A high frequency starter was used to start the arc.

A modulation frequency of 40 cps with an amplitude as small as possible, commensurate with reasonably good signal-to-noise quality, was used.

Moseley, after discussions with Bohr who was at the same lab ( and who had used Van den Broek's hypothesis in his Bohr model of the atom ), decided to test Van den Broek and Bohr's hypothesis directly, by seeing if spectral lines emitted from excited atoms fit the Bohr theory's demand that the frequency of the spectral lines be proportional to a measure of the square of Z.

While current mouthwash treatments must be used with a degree of frequency to prevent this bacteria from regrowing, future treatments could provide a viable long term solution.

An equivalent definition is the radius of an unperturbed circular Newtonian orbit about the Sun of a particle having infinitesimal mass, moving with an angular frequency of radians per day ; or that length such that, when used to describe the positions of the objects in the Solar System, the heliocentric gravitational constant ( the product GM < sub >☉</ sub >) is equal to ()< sup > 2 </ sup > AU < sup > 3 </ sup >/ d < sup > 2 </ sup >.

Despite the frequency with which this name is used as a polemical label, there has been no historically continuous survival of Arianism into the modern era.

The frequency of alleles in a diploid population can be used to predict the frequencies of the corresponding genotypes ( see Hardy-Weinberg principle ).

Moderate use of equalization ( often abbreviated as " EQ ") can be used to " fine-tune " the tone quality of a recording ; extreme use of equalization, such as heavily cutting a certain frequency can create more unusual effects.

Amplifiers may be classified in a variety of ways depending on their application, the frequency range they cover, or the active devices used.

Other bilinear transforms can be used to warp the frequency response of any discrete-time linear system ( for example to approximate the non-linear frequency resolution of the human auditory system ) and are implementable in the discrete domain by replacing a system's unit delays with first order all-pass filters.

The Hankel functions are used to express outward-and inward-propagating cylindrical wave solutions of the cylindrical wave equation, respectively ( or vice versa, depending on the sign convention for the frequency ).

Selective serotonin reuptake inhibitors are likely to be the best choice of pharmacotherapy for many patients with panic disorder, but benzodiazepines are also often used, and some studies suggest that these medications are still used with greater frequency than the SSRIs.

He became the most famous film star in the world before the end of World War I. Chaplin used mime, slapstick and other visual comedy routines, and continued well into the era of the talkies, though his films decreased in frequency from the end of the 1920s.

UTF-16 or UTF-32, which can be used for all languages as well, are less widely used because they can be harder to handle in programming languages that assume a byte-oriented ASCII superset encoding, and they are less efficient for text with a high frequency of ASCII characters, which is usually the case for HTML documents.

In 1967, a specific frequency from the emission spectrum of caesium-133 was chosen to be used in the definition of the second by the International System of Units.

The FrogPad is a 20-key chorded keyboard about the size of a numeric keypad that can be used with one hand, and is optimized by character frequency.

In addition to the damped disc centres which reduce driveline vibration, pre-dampers may be used to reduce gear rattle at idle by changing the natural frequency of the disc.

For example, diodes are used to regulate voltage ( Zener diodes ), to protect circuits from high voltage surges ( avalanche diodes ), to electronically tune radio and TV receivers ( varactor diodes ), to generate radio frequency oscillations ( tunnel diodes, Gunn diodes, IMPATT diodes ), and to produce light ( light emitting diodes ).

They are used as radio frequency switches and attenuators.

* An abacus was created sometime between 1000 BC and 500 BC, it later become a form of calculation frequency, nowadays it can be used as a very advanced, yet basic digital calculator that uses beads on rows to represent numbers.

There are some commonly used frequency domain transformations.

And his performances attracted much attention, as the frequency of his surviving pieces in any calendar that may be set up for his undergraduate activities testifies.

Accordingly, the Commission has recognized that an optimum allocation pattern for one frequency does not necessarily represent the best pattern for other frequencies, and has assigned different frequencies for use by different classes of stations.

Thomas also presents a simple equation for deriving an index of persistence, which weights not only the number of stems ( ' roots ' ) per meaning, but their relative frequency.

In addition, the cutoff frequency for input accelerations is approximately proportional to the servo loop gain ; ;

* Optical frequency comb for metrology and timekeeping

In the Southwest, mountain ranges, rivers and, most obviously, the Grand Canyon can be significant barriers for human communities, likely reducing the frequency of contact with other groups.

The acoustic equations for the conservation of momentum and the conservation of mass are often expressed in time harmonic form ( at fixed frequency ).

The alternating current power line frequency of 60 Hz was the primary clock rate for the lowest level operations.

Observation of electron tracks independent of the frequency of the incident photon suggested a mechanism for electron ionization that was caused from an internal conversion of energy from a radiationless transition.

The television system for each country will specify a number of television channels within the UHF or VHF frequency ranges.

The channel frequencies chosen represent a compromise between allowing enough bandwidth for video ( and hence satisfactory picture resolution ), and allowing enough channels to be packed into the available frequency band.

This noise can be avoided by modulation of the signal at a higher frequency, for example through the use of a lock-in amplifier.

It is a mathematical tool for finding repeating patterns, such as the presence of a periodic signal which has been buried under noise, or identifying the missing fundamental frequency in a signal implied by its harmonic frequencies.

Bandwidths ( otherwise called " frequency responses ") for other response tolerances are sometimes quoted (, etc.

In radio communications, for example, bandwidth is the frequency range occupied by a modulated carrier wave, whereas in optics it is the width of an individual spectral line or the entire spectral range.

This means that for every feature that one sees in the frequency response of the analog filter, there is a corresponding feature, with identical gain and phase shift, in the frequency response of the digital filter but, perhaps, at a somewhat different frequency.

When now we count the frequency of the 71 items in the two language families appearing in the same column or grade, or one column or grade apart, or two or three or four, we find these differences: Af

What does it mean to be creative, a term we hear with increasing frequency these days??

The square root of the frequency of these photons ( x-rays ) increased from one target to the next in a linear fashion.

Substitution of these expressions into the governing equations in cylindrical coordinates gives us the fixed frequency form of the conservation of momentum

There is speculation as to whether this condition may occur with greater frequency in the general, untreated population ; successful social function of these potentially high-achieving individuals may lead to being labeled as normal, rather than as individuals suffering any substantial dysregulation.

CPUs designed for high-performance markets might require custom designs for each of these items to achieve frequency, power-dissipation, and chip-area goals.

It is characterized by the representation of discrete time, discrete frequency, or other discrete domain signals by a sequence of numbers or symbols and the processing of these signals.

For these thermal effects, the frequency of the radiation is important only as it affects radiation penetration into the organism ( for example microwaves penetrate better than infrared ).

Using transforms it is possible to convert these continuous time frequency responses to ones that are implemented in discrete time, for use in digital IIR filters.

The studies noted that it would be impossible to assume conclusively the likely protective effect of the " other sex acts " including oral sex, or that the correlation between these sexual practices was due to the presence of collinearity induced by some other protective factor not noted in the studies: for example, greater overall frequency of sex.

Examples of FTL proposals are changing the " frequency " of mass to a higher state by applying high-frequency waves of energy, the Alcubierre drive, and the traversable wormhole, although the physical plausibility of some of these solutions is uncertain.

A sufficient condition for recovering s ( t ) ( and therefore S ( ƒ )) from just these samples is that the non-zero portion of s ( t ) be confined to a known interval of duration P, which is the frequency domain dual of the Nyquist – Shannon sampling theorem.

Light sent down into a gravity well is blueshifted, whereas light sent in the opposite direction ( i. e., climbing out of the gravity well ) is redshifted ; collectively, these two effects are known as the gravitational frequency shift.

The frequency of these oscillations lies in the ultraviolet range for most metals, but it falls into the visible range for gold due to subtle relativistic effects that affect the orbitals around gold atoms.

: For both of these processes, the energy loss per cycle of alternating current is constant, so core losses increase linearly with frequency.

Using inputs such as input voltage, output voltage, output current, frequency, ambient temperature, and inductance these calculators can predict the losses of the inductors core and AC / DC based on the operating condition of the circuit being used.

At the most basic level, initial ratemaking involves looking at the frequency and severity of insured perils and the expected average payout resulting from these perils.

The powerful emissions of these devices can create electromagnetic interference and disrupt radio communication using the same frequency, so these devices were limited to certain bands of frequencies.

Many of these lasers actually lase in several longitudinal modes at the same time, and beats between the slightly different optical frequencies of those oscillations will in fact produce amplitude variations on time scales shorter than the round-trip time ( the reciprocal of the frequency spacing between modes ), typically a few nanoseconds or less.

In most cases these lasers are still termed " continuous wave " as their output power is steady when averaged over any longer time periods, with the very high frequency power variations having little or no impact in the intended application.

Any of these properties can be modified in accordance with a low frequency signal to obtain the modulated signal.

The first of these factors is the magnetron's inherent instability in its transmitter frequency.