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Autofocus
An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system has to be done manually until indication. Autofocus methods are distinguished as active, passive or hybrid types. Autofocus systems rely on one or more sensors to determine correct focus. Some AF systems rely on a single sensor, while others use an array of sensors. Most modern SLR cameras use through-the-lens optical sensors, with a separate sensor array providing light metering, although the latter can be programmed to prioritize its metering to the same area as one or more of the AF sensors. Through-the-lens optical autofocusing is usually speedier and more precise than manual focus with an ordinary viewfinder, although more precise manual focus can be achieved with special accessories such as focusing magnifiers. Autofocus accuracy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AF Guardian
The Grumman AF Guardian was the first purpose-built anti-submarine warfare (ASW) carrier-based aircraft to enter service with the United States Navy.Kowalski 1991, p. 3. It consisted of two airframe variants, one for detection gear, the other for weapons. The Guardian remained in service until August 1955, when it was replaced by the twin-engined Grumman S-2 Tracker. The Guardian was the largest single-engine piston-powered carrier aircraft ever to see service. Design and development The original design concept for the aircraft that would become the Guardian, the XTB2F of 1944, was for a twin-engined aircraft with a warload and a range of 3,700 mi (5,950 km).Kowalski 1991, pp. 2–3. This was considered to be too large for practical use from an , and was cancelled in 1945, replaced by a modified Grumman F7F Tigercat, the XTSF-1. However, this too was considered impractical, and another alternative, the internally developed Grumman Model G-70, was selected instead, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force
An air force – in the broadest sense – is the national military branch that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an army or navy. Typically, air forces are responsible for gaining control of the air, carrying out strategic and tactical bombing missions, and providing support to land and naval forces often in the form of aerial reconnaissance and close air support. The term air force may also refer to a tactical air force or numbered air force, which is an operational formation either within a national air force or comprising several air components from allied nations. Air forces typically consist of a combination of fighters, bombers, helicopters, transport planes and other aircraft. Many air forces may command and control other air defence forces assets such as anti-aircraft artillery, surface-to-air missiles, or anti-ballistic missile warning ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AF Gruppen
The AF Group ASA () ( no, AF Gruppen) is the third largest civil engineering and construction company in Norway. The company headquarters is located in Oslo. The AF Group is listed on the Oslo Stock Exchange. History The AF Group was established in 1985. The company eventually went into the oil and gas sector and built the landfall tunnel from the Troll Field in 1991, among other projects. AF merged with Ragnar Evensen in 1997, one of Oslo's largest contractors, which doubled AF's revenues. The acquisition of real estate-company Odin in 1997 was the basis for the business area Property, and AF built up the business areas demolition and recycling in the years that followed. The company took on the demolition of Sola Refinery in Jæren in 2000, one of the largest demolition projects in Norway. AF eventually became one of Norway's biggest within demolition. Today, the company is one of the largest providers of energy efficiency and renewable energy production. In 2013, Offshore wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air France
Air France (; formally ''Société Air France, S.A.''), stylised as AIRFRANCE, is the flag carrier of France headquartered in Tremblay-en-France. It is a subsidiary of the Air France–KLM Group and a founding member of the SkyTeam global airline alliance. , Air France serves 36 destinations in France and operates worldwide scheduled passenger and cargo services to 175 destinations in 78 countries (93 including overseas departments and territories of France) and also carried 46,803,000 passengers in 2019. The airline's global hub is at Charles de Gaulle Airport with Orly Airport as the primary domestic hub. Air France's corporate headquarters, previously in Montparnasse, Paris, are located on the grounds of Charles de Gaulle Airport, north of Paris. Air France was formed on 7 October 1933 from a merger of Air Orient, Air Union, Compagnie Générale Aéropostale, Compagnie Internationale de Navigation Aérienne (CIDNA), and Société Générale de Transport Aérien (SGTA) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afghanistan
Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordered by Pakistan to the Durand Line, east and south, Iran to the Afghanistan–Iran border, west, Turkmenistan to the Afghanistan–Turkmenistan border, northwest, Uzbekistan to the Afghanistan–Uzbekistan border, north, Tajikistan to the Afghanistan–Tajikistan border, northeast, and China to the Afghanistan–China border, northeast and east. Occupying of land, the country is predominantly mountainous with plains Afghan Turkestan, in the north and Sistan Basin, the southwest, which are separated by the Hindu Kush mountain range. , Demographics of Afghanistan, its population is 40.2 million (officially estimated to be 32.9 million), composed mostly of ethnic Pashtuns, Tajiks, Hazaras, and Uzbeks. Kabul is the country's largest city and ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Almost Family
''Almost Family'' is an American drama television series based on the Australian television series ''Sisters'', developed by Annie Weisman which aired from October 2, 2019, to February 22, 2020, on Fox. In March 2020, Fox canceled the series after one season. Premise When it is revealed that fertility doctor Leon Bechley (Timothy Hutton) had used his own sperm to conceive at least 100 children throughout his career, Julia Bechley (Brittany Snow) unites with two of her half siblings—including childhood friend Edie Palmer (Megalyn Echikunwoke), and retired Olympic athlete Roxy Doyle (Emily Osment)—as they deal with issues that have been affecting their lives. Cast * Brittany Snow as Julia Bechley, a communications director for her father's fertility clinic * Megalyn Echikunwoke as Edie Palmer, Julia's former friend and one of Julia's half siblings who is a criminal defense attorney * Emily Osment as Roxy Doyle, a retired gymnast and one of Julia's half siblings * Mo McRae a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anarchist Federation (British Isles)
The Anarchist Federation (AF, AFed) is a far left federation of anarcho-communists in Great Britain. It is not a political party, but a direct action, agitational and propaganda organisation. History The British anarchist movement had been revitalized during the time of the miners' strike of 1984–1985, which had drawn many new people to anarchism and caused a number of anarchist organizations to spring up in the wake of Class War. In 1984, a number of former members of the Libertarian Communist Group established the Libertarian Communist Discussion Group (LCDG), drawing inspiration from texts such as the ''Platform'' by Nestor Makhno and the Manifesto of Libertarian Communism' by Georges Fontenis. The LCDG then began to collaborate with the editor of ''Virus'' magazine and started publishing their own texts about anarcho-communism, changing their name again to the Anarchist Communist Discussion Group (ACDG). After the split of Syndicalist Fight (SyF) from the Direct Actio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advanced Format
Advanced Format (AF) is any disk sector format used to store data on magnetic disks in hard disk drives (HDDs) that exceeds 512, 520, or 528 bytes per sector, such as the 4096, 4112, 4160, and 4224-byte (4 KB) sectors of an Advanced Format Drive (AFD). Larger sectors enable the integration of stronger error correction algorithms to maintain data integrity at higher storage densities. History The use of long data sectors was suggested in 1998 in a technical paper issued by the National Storage Industry Consortium (NSIC) calling attention to the conflict between continuing increases in areal density and the traditional 512-byte-per-sector format used in hard disk drives. Without revolutionary breakthroughs in magnetic recording system technologies, areal densities, and with them the storage capacities, hard disk drives were projected to stagnate. The storage industry trade organization, International Disk Drive Equipment and Materials Association (IDEMA), responded by organ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Adaptation Fund
The Adaptation Fund is an international fund that finances projects and programs aimed at helping developing countries to adapt to the harmful effects of climate change. It is set up under the Kyoto Protocol of the United Nations Framework Convention on Climate Change (UNFCCC). History The Adaptation Fund was officially launched in 2007, although it was established in 2001 at the 7th Conference of the Parties (COP7) to the UNFCCC in Marrakech, Morocco to finance concrete adaptation projects and programmes that reduce the adverse effects of climate change facing communities, countries, and sectors. It is intended to finance climate adaptation projects and programmes in developing countries that are parties to the Kyoto Protocol. Funding mechanism The Adaptation Fund was initiated to be primarily financed by a share of proceeds from clean development mechanism (CDM) project activities and also with funds from other sources. However, the initial modest contribution of 131€ was ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acronym Finder
Acronym Finder (AF) is a free, online, searchable dictionary and database of abbreviations (acronyms, initialisms, and others) and their meanings. The entries are classified into categories such as ''Information Technology, Military/Government, Science, Slang/Pop Culture'' etc. It also contains a database of the United States and Canadian postal codes. For abbreviations with multiple meanings, they are listed by popularity, with the most common one being listed first. it claims to have over a million "''human-edited''" and verified definitions. History Acronym Finder was registered and the database put online by Michael K. Molloy of Colorado in 1997, but he began compiling it in 1985, working as a computer systems officer for the USAF. Molloy first saw the need of an acronym list while integrating computers at the Randolph Air Force Base in Texas, his first acronym list running up to 30 pages. When he had retired and put AF online in 1997, his list already had 43,000 acronyms. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SMS Language
Short Message Service (SMS) language, textism, or textese is the abbreviated language and slang commonly used in the late 1990s and early 2000s with mobile phone text messaging, and occasionally through Internet-based communication such as email and instant messaging. Features of early mobile phone messaging encouraged users to use abbreviations. 2G technology made text entry difficult, requiring multiple key presses on a small keypad to generate each letter, and messages were generally limited to 160 characters (or 1280 bits). Additionally, SMS language made text messages quicker to compose, while also avoiding additional charges from mobile network providers for lengthy messages exceeding 160 characters. History SMS language is similar to telegraphs' language where charges were by the word. It seeks to use the fewest letters to produce ultra-concise words and sentiments in dealing with the space, time, and cost constraints of text messaging. It follows from how early SMS pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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