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IDF World Darts Championship
IDF or idf may refer to: Defence forces *Irish Defence Forces *Israel Defense Forces *Iceland Defense Force, of the US Armed Forces, 1951-2006 *Indian Defence Force, a part-time force, 1917 Organizations *Israeli Diving Federation *Interaction Design Foundation *International Diabetes Federation *International DOI Foundation, of the digital object identifier Places *Idiofa Airport, Idiofa, Democratic Republic of the Congo (IATA airport code) *Île-de-France, region of France Other uses *Intensity-duration-frequency curve, for rainfall *Intel Developer Forum *Intermediate Data Format, a file format for electronic design automation *Intermediate distribution frame, for telecommunications wiring *AIDC F-CK-1 Ching-kuo, Indigenous Defense Fighter, Taiwanese aircraft *Inverse Document Frequency, a factor in the tf–idf principle *Indirect fire Indirect fire is aiming and firing a projectile without relying on a direct line of sight between the gun and its target, as in the case ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irish Defence Forces
The Defence Forces ( ga, Fórsaí Cosanta, officially styled ) derives its origins from the Irish Volunteers. Whilst the Irish for ''Defence Forces'' is , as Ó Cearúil (1999) points out, the Defence Forces are officially styled . is used in other contexts (e.g. is ''Defence Force Regulations'') as well as having a defined meaning in legislation. are the military, armed forces of Republic of Ireland, Ireland. They encompass the Irish Army, Army, Irish Air Corps, Air Corps, Irish Naval Service, Naval Service, and Reserve Defence Forces. The Supreme Commander of the Defence Forces is the President of Ireland. All Defence Forces officers hold their commission (document), commission from the President, but in practice the Minister for Defence (Ireland), Minister for Defence acts on the President's behalf and reports to the Government of Ireland. The Minister for Defence is advised by the Council of Defence on the business of the Department of Defence (Ireland), Department of Def ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intensity-duration-frequency Curve
An intensity-duration-frequency curve (IDF curve) is a mathematical function that relates the rainfall intensity with its time, duration and return period, frequency of occurrence. These curves are commonly used in Hydrological modelling, hydrology for Flood#Flood forecasting, flood forecasting and Civil engineering#Water resources engineering, civil engineering for Urban runoff, urban drainage design. However, the ''IDF curves'' are also analysed in hydrometeorology because of the interest in the ''time concentration'' or ''time-structure'' of the rainfall. Additionally, Heidari et al., (2020) recently developed IDF curves for drought events Mathematical approaches The IDF curves can take different mathematical expressions, theoretical or empirically fitted to observed rainfall data. For each duration (e.g. 5, 10, 60, 120, 180 ... minutes), the empirical distribution function, empirical cumulative distribution function (ECDF), and a determined frequency or return period is set. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indirect Fire
Indirect fire is aiming and firing a projectile without relying on a direct line of sight between the gun and its target, as in the case of direct fire. Aiming is performed by calculating azimuth and inclination, and may include correcting aim by observing the fall of shot and calculating new angles. Description There are two dimensions in aiming a weapon: * In the horizontal plane (azimuth); and * In the vertical plane (elevation), which is governed by the distance (range) to the target and the energy of the propelling charge. The projectile trajectory is affected by atmospheric conditions, the velocity of the projectile, the difference in altitude between the firer and the target, and other factors. Direct fire sights may include mechanisms to compensate for some of these. Handguns and rifles, machine guns, anti-tank guns, tank main guns, many types of unguided rockets (although missiles, mortars, howitzers, rocket artillery, multiple rocket launchers, and artillery in gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tf–idf
In information retrieval, tf–idf (also TF*IDF, TFIDF, TF–IDF, or Tf–idf), short for term frequency–inverse document frequency, is a numerical statistic that is intended to reflect how important a word is to a document in a collection or corpus. It is often used as a weighting factor in searches of information retrieval, text mining, and user modeling. The tf–idf value increases proportionally to the number of times a word appears in the document and is offset by the number of documents in the corpus that contain the word, which helps to adjust for the fact that some words appear more frequently in general. tf–idf is one of the most popular term-weighting schemes today. A survey conducted in 2015 showed that 83% of text-based recommender systems in digital libraries use tf–idf. Variations of the tf–idf weighting scheme are often used by search engines as a central tool in scoring and ranking a document's relevance given a user query. tf–idf can be successfully u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AIDC F-CK-1 Ching-kuo
The AIDC F-CK-1 Ching-Kuo (), commonly known as the Indigenous Defense Fighter (IDF), is a multirole combat aircraft named after Chiang Ching-kuo, the late President of the Republic of China. The aircraft made its first flight in 1989. It entered service with Republic of China Air Force (Taiwan) in 1992. All 130 production aircraft were manufactured by 1999. Taiwan initiated the IDF program when the United States refused to sell them F-20 Tigershark and F-16 Fighting Falcon jet fighters following diplomatic pressure from China. Taiwan therefore decided to develop an advanced indigenous jet fighter. The Aerospace Industrial Development Corporation (AIDC), based in Taichung, Taiwan, designed and built the IDF jet fighter. Development Background The preliminary search for a replacement for the ROCAF's F-5s and F-104s began with the XF-6 indigenous fighter project, later renamed ''Ying Yang'', in the late 1970s. After the US established formal relations with China and ended th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intermediate Distribution Frame
An intermediate distribution frame (IDF) is a distribution frame in a central office or customer premises, which cross connects the user cable media to individual user line circuits and may serve as a distribution point for multipair cables from the main distribution frame (MDF) or combined distribution frame (CDF) to individual cables connected to equipment in areas remote from these frames. IDFs are used for telephone exchange central office, customer-premises equipment, wide area network (WAN), and local area network (LAN) environments, among others. In central office environments the IDF may contain circuit termination equipment from various auxiliary components. In WAN and LAN environments IDFs can hold devices of different types including backup systems (hard drives or other media as self-contained, or as RAIDs, CD-ROMs, etc.), networking (switches, hubs, routers), and connections ( fiber optics, coaxial In geometry, coaxial means that several three-dimensional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intermediate Data Format
Intermediate Data Format (IDF) files are used interoperate between electronic design automation (EDA) software and solid modeling mechanical computer-aided design (CAD) software. The format was devised by David Kehmeier at the Mentor Graphics Corporation. The EMN File contains the PCB-Outline, the Position of the Parts, Positions of Holes and milling, keep out regions and keep in regions. The EMP file contains the outline and height of the parts. Some CAD software allows the use of a map file to load more detailed part models.https://www.simplifiedsolutionsinc.com/images/Steps-to-create-3D-PCBs-in-ProE.pdf Compared to STEP STEP - also known as ISO 10303-21 STEP-File is a widely used data exchange form of STEP. ISO 10303 can represent 3D objects in Computer-aided design (CAD) and related information. Due to its ASCII structure, a STEP-file is easy to read, with typically one instance per line. Th ... - has both advantages and disadvantages over IDF. If both MCAD and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intel Developer Forum
The Intel Developer Forum (IDF) was a biannual gathering of technologists to discuss Intel products and products based on Intel products. The first IDF was held in 1997. To emphasize the importance of China, the Spring 2007 IDF was held in Beijing instead of San Francisco, and San Francisco and Taipei shared the Fall IDF event in September and October, respectively. Three IDF shows were scheduled in 2008; with the date of IDF San Francisco notably moving to August rather than September. In previous years, events were held in major cities around the world such as San Francisco, Mumbai, Bangalore, Moscow, Cairo, Sao Paulo, Amsterdam, Munich and Tokyo. On April 17, 2017, Intel announced that it would no longer be hosting IDF. As a result of this announcement, IDF17, which was scheduled for August in San Francisco, was canceled. 2007 events * April 17–18, 2007 - Beijing, China * September 18–20, 2007 - San Francisco, United States * October 15–16, 2007 - Taipei, Taiwan 2008 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Île-de-France
, timezone1 = CET , utc_offset1 = +01:00 , timezone1_DST = CEST , utc_offset1_DST = +02:00 , blank_name_sec1 = Gross regional product , blank_info_sec1 = Ranked 1st , blank1_name_sec1 = –Total , blank1_info_sec1 = €742 billion (2019) , blank2_name_sec1 = –Per capita , blank2_info_sec1 = €59,400 (2018) , blank_name_sec2 = NUTS Region , blank_info_sec2 = FR1 , website = , iso_code = FR-IDF , footnotes = The Île-de-France (, ; literally "Isle of France") is the most populous of the eighteen regions of France. Centred on the capital Paris, it is located in the north-central part of the country and often called the ''Région parisienne'' (; en, Paris Region). Île-de-France is densely populated and retains a prime economic position on the national stage: though it covers only , abo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Israel Defense Forces
The Israel Defense Forces (IDF; he, צְבָא הַהֲגָנָה לְיִשְׂרָאֵל , ), alternatively referred to by the Hebrew-language acronym (), is the national military of the Israel, State of Israel. It consists of three service branches: the Israeli Ground Forces, the Israeli Air Force, and the Israeli Navy. It is the sole military wing of the Israeli security forces, Israeli security apparatus, and has no civilian jurisdiction within Israel. The IDF is headed by the Chief of the General Staff (Israel), Chief of the General Staff, who is subordinate to the Ministry of Defense (Israel), Israeli Defense Minister. On the orders of David Ben-Gurion, the IDF was formed on 26 May 1948 and began to operate as a Conscription in Israel, conscript military, drawing its initial recruits from the already-existing paramilitaries of the Yishuv—namely Haganah, the Irgun, and Lehi (militant group), Lehi. Since its formation shortly after the Israeli Declaration of Independen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Idiofa Airport
Idiofa Airport is an airport serving Idiofa, a city in Kwilu Province, Democratic Republic of the Congo. See also * * * Transport in the Democratic Republic of the Congo * List of airports in the Democratic Republic of the Congo This is a list of airports in the Democratic Republic of the Congo, sorted by location. Airports Airport names shown in bold indicate the airport has scheduled service on commercial airlines. See also * Transport in the Democratic Republic ... References External links FallingRain - Idiofa AirportOpenStreetMap - Idiofa AirportOurAirports - Idiofa Airport* Airports in Kwilu Province {{DRCongo-airport-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International DOI Foundation
A digital object identifier (DOI) is a persistent identifier or handle used to uniquely identify various objects, standardized by the International Organization for Standardization (ISO). DOIs are an implementation of the Handle System; they also fit within the URI system (Uniform Resource Identifier). They are widely used to identify academic, professional, and government information, such as journal articles, research reports, data sets, and official publications. DOIs have also been used to identify other types of information resources, such as commercial videos. A DOI aims to resolve to its target, the information object to which the DOI refers. This is achieved by binding the DOI to metadata about the object, such as a URL where the object is located. Thus, by being actionable and interoperable, a DOI differs from ISBNs or ISRCs which are identifiers only. The DOI system uses the indecs Content Model for representing metadata. The DOI for a document remains fixed over th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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