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In atomic physics, close coupling is a quantum mechanics method to calculate the multi-electronic atomic and molecular structure from fine structure to
Close_coupling
Degree of interdependence between software modules
In software engineering, coupling is the degree of interdependence between software modules, a measure of how closely connected two routines or modules
Coupling (computer programming)
Coupling_(computer_programming)
Aircraft configuration in which a small wing is placed in front of the main wing
close-coupled canards (which deliberately interact with the wing's flow to enhance lift and control), to remote canards intended to minimize coupling
Canard_(aeronautics)
Electrical circuit coupling using induction
coils and placing them close together on a common axis, so the magnetic field of one coil passes through the other coil. Coupling can also be increased
Inductive_coupling
Coupling for railway vehicles
Buffers and chain couplers (or couplings) – also known as "buffers and screw", "screw", and "screwlink" – are the de facto International Union of Railways
Buffers_and_chain_coupler
Mechanical connection between two objects
A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. The primary purpose of couplings is to
Coupling
Correlation used in NMR spectroscopy
are termed vicinal). The magnitude of these couplings are generally smallest when the torsion angle is close to 90° and largest at angles of 0 and 180°
Karplus_equation
Transfer of energy between circuits
Capacitive coupling is the transfer of energy within an electrical network or between distant networks by means of displacement current between circuit(s)
Capacitive_coupling
Mechanism for connecting rolling stock in a train
A coupling or coupler is a mechanism, typically located at each end of a rail vehicle, that connects them to form a train. The equipment that connects
Railway_coupling
Topics referred to by the same term
coupling, occurring when rotation frequency of an object is close to or identical to a natural internal vibration frequency Angular momentum coupling
Coupling_(disambiguation)
Swiss electrical freight locomotive
spring-loaded close coupling. Thus, the central body does not serve to transmit power from one motor frame to the other (see Locomotive body, below). The close coupling
SBB_Ce_6/8_II
Type of coupling
A Schmidt coupling is a type of coupling designed to accommodate large radial displacement between two shafts. Consisting of an arrangement of links and
Schmidt_coupling
Cross-coupling reaction used in organic synthesis
The Sonogashira reaction is a cross-coupling reaction used in organic synthesis to form carbon–carbon bonds. It employs a palladium catalyst as well as
Sonogashira_coupling
Process by which atoms or molecules acquire charge by gaining or losing electrons
non-perturbative. Methods like time-dependent coupled-channel or time independent close coupling – where the wave function is expanded in a finite basis set – are examples
Ionization
Triangle shaped aircraft wing configuration
the first time on the company's Viggen combat aircraft in 1967. The close coupling modifies the airflow over the wing, most significantly when flying at
Delta_wing
Organic compound (H–CHO); simplest aldehyde
America are available from the TEMPO instrument on Intelsat 40e. The close coupling between isoprene and formaldehyde has been widely used in top-down approaches
Formaldehyde
2000 British TV series
Coupling is a British television sitcom created and written by Steven Moffat that aired on BBC Two and BBC Three from 12 May 2000 to 14 June 2004. Produced
Coupling_(British_TV_series)
Activation of tension-generating sites in muscle
to contract. In skeletal muscles, excitation–contraction coupling relies on a direct coupling between two key proteins, the sarcoplasmic reticulum (SR)
Muscle_contraction
Theoretical framework
spectra in the theta band compared to healthy controls. This indicates a close coupling of cortex and thalamus in the generation of the pathological theta rhythmicity
Thalamocortical_dysrhythmia
Connector on the end of a hose
A hose coupling is a connector on the end of a hose to connect (or couple) it with another hose or with a tap or a hose appliance, such as an irrigation
Hose_coupling
Working party
power trained vehicles R101 — CO2 emission/fuel consumption R102 — Close coupling device (CCD) R103 — Replacement pollution control devices R104 — Retro-reflective
World Forum for Harmonization of Vehicle Regulations
World_Forum_for_Harmonization_of_Vehicle_Regulations
Power per volume
increased, attainable power density rose in parallel, reflecting the close coupling between these metrics. Successive energy crises and the resulting regulatory
Power_density
Form of nervous system communication
Look up ephaptic in Wiktionary, the free dictionary. Ephaptic coupling is a form of communication within the nervous system that is distinct from direct
Ephaptic_coupling
Microelectronics business model
continue to exist that perform both operations and benefit from the close coupling of their skills. Some companies manufacture some of their own designs
Foundry_model
Type of coupling used in NMR spectroscopy
nuclear chemistry and nuclear physics, J-couplings (also called spin-spin coupling or indirect dipole–dipole coupling) are mediated through chemical bonds
J-coupling
Software quality metric
Traditional coupling types typically include content coupling, common coupling, control coupling, stamp coupling, external coupling, and data coupling. Connascence
Connascence
Abrupt change in an aircraft's roll due to fuselage inertia
In aeronautics, inertia coupling, also referred to as inertial coupling and inertial roll coupling, is a potentially catastrophic phenomenon of high-speed
Inertia_coupling
German model railway manufacturer
PROFI label, which consists of the pre-ballasted track, PROFI couplings for true close coupling operation, and even the tilt technology found in both the
Fleischmann_(model_railroads)
Transformer used to scale alternating current, used as sensor for AC power
unaffected by the insertion of the CT. Accurate current transformers need close coupling between the primary and secondary to ensure that the secondary current
Current_transformer
Type of field where the net flow of electromagnetic energy is zero
power into the second medium. Coupling between two optical waveguides may be effected by placing the fiber cores close together so that the evanescent
Evanescent_field
Train of the Austrian Federal Railways
of these carriages is equipped with two wide entrances with centrally closing swing-sliding doors with pneumatic opening aid on each side of the carriage
ÖBB_Class_4020
Two systems are coupled if they are interacting with each other
In physics, coupling is when two objects are interacting with each other, that is they are not independent. In classical mechanics, coupling is a connection
Coupling_(physics)
Mechanism with bendable rotation axis
A universal joint (also called a universal coupling or U-joint) is a joint or coupling connecting rigid shafts whose axes are inclined to each other.
Universal_joint
Indian-American academic (born 1960)
3R’s, recognition, reconstruction and re-organization, emphasizing the close coupling between these. He was awarded the 2019 IEEE Computer Society’s Computer
Jitendra_Malik
Plasmon coupling is a phenomenon that occurs when two or more plasmonic particles approach each other to a distance below approximately one diameter's
Plasmon_coupling
American manufacturer and supplier of hose fittings and accessories
Dixon Valve & Coupling Company is an American manufacturer and supplier of hose fittings and accessories. The company, often referred to as just Dixon
Dixon Valve & Coupling Company
Dixon_Valve_&_Coupling_Company
Chemical reaction
The Hiyama coupling is a palladium-catalyzed cross-coupling reaction of organosilanes with organic halides used in organic chemistry to form carbon–carbon
Hiyama_coupling
Evaluation of a horse's bone and muscle structure
Long-coupling is associated with a long back and short hindquarters. This will limit collection is any discipline. Short coupling Also known as close coupled
Equine_conformation
Interaction between electronic and nuclear vibrational motion in a molecule
Vibronic coupling (also called nonadiabatic coupling or derivative coupling) in a molecule involves the interaction between electronic and nuclear vibrational
Vibronic_coupling
Poet and writer from Monaghan, Ireland
every poet to have a spare wife." Gogarty, who had taken offence at the close coupling of the words "wife" and "mistress", was awarded £100 in damages. The
Patrick_Kavanagh
Electrical transmission without physical connection
using inductive coupling between coils of wire, or by electric fields using capacitive coupling between metal electrodes. Inductive coupling is the most widely
Wireless_power_transfer
Radio technology devices
and also puts a limit on how close the lines can be placed to each other. This becomes a problem when very tight coupling is required and 3 dB couplers
Power dividers and directional couplers
Power_dividers_and_directional_couplers
Canadian zoologist and academic
headwater systems: headwaters differ from downstream reaches by their close coupling to hillslope processes, more temporal and spatial variation, and their
John S. Richardson (zoologist)
John_S._Richardson_(zoologist)
Semi-automatic railroad coupler
Knuckle couplers are a semi-automatic form of railway coupling that allow rail cars and locomotives to be securely linked together without workers having
Janney_coupler
Fuel from carbon monoxide and hydrogen
the Chevron Coal Liquefaction Process (CCLP). It is unique due to the close-coupling of the non-catalytic dissolver and the catalytic hydroprocessing unit
Synthetic_fuel
In statistical physics, mode-coupling theory (MCT) is a family of approximations for the dynamics of many-body systems. In MCT, a relaxation rate or transport
Mode-coupling_theory
South Korean reality dating series
Paradise with. 4 4 December 25, 2021 (2021-12-25) Ji-a and Si-hun become closer. Se-hoon is disappointed that he didn't get to go to Paradise. The contestants
Single's_Inferno
attached cables and power or signal lines, and (iii) near‑field coupling from devices in close proximity. Depending on waveform, exposure level, and target
Intentional electromagnetic interference
Intentional_electromagnetic_interference
Irish physician, writer and politician (1878–1957)
every poet to have a spare wife." Gogarty, who had taken offence at the close coupling of the words "wife" and "mistress", was awarded £100 in damages. With
Oliver_St._John_Gogarty
Term used in the 1990s to refer to the Internet
education, and informational commerce, making possible a new and closer coupling of the citizen to his society and culture, but from the retained privacy
Information_superhighway
Phenomenon with inductive coupling
Resonant inductive coupling or magnetic phase synchronous coupling is a phenomenon with inductive coupling in which the coupling becomes stronger when
Resonant_inductive_coupling
Negative regulation (or limiting) of body weight and cell proliferation
H19 promoter is no longer methylated and repressed. A reason for the close coupling of H19 and IGF2 expression may be that they share the same 3’ gene enhancer
H19_(gene)
Card trick and probabilistic concept
Dynkin–Kruskal count, Dynkin's counting trick, Dynkin's card trick, coupling card trick or shift coupling) is a probabilistic concept originally demonstrated by the
Kruskal_count
Process of converting coal into liquid hydrocarbons
the Chevron Coal Liquefaction Process (CCLP). It is unique due to the close-coupling of the non-catalytic dissolver and the catalytic hydroprocessing unit
Coal_liquefaction
diatomic molecule. I. Theoretical and numerical considerations for the close coupling approximation". The Journal of Chemical Physics. 63 (5): 1775–1782.
Kwong-Tin_Tang
Powering mechanism for lasers
failure. Smaller ellipses create fewer reflections, (a condition called "close-coupling"), giving higher intensity in the center of the rod. For a single flashlamp
Laser_pumping
Type of quark
elementary particles. It derives its mass from its coupling to the Higgs field. This coupling yt is very close to unity; in the Standard Model of particle physics
Top_quark
Heavy isotopes bonded to other heavy isotopes
with altitude throughout the troposphere (see lapse rate). Due to the close coupling between lake water temperature and air temperature, there is a similar
Clumped_isotopes
American mathematician and inventor
In contrast, transmitters operated by most other companies employed "close coupling" that produced signals on two separate frequencies). He also took special
John_Stone_Stone
Topics referred to by the same term
up decoupling or coupling in Wiktionary, the free dictionary. Decoupling usually refers to the ending, removal or reverse of coupling. Decoupling may also
Decoupling
English actor (born 2003)
2025. Power, Ed (9 February 2018). "Requiem, episode 2: an unexpected coupling and the lingering mystery man is revealed". The Daily Telegraph. Archived
Bella_Ramsey
Method to identify covarying pairs of amino acids in proteins
Statistical Coupling Analysis (SCA) is a method used in bioinformatics to study how pairs of amino acids in a protein sequence evolve together. It analyzes
Statistical_coupling_analysis
Medical diagnostic method
imaging (fMRI) and positron emission tomography (PET), fTCD is based on a close coupling between regional cerebral blood flow changes and neural activation.
Transcranial_Doppler
Very small tectonic plate in the southern Pacific Ocean
resolves into the East ridge outer pseudofault. As the Nazca plate has a close coupling to the northern boundary of the plate, rotation of the Juan Fernández
Juan_Fernández_plate
Cardiac excitation-contraction coupling (Cardiac EC coupling) describes the series of events, from the production of an electrical impulse (action potential)
Cardiac excitation-contraction coupling
Cardiac_excitation-contraction_coupling
Ukrainian-American theoretical and computational physicist
He-, Li- and Be-like ions, obtained by different methods, including close-coupling and distorted-wave approaches. Together with his supervisor and others
Oleg_Zatsarinny
Chemical reaction
step via a Heck reaction or cross coupling with an organoboron reagent to afford the final organic product and close the catalytic cycle. Steps of the
Catellani_reaction
Property of electrical conductors
unwanted coupling between conductors in a circuit. The mutual inductance, M i j {\displaystyle M_{ij}} , is also a measure of the coupling between two
Inductance
Railway incident in Lincolnshire, England
chains. The length of the trunks (up to 42 ft (13 m)) necessitated the close coupling of the waggons. The goods train was being shunted on a curve at low
1898 Wrawby Junction rail crash
1898_Wrawby_Junction_rail_crash
Cross-coupling reaction between two electrophiles
Cross electrophile coupling (XEC or sometimes CEC) is a type of cross-coupling reaction that occurs between two electrophiles. It is often catalyzed by
Cross_electrophile_coupling
Fitting used in plumbing and piping
Company, of Boston, is the company which first produced chase nipples. Coupling (piping) Piping and plumbing fitting Street elbow Zachariason, Rob (2012)
Nipple_(plumbing)
Compact astronomical body
99f1303N. doi:10.1103/PhysRevD.99.061303. Scardigli, Fabio (2000). "Gravity Coupling from Micro-Black Holes". Nuclear Physics B: Proceedings Supplements. 88
Black_hole
Group of chemical compounds
PEPPSI refers to a family of palladium catalysts for various cross-coupling reactions. In comparison to other palladium-based catalysts, Pd-PEPPSI-type
PEPPSI
based in Krefeld founded in 1922. The brand manufactures bolt couplings, hook couplings, drawbar eyes, underrun protections and accessories. Ringfeder
Ringfeder
Family of organopalladium compounds
"Structure–Activity Relationship Analysis of Pd–PEPPSI Complexes in Cross-Couplings: A Close Inspection of the Catalytic Cycle and the Precatalyst Activation Model"
Palladium–NHC_complex
Bibliographic coupling, like co-citation, is a similarity measure that uses citation analysis to establish a similarity relationship between documents
Bibliographic_coupling
British model railway brand
possible to replace standard tension lock coupling with close couplings such as Kadees or screw link couplings. The following locomotive models have been
Bachmann_Branchline
Part of an engine's ignition system
an engine is more difficult. Therefore, some magnetos have an impulse coupling, a spring-like mechanical linkage between the engine and magneto drive
Ignition_magneto
characteristic of agriculture (particularly subsistence agriculture) is the close coupling of its performance with prevailing biophysical conditions, conditions
HarvestChoice
Guidelines in object-oriented design
in GRASP are controller, creator, indirection, information expert, low coupling, high cohesion, polymorphism, protected variations, and pure fabrication
GRASP (object-oriented design)
GRASP_(object-oriented_design)
Signals in one channel affecting another
Crosstalk is usually caused by undesired capacitive, inductive, or conductive coupling from one circuit or channel to another. Where the electric, magnetic, or
Crosstalk
Russian anthropologist (born 1961)
global modernisation." In addition, Korotayev's research has revealed a close coupling between phases of global demographic transition and phases of the Great
Andrey_Korotayev
German sociologist (1927–1998)
people) on a given social system (a society), the so-called "structural coupling" of "partially interpenetrating systems". In fact Luhmann himself replied
Niklas_Luhmann
Spectroscopy of paramagnetic compounds via NMR
populations. Given the magnitude of the coupling, the Boltzmann distribution of these spin states is not close to 1:1, leading to net spin polarization
Paramagnetic nuclear magnetic resonance spectroscopy
Paramagnetic_nuclear_magnetic_resonance_spectroscopy
Hund's coupling cases are idealized descriptions of rotational states in which specific terms in the molecular Hamiltonian and involving couplings between
Hund's_cases
Relativistic interaction in quantum physics
the spin–orbit interaction (also called spin–orbit effect or spin–orbit coupling) is a relativistic interaction of a particle's spin with its motion inside
Spin–orbit_interaction
Aircraft motion combining rolling and yawing
"tail-wagging" (yaw) and rocking from side to side (roll). This yaw-roll coupling is one of the basic flight dynamic modes (others include phugoid, short
Dutch_roll
English actress, singer, and television presenter (born 1974)
SAG-AFTRA strike. Waddingham made her screen debut in an episode of the sitcom Coupling in 2002, and followed this with a recurring role in the soap opera Brookside
Hannah_Waddingham
German railway infrastructure and transport company
and a similar four-axle control car, which were firmly connected by a close coupling. There was a passage between the cars for the conductor. They carried
Upper_Rhine_Railway_Company
Spherical lens
of optical couplings over other types of lens because all that is necessary is to keep everything centered. Ball lenses for optical coupling are typically
Ball_lens
Clutch using viscous fluid to transfer torque
A viscous coupling is a sealed mechanical device that transfers torque and rotation between two shafts by means of a viscous fluid. One use is in automobiles
Viscous_coupling_unit
2026 TV series or program
(9 February 2026). "RTL Croatia heads for Love Island after ITV Studios closes remake deals". c21media.net. Archived from the original on 23 August 2026
Love_Island_Adria
Concept in theoretical physics
describe the interactions of the objects; they may be variable ("running") couplings which measure the strength of various forces, mass parameters, or the
Renormalization_group
Comprehensive physical model
larger gauge symmetry and thus several force carriers, but one unified coupling constant. Unifying gravity with the electronuclear interaction would provide
Grand_Unified_Theory
Locomotive wheel arrangement
and the narrow-gauge ÖBB 2095 [de], the bogie axles have been linked by coupling rods. Having only a single final-drive per bogie allows more room for the
Bo-Bo
Interpretation of sensory information
I (2 November 2023). "Low-Frequency Oscillations for Nonlocal Neuronal Coupling in Shared Intentionality Before and After Birth: Toward the Origin of Perception"
Perception
Japanese anime television series
Explorer. He was Dio's classmate and Coupling buddy during Couplers Training at Lake Louise. He is also capable of Coupling with Aoba. Elvira Hill (エルヴィラ・ヒル
Buddy_Complex
Notation in quantum physics
represent L = 0, 1, 2, or 3 respectively. For coupling schemes other that LS coupling, such as the jj coupling that applies to some heavy elements, other
Term_symbol
Trailer vehicle without a front axle
laterally. The two types of couplings are fifth-wheel coupling and automatic. In some applications, no separable coupling is fitted, and the trailer is
Semi-trailer
Chemical reaction used in organic synthesis
chemical reaction widely used in organic synthesis. The reaction involves the coupling of two organic groups, one of which is carried as an organotin compound
Stille_reaction
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CLOSE COUPLING
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CLOSE COUPLING
CLOSE COUPLING
CLOSE COUPLING
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