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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 ** Thin-shell structure 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 ** Turtle 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, a British multinational oil and gas company ** Shell USA ** Shell Australia ** Shell Canada ** Shell Nigeria * Shell corporation, a type of company that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell Plc
Shell plc is a British multinational oil and 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 Amsterdam and the New York Stock Exchange. It is one of the oil and gas " supermajors" and by revenue and profits is consistently one of the largest companies in the world. Measured by both its own emissions, and the emissions of all the fossil fuels it sells, Shell was the ninth-largest corporate producer of greenhouse gas emissions in the period 1988–2015. Shell was formed in 1907 through the merger of Royal Dutch Petroleum Company of the Netherlands and The "Shell" Transport and Trading Company of the United Kingdom. The combined company rapidly became the leading competitor of the American Standard Oil and by 1920 Shell was the largest producer of oil in the world. Shell first entered the chemicals industry in 1929. Shell was one of the " Seven Sisters" w ... [...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 communi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell Oil Company
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 amongst 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, gasoline marketers and petrochemical manufacturers. History 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 Enterprise, itself a joint venture between Saudi Aramco and Texaco. After Texaco merged with Chevron in 2001, Shell purchased Texaco's shares in the joint ventures. In 20 ... [...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 comparison sort. It can be seen 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 position faster than a simple nearest neighbor exchange. Donald Shell published the first version of this sort in 1959. 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. 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 element produces a sorted list. Such a list is said to be ''h' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell Canada
Shell Canada Limited (french: Shell Canada Limitée) 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Secure Shell
The Secure Shell Protocol (SSH) 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 applications are based on a client–server architecture, connecting an SSH client instance with an SSH server. SSH operates as a layered protocol suite comprising three principal hierarchical components: the ''transport layer'' provides server authentication, confidentiality, and integrity; the ''user authentication protocol'' validates the user to the server; and the ''connection protocol'' multiplexes the encrypted tunnel into multiple logical communication channels. SSH was designed on Unix-like operating systems, as a replacement for Telnet and for unsecured remote Unix shell protocols, such as the Berkeley Remote Shell (rsh) and the related rlogin and rexec protocols, which all use insecure, plaintext transmission of authentication tokens. SSH w ... [...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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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. The shell is part of the body of the animal. Empty seashells are often found washed up on beaches by beachcombers. The shells are empty because the animal has died and the soft parts have decomposed or been eaten by another animal. 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 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 the family Serpulidae create shells which are tubes made of calcium carbonate cemented onto other surfaces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Command-line Interface
A command-line interpreter or command-line processor uses a command-line interface (CLI) to receive commands from a user in the form of lines of text. This provides a means of setting parameters for the environment, invoking executables and providing information to them as to what actions they are to perform. In some cases the invocation is conditional based on conditions established by the user or previous executables. Such access was first provided by computer terminals starting in the mid-1960s. This provided an interactive environment not available with punched cards or other input methods. Today, many users rely upon graphical user interfaces and menu-driven interactions. However, some programming and maintenance tasks may not have a graphical user interface and use a command line. Alternatives to the command-line interface include text-based user interface menus (for example, IBM AIX SMIT), keyboard shortcuts, and various desktop metaphors centered on the pointer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell (film)
''Shell'' is a 2012 independent Scottish drama film directed by Scott Graham. It stars Chloe Pirrie as Shell, a 17-year-old girl who lives and works at a petrol station in the remote Scottish Highlands. The film is a broader adaptation of a previous work by Scott Graham entitled with the same name released in 2007. Plot Shell lives at a remote petrol station in the highlands with her father, Pete (who is epileptic). Adam (a regular customer about Shell's age) works at the local sawmill. Pete has an epileptic seizure. When Pete returns home from taking a car to the scrapyard there is a charged encounter between him and Shell. That night, when the heating fails, Shell climbs into bed with her father. Next morning, Hugh (a regular, older, customer) returns bearing a gift of clothing for Shell. There is another charged encounter. After Hugh leaves, Shell approaches her father again as he repairs the heater. Adam arrives to invite Shell out. He has lost his job due to being suspect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Mollusc Shell
The mollusc (or molluskOften spelled mollusk shell in the USA; the spelling "mollusc" are preferred by ) 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—al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Shell Corporation
A shell corporation is a company or corporation that exists only on paper and has no office and no employees, but may have a bank account or 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 regularly for tax evasion, tax avoidance, money laundering, or to achieve a specific goal such as anonymity. Anonymity may be sought to shield personal assets from others, such as a spouse when a marriage is breaking down, from creditors, or from government authorities. Shell companies can have legitimate business purposes. They may, for example, act as trustee for a trust, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |