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Dynamic Positioning
Dynamic positioning (DP) is a computer-controlled system to automatically maintain a vessel's position and heading by using its own propellers and thrusters. Position reference sensors, combined with wind sensors, motion sensors and gyrocompasses, provide information to the computer pertaining to the vessel's position and the magnitude and direction of environmental forces affecting its position. Examples of vessel types that employ DP include ships and semi-submersible mobile offshore drilling units (MODU), oceanographic research vessels, cable layer ships and cruise ships. The computer program contains a mathematical model of the vessel that includes information pertaining to the wind and current drag of the vessel and the location of the thrusters. This knowledge, combined with the sensor information, allows the computer to calculate the required steering angle and thruster output for each thruster. This allows operations at sea where mooring or anchoring is not feasible du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Jolla
La Jolla ( , ) is a hilly, seaside neighborhood within the city of San Diego, California, United States, occupying of curving coastline along the Pacific Ocean. The population reported in the 2010 census was 46,781. La Jolla is surrounded on three sides by ocean bluffs and beaches and is located north of Downtown San Diego and south of the Orange County line. The climate is mild, with an average daily temperature of . La Jolla is home to many educational institutions and a variety of businesses in the areas of lodging, dining, shopping, software, finance, real estate, bioengineering, medical practice and scientific research. The University of California, San Diego (UCSD) is located in La Jolla, as are the Salk Institute, Scripps Institution of Oceanography (part of UCSD), Scripps Research Institute, and the headquarters of National University (though its academic campuses are elsewhere). History Origin of the name Local Native Americans, the Kumeyaay, called this locatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floating Production Storage And Offloading
A floating production storage and offloading (FPSO) unit is a floating vessel used by the offshore oil and gas industry for the production and processing of hydrocarbons, and for the storage of oil. An FPSO vessel is designed to receive hydrocarbons produced by itself or from nearby platforms or subsea template, process them, and store oil until it can be offloaded onto a tanker or, less frequently, transported through a pipeline. FPSOs are preferred in frontier offshore regions as they are easy to install, and do not require a local pipeline infrastructure to export oil. FPSOs can be a conversion of an oil tanker (like the '' Seawise Giant'') or can be a vessel built specially for the application. A vessel used only to store oil (without processing it) is referred to as a floating storage and offloading (FSO) vessel. The first of a related type, floating liquefied natural gas vessels, went into service in 2016. Types FPSOs are classified into the following types. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drillship
A drillship is a merchant vessel designed for use in exploratory offshore drilling of new oil and gas wells or for scientific drilling purposes. In recent years the vessels have been used in deepwater and ultra-deepwater applications, equipped with the latest and most advanced dynamic positioning systems. History The first drillship was the ''CUSS I'', designed by Robert F. Bauer of Global Marine in 1955. The ''CUSS I'' had drilled in 400-foot-deep waters by 1957.Schempf, F. (2007). Pioneering Offshore: The Early Years. ulsa, OK PennWell Custom Pub.. Robert F. Bauer became the first president of Global Marine in 1958. In 1961 Global Marine started a new drillship era. They ordered several self-propelled drillships each with a rated centerline drilling of 20,000 foot-wells in water depths of 600 feet. The first was named ''CUSS ( Glomar) II'', a 5,500-deadweight-ton vessel, costing around $4.5 million. Built by a Gulf Coast shipyard, the vessel was almost twice the size ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dredging
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger. Dredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Dredges have been classified as suction or mechanical. Dredging has significant environmental impacts: it can disturb marine sediments, leading to both short- and long-term water pollution, destroy important seabed ecosystems, and can release human-sourced toxins captured in the sediment. Descripti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diving Support Vessel
A diving support vessel is a ship that is used as a floating base for professional diving projects. Basic requirements are the ability to keep station accurately and reliably throughout a diving operation, often in close proximity to drilling or production platforms, for positioning to degrade slowly enough in deteriorating conditions to recover divers without excessive risk, and to carry the necessary support equipment for the mode of diving to be used. Recent offshore diving support vessels tend to be dynamically positioned (DP) and double as remotely operated underwater vehicle (ROV) support vessels, and also be capable of supporting seismic survey operations and cable-laying operations. DP makes a wider range of operations possible, but the platform presents some inherent hazards, particularly the thrusters, making launch and recovery by diving bell widespread. They may use a moonpool to shelter the position where the bell or ROV enters and exits the water, and the launch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cruise Ship
Cruise ships are large passenger ships used mainly for vacationing. Unlike ocean liners, which are used for transport, cruise ships typically embark on round-trip voyages to various ports-of-call, where passengers may go on tours known as "shore excursions". On "cruises to nowhere" or "nowhere voyages", cruise ships make two- to three-night round trips without visiting any ports of call.Compare: Modern cruise ships tend to have less hull strength, speed, and agility compared to ocean liners. However, they have added amenities to cater to water tourists, with recent vessels being described as "balcony-laden floating condominiums". As of December 2018, there were 314 cruise ships operating worldwide, with a combined capacity of 537,000 passengers. Cruising has become a major part of the tourism industry, with an estimated market of $29.4 billion per year, and over 19 million passengers carried worldwide annually . The industry's rapid growth saw nine or more ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crane Vessel
A crane vessel, crane ship or floating crane is a ship with a crane specialized in lifting heavy loads. The largest crane vessels are used for offshore construction. Conventional monohulls are used, but the largest crane vessels are often catamaran or semi-submersible types as they have increased stability. On a sheerleg crane, the crane is fixed and cannot rotate, and the vessel therefore is manoeuvered to place loads. History In medieval Europe, crane vessels which could be flexibly deployed in the whole port basin were introduced as early as the 14th century. During the age of sail, the sheer hulk was used extensively as a floating crane for tasks that required heavy lift. At the time, the heaviest single components of ships were the main masts, and sheer hulks were essential for removing and replacing them, but they were also used for other purposes. Some crane vessels had engines for propulsion, others needed to be towed with a tugboat. In 1920, the 1898-built battle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable Layer
A cable layer or cable ship is a deep-sea vessel designed and used to lay underwater cables for telecommunications, electric power transmission, military, or other purposes. Cable ships are distinguished by large cable sheaves for guiding cable over bow or stern or both. Bow sheaves, some very large, were characteristic of all cable ships in the past, but newer ships are tending toward having stern sheaves only, as seen in the photo of CS ''Cable Innovator'' at the Port of Astoria on this page. The names of cable ships are often preceded by "C.S." as in CS ''Long Lines''. The first transatlantic telegraph cable was laid by cable layers in 1857–58. It briefly enabled telecommunication between Europe and North America before misuse resulted in failure of the line. In 1866 the successfully laid two transatlantic cables, securing future communication between the continents. Modern cable ships Cable ships have unique requirements related to having long idle periods in po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ATON
Aton, ATON or variants thereof may refer to: People * Aton Ben-Horin (born 1979), American music executive and record producer * Aton Edwards (born c. 1962), American expert in the fields of emergency preparedness, self-reliance and sustainable living * Ayé Aton, American painter, designer, muralist, musician and educator born Robert Underwood (1940–2017) * Jim Aton (1925–2008), American jazz bassist, pianist, vocalist and composer * Baron Aton, an abeyant title in the Peerage of England ** Gilbert de Aton, 1st Baron Aton (died 1342) ** William de Aton, 2nd Baron Aton (died 1373) Businesses * Aton LLC, a Russian investment bank (mother RUSSIA) * Aton Resources, a Canadian mining company (Egyptian God) * ATON GmbH, parent company of EDAG (Engineering + Design AG) Acronym *Aid to navigation * Uysal–Walker Archive of Turkish Oral Narrative at Texas Tech University Other uses * Aten or Aton, the disk of the sun, regarded as a deity in ancient Egyptian religion * ''aton'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aids To Navigation
Human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV), a retrovirus. Following initial infection an individual may not notice any symptoms, or may experience a brief period of influenza-like illness. Typically, this is followed by a prolonged incubation period with no symptoms. If the infection progresses, it interferes more with the immune system, increasing the risk of developing common infections such as tuberculosis, as well as other opportunistic infections, and tumors which are rare in people who have normal immune function. These late symptoms of infection are referred to as acquired immunodeficiency syndrome (AIDS). This stage is often also associated with Cachexia, unintended weight loss. HIV is #Transmission, spread primarily by unprotected sex (including anal sex, anal and vaginal sex), contaminated blood transfusions, hypodermic needles, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sbx Underway
sbX is a bus rapid transit (BRT) service in San Bernardino and Loma Linda, California, United States. It is operated by Omnitrans, a public transportation agency in southwestern San Bernardino County. The route is internally named by Omnitrans as the Green Line. sbX is intended to be a brand of bus rapid transit service that will eventually traverse major surface streets throughout Omnitrans' service area. The Institute for Transportation and Development Policy (ITDP), under its BRT Standard, has given the sbX corridor a Bronze ranking. Development Construction was set to finish in late 2013, but was pushed back due to ongoing construction at San Bernardino's downtown transit center. Service began in April 2014. Omnitrans has begun making upgrades to its East Valley vehicle maintenance facility in San Bernardino, including modifications to its parking lot, service bays, bus wash, and fueling facility, to accommodate 60-foot buses, all of which have been purchased and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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