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GDD HF , a unit for measuring climatic warmth ...
GDD may mean: *Game design document, a design document specific to video games. *Gaseous detection device, a technology used with some electron microscopes and similar instruments *Geographically Distributed Development *Glaucoma drainage device *Global Data Dictionary *Global Drug Development *Global developmental delay, a childhood medical disorder *Goal-Directed Design, a user interface design method developed by Alan Cooper *Group delay dispersion (Group velocity dispersion), effect of a medium on an optical signal *Google Developer Day, Google promotional events for developers *''Great Dragon's Dale'', a Russian-language video gaming magazine *Green Degree Directory *Growing degree-day Growing degree days (GDD), also called growing degree units (GDUs), are a heuristic tool in phenology. GDD are a measure of heat accumulation used by horticulturists, gardeners, and farmers to predict plant and animal development rates such as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Game Design Document
A game design document (often abbreviated GDD) is a highly descriptive living software design document of the design for a video game. Oxland 2004, p. 240 Brathwaite, Schreiber 2009, p. 14 A GDD is created and edited by the development team and it is primarily used in the video game industry to organize efforts within a development team. The document is created by the development team as result of collaboration between their designers, artists and programmers as a guiding vision which is used throughout the game development process. When a game is commissioned by a game publisher to the development team, the document must be created by the development team and it is often attached to the agreement between publisher and developer; the developer has to adhere to the GDD during game development process. Life cycle Game developers may produce the game design document in the pre-production stage of game development—prior to or after a pitch. Before a pitch, the document may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaseous Detection Device
The gaseous detection device (GDD) is a method and apparatus for the detection of signals in the gaseous environment of an environmental scanning electron microscope (ESEM) and all scanned beam type of instruments that allow a minimum gas pressure for the detector to operate. History In the course of development of the ESEM, the detectors previously employed in the vacuum of a scanning electron microscope (SEM) had to be adapted for operation in gaseous conditions. The backscattered electron (BSE) detector was adapted by an appropriate geometry in accordance with the requirements for optimum electron beam transmission, BSE distribution and light guide transmission. However, the corresponding secondary electron (SE) detector ( Everhart-Thornley detector) could not be adapted, because the high potential required would cause a catastrophic breakdown even with moderate increase of pressure, such as low vacuum. Danilatos (1983) overcame this problem by using the environmental gas itsel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geographically Distributed Development
Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and phenomena of Earth. The first recorded use of the word γεωγραφία was as a title of a book by Greek scholar Eratosthenes (276–194 BC). Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science. One such concept, the first law of geography, proposed by Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." Geography has been called "the world discipline" and "the bridge between the human and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaucoma Drainage Device
Glaucoma is a group of eye diseases that result in damage to the optic nerve (or retina) and cause vision loss. The most common type is open-angle (wide angle, chronic simple) glaucoma, in which the drainage angle for fluid within the eye remains open, with less common types including closed-angle (narrow angle, acute congestive) glaucoma and normal-tension glaucoma. Open-angle glaucoma develops slowly over time and there is no pain. Peripheral vision may begin to decrease, followed by central vision, resulting in blindness if not treated. Closed-angle glaucoma can present gradually or suddenly. The sudden presentation may involve severe eye pain, blurred vision, mid-dilated pupil, redness of the eye, and nausea. Vision loss from glaucoma, once it has occurred, is permanent. Eyes affected by glaucoma are referred to as being glaucomatous. Risk factors for glaucoma include increasing age, high pressure in the eye, a family history of glaucoma, and use of steroid medication. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Data Dictionary
Global means of or referring to a globe and may also refer to: Entertainment * ''Global'' (Paul van Dyk album), 2003 * ''Global'' (Bunji Garlin album), 2007 * ''Global'' (Humanoid album), 1989 * ''Global'' (Todd Rundgren album), 2015 * Bruno J. Global, a character in the anime series ''The Super Dimension Fortress Macross'' Companies and brands Television * Global Television Network, in Canada ** Global BC, on-air brand of CHAN-TV, a television station in Vancouver, British Columbia, Canada ** Global Okanagan, on-air brand of CHBC-TV, a television station in Kelowna, British Columbia, Canada ** Global Toronto, a television station in Toronto ** Global Edmonton ** Global Calgary ** Global Montreal ** Global Maritimes ** Canwest Global, former parent company of Global Television Network * Global TV (Venezuela), a regional channel in Venezuela Other industries * Global (cutlery), a Japanese brand * Global Aviation Holdings, the parent company of World Airways, Inc., and North ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Drug Development
Global means of or referring to a globe and may also refer to: Entertainment * ''Global'' (Paul van Dyk album), 2003 * ''Global'' (Bunji Garlin album), 2007 * ''Global'' (Humanoid album), 1989 * ''Global'' (Todd Rundgren album), 2015 * Bruno J. Global, a character in the anime series ''The Super Dimension Fortress Macross'' Companies and brands Television * Global Television Network, in Canada ** Global BC, on-air brand of CHAN-TV, a television station in Vancouver, British Columbia, Canada ** Global Okanagan, on-air brand of CHBC-TV, a television station in Kelowna, British Columbia, Canada ** Global Toronto, a television station in Toronto ** Global Edmonton ** Global Calgary ** Global Montreal ** Global Maritimes ** Canwest Global, former parent company of Global Television Network * Global TV (Venezuela), a regional channel in Venezuela Other industries * Global (cutlery), a Japanese brand * Global Aviation Holdings, the parent company of World Airways, Inc., and North ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Developmental Delay
Global developmental delay is an umbrella term used when children are significantly delayed in their cognitive development, cognitive and developmental biology, physical development. It can be diagnosed when a child is delayed in one or more milestones, categorised into motor skills, speech delay, speech, cognitive skills, and social and emotional development. There is usually a specific condition which causes this delay, such as Fragile X syndrome or other chromosome abnormality, chromosomal abnormalities. However, it is sometimes difficult to identify this underlying condition. Other terms associated with this condition are failure to thrive (which focuses on lack of weight gain and physical development), intellectual disability (which focuses on intellectual deficits and the changes they cause to development) and developmental disability (which can refer to both intellectual and physical disability altering development). Causes Developmental delay can be caused by learning disab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alan Cooper
Alan Cooper (born June 3, 1952) is an American software designer and programmer. Widely recognized as the "Father of Visual Basic", Cooper is also known for his books ''About Face: The Essentials of Interaction Design'' and ''The Inmates Are Running the Asylum: Why High-Tech Products Drive Us Crazy and How to Restore the Sanity''. As founder of Cooper, a leading interaction design consultancy, he created the Goal-Directed design methodology and pioneered the use of personas as practical interaction design tools to create high-tech products. On April 28, 2017, Alan was inducted into the Computer History Museum's Hall of Fellows "for his invention of the visual development environment in Visual BASIC, and for his pioneering work in establishing the field of interaction design and its fundamental tools." Biography Early life Alan Cooper grew up in Marin County, California, United States where he attended the College of Marin, studying architecture. He learned programming and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Group Velocity Dispersion
In optics, group velocity dispersion (GVD) is a characteristic of a dispersive medium, used most often to determine how the medium will affect the duration of an optical pulse traveling through it. Formally, GVD is defined as the derivative of the inverse of group velocity of light in a material with respect to angular frequency, :\textrm(\omega_0) \equiv \frac \left( \frac \right)_, where \omega and \omega_0 are angular frequencies, and the group velocity v_g(\omega) is defined as v_g(\omega) \equiv \partial \omega / \partial k. The units of group velocity dispersion are imesup>2/ istance often expressed in fs2/mm. Equivalently, group velocity dispersion can be defined in terms of the medium-dependent wave vector k(\omega) according to :\textrm(\omega_0) \equiv \left( \frac\right)_, or in terms of the refractive index n(\omega) according to :\textrm(\omega_0) \equiv \frac \left(\frac\right)_ + \frac\left( \frac\right)_. Applications Group velocity dispersion is most commonly u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google Developer Day
Google Developer Day events were one-day web developer-focused gatherings around the world held annually by Google. They include seminars and codelabs focused on building of web, mobile, and enterprise applications with Google and open web technologies such as Android, HTML5, Chrome, App Engine, Google Web Toolkit and give participants an excellent chance to learn about Google developer products as well as meet the engineers who work on them. Occurrences * 2007: May - June in Mountain View, California, USA, Sao Paulo, Brazil, London, United Kingdom, Paris, France, Madrid, Spain, Hamburg, Germany, Moscow, Russia, Tokyo, Japan, Sydney, Australia, and Beijing, China. * 2008: Jun 10 in Yokohama, Japan, Jun 12 in Beijing, China, Jun 14 in Taipei, Taiwan, Jun 18 in Sydney, Australia, Jun 23 in Mexico City, Mexico, Jun 27 in Sao Paulo, Brazil, Sep 16 in London, England, Sep 18 in Paris, France, Sep 23 in Munich, Germany, Sep 25 in Madrid, Spain, Oct 18 in Bangalore, India, O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Dragon's Dale
''Velikiy Drakon'' ( rus, Великий Dракон lit. "Great Dragon") is a defunct Russian video game magazine initially launched as ''Video-Ace Dendy'' ( rus, Видео-Асс Dendy) in 1993. The magazine was Russia's first wholly video-game-oriented magazine, and it was launched in order to meet the needs of Russian gamers, the majority of whom were just beginning to experience home console games as a medium as a result of the 1992 introduction of the Dendy home console. Aimed at young gamers,Servianov, Sergei. Games Of The World: Chasing the Gorbunok'. Hardcore Gaming 101. 2005. and characterized by its raw and artless coverage of illegal pirate games alongside legitimate (or at least legally grey) import games, ''Video-Ace Dendy'' covered all console systems that had penetrated into the Russian market until mid-1995, when the magazine split to form ''Velikiy Drakon'' which would cover only 16-bit and more advanced consoles. ''Video-Ace Dendy'' was phased out of publicat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Degree Directory
Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage. Several minerals have a green color, including the emerald, which is colored green by its chromium content. During post-classical and early modern Europe, green was the color commonly associated with wealth, merchants, bankers, and the gentry, while red w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
