of Concarneau's fishing fleet, is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
L'Astrolabe (1986 Icebreaker)
''YWAM Liberty'' is the former ''LAstrolabe'', a French icebreaking research vessel which was used to supply the Dumont d'Urville research station in Antarctica.translation The vessel made regular voyages between Hobart and the Dumont D'Urville research station for fifteen years and was replaced by a new icebreaker bearing the same name in 2017. History 1992 Northeast Passage The vessel has also traversed the Northeast passage. The European Space Agency reports a 1992 traverse "was the first civilian expedition through the NSR since the Russian revolution." ''LAstrolabe'' was escorted on her transit by Russian icebreakers. 2013 Antarctic Ocean rescue mission ''LAstrolabe'' attempted to reach ''Akademik Shokalskiy'', trapped by an outbreak of old glacial ice in the Antarctic Ocean. ''LAstrolabe'' didn't match Chinese research vessel '' Xuě Lóng''s from the trapped Russian ship, but got closer than the Australian '' Aurora Australis''' . Withdrawing after encounteri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Maritime Organization
The International Maritime Organization (IMO, French: ''Organisation maritime internationale'') is a specialised agency of the United Nations responsible for regulating shipping. The IMO was established following agreement at a UN conference held in Geneva in 1948 and the IMO came into existence ten years later, meeting for the first time in 1959. Headquartered in London, United Kingdom, IMO currently has 175 Member States and three Associate Members. The IMO's primary purpose is to develop and maintain a comprehensive regulatory framework for shipping and its remit today includes maritime safety, environmental concerns, legal matters, technical co-operation, maritime security and the efficiency of shipping. IMO is governed by an assembly of members which meets every two years. Its finance and organization is administered by a council of 40 members elected from the assembly. The work of IMO is conducted through five committees and these are supported by technical subcommitte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selective Catalytic Reduction
Selective catalytic reduction (SCR) is a means of converting nitrogen oxides, also referred to as with the aid of a catalyst into diatomic nitrogen (), and water (). A reductant, typically anhydrous ammonia (), aqueous ammonia (), or a urea () solution, is added to a stream of flue or exhaust gas and is reacted onto a catalyst. As the reaction drives toward completion, nitrogen (), and carbon dioxide (), in the case of urea use, are produced. Selective catalytic reduction of using ammonia as the reducing agent was patented in the United States by the Engelhard Corporation in 1957. Development of SCR technology continued in Japan and the US in the early 1960s with research focusing on less expensive and more durable catalyst agents. The first large-scale SCR was installed by the IHI Corporation in 1978.Steam: Its Generation and Uses. Babcock & Wilcox. Commercial selective catalytic reduction systems are typically found on large utility boilers, industrial boilers, and munici ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Antarctic Division
The Australian Antarctic Division (AAD) is a division of the Department of Climate Change, Energy, the Environment and Water. The Division undertakes science programs and research projects to contribute to an understanding of Antarctica and the Southern Ocean. It conducts and supports collaborative research programs with other Australian and international organisations, such as the Bureau of Meteorology and Geoscience Australia, as well as administering and maintaining a presence in Australian Antarctic and sub-Antarctic territories. Their website includes articles on the Antarctic wildlife, threats, guidelines and they have blogs written by Australians at the three Australian bases in Antarctica: Mawson, Davis and Casey. Charter Under its charter the Australian Antarctic Division: * Administers the Australian Antarctic Territory and the Territory of Heard Island and McDonald Islands * Conducts research in high priority areas of Antarctic science * Coordinates and manages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurora Australis (icebreaker)
''Aurora Australis'' was an Australian icebreaker. Built by Carrington Slipways and launched in 1989, the vessel is owned by P&O Maritime Services. It was regularly chartered by the Australian Antarctic Division (AAD) for research cruises in Antarctic waters and to support Australian bases in Antarctica. Design and construction Designed as a multi-purpose research and resupply ship, ''Aurora Australis'' was built by Carrington Slipways in Tomago. The vessel was launched in September 1989. ''Aurora Australis'' is long, and has a beam of , draught of and moulded depth of . Her displacement is 8,158 tons, gross tonnage 6,574 and deadweight tonnage 3,911 tons. Her propulsion machinery consists of two Wärtsilä medium-speed diesel engines in father-son arrangement, one 16-cylinder 16V32D producing 5,500 kW and one 12-cylinder 12V32D producing 4,500 kW. Both engines are coupled to a single shaft through a reduction gear, driving a single, left-hand-turning controll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adélie Land
Adélie Land (french: Terre Adélie, ) is a claimed territory on the continent of Antarctica. It stretches from a portion of the Southern Ocean coastline all the way inland to the South Pole. France has administered it as one of five districts of the French Southern and Antarctic Lands since 1955 and applied the Antarctic Treaty System rules since 1961. Article 4 deals with territorial claims, and although it does not renounce or diminish any preexisting claims to sovereignty, it also does not prejudice the position of Contracting Parties in their recognition or non-recognition of territorial sovereignty. France has had a permanent station in Adélie Land since April 9, 1950. The current Dumont d'Urville Station has a winter population around 25, but this goes up to about 78 during the Antarctic summer. A species of penguin, the Adélie penguin, is named after it. Geography Adélie Land lies between 136° E (near Pourquoi Pas Point at ) and 142° E (near Point Alden at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Ocean
The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by the Southern Ocean or Antarctica, depending on the definition in use. Along its core, the Indian Ocean has some large marginal or regional seas such as the Arabian Sea, Laccadive Sea, Bay of Bengal, and Andaman Sea. Etymology The Indian Ocean has been known by its present name since at least 1515 when the Latin form ''Oceanus Orientalis Indicus'' ("Indian Eastern Ocean") is attested, named after Indian subcontinent, India, which projects into it. It was earlier known as the ''Eastern Ocean'', a term that was still in use during the mid-18th century (see map), as opposed to the ''Western Ocean'' (Atlantic Ocean, Atlantic) before the Pacific Ocean, Pacific was surmised. Conversely, Ming treasure voyages, Chinese explorers in the Indian Oce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Tank
An ice tank is a ship model basin whose purpose is to provide a physical modeling environment for the interaction of ship, structures, or sea floor with both ice and water. Ice tanks may take the form of either a towing tank or maneuvering basin. Many un-refrigerated ship model basins use ice simulants such as paraffin wax, plaster, and mixtures of foam or plastic beads. The cleanup and handling of such simulants often proves cumbersome. What differentiates an ice tank from other ship model basins is that an ice tank has purpose built provisions into its structure for handling such material conveniently. Use of a refrigerated basin containing mostly water allows freezing and melting to be a convenient method of model ice preparation and cleanup. Ice scaling Ship model basins often simulate full-scale processes in miniature. Ships and structures are reduced linearly in size, and cubic in mass, displacement, and volume. The challenge in ice modeling is correctly reducing the ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nordic Yards Wismar
Lloyd Werft Wismar (former '' VEB Mathias-Thesen-Werft Wismar'', ''Aker MTW Werft'', ''Wadan Yards MTW'', ''Nordic Yards Wismar'') is a German shipbuilding company, headquartered in Wismar. Since June 1, 1990 it has been part of the Deutschen Maschinen- und Schiffbau AG (DMS AG), 2009–2016 was part of the Nordic Yards Holding GmbH, and since 2016 is part of the Lloyd Werft Group. History The ship repair yard was founded by Red Army on April 27, 1946. The ''Ivan Susanin'' was the first ship repaired at this yard. The shipyard developed quickly, from Soviet ship repair yard to VVB Schiffsreparaturwerft Wismar, in 1948, renamed to Hochseeschiffbau Mathias-Thesen-Werft Wismar VEB, in 1951. The first new ship ''V. Chkalov'' was built for the Soviet Union as war reparations after World War II on March 30, 1954. In 2016, Genting Hong Kong purchased Nordic Yards Wismar and combined it with the Nordic Yards Warnemunde and Stralsund shipyards and the German Lloyd Werft shipyard to form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aker Arctic
Aker Arctic Technology Oy (often shortened to Aker Arctic) is a Finnish engineering company that operates an ice model test basin in Helsinki. In addition to ship model testing, the company offers various design, engineering and consulting services related to icebreakers, other icegoing vessels and arctic offshore projects as well as full scale trials, field expeditions and training for icy conditions. Formerly the arctic research centre of Wärtsilä and later Masa-Yards, Aker Arctic was established on 30 December 2004 as an independent company with Finnish Industry Investment Ltd, ABB and Aker Solutions as its current shareholders. Aker Arctic and its predecessors have designed more than half of the world's icebreakers.Company . Aker Arctic. In addition, the company is responsible for a number of recent inventions in the design of icegoin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
