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Shell
Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses Science Biology * Seashell, a hard outer layer of a marine animal, found on beaches * Eggshell * Nutshell * Exoskeleton, an external covering of some animals ** Mollusc shell *** Bivalve shell *** Gastropod shell ** Shell, of a brachiopod#Shells and their mechanisms, brachiopod * Turtle shell * Armadillo shell Physics and chemistry * Electron shell or a principal energy level of electrons outside an atom's nucleus * Nuclear shell model, a principal energy level of nucleons within an atom's nucleus * On shell and off shell, quantum field theory concepts depending on whether classical equations of motion are obeyed Mathematics * Spherical shell Organisations * Shell plc formerly Royal Dutch Shell plc, a British multinational oil and gas company ** Shell USA, Shell Oil Company or Shell USA ** Shell Au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell Plc
Shell plc is a British Multinational corporation, multinational petroleum, oil and natural gas, gas company, headquartered in London, England. Shell is a public limited company with a primary listing on the London Stock Exchange (LSE) and secondary listings on Euronext, Euronext Amsterdam and the New York Stock Exchange. A core component of Big Oil, Shell is the second largest investor-owned oil and gas company in the world by revenue (after ExxonMobil), and among the List of largest companies by revenue, world's largest companies out of any industry. Measured by both its own emissions, and the emissions of all the fossil fuels it sells, Shell was the Top contributors to greenhouse gas emissions, ninth-largest corporate producer of greenhouse gas emissions in the period 1988–2015. Shell was formed in April 1907 through the Mergers and acquisitions, merger of Royal Dutch Petroleum Company of the Netherlands and The "Shell" Transport and Trading Company of the United Kingdom. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell Nigeria
Shell Nigeria is the common name for Shell plc's Nigerian operations carried out through four subsidiaries—primarily Shell Petroleum Development Company of Nigeria Limited (SPDC). Royal Dutch Shell's joint ventures account for more than 21% of Nigeria's total petroleum production ( (bpd) in 2009). The company has been controversial in communities in the Niger Delta, who point to its poor environmental record and that most of the economic benefit from oil exploitation has not benefited local communities. In particular, when, in 1993 the Movement for the Survival of the Ogoni People (MOSOP) organized large protests against Shell and the government, it led to repression of the local community. The company has been responsible for some significant oil spills in the Niger delta, and both Nigerian and European courts have held them liable for environmental destruction. One of the most significant cases was at one of Shell's oil extraction facilities located in the Ejama-Ebubu commu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell USA
Shell USA, Inc. (formerly Shell Oil Company, Inc.) is the United States–based wholly owned subsidiary of Shell plc, a UK-based transnational corporation " oil major" which is among the largest oil companies in the world. Approximately 18,000 Shell employees are based in the U.S. Its U.S. headquarters are in Houston, Texas. Shell USA, including its consolidated companies and its share in equity companies, is one of America's largest oil and natural gas producers, natural gas marketers, fuel marketers and petrochemical manufacturers. History In 1979, Shell purchased Belridge Oil Company for $3.65 billion, which at the time was called the "biggest cash takeover in American history" by US government sources. In 1997, Shell and Texaco entered into two refining/marketing joint ventures. One combined their Midwestern and Western operations and was known as Equilon. The other, known as Motiva Enterprises, combined the Eastern and Gulf Coast operations of Shell Oil and Star Enter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shellsort
Shellsort, also known as Shell sort or Shell's method, is an in-place algorithm, in-place comparison sort. It can be understood as either a generalization of sorting by exchange (bubble sort) or sorting by insertion (insertion sort). The method starts by sorting pairs of elements far apart from each other, then progressively reducing the gap between elements to be compared. By starting with far-apart elements, it can move some out-of-place elements into the position faster than a simple nearest-neighbor exchange. The running time of Shellsort is heavily dependent on the gap sequence it uses. For many practical variants, determining their time complexity remains an open problem. The algorithm was first published by Donald Shell in 1959, and has nothing to do with shells. Description Shellsort is an optimization of insertion sort that allows the exchange of items that are far apart. The idea is to arrange the list of elements so that, starting anywhere, taking every ''h''th elem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell Canada
Shell Canada Limited () is the principal Canadian subsidiary of British energy major Shell plc and one of Canada's largest integrated oil companies. Exploration and production of oil, natural gas and sulphur is a major part of its business, as well as the marketing of gasoline and related products through the company's approximately 1,800 stations across Canada. After a global reorganization by the European parent, Shell's North American operations are controlled by Shell Energy North America, which is headquartered in Houston, Texas. Shell Energy North America's Canadian operational unit, Shell Canada, maintains a regional corporate office in Calgary, Alberta. Shell Canada also maintains a major office in Toronto, Ontario. History Shell Canada's shares were originally independently traded on the Toronto Stock Exchange. The company was 78% owned by Royal Dutch Shell which in 2006 launched an $8.7-billion takeover of the 22% of Shell Canada that it didn't own. In March 2007 th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Secure Shell
The Secure Shell Protocol (SSH Protocol) is a cryptographic network protocol for operating network services securely over an unsecured network. Its most notable applications are remote login and command-line execution. SSH was designed for Unix-like operating systems as a replacement for Telnet and unsecured remote Unix shell protocols, such as the Berkeley Remote Shell (rsh) and the related rlogin and rexec protocols, which all use insecure, plaintext methods of authentication, like passwords. Since mechanisms like Telnet and Remote Shell are designed to access and operate remote computers, sending the authentication tokens (e.g. username and password) for this access to these computers across a public network in an unsecured way poses a great risk of 3rd parties obtaining the password and achieving the same level of access to the remote system as the telnet user. Secure Shell mitigates this risk through the use of encryption mechanisms that are intended to hide th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell Australia
Shell Australia is the Australian subsidiary of Shell. Shell has operated in Australia since 1901, initially delivering bulk fuel into Australia, then establishing storage and distribution terminals, oil refineries, and a network of service stations. It extended its Australian activities to oil exploration, petrochemicals and coal mining, and became a leading partner in Australia's largest resource development project, the North West Shelf Venture. In August 2014, Shell sold its downstream business in Australia, including its Geelong Oil Refinery and 870 retail sites, along with its bulk fuels, bitumen, chemicals and part of its lubricants businesses, to the Dutch firm Vitol, for A$2.9 billion. Aside from its aviation fuel business which was retained, Shell's remaining Australian activities are in upstream businesses, comprising exploration, liquified natural gas (LNG) and onshore coal seam gas. Shell holds large reserves in the North West Shelf, Gorgon, Browse Basin, onsh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell (2012 Film)
''Shell'' is a 2012 independent drama film directed by Scott Graham. It stars Chloe Pirrie as Shell, a 17-year-old girl who lives and works at a Filling station, petrol station in the Scottish Highlands. The film is a broader adaptation of a previous work by Scott Graham entitled with the same name released in 2007. Plot The 17 year-old Shell lives an isolated life at a remote petrol station in the highlands with her father, Pete, who is a mechanic. She is lonely, with her only interactions coming from the station's customers. She has two regular customers, young sawmill worker Adam and divorced salesman Hugh. She has to care for her epileptic father, although Pete repels Shell's incestuous advances towards him. One night, Pete and Shell help a couple, Robert and Clare, who have accidentally hit a deer. The next morning, Pete strips the deer to be used as venison, while Robert and Clare realize their car is too run-down to be used again and opts to rent a car instead. Clare con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Command-line Interface
A command-line interface (CLI) is a means of interacting with software via command (computing), commands each formatted as a line of text. Command-line interfaces emerged in the mid-1960s, on computer terminals, as an interactive and more user-friendly alternative to the non-interactive mode available with punched cards. For a long time, a CLI was the most common interface for software, but today a graphical user interface (GUI) is more common. Nonetheless, many programs such as operating system and software development utility software, utilities still provide CLI. A CLI enables automation, automating computer program, programs since commands can be stored in a scripting language, script computer file, file that can be used repeatedly. A script allows its contained commands to be executed as group; as a program; as a command. A CLI is made possible by command-line interpreters or command-line processors, which are programs that execute input commands. Alternatives to a CLI ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Seashell
A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer usually created by an animal or organism that lives in the sea. Most seashells are made by Mollusca, mollusks, such as snails, clams, and oysters to protect their soft insides. Empty seashells are often found washed up on beaches by beachcombing, beachcombers. The shells are empty because the animal has died and the soft parts have decomposition, decomposed or been eaten by another organism. A seashell is usually the exoskeleton of an invertebrate (an animal without a backbone), and is typically composed of calcium carbonate or chitin. Most shells that are found on beaches are the shells of marine (ocean), marine mollusks, partly because these shells are usually made of calcium carbonate, and endure better than shells made of chitin. Apart from mollusk shells, other shells that can be found on beaches are those of barnacles, horseshoe crabs and brachiopods. Marine annelid worms in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell Corporation
A shell corporation is a company or corporation with no significant assets or operations often formed to obtain financing before beginning business. Shell companies were primarily vehicles for lawfully hiding the identity of their beneficial owners, and this is still the defining feature of shell companies due to the loopholes in the global corporate transparency initiatives. It may hold passive investments or be the registered owner of assets, such as intellectual property, or ships. Shell companies may be registered to the address of a company that provides a service setting up shell companies, and which may act as the agent for receipt of legal correspondence (such as an accountant or lawyer). The company may serve as a vehicle for business transactions without itself having any significant assets or operations. Shell companies are used for legitimate purposes but can be used for tax evasion, tax avoidance, money laundering, to dodge current or future lawsuits or to achi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Mollusc Shell
The mollusc (or mollusk) shell is typically a calcareous exoskeleton which encloses, supports and protects the soft parts of an animal in the phylum Mollusca, which includes snails, clams, tusk shells, and several other classes. Not all shelled molluscs live in the sea; many live on the land and in freshwater. The ancestral mollusc is thought to have had a shell, but this has subsequently been lost or reduced on some families, such as the squid, octopus, and some smaller groups such as the caudofoveata and neomeniomorpha, solenogastres. Today, over 100,000 living species bear a shell; there is some dispute as to whether these shell-bearing molluscs form a monophyletic group (conchifera) or whether shell-less molluscs are interleaved into their family tree. Malacology, the scientific study of molluscs as living organisms, has a branch devoted to the study of shells, and this is called conchology—although these terms used to be, and to a minor extent still are, used interchange ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |