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Gradual loss of flux intensity through a medium
physics, attenuation is the gradual loss of flux intensity through a medium. For instance, dark glasses attenuate sunlight, lead attenuates X-rays, and
Attenuation
Topics referred to by the same term
attenuation of seismic energy in the Earth Attenuation (or verb attenuate) may also refer to: Attenuation (botany) Attenuation (brewing), the percent of sugar converted
Attenuation_(disambiguation)
Vaccine that uses a weakened form of the germ
the virulence of a pathogen, but still keeping it viable (or "live"). Attenuation takes an infectious agent and alters it so that it becomes harmless or
Attenuated_vaccine
Topics referred to by the same term
case of a car crash. Attenuation (disambiguation) This disambiguation page lists articles associated with the title Attenuator. If an internal link incorrectly
Attenuator
Amount of sugar converted to alcohol
brewing, attenuation refers to the conversion of sugars into alcohol and carbon dioxide by the fermentation process; the greater the attenuation, the more
Attenuation_(brewing)
Light or sound absorption in a substance
The linear attenuation coefficient, attenuation coefficient, or narrow-beam attenuation coefficient characterizes how easily a volume of material can be
Attenuation_coefficient
Non-flat frequency response
or the frequency spectrum of the signal. Attenuation distortion occurs when some frequencies are attenuated more than other frequencies. When an analog
Attenuation_distortion
Property of materials
The mass attenuation coefficient, or mass narrow beam attenuation coefficient of a material is the attenuation coefficient normalized by the density of
Mass_attenuation_coefficient
Measure of energy loss as sound waves propagate through a medium
effect can be quantified through the Stokes's law of sound attenuation. Sound attenuation may also be a result of heat conductivity in the media as has
Acoustic_attenuation
Light-conducting fiber
with 17 dB/km attenuation by doping silica glass with titanium. A few years later, they produced a fiber with only 4 dB/km attenuation using germanium
Optical_fiber
Growth attenuation is an elective medical treatment which involves administering estrogen to cause closure of the epiphyses of the bones (Epiphyseal plates)
Growth_attenuation
Device used to reduce the power level of an optical signal
unintended attenuation Optical fiber cable Optical fiber connector Optical power meter "The FOA Reference For Fiber Optics - Using Attenuators With Fiber
Optical_attenuator
HVAC noise control treatment
to its noise attenuation performance, whereby greater attenuation usually equates to greater pressure drop. Prefabricated sound attenuators rose to prominence
Sound_attenuator
Regulatory mechanism
example of attenuation used in many introductory genetics textbooks, is ribosome-mediated attenuation of the trp operon. Ribosome-mediated attenuation of the
Attenuator_(genetics)
Ultrasound attenuation spectroscopy is a method for characterizing properties of fluids and dispersed particles. It is also known as acoustic spectroscopy
Ultrasound attenuation spectroscopy
Ultrasound_attenuation_spectroscopy
Measurement that represents the overall performance of a cable
attenuation to near-end crosstalk for each combination of cable pairs. ACR is expressed as a figure in decibels (dB), between the signal attenuation produced
Attenuation-to-crosstalk ratio
Attenuation-to-crosstalk_ratio
Theory of selective attention
Attenuation theory, also known as Treisman's attenuation model, is a theory of selective attention proposed by psychologist Anne Treisman that explains
Attenuation_theory
Type of electronic component
impedances are the same, voltage attenuation will be the square root of power attenuation, so, for example, a 6 dB attenuator that reduces power to one fourth
Attenuator_(electronics)
Waveguide component
The flap attenuator or resistive-card attenuator is a flap-type waveguide attenuator that allows for precise and continuous attenuation of electromagnetic
Flap_attenuator
Logarithm of ratio of incident to transmitted radiant power through a sample
contribute to attenuation of the beam passing through the sample. The term "internal absorbance" is sometimes used to describe beam attenuation caused by
Absorbance
Formula for sound intensity loss in a Newtonian fluid
In acoustics, Stokes's law of sound attenuation is a formula for the attenuation of sound in a Newtonian fluid, such as water or air, due to the fluid's
Stokes's law of sound attenuation
Stokes's_law_of_sound_attenuation
Safety device in traffic management used to soften the blows of car crashes
used liquor barrels filled with sand to create the necessary impact attenuation, then personally crashed reinforced vehicles into them while recording
Impact_attenuator
advantageous to derive the attenuation due to rain at the higher frequency, called target frequency, by properly scaling concurrent attenuation measurements affecting
Rain attenuation frequency scaling
Rain_attenuation_frequency_scaling
Physical process by which matter takes up a photon's energy and stores it
effect of the absorption of electromagnetic radiation is attenuation of the radiation; attenuation is the gradual reduction of the intensity of light waves
Absorption (electromagnetic radiation)
Absorption_(electromagnetic_radiation)
Type of wave
{\displaystyle \ \rho ~~~} is the mass density of the medium. The attenuation of a wave in a medium describes the loss of energy a wave carries as
Longitudinal_wave
Measure of change in amplitude and phase of a wave
telecommunications, the term attenuation constant, also called attenuation parameter or attenuation coefficient, is the attenuation of an electromagnetic wave
Propagation_constant
1995 science fiction film
virtual Internet, which has created a degenerative effect called "nerve attenuation syndrome" or NAS. Megacorporations control much of the world, intensifying
Johnny_Mnemonic_(film)
Physiological phenomenon impacting the human liver
Transient hepatic attenuation differences (THAD) are areas of enhancement during the arterial phase of contrast CT of the liver. THAD is thought to be
Transient hepatic attenuation differences
Transient_hepatic_attenuation_differences
Operon that codes for the components for production of tryptophan
factor of 70, attenuation can further decrease it by a factor of 10, thus allowing accumulated repression of about 700-fold. Attenuation is made possible
Trp_operon
Device to protect ears from loud noises
provide the proper attenuation level, and the device will need to be replaced. Noise attenuation can be verified using real-ear attenuation at threshold (REAT)
Earplug
Medical imaging technique
"T2-FLAIR". Questions and Answers in MRI. Retrieved 2024-06-14. "Fluid attenuation inversion recovery | Radiology Reference Article | Radiopaedia.org".
Fluid-attenuated inversion recovery
Fluid-attenuated_inversion_recovery
signals that would be attenuated to nothing during the day will be received much further away at night. The specific amount of attenuation can be derived as
Ionospheric_absorption
Range of wavelengths from 650 to 1350 nanometre
tissue, the attenuation coefficient (mainly the scattering coefficient) is modified due to changes in refractive index mismatches Attenuation of light in
Near-infrared window in biological tissue
Near-infrared_window_in_biological_tissue
is complicated by anelastic attenuation because it is superimposed upon the AVO effects. The rate of anelastic attenuation itself also contains additional
Anelastic_attenuation_factor
Scientific law describing absorption of light
of the Beer–Lambert law states that the total attenuation can be obtained by integrating the attenuation coefficient over small slices dz of the beamline:
Beer–Lambert_law
Test for determining the effectiveness hearing protection devices
or earmuff. Fit testing is necessary because noise attenuation varies across individuals. Attenuation can sometimes score as zero due to anatomical differences
Hearing protection fit-testing
Hearing_protection_fit-testing
Physics concept
is the attenuation coefficient or Napierian attenuation coefficient of that material at z, and if α(z) is uniform along the path, the attenuation is said
Optical_depth
Gigabit passive optical network system
allocation mechanism defined in the transmission convergence layer. Attenuation classes in GPON define the allowable optical loss budget between the
GPON
Medical imaging procedure
according to the mean attenuation of the tissue(s) that it corresponds to on a scale from +3,071 (most attenuating) to −1,024 (least attenuating) on the Hounsfield
CT_scan
monitored natural attenuation, because environmental agencies check soil and water for the contaminant levels over time. Natural attenuation occurs through
Natural_attenuation
Type of analog or digital filter
attenuation to a desired value, and for the same reasons. Setting the Chebyshev II cutoff attenuation is the same as for Chebyshev cutoff attenuation
Chebyshev_filter
Physical property of allowing light
for our physical observation. This is what gives rise to color. The attenuation of light of all frequencies and wavelengths is due to the combined mechanisms
Transparency_and_translucency
Type of analog linear filter in electronics
standard set attenuation value for Bessel filters. However, −3.0103 dB is a common choice. Some applications may use a higher or lower attenuation such as
Bessel_filter
Sensory deprivation tank
tank, float tank, float pod, float cabin, flotation tank, or sensory attenuation tank is a water filled, pitch-black, light-proof, soundproof environment
Isolation_tank
Measure of how strongly a chemical species absorbs a given wavelength of light
coefficient or molar attenuation coefficient (ε) is a measurement of how strongly a chemical species absorbs, and thereby attenuates, light at a given wavelength
Molar_absorption_coefficient
Radio frequency absorption
(those on the Earth's surface). The rain attenuation on satellite communication can be predicted using rain attenuation prediction models which lead to a suitable
Rain_fade
Calculation for attenuation of radio signals
deviations that contribute to the total attenuation of the signal. The statistical estimates or attenuation variables of this prediction model are: I)
Longley–Rice_model
How deeply visible light penetrates through water
lost is the beam attenuation. Beam attenuation is essentially the opposite of light transmission. Clearer water with a low beam attenuation coefficient will
Water_clarity
Controversial 1997 set of child medical procedures
combination of growth attenuation therapy and surgical procedures, and Tom, the first publicly reported boy to receive growth attenuation therapy. Although
Ashley_Treatment
Effectiveness of a material in transmitting radiant energy
of the beam of light through the material sample. Attenuation cross section and molar attenuation coefficient are related by ε i = N A ln 10 σ i ,
Transmittance
Non-destructive material testing using ultrasonic waves
the scattering attenuation coefficient depends mainly on the grain size; Zeng et al, figured out that in pure Niobium, attenuation is linearly correlated
Ultrasonic_testing
Amount of air seen through in astronomical observations
atmosphere, light is attenuated by scattering and absorption; the thicker atmosphere through which it passes, the greater the attenuation. Consequently, celestial
Air_mass_(astronomy)
Ear-protecting headgear worn over ears to protect from cold or loud noise
decrease the attenuation. Active noise reduction earmuffs incorporate electronic noise cancellation or active noise cancellation to attenuate (roughly 26 dB
Earmuffs
Electrical circuit
_{\mathrm {L} }}} For an attenuator, Z and Y are simple resistors and γ becomes the image parameter attenuation (that is, the attenuation when terminated with
Π_pad
Radiological sign of the abdomen
represents a non-specific radiological finding characterized by increased attenuation within the mesenteric fat on computed tomography (CT) imaging. It reflects
Misty_mesentery_sign
Power Attenuator (Guitar Amplifier)
speaker, a power attenuator reduces the volume without altering the overdriven quality of the tone. The most common approach to power attenuation is a power
Power_attenuator_(guitar)
RNA family
are known to be regulated by this attenuation. The formation of the terminator requires the trp RNA-binding attenuation protein (TRAP protein) in species
Tryptophan_operon_leader
Diagnostic test for bone mineral density testing
linear attenuation coefficient. For DXA, the above equation is often expressed in terms of the mass attenuation coefficient (the attenuation coefficient
Dual-energy X-ray absorptiometry
Dual-energy_X-ray_absorptiometry
Star at the centre of the Solar System
atmospheric dust, and high humidity contribute to this atmospheric attenuation. Solar ultraviolet radiation ionises Earth's dayside upper atmosphere
Sun
Data structure for approximate set membership
and attenuated Bloom filters locally. The regular or local Bloom filter indicates which services are offered by the node itself. The attenuated filter
Bloom_filter
Protection device for auditory organs
actual attenuation of the device as it is worn for an individual. These tests for checking attenuation values summarize the real-world attenuation in a
Hearing_protection_device
Medical diagnostic method
pre-set attenuation factors. Disadvantages of this method include a lack of bone attenuation and loss of the true continuous range of attenuation factors
PET/MRI
mass attenuation coefficient, also called mass extinction coefficient, is the attenuation coefficient divided by density; see mass attenuation coefficient
Mathematical descriptions of opacity
Mathematical_descriptions_of_opacity
determining certain optical fiber transmission characteristics, such as attenuation and bandwidth. The measurement technique consists of: performing the
Cutback_technique
Medical imaging technique
Poisson likelihood function but do not involve such a prior. Attenuation correction: Attenuation occurs when photons emitted by the radiotracer inside the
Positron_emission_tomography
rating of how well a building floor attenuates impact sounds, such as footsteps. A larger number means more attenuation. The scale, like the decibel scale
Impact_insulation_class
Configurable attenuation circuit
switches, designed to create an attenuation from an input to an output signal, where the logarithm of the attenuation ratio is proportional to a binary
Logarithmic_resistor_ladder
30–300 GHz range of the electromagnetic spectrum
are attenuated to zero within a few meters. Absorption by humidity in the atmosphere is significant except in desert environments, and attenuation by rain
Extremely_high_frequency
The ITU indoor propagation model, also known as ITU model for indoor attenuation, is a radio propagation model that estimates the path loss inside a room
ITU model for indoor attenuation
ITU_model_for_indoor_attenuation
Radiologic sign on radiographs and computed tomography scans
GGO refers to multiple irregular areas of both increased attenuation and decreased attenuation on CT. It is often the result of occlusion of small pulmonary
Ground-glass_opacity
Mathematical models
(linear attenuation) 2) the Strick–Azimi model (power-law attenuation) 3) the Kjartansson model (constant Q) 4) the Azimi models (non-linear attenuation) 5)
Q_models_(seismology)
Conversion of a gene's sequence into a mature gene product or products
Gene expression is the process by which the information contained within a gene is used to produce a functional gene product, such as a protein or a functional
Gene_expression
Type of signal filter
signals, high frequencies in the input signal are attenuated, but the filter has little attenuation below the cutoff frequency determined by its RC time
Low-pass_filter
Pattern seen in radiologic examinations
High attenuation crescent sign or hyperdense crescent sign is a radiologic sign indicating impending aortic rupture. It is seen as a curvilinear area
High-attenuation crescent sign
High-attenuation_crescent_sign
Quantitative scale of radiodensity
the linear attenuation coefficients of water and air. Thus, a change of one Hounsfield unit (HU) represents a change of 0.1% of the attenuation coefficient
Hounsfield_scale
Phonological pattern in Hebrew
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For
Begadkefat
Statistical bias in linear regressions
Regression dilution, also known as regression attenuation, is the biasing of the linear regression slope towards zero (the underestimation of its absolute
Regression_dilution
Filter that rejects signals outside a certain range
measured between frequencies at 30 dB attenuation is twice that measured between frequencies at 3 dB attenuation. A band-pass filter can be characterized
Band-pass_filter
Infectious disease
first genuine success in immunization against tuberculosis in 1906, using attenuated bovine-strain tuberculosis. It was called bacille Calmette–Guérin (BCG)
Tuberculosis
Air monitoring technique
Beta attenuation monitoring (BAM) is an air monitoring technique employing the absorption of beta radiation by solid particles extracted from air flow
Beta_attenuation_monitoring
Type of signal processing filter
attenuation at that frequency in dB. ω s {\displaystyle \omega _{s}} and α s {\displaystyle \alpha _{s}} are the stop band frequency and attenuation at
Butterworth_filter
Proposed mental disorder diagnosis
Attenuated psychosis syndrome (APS) is a proposed mental disorder diagnosis characterized by presence of symptoms of psychosis without passing the threshold
Attenuated_psychosis_syndrome
Signal attenuation in telecommunications
Path loss, or path attenuation, is the reduction in power density (attenuation) of an electromagnetic wave as it propagates through space. Path loss is
Path_loss
Waveguide formed by posts inserted in a dielectric substrate
contribution of the conduction losses on the global attenuation is predominant. The attenuation due to the dielectric behavior of the filling medium
Substrate-integrated waveguide
Substrate-integrated_waveguide
Penetrative sexual activity for reproduction or sexual pleasure
associated with episodic physical and sexual activity; this association was attenuated among persons with high levels of habitual physical activity. John Wincze
Sexual_intercourse
Infrared spectroscopy sampling technique
limited path length into the sample. This avoids the problem of strong attenuation of the IR signal in highly absorbing media such as aqueous solutions
Attenuated_total_reflectance
Species of flowering plant
species of Indian paintbrush, known by the common names valley tassels , attenuate Indian paintbrush, and narrowleaf Owl's-clover. It is native to western
Castilleja_attenuata
Muscle contraction in the middle ear in response to loud sound
reflex, auditory reflex, middle-ear-muscle reflex (MEM reflex, MEMR), attenuation reflex, cochleostapedial reflex or intra-aural reflex) is an involuntary
Acoustic_reflex
mechanics. Perfectly matched layers act as special elements where wave attenuation occurs through a complex coordinate transformation, ensuring all waves
Anchor_losses
Linked hypertext system on the Internet
The technology uses optical microsystems like tunable lasers, filters, attenuators, switches, and wavelength-selective switches to manage and operate these
World_Wide_Web
Frequency response boundary
and a stopband meet: a frequency for which the attenuation is larger than the required stopband attenuation, which for example may be 30 dB or 100 dB. In
Cutoff_frequency
Optical fiber designed to carry only a single mode of light, the transverse mode
cladding, without raising attenuation dramatically. In September 1970, they announced they had made single-mode fibers with attenuation at the 633-nanometer
Single-mode_optical_fiber
Depth that light can penetrate into a material
positive number describes attenuation (reduction of the field) or gain; this is usually obvious from the context. The attenuation constant for an electromagnetic
Penetration_depth
Complete reflection of a wave
internal reflection to carry signals over long distances with little attenuation. They are used in telecommunication cables, and in image-forming fiberscopes
Total_internal_reflection
_{\mathrm {L} }}} For an attenuator, Z and Y are simple resistors and γ becomes the image parameter attenuation (that is, the attenuation when terminated with
T_pad
Average distance travelled by a particle between impacts with other particles
is the linear attenuation coefficient, μ/ρ is the mass attenuation coefficient and ρ is the density of the material. The mass attenuation coefficient can
Mean_free_path
Band of frequencies between specified limits
signals to pass, or the attenuation is above the required stopband attenuation level. Depending on application, the required attenuation within the stopband
Stopband
Transmission method used in amateur radio
the same as the modulation oscillator's, otherwise, distortion and/or attenuation will occur. To see this effect, take the following conditions: Message
Double-sideband suppressed-carrier transmission
Double-sideband_suppressed-carrier_transmission
Frequency dependent circuit
passband, passband attenuation, stopband, and stopband attenuation, where the passbands are the frequency ranges for which audio is attenuated less than a specified
Audio_filter
American geneticist (1925–2018)
the establishment of the one gene-one enzyme hypothesis and discovered attenuation, a riboswitch mechanism in which messenger RNA changes shape in response
Charles_Yanofsky
ATTENUATION
ATTENUATION
ATTENUATION
ATTENUATION
Boy/Male
Hindu
Boy/Male
Indian
Extremely patient
Boy/Male
Muslim
Custody, Guardianship
Boy/Male
Tamil
Good
Female
French
Old French name RIVA means "bank, coast." Compare with another form of Riva.
Surname or Lastname
English (Bristol, Gwent)
English (Bristol, Gwent) : from Middle English tresor ‘treasure’, ‘wealth’, ‘riches’ (Old French trésor, from Latin thesaurus ‘hoard’), hence a metonymic occupational name for a treasurer or person in charge of financial administration, or an affectionate nickname for a loved or valued person.
Boy/Male
Indian, Tamil
Another Name for God Murugan
Boy/Male
Irish
From Reamon.
Boy/Male
Hindu, Indian, Kannada, Marathi, Oriya, Sanskrit, Telugu
Principal; Controller
Girl/Female
American, British, Chinese, Christian, English, German, Scandinavian
A Form of Karley; Womanly and Strength; Variant of Carly; Womanly; Strength; Female Version of Karl
ATTENUATION
ATTENUATION
ATTENUATION
ATTENUATION
ATTENUATION
n.
The act or process of making slender, or the state of being slender; emaciation.
n.
The process of weakening in intensity; diminution of virulence; as, the attenuation of virus.
n.
The act of attenuating; the act of making thin or less dense, or of rarefying, as fluids or gases.
n.
Refinement; subtlety; extreme attenuation.