Betekenis van:
low frequency

low frequency
Zelfstandig naamwoord
  • laagfrequentie
  • a pitch that is perceived as below other pitches

Synoniemen

Hyperoniemen

Hyponiemen

low frequency
Zelfstandig naamwoord
    • 30 to 300 kilohertz

    Synoniemen

    Hyperoniemen


    Voorbeeldzinnen

    1. Distribution in time and place of loud, low and mid frequency impulsive sounds
    2. For both tests low-pass filtering at an appropriate frequency is permitted, to remove higher frequency noise without significantly affecting the measurement of the response of the impactor.
    3. Some birds, for example the pigeon, are considered to be able to hear very low frequency sounds.
    4. Although infrasound (sound below 16 Hz) is unlikely to cause distress, birds should be housed away from any equipment that emits low frequency vibrations whenever possible.
    5. This frequency may be reduced in specific areas, or for specific types of molluscs, if a risk assessment on toxins or phytoplankton occurrence suggests a very low risk of toxic episodes.
    6. In a sea state with irregular waves the drift speed will not be constant; a constant carriage speed would result in low frequency, large amplitude drift oscillations, which may affect the model behaviour.
    7. Both ETSI and the CEPT have confirmed that the amendment to these technical parameters does not change the protection vis-à-vis the other services sharing the spectrum with WAS/RLANs and keeps in particular the aggregate interference from RLANs operating in the frequency band 5150-5350 MHz to a level sufficiently low so that interference to satellite communications would be avoided.
    8. The Commission's market investigation confirmed that the proposal leads to numerous horizontal and vertical overlaps in the fields of power generation (see Section A), power transmission and distribution (B), rail transport technology (C), frequency inverters (D), metallurgical and electrical plant building (E), low-voltage switchgear (F), building technology (G), infrastructure and ropeways (H) and other IT services (I).
    9. The minimum amount of cover for personal injury should be calculated so as to compensate fully and fairly all victims who have suffered very serious injuries, whilst taking into account the low frequency of accidents involving several victims and the small number of accidents in which several victims suffer very serious injuries in the course of one and the same event.
    10. To address practical problems, the rules should be amended regarding holdings producing lambs for further fattening, the introduction of ewes of unknown genotype to infected holdings, and the time period during which derogations are to apply for the destruction of animals in holdings or breeds in which the frequency of the ARR allele is low.
    11. where the frequency of the ARR allele within the breed or holding is low or absent, or where it is deemed necessary in order to avoid inbreeding, a Member State may decide to delay the destruction of the animals referred to in point 2.3 (b)(i) and (ii) for up to five breeding years provided that no breeding rams other than those of the ARR/ARR genotype are present on the holding.
    12. providing further studies on electromagnetic field (EMF) as per the gaps identified by the EU Scientific Committees, relevant projects and the WHO (namely on the long-term effects of low-level exposure to EMF, including Radio Frequency IDentification — RFID) and feasibility study on alert indicators and EMF-related monitoring needs; promotion of studies on risk perception and communication best practices, support for the development of EMF dosimetry guidelines and installation guidelines for electric and mobile phone companies;
    13. "Time-modulated ultra-wideband" (5) means the technique in which very short precisely time-controlled RF pulses are modulated in accordance with communications data by shifting pulse positions (usually called Pulse Position Modulation, PPM) channelised or scrambled in accordance with pseudo-random noise codes by PPM, then transmitted and received in the direct pulse form without using any carrier frequencies, consequently having extremely low power density over ultra-wide frequency bands.
    14. "Time constant" (6) is the time taken from the application of a light stimulus for the current increment to reach a value of 1-1/e times the final value (i.e., 63 % of the final value). "Time-modulated ultra-wideband" (5) means the technique in which very short precisely time-controlled RF pulses are modulated in accordance with communications data by shifting pulse positions (usually called Pulse Position Modulation, PPM) channelised or scrambled in accordance with pseudo-random noise codes by PPM, then transmitted and received in the direct pulse form without using any carrier frequencies, consequently having extremely low power density over ultra-wide frequency bands. It is also known as Impulse Radio.
    15. The analysis conducted in the light of Article 87(3)(c) has identified two potential market failures specific to the digital switch-over of the terrestrial broadcasting platform: coordination problems between the different market players in achieving a smooth switch-over process and positive externalities associated with the freeing-up of frequency spectrum. While these market failures may, in principle, justify a departure from the principle of technological neutrality, they cannot serve as justification for the aid granted in the present case. Accordingly, the Commission is not convinced that the aid is an appropriate, necessary and proportionate instrument to remedy a market failure and to promote the roll-out of DVB-T. Even if account is taken of the fact that the amount of aid is relatively low in absolute terms and that the distortion of competition at broadcasting level is rather limited, the aid amounts, in case of some channels, to close to half of the transmission costs and may have influenced the choice of broadcasters in favour of the DVB-T platform, thereby causing a more important distortion of competition at network level.