High frequency Sentence Examples

The transducer generates high-frequency sound waves through the tissues.

To detect these currents some device has to be inserted in the antenna circuit or else inductively connected with it which is sensitive to high frequency currents.

It very soon, therefore, became clear to inventors that a very great advantage would be gained if some means could be discovered of creating high frequency oscillations which were not intermittent but continuous.

In constructing a hot-wire instrument for the measurement of high frequency currents it is necessary to make the working wire of a number of fine wires placed in parallel and slightly separated from one another, and to rpass the whole of the current to be measured through this strand.

Thus pitch is a soft and yielding body under steady stress, but a bar of pitch if struck gives a musical note, which shows that it vibrates and is therefore stiff or elastic for high frequency stress.

He confirmed an opinion already previously expressed by Helmholtz and by Henry, that in some circumstances this discharge is oscillatory in nature, consisting of an alternating electric current of high frequency.

It was a slightly windier month than normal - with an extremely high frequency of SE'ly winds due to a persistent anticyclone over Scandinavia.

Lighting - High frequency ballast lighting is used throughout.

Most noticeable has always been the high-frequency roll-off that resulted from limited speaker dispersion characteristics.

Affected dogs have high blood creatine kinase concentrations and bizarre high frequency discharges on electromyographic examination.

The family of electromagnetic waves from the high-frequency gamma rays to the relatively low-frequency radio waves forms what is called the electromagnetic spectrum.

The high frequency modulation moves the signal away from 1/f noise region.

We thus found a high frequency of allele-specific and locus-specific down-regulation of HLA expression in uveal melanoma cell lines.

Lamp dimmers, speed controllers in food processors and washing machines, and energy saving (high-frequency) lamp dimmers, speed controllers in food processors and washing machines, and energy saving (high-frequency) lamps all fall into this category.

The fauna present at the baited lander where photographed at high frequency for periods of up to 6 months.

The ability to read texts with high frequency lexis and personal letters.

In the high-frequency condition, the synchronous masker had only a small effect, but the asynchronous masker reduced performance dramatically.

To allow the transmission of high frequency sounds, the stapes is used as an auditory ossicle.

However the inertia of the coil reduces high frequency response.

Further, the signal may be a slowly varying low frequency anharmonic oscillation, or a high frequency sinusoid.

What I DO notice is that roads with a coarse, or damaged, top dressing can induce pronounced high-frequency vibration.

It has sometimes been claimed that Edison's proposed elevated plates anticipated the subsequent invention by Marconi of the aerial wire or antenna, but it is particularly to be noticed that Edison employed no spark gap or means for creating electrical high frequency oscillations in these wires.

It was seen that the effect of the impact of the incident electric waves upon the vertical receiving wire was to create in it electrical oscillations, or in other words, high frequency alternating electric currents, such that whilst the potential variations were a maximum at the top or insulated end of the antenna the current at that point was zero and at the base the potential variation was zero and the current amplitude a maximum.

The instrument can be calibrated by continuous currents and may then be used for high frequency alternating currents.

Leyden jars are now much employed for the production of the high frequency electric currents used in wireless telegraphy (see Telegraphy, Wireless).

The tweeter unit is derived from a thorough understanding of high frequency acoustics.

During the echo, an ultrasound transducer (hand-held wand placed on the skin of the chest) emits high-frequency sound waves to produce pictures of the heart's valves and chambers.

In a neurosonogram, ultra high frequency sound waves are used to analyze blood flow and possible blockages in the blood vessels in or leading to the brain.

An echo uses ultrasound, or high-frequency sound waves, to create an image of the heart's internal structures.

A combination of high-frequency ultrasound and color Doppler studies has also been shown to have a high degree of accuracy in distinguishing between melanomas and benign moles.

An echocardiogram uses ultrasound, or high-frequency sound waves, to display an image of the heart's internal structures.

An echocardiogram (echo) uses ultrasound, or high-frequency sound waves, to display an image of the heart's internal structures.

The most common way of measuring auditory discrimination with P300 is the oddball paradigm, in which a series of low-frequency auditory stimuli is randomly interspersed with high-frequency stimuli.

The child attempts to count the number of high-frequency pitches.

Some patients with TS, however, have been successfully treated with stereotactic surgery involving high-frequency stimulation of the thalamus.

Traveler's diarrhea-An illness due to infection from a bacteria or parasite that occurs in persons traveling to areas where there is a high frequency of the illness.

It is not uncommon for teenagers to become permanently hearing impaired in the high-frequency range above 4,000 hertz.

High-frequency hearing impairment in teenagers most often results from exposure to loud noise such as amplified music.

The flutter valve is a hand-held mucus clearance device designed to combine positive expiratory pressure (PEP) with high frequency airway oscillations.

Hence, when the coil at one fixed station was in action it generated high frequency alternating currents, which were propagated across the air gap between the ordinary telegraph wires and the metallic surfaces attached to one secondary terminal of the induction coil, and conveyed along the ordinary telegraph wires between station and moving train.

The electric waves coming through space from the sending station strike against the receiving antenna and set up in it high frequency alternating electromotive forces.

They were of limited success, causing poliomyelitis at a high frequency in recipients.