|
SDI Media Denmark
SDI may refer to: Arts and entertainment * ''SDI'' (arcade game), 1987, by Sega * ''S.D.I.'' (video game), 1986, by Cinemaware Companies and organizations * Samsung SDI, battery manufacturer * Scottish Development International * Scuba Diving International * SDI Media Group, providing subtitling and language services * SDI Presence, US IT consultancy * SDI Technologies, a consumer electronics manufacturer, New Jersey, U.S.A. * Service Desk Institute, for computer help desk staff * Slum Dwellers International * (Italian Democratic Socialists), a political party * Software Design Inc. * Spiritual Directors International, supporting spiritual direction * Steel Dynamics, Inc., a steel producer, Indiana, US.A. In science and technology Computing and telecommunications * Serial data input in the Serial Peripheral Interface bus * Serial digital interface for sending video signals over coaxial cable * Single document interface, a style of graphical user interface * Softwar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SDI (arcade Game)
''SDI - Strategic Defense Initiative'', or simply titled ''SDI'' and sometimes known as ''Global Defense'', is a 1987 horizontally scrolling shooter produced and released internationally in arcades by Sega. It was later ported to home computers and game consoles, some by other companies. Players control a satellite and must destroy enemies by moving a crosshair over them and firing the satellite's weapons. Gameplay Players control a Strategic Defense Initiative satellite orbiting the Earth and must destroy enemy missiles/satellites with its weapons, and when activated the satellite's weapon systems fire at the crosshair present onscreen during play. The arcade version features a joystick to control the satellite and a trackball to control the crosshair. Home computer versions use different control schemes, such as depressing the fire button to control the crosshair, alternating between controlling the satellite and its weapons. It is also possible to use a joystick and mous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saidor Airport
Saidor Airport is an airport in Madang Province, Papua New Guinea. . It is a general aviation airport located at the coast near Saidor, near Saul Point with Dekys Bay to the east and the Bismarck Sea to the north. History A pre-World War II airfield, after the US Army landing at Saidor on 2 January 1944 to liberate the area from the Japanese, construction of a single runway running roughly ESE to WNW began. Initially, the airfield was only usable by light Liaison planes, later it was expanded to include extensive taxiways and revetments on the north and south side of the runway, and an apron at each edge of the runway. At the time of construction, Saidor was the most forward airfield for Allied aircraft striking Japanese to the west. Many planes refueled and made emergency landings at the airfield. Major USAAF units assigned * 309th Bombardment Wing (1 March – 28 July 1944) (Headquarters) * 417th Bombardment Group (8 February – 9 September 1944) : Headquarters, 672d, 673d, 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suction Diesel Injection
The SDI engine is a design of naturally aspirated (NA) direct injection diesel engine developed and produced by Volkswagen Group for use in cars and vans, along with marine engine (Volkswagen Marine) and Volkswagen Industrial Motor applications. The SDI brand name (derived from "Suction Diesel Injection" or "Suction Diesel Direct Injection", the latter a literal translation of the german: Saugdiesel-Direkteinspritzung) was adopted in order to differentiate between earlier and less efficient indirect injection engines, called SD or "Suction Diesel", which were also produced by Volkswagen Group. SDI engines are only produced in inline or straight engine configurations; and as they originate from a German manufacture, are designated as either R4 or R5, taken from the german: Reihenmotor. They are available in various displacements (from 1.7 to 2.5 litres), in inline-four (R4 or I4) and inline-five (R5 or I5), in various states of tune, depending on intended application. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drip Irrigation
Drip irrigation or trickle irrigation is a type of micro-irrigation system that has the potential to save water and nutrients by allowing water to drip slowly to the roots of plants, either from above the soil surface or buried below the surface. The goal is to place water directly into the rhizosphere, root zone and minimize evaporation. Drip irrigation systems distribute water through a network of valves, pipes, tubing, and emitters. Depending on how well designed, installed, maintained, and operated it is, a drip irrigation system can be more efficient than other types of irrigation systems, such as surface irrigation or sprinkler irrigation. History Ancient China Primitive drip irrigation has been used since ancient times. ''Fan Shengzhi shu'', written in China during the first century BCE, describes the use of buried, unglazed clay pots filled with water, sometimes referred to as Olla#Use in irrigation, Ollas, as a means of irrigation. Modern development Germany: subsurface ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stand Density Index
Stand density index (SDI; also known as Reineke's Stand Density Index after its founder) is a measure of the stocking of a stand of trees based on the number of trees per unit area and diameter at breast height (DBH) of the tree of average basal area, also known as the quadratic mean diameter. It may also be defined as the degree of crowding within stocked areas, using various growing space ratios based on crown length or diameter, tree height or diameter, and spacing. Stand density index is usually well correlated with stand volume and growth, and several variable-density yield tables have been created using it. Basal area, however, is usually satisfactory as a measure of stand density index and because it is easier to calculate it is usually preferred over SDI. Stand density index is also the basis for Stand density management diagrams. Use It may also be defined as the degree of crowding within stocked areas, using various growing space ratios based on crown length or diameter, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smoke-developed Index
Smoke-developed index (abbreviated SDI) is a measure of the concentration of smoke a material emits as it burns. Like the Flame Spread Index, it is based on an arbitrary scale in which asbestos-cement board has a value of 0, and red oak wood has 100. The SDI is measured using a horizontal test specimen, according to the Steiner tunnel test protocol. The ASTM standard E84 defines a standard test method for surface flame spread and smoke density measurements. A smoke-developed index of less than 450 is required by IBC section 803.1 at interior walls and ceilings for all surface materials except trim. See also *Steiner tunnel test *Limiting oxygen index The limiting oxygen index (LOI) is the minimum concentration of oxygen, expressed as a percentage, that will support combustion of a polymer. It is measured by passing a mixture of oxygen and nitrogen over a burning specimen, and reducing the oxygen ... References {{reflist Fire test standards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silt Density Index
The silt density index is a measure for the fouling capacity of water in reverse osmosis systems. The test measures the rate at which a 0.45-micrometre The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Unit ... filter is plugged when subjected to a constant water pressure of . The SDI gives the percent drop per minute in the flow rate of the water through the filter, averaged over a period of time such as 15 minutes. Typically, spiral-wound reverse osmosis systems will need an SDI less than 5, and hollow fiber reverse osmosis systems will need an SDI less than 3. In these kinds of systems, deep-well waters (with a typical SDI of 3) could be used straight from the source. If fed from surface waters (with a typical SDI greater than 6), the water will need to be filtered before use. Seawater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selective Dissemination Of Information
Selective dissemination of information ("SDI") was originally a phrase related to library and information science. SDI refers to tools and resources used to keep a user informed of new resources on specified topics, including the current-awareness services used to inform about new library acquisitions.{{cite web, url=https://www.britannica.com/topic/library/User-services#ref62059, title=Library: User services, author=Britannica SDI services pre-date the World Wide Web, and the term itself is somewhat dated. Contemporary analogous systems for SDI services include alerts, current awareness tools or trackers. These systems provide automated searches that inform the user of the availability of new resources meeting the user's specified keywords and search parameters. Alerts can be received a number of ways, including email, RSS feeds, voice mail, Instant messaging, and text messaging. Selective dissemination of information was a concept first described by Hans Peter Luhn of IBM in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfadimidine
Sulfadimidine or sulfamethazine is a sulfonamide antibacterial. There are non-standardized abbreviations for it as "sulfadimidine" (abbreviated SDI and more commonly but less reliably SDD) and as "sulfamethazine" (abbreviated SMT and more commonly but less reliably SMZ). Other names include sulfadimerazine, sulfadimezine, and sulphadimethylpyrimidine. References Further reading * ChemDB"Sulfamethazine" ''ChemDB'', National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH) * * PubChem"Sulfamethazine - Substance Summary" ''PubChem'', National Center for Biotechnology Information (NCBI), National Library of Medicine (NLM), National Institutes of Health The National Institutes of Health, commonly referred to as NIH (with each letter pronounced individually), is the primary agency of the United States government responsible for biomedical and public health research. It was founded in the late ... (NIH) Sulfonamide antibiotics P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
