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The active reflection coefficient (ARC) is the reflection coefficient for a single antenna element in an array antenna, in the presence of mutual coupling
Active_reflection_coefficient
The total active reflection coefficient (TARC) within mathematics and physics scattering theory, relates the total incident power to the total outgoing
Total active reflection coefficient
Total_active_reflection_coefficient
Measure used in radio engineering and telecommunications
loss Return loss SWR meter Time-domain reflectometer Total active reflection coefficient Knott, Eugene F.; Shaeffer, John F.; Tuley, Michael T. (2004)
Standing_wave_ratio
Set of multiple antennas which work together
the worst possible excitations. Digital antenna array Total active reflection coefficient Wikimedia Commons has media related to Array antennas. Carr
Antenna_array
Topics referred to by the same term
secreted protein of the immune system, also known as CCL17 Total active reflection coefficient, a measure of multi-port radio antennas Transit Authority of
TARC
Tendency of matter to change volume in response to a change in temperature
strain) divided by the change in temperature is called the material's coefficient of linear thermal expansion. For small temperature changes, this is nearly
Thermal_expansion
Electrical engineers graphical calculator
reference impedance, Z0. The Smith chart is plotted on the complex reflection coefficient plane in two dimensions and may be scaled in normalised impedance
Smith_chart
Adjusting input/output impedances of an electrical circuit for some purpose
The voltage reflection coefficient and current reflection coefficient on the same side have opposite signs. Voltage reflection coefficients on opposite
Impedance_matching
Spectroscopy technique
than reflection, and considered scatter to be in all directions. He used the symbols k and s for absorption and isotropic scattering coefficients, and
Diffuse reflectance spectroscopy
Diffuse_reflectance_spectroscopy
Values which describe behavior of a linear electric circuit
such as gain, return loss, voltage standing wave ratio (VSWR), reflection coefficient and amplifier stability. The term 'scattering' is more common to
Scattering_parameters
Physical process by which matter takes up a photon's energy and stores it
"absorption coefficient")[citation needed] The Molar attenuation coefficient (also called "molar absorptivity"), which is the absorption coefficient divided
Absorption (electromagnetic radiation)
Absorption_(electromagnetic_radiation)
Precision coaxial connector
18 GHz. APC-7 connectors are advantageous because they have a low reflection coefficient, make repeatable coaxial connections, and are genderless. The connectors
APC-7_connector
Property of waves that can oscillate with more than one orientation
actual reflection coefficient (which requires careful photometric calibration of the illuminating beam) but the ratio of the p and s reflections, as well
Polarization_(waves)
Strength of an object's radar echo
one-dimensional reflection calculations to calculate the surface impedance, then two dimensional numerical calculations to calculate the diffraction coefficients of
Radar_cross_section
Type of distributed Bragg reflector constructed in a short segment of optical fiber
The fundamental principle behind the operation of an FBG is Fresnel reflection, where light traveling between media of different refractive indices may
Fiber_Bragg_grating
Change in optical properties of a material due to stress
_{1}-\sigma _{2})} where Δ is the induced retardation, C is the stress-optic coefficient, t is the specimen thickness, λ is the vacuum wavelength, and σ1 and
Photoelasticity
Acoustic sensing method
region long after the conflict has ceased. The sound reflection characteristics of the target of an active sonar, such as a submarine, are known as its target
Sonar
Central object in linear algebra; mapping vectors to vectors
multiplication complexity reduces to n. Being diagonal means that all coefficients a i , j {\displaystyle a_{i,j}} except a i , i {\displaystyle a_{i,i}}
Transformation_matrix
British political discussion group
The Coefficients was a monthly dining club founded in 1902 by the Fabian campaigners Sidney and Beatrice Webb as a forum for British socialist reformers
Coefficients_(dining_club)
Property that an increasing voltage results in a decreasing current
in the opposite direction, toward the resonator part. The reflection coefficient of the active device Γ N = V 2 / V 1 {\displaystyle \Gamma _{N}=V_{2}/V_{1}}
Negative_resistance
Electronic device
are passive structures that in principle have identically zero reflection coefficient at all frequencies. Such structures may be synthesized with lumped
Electronic_filter
Property in optics
are coefficients that can be determined for a material by fitting the equation to measured refractive indices at known wavelengths. The coefficients are
Refractive_index
Obtaining information through non-contact sensors
split into "active" remote sensing (when a signal is emitted by a sensor mounted on a satellite or aircraft to the object and its reflection is detected
Remote_sensing
Area around vehicle that cannot be directly observed by the driver while at the controls
the less space the door opening has, and the greater frontal area and coefficient of drag the vehicle will have. Examples of cars with an almost vertical
Vehicle_blind_spot
Optical filter
retained in the limit. For dual FSS, the reflection coefficient of the patch will be equal to the transmission coefficient of the mesh. Circuit duality The dual
Frequency_selective_surface
Method of conducting social research
cultural data we call the humanistic coefficient, because such data, as objects of the student's theoretic reflection, already belong to somebody's else's
Humanistic_coefficient
mirror with reflection coefficient greater than unity. An active mirror is a thin disk-shaped double-pass optical amplifier. The first active mirrors were
Disk_laser
Infrared imaging used to reveal temperature
with an emissivity coefficient of 0.02. An example of a substance with high emissivity would be asphalt, with an emissivity coefficient of .98. A black body
Thermography
Light-conducting fiber
refraction. Light is kept in the core by the phenomenon of total internal reflection which causes the fiber to act as a waveguide. Fibers that support many
Optical_fiber
Statistical method
between lasso coefficient estimates and so-called soft thresholding. It also reveals that (like standard linear regression) the coefficient estimates do
Lasso_(statistics)
matrix analysis Reflecting telescope Reflection (optics) Refracting telescope Refraction Reflection coefficient Refractive index Refractometer Retroreflector
Index_of_optics_articles
Type of analog or digital filter
fractions of the impedance function, which may be derived from the reflection coefficient, which in turn may be derived from the transfer function. To design
Chebyshev_filter
Optical device with parallel mirrors
preferred because it has greater heat conduction and still has a low coefficient of expansion. In 2005, some telecommunications equipment companies began
Fabry–Pérot_interferometer
Simulation of light in computer graphics
the intensity of the specular lighting component and the specular reflection coefficient of the surface. Lighting models are used to replicate lighting effects
Computer_graphics_lighting
Device for measuring a physical quantity
thermometer principle: relation between temperature and volume of a liquid (coefficient of thermal expansion). Alcohol thermometer Mercury-in-glass thermometer
List_of_measuring_instruments
Using sunlight for internal lighting
expressed by its VT coefficient (Visual Transmittance), also known as visual light transmittance (VLT). As the name suggests, this coefficient measures how much
Daylighting_(architecture)
Data acquisition method for earth sciences
overall reflectance increases as diffuse reflection, instead of specular reflection, dominates. Specular reflection by smooth surface, for example calm water
Remote_sensing_in_geology
Type of radio propagation
receiver through reflection from objects, diffraction around edges, scattering, propagation through a lossy material, or by an active or passive relay
Non-line-of-sight_propagation
Type of large language model
Archived from the original on June 4, 2023. Retrieved April 26, 2023. "Reflections on Foundation Models". hai.stanford.edu. October 18, 2021. Archived from
Generative pre-trained transformer
Generative_pre-trained_transformer
Chemical element with atomic number 8 (O)
Fertility of Sea Waters by H.W. Harvey, 1955, citing C.J.J. Fox, "On the coefficients of absorption of atmospheric gases in sea water", Publ. Circ. Cons. Explor
Oxygen
Battery electric mid-size luxury SUV
Counts，提升 14km 续航 [Xiaomi Motors: YU7's 100-step active air intake grille can reduce the vehicle's drag coefficient by 18 counts and increase its range by 14km
Xiaomi_YU7
Type of feedforward neural network
kernel coefficients directly from images of hand-written numbers. Learning was thus fully automatic, performed better than manual coefficient design,
Convolutional_neural_network
Object detection system using radio waves
Gr = gain of receiving antenna σ = radar cross section, or scattering coefficient, of the target F = pattern propagation factor Rt = distance from the
Radar
Pressure exerted upon any surface exposed to electromagnetic radiation
the reflection coefficient of intensity), so that the increase is less than double. For a diffusely reflective surface, the details of the reflection and
Radiation_pressure
Battery electric full-size sedan
dampers, an active shutter grille, and an active rear wing with four adjustment levels on higher end models. The company claims the drag coefficient of the
Xiaomi_SU7
1887 investigation of the speed of light
were all negative. This could be explained by using Fresnel's dragging coefficient, according to which the aether and thus light are partially dragged by
Michelson–Morley_experiment
Range of EM wavelengths that can pass through Earth's atmosphere
the radio windows. Both active (signal emitted by satellite or aircraft, reflection detected by sensor) and passive (reflection of sunlight detected by
Atmospheric_window
Experiment measuring the speed of light in moving water
Lorentz's modified coefficient. In 1910, Franz Harress used a rotating device and overall confirmed Fresnel's dragging coefficient. However, he additionally
Fizeau_experiment
Polarization state
and s linear polarizations are found by applying the Fresnel coefficients of reflection, which are generally different for those two linear polarizations
Circular_polarization
Type of intelligence gathering
sounds is scattered, and this is taken into account by assigning a reflection coefficient whose magnitude is less than one. Rather than measuring surface
Geophysical_MASINT
Intensity ( I {\displaystyle I} ) is related to the magnitude of the reflection coefficient ( R {\displaystyle R} ) and the phase component ω ( λ A r + λ r
Seismic_interferometry
Smallest amount of fissile material needed to sustain a nuclear reaction
expansion associated with temperature increase also contributes a negative coefficient of reactivity since fuel atoms are moving farther apart. A mass that
Critical_mass
Small container used in laboratories
a light path of 10 mm (3⁄8 in), which simplifies calculation of the coefficient of absorption. Most cuvettes have two transparent sides opposite one
Cuvette
Algorithm for supervised learning of binary classifiers
Learning with humans Active learning Crowdsourcing Human-in-the-loop Mechanistic interpretability RLHF Model diagnostics Coefficient of determination Confusion
Perceptron
Physical structure for guiding sound waves
introduction of physically measurable acoustic characteristics, reflection coefficients, material constants of insulation material, the influence of air
Acoustic_waveguide
Type of differential equation
examples of harmonic functions are of such different forms. This is a reflection of the fact that they are not special cases of a "general solution formula"
Partial_differential_equation
History of physical crystallography to 1895
polarization, conical refraction, absorption and pleochroism, luminescence, reflection from opaque materials, and infrared optics. The effect of electricity
Physical crystallography before X-rays
Physical_crystallography_before_X-rays
Type of optical fiber
is taken to be circular) α {\displaystyle \alpha } is the absorption coefficient of pump light in the core L {\displaystyle L} is the length of the double-clad
Double-clad_fiber
Branch of physics that studies light
positions and magnifications. Reflections can be divided into two types: specular reflection and diffuse reflection. Specular reflection describes the gloss of
Optics
equal to about 1 d Active DIN 939 Studs with a length of engagement equal to about 1,25 d Active DIN 946 Determination of coefficient of friction of bolt/nut
List_of_DIN_standards
Variation in the time intervals between heartbeats
considered the gold standard for HRV measurement because it provides a direct reflection of cardiac electric activity. Variability (or Variation) in the beat-to-beat
Heart_rate_variability
Physical property of allowing light
of visual appearance, related to the perception of regular or diffuse reflection and transmission of light, have been organized under the concept of cesia
Transparency_and_translucency
cavity. The active region and the substrate region have absorption coefficient α and αex respectively. The field reflection coefficients of the front
Resonant-cavity-enhanced photo detector
Resonant-cavity-enhanced_photo_detector
Array of antennas creating a steerable beam
imaging scanners (phased array ultrasonics), oil and gas prospecting (reflection seismology), and military sonar systems. The term "phased array" is also
Phased_array
Matrix representing a Euclidean rotation
rotation combines a proper rotation with reflections (which invert orientation). In other cases, where reflections are not being considered, the label proper
Rotation_matrix
Smallest type of blood vessel
pressure (πc) Interstitial oncotic pressure (πi) Filtration coefficient (Kf) Reflection coefficient (σ) Disorders of capillary formation as a developmental
Capillary
Device that emits light via optical amplification
who derived the relationship between the A coefficient, describing spontaneous emission, and the B coefficient which applies to absorption and stimulated
Laser
Object that reflects an image
they strike the mirror (incident light). This property, called specular reflection, distinguishes a mirror from objects that diffuse light, breaking up the
Mirror
Modes of vibration in mathematics
conjecture S. Bedo; W. Luthy; H. P. Weber (1993). "The effective absorption coefficient in double-clad fibers". Optics Communications. 99 (5–6): 331–335. Bibcode:1993OptCo
Dirichlet_eigenvalue
Mineral (hydrated sodium calcium borate hydroxide)
optical fibers, transmitting light along their long axes by internal reflection. When a piece of ulexite is cut with flat polished faces perpendicular
Ulexite
Light-stabilizing technique
where r1 and r2 are the reflection coefficients of mirrors 1 and 2 of the cavity, and t1 and t2 are the transmission coefficients of the mirrors. Applying
Pound–Drever–Hall_technique
Personality trait
characterized introverts as people whose energy tends to expand through reflection and dwindle during interaction. This is similar to Jung's view, although
Extraversion_and_introversion
polynomial with real coefficients is a problem that has received much attention since the beginning of 19th century, and is still an active domain of research
Polynomial_root-finding
Cable assembly containing one or more optical fibers that are used to carry light
consists of a core and a cladding layer, selected for total internal reflection due to the difference in the refractive index between the two. In practical
Fiber-optic_cable
between the phases according to its partition coefficient which is also called the distribution coefficient, distribution constant, or partition ratio and
Countercurrent_chromatography
History of crystallography to 1895
(has a negative coefficient of thermal expansion) in a direction perpendicular to the trigonal axis while expanding (positive coefficient) along that axis
History of crystallography before X-rays
History_of_crystallography_before_X-rays
Type of artificial neural network
reflection. Translation is a change in location in one or more dimensions. Rotation is a change in orientation. Scale is a change in size. Reflection
Capsule_neural_network
Method of spatial measurement using laser
densities of clouds, cloud particle properties (extinction coefficient, backscatter coefficient, depolarization), temperature, pressure, wind, humidity,
Lidar
Electric charge generated in certain solids due to mechanical stress
In the equation above, they must be engineering strains for the 6,6 coefficient of the compliance matrix to be written as shown, i.e., 2(sE 11 − sE 12)
Piezoelectricity
Poverty aid organizations and social development groups have remained active in Mexico. Despite foreign and national aid programs in the country, the
Poverty_in_Mexico
Waves or particles moving through space
(1999), Federal Guidance Report 13, page 16: "For example, the ingestion coefficient risk for 40K would not be appropriate for an application to ingestion
Radiation
Chemical element with atomic number 83 (Bi)
is an area of active research. Chemistry portal Bismuth minerals Arsenic-bismuth The thermal expansion is anisotropic: the coefficients for each crystal
Bismuth
Numerical optimization algorithm
{\displaystyle \sigma } are respectively the reflection, expansion, contraction and shrink coefficients. Standard values are α = 1 {\displaystyle \alpha
Nelder–Mead_method
Study of the propagation of sound in water
assigning a reflection coefficient whose magnitude is less than one. For example, close to normal incidence, the reflection coefficient becomes R = −
Underwater_acoustics
Ratio of energy extracted from sunlight in solar cells
gives insight into the internal material parameters like the absorption coefficient or internal luminescence quantum efficiency. IQE is mainly used to aid
Solar-cell_efficiency
Deep learning method
_{\text{trans}}} samples identity-transform with probability 0.5, and horizontal-reflection with probability 0.5, then μ ref ′ {\displaystyle \mu _{\text{ref}}'}
Generative adversarial network
Generative_adversarial_network
Signal processing filter
where phase shifts occur. To create an all-pass implementation with real coefficients, the complex all-pass filter can be cascaded with an all-pass that substitutes
All-pass_filter
Plane curve
more rapidly. It is most concisely written in terms of the binomial coefficient with n = 1 / 2 {\displaystyle n=1/2} : C π ( a + b ) = ∑ n = 0 ∞ ( 1
Ellipse
Mathematical transform that expresses a function of time as a function of frequency
expansion as a trigonometric integral, or a Fourier integral expansion. The coefficient functions a and b can be found by using variants of the Fourier cosine
Fourier_transform
Device that orients a payload towards the Sun
increasing path length is referred to as the air mass (AM) or air mass coefficient, where AM0 is at the top of the atmosphere, AM1 refers to the direct
Solar_tracker
Type of statistical analysis
FCS can be used to obtain quantitative information such as diffusion coefficients hydrodynamic radii average concentrations kinetic chemical reaction rates
Fluorescence correlation spectroscopy
Fluorescence_correlation_spectroscopy
1971 book by Saul Alinsky
University of Chicago professor, Robert Park, who saw communities as "reflections of the larger processes of an urban society". The methods Alinsky developed
Rules_for_Radicals
Type of radar system
worked when the radar antenna was not pointed down; in that case the reflection off the ground overwhelmed any returns from other objects. As the ground
Pulse-Doppler_radar
Chemical compound found in some species of mushrooms
Accordingly, bufotenin is less lipophilic than psilocin in terms of partition coefficient. But bufotenin does still show significant central permeability and,
Psilocybin
Natural internal process that regulates the sleep-wake cycle
temperature compensation. The Q10 temperature coefficient is a measure of this compensating effect. If the Q10 coefficient remains approximately 1 as temperature
Circadian_rhythm
Meteorological instrumentation
light beam is quantified as an attenuation coefficient. Any departure from the clear air extinction coefficient (e.g. in fog) is measured and is inversely
Scatterometer
Device used to produce electricity from light
electricity yields compared to the monofacial counterparts for a ground albedo coefficient of 25% (typical for concrete and vegetation groundcovers). However, the
Solar_cell
Thin layer of material
substrate surface. The interaction is characterized by the sticking coefficient, the fraction of incoming species thermally equilibrated with the surface
Thin_film
Special glass type used for optical systems
due to their very high refractive index, which results in a high reflection coefficient. This group can be divided into two families: glasses that can be
Optical_glass
Integral polynomial
these coefficients for arbitrary Coxeter groups. Combinatorial properties of Kazhdan–Lusztig polynomials and their generalizations are a topic of active current
Kazhdan–Lusztig_polynomial
ACTIVE REFLECTION-COEFFICIENT
ACTIVE REFLECTION-COEFFICIENT
Boy/Male
Hindu
Reflection
Boy/Male
Hindu, Indian, Punjabi, Sanskrit, Sikh
Thought; Reflection
Boy/Male
Tamil
Reflection through study
Boy/Male
Buddhist, Indian, Japanese
Ancient Reflection
Girl/Female
Bengali, Hindu, Indian
Reflection; Mirror
Boy/Male
Hindu, Indian
Our Reflection
Boy/Male
Tamil
Reflection
Boy/Male
Hindu
Reflection
Girl/Female
Tamil
Reflection, Image, Radiance
Boy/Male
Hindu, Indian
Perception; Reflection
Girl/Female
Hindu, Indian
Reflection
Boy/Male
Indian
Reflection; Gnawing Reflection
Girl/Female
Japanese
Mirror reflection.
Girl/Female
Tamil
Reflection, Image, Radiance
Girl/Female
Arabic, Assamese, Australian, Hindu, Indian, Marathi, Muslim, Sindhi
Mirror; Reflection
Boy/Male
Tamil
Gunjik | கà¯à®¨à¯à®œà¯€à®•
Reflection
Gunjik | கà¯à®¨à¯à®œà¯€à®•
Girl/Female
Indian, Malayalam
Reflection
Boy/Male
Bengali, Hindu, Indian
Image; Reflection
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Oriya, Tamil, Telugu
Reflection; Outlook; Reflection Reflection
Male
English
English pet form of Celtic Arthur, possibly ARTIE means "bear-man."Â
ACTIVE REFLECTION-COEFFICIENT
ACTIVE REFLECTION-COEFFICIENT
Boy/Male
Hindu
Skillfulness
Girl/Female
Irish Scottish American English
Abbreviation of Christine. Follower of Christ.
Girl/Female
Muslim
Pretty flower
Boy/Male
British, Indian, Indonesian
Beautiful Like a Swan
Girl/Female
Muslim
Gentleness, Softness, Tender
Boy/Male
Indian
One who is Loved by God
Boy/Male
Indian
King of Solar System
Female
Native American
Native American Miwok name SULETU means "flies."
Girl/Female
Arabic
Truth
Girl/Female
Biblical
Book, scribe, number.
ACTIVE REFLECTION-COEFFICIENT
ACTIVE REFLECTION-COEFFICIENT
ACTIVE REFLECTION-COEFFICIENT
ACTIVE REFLECTION-COEFFICIENT
ACTIVE REFLECTION-COEFFICIENT
a.
The act of choosing; choice; selection.
a.
Implying or producing rapid action; as, an active disease; an active remedy.
a.
Having the power or quality of acting; causing change; communicating action or motion; acting; -- opposed to passive, that receives; as, certain active principles; the powers of the mind.
a.
Given to action; constantly engaged in action; energetic; diligent; busy; -- opposed to dull, sluggish, indolent, or inert; as, an active man of business; active mind; active zeal.
n.
The return of rays, beams, sound, or the like, from a surface. See Angle of reflection, below.
n.
A part reflected, or turned back, at an angle; as, the reflection of a membrane.
a.
Requiring or implying action or exertion; -- opposed to sedentary or to tranquil; as, active employment or service; active scenes.
n.
Election beforehand.
n.
See Reflection.
n.
The act of reflecting, or turning or sending back, or the state of being reflected.
n.
A device for reflecting sound.
a.
In action; actually proceeding; working; in force; -- opposed to quiescent, dormant, or extinct; as, active laws; active hostilities; an active volcano.
n.
Want of reflection.
n.
That which is produced by reflection.
a.
Given to action rather than contemplation; practical; operative; -- opposed to speculative or theoretical; as, an active rather than a speculative statesman.
a.
Given to reflection or serious consideration; reflective; contemplative; as, a reflecting mind.
n.
A reflecting telescope.
n.
An image given back from a reflecting surface; a reflected counterpart.
a.
Throwing back images; as, a reflective mirror.
n.
Election a second time, or anew; as, the reelection of a former chief.