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Type of semiconductor current
Diffusion current is a current in a semiconductor caused by the diffusion of charge carriers (electrons and/or electron holes). This is the current which
Diffusion_current
Transport of dissolved species from the highest to the lowest concentration region
Diffusion is the net movement of anything (for example, atoms, ions, molecules, energy) generally from a region of higher concentration to a region of
Diffusion
Combination of the diffusion and convection (advection) equations
The convection–diffusion equation is a parabolic partial differential equation that combines the diffusion and convection (advection) equations. It describes
Convection–diffusion_equation
Movement of charge carriers due to the applied electric field
a more general discussion). See drift–diffusion equation for the way that the drift current, diffusion current, and carrier generation and recombination
Drift_current
Equation in Brownian motion
called the drift current, perfectly balances the tendency of particles to spread out due to diffusion, called the diffusion current. The net flux of particles
Einstein relation (kinetic theory)
Einstein_relation_(kinetic_theory)
Theory on how and why new ideas spread
Diffusion of innovations is a theory that seeks to explain how, why, and at what rate new ideas and technology spread. The theory was popularized by Everett
Diffusion_of_innovations
Type of mathematical model
Reaction–diffusion systems are mathematical models that correspond to several physical phenomena. The most common is the change in space and time of the
Reaction–diffusion_system
Method of utilizing water in magnetic resonance imaging
Diffusion-weighted magnetic resonance imaging (DWI or DW-MRI) is the use of specific MRI sequences as well as software that generates images from the
Diffusion-weighted magnetic resonance imaging
Diffusion-weighted_magnetic_resonance_imaging
Equation describing the transport of some quantity
It is also called electron current density. Total electron current density is the sum of drift current and diffusion current densities: J n = e n μ n E
Continuity_equation
Component of stress coplanar with a material cross section
The electro-diffusional method measures the wall shear rate in the liquid phase from microelectrodes under limiting diffusion current conditions. A
Shear_stress
Semiconductor–semiconductor junction
equilibrium. Forward current ( J F {\displaystyle \mathbf {J} _{F}} ) Diffusion current: current due to local imbalances in carrier concentration n {\displaystyle
P–n_junction
field) built up by the diffusion just described. If the device is unconnected (or the external load is very high) then diffusion current would eventually restore
Theory_of_solar_cells
Transistor that uses both electrons and holes as charge carriers
inject from the emitter into the base region. These carriers create a diffusion current through the base from the region of high concentration near the emitter
Bipolar_junction_transistor
In a semiconductor device with a current flowing through it (for example, an ongoing transport of charge by diffusion) at a particular moment there is
Diffusion_capacitance
Archaeological theory
In cultural anthropology and cultural geography, cultural diffusion is the spread of cultural items—such as ideas, styles, art, religions, technologies
Cultural_diffusion
Quantity in solid-state physics
where n and p vary with distance, a diffusion current is superimposed on that due to conductivity. This diffusion current is governed by Fick's law: F = −
Electron_mobility
an experiment that demonstrated that diffusion of minority carriers in a semiconductor could result in a current. The experiment was reported in a short
Haynes–Shockley_experiment
Solid-state welding technique
Diffusion bonding or diffusion welding is a solid-state welding technique used in metalworking, capable of joining similar and dissimilar metals. It operates
Diffusion_bonding
Artifact in computational fluid dynamics
codes. A simple way to avoid the difficulty is to add diffusion that smooths out the shock or current sheet. Higher order numerical methods (including spectral
Numerical_diffusion
Information about current events
organized courier service for the diffusion of written documents is in Egypt, where Pharaohs used couriers for the diffusion of their decrees in the territory
News
Hop diffusion is a non-Brownian diffusion of proteins and lipid molecules within the plasma membrane. Hop diffusion occurs due to the discontinuity of
Hop_diffusion
Method of chemical analysis
of the Nernst diffusion layer). The exponential decay of the capacitive current is much more rapid than the decay of the faradaic current; hence, the faradaic
Polarography
Concept from evolutionary biology
differential diffusion of chemical species and chemical reaction. The instability mechanism is surprising because a pure diffusion, such as molecular diffusion, would
Turing_pattern
Sociopsychological phenomenon
Diffusion of responsibility is a sociopsychological phenomenon whereby a person is less likely to take responsibility for action or inaction when other
Diffusion_of_responsibility
Flame caused by separate oxidizer and fuel
combustion, a diffusion flame is a flame in which the oxidizer and fuel are separated before burning. Contrary to its name, a diffusion flame involves
Diffusion_flame
Type of halftoning
Error diffusion is a type of halftoning in which the quantization residual is distributed to neighboring pixels that have not yet been processed. Its
Error_diffusion
Loops of electric current induced within conductors by a changing magnetic field
In electromagnetism, an eddy current (also called Foucault's current) is a loop of electric current induced within conductors by a changing magnetic field
Eddy_current
Open source generative artificial intelligence UI
Currently, the most popular user interfaces for Stable Diffusion are Stable Diffusion WebUI and ComfyUI. Zhu, Andrew (2024). Using Stable Diffusion with
ComfyUI
Drug delivery technique
the millimeters deep that would result from delivery of drugs via diffusion. Current clinical trials exploring the use of CED to date have not resulted
Convection_enhanced_delivery
Ancient Sanskrit grammarian
S2CID 154283219 Carter, George F.; et al. (1979). "On Mundkur on Diffusion". Current Anthropology. 20 (2): 425–428. doi:10.1086/202297. S2CID 143783458
Pāṇini
Equation in electrochemistry
couple, the current measured depends on the rate at which the analyte diffuses to the electrode. That is, the current is said to be "diffusion controlled"
Cottrell_equation
Nonlinear optical effect
being excited preferentially in the bright fringes, the net electron diffusion current is towards the dark-fringe regions of the material. While in the conduction
Photorefractive_effect
Diffusion process with a non-linear relationship to time
Anomalous diffusion is a diffusion process with a non-linear relationship between the mean squared displacement (MSD), ⟨ r 2 ( τ ) ⟩ {\displaystyle \langle
Anomalous_diffusion
Decommissioned uranium enrichment facility
The Paducah Gaseous Diffusion Plant (PGDP) is a facility located in McCracken County, Kentucky, near Paducah, Kentucky that produced enriched uranium
Paducah Gaseous Diffusion Plant
Paducah_Gaseous_Diffusion_Plant
Mechanics concept
Rotational diffusion is the rotational movement which acts upon any object such as particles, molecules, atoms when present in a fluid, by random changes
Rotational_diffusion
Semiconductor diode based upon the p–n junction
{\displaystyle v_{\text{D}}} to energy.) Under forward bias, a diffusion current flows (that is a current driven by a concentration gradient) of holes from the
P–n_diode
Manhattan Project codename for a program to produce enriched uranium
program to produce enriched uranium for atomic bombs using the gaseous diffusion method. Originally the codename for the product, over time it came to
K-25
Sub-discipline of electrical engineering
intrinsic and extrinsic silicon. Carrier transport in silicon: diffusion current, drift current, mobility, resistivity. Generation and recombination of carriers
Electronics_engineering
Physical Process
Surface diffusion is a general process involving the motion of adatoms, molecules, and atomic clusters (adparticles) at solid material surfaces. The process
Surface_diffusion
Open source generative artificial intelligence UI
AUTOMATIC1111 Stable Diffusion Web UI (SD WebUI, A1111, or Automatic1111) is an open source generative artificial intelligence program that allows users
Automatic1111
Mixing of fluids due to eddy currents
In fluid dynamics, eddy diffusion, eddy dispersion, or turbulent diffusion is a process by which fluid substances mix together due to eddy motion. These
Eddy_diffusion
Type of motion of magnetic fields
magnetic diffusion equation and is due primarily to induction and diffusion of magnetic fields through the material. The magnetic diffusion equation is
Magnetic_diffusion
Former uranium enrichment plant in Pike County, Ohio, USA
Portsmouth Gaseous Diffusion Plant is a facility located in Scioto Township, Pike County, Ohio, just south of Piketon, Ohio, that previously produced
Portsmouth Gaseous Diffusion Plant
Portsmouth_Gaseous_Diffusion_Plant
supply, the concentration of this species at the surface decreases causing diffusion, which is added to the migration transport towards the surface in order
Concentration_polarization
Equation used in cyclic voltammetry
(usually 1) A = electrode area in cm2 F = Faraday constant in C mol−1 D = diffusion coefficient in cm2/s C = concentration in mol/cm3 ν = scan rate in V/s
Randles–Sevcik_equation
Medical imaging technique
also may be used to form images of non-living objects, such as mummies. Diffusion MRI and functional MRI extend the utility of MRI to capture neuronal tracts
Magnetic_resonance_imaging
15, 2024. Retrieved February 29, 2024. "RDS dévoile son calendrier de diffusion des matchs de la saison régulière 2023 de la MLS - Bell Media". Club,
List of current Major League Soccer broadcasters
List_of_current_Major_League_Soccer_broadcasters
British artificial intelligence company
artificial intelligence company, best known for its text-to-image model Stable Diffusion. Stability AI was founded in 2019 by Emad Mostaque and Cyrus Hodes. In
Stability_AI
Uranium processed to increase the percentage of uranium-235
which used gaseous diffusion and electromagnetic isotope separation to produce enriched uranium. Historically, gaseous diffusion and the gas centrifuge
Enriched_uranium
Old method of enriching uranium
Gaseous diffusion is a technology that was used to produce enriched uranium by forcing gaseous uranium hexafluoride (UF6) through microporous membranes
Gaseous_diffusion
Fluid transport regime by random walk
Turbulent diffusion is the transport of mass, heat, or momentum within a system due to random and chaotic time dependent motions. It occurs when turbulent
Turbulent_diffusion
Electric current generated by a redox reaction at an electrode
residual current from the measured total current. A limiting current can have the character of an adsorption, catalytic, diffusion, or kinetic current, and
Faradaic_current
common approximation summarized here is the diffusion approximation. Overall, solutions to the diffusion equation for photon transport are more computationally
Radiative transfer equation and diffusion theory for photon transport in biological tissue
Radiative_transfer_equation_and_diffusion_theory_for_photon_transport_in_biological_tissue
Diffusion creep refers to the deformation of crystalline solids by the diffusion of vacancies through their crystal lattice. Diffusion creep results in
Diffusion_creep
Semiconductor analysis technique
determine the minority carrier properties of the semiconductor, such as diffusion length and surface recombination velocity. In plain-view, areas with good
Electron_beam-induced_current
Variation in the effective width of the base in a bipolar junction transistor
characterize the minority diffusion currents induced by injection of carriers. With regard to pn-junction diode, a key relation is the diffusion equation. d 2 Δ
Early_effect
Topics referred to by the same term
parts called a Knudsen pump. It is the currently accepted theory for the rotation of the Crookes radiometer. Diffusion in a temperature gradient, also called
Thermal_diffusion
Amount of charge flowing through a unit cross-sectional area per unit time
current density is the electric current (or the amount of charge per unit time) that flows through a unit area of a chosen cross section. The current
Current_density
Mathematical marketing model
The Bass model or Bass diffusion model was developed by Frank Bass. It consists of a simple differential equation that describes the process of how new
Bass_diffusion_model
Country in South Asia
commercial problem, for instance). In the following centuries, as there is a diffusion into the West (by intermediary of the Arabs) of the methods and results
India
Limit of flowing current through a device
semiconductor diode caused by diffusion of minority carriers from the neutral regions to the depletion region. This current is almost independent of the
Saturation_current
intrinsic and extrinsic silicon. Carrier transport in silicon: diffusion current, drift current, mobility, resistivity. Generation and recombination of carriers
Education and training of electrical and electronics engineers
Education_and_training_of_electrical_and_electronics_engineers
Fluid flow that occurs due to heterogeneous fluid properties and body forces
cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place. Granular convection is a similar
Convection
NASA satellite of the Explorer program
spacecraft potential to monitor the orientation sensitivity of electron diffusion current. In the second mode, a varying potential applied to the aperture grid
Explorer_8
Physical process in cosmology
In modern cosmological theory, diffusion damping, also called photon diffusion damping, is a physical process which reduced density inequalities (anisotropies)
Diffusion_damping
AI that generates content
Kimi and Qwen; text-to-image models such as DALL-E, Firefly, Stable Diffusion, and Midjourney; and text-to-video models such as Veo, LTX and Sora. Companies
Generative_AI
Biomedical technique
antibodies each diffuse out of their respective wells. Where the two diffusion fronts meet, if any of the antibodies recognize any of the antigens, they
Ouchterlony double immunodiffusion
Ouchterlony_double_immunodiffusion
conservation-restoration of dye diffusion transfer prints is the process undertaken by conservator-restorers of caring for and maintaining dye diffusion transfer prints
Conservation-restoration of dye diffusion transfer prints
Conservation-restoration_of_dye_diffusion_transfer_prints
World War II Allied nuclear weapons program
gaseous diffusion plant and the K-25 power plant. The latter provided energy to both the K-25 gaseous diffusion plant and the S-50 thermal diffusion plant
Manhattan_Project
Warm-blooded animals with wings and feathers
dioxide waste. In the capillary beds, blood flow is slowed to allow maximum diffusion of oxygen into the tissues. Once the blood has become deoxygenated, it
Bird
Void between celestial bodies
"Galactic hydrostatic equilibrium with magnetic tension and cosmic-ray diffusion", Astrophysical Journal, Part 1, 365: 544–558, Bibcode:1990ApJ...365.
Outer_space
Island country in West Africa
Amorim Neto, Octávio; Costa Lobo, Marina (2010). "Between Constitutional Diffusion and Local Politics: Semi-Presidentialism in Portuguese-Speaking Countries"
Cape_Verde
Analytical method in electrochemistry
reduction will be diffusion-limited, thereby causing the current to drop in time (proportional to the diffusion gradient that is formed by diffusion). You can
Chronoamperometry
Type of machine learning model
consciousness or just a hallucination. David Chalmers similarly argues that while current LLMs likely lack features considered necessary for consciousness, extended
Large_language_model
Progressive neurodegenerative disease
they can be used to exclude other pathologies that cause parkinsonism. Diffusion MRI can differentiate PD from multiple system atrophy. Emerging MRI techniques
Parkinson's_disease
(only a baseline and one point are needed). Diffusion control offers another advantage. Changing the diffusion barrier allows the sensor manufacturer to
Electrochemical_gas_sensor
2017 research paper by Google
neural networks. Image and video generators like DALL-E (2021), Stable Diffusion 3 (2024), and Sora (2024), use transformers to analyse input data (like
Attention_Is_All_You_Need
German-born theoretical physicist (1879–1955)
and 1904 was mainly concerned with the effect of finite atomic size on diffusion phenomena. Einstein returned to the problem of thermodynamic fluctuations
Albert_Einstein
Low-quality AI-generated digital content
Law of Thermodynamics. As early large language models (LLMs) and image diffusion models accelerated the creation of high-volume but low-quality text and
AI_slop
Archaeological theory for cultural changes
In archaeological theory, migrationism and diffusionism (or "immobilism") were two distinguishing approaches to explaining the spread of prehistoric archaeological
Migrationism_and_diffusionism
Experimental technique in cell biology
determining the kinetics of diffusion through tissue or cells. It is capable of quantifying the two-dimensional lateral diffusion of a molecularly thin film
Fluorescence recovery after photobleaching
Fluorescence_recovery_after_photobleaching
Geological technique
Diffusion chronometry is a geological technique that examines the chemical gradients within mineral crystals to estimate the duration of events in a magmatic
Diffusion_chronometry
Model for flow conditions around rotating disk electrodes
The Levich equation models the diffusion and solution flow conditions around a rotating disk electrode (RDE). It is named after Veniamin Grigorievich
Levich_equation
Dictator of Spain from 1939 to 1975
State, and setting the mood of the masses for a military rebellion. The diffusion of the myth about an alleged Communist coup d'état as well a pretended
Francisco_Franco
King of Macedon from 336 to 323 BC
Through his conquests, he built a legacy that includes the cultural diffusion and syncretism, which gave rise to Greco-Buddhism and Hellenistic Judaism
Alexander_the_Great
US group of museums and research centers
created by the United States federal government "for the increase and diffusion of knowledge". Founded on August 10, 1846, it operates as a trust instrumentality
Smithsonian_Institution
Continent
significant part of this growth can also be attributed to the facilitated diffusion of information technologies and specifically the mobile telephone. While
Africa
Subset of artificial intelligence
the generalisation of various learning algorithms is an active topic of current research, especially for deep learning algorithms.[citation needed] Machine
Machine_learning
Region of the Middle East
influence, contrary to former suggestions. The studies further suggest a diffusion of this diverse population away from the Fertile Crescent, with the early
Fertile_Crescent
Method of analyzing electrochemical reactions
ensures that the reaction is diffusion-controlled. A voltammogram (see linear sweep voltammetry) is a graph that measures the current of an electrochemical cell
Voltammetry
Founding Father, U.S. president from 1801 to 1809
Hemings slaves in his will. During his presidency, Jefferson allowed the diffusion of slavery into the Louisiana Territory hoping to prevent slave uprisings
Thomas_Jefferson
c-11m July 2, 1973 Dictionary for Beginners LeRoy Barney c-11m 1971 Video Diffusion and Osmosis Addison E. Lee c-11m June 1, 1964 Video Digestion and Absorption
List_of_Coronet_Films_films
Northwest Semitic language
Arabic, and Hebrew, in 1922), its new formal status contributed to its diffusion. A constructed modern language with a truly Semitic vocabulary and written
Hebrew_language
Island country in Southeast Asia
cuisine, a mix of Chinese and Malay cuisine). In hawker centres, cultural diffusion is exemplified by traditionally Malay hawker stalls also selling Tamil
Singapore
Large group of transport proteins
Cation diffusion facilitators (CDFs) are transmembrane proteins that provide tolerance of cells to divalent metal ions, such as cadmium, zinc, and cobalt
Cation_diffusion_facilitator
Membrane tubing
facilitates the flow of tiny molecules in solution based on differential diffusion. In the context of life science research, dialysis tubing is typically
Dialysis_tubing
Third and current era of the Phanerozoic Eon
(1840). "Palæozoic series". Penny Cyclopaedia of the Society for the Diffusion of Useful Knowledge. Vol. 17. London, England: Charles Knight and Co.
Cenozoic
Pre-Columbian Maya city in Mexico
the presence of these non-Maya styles more as the result of cultural diffusion. Chichen Itza was one of the largest Maya cities and it was likely to
Chichen_Itza
Electricity generation by nuclear fusion
reactor volume larger, which reduces the rate of leakage due to classical diffusion. This is why ITER is so large. In contrast, inertial confinement systems
Fusion_power
Spanish footballer (born 2003)
anciens coéquipiers officiellement poursuivis pour enregistrement et diffusion de contenu pédopornographique". L'Équipe (in French). Retrieved 15 May
Raúl Asencio (footballer, born 2003)
Raúl_Asencio_(footballer,_born_2003)
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