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Electric circuit model in neuroscience
neuroscience, current source density analysis is the practice of placing a microelectrode in proximity to a nerve or a nerve cell to detect current sourcing from
Current source density analysis
Current_source_density_analysis
Analogy used to study vector fields
areas where this terminology is used include source–sink dynamics in ecology and current source density analysis in neuroscience, as well as in the A/V industry
Sources_and_sinks
Type of olfactory cell
"Periglomerular cell action on mitral cells in olfactory bulb shown by current source density analysis". Brain Research. 308 (2): 223–233. doi:10.1016/0006-8993(84)91061-8
Periglomerular_cell
Physical quantity in electromagnetism
units as electric current density, and it is a source of the magnetic field just as actual current is. However it is not an electric current of moving charges
Displacement_current_density
Flow of magnetic monopole charge
densities and magnetic current densities in the same analysis. The direction of the electric field produced by magnetic currents is determined by the left-hand
Magnetic_current
Assemblage of connected electrical elements
require more complex design and analysis tools. An active network contains at least one voltage source or current source that can supply energy to the network
Electrical_network
Relative importance of certain frequencies in a composite signal
of noise Least-squares spectral analysis Noise spectral density Polyspectra (higher order spectra) Spectral density estimation Spectral efficiency Spectral
Spectral_density
Neural oscillatory pattern
PMID 11718888. S2CID 21416029. Brankack, J; Stewart M; Fox SE (1993). "Current source density analysis of the hippocampal theta rhythm: Associated sustained potentials
Theta_wave
Electric charge per unit length, area or volume
The charge density appears in the continuity equation for electric current, and also in Maxwell's Equations. It is the principal source term of the electromagnetic
Charge_density
Concept in statistics
it in its current form. One of the famous applications of kernel density estimation is in estimating the class-conditional marginal densities of data when
Kernel_density_estimation
For a more detailed analysis of current and historical Irish populations in the Republic of Ireland, see Irish population analysis. The population of the
List of Irish counties by population
List_of_Irish_counties_by_population
Device for long-term recording or stimulation of neural activity in living tissue
and current source density analysis. Biosensors & Bioelectronics, 2007. 22(8): p. 1783-1790. ^ Moffitt, M.A. and C.C. McIntyre, Model-based analysis of
Chronic_electrode_implant
Estimate of an unobservable underlying probability density function
Density Estimation for Statistics and Data Analysis. Chapman and Hall. ISBN 978-0412246203. A calculator for probability distributions and density functions
Density_estimation
Fortran software and development tools
ROSE — source-to-source compiler framework developed at Lawrence Livermore National Laboratory Silverfrost FTN95 — FTN95 from Silverfrost is current, runs
List of Fortran software and tools
List_of_Fortran_software_and_tools
Flow of electric charge
particles. Electronics portal Current density Displacement current (electric) and Magnetic current § Magnetic displacement current Electric shock Electrical
Electric_current
Flow that is driven by a density difference and gravity
dynamics, a gravity current or density current is a primarily horizontal flow in a gravitational field that is driven by a density difference in a fluid
Gravity_current
Electromagnetic effect in physics
defined as the ratio of the induced electric field to the product of the current density and the applied magnetic field. It is a characteristic of the material
Hall_effect
Mathematical concept applicable to physics
corresponding flux density is a flux according to the transport definition. Given a current such as electric current—charge per time, current density would also
Flux
Beam of charged atoms (ions)
apertures. Here, the DC discharge current or the RF discharge power are used to control the beam current. The ion current density j {\displaystyle j} that can
Ion_beam
ion beam are key factors in ion gun design. The ion current density is controlled by the ion source, the energy spread is determined primarily by the extraction
Ion_gun
Fast-moving current of hot gas and volcanic matter that moves away from a volcano
pyroclastic flow, more broadly known as a pyroclastic density current, is a fast-moving current of hot gas and volcanic matter (collectively known as
Pyroclastic_flow
Ratio of two densities
Relative density, also called specific gravity, is a dimensionless quantity defined as the ratio of the density (mass divided by volume) of a substance
Relative_density
Law of electrical current and voltage
used in electromagnetics and material science: 𝐉=σ𝐄, where J is the current density at a given location in a resistive material, E is the electric field
Ohm's_law
Grouping a set of objects by similarity
use, a density threshold or the number of expected clusters) depend on the individual data set and intended use of the results. Cluster analysis as such
Cluster_analysis
Theorem in electromagnetism
radiation problem with given current density sources, electric current density J 1 {\displaystyle J_{1}} and magnetic current density M 1 {\displaystyle M_{1}}
Surface_equivalence_principle
Directional mass flow of oceanic water
differences in water density due to variations in water temperature and salinity. Surface oceanic currents are driven by wind currents, the large scale prevailing
Ocean_current
Unit of information
that has already been collected by other sources, such as data disseminated in a scientific journal). Data analysis methodologies vary and include data triangulation
Data
Loops of electric current induced within conductors by a changing magnetic field
experiences a decrease in magnetic flux density d B d t < 0 {\displaystyle {\frac {dB}{dt}}<0} , inducing a second eddy current, this time in a clockwise direction
Eddy_current
stack. Comparison of GIS software GIS Spatial analysis Spatial network analysis software "Free and Open Source Software for Geospatial Information Systems
List of spatial analysis software
List_of_spatial_analysis_software
Source of statistical bias
which "modifiable areal unit" to use in their analysis. A census choropleth map calculating population density using state boundaries will yield radically
Modifiable_areal_unit_problem
Property of space that quantifies the magnetic influence at a given location
field, 𝐄 the electric field, ρf the free electric charge density, and 𝐉f the free current density. The first of Maxwell's equations is known as Gauss' Law
Magnetic_field
Determining all voltages and currents within an electrical network
resistors, ideal current sources, and ideal voltage sources. If the sources are constant (DC) sources, the result is a DC circuit. Analysis of a circuit consists
Network analysis (electrical circuits)
Network_analysis_(electrical_circuits)
Propagation delay of EM radiation (light)
time includes integrals of charge density ρ(r', tr) and current density J(r', tr) using the retarded times and source positions. The quantity is prominent
Retarded_time
Law of classical electromagnetism
magnetic flux density B at position r in 3D-space generated by a filamentary current I (for example due to a wire). A steady (or stationary) current is a continual
Biot–Savart_law
Method of analyzing electrochemical reactions
{\displaystyle j} : electrode current density, A/m2 (defined as j = I/S) j 0 {\displaystyle j_{0}} : exchange current density, A/m2 E {\displaystyle E} :
Voltammetry
Forensic method
Bloodstain pattern analysis (BPA) is a forensic discipline focused on analyzing bloodstains left at known, or suspected crime scenes through visual pattern
Bloodstain_pattern_analysis
Analysis of social structures using network and graph theory
network analysis research in computer-supported collaborative learning such as: density, centrality, indegree, outdegree, and sociogram. Density refers
Social_network_analysis
Type of transistor
metal–oxide–semiconductor FET (MOSFET). FETs have three terminals: source, gate, and drain. FETs control the current by the application of a voltage to the gate, which
Field-effect_transistor
Tendency of AC current flow in a conductor's outer layer
tendency of an alternating electric current (AC) to become distributed within a conductor such that the current density is largest near the surface of the
Skin_effect
One of the five major groups of lipoprotein
High-density lipoprotein (HDL) is one of the five major groups of lipoproteins. Lipoproteins are complex particles composed of multiple proteins which
High-density_lipoprotein
Underwater current of sediment-laden water moving downslope
adjacent waters. The driving force behind a turbidity current is gravity acting on the high density of the sediments temporarily suspended within a fluid
Turbidity_current
Columbia and their nominal GDP at current prices. The data source for the list is the Bureau of Economic Analysis (BEA) in 2025. The BEA defined GDP
List of U.S. states and territories by GDP
List_of_U.S._states_and_territories_by_GDP
Branch of statistics
reliability analysis or reliability engineering in engineering, duration analysis or duration modelling in economics, and event history analysis in sociology
Survival_analysis
One of the five major groups of lipoprotein
ULDL by the overall density naming convention), very low-density lipoprotein (VLDL), intermediate-density lipoprotein (IDL), low-density lipoprotein (LDL)
Low-density_lipoprotein
Statistical distribution for dependence between random variables
probability density function between the two random variables are known, then the copula density function can be calculated. Various bivariate copula density functions
Copula_(statistics)
Type of field-effect transistor
gate leads to a higher electron density in the inversion layer and therefore increases the current flow between the source and drain. For gate voltages below
MOSFET
Single, negligibly-sized object from which light, sound, energy, etc. emanates
usually be approximated as a mathematical point to simplify analysis. The actual source need not be physically small if its size is negligible relative
Point_source
Whole genome association analysis toolset
PLINK is a free, open-source whole-genome association analysis toolkit used to perform a wide-range of genetic data analysis. It was designed by Shaun
PLINK_(genetic_tool-set)
Measure of a substance's ability to resist or conduct electric current
is the electric field at the point x, J(x) is the current density at the point x. The current density is parallel to the electric field by necessity. Conductivity
Electrical resistivity and conductivity
Electrical_resistivity_and_conductivity
Particle physics process affecting neutrinos
charge that the charged current weak interaction couples to (called weak isospin) has an opposite sign. If the electron density of matter changes along
Mikheyev–Smirnov–Wolfenstein effect
Mikheyev–Smirnov–Wolfenstein_effect
State of matter
discharge between two electrodes, similar to lightning. With ample current density, the discharge forms a luminous arc, where the inter-electrode material
Plasma_(physics)
Computational statistics technique
essentially involves enclosing the logarithm of the density in a series of line segments. This is the source of the log-concave restriction: if a distribution
Rejection_sampling
Scientific law regarding conservation of a physical property
(pressure per unit density) giving the source term, It can be shown that the conserved (vector) quantity and the current density matrix for these equations
Conservation_law
Analysis of the dimensions of different physical quantities
In engineering and science, dimensional analysis of different physical quantities is the analysis of their physical dimension or quantity dimension, defined
Dimensional_analysis
Force acting on charged particles in electric and magnetic fields
identities, the force density can be reformulated to eliminate explicit reference to the charge and current densities. The force density can then be written
Lorentz_force
Type of electrical circuit
Wilson current mirror is a three-terminal circuit (Fig. 1) that accepts an input current at the input terminal and provides a "mirrored" current source or
Wilson_current_mirror
Opposition to current by inductance or capacitance
is the source of the opposition to the current. When the potential associated with the charge exactly balances the applied voltage, the current goes to
Electrical_reactance
Concept in classical electromagnetism
B or H magnetic fields. These two forms use the total current density and free current density, respectively. The B and H fields are related by the constitutive
Ampère's_circuital_law
Two equalities that deal with the current and potential difference
simulation software, such as SPICE. The current law is used with Ohm's law to perform nodal analysis. The current law is applicable to any lumped network
Kirchhoff's_circuit_laws
Emission of electrons induced by an electrostatic field
emission source (certainly in terms of achieved average emission current density) seem to be Spindt arrays and the various forms of source based on CNTs
Field_electron_emission
Object or material which allows the flow of electric charge with little energy loss
particle does not need to travel from the component producing the current (the current source) to those consuming it (the loads). Instead, the charged particle
Electrical_conductor
Proposed spacecraft propulsion method
alternating current to generate a rotating magnetic field (RMF) that analysis predicted and laboratory experiments demonstrated that a current disc formed
Magnetic_sail
Rate at which electrical energy is transferred by an electric circuit
same; in a source at any instant the current flows from the lower potential to the higher potential, while in a load the instantaneous current flows from
Electric_power
Ways of writing certain laws of physics
of light. The four-current is the contravariant four-vector which combines electric charge density ρ and electric current density j: Jα=(cρ,𝐣). The electromagnetic
Covariant formulation of classical electromagnetism
Covariant_formulation_of_classical_electromagnetism
Equations describing classical electromagnetism
dependence. The sources are the total electric charge density (total charge per unit volume), ρ, and the total electric current density (total current per unit
Maxwell's_equations
Electromagnetic opposition to change
consumed as heat generated by the current of q2 but is also stored in two opposing magnetic fields. The energy density of magnetic fields tends to vary
Lenz's_law
Study of motions and interactions of neutrons
degree less than or equal to 1, the neutron source is isotropic, the rate of change of the current density vector 𝐉(𝐫,E,t) is much smaller than the frequency
Neutron_transport
Electric current that periodically reverses direction
of a few skin depths. The skin depth is the thickness at which the current density is reduced by 63%. Even at relatively low frequencies used for power
Alternating_current
Ambient modal identification, also known as operational modal analysis (OMA), aims at identifying the modal properties of a structure based on vibration
Operational_modal_analysis
Demographic features of the population of the Netherlands include population density, ethnicity, education level, health of the population, economic status
Demographics of the Netherlands
Demographics_of_the_Netherlands
Theories about the end of the universe
the Big Bang mostly depends on knowing the rate of expansion, average density of matter, and the physical properties of the mass–energy in the universe
Ultimate_fate_of_the_universe
consideration of the surprisingly low densities and albedos of many large trans-Neptunian objects, as well as spectroscopic analysis of their surfaces, suggests
List of possible dwarf planets
List_of_possible_dwarf_planets
Chemical analysis technique
dispersive X-ray analysis (EDXA or EDAX) or energy dispersive X-ray microanalysis (EDXMA), is an analytical technique used for the elemental analysis or chemical
Energy-dispersive X-ray spectroscopy
Energy-dispersive_X-ray_spectroscopy
Skeletal disorder
factor. A 2017 meta-analysis of published medical studies shows that a higher protein diet helps slightly with lower spine density but does not show significant
Osteoporosis
Mapping brain activity by recording magnetic fields produced by currents in the brain
ill-posed cannot be overemphasized. If one's goal is to estimate the current density within the human brain with say a 5mm resolution then it is well established
Magnetoencephalography
Physical quantity, density of magnetic moment per volume
of magnetic fields (B, H), electric fields (E, D), charge density (ρ), and current density (J) is described by Maxwell's equations. The role of the magnetization
Magnetization
Statement on equilibrium in electromagnetism
contradiction to Earnshaw's theorem, but also the resulting charge density and the current density are stationary, and so is the corresponding electromagnetic
Earnshaw's_theorem
Technique of brain electric stimulation therapy
determine the current density at which overt brain damage occurs in rats. It was found that in cathodal stimulation, a current density of 142.9 A/m2 delivering
Transcranial direct-current stimulation
Transcranial_direct-current_stimulation
Types of electrical circuits
(electronics) Combining impedances Current divider Equivalent impedance transforms Hydraulic analogy Network analysis (electrical circuits) Resistance distance
Series_and_parallel_circuits
Electrical action produced by a non-electrical source
drive an electric current if an external circuit is attached to the terminals, in which case the device becomes the voltage source of that circuit. Although
Electromotive_force
Opposition of a circuit to a current when a voltage is applied
{\mathcal {E}}} (voltage opposing current) due to a rate-of-change of magnetic flux density B {\displaystyle B} through a current loop. E = − d Φ B d t {\displaystyle
Electrical_impedance
Type of nuclear battery which generates electric current
electric current from beta particles (electrons or positrons) emitted from a radioactive source, using semiconductor junctions. A common source used is
Betavoltaic_device
Magnetic analog of electric potential valid outside materials
potential is valid in any simply connected region with zero current density, thus if currents are confined to wires or surfaces, piecemeal solutions can
Magnetic_scalar_potential
Type of rechargeable battery
materials choices, the voltage, energy density, life, and safety of a lithium-ion cell can change dramatically. Current effort has been exploring the use of
Lithium-ion_battery
Vehicle propelled fully or mostly by electricity
technological advances in lithium batteries—which offer superior energy density and current output versus lead-acid batteries—have revived public interest as
Electric_vehicle
Quantity in electromagnetism
electric scalar potential ϕ(𝐫,t) due to a current distribution of current density 𝐉(𝐫,t), charge density ρ(𝐫,t), and volume Ω, within which ρ and 𝐉
Magnetic_vector_potential
Analysis and solving of problems that involve fluid flows
of both fluid mechanics and computational physics that uses numerical analysis and data structures to analyze and solve problems that involve flows. Computers
Computational_fluid_dynamics
Electromagnetic effect of point charges
(t'-t_{r})dt'd^{3}\mathbf {r} '.} For a moving point charge, the charge and current densities are as follows: ρ ( r ′ , t ′ ) = q δ ( r ′ − r 0 ( t ′ ) ) {\displaystyle
Liénard–Wiechert_potential
Total mass of fat divided by total body mass
S2CID 2191337. Siri WE (1961). "Body composition from fluid spaces and density: Analysis of methods". In Brozek J, Henzchel A (eds.). Techniques for Measuring
Body_fat_percentage
Third planet from the Sun
surface from an initially reducing state to its current oxidizing one. Photosynthesis provided a source of free oxygen, but the loss of reducing agents
Earth
Procedure to assess particle size distribution
A sieve analysis (or gradation test) is a practice or procedure used in geology, civil engineering, and chemical engineering to assess the particle size
Sieve_analysis
Unidirectional flow of electric charge
a voltage or current. For example, the voltage across a DC voltage source is constant as is the current through a direct current source. The DC solution
Direct_current
Theoretical satellite collision cascade
strikes a high-density element in the spacecraft. In such a breakup, numerous fragments larger than 1 kg would be created. Kessler's analysis divided the
Kessler_syndrome
Data visualization technique
crime analytics or website click-tracking, color is used to represent the density of data points rather than a value associated with each point. "Heat map"
Heat_map
Equation in physics
govern the electric field E and magnetic field B due to a source charge density ρ and current density J: where ε0 is the vacuum permittivity and μ0 is the
Inhomogeneous electromagnetic wave equation
Inhomogeneous_electromagnetic_wave_equation
Spectroscopic technique
well as their chemical state, and the overall electronic structure and density of the electronic states in the material. XPS is a powerful measurement
X-ray photoelectron spectroscopy
X-ray_photoelectron_spectroscopy
Energy driving the accelerated expansion of the universe
essential feature of most current models of the Big Bang. However, inflation must have occurred at a much higher energy density than the dark energy we
Dark_energy
Ecological metric
by photosynthesis than it consumes by cellular respiration for its own current energy demand. Photosynthesis measurement systems are not designed to directly
Photosynthetic_efficiency
Mathematical technique
mathematical analysis technique for locating the maxima of a density function, a so-called mode-seeking algorithm. Application domains include cluster analysis in
Mean_shift
Motor which works on direct current
with a common D.C. power source. The motor speed varies as a non-linear function of load torque and armature current; current is common to both the stator
DC_motor
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CURRENT SOURCE-DENSITY-ANALYSIS
CURRENT SOURCE-DENSITY-ANALYSIS
CURRENT SOURCE-DENSITY-ANALYSIS
CURRENT SOURCE-DENSITY-ANALYSIS
CURRENT SOURCE-DENSITY-ANALYSIS
CURRENT SOURCE-DENSITY-ANALYSIS
CURRENT SOURCE-DENSITY-ANALYSIS
CURRENT SOURCE-DENSITY-ANALYSIS
CURRENT SOURCE-DENSITY-ANALYSIS
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