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PBR
PBR may refer to: Science and technology * Passive bistatic radar * Partition boot record * Pebble bed reactor, a type of nuclear reactor * Peripheral benzodiazepine receptor, another name for translocator protein * Phosphorus bromide * Photobioreactor * Policy-based routing * Pusey-Barrett-Rudolph theorem about the reality of quantum states * Physically based rendering, a method used in computer graphics * Precariously balanced rock, another name for a balancing rock Commerce * Petrobras, Brazilian oil company, NYSE code * Payment by Results * Pre-Budget Report, one of the two economic forecasts that HM Treasury is required to deliver to the UK Parliament each year Military * Patrol Boat, River, a US Navy designation * Plastic baton round, a type of non-lethal projectile Transport * Potters Bar railway station, Hertfordshire, England, National Rail station code * Puffing Billy Railway, tourist railway in Melbourne, Australia Other * Pabst Blue Ribbon, an American beer brand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patrol Boat, River
Patrol Boat, Riverine, or PBR, is the United States Navy designation for a small rigid- hulled patrol boat used in the Vietnam War from March 1966 until 1975. They were deployed in a force that grew to 250 boats, the most common craft in the River Patrol Force, Task Force 116, and were used to stop and search river traffic in areas such as the Mekong Delta, the Rung Sat Special Zone, the Saigon River and in I Corps, in the area assigned to Task Force Clearwater, in an attempt to disrupt weapons shipments. In this role they frequently became involved in firefights with enemy soldiers on boats and on the shore, were used to insert and extract Navy SEAL teams, and were employed by the United States Army's 458th Transportation Company, known as the 458th Sea Tigers. The PBR was replaced by the Special Operations Craft – Riverine (SOC-R) Design The PBR was a versatile boat with a fiberglass hull and water jet drive which enabled it to operate in shallow, weed-choked rivers. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physically Based Rendering
Physically based rendering (PBR) is a computer graphics approach that seeks to render images in a way that models the flow of light in the real world. Many PBR pipelines aim to achieve photorealism. Feasible and quick approximations of the bidirectional reflectance distribution function and rendering equation are of mathematical importance in this field. Photogrammetry may be used to help discover and encode accurate optical properties of materials. Shaders may be used to implement PBR principles. History Starting in the 1980s, a number of rendering researchers worked on establishing a solid theoretical basis for rendering, including physical correctness. Much of this work was done at the Cornell University Program of Computer Graphics; a 1997 paper from that lab describes the work done at Cornell in this area to that point. The phrase "Physically Based Rendering" was more widely popularized by Matt Pharr, Greg Humphreys, and Pat Hanrahan in their book of the same name from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Translocator Protein
Translocator protein (TSPO) is an 18 kDa protein mainly found on the outer mitochondrial membrane. It was first described as peripheral benzodiazepine receptor (PBR), a secondary binding site for diazepam, but subsequent research has found the receptor to be expressed throughout the body and brain. In humans, the translocator protein is encoded by the ''TSPO'' gene. It belongs to a family of tryptophan-rich sensory proteins. Regarding intramitochondrial cholesterol transport, TSPO has been proposed to interact with StAR (steroidogenic acute regulatory protein) to transport cholesterol into mitochondria, though evidence is mixed. Function In animals, TSPO (PBR) is a mitochondrial protein usually located in the outer mitochondrial membrane and characterised by its ability to bind a variety of benzodiazepine-like drugs, as well as to dicarboxylic tetrapyrrole intermediates of the haem biosynthetic pathway. TSPO has many proposed functions depending on the tissue. The most studie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photobioreactor
image:Bioreaktor quer2.jpg, Moss bioreactor, Moss photobioreactor to cultivate mosses like ''Physcomitrella patens'' at the laboratory scale A photobioreactor (PBR) refers to any cultivation system designed for growing Photoautotrophism, photoautotrophic organisms using artificial light sources or solar light to facilitate photosynthesis. PBRs are typically used to cultivate microalgae, cyanobacteria, macroalgae, and some mosses. PBRs can be open systems, such as raceway ponds, which rely upon natural sources of light and carbon dioxide. Closed PBRs are flexible systems that can be controlled to the physiological requirements of the cultured organism, resulting in optimal growth rates and purity levels. PBRs are typically used for the cultivation of bioactive compounds for biofuels, pharmaceuticals, and other industrial uses. Open systems image:Microalgenkwekerij te Heure bij Borculo.jpg, Open raceway pond The first approach for the controlled production of phototrophic organisms was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pabst Blue Ribbon
Pabst Blue Ribbon, commonly abbreviated PBR, is an American lager beer sold by Pabst Brewing Company, established in Milwaukee, Wisconsin, in 1844 and currently based in San Antonio. Originally called Best Select, and then Pabst Select, the current name comes from the blue ribbons tied around the bottle neck between 1882 and 1916. History Gottlieb and Frederika Pabst and their twelve-year-old son Frederick arrived in the United States in 1848 and settled in Chicago where Frederick eventually found work on the ships of Lake Michigan. In 1862, Frederick married Maria Best, daughter of Philip Best, founder and owner of the Best Brewing Company, and in 1863 became a brewer at his father-in-law's brewery. When Philip Best retired to Germany in 1867, Pabst and Emil Schandein – his sister-in-law's husband and the vice-president of Best Brewery – worked to transform the company into one of the nation's largest brewers, capitalizing on, among other things, the Great Chicago Fire of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pebble Bed Reactor
The pebble-bed reactor (PBR) is a design for a graphite-moderated, gas-cooled nuclear reactor. It is a type of very-high-temperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative. The basic design of pebble-bed reactors features spherical fuel elements called pebbles. These tennis ball-sized pebbles (approx. in diameter) are made of pyrolytic graphite (which acts as the moderator), and they contain thousands of micro-fuel particles called TRISO particles. These TRISO fuel particles consist of a fissile material (such as 235U) surrounded by a ceramic layer coating of silicon carbide for structural integrity and fission product containment. In the PBR, thousands of pebbles are amassed to create a reactor core, and are cooled by a gas, such as helium, nitrogen or carbon dioxide, that does not react chemically with the fuel elements. Other coolants such as FLiBe (molten fluoride, lithium, beryllium salt)) have also been suggested for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Performance-based Regulation
Performance-based regulation (PBR) is an approach to utility regulation designed to strengthen utility performance incentives. Thus defined, the term PBR is synonymous with incentive regulation. The two most common forms of PBR are award-penalty mechanisms (“APMs”) and multiyear rate plans (“MRPs”). Both involve mathematical formulas that can lower regulatory cost at the same time that they encourage better performance. This constitutes a remarkable potential advance in the “technology” of regulation. Economic theorists whose work has supported the development of PBR include Nobel prize-winning economist Jean Tirole. Implementation of applicable methods of incentive regulation represents a complex problem for regulatory authorities. Therefore, this problem should be analyzed though different aspects, taking into consideration parameters, such as incentive’s mechanism defined by regulatory authorities, enabling thus the development of regulated activity and increase ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-Budget Report
The Spring Statement of the British Government, also known as the "mini-budget", is one of the two statements HM Treasury makes each year to Parliament of the United Kingdom, Parliament upon publication of economic forecasts, the second taking place the previous year as the Budget of the United Kingdom, Autumn Budget. At 2016's autumn statement, it was announced the budget would move to the autumn, with a spring statement taking place the following year. Both usually involve speeches in the House of Commons by the Chancellor of the Exchequer. The Spring Statement for 2019 took place in March 2019. In 2020 the spring statement was upgraded to a March 2020 United Kingdom budget, full budget following cancellation of autumn 2019's budget. and additional statements were made in July 2020 United Kingdom summer statement, summer and September 2020 United Kingdom Winter Economy Plan, autumn 2020. In 2021 the spring statement was also replaced by a March 2021 United Kingdom budget, full bud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Policy-based Routing
In computer networking, policy-based routing (PBR) is a technique used to make routing decisions based on policies set by the network administrator. When a router receives a packet it normally decides where to forward it based on the destination address in the packet, which is then used to look up an entry in a routing table. However, in some cases, there may be a need to forward the packet based on other criteria. For example, a network administrator might want to forward a packet based on the source address, not the destination address. This permits routing of packets originating from different sources to different networks even when the destinations are the same and can be useful when interconnecting several private networks. Policy-based routing may also be based on the size of the packet, the protocol of the payload, or other information available in a packet header or payload. In the Cisco IOS The Internetworking Operating System (IOS) is a family of proprietary ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelita Bandung Raya
Madura United Football Club is an Indonesian professional football club. The club is based in Pamekasan, Madura, East Java. They currently play in the Liga 1. Established on 10 January 2016, Madura United FC is one of few professional clubs that succeeded in obtaining a license from AFC (Asian Football Confederation) for two years in a row. Madura United FC currently plays in two stadiums; Gelora Bangkalan Stadium and Gelora Ratu Pamelingan Stadium. History On 10 January 2016, there was an agreement that involved the previous owner of Persipasi Bandung Raya, Ari Dewanto Sutedi, with Husodo Angkosubroto witnessed by the founder of Pelita Jaya, Nirwan Dermawan Bakrie that the ownership of Persipasi Bandung Raya (PBR) was taken over and moved to Madura. The name changed to Madura United. After the purchase, Madura United replaced PBR to perform in the 2016 Indonesia Soccer Championship A. Name changed * Pelita Jaya FC (1986–1997); home base in Lebak Bulus Stadium, Jakarta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puffing Billy Railway
The Puffing Billy Railway is a narrow gauge heritage railway in the southern foothills of the Dandenong Ranges in Melbourne, Australia. The railway was one of the five narrow gauge lines of the Victorian Railways which opened around the beginning of the 20th century. It is close to the city of Melbourne and is one of the most popular steam heritage railways in the world, attracting tourists from Australia and overseas. The railway aims to preserve and restore the line as near as possible to how it was in the first three decades of its existence, but with particular emphasis on the early 1920s. The primary starting point is Belgrave station which houses the railway's operations and administration centre. The line runs through Lakeside Station where a visitor information centre provides catering and an indoor interpretive space. The south-eastern terminus is Gembrook railway station. In 2022 the railway also returned the traditional Puffing Billy Railway dangling of legs from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PBR Theorem
The PBR theorem is a no-go theorem in quantum foundations due to Matthew Pusey, Jonathan Barrett, and Terry Rudolph (for whom the theorem is named) in 2012. It has particular significance for how one may interpret the nature of the quantum state. With respect to certain realist hidden variable theories that attempt to explain the predictions of quantum mechanics, the theorem rules that pure quantum states must be "ontic" in the sense that they correspond directly to states of reality, rather than "epistemic" in the sense that they represent probabilistic or incomplete states of knowledge about reality. The PBR theorem may also be compared with other no-go theorems like Bell's theorem and the Bell–Kochen–Specker theorem, which, respectively, rule out the possibility of explaining the predictions of quantum mechanics with local hidden variable theories and noncontextual hidden variable theories. Similarly, the PBR theorem could be said to rule out ''preparation independent'' h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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