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https://en.wikipedia.org/wiki/Terricolous%20lichen | A terricolous lichen is a lichen that grows on the soil as a substrate. An example is some members of the genus Peltigera.
References
Lichenology |
https://en.wikipedia.org/wiki/NeXTdimension | The NeXTdimension (ND) is an accelerated 32-bit color board manufactured and sold by NeXT from 1991 that gave the NeXTcube color capabilities with PostScript planned. The NeXTBus (NuBus-like) card was a full size card for the NeXTcube, filling one of four slots, another one being filled with the main board itself. The ... |
https://en.wikipedia.org/wiki/Sampson%20%28horse%29 | Sampson (later renamed Mammoth) was a Shire horse gelding born in 1846 and bred by Thomas Cleaver at Toddington Mills, Bedfordshire, England. According to Guinness World Records (1986) he was the tallest horse ever recorded, by 1850 measuring or 21.25 hands in height. His peak weight was estimated at
See also
List o... |
https://en.wikipedia.org/wiki/Morse%20code%20mnemonics | Morse code mnemonics are systems to represent the sound of Morse characters in a way intended to be easy to remember. Since every one of these mnemonics requires a two-step mental translation between sound and character, none of these systems are useful for using manual Morse at practical speeds. Amateur radio clubs c... |
https://en.wikipedia.org/wiki/CygnusEd | CygnusEd is a text editor for the AmigaOS and MorphOS. It was first developed in 1986-1987 by Bruce Dawson, Colin Fox and Steve LaRocque who were working for CygnusSoft Software. It was the first Amiga text editor with an undo/redo feature and one of the first Amiga programs that had an AREXX scripting port by which it... |
https://en.wikipedia.org/wiki/Witt%20vector | In mathematics, a Witt vector is an infinite sequence of elements of a commutative ring. Ernst Witt showed how to put a ring structure on the set of Witt vectors, in such a way that the ring of Witt vectors over the finite field of order is isomorphic to , the ring of -adic integers. They have a highly non-intuitive ... |
https://en.wikipedia.org/wiki/Parallel%20Virtual%20File%20System | The Parallel Virtual File System (PVFS) is an open-source parallel file system. A parallel file system is a type of distributed file system that distributes file data across multiple servers and provides for concurrent access by multiple tasks of a parallel application. PVFS was designed for use in large scale cluster ... |
https://en.wikipedia.org/wiki/Minix%203 | Minix 3 is a small, Unix-like operating system. It is published under a BSD-3-Clause license and is a successor project to the earlier versions, Minix 1 and 2.
The project's main goal is for the system to be fault-tolerant by detecting and repairing its faults on the fly, with no user intervention. The main uses of th... |
https://en.wikipedia.org/wiki/WURFL | WURFL (Wireless Universal Resource FiLe) is a set of proprietary application programming interfaces (APIs) and an XML configuration file which contains information about device capabilities and features for a variety of mobile devices, focused on mobile device detection. Until version 2.2, WURFL was released under an ... |
https://en.wikipedia.org/wiki/Gfarm%20file%20system | Gfarm file system is an open-source distributed file system, generally used for large-scale cluster computing and wide-area data sharing, and provides features to manage replica location explicitly. The name is derived from the Grid Data Farm architecture it implements.
Grid Datafarm is a petascale data-intensive comp... |
https://en.wikipedia.org/wiki/Symbolic%20simulation | In computer science, a simulation is a computation of the execution of some appropriately modelled state-transition system. Typically this process models the complete state of the system at individual points in a discrete linear time frame, computing each state sequentially from its predecessor. Models for computer pro... |
https://en.wikipedia.org/wiki/Index%20arbitrage | Index arbitrage is a subset of statistical arbitrage focusing on index components.
An index (such as S&P 500) is made up of several components (in the case of the S&P 500, 500 large US stocks picked by S&P to represent the US market), and the value of the index is typically computed as a linear function of the compone... |
https://en.wikipedia.org/wiki/North%20American%20Datum | The North American Datum (NAD) is the horizontal datum now used to define the geodetic network in North America. A datum is a formal description of the shape of the Earth along with an "anchor" point for the coordinate system. In surveying, cartography, and land-use planning, two North American Datums are in use for ma... |
https://en.wikipedia.org/wiki/DECmate | DECmate was the name of a series of PDP-8-compatible computers produced by the Digital Equipment Corporation in the late 1970s and early 1980s. All of the models used an Intersil 6100 (later known as the Harris 6100) or Harris 6120 (an improved Intersil 6100) microprocessor which emulated the 12-bit DEC PDP-8 CPU. They... |
https://en.wikipedia.org/wiki/Ferrier%20Lecture | The Ferrier Lecture is a Royal Society lectureship given every three years "on a subject related to the advancement of natural knowledge on the structure and function of the nervous system". It was created in 1928 to honour the memory of Sir David Ferrier, a neurologist who was the first British scientist to electronic... |
https://en.wikipedia.org/wiki/Drinfeld%20module | In mathematics, a Drinfeld module (or elliptic module) is roughly a special kind of module over a ring of functions on a curve over a finite field, generalizing the Carlitz module. Loosely speaking, they provide a function field analogue of complex multiplication theory. A shtuka (also called F-sheaf or chtouca) is a... |
https://en.wikipedia.org/wiki/Circular%20arc | A circular arc is the arc of a circle between a pair of distinct points. If the two points are not directly opposite each other, one of these arcs, the minor arc, subtends an angle at the center of the circle that is less than radians (180 degrees); and the other arc, the major arc, subtends an angle greater than rad... |
https://en.wikipedia.org/wiki/Ethernet%20in%20the%20first%20mile | Ethernet in the first mile (EFM) refers to using one of the Ethernet family of computer network technologies between a telecommunications company and a customer's premises. From the customer's point of view, it is their first mile, although from the access network's point of view it is known as the last mile.
A workin... |
https://en.wikipedia.org/wiki/Henry%20Wilbraham | Henry Wilbraham (25 July 1825 – 13 February 1883) was an English mathematician. He is known for discovering and explaining the Gibbs phenomenon nearly fifty years before J. Willard Gibbs did. Gibbs and Maxime Bôcher, as well as nearly everyone else, were unaware of Wilbraham's paper on the Gibbs phenomenon.
Biography... |
https://en.wikipedia.org/wiki/Flight%20information%20display%20system | A flight information display system (FIDS) is a computer system used in airports to display flight information to passengers, in which a computer system controls mechanical or electronic display boards or monitors in order to display arriving and departing flight information in real-time. The displays are located insid... |
https://en.wikipedia.org/wiki/XenMan | XenMan is a Xen Hypervisor management tool with a graphical user interface that allows a user to perform the standard set of operations (start, stop, pause, kill, shutdown, reboot, snapshot, etc...) in addition to some higher level operations such as the creation of a guest domain (which includes the creation of the co... |
https://en.wikipedia.org/wiki/Leonor%20F.%20Loree | Leonor F. Loree (April 23, 1858 – September 6, 1940) was an American civil engineer, lawyer, railroad executive, and founder of the American Newcomen Society.
He obtained a Bachelor of Science degree in 1877, a Master of Science in 1880, a Civil Engineering degree in 1896 and a Doctor of Law in 1917, all from Rutgers ... |
https://en.wikipedia.org/wiki/Schmidt%20decomposition | In linear algebra, the Schmidt decomposition (named after its originator Erhard Schmidt) refers to a particular way of expressing a vector in the tensor product of two inner product spaces. It has numerous applications in quantum information theory, for example in entanglement characterization and in state purification... |
https://en.wikipedia.org/wiki/Outpost%20Firewall%20Pro | Outpost Firewall Pro is a discontinued personal firewall developed by Agnitum (founded in 1999 in St. Petersburg, Russia).
Overview
Outpost Firewall Pro monitors incoming and outgoing network traffic on Windows machines. Outpost also monitors application behavior in an attempt to stop malicious software covertly inf... |
https://en.wikipedia.org/wiki/Metabolic%20control%20analysis | Metabolic control analysis (MCA) is a mathematical framework for describing
metabolic, signaling, and genetic pathways. MCA quantifies how variables, such as fluxes and species concentrations, depend on network parameters.
In particular, it is able to describe how network-dependent properties,
called control coefficie... |
https://en.wikipedia.org/wiki/Vacuum%20flange | A vacuum flange is a flange at the end of a tube used to connect vacuum chambers, tubing and vacuum pumps to each other. Vacuum flanges are used for scientific and industrial applications to allow various pieces of equipment to interact via physical connections and for vacuum maintenance, monitoring, and manipulation f... |
https://en.wikipedia.org/wiki/Read%E2%80%93modify%E2%80%93write | In computer science, read–modify–write is a class of atomic operations (such as test-and-set, fetch-and-add, and compare-and-swap) that both read a memory location and write a new value into it simultaneously, either with a completely new value or some function of the previous value. These operations prevent race cond... |
https://en.wikipedia.org/wiki/Verilog-AMS | Verilog-AMS is a derivative of the Verilog hardware description language that includes Analog and Mixed-Signal extensions (AMS) in order to define the behavior of analog and mixed-signal systems. It extends the event-based simulator loops of Verilog/SystemVerilog/VHDL, by a continuous-time simulator, which solves the d... |
https://en.wikipedia.org/wiki/Torque%20motor | A torque motor is a specialized form of DC electric motor which can operate indefinitely while stalled, without incurring damage. In this mode of operation, the motor will apply a steady torque to the load (hence the name). A torque motor that cannot perform a complete rotation is known as a limited angle torque motor.... |
https://en.wikipedia.org/wiki/WKMJ-TV | WKMJ-TV (channel 68) is a PBS member television station in Louisville, Kentucky, United States. It is the flagship station for KET2, the second television service of Kentucky Educational Television (KET), which is owned by the Kentucky Authority for Educational Television.
The station's master control and internal ope... |
https://en.wikipedia.org/wiki/ANSI/ISA-95 | ANSI/ISA-95, or ISA-95 as it is more commonly referred, is an international standard from the International Society of Automation for developing an automated interface between enterprise and control systems. This standard has been developed for global manufacturers. It was developed to be applied in all industries, and... |
https://en.wikipedia.org/wiki/Saprophagy | Saprophages are organisms that obtain nutrients by consuming decomposing dead plant or animal biomass. They are distinguished from detritivores in that saprophages are sessile consumers while detritivores are mobile. Typical saprophagic animals include sedentary polychaetes such as amphitrites (Amphitritinae, worms of ... |
https://en.wikipedia.org/wiki/Indiglo | Indiglo is a product feature on watches marketed by Timex, incorporating an electroluminescent panel as a backlight for even illumination of the watch dial.
The brand is owned by Indiglo Corporation, which is in turn solely owned by Timex, and the name derives from the word indigo, as the original watches featuring th... |
https://en.wikipedia.org/wiki/Wisconsin%20Integrally%20Synchronized%20Computer | The Wisconsin Integrally Synchronized Computer (WISC) was an early digital computer designed and built at the University of Wisconsin–Madison. Operational in 1954, it was the first digital computer in the state.
Pioneering computer designer Gene Amdahl drafted the WISC's design as his PhD thesis. The computer was buil... |
https://en.wikipedia.org/wiki/TJ-2 | TJ-2 (Type Justifying Program) was published by Peter Samson in May 1963 and is thought to be the first page layout program. Although it lacks page numbering, page headers and footers, TJ-2 is the first word processor to provide a number of essential typographic alignment and automatic typesetting features:
Columnatio... |
https://en.wikipedia.org/wiki/Digital%20cross-connect%20system | A digital cross-connect system (DCS or DXC) is a piece of circuit-switched network equipment, used in telecommunications networks, that allows lower-level TDM bit streams, such as DS0 bit streams, to be rearranged and interconnected among higher-level TDM signals, such as DS1 bit streams. DCS units are available that o... |
https://en.wikipedia.org/wiki/Inexact%20differential | An inexact differential or imperfect differential is a differential whose integral is path dependent. It is most often used in thermodynamics to express changes in path dependent quantities such as heat and work, but is defined more generally within mathematics as a type of differential form. In contrast, an integral o... |
https://en.wikipedia.org/wiki/Heteroduplex%20analysis | Heteroduplex analysis (HDA) is a method in biochemistry used to detect point mutations in DNA (Deoxyribonucleic acid) since 1992. Heteroduplexes are dsDNA molecules that have one or more mismatched pairs, on the other hand homoduplexes are dsDNA which are perfectly paired. This method of analysis depend up on the fact ... |
https://en.wikipedia.org/wiki/Annexin%20A5%20affinity%20assay | In molecular biology, an annexin A5 affinity assay is a test to quantify the number of cells undergoing apoptosis. The assay uses the protein annexin A5 to tag apoptotic and dead cells, and the numbers are then counted using either flow cytometry or a fluorescence microscope.
The annexin a5 protein binds to apoptotic ... |
https://en.wikipedia.org/wiki/Alcohol%20consumption%20recommendations | Recommendations for consumption of the drug alcohol (also known formally as ethanol) vary from recommendations to be alcohol-free to daily or weekly drinking "safe limits" or maximum intakes. Many governmental agencies and organizations have issued guidelines. These recommendations concerning maximum intake are distinc... |
https://en.wikipedia.org/wiki/Minimum%20inhibitory%20concentration | In microbiology, the minimum inhibitory concentration (MIC) is the lowest concentration of a chemical, usually a drug, which prevents visible in vitro growth of bacteria or fungi. MIC testing is performed in both diagnostic and drug discovery laboratories.
The MIC is determined by preparing a dilution series of the c... |
https://en.wikipedia.org/wiki/CRON-diet | The CRON-diet (Calorie Restriction with Optimal Nutrition) is a nutrient-rich, reduced calorie diet developed by Roy Walford, Lisa Walford, and Brian M. Delaney. The CRON-diet involves calorie restriction in the hope that the practice will improve health and retard aging, while still attempting to provide the recommend... |
https://en.wikipedia.org/wiki/Quotition%20and%20partition | In arithmetic, quotition and partition are two ways of viewing fractions and division.
In quotition division one asks, "how many parts are there?"; while in partition division one asks, "what is the size of each part?".
For example, the expression can be constructed of either of two ways:
"How many parts of the size... |
https://en.wikipedia.org/wiki/Intrusion%20tolerance | Intrusion tolerance is a fault-tolerant design approach to defending information systems against malicious attacks. In that sense, it is also a computer security approach. Abandoning the conventional aim of preventing all intrusions, intrusion tolerance instead calls for triggering mechanisms that prevent intrusions fr... |
https://en.wikipedia.org/wiki/Cryptogenic%20species | A cryptogenic species ("cryptogenic" being derived from Greek "κρυπτός", meaning hidden, and "γένεσις", meaning origin) is a species whose origins are unknown. The cryptogenic species can be an animal or plant, including other kingdoms or domains, such as fungi, algae, bacteria, or even viruses.
In ecology, a cryptog... |
https://en.wikipedia.org/wiki/Smart%20contract | A smart contract is a computer program or a transaction protocol that is intended to automatically execute, control or document events and actions according to the terms of a contract or an agreement. The objectives of smart contracts are the reduction of need for trusted intermediators, arbitration costs, and fraud lo... |
https://en.wikipedia.org/wiki/Leeuwenhoek%20Lecture | The Leeuwenhoek Lecture is a prize lecture of the Royal Society to recognize achievement in microbiology. The prize was originally given in 1950 and awarded annually, but from 2006 to 2018 was given triennially. From 2018 it will be awarded biennially.
The prize is named after the Dutch microscopist Antonie van Leeuw... |
https://en.wikipedia.org/wiki/Hyper%20Sports | Hyper Sports, known in Japan as is an Olympic-themed sports video game released by Konami for arcades in 1984. It is the sequel to 1983's Track & Field and features seven new Olympic events. Like its predecessor, Hyper Sports has two run buttons and one action button per player. The Japanese release of the game sport... |
https://en.wikipedia.org/wiki/Proof%20of%20the%20Euler%20product%20formula%20for%20the%20Riemann%20zeta%20function | Leonhard Euler proved the Euler product formula for the Riemann zeta function in his thesis Variae observationes circa series infinitas (Various Observations about Infinite Series), published by St Petersburg Academy in 1737.
The Euler product formula
The Euler product formula for the Riemann zeta function reads
whe... |
https://en.wikipedia.org/wiki/AES51 | AES51 is a standard first published by the Audio Engineering Society in June 2006 that specifies a method of carrying Asynchronous Transfer Mode (ATM) cells over Ethernet physical structure intended in particular for use with AES47 to carry AES3 digital audio transport structure. The purpose of this is to provide an op... |
https://en.wikipedia.org/wiki/MPEG%20elementary%20stream | An elementary stream (ES) as defined by the MPEG communication protocol is usually the output of an audio encoder or video encoder. An ES contains only one kind of data (e.g. audio, video, or closed caption). An elementary stream is often referred to as "elementary", "data", "audio", or "video" bitstreams or streams. T... |
https://en.wikipedia.org/wiki/Exciter%20%28effect%29 | An exciter (also called a harmonic exciter or aural exciter) is an audio signal processing technique used to enhance a signal by dynamic equalization, phase manipulation, harmonic synthesis of (usually) high frequency signals, and through the addition of subtle harmonic distortion. Dynamic equalization involves variati... |
https://en.wikipedia.org/wiki/HiSoft%20Systems | HiSoft Systems is a software company based in the UK, creators of a range of programming tools for microcomputers in 1980s and 1990s.
Products
Their first products were Pascal and Assembler implementations for the NASCOM 1 and 2 kit-based computers, followed by Pascal and C for computers, as well as a BASIC compiler ... |
https://en.wikipedia.org/wiki/Open%20book%20decomposition | In mathematics, an open book decomposition (or simply an open book) is a decomposition of a closed oriented 3-manifold M into a union of surfaces (necessarily with boundary) and solid tori. Open books have relevance to contact geometry, with a famous theorem of Emmanuel Giroux (given below) that shows that contact geom... |
https://en.wikipedia.org/wiki/Uranium%20in%20the%20environment | Uranium in the environment is a global health concern, and comes from both natural and man-made sources. Mining, phosphates in agriculture, weapons manufacturing, and nuclear power are sources of uranium in the environment.
In the natural environment, radioactivity of uranium is generally low, but uranium is a toxic m... |
https://en.wikipedia.org/wiki/List%20of%20object%E2%80%93relational%20mapping%20software | This is a list of well-known object–relational mapping software.
Java
Apache Cayenne, open-source for Java
Apache OpenJPA, open-source for Java
DataNucleus, open-source JDO and JPA implementation (formerly known as JPOX)
Ebean, open-source ORM framework
EclipseLink, Eclipse persistence platform
Enterprise JavaBeans (E... |
https://en.wikipedia.org/wiki/Moisture%20sorption%20isotherm | At equilibrium, the relationship between water content and equilibrium relative humidity of a material can be displayed graphically by a curve, the so-called moisture sorption isotherm.
For each humidity value, a sorption isotherm indicates the corresponding water content value at a given, constant temperature. If the... |
https://en.wikipedia.org/wiki/TDtv | TDtv combines IPWireless commercial UMTS TD-CDMA solution and 3GPP Release 6 Multimedia Broadcast Multicast Service (MBMS) to deliver Mobile TV. TDtv operates in the universal unpaired 3G spectrum bands that are available worldwide at 1900 MHz and 2100 MHz. It allows UMTS operators to fully utilize their existing spect... |
https://en.wikipedia.org/wiki/Cooperative%20multitasking | Cooperative multitasking, also known as non-preemptive multitasking, is a style of computer multitasking in which the operating system never initiates a context switch from a running process to another process. Instead, in order to run multiple applications concurrently, processes voluntarily yield control periodically... |
https://en.wikipedia.org/wiki/Bretschneider%27s%20formula | In geometry, Bretschneider's formula is a mathematical expression for the area of a general quadrilateral.
It works on both convex and concave quadrilaterals (but not crossed ones), whether it is cyclic or not.
History
The German mathematician Carl Anton Bretschneider discovered the formula in 1842. The formula was al... |
https://en.wikipedia.org/wiki/Echelon%20Corporation | Echelon Corporation was an American company which designed control networks to connect machines and other electronic devices, for the purposes of sensing, monitoring and control. Echelon is now owned by Adesto Technologies.
History
Echelon was founded in February 1988 in Palo Alto, California by Clifford "Mike" Markk... |
https://en.wikipedia.org/wiki/Expensive%20Desk%20Calculator | Expensive Desk Calculator by Robert A. Wagner is thought to be computing's first interactive calculation program.
The software first ran on the TX-0 computer loaned to the Massachusetts Institute of Technology (MIT) by Lincoln Laboratory. It was ported to the PDP-1 donated to MIT in 1961 by Digital Equipment Corporati... |
https://en.wikipedia.org/wiki/Subversive%20Proposal | The "Subversive Proposal" was an Internet posting by Stevan Harnad on June 27, 1994 (presented at the 1994 Network Services Conference in London) calling on all authors of "esoteric" research writings to archive their articles for free for everyone online (in anonymous FTP archives or websites). It initiated a series o... |
https://en.wikipedia.org/wiki/Motion%20camouflage | Motion camouflage is camouflage which provides a degree of concealment for a moving object, given that motion makes objects easy to detect however well their coloration matches their background or breaks up their outlines.
The principal form of motion camouflage, and the type generally meant by the term, involves an ... |
https://en.wikipedia.org/wiki/Collaborative%20working%20environment | A collaborative working environment (CWE) supports people, such as e-professionals, in their individual and cooperative work. Research in CWE involves focusing on organizational, technical, and social issues.
Background
Working practices in a collaborative working environment evolved from the traditional or geographic... |
https://en.wikipedia.org/wiki/Heijunka%20box | A heijunka box is a visual scheduling tool used in heijunka, a method originally created by Toyota for achieving a smoother production flow. While heijunka is the smoothing of production, the heijunka box is the name of a specific tool used in achieving the aims of heijunka.
The heijunka box is generally a wall schedu... |
https://en.wikipedia.org/wiki/Boilerplate%20code | In computer programming, boilerplate code, or simply boilerplate, are sections of code that are repeated in multiple places with little to no variation. When using languages that are considered verbose, the programmer must write a lot of boilerplate code to accomplish only minor functionality.
The need for boilerplate... |
https://en.wikipedia.org/wiki/Nokia%20Networks | Nokia Networks (formerly Nokia Solutions and Networks (NSN) and Nokia Siemens Networks (NSN)) is a multinational data networking and telecommunications equipment company headquartered in Espoo, Finland, and wholly owned subsidiary of Nokia Corporation. It started as a joint venture between Nokia of Finland and Siemens ... |
https://en.wikipedia.org/wiki/Crop%20Trust | The Crop Trust, officially known as the Global Crop Diversity Trust, is an international nonprofit organization with a secretariat in Bonn, Germany. Its mission is to conserve and make available the world's crop diversity for food security.
Established in 2004, the Crop Trust is the only organization whose sole missio... |
https://en.wikipedia.org/wiki/Intersection%20theorem | In projective geometry, an intersection theorem or incidence theorem is a statement concerning an incidence structure – consisting of points, lines, and possibly higher-dimensional objects and their incidences – together with a pair of objects and (for instance, a point and a line). The "theorem" states that, wheneve... |
https://en.wikipedia.org/wiki/Bevameter | A bevameter is a device used in terramechanics to measure the mechanical properties of soil. Bevameter technique was developed to measure terrain mechanical properties for the study of vehicle mobility. The bevameter test consists of penetration test to measure normal loads and shear test to determine shear loads exert... |
https://en.wikipedia.org/wiki/Continua%20Health%20Alliance | Continua Health Alliance is an international non-profit, open industry group of nearly 240 healthcare providers, communications, medical, and fitness device companies.
Continua was a founding member of Personal Connected Health Alliance which was launched in February 2014 with other founding members mHealth SUMMIT and... |
https://en.wikipedia.org/wiki/Cyclin%20B | Cyclin B is a member of the cyclin family. Cyclin B is a mitotic cyclin. The amount of cyclin B (which binds to Cdk1) and the activity of the cyclin B-Cdk complex rise through the cell cycle until mitosis, where they fall abruptly due to degradation of cyclin B (Cdk1 is constitutively present). The complex of Cdk and... |
https://en.wikipedia.org/wiki/DNA%20field-effect%20transistor | A DNA field-effect transistor (DNAFET) is a field-effect transistor which uses the field-effect due to the partial charges of DNA molecules to function as a biosensor. The structure of DNAFETs is similar to that of MOSFETs, with the exception of the gate structure which, in DNAFETs, is replaced by a layer of immobilize... |
https://en.wikipedia.org/wiki/Heterodont | In anatomy, a heterodont (from Greek, meaning 'different teeth') is an animal which possesses more than a single tooth morphology.
In vertebrates, heterodont pertains to animals where teeth are differentiated into different forms. For example, members of the Synapsida generally possess incisors, canines ("dogteeth"),... |
https://en.wikipedia.org/wiki/Distributed%20amplifier | Distributed amplifiers are circuit designs that incorporate transmission line theory into traditional amplifier design to obtain a larger gain-bandwidth product than is realizable by conventional circuits.
History
The design of the distributed amplifiers was first formulated by William S. Percival in 1936. In that y... |
https://en.wikipedia.org/wiki/N-vector | The n-vector representation (also called geodetic normal or ellipsoid normal vector) is a three-parameter non-singular representation well-suited for replacing geodetic coordinates (latitude and longitude) for horizontal position representation in mathematical calculations and computer algorithms.
Geometrically, the ... |
https://en.wikipedia.org/wiki/Power%20automorphism | In mathematics, in the realm of group theory, a power automorphism of a group is an automorphism that takes each subgroup of the group to within itself. It is worth noting that the power automorphism of an infinite group may not restrict to an automorphism on each subgroup. For instance, the automorphism on rational nu... |
https://en.wikipedia.org/wiki/IA%20automorphism | In mathematics, in the realm of group theory, an IA automorphism of a group is an automorphism that acts as identity on the abelianization. The abelianization of a group is its quotient by its commutator subgroup. An IA automorphism is thus an automorphism that sends each coset of the commutator subgroup to itself.
Th... |
https://en.wikipedia.org/wiki/Class%20automorphism | In mathematics, in the realm of group theory, a class automorphism is an automorphism of a group that sends each element to within its conjugacy class. The class automorphisms form a subgroup of the automorphism group. Some facts:
Every inner automorphism is a class automorphism.
Every class automorphism is a family... |
https://en.wikipedia.org/wiki/Splice%20%28system%20call%29 | is a Linux-specific system call that moves data between a file descriptor and a pipe without a round trip to user space. The related system call moves or copies data between a pipe and user space. Ideally, splice and vmsplice work by remapping pages and do not actually copy any data, which may improve I/O performance... |
https://en.wikipedia.org/wiki/Fixture%20%28tool%29 | A fixture is a work-holding or support device used in the manufacturing industry. Fixtures are used to securely locate (position in a specific location or orientation) and support the work, ensuring that all parts produced using the fixture will maintain conformity and interchangeability. Using a fixture improves the e... |
https://en.wikipedia.org/wiki/Acrocyanosis | Acrocyanosis is persistent blue or cyanotic discoloration of the extremities, most commonly occurring in the hands, although it also occurs in the feet and distal parts of face. Although described over 100 years ago and not uncommon in practice, the nature of this phenomenon is still uncertain. The very term "acrocyano... |
https://en.wikipedia.org/wiki/Stability%20group | In mathematics, in the realm of group theory, the stability group of subnormal series is the group of automorphisms that act as identity on each quotient group.
Group theory |
https://en.wikipedia.org/wiki/Shape%20correction%20function | The shape correction function is a ratio of the surface area of a growing organism and that of an isomorph as function of the volume. The shape of the isomorph is taken to be equal to that of the organism for a given reference volume, so for that particular volume the surface areas are also equal and the shape correcti... |
https://en.wikipedia.org/wiki/Panning%20%28audio%29 | Panning is the distribution of an audio signal (either monaural or stereophonic pairs) into a new stereo or multi-channel sound field determined by a pan control setting. A typical physical recording console has a pan control for each incoming source channel. A pan control or pan pot (short for "panning potentiometer")... |
https://en.wikipedia.org/wiki/Syntrophy | In biology, syntrophy, synthrophy, or cross-feeding (from Greek syn meaning together, trophe meaning nourishment) is the phenomenon of one species feeding on the metabolic products of another species to cope up with the energy limitations by electron transfer. In this type of biological interaction, metabolite transfer... |
https://en.wikipedia.org/wiki/Maintenance%20of%20an%20organism | Maintenance of an organism is the collection of processes to stay alive, excluding production processes. The Dynamic Energy Budget theory delineates two classes
Somatic maintenance mainly comprises the turnover of structural mass (mainly proteins) and the maintenance of concentration gradients of metabolites across me... |
https://en.wikipedia.org/wiki/Tonnetz | In musical tuning and harmony, the (German for 'tone network') is a conceptual lattice diagram representing tonal space first described by Leonhard Euler in 1739. Various visual representations of the Tonnetz can be used to show traditional harmonic relationships in European classical music.
History through 1900
The... |
https://en.wikipedia.org/wiki/Sequencing%20batch%20reactor | Sequencing batch reactors (SBR) or sequential batch reactors are a type of activated sludge process for the treatment of wastewater. SBR reactors treat wastewater such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the mixture of wastewat... |
https://en.wikipedia.org/wiki/Neural%20facilitation | Neural facilitation, also known as paired-pulse facilitation (PPF), is a phenomenon in neuroscience in which postsynaptic potentials (PSPs) (EPPs, EPSPs or IPSPs) evoked by an impulse are increased when that impulse closely follows a prior impulse. PPF is thus a form of short-term synaptic plasticity. The mechanisms un... |
https://en.wikipedia.org/wiki/Chimera%20%28virus%29 | A chimera or chimeric virus is a virus that contains genetic material derived from two or more distinct viruses. It is defined by the Center for Veterinary Biologics (part of the U.S. Department of Agriculture's Animal and Plant Health Inspection Service) as a "new hybrid microorganism created by joining nucleic acid f... |
https://en.wikipedia.org/wiki/Prosopography%20of%20Anglo-Saxon%20England | The Prosopography of Anglo-Saxon England (PASE) is a database and associated website that aims to construct a prosopography of individuals within Anglo-Saxon England. The PASE online database presents details (which it calls factoids) of the lives of every recorded individual who lived in, or was closely connected with... |
https://en.wikipedia.org/wiki/Sage%20oil | Sage oils are essential oils that come in several varieties:
Dalmatian sage oil
Also called English, Garden, and True sage oil. Made by steam distillation of Salvia officinalis partially dried leaves. Yields range from 0.5 to 1.0%. A colorless to yellow liquid with a warm camphoraceous, thujone-like odor and sharp an... |
https://en.wikipedia.org/wiki/DNA%20footprinting | DNA footprinting is a method of investigating the sequence specificity of DNA-binding proteins in vitro. This technique can be used to study protein-DNA interactions both outside and within cells.
The regulation of transcription has been studied extensively, and yet there is still much that is unknown. Transcription... |
https://en.wikipedia.org/wiki/Far-western%20blot | The far-western blot, or far-western blotting, is a molecular biological method based on the technique of western blot to detect protein-protein interaction in vitro. Whereas western blot uses an antibody probe to detect a protein of interest, far-western blot uses a non-antibody probe which can bind the protein of int... |
https://en.wikipedia.org/wiki/One-compartment%20kinetics | One-compartment kinetics for a chemical compound specifies that the uptake in the compartment is proportional to the concentration outside the compartment, and the elimination is proportional to the concentration inside the compartment. Both the compartment and the environment outside the compartment are considered to ... |
https://en.wikipedia.org/wiki/ICONIX | ICONIX is a software development methodology which predates both the Rational Unified Process (RUP), Extreme Programming (XP) and Agile software development. Like RUP, the ICONIX process is UML Use Case driven but more lightweight than RUP. ICONIX provides more requirement and design documentation than XP, and aims to... |
https://en.wikipedia.org/wiki/Index%20Translationum | The Index Translationum is UNESCO's database of book translations. Books have been translated for thousands of years, with no central record of the fact. The League of Nations established a record of translations in 1932. In 1946, the United Nations superseded the League and UNESCO was assigned the Index. In 1979, the ... |
https://en.wikipedia.org/wiki/History%20of%20information%20theory | The decisive event which established the discipline of information theory, and brought it to immediate worldwide attention, was the publication of Claude E. Shannon's classic paper "A Mathematical Theory of Communication" in the Bell System Technical Journal in July and October 1948.
In this revolutionary and groundbr... |
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