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SMD Gibraléon
SMD or smd may refer to: Organizations * Science Mission Directorate, a body within NASA * Sharjah Museums Department, former name of the Sharjah Museums Authority * Soil Machine Dynamics, an underwater vehicles company founded by Alan Reece Music * Simian Mobile Disco, an English electronic music duo * '' Slipmatt Dubs'' (born 1967), Breakbeat hardcore series * '' Sacræ Musicæ Doctor'' (Doctor of Sacred Music) Science and technology * Standardized mean difference, a basis for effect size in statistics * Sauter mean diameter, in fluid dynamics * , audio release format developed in Brazil * Service Mapping Description, a proposed standard for describing web services * Stereotypic movement disorder, a motor disorder * Storage Module Device, 1970s CDC disk drives * Surface-mounted device, an electronic component used in surface-mount technology * SMD LED module, a common component of an LED lamp Other uses * Sega Mega Drive, a fourth-generation video game console * Single-mem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science Mission Directorate
The Science Mission Directorate (SMD) of the National Aeronautics and Space Administration (NASA) is one of the six directorates that constitute NASA. Its responsibility is to define and direct research into scientific questions of interest, sharing data acquired by NASA missions with the broader scientific community, sponsoring scientific research, and developing satellites and spacecraft in conjunction with other directorates and with partner organizations for scientific missions. The Science Mission Directorate also sponsors research that both enables, and is enabled by, NASA's exploration activities. The SMD portfolio is contributing to NASA's achievement of the Vision for Space Exploration by striving to: *Understand the history of Mars and the formation of the Solar System. By understanding the formation of diverse terrestrial planets (with atmospheres) in the Solar System, researchers learn more about Earth's future and the most promising opportunities for habitation beyo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stereotypic Movement Disorder
Stereotypic movement disorder (SMD) is a motor disorder with onset in childhood involving restrictive and/or repetitive, nonfunctional motor behavior (e.g., hand waving or head banging), that markedly interferes with normal activities or results in bodily injury. While stereotypic movements are common in infancy and early childhood, a diagnosis of SMD is made only when such behaviors are prolonged, intense, and cause significant impairment. The diagnosis requires that the behavior in question must not be due to the direct effects of a substance, autism, or another medical condition. The cause of this disorder is not known. However, current research suggests that dysfunction in corticostriatal-thalamo-cortical (CSTC) circuits and imbalances between the direct and indirect pathways of the basal ganglia may play a role in its development. Both environmental and genetic factors have been proposed as potential risk factors. Environmental factors include limited social interaction, ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SMD High School
S. M. Dedicated High School (commonly known as SMD High School and SMD School) is a private K-12, co-educational school located in Srinagar city at Munawar-abad, India. History SMD School is named after its founder and Chairman Sayeed Mustafa Danishgah. It was established in 1969. Organisation This is a private, co-educational school that uses English as the medium of education. SMD was formerly a high school educating from nursery to tenth grade but is now a higher secondary serving students up to 12th grade. The school has over 500 students. Houses The student body is divided into four houses, represented by colours. Each student is allotted one of these houses upon entry into school. The four houses are: * Green * Pink * Yellow * Sky Blue The houses compete against each other in academic and sporting disciplines, each contributing towards house points. The house with maximum points is declared the House Of The Year. Other functions The school is used as a polling station ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-member District
A single-member district or constituency is an electoral district represented by a single officeholder. It contrasts with a multi-member district, which is represented by multiple officeholders. In some countries, such as Australia and India, members of the lower house of parliament are elected from single-member districts, while members of the upper house are elected from multi-member districts. In some other countries, such as Singapore, members of parliament can be elected from either single-member or multi-member districts. History in the United States The United States Constitution, ratified in 1789, states: "The House of Representatives shall be composed of Members chosen every second Year by the People of the several States...Representatives...shall be apportioned among the several States which may be included within this Union, according to their respective Numbers." In other words, the Constitution specifies that each state will be apportioned a number of representa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sega Mega Drive
The Sega Genesis, known as the outside North America, is a 16-bit Fourth generation of video game consoles, fourth generation home video game console developed and sold by Sega. It was Sega's third console and the successor to the Master System. Sega released it in 1988 in Japan as the Mega Drive, and in 1989 in North America as the Genesis. In 1990, it was distributed as the Mega Drive by Virgin Mastertronic in Europe, Ozisoft in Australasia, and Tectoy in Brazil. In South Korea, it was distributed by Samsung Electronics as the Super Gam*Boy and later the Super Aladdin Boy. Designed by an Research and development, R&D team supervised by Hideki Sato and Masami Ishikawa, the Genesis was adapted from Sega's Sega System 16, System 16 arcade board, centered on a Motorola 68000 processor as the central processing unit, CPU, a Zilog Z80 as a sound controller, and a video system supporting hardware Sprite (computer graphics), sprites, Tile-based video game, tiles, and scrolling. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SMD LED
The light from white LED lamps and LED strip lights is usually provided by industry standard surface-mounted device LEDs (SMD LEDs).SMD-LED-Module-Definitiowhat is a SMD LED Modulehttps://www.optonicaled.at] Non-SMD types of LED lighting also exist, such as COB (chip on board) and MCOB (multi-COB). Surface-mounted device Surface-mount technology (SMT), originally called planar mounting, is a method in which the electrical components are mounted directly onto the surface of a printed circuit board (PCB). An electrical component mounted in this manner is referred ... LED modules are described by the dimensions of the LED package. A single multicolor module may have three individual LEDs within that package, one each of red, green and blue, to allow many colors or shades of white to be selected, by varying the brightness of the individual LEDs. LED brightness may be increased by using a higher driving current, at the cost of reducing the device's lifespan. References {{r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface-mount Technology
Surface-mount technology (SMT), originally called planar mounting, is a method in which the electrical components are mounted directly onto the surface of a printed circuit board (PCB). An electrical component mounted in this manner is referred to as a surface-mount device (SMD). In industry, this approach has largely replaced through-hole technology construction method of fitting components, in large part because SMT allows for increased manufacturing automation which reduces cost and improves quality. It also allows for more components to fit on a given area of substrate. Both technologies can be used on the same board, with the through-hole technology often used for components not suitable for surface mounting such as large transformers and heat-sinked power semiconductors. An SMT component is usually smaller than its through-hole counterpart because it has either smaller leads or no leads at all. It may have short pins or leads of various styles, flat contacts, a matrix of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Storage Module Device
Storage Module Device (SMD) is a family of storage devices (hard disk drives) that were first shipped by Control Data Corporation in December 1973 as the CDC 9760 40 megabyte, MB (unformatted) storage module disk drive.Control Data Corporation Newsletter, Summer 1977 Edition, p. 6 The CDC 9762 80 MB variant was announced in June 1974 and the CDC 9764 150 MB and the CDC 9766 300 MB variants were announced in 1975 (all capacities unformatted). A non-removable media variant family of 12, 24 and 48 MB capacity, the MMD, was then announced in 1976. This family's interface, SMD, derived from the earlier Digital Equipment Corporation, Digital RP0x interface, was documented as ANSI Standard X3.91M - 1982, Storage Module Interfaces with Extensions for Enhanced Storage Module Interfaces. The SMD interface is based upon a definition of two flat interface cables ("A" control and "B" data) which run from the disk drive to a hard disk drive interface and then to a computer. This interface allo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Service Mapping Description
Service Mapping Description (SMD) is a proposed standard for describing, in a machine-readable JSON format, the web services available at a particular endpoint. The goal is similar in principle to WSDL The Web Services Description Language (WSDL ) is an XML-based interface description language that is used for describing the functionality offered by a web service. The acronym is also used for any specific WSDL description of a web service (also .... External links Service Mapping Description Proposal Web service specifications {{web-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharjah Museums Department
The Sharjah Museums Authority (SMA), formerly named Sharjah Museums Department (SMD), is a government agency in Sharjah, United Arab Emirates. The organization was established by Dr. Sheikh Sultan bin Muhammad Al-Qasimi in 2006. The authority's objective is to promote the emirate's legacy of arts, heritage and culture. It is a part of the Global Cultural Districts Network. SMA oversees a number of museums and heritage sites in the Emirate of Sharjah, including: * Al Eslah School Museum * Al Mahatta Museum * Bait Al Naboodah * Bait Skeikh Saeed Bin Hamad Al Qasimi * Hisn Khor Fakkan * Resistance Monument * Sharjah Aquarium * Sharjah Archaeology Museum * Sharjah Art Museum * Sharjah Calligraphy Museum * Sharjah Discovery Centre * Sharjah Fort (Al Hisn) * Sharjah Heritage Museum * Sharjah Maritime Museum * Sharjah Museum of Islamic Civilization * Sharjah Science Museum See also * Heart of Sharjah * List of museums in the United Arab Emirates The following museums are loc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauter Mean Diameter
In fluid dynamics, Sauter mean diameter (SMD) is an average measure of particle size. It was originally developed by German scientist Josef Sauter in the late 1920s. It is defined as the diameter of a sphere that has the same volume/surface area ratio as a particle of interest. Several methods have been devised to obtain a good estimate of the SMD. Definition The Sauter diameter (''SD'', also denoted ''D'' ,2or ''d''32) for a given particle is defined as: :SD = \frac where ''d''''s'' is the so-called ''surface diameter'' and ''d''''v'' is the ''volume diameter'', defined as: :d_s = \sqrt :d_v = \left(\frac\right)^, The quantities ''A''''p'' and ''V''''p'' are the ordinary surface area and volume of the particle, respectively. The equation may be simplified further as: :SD = 6\frac. This is usually taken as the mean of several measurements ''n'', to obtain the Sauter mean diameter (SMD): :SMD = \sum_i^n SD_i / n This provides intrinsic data that help determine the part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Effect Size
In statistics, an effect size is a value measuring the strength of the relationship between two variables in a population, or a sample-based estimate of that quantity. It can refer to the value of a statistic calculated from a sample of data, the value of one parameter for a hypothetical population, or to the equation that operationalizes how statistics or parameters lead to the effect size value. Examples of effect sizes include the correlation between two variables, the regression coefficient in a regression, the mean difference, or the risk of a particular event (such as a heart attack) happening. Effect sizes are a complement tool for statistical hypothesis testing, and play an important role in power analyses to assess the sample size required for new experiments. Effect size are fundamental in meta-analyses which aim to provide the combined effect size based on data from multiple studies. The cluster of data-analysis methods concerning effect sizes is referred to as estima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
