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GroundBIRD
GroundBIRD is an experiment to observe the cosmic microwave background at 145 and 220GHz. It aims to observe the B-mode polarisation signal from inflation in the early universe. It is located at Teide Observatory, on the island of Tenerife in the Canary Islands. Scientific goals The telescope was constructed to measure the B-mode signal in the polarisation of the Cosmic Microwave Background (CMB), in order to look for evidence of cosmic inflation in the early universe. It aims to observe the reionization bump at l<20 and the recombination peak around . The name 'GroundBIRD' indicates that the telescope is ground-based, while BIRD stands for B-mode Imaging Radiation Detector. It is related to the future, similarly-named, LiteBIRD CMB satellite. Telescope [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teide Observatory
Teide Observatory ( es, Observatorio del Teide), IAU code 954, is an astronomical observatory on Mount Teide at , located on Tenerife, Spain. It has been operated by the Instituto de Astrofísica de Canarias since its inauguration in 1964. It became one of the first major international observatories, attracting telescopes from different countries around the world because of the good astronomical seeing conditions. Later the emphasis for optical telescopes shifted more towards Roque de los Muchachos Observatory on La Palma. Telescopes Solar telescopes *Solar Vacuum Tower Telescope (VTT): 70 cm diameter. Operated by the Kiepenheuer Institute of Solar Physics, Freiburg (Germany). Installed in 1989. *THEMIS Solar Telescope: 90 cm diameter, built 1996, operated by Italy and France. *GREGOR Solar Telescope: 1.5 m, operated by a Germany, German consortium. In operation since May 2012. *A node of the Birmingham Solar Oscillations Network (BiSON), operated by the Universit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmic Microwave Background
In Big Bang cosmology the cosmic microwave background (CMB, CMBR) is electromagnetic radiation that is a remnant from an early stage of the universe, also known as "relic radiation". The CMB is faint cosmic background radiation filling all space. It is an important source of data on the early universe because it is the oldest electromagnetic radiation in the universe, dating to the epoch of recombination when the first atoms were formed. With a traditional optical telescope, the space between stars and galaxies (the background) is completely dark (see: Olbers' paradox). However, a sufficiently sensitive radio telescope shows a faint background brightness, or glow, almost uniform, that is not associated with any star, galaxy, or other object. This glow is strongest in the microwave region of the radio spectrum. The accidental discovery of the CMB in 1965 by American radio astronomers Arno Penzias and Robert Wilson was the culmination of work initiated in the 1940s, and ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FPGA
A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by a customer or a designer after manufacturinghence the term ''Field-programmability, field-programmable''. The FPGA configuration is generally specified using a hardware description language (HDL), similar to that used for an Application-Specific Integrated Circuit, application-specific integrated circuit (ASIC). Circuit diagrams were previously used to specify the configuration, but this is increasingly rare due to the advent of electronic design automation tools. FPGAs contain an array of programmable logic device, programmable logic blocks, and a hierarchy of reconfigurable interconnects allowing blocks to be wired together. Logic blocks can be configured to perform complex combinational logic, combinational functions, or act as simple logic gates like AND gate, AND and XOR gate, XOR. In most FPGAs, logic blocks also include Memory cell (computing), memory elements, which may be simp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korea Astronomy And Space Science Institute
The Korea Astronomy and Space Science Institute (KASI) is the national research institute in astronomy and space science of South Korea funded by the South Korean Government. Its headquarters are located in Daejeon, in the Daedeok Science Town. Research at KASI covers main areas of modern astronomy, including Optical Astronomy, Radio Astronomy, Space Science Space is the boundless Three-dimensional space, three-dimensional extent in which Physical body, objects and events have relative position (geometry), position and direction (geometry), direction. In classical physics, physical space is often ..., and Theoretical Astronomy. See also * Bohyunsan Optical Astronomy Observatory (BOAO) * Korean VLBI Network (KVN) * University of Science and Technology (South Korea) References External links * KASI official websiteKoreanEnglish * BOAOKorean * TRAOKorean {{authority control Daejeon Government agencies of South Korea Space science organizations Astronomy i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Graduate University For Advanced Studies
is one of the national universities of Japan, headquartered in Shonan Village (湘南国際村) in the town of Hayama in Kanagawa Prefecture. , as it is generally called in its abbreviated form, was established in 1988, with Dr. Saburo Nagakura as its president. SOKENDAI is the first national university in Japan having offered exclusively graduate programs. Graduate students are trained at affiliated research institutes distributed around Japan and the world. It has both five-year doctoral programs for students with a bachelor's degree and three-year programs for those with a master's degree. Objective SOKENDAI is a National Graduate University of Japan, conforming to the guidelines stipulated under the provisions of Japan's National University Corporation Act. The National Graduate Universities' objective is to anticipate the future, nurture specialized researchers with broader visions, and contribute to the public benefit. Schools SOKENDAI operates as a distributed research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delft University Of Technology
Delft University of Technology ( nl, Technische Universiteit Delft), also known as TU Delft, is the oldest and largest Dutch public technical university, located in Delft, Netherlands. As of 2022 it is ranked by QS World University Rankings among the top 10 engineering and technology universities in the world. In the fields of architecture and civil engineering, it was ranked 2nd in the world, after MIT (Massachusetts Institute of Technology). With eight faculties and numerous research institutes, it has more than 26,000 students (undergraduate and postgraduate) and 6,000 employees (teaching, research, support and management staff). The university was established on 8 January 1842 by William II of the Netherlands as a Royal Academy, with the primary purpose of training civil servants for work in the Dutch East Indies. The school expanded its research and education curriculum over time, becoming a polytechnic school in 1864 and an institute of technology (making it a full-fled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Ambassador To Spain
Japanese may refer to: * Something from or related to Japan, an island country in East Asia * Japanese language, spoken mainly in Japan * Japanese people, the ethnic group that identifies with Japan through ancestry or culture ** Japanese diaspora, Japanese emigrants and their descendants around the world * Japanese citizens, nationals of Japan under Japanese nationality law ** Foreign-born Japanese, naturalized citizens of Japan * Japanese writing system, consisting of kanji and kana * Japanese cuisine, the food and food culture of Japan See also * List of Japanese people * * Japonica (other) * Japonicum * Japonicus This list of Latin and Greek words commonly used in systematic names is intended to help those unfamiliar with classical languages to understand and remember the scientific names of organisms. The binomial nomenclature used for animals and plants i ... * Japanese studies {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kenji Hiramatsu
Kenji may refer to: * Kenji (given name), a masculine Japanese given name, and list of people & characters with this name * Kenji (era), a Japanese era spanned from 1275 to 1278 * ''Kenji'' (manga) (拳児), a 1980s manga by Matsuda Ryuchi * "Kenji" (song), a song on Fort Minor's 2005 album ''The Rising Tied'' *'' Gyakuten Kenji'' or ''Ace Attorney Investigations: Miles Edgeworth'', a 2009 adventure video game *J. Kenji López-Alt James Kenji López-Alt (born October 31, 1979) is an American chef and food writer. His first book, '' The Food Lab: Better Home Cooking Through Science'', became a critical and commercial success, charting on the ''New York Times'' Bestseller ..., an American chef and food writer See also * Genji (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atacama Desert
The Atacama Desert ( es, Desierto de Atacama) is a desert plateau in South America covering a 1,600 km (990 mi) strip of land on the Pacific coast, west of the Andes Mountains. The Atacama Desert is the driest nonpolar desert in the world, and the second driest overall, just behind some very specific spots within the McMurdo Dry Valleys as well as the only hot true desert to receive less precipitation than the polar deserts, and the largest fog desert in the world. Both regions have been used as experimentation sites on Earth for Mars expedition simulations. The Atacama Desert occupies , or if the barren lower slopes of the Andes are included. Most of the desert is composed of stony terrain, salt lakes (''salares''), sand, and felsic lava that flows towards the Andes. The desert owes its extreme aridity to a constant temperature inversion due to the cool north-flowing Humboldt ocean current and to the presence of the strong Pacific anticyclone. The most arid reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FWHM
In a distribution, full width at half maximum (FWHM) is the difference between the two values of the independent variable at which the dependent variable is equal to half of its maximum value. In other words, it is the width of a spectrum curve measured between those points on the ''y''-axis which are half the maximum amplitude. Half width at half maximum (HWHM) is half of the FWHM if the function is symmetric. The term full duration at half maximum (FDHM) is preferred when the independent variable is time. FWHM is applied to such phenomena as the duration of pulse waveforms and the spectral width of sources used for optical communications and the resolution of spectrometers. The convention of "width" meaning "half maximum" is also widely used in signal processing to define bandwidth as "width of frequency range where less than half the signal's power is attenuated", i.e., the power is at least half the maximum. In signal processing terms, this is at most −3 dB of attenua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Field Of View
The field of view (FoV) is the extent of the observable world that is seen at any given moment. In the case of optical instruments or sensors it is a solid angle through which a detector is sensitive to electromagnetic radiation. Humans and animals In the context of human and primate vision, the term "field of view" is typically only used in the sense of a restriction to what is visible by external apparatus, like when wearing spectacles or virtual reality goggles. Note that eye movements are allowed in the definition but do not change the field of view when understood this way. If the analogy of the eye's retina working as a sensor is drawn upon, the corresponding concept in human (and much of animal vision) is the visual field. It is defined as "the number of degrees of visual angle during stable fixation of the eyes".Strasburger, Hans; Pöppel, Ernst (2002). Visual Field. In G. Adelman & B.H. Smith (Eds): ''Encyclopedia of Neuroscience''; 3rd edition, on CD-ROM. El ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
