All articles starting with F
15,892 articles
Fiber photometry
Fiber photometry is an optical neuroscience method recording bulk fluorescence from genetically encoded indicators in a targeted brain region of a behaving animal through an implanted optical fiber.
Fiber product of schemes
The fiber product of schemes X ×S Y is the categorical pullback of two morphisms to a common base S, underlying intersections, fibers, and base change.
Fiber to the home
Fiber to the home (FTTH) is a broadband access architecture in which optical fiber reaches the subscriber's premises directly, eliminating copper from the transmission path entirely.
Fiber to the x
Fiber to the x (FTTx) is a family of broadband access architectures in which optical fiber replaces part or all of the copper local loop to the subscriber.
Fiber waveguide theory
Fiber waveguide theory is the body of electromagnetics describing how light propagates as guided modes in optical fibers, with the LP mode description as its central result.
Fiber-laser-driven attosecond source
A fiber-laser-driven attosecond source is a tabletop setup in which an ultrafast fiber laser drives high-order harmonic generation to produce attosecond pulses, offering higher repetition rates than Ti:sapphire.
Fiber-optic cable
A fiber-optic cable, also called an optical fiber cable, is a protective assembly containing glass fibers that guide light by total internal reflection to carry information.
Fiber-optic communication
Fiber-optic communication, also known as optical fiber communication, transmits information as light pulses through thin glass strands; submarine fiber cables carry about 99% of the world's international data traffic.
Fiber-optic Ethernet
Fiber-optic Ethernet is the family of Ethernet physical-layer standards that carry frames as light over optical fiber, from 10 Mb/s fiber links up to 400 Gb/s.
Fiber-optic gyroscope
A fiber-optic gyroscope (FOG) is a solid-state rotation sensor that measures angular velocity using the Sagnac effect, with no moving parts, used in inertial navigation systems.
Fiber-optic sensor
A fiber-optic sensor is a device that uses light guided in an optical fiber to measure temperature, strain, or pressure, immune to electromagnetic interference in harsh environments.
Fiber-reinforced concrete
Fiber-reinforced concrete (FRC) is a composite of hydraulic cement, aggregate, and discontinuous fibers, usually steel, glass, synthetic, or natural, that bridges cracks and adds post-cracking strength.
Fiber-reinforced plastic rebar
Fiber-reinforced plastic rebar, also called fiber-reinforced polymer or FRP rebar, is a noncorrosive concrete reinforcing bar made of glass, carbon, or basalt fibers in a polymer resin, used where steel would corrode.
Fiber-reinforced pneumatic actuator
A fiber-reinforced pneumatic actuator is a soft robotic actuator in which inextensible fibers constrain an inflating rubber chamber to produce bending, extension, or twisting; invented by Suzumori in the 1990s.
Fiber-seq
Fiber-seq is a single-molecule long-read sequencing method, introduced in 2020, that uses methyltransferase labeling to read nucleosome positions, accessibility, and methylation on individual chromatin fibers.
Fiberglass
Fiberglass, also called glass fiber or glass reinforced plastic, is a material of extremely fine glass strands used to reinforce plastics and, as glass wool, to insulate buildings.
Fiberoptic endoscopic evaluation of swallowing
Fiberoptic endoscopic evaluation of swallowing (FEES) is a bedside procedure in which a flexible laryngoscope passed through the nose assesses swallowing and aspiration risk, first described in 1988.
Fiberscope
A fiberscope, also called a snake camera, is a flexible endoscope that transmits images from its tip through a bundle of optical fibers for inspecting cavities.
FIBI Holdings
FIBI Holdings is an Israeli holding company, founded in 1972 and headquartered in Tel Aviv, that controls the First International Bank of Israel, one of Israel's largest banking groups.
Fibocom (广和通) (Guanghetong)
Fibocom Wireless Inc., also known as Guanghetong (广和通), is a Shenzhen-based maker of wireless communication modules for the Internet of Things, founded in 1999 and the world's second largest module provider.
Fiboflapon
Fiboflapon (GSK2190915, formerly AM803) is an investigational oral 5-lipoxygenase-activating protein (FLAP) inhibitor developed for asthma; it suppresses leukotriene B4 and cysteinyl leukotrienes, half-life 16-34 h, not approved.
Fibonacci
Fibonacci, also known as Leonardo Pisano or Leonardo of Pisa (c. 1170–c. 1250), was an Italian mathematician who introduced Hindu-Arabic numerals to Europe in his 1202 Liber Abaci.
Fibonacci anyon
A Fibonacci anyon is a non-Abelian quasiparticle whose fusion rule τ × τ = 1 + τ gives Fibonacci-number fusion paths, the simplest model universal for quantum computation by braiding alone.
Fibonacci coding
Fibonacci coding, also called the Gopala-Hemachandra code, is a universal, prefix-free code for positive integers that uses the Zeckendorf representation and ends each codeword with the pair 11.
Fibonacci cube
The Fibonacci cube is a graph whose vertices are binary strings with no two consecutive 1s, introduced by Wen-Ping Hsu in 1993 as an interconnection network topology.
Fibonacci heap
A Fibonacci heap, also called an F-heap or fib heap, is a data structure for priority queues, invented by Michael Fredman and Robert Tarjan in 1984 and published in 1987.
Fibonacci Nim
Fibonacci Nim: a take-away game where each move may be at most twice the previous one and the first player cannot take all; the second player wins exactly when the pile size is a Fibonacci number, via the Zeckendorf representation.
Fibonacci retracement
A Fibonacci retracement is a charting method that divides a price swing with horizontal lines at 23.6%, 38.2%, 50%, and 61.8%, read as possible pullback reversal zones.
Fibonacci sequence
The Fibonacci sequence, also known as the Fibonacci series, is the integer sequence 0, 1, 1, 2, 3, 5, 8, 13, in which each term is the sum of the two before it.
Fibonacci word
The Fibonacci word, also called the rabbit sequence, is an infinite binary sequence beginning 0100101001001, the fixed point of the substitution sending 0 to 01 and 1 to 0.