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Longer titles found: Very low frequency (view), Extremely low frequency (view), Ultra low frequency (view), Survivable Low Frequency Communications System (view), Super low frequency (view), Low Frequency Analyzer and Recorder (view), Cambridge Low Frequency Synthesis Telescope (view), Amplitude of low frequency fluctuations (view), The Low Frequency in Stereo (view)

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Low-frequency oscillation (705 words) [view diff] no match in snippet view article find links to article

Low-frequency oscillation (LFO) is an electronic frequency that is usually below 20 Hz and creates a rhythmic pulse or sweep. This is used to modulate

Infrasound, sometimes referred to as low frequency sound or subsonic, describes sound waves with a frequency below the lower limit of human audibility

layout in home theatres. It uses five full-bandwidth channels and one low-frequency effects channel (the "point one"). Dolby Digital, Dolby Pro Logic II

analyze low-frequency underwater sounds. That process was Low Frequency Analysis and Recording and the equipment was termed the Low Frequency Analyzer

two to three octaves of the ten octaves that are audible. This very low-frequency (VLF) range reproduces the natural fundamental tones of the bass drum

frequencies.[needs update] The spacecraft carries two instruments: the Low Frequency Instrument (LFI) and the High Frequency Instrument (HFI). Both instruments

infrared, microwave, radio waves, and low-frequency radio frequency (very low frequency, extremely low frequency) are all examples of non-ionizing radiation

channels across the front with two independent surround channels, and a Low-frequency effects channel. Traditional 7.1 surround speaker configuration introduces

nervosa, atypical bulimia nervosa of low frequency and/or limited duration, binge eating disorder of low frequency and/or limited duration, purging disorder

earthquake, and various types of slow earthquakes, including low frequency earthquakes, very low frequency earthquakes, tremor, and slow slip events. The eastern

released his first mixtape under this new moniker in 2013, titled LFO's (Low Frequency Oscillators). His next mixtape, Along Came Joyner, was released on April

envelopes, which control articulation, or how notes begin and end; and low-frequency oscillators, which modulate parameters such as pitch, volume, or filter

In physics and electrical engineering, a cutoff frequency, corner frequency, or break frequency is a boundary in a system's frequency response at which

The low-frequency effects (LFE) channel is a band-limited audio track that is used for reproducing deep and intense low-frequency sounds in the 3–120

process used low frequency AC current to heat the edges. This low frequency process was used from the 1920s until 1970. In 1970, the low frequency process

their group after the initialism for the common synthesizer function low-frequency oscillation. They gave their first track, the eponymous "LFO", to Nightmares

prospecting technique is using low frequency electromagnetic (EM) waves for 'sounding' into the Earth's crust. These low frequency waves will respond differently

various types of slow earthquake: low frequency earthquakes (LFE) very low frequency earthquakes (VLF) and deep-low-frequency earthquakes slow slip events

electromagnetic spectrum has rigid definitions for "super low frequency", "extremely low frequency", "low frequency" and "medium frequency". Acoustics does not have

of millisecond pulsars to detect and analyse long-wavelength (i.e., low-frequency) gravitational wave background. Such a detection would entail a detailed

Bloop was an ultra-low-frequency, high amplitude underwater sound detected by the U.S. National Oceanic and Atmospheric Administration (NOAA) in 1997

is the callsign of a time signal broadcasting from the BPC Shangqiu Low-Frequency Time-Code Radio Station, cooperatively constructed by the National Time

surround system, they typically use at least one low-frequency subwoofer speaker cabinet to amplify low-frequency effects from movie soundtracks and reproduce

interference, the lack of ultra-sensitive instruments, and the detection of low-frequency waves. Ground-based detectors face problems with seismic vibrations

are found primarily in East Asia, at low frequency in Central Asia and Southeast Asia, and at very low frequency in Western Africa and Western Asia. Haplogroup

perform experiments that actively probed the magnetosphere using very low frequency (VLF) waves. Its location was selected to be near the Earth's south

felt in the body. Air is a very inefficient medium for transferring low frequency vibration from a transducer to the human body. Mechanical connection

The Effelsberg 100-m Radio Telescope is a radio telescope in the Ahr Hills (part of the Eifel) in Bad Münstereifel, Germany. Inaugurated in 1972, for 29

determine vibrational modes of molecules, although rotational and other low-frequency modes of systems may also be observed. Raman spectroscopy is commonly

The Karl Schwarzschild Observatory (German: Karl-Schwarzschild-Observatorium) is a German astronomical observatory in Tautenburg near Jena, Thuringia.

J1745−3009 is a Galactic Center radio transient (GCRT), or bursting low-frequency radio source which lies in the direction of the Galactic Center. A group

component of the cochlear apex. The hair cells near this area best detect low frequency sounds. The helicotrema is a part of the cochlear labyrinth where the

laws can be understood as corollaries of Maxwell's equations in the low-frequency limit. They are accurate for DC circuits, and for AC circuits at frequencies

Onsala Space Observatory (OSO), the Swedish National Facility for Radio Astronomy, provides scientists with equipment to study the Earth and the rest of

While it only broadcasts during daytime hours at 250 watts, KIKK's low frequency gives the station a large coverage area, stretching from Flatonia, Texas

Earth 2: Special Low Frequency Version is the debut studio album by the American rock band Earth, released on February 5, 1993 on Sub Pop. Produced by

galaxy, which yields an estimated total of 195±21. It has an unusually low frequency of globulars for a galaxy of this type. Mice Galaxies Virgo A Brown

order of a few hundred kilometres. This system would replace the older Low-frequency radio range and similar systems used to navigate over national ranges

second modification (official abbreviation UTR-2) is the world's largest low-frequency radio telescope at decametre wavelengths. It was completed in 1972 near

MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) is a low frequency, pulse-limited radar sounder and altimeter developed by the University

a low-frequency phenomenon, as the higher frequencies are overshadowed by white noise from other sources. In oscillators, however, the low-frequency noise

3.7 m). NenuFAR (New Extension in Nançay Upgrading LOFAR) is a very low-frequency phased array optimised for the frequency range from 10 MHz to 85 MHz

60 Hz supplies, notably electricity power transmission in Japan. A low frequency eases the design of electric motors, particularly for hoisting, crushing

whip may be affixed to the center of the disc in order to extend the low frequency response, but this compromises efficiency at lower frequencies. Rather

or thunder. In the context of audio reproduction rumble refers to a low frequency sound from the bearings inside a turntable. This is most noticeable

{R_{\text{L}}}{R_{\text{L}}+R_{\text{out}}}}\end{matrix}}} . In low-frequency circuits, a high voltage gain is typically desired, hence the importance

currents Induction stove boiling water by inductive coupling to pan Low-frequency induction can be a dangerous form of inductive coupling when it happens

produced from the other side. In some respects, the ideal mounting for a low-frequency loudspeaker driver would be a rigid flat panel of infinite size with

Leibniz Institute for Astrophysics Potsdam (AIP) is a German research institute. It is the successor of the Berlin Observatory founded in 1700 and of the

speaker is a technical term for a loudspeaker driver designed to produce low frequency sounds, typically from 20 Hz up to a few hundred Hz. The name is from

movement, a large landslide and a large man-made explosion that produces low-frequency acoustic energy. Seismic waves are studied by seismologists, who record

Equalization may also be used to eliminate or reduce unwanted sounds (e.g., low-frequency hum coming from a guitar amplifier), make certain instruments or voices

Robinson–Dadson, which appear to differ by as much as 10–15 dB, especially in the low-frequency region, for reasons not explained. According to the ISO report, the

geoscience degrees by the Geological Society. Styles has also studied low frequency noise generated by windfarms. "Peter STYLES persona". Companies House

distance limits vary widely over many power-line communication standards. Low-frequency (about 100–200 kHz) carriers impressed on high-voltage transmission

at each substation power is drawn from two out of three phases). The low-frequency AC system may be powered by separate generation and distribution network

enclosure that has a bass reflex port or vent. The bass vent boosts low-frequency output, but with the tradeoff of introducing phase delay and accuracy

graduate and undergraduate. The initial FCRAO telescope was a customized low-frequency antenna to search for pulsars in the galaxy. The development of instrumentation

projector and receive array. So the ship-deployable long range sonar is a low frequency bistatic towed array sonar with spatially separated projector and receive

microphone, and the technology is based on the tenet that the non-verbal, low-frequency content of the voice conveys information about the physiological and

color and semiconducting properties of this and related materials. The low-frequency dielectric constant (ε0) has been measured to be 133 along the c axis

this it is necessary to mathematically write the beat or signal as a low frequency envelope multiplying a carrier. Thus the phase velocity of the carrier

Levant, and later Japan. The haplogroup is also found with moderate to low frequency among many present-day populations of Southeast Asia, South Asia, and

and sinus injuries from high intensity, low-frequency sound. This is due to the ease with which low-frequency sound passes from water into a body, but

AN/SQS-26 was a United States Navy surface ship, bow mounted, low frequency, active/passive sonar developed by the Naval Underwater Sound Laboratory and

chest wall and then asking a patient to repeat a phrase containing low-frequency vowels such as "blue balloons" or "toys for tots" (the original diphthong

antithetical LW antigens, LWa and LWb are present as very high and very low frequency, respectively. The LW locus is located on the short arm of chromosome

Array, Murchison Widefield Array, and Low-Frequency Array. The collage above shows antennas from several low-frequency radio telescopes used to observe the

of the waveform being affected is typically modulated by an internal low-frequency oscillator so that they vary over time, creating a sweeping effect.

include white noise generator, portamento, octave transposition, two low frequency oscillators and a random note generator. Even with a single oscillator

modifications to the larynx and hyoid bone and enlarged internal air spaces for low-frequency vocal resonation. While roaring, animals may stretch out their necks

communication relay equipment, Queqiao carries the Netherlands-China Low Frequency Explorer (NCLE), a radio-astronomy experiment to detect faint radio

crossovers to remove high-frequency content from signals being sent to a low-frequency subwoofer system. High-pass A high-pass filter does the opposite, passing

Voyager program. The device is 16 channel step frequency receiver and a low-frequency waveform receiver that can measure electron density. The PWS uses the

interfering with other stations. Even with this restriction, CJOB's low frequency, transmitter power, and Manitoba's mostly flat land (with near-perfect

tremor is a dyskinetic disorder characterized by a broad, coarse, and low-frequency (below 5 Hz) tremor evident during deliberate and visually-guided movement

studied the behaviour of the ionosphere and the effect of generation of low-frequency emission on modulation of ionosphere current. In the beginning, the

used depending on the shape of the audiogram, such as high frequency, low frequency, U-shaped, notched, peaked, or flat. Sensory hearing loss often occurs

Sensurround worked by adding extended-range bass for sound effects. The low-frequency sounds were more felt than heard, providing a vivid complement to onscreen

through a chorus effect using a number of delay lines triggered by low frequency oscillators. An American company called Multivox manufactured a clone

high-pass filtering as they are not subject to modulation by low-frequency stage wash—low frequency sounds coming from the subwoofers or the public address

dependence of the capacitance C(V). By feeding the HBV a signal of low frequency f1, higher harmonics f3=3f1 (tripler), f5=5f1 (quintupler), ... will

opposite ends of the frequency/resolution trade-off. The audio DAC is a low-frequency, high-resolution type while the video DAC is a high-frequency low- to

scheduled to make a right turn to intercept the 168° course line of the DEN low frequency range, and then to proceed to the WONT intersection, its next clearance

at its minimum. The SOFAR channel acts as a waveguide for sound, and low frequency sound waves within the channel may travel thousands of miles before

macromolecular chain condensate or a viscous liquid or gas, then the low frequency atomic-chain-deformation waves within the transmitting medium (not the

fails to accurately fit the experimental data for long-wavelength (low-frequency) emission. Wien derived his law from thermodynamic arguments, several

Look up LFO in Wiktionary, the free dictionary. LFO may refer to: Low-frequency oscillation, typically below 20 Hz LFO (British band) "LFO", a song on

to as the Kirkby branch line. The Kirkby branch to Wigan remained a low frequency (one train per hour) diesel operated service by Northern Trains from

Haplogroup C1a1 (M8, M105, M131) Found with low frequency in Japan Haplogroup C1a2 (V20) Found with low frequency in Europe, Armenians, Algeria, and Nepal

less attenuation for low-frequency (<500 Hz) sounds than earplugs. Thus, in situations where noise is dominated by low-frequency energy, earplugs are

0. It is located in the constellation Lynx and it was discovered in Low-Frequency Array (LOFAR) data by a team of astronomers led by Martijn Oei. As of

observations of the ionosphere and space weather. It also operates the JJY, a low frequency time signal. In late August 2015, it was announced that a terahertz

low frequency sounder devices. As of December 15, 2023, the xenon L-Series devices were discontinued. On March 14, 2024, some L-Series low frequency sounders

to bubble through slowly with a popping or rattling sound of a very low frequency. During this phonation, the arytenoid cartilages in the larynx are drawn

40 GHz, at angular scales of 1°. These measurements will complement at low frequency and correct from galactic contamination those obtained by the Planck

from the side of the reference electrode. For ISFET-based sensors, low-frequency noise is most detrimental to the overall SNR as it can interfere with

amplification systems, due to the particular challenges associated with low-frequency sound reproduction. This distinction affects the design of the loudspeakers

strengths. The following table gives some typical values. The relative low frequency permittivity of ice is ~96 at −10.8 °C, falling to 3.15 at high frequency

using low-frequency subaudible tones to share a single radio channel among multiple users. Each user group would use a different low frequency tone. Motorola's

In electronics, a common-emitter amplifier is one of three basic single-stage bipolar-junction-transistor (BJT) amplifier topologies, typically used as

Figure 2: Small-signal low-frequency hybrid-pi model for amplifier driven by a Norton signal source

active radiating transceivers. RuBee is different in that it uses a low frequency (131 kHz) carrier. 1902.1 is the "physical layer" workgroup with 17

The Chilbolton Observatory is a facility for atmospheric and radio research located on the edge of the village of Chilbolton near Stockbridge in Hampshire

with each other. Typically, the signal on port L will occupy a single low frequency band and the signal on port H will occupy a higher frequency band. In

a title in the British peerage Rugby Radio Station, a former very low-frequency radio transmission facility in Rugby, Warwickshire, England Rugby services

intentionally on signals with no low-frequency content, called bandpass signals. Undersampling, which creates low-frequency aliases, can produce the same

process can reduce complaints from low frequency noise carrying through walls and it can be employed to reduce low frequency content in loud music that might

their orthogonality. Another key property is that the modulations are low-frequency/low-bandwidth waveforms compared to the carrier frequency, which is

charge causes the grid to exhibit a reactance that is much less than its low-frequency "open circuit" characteristic. Acorn- as well as Lighthouse tubes and

used for shielding sensitive electronic equipment against static or low-frequency magnetic fields. Mu-metal has several compositions. One such composition

introduced by L.J. Giacoletto in 1969. The model can be quite accurate for low-frequency circuits and can easily be adapted for higher frequency circuits with

occurs at high frequencies, where the wavelength is very short, or on low-frequency, but very long, transmission lines such as overhead power lines. The

United States Air Force's Orbiting Vehicle program. OV1-9 recorded low frequency radio emissions and particle radiation in Earth's exosphere; the satellite

chords. Often samplers offer filters, effects units, modulation via low frequency oscillation and other synthesizer-like processes that allow the original

the compact cassette in the late 1960s it became possible to add more low-frequency content to recordings. By the mid-1970s, 12" vinyl singles, which allowed

without interacting through sensory signals. The Mother's heartbeats (a low-frequency oscillator) modulate relevant local neuronal networks in specific subsystems

is the common-gate amplifier. This arrangement is not very common in low-frequency discrete circuits, where it is usually employed for amplifiers that

SURTASS passive and active low frequency sonar arrays to detect and track undersea threats.[citation needed] The SURTASS Low Frequency Active Sonar system,

ground. Simple shielding of this type is not greatly effective against low-frequency magnetic fields, however - such as magnetic "hum" from a nearby power

sent to two or more loudspeaker drivers (e.g., a woofer and a very low frequency subwoofer, or a woofer and a tweeter, or a woofer-midrange-tweeter combination)

loading on a crystal resonator and pull its resonant frequency. For low-frequency VCOs, other methods of varying the frequency (such as altering the charging

normally nonconductive media such as air. Telluric currents — Extremely low frequency electric current that occurs naturally over large underground areas

systems were being deployed, an active adjunct known as the SURTASS Low Frequency Active (LFA) systems was designed for long range detection. The active

geomorphology, an outburst flood—a type of megaflood—is a high-magnitude, low-frequency catastrophic flood involving the sudden release of a large quantity

as transistors. Inductors block high-frequency signals and conduct low-frequency signals, while capacitors do the reverse. A filter in which the signal

the whistler instability in 1963, an instability which causes audible low-frequency radio waves to be emitted in the magnetosphere in the form of whistler

[page needed] The system was tested with an up to 800 metre long Very Low Frequency antenna for communication with submerged submarines. The three power

energy (e.g., light or radar). The oceans are fairly transparent to low-frequency acoustics, however. The oceans conduct sound very efficiently, particularly

pulsar known within the Milky Way. PSR J0952–0607 was discovered by the Low-Frequency Array (LOFAR) radio telescope during a search for pulsars in 2016. It

Chilean Type 23 frigates acquired from the Royal Navy. The S2087 is a Low Frequency Active Sonar (LFAS) and consists of both active and passive sonar arrays

have greater difficulties with the naming of not only difficult and low frequency objects but also easy and high frequency objects. Naming difficulties

microwave absorption. Shaping offers far fewer stealth advantages against low-frequency radar. If the radar wavelength is roughly twice the size of the target

oscillation or AO), also known as the Southern Annular Mode (SAM), is a low-frequency mode of atmospheric variability of the southern hemisphere that is defined

master and/or slave oscillator within OSC1 can be modulated by the first low-frequency oscillator (LFO1), either jointly or individually. The AN1x has twin

down, with an alternative cover, and relabeled as Absolutego+ (Special Low Frequency Version) in homage to Earth 2. This reissue included a bonus drone track

bandpass signal, the samples are indistinguishable from the samples of a low-frequency alias of the high-frequency signal. Such sampling is also known as bandpass

transduction mechanism that generates narrow, nearly side lobe-free beams of low frequency sound, through the mixing and interaction of high frequency sound waves

61-note processor-controlled piano keyboard, sophisticated programmable low-frequency oscillation (LFO) and envelope modulation, two-pole and four-pole filters

absorbers which are designed to damp low-frequency sound energy with the goal of attaining a flatter low-frequency (LF) room response by reducing LF resonances

in clearer highs. Exciters are also used to synthesize harmonics of low frequency signals to simulate deep bass in smaller speakers. Originally made in

{Hz} } ) on the beachface; and (2) swash characterised by standing, low-frequency ( f < 0.05 H z {\displaystyle f<0.05\,\mathrm {Hz} } ) motions. Which

frequency—regardless of the light's intensity or duration of exposure. Because a low-frequency beam at a high intensity does not build up the energy required to produce

Females prefer males with low-frequency signals because they indicate a higher fitness of the male. Since these low-frequency signals are more conspicuous

introduced. All halftoning uses a high-frequency/low-frequency dichotomy. In photographic halftoning, the low-frequency attribute is a local area of the output

Moog transistor-ladder lowpass voltage-controlled filter dedicated low-frequency oscillator with triangle, square, and random waveforms extensive modulation

audible than the higher notes: he then designed a device to produce a low-frequency sound, as well as a code system for use with it. Foulis repeatedly presented

line, etc.) are often used to extend the effective low-frequency response and increase the low-frequency output of the driver. To make the transition between

generators. It also sports a ring modulator and a voltage controlled low-frequency oscillator (LFO). It is fairly unusual for a hard-wired synthesizer

LTD is restricted to the individual synapse that is activated by a low frequency stimulus. In other words, this form of LTD is activity-dependent, because

and new laboratory practices, the connectors are now uncommon. Modern low-frequency microwave equipment often uses the less expensive 3.5 mm (26.5 GHz)

Low-frequency radar is radar which uses frequencies lower than 1 GHz such as L-band, UHF, VHF, and HF, as opposed to the usual radar bands, which range

reducing resolution and quality. To extend the frequency band available, low-frequency data is derived from log data, pre-stack depth or time migrated velocities

around civil twilight during golden hour intensely in its low-energy and low-frequency red component. During this part of civil twilight after sunset and before

velocity of micrometeorites, and study radiation, magnetic fields, and low frequency electromagnetic waves in space. A mid-course propulsion system and injection

of other sensors and equipment. Six of the 16 ordered will feature low frequency dunking sonar from Bharat Electronics One of the helicopter from INAS

a single voltage controlled audio oscillator, a voltage controlled low frequency oscillator, a voltage controlled filter switchable between high and

Passive seismic is the detection of natural low frequency earth movements, usually with the purpose of discerning geological structure and locate underground

'broadband' seismic technologies, with particular emphasis upon ultra-low frequency benefits and challenges, providing professional courses on behalf of

amid downtown office and apartment buildings. CBK 540 operates on a low frequency and with high power in a region with excellent ground conductivity.

cases, the mast is a passive structure to support the antennas. But in low frequency stations (such as AM radio), the mast itself may be the active antenna

problem of directivity at higher frequencies, and they provide excellent low frequency loading. Their directional control begins to beam both vertically and

until the signing of the Argentine Constitution of 1853, followed by low-frequency skirmishes that ended with the Federalization of Buenos Aires in 1880

OPZII, enabling 0 Hz carriers or low rates for native chorusing Dual low frequency oscillators The chip was used in the PortaTone PSR-80 and PSR-6300,

frequency response of the circuit under consideration. This may be at low-frequency, mid-band or some other point and specific applications are discussed

0552 - Integrated undersea surveillance system (IUSS) low frequency active (LFA)/compact low frequency active (CLFA) operator SN-SCPO 0553 - Integrated undersea

combination of insufficient training and shortcomings in the aircraft's low frequency radio range equipment. The accident aircraft was a Douglas C-47A-5-DK

velocity of micrometeorites, and study radiation, magnetic fields, and low frequency electromagnetic waves in space. A mid-course propulsion system and injection

to the east margin of the Mona Passage. The vertical profile of the low-frequency (periods longer than 2 days) mean meridional water transport is characterized

intergovernmental international radio telescope project being built in Australia (low-frequency) and South Africa (mid-frequency). The combining infrastructure, the

Miller Road, near Interstate 29 in St. Joseph. Due to the station's low frequency, transmitter power, and northwest Missouri's flat land, it provides

Instead, another object is used as a diaphragm. A shaker transmits low-frequency vibrations into various surfaces so that they can be felt by people

velocity of micrometeorites, and study radiation, magnetic fields, and low frequency electromagnetic waves in space. A midcourse propulsion system and injection

to be, as they are defined in terms of high frequency of plants and low frequency of animal food consumption. Origin of the term "plant-based diet" is

the First Battle of the Atlantic as a minelayer. On 27 October 1918 low frequency communications from U-78 in the Skagerrak were detected by the British

implying an advantage for sensing low frequency sounds, infrasound, or bone-conducting seismic waves. Low frequency sound is useful for long range communication

long-wave (BPL) standard time and frequency radio stations. And in 2007, low-frequency (BPC) time signal station began trial broadcasting from Shangqiu. "Brief

effect (atomic physics) Proximity effect (audio), an increase in bass or low frequency response when a sound source is close to a microphone Proximity Effect

harmonics are used to approximate the light transport function, only low-frequency effects can be handled with a reasonable number of parameters. Ren Ng

ocean-surveillance ships carrying a SURTASS passive towed array and a Low Frequency Active transducer array. Only the lead ship, USNS Impeccable (T-AGOS-23)

source. Modern line arrays use separate drivers for high-, mid- and low-frequency passbands. For the line source to work, the drivers in each passband

Metrewave Radio Telescope, located in Pune, India. The largest array, the Low-Frequency Array (LOFAR), finished in 2012, is located in western Europe and consists

Timing Array Project (InPTA). The goal of the IPTA is to detect ultra-low-frequency gravitational waves, such as from mergers of supermassive black holes

absence of antibiotics or other stressors, filamentation occurs at a low frequency in bacterial populations (4–8% short filaments and 0–5% long filaments

harmonics are used to approximate the light transport function, only low-frequency effects can be handled with a reasonable number of parameters. Ren Ng

Metrewave Radio Telescope, located in Pune, India. The largest array, the Low-Frequency Array (LOFAR), finished in 2012, is located in western Europe and consists

S2CID 37302662. Schick, K. L.; Verveen, A. A. (October 1974). "1/f noise with a low frequency white noise limit". Nature. 251 (5476): 599–601. Bibcode:1974Natur.251

left shift to a lower resonant frequency increases the volume of some low frequency sounds due to the longer waves propagated by the increased excursion

(}1-o(1){\bigr )}\cdot \ln {n}} unless P = {\displaystyle =} NP. In low-frequency systems, Dinur et al. (2003) proved it is NP-hard to approximate set

with surface dyslexia, a relatively selective impairment in reading low-frequency words with exceptional or atypical spelling-to-sound correspondences

venues route the low-frequency parts of the music (electric bass, bass drum, etc.) to a powered subwoofer. Routing the low-frequency energy to a separate

refitted with the modern SLASM anti-submarine system, and active Very Low Frequency (VLF) sonar. The ships are an enlarged version of the frigate Aconit

obtain information on the structure of the asteroid's surface a bistatic low frequency radar (on the orbiter and on the lander) to allow a view inside the

technique to measure the force of muscle contraction by recording the low frequency sounds created during muscular activity. Although, until recently, less

Infrasonic passive seismic spectroscopy (IPSS) is a passive seismic low frequency technique used for mapping potential oil and gas hydrocarbon accumulations

means latitudinal, and the similarly quasi-two-dimensional nature of low-frequency flows in a strongly magnetized plasma. Zonal flows in the toroidal plasma

international consortium of organisations to construct and operate a low-frequency radio array. 'Widefield' refers to its very large field of view (on

The article also comments on the large differences apparent in the low-frequency region, which remain unexplained. Possible explanations are: The equipment

frequency is high. Deep-sea trawlers and commercial fishermen normally use low frequency (50–200 kHz); modern fishfinders have multiple frequencies to view split-screen

resulted in the GMRT maintaining its position as one of the leading low frequency radio observatories in the world. For this achievement, Gupta and his

Infrasound is sound at frequencies lower than the low frequency end of human hearing threshold at 20 Hz. It is known, however, that humans can perceive

magmatism the Kola and Karelia region had experienced a long history of low-frequency alkaline and carbonatite volcanism. The Permian rocks of the Kola Alkaline

cover non-chemical (potential) hazards (see, e.g., EHC 35: Extremely low frequency (ELF) fields) and methodology (see, e.g., EHC 144: Aged Population,

Equatorial Rossby waves, often called planetary waves, are very long, low frequency water waves found near the equator and are derived using the equatorial

in daily speech, such as the word "the". A word is considered to be low frequency if the word is not commonly used, such as the word "strait". Some languages

large-deformation covalent bond stretching. Alpha-helices in proteins may have low-frequency accordion-like motion as observed by the Raman spectroscopy and analyzed

as submarines and destroyers. SURTASS is now being complemented by Low-Frequency Active (LFA) sonar; see the sonar section. Passive sonobuoys, such as

channels (voices) Four operators per channel Two interval timers A low frequency oscillator (LFO) Three SSG square wave tone/noise channels: compatible

(voices) Four operators per channel Two interval timers A sine-wave low frequency oscillator (LFO) For channel three, operator frequencies can be set

basal rate of action potential propagation and synaptic release. Thus, low frequency stimulation of a neuron in the short term is similar to the activity

concentrations), or LTD if it is in a lower-activity state (e.g., firing in low frequency, low internal calcium concentrations). This theory is often used to

Havilland Comet airliner. The title refers to a technical term used in the low-frequency radio range. An identification of a range's cone of silence is shown

room's dimensions or a divisor thereof. These resonances affect the low-frequency low-mid-frequency response of a sound system in the room and are one

photoreceptor cells: a finer matrix can resolve finer gratings. The low frequency drop-off is due to lateral inhibition within the retinal ganglion cells

In electromagnetism, a helicon is a low-frequency electromagnetic wave that can exist in bounded plasmas in the presence of a magnetic field. The first

controllable only via a second 3-stage ADR envelope controller. The low frequency oscillator (LFO) of the Prodigy featured a triangle and square waveform

he predicted the existence of low-frequency phonons in proteins, followed by developing the theory of low-frequency collective motion in proteins and

2010) was a Russian geophysicist who is known for her work on Ultra Low Frequency (ULF) waves. Troitskaya was born in Petrograd (today known as St. Petersburg)

beliefs included that he was being "controlled or influenced by extremely low frequency electromagnetic waves." On November 20, 2014, Myron May shot and injured

Magnetobiology is the study of biological effects of mainly weak static and low-frequency magnetic fields, which do not cause heating of tissues. Magnetobiological

humans vestibular evoked myogenic potentials occur in response to loud, low-frequency acoustic stimulation in patients with the sensorineural hearing loss

device. For transistors: A PNP high frequency B PNP low frequency C NPN high frequency D NPN low frequency E P-gate thyristor F N-base unijunction transistor

frequency and are used by the mouse to make longer distance calls, as low-frequency sounds can travel farther than high-frequency sounds. Hearing is birds'

labourer. Legend: HF- High Frequency Route, NS - Night Service Route, LF - Low Frequency Route "Puduvoyal Population - Thiruvallur, Tamil Nadu". 2011 Census

Low-frequency electromagnetic compatibility (LF EMC) is a specific field in the domain of electromagnetic compatibility (EMC) and power quality (PQ),

associated with the ability of a biological cell membrane to filter out low frequency currents and allow high frequency currents to pass through. It was originally

basswood, the wood of the tilia americana tree Bass (sound), describing low-frequency sound or one of several instruments in the bass range: Bass instruments

confines it closely to the inductor, thereby increasing the inductance. Low frequency inductors are constructed like transformers, with cores of electrical

a low-frequency hum of unknown origin, inaudible to most people Mains hum – an electric or electromagnetic phenomenon that causes a low frequency (50

Observatory also houses most of the staff of ASTRON and a test site for the Low Frequency Array radio telescope, LOFAR. Two galaxies are named after this telescope:

tissue: LF-CDI, low-frequency CDI, the original implementation developed at the University of Toronto. In this technique, low frequency (LF) electric currents

which feeds (low frequency) current into the coil to cancel the sensed field; the magnitude of the current provides the low-frequency part of the current

Developed in 2007 by Federal Signal Corporation, and sounding at a low-frequency level, it is designed to be heard by motorists who may otherwise be

behavior contingent upon the occurrence of low-frequency behavior will function as a reinforcer for the low-frequency behavior. In other words, an individual

and both methods are used for the same reason: to extend the system's low frequency response. A passive radiator is the use of one or more additional cones

base of the waveform has been moved up, or inaudible low-frequency distortion will occur. Low-frequency distortion may not be audible in the initial recording

conformation, β-sheets resist stretching. β-sheets in proteins may carry out low-frequency accordion-like motion as observed by the Raman spectroscopy and analyzed

especially in contrast to the low woofs made by many dogs, after which low-frequency drivers are named (woofers). Nearly all tweeters are electrodynamic

CAT-scans showed that Timurlengia had long inner ear canals, for hearing low-frequency sounds. The species was based on the holotype, specimen ZIN PH 1146/16

example of VLF (Very Low Frequency) equipment. These transmissions cannot be received by ordinary radios because of their low frequency. Modern enthusiasts

Particle Interactions Theory. The later involved broadcasting very-low-frequency/low-frequency (0.5–200-kHz) signals from a transmitter located at Siple Station

telescoping boom on a stable moving vehicle, the boomSAR transmits low frequency (50 to 1100 MHz) short-pulse UWB signals over the side of the vehicle

(ballad version) – 3:20 "Wonderful Life" (Low Frequency Occupation radio edit) – 3:50 "Wonderful Life" (Low Frequency Occupation club mix) – 7:18 "Wonderful

typically cut in the shape of a simple rectangle or circular disk. Low-frequency crystals, such as those used in digital watches, are typically cut in

lunar surface temperature over the duration of the mission. Carry out low-frequency radio astronomical observation and research using a radio telescope

transducers, for example, a particular microphone might be more sensitive to low frequency sounds than to high frequency sounds, so an equalizer would be used

Monstein, C.; McAteer, R. T. J. (1 October 2012). "Observations of Low Frequency Solar Radio Bursts from the Rosse Solar-Terrestrial Observatory". Solar

FM synthesis (via phase modulation) or simple additive synthesis A low frequency oscillator running 1 of 4 waveforms, mappable to pitch on a per-channel

transmitter tower is on the St. Paul - Falcon Heights campus. Due to its low frequency of 770 kHz, combined with the region's excellent soil conductivity,

different communication channels. New communication channels extended to low-frequency bands were added to the wavelet-based Nessum (New name of HD-PLC High

which the energy of high-frequency fundamental modes is drained into low-frequency modes, particularly into zero-frequency motions such as overall translation

(GURT, Ukrainian: Гігантський Український Радіотелескоп, ГУРТ) is a low frequency (8-80 MНz) radio telescope which is being developed, built and operated

000 μm) has low energy and may be used for rotational spectroscopy and low frequency vibrations. The region from 2–130 cm−1, bordering the microwave region

with a 170 Hz frequency shift. The high frequency is a mark, and the low frequency is a space. SITOR is used commonly on shortwave bands, where it is used

waves greatly extend the ground wave propagation of long wavelength (low frequency) radio. They also cause both of a person's ears to hear a sound, rather

undergo a brief (hour-order or less) low-frequency vertical oscillation. Such oscillation results in a low-frequency atmospheric gravity wave capable of

language centers are predominantly in the left hemisphere. In studies, low-frequency repetitive transcranial magnetic stimulation (rTMS) applications have

circuit. US patent 3330966. Klipsch, P.W., 7/11/1967. Small dimension low frequency folded exponential horn loudspeaker with unitary sound path and loudspeaker

In an electrical system, a ground loop or earth loop occurs when two points of a circuit are intended to have the same ground reference potential but instead

all channels to one or more subwoofers, not just the content of the low-frequency effects (LFE) channel. However, when there is no subwoofer, the bass

correct radiation at all frequencies, has the Rayleigh–Jeans law as its low-frequency limit. In 1900, the British physicist Lord Rayleigh derived the λ−4

ablation. Two advantages of radio frequency current (over previously used low frequency AC or pulses of DC) are that it does not directly stimulate nerves or

with making keyboards sound louder on stage; namely, to provide solid low-frequency sound reproduction for the deep basslines that keyboards can play and

channels: 1.0 to 15.1 (i.e. from mono to 15 full range channels and a low frequency effects channel) Number of audio programs per bitstream: 8 Sample rate:

vibrator manufacturers. Having a low-frequency vibrator gives a "rumbling" sensation, rather than a buzzy sensation. Low-frequency vibrations also carry through

ablation. Two advantages of radio frequency current (over previously used low frequency AC or pulses of DC) are that it does not directly stimulate nerves or

physics, magnetosonic waves, also known as magnetoacoustic waves, are low-frequency compressive waves driven by mutual interaction between an electrically

and versatility of the GMRT has led to a renaissance in the field of low frequency radio astronomy. From this, TGSS survey, data, in August 2018, the most

induced at these synapses by a low frequency stimulation protocol (2 Hz for 60 s) and that pairing this low frequency stimulation protocol with postsynaptic

physical space needed for each groove, by reducing the size of the larger low-frequency undulations. This is accomplished in the amplifier with a phono input

courtship behavior is rare in the Rhagoletis genus, male flies demonstrate low-frequency wing vibration, accompanied by airborne infrasound; they also turn their

Its sense of hearing is extremely acute, allowing it to localize the low-frequency noises generated by other feeding animals, and, by extension, sources

The proximity effect in audio is an increase in bass or low frequency response when a sound source is close to a directional or cardioid microphone. Proximity

Op amp integrator § Practical circuit The gain of an integrator at low frequency can be limited to avoid the saturation problem, by shunting the feedback

sonobuoy AN/SSQ-23 Julie omnidirectional low frequency passive sonobuoy AN/SSQ-28 Jezebel omnidirectional Low Frequency Analyzer and Recorder (LOFAR) passive

is a orbiting low frequency radar sounder and altimeter over Mars RIME, Radar for Icy Moons Exploration (RIME) is a orbiting low frequency radar sounder

conventions. In a study by Medes et al., prolonged exposure to infrasound and low-frequency noise (<500 Hz) in long durations has an effect on vocal range (i.e

{\displaystyle \Delta t} is large, Bad time resolution Good frequency resolution Low frequency, large scaling factor When Δ t {\displaystyle \Delta t} is small Good

(matching the rolloff of the luminance signal at +3.0 MHz). On the low-frequency side, a full 1.0 MHz single-sideband of the 'I' signal was radiated

detectors of ultrasound (very high-frequency sounds) or infrasound (very low-frequency sounds), or a laser vibrometer (substrate-borne vibrational signals)

LILFU stands for low intensity, low frequency ultrasound. It is a new technique devised by the team of William J. Tyler from Arizona State University

cochlea as the tuning on the basilar membrane changes from high to low frequency. The bandwidth of the auditory filter is called the critical bandwidth

moment and the frequency of neural signals; but the low percentage and low frequency in healthy tone are the key factors defining it as healthy (and not

Chouest is to directly support the Navy by using both passive and active low frequency sonar arrays to detect and track undersea threats. In January 1991,

a "low-frequency enhancement" channel to give more body to low-frequency bass. This layout came to be known as "5.1" (the "point one" is the low-frequency

Soundgarden, and collaborated with Chris Cornell on a lesser-known band, the low frequency power trio Bass Truck. Lead guitarist Tommy Niemeyer from crossover

weather radio transmitters, LF PNT/eLORAN transmitters, SONAR high-power low-frequency amplifiers and SONAR systems, medium frequency (MF) telegraph and NAVTEX

Irregular groups of large blocks of rock Outburst flood – High-magnitude, low-frequency catastrophic flood involving the sudden release of water Outflow channels –

but could not be used for power transmission since the relatively low-frequency radio waves spread out in all directions and little energy reached the

some cases found superior to, electroporation. Extended exposure to low-frequency (<MHz) ultrasound has been demonstrated to result in complete cellular

retreats. They are not greatly affected by frost weathering, given the low frequency of freeze-thaw cycles in areas of ice caps and ice sheets.[page needed]

velocity is of much importance. Apart from the vibration, the radiation of low-frequency noises induced by vehicle moving at the critical velocity transfer for

noise pulses consist of a relatively short pulse followed by decaying low frequency oscillations. The initial peak is often due to an impulse interference

Emanuela; Murgia; Feretti; Govoni; Giovannini; Lane; et al. (2010). "Low-frequency study of two giant radio galaxies: 3C35 and 3C223". Astronomy & Astrophysics

to set overscan (castellations should be visible) and check for the low-frequency response of the entire transmission chain. The background features a

for Private Line, a trademark of Motorola. It does this by adding a low frequency audio tone to the voice. Where more than one group of users is on the

distributed in Europe, North Africa, West Asia, and South Asia with very low frequency. Haplogroup C1a2 (V20) has been discovered in the remains of Palaeolithic

In electronics, motorboating is a type of low frequency parasitic oscillation (unwanted cyclic variation of the output voltage) that sometimes occurs

one type of driver (e.g., a tweeter and a woofer) or, for monitoring low-frequency sounds, such as bass drum, additional subwoofer cabinets may be used

is a convenient rate to use with simple binary counter circuits. The low frequency saves power, while remaining above human hearing range. The quartz tuning

high-quality sound reproduction, were once valued for this reason, but a good low-frequency response could be obtained only when the ribbon was suspended very loosely

Low-frequency electric resistance weld, LF-ERW is Electric resistance welded (ERW) pipe manufactured by cold-forming a sheet of steel into a cylindrical

phase. Thus for a pulse with zero offset the second harmonic of the low-frequency tail is in phase with the fundamental of the high-frequency tail, and

needed for orientation problems. Intermittent satellite navigation and low-frequency radio navigation problems may occur, HF radio may be intermittent, and

without disturbing other components. The bias tee is a diplexer. The low-frequency port is used to set the bias; the high-frequency port passes the radio-frequency

the location of the Anthorn radio station, broadcasting specialised low frequency signals for timekeeping and navigation. Originally no more than a cluster

Transfer constants are low-frequency gains (or in general ratios of the output to input variables) evaluated under different combinations of shorting

required utilization voltage. If an incandescent lamp is operated on a low-frequency current, the filament cools on each half-cycle of the alternating current

the location of the Anthorn radio station, broadcasting specialised low frequency signals for timekeeping and navigation. Originally no more than a cluster

P125, P126, P127, P129, P130, S2, S22, per ISOGG 2008) IJ* – found at low frequency in parts of Iran. I (M170, P19, M258, P38, P212, U179, Haplogroup I

between conducting planes are about 0.3%. Low-frequency time domain measurements (10−6 to 10+3 Hz) Low-frequency frequency domain measurements (10−5 to 10+6 Hz)

Australia. The sound waves are often modulated using automation or low-frequency oscillation controlling the cutoff of an audio filter (typically a low-

zero. This occurs because "real world" images tend to contain mostly low frequency information (highly correlated). However where high frequency information

Low-frequency electric resistance weld, LF-ERW is Electric resistance welded (ERW) pipe manufactured by cold-forming a sheet of steel into a cylindrical

Conductor gallop is the high-amplitude, low-frequency oscillation of overhead power lines due to wind. The movement of the wires occurs most commonly

throughout the four felid species, however they differ in intensity of low-frequency components. Total numbers of pulses produced per vocalization shows

A study of O. uninotatus found it to produce sounds at an unusually low frequency of about 3.5 kHz. The tympanal membrane cuts out high frequencies unlike

electrical engineer who predicted the Schumann resonances, a series of low-frequency resonances caused by lightning discharges in the atmosphere. Winfried

and a harem of females. Individuals communicate by sound, producing low-frequency whistles, and also produce high-frequency broadband clicks of 80–220 kHz

Haplogroup G (M201) (present among many ethnic groups in Eurasia, usually at low frequency; most common in the Caucasus, the Iranian plateau, and Anatolia; in

component of this radiation lies in the infrared band, making this a low-frequency peaked BL Lac (LBL). It is one of the few LBLs known to emit gamma rays

radiate electromagnetic waves in the VLF (Very Low Frequency; 3 kHz to 30 kHz) and LF (Low Frequency; 30 kHz to 300 kHz) bands. The tower, known locally

frequency of the ultrasound applied, which led to further studies of low-frequency sonophoresis (LFS) for use in transdermal drug delivery due to studies

Gomero's vowels are described roughly as sustained lines of high and low frequency that are distinct from each other. The high-frequency /i/ represents

eventually merge in the next 250 million years, producing powerful, low-frequency gravitational waves in the process. List of nearest black holes "NASA/IPAC

bandwidth extension. A subharmonic synthesizer can be used to extend low frequency response due to bandwidth limitations of telephone systems. Subharmonic

than 1 part in 1020 in the low-frequency band about a millihertz. A LISA-like detector is sensitive to the low-frequency band of the gravitational-wave

left and right speakers, a lower-price option known as "2.1") and a low-frequency subwoofer cabinet. Manufacturers also have come out with the "soundbar"

are often characterized by the frequency of their output signal: A low-frequency oscillator (LFO) is an oscillator that generates a frequency below approximately

to zero. Statistically, images have more low-frequency than high-frequency content, so it is the low-frequency content that remains after quantization

system, an element called a junction is used for power division. In a low frequency electrical network, it is possible to combine circuit elements in series

The fluctuations are usually of low amplitude, less than 1 mV, and of low-frequency bandpass filtered RMS value (DC and high-frequency AC components removed)

equalisation of the signals to account for the differences in the high- and low-frequency sound localisation mechanisms in human hearing. A further refinement

an resonator to aid in the detection or gauge the point of origin of low frequency signals across a greater distance. In Corythoraptor, the latter may

field is dominant. A magnetoquasistatic field is typically generated by low-frequency induction from a magnetic dipole or a current loop. The magnetic near-field

Turkish Navy. He also played an active role in establishing the very low frequency facility to provide communications with the submarines as well as ensuring

Pulse-synchronous oscillopsia Hyperacusis – the over-sensitivity to sound Low-frequency conductive hearing loss A feeling of fullness in the affected ear Brain

a lack of synchronization of power plants, loss of balance, and a low frequency in the network. In about 30 seconds, a succession of automatic disconnections

stiff. This bending, in the range of a few millimetres, does not affect low frequency operation much, but dramatically reduces the efficiency of the telescope

Genome instability (also genetic instability or genomic instability) refers to a high frequency of mutations within the genome of a cellular lineage. These

echolocation call attenuates with distance faster than low frequency, this species uses low frequency calls with high intensity, which last longer and thus

frequency is modulated from 10, 30, and 60 cycles/s (Hz) to 29 kHz. The low frequency enables cutting of mineralized structures, not soft tissue. Power can

Ambitalk is a Trunked radio system operating in the VHF-Low frequency range. It allows users to make private or "group" voice calls between vehicle based

marginal zone of Múlajokull outlet glacier, central Iceland: Evidence from low frequency GPR data, Department of Geography and Earth Sciences, University of

Transcranial pulsed ultrasound (TPU) uses low intensity, low frequency ultrasound (LILFU) to stimulate the brain. In 2002, Dr. Alexander Bystritsky first

This illustration depicts the principle of sediment echo sounding, which uses a narrow beam of high energy and low frequency

{\text{ln}}\left[1+{\frac {e^{\frac {h\nu }{kT}}-1}{\epsilon }}\right]} At low frequency and high temperatures, when h ν ≪ k T {\displaystyle h\nu \ll kT} ,

hydrophones. The system, using equipment termed Low Frequency Analyzer and Recorder and a process termed Low Frequency Analysis and Recording, both with the acronym

with syncopated breakbeats in addition to 4-to-the-floor beats and low frequency basslines. It also saw the introduction of effects such as pitch shifting

require less maintenance. The early Italian and Swiss systems used a low frequency (16+2⁄3 Hz), and a relatively low voltage (3,000 or 3,600 volts) compared

vestibule, the Dinilysia patagonica was a species especially sensitive to low-frequency ground vibrations rather than airborne frequencies. The surmounting

(PTSD), HRV and its HF component (see below) is reduced whilst the low-frequency (LF) component is elevated. Furthermore, PTSD patients demonstrated

vestibule, the Dinilysia patagonica was a species especially sensitive to low-frequency ground vibrations rather than airborne frequencies. The surmounting

A tornillo event is a low-frequency seismic event associated with volcanoes. The term, which means "screw" in Spanish, was coined in the mid-1990s at

Asia, East Europe. It is found in a much more widespread area with a low frequency of less than 2%. The haplogroup C-M217 is now found at high frequencies

Radio / IET labs 1417 is one such example. Capacitor multipliers make low-frequency filters and long-duration timing circuits possible that would be impractical

High-pressure mercury vapour lamps – Performance specifications IEC 60189 Low-frequency cables and wires with PVC insulation and PVC sheath IEC 60191 Mechanical

rabbits, dogs, cats, and marsupials. "Cortical theta rhythms" are low-frequency components of scalp EEG, usually recorded from humans. Theta rhythms

is a primary branch of haplogroup G2 (P287). G2a1 has an extremely low frequency in almost all populations except parts of the Caucasus Mountains. In

processing equipment. Megasound selected soundtrack events with much low-frequency content (thuds, crashes, explosions, etc.) were directed to these speakers

line voltage to that used by the motors and their speed control gear. Low frequency transformers need to have heavier magnetic cores and larger windings

depending on the intensity of stimulation, coil orientation, and frequency. Low frequency rTMS with a stimulus frequency less than 1 Hz is believed to inhibit

Interbeing (DK) The Intersphere (DE) The Jury & The Saints (NZ) The Low Frequency in Stereo (NO) The Royal (NL) Throw the Fight (US) Tides from Nebula

oscillator. It generates a sawtooth output waveform. It has been used in low frequency applications such as blinking warning lights, stroboscopes, tone generators

effect, is "an imbalance in brain-cell activity caused by exposure to low-frequency flickering (or flashing) of a relatively bright light." It is a disorientation-

electromagnetic metamaterials. The double negative parameters are a result of low-frequency resonances. In combination with a well-defined polarization during wave

output of the array at sea was processed and displayed by means of the Low Frequency Analyzer and Recorder (LOFAR), was classified until 1991 with "oceanographic

power amplifiers) also employ direct coupling to cut cost and improve low frequency performance. One advantage or disadvantage (depending on application)

and Radio Corporation of Fort Wayne, Indiana. Variants include the low frequency coverage BC-344 receiver, and the battery or dynamotor powered BC-312

Navigation radar: Terma Electronic Scanter 2001 Sonar: EDO Model 980 active low frequency towed sonar (ALOFTS) Armament Anti-ship: 8× RGM-84C Harpoon SSM Anti-air:

in mammals, the cochlea is coiled, which has been shown to enhance low-frequency vibrations as they travel through the fluid-filled coil. This spatial

limit depending on the device's classification. Conducted immunity Low frequency signals (usually 10 kHz to 80 MHz) are injected onto the data and power

the creation of bus routes which cover a wide area and operate at a low frequency. The consequence is that bus travel is not competitive with travel by

West arm of the low-frequency Ukrainian T-shaped Radio telescope, second modification (UTR-2) radio telescope phased array antenna

the non-linear magnetic response of the material under a mixture of low-frequency (in the 10 Hz to 1000 Hz range) magnetic fields. When the ferromagnetic

truck-mounted or buggy-mounted device that is capable of injecting low-frequency vibrations into the earth. It is one of a number of seismic sources

pockmarked, faded palette of the frame, deaf voices, and the use of low-frequency background sound. The film premiered in the Cannes Premiere section

important facility for transmitting orders to submarines in the very low frequency range. Beside this, it is used for transmitting the time signal RJH69

nematic liquid crystals is accompanied by an electro-optic response to low-frequency electric fields, i.e. applied voltages, nematicons and the associated

frequency drops too far (between 48.8 Hz down to 47.8 Hz) then the Low Frequency Demand Disconnection (LFDD) automatic cutouts progressively trigger

 516–517. ISBN 978-1-316-03341-8. Green, D.A. (26 May 2016). "Cambridge Low Frequency Surveys". Symposium - International Astronomical Union. 199: 21–24.

Chang'e 4 lunar far-side mission; conducting joint China-Netherlands low frequency astronomy experiment. Launched: 21:28 UT on 20 May 2018 Destination:

limited to higher frequencies. That means a signal that is primarily low-frequency does not necessarily require noise reduction. Instead, one can simply

response to low-frequency electromagnetic waves is similar to that of a metal: a plasma simply reflects incident low-frequency radiation. Low-frequency means

detection systems. Its technology uses Apple iPad, thermal imaging cameras, low-frequency electro-magnetic technology, and artificial intelligence to detect threats

frogs are larger than males. Pairs breed through amplexus. Males emit low frequency advertisement calls to attract females. During mating competition, males

Knudsen, renowned UCLA acoustical physicist, "The distribution of the low frequency normal mode in a rectangular room", which was considered later as the

surface sources and thus consists mostly of elastic surface waves. Low frequency waves (below 1 Hz) are commonly called microseisms and high frequency

channels and a broad-band channel sampled low-frequency variations. The rms spectrometer channels sampled low-frequency variations from 0.3 to 1, 1 to 3, 3

with soft, breathy, low-frequency 'hoo's' that transition into the build-up phase; a series of increasingly rapid, low-frequency in-and-out pants. Following

Project Kayo, which experimented with the use of passive acoustics with low-frequency, bow-mounted sonar arrays. When the boat was rigged for silent running

Project Kayo, which experimented with the use of passive acoustics with low-frequency, bow-mounted sonar arrays. When the boat was rigged for silent running

effective tension on the magnetic field lines. An Alfvén wave is a low-frequency (compared to the ion gyrofrequency) travelling oscillation of the ions

consists of evolving dissonant harmonies of drones and resonances, low frequency rumbles and machine noises, sometimes supplemented by gongs, percussive

(short wave vector) spin waves, the resulting spin precession has a very low frequency and the spin waves can be treated classically. Ferromagnetic resonance

the development of the field of phonon engineering; investigation of low-frequency electronic noise in materials and devices; and demonstration of the

noticeable low-frequency "grunt" at the end of each note produced, caused by the piston decelerating as the air supply was cut. As this low-frequency sound

emission can be affected by several absorption processes that affect the low-frequency emission the most; the reduction in the observed emission at low frequencies

2006-12-30. Esper, Jan; Cook, Edward R.; Schweingruber, Fritz H. (2002). "Low-frequency signals in long tree-ring chronologies and the reconstruction of past

vascular sympathetic activity and an increase in the vagal modulation. Low-frequency oscillation estimated from systolic blood pressure variability seems

alpacas could be reliably distinguished from Huacayas by looking for a low frequency of hairs less than 35 micrometers in diameter, as well as fewer hairs

in the Middle East, Europe, and Southern Africa. E-M281 occurs at a low frequency in Ethiopia. The origins of E-M215 were dated by Cruciani in 2007 to

generates complex audio signal waveforms by combining the outputs of a low frequency oscillator, variable frequency (voltage controlled) oscillator (VCO)

thiogermanates are also of interest for infrared optics, since they only absorb low frequency IR modes. Vincent, H.; Bertaut, E. F.; Baur, W. H.; Shannon, R. D. (1976)

extension work to replace the conventional bow in order to convert it to a low-frequency long-range prototype bow sonar T-101 experimental ship under development

polymers, or organic electro-optic materials, with an incident static or low frequency optical field will see a modulation of its refractive index. The simplest

skull reveal that Niolamia likely had a great sense of smell but only low frequency hearing, indicating that these animals communicated more through chemical

the radio telescopes known as the Murchison Widefield Array (MWA), a low-frequency array operating in the frequency range 80–300 MHz; and the Australian

by fluid shear, friction or buoyancy, or through external forcing at low-frequency eddy scales (integral scale). Turbulence kinetic energy is then transferred

in túngara frog mating. They favor complex calls over simple calls, low frequency chucks over high frequency chucks, and conspecific whine over heterospecific

noise, called adaptive noise shaping (ANS), in order to overcome the low frequency resolution of the polyphase quadrature filter bands. MPC uses the APEv2

of low frequency in letter naming, same-different matching, and visual search. Letters of high frequency are recognized faster than letters of low frequency

inputs signals, leaving the steady state output unaffected by unwanted low frequency inputs. The common transfer function for a washout filter is: G ( s

"Commander Guevara" 7:02 3. "Oceans of Borrowed Money" 5:10 4. "Aisha" 5:41 5. "Night Air & Low Frequency" 9:15 6. "White Arc Spiral" 5:38 7. "Aghora" 9:47

sounds, but not music or machinery noise as these sources contain more low frequency energy than speech. There are many ways to improve the sound transmission

Sounds below sub-bass are infrasound. 20 Hz is considered the normal low-frequency limit of human hearing. When pure sine waves are reproduced under ideal

replaced the inertial navigation and tactical display systems with low-frequency navigation system and digital computer. The IRDS/HACLS modifications

the Altec. Both designs placed the high frequency driver behind the low frequency driver, and both were not initially time aligned. The high frequencies

aphasiacs can repeat high-frequency, simple words, their ability to repeat low-frequency, complex words is impaired. The Spt is responsible for connecting the

sounds but not high-pitched ones. The hearing aid acoustically amplifies low-frequency sounds, while the cochlear implant electrically stimulates the middle-

nearly solid-like mechanical response and possess a surprisingly large low-frequency elastic shear modulus, which scales with the inverse cubic power of

which are integrated into specially designed repeaters, translate a low-frequency group to a high-frequency group, and vice versa. A frequency channel

cultivator Rotary woofer, a type of loudspeaker capable of producing very low frequency sound Rotary wing aircraft Rotary International, or Rotary Club, an

Since there are an infinite number of logarithmic bands at both the low frequency (DC) and high frequency ends of the spectrum, any finite energy spectrum

the Precision Array for Probing the Epoch of Reionization (PAPER), Low Frequency Array (LOFAR), Murchison Widefield Array (MWA), and Giant Metrewave

from high to low frequency is very abrupt. When the observer is far from the path of the object, the transition from high to low frequency is gradual.

Project Kayo, which experimented with the use of passive acoustics via low-frequency bow-mounted sonar arrays. When the boat was rigged for silent running

splitting the signal from his bass into dual high and low frequency outputs and then sending the low frequency output to a conventional bass amplifier and the

augmented by a separate sub woofer or by a special cabinet design for low frequency reinforcement. These requirements usually mean that the full-range must

in the inner ear of the female are tuned between 2100 and 3700 Hz. Low frequency calls exhibited by male spring peepers are easier to detect and are

an image more even, the high-frequency components are increased and low-frequency components are decreased, because the high-frequency components are

omitted. For derivation of the formulas below, see Rosa (1908). The total low frequency inductance (interior plus exterior) of a straight wire is: L DC = 200

at the edge of the disc more clearly than other surveys. Using the LOw-Frequency ARray (LOFAR), astronomers of the University of Hamburg discovered a