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Gradual loss of flux intensity through a medium
physics, attenuation – colloquially, damping – is the gradual loss of flux intensity through a medium. For instance, dark glasses attenuate sunlight,
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)
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
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)
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
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
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
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
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
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)
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
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)
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
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
monitored natural attenuation, because environmental agencies check soil and water for the contaminant levels over time. Natural attenuation occurs through
Natural_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
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
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
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
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
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
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
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
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
1995 science fiction film directed by Robert Longo
virtual Internet, which has created a degenerative effect called "nerve attenuation syndrome" or NAS. Megacorporations control much of the world, intensifying
Johnny_Mnemonic_(film)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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)
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
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
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
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
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
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
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
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
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
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
Infectious disease
first genuine success in immunization against tuberculosis in 1906, using attenuated bovine-strain tuberculosis. It was called bacille Calmette–Guérin (BCG)
Tuberculosis
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
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
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)
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
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
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
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
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
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
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
_{\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
determining certain optical fiber transmission characteristics, such as attenuation and bandwidth. The measurement technique consists of: performing the
Cutback_technique
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
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
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
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
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
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
Enclosure of conductive mesh used to block electric fields
within a Faraday cage is heavily attenuated or blocked by the cage; however, a Faraday cage has varied attenuation depending on wave form, frequency
Faraday_cage
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
1975 United States Supreme Court case
Miranda Rights to automatically attenuate an illegal search would dilute the exclusionary rule. Under the attenuation doctrine, evidence obtained through
Brown_v._Illinois
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
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
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
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
2002 French film
corps ("cinema of the body"), which according to Tim Palmer includes: an attenuated use of narrative, assaulting and often illegible cinematography, confrontational
Irréversible
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
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
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
Psychoactive drug, often called ecstasy
diastolic blood pressure (SBP, DBP) by 26 mmHg (p<0.001 each); prazosin attenuated MDMA effects on DBP by 9.3 mmHg (p<001) but did not alter SBP. [...] MDMA
MDMA
Uses of the 2.4 GHz ISM radio spectrum
below). Any remaining gap is used as a guard band to allow sufficient attenuation along the edge channels. This guardband is mainly used to accommodate
2.4_GHz_radio_use
Technology used to provide broadband to the end consumer via fiber
wavelength range) to pass through with low attenuation in one direction, while isolating (providing a high attenuation for) light propagating in the reverse
Passive_optical_network
1987 film by Steven Spielberg
"was attracted to the idea that this was a death of innocence, not an attenuation of childhood, which by my own admission and everybody's impression of
Empire_of_the_Sun_(film)
of the ultrasound wave (MPa), derated by an attenuation factor to account for in-tissue acoustic attenuation fc is the center frequency of the ultrasound
Mechanical_index
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
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
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
Method for reducing unwanted sound
earmuff. This headset had an active attenuation bandwidth of approximately 50–500 Hz, with a maximum attenuation of approximately 20 dB. By the late 1980s
Active_noise_control
Mental disorder
of serotonergic systems in OCD. Orbitofrontal cortex overactivity is attenuated in people who have successfully responded to SSRI medication, a result
Obsessive–compulsive_disorder
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
Private university in Philadelphia, US
learning to take the name "University". Smith continued operating an attenuated version of the College of Philadelphia, and in 1791 the legislature issued
University_of_Pennsylvania
ATTENUATION
ATTENUATION
ATTENUATION
ATTENUATION
Girl/Female
Gujarati, Hindu, Indian
Goddess of Diamond
Boy/Male
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Telugu
Assenting Moon
Girl/Female
Tamil
Kilimoli | கிலீமோலீ
Pleasing voice
Girl/Female
Welsh
Dark and pure.
Boy/Male
Arabic, Indian, Muslim, Pakistani, Tamil, Urdu
Unperceived Pearl
Girl/Female
Australian, Latin
Bright
Boy/Male
Sikh
Favour or fortune of gods Love, Reservoir of Love, Mysterious secrets of Love, Essence of Love (1)
Girl/Female
Tamil
Grand, Splendid, Virtuous, Composed, Another name for Goddess Paarvati
Boy/Male
Assamese, Hindu, Indian, Jain, Kannada, Marathi, Telugu
King of the Gupta Dynasty
Boy/Male
Arabic, Muslim
A Term Used for the Era Instituted by the Akbar
ATTENUATION
ATTENUATION
ATTENUATION
ATTENUATION
ATTENUATION
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.
n.
The act or process of making slender, or the state of being slender; emaciation.