Such additional daytime class 2, assignments are appropriate if optimum use is to be made of these frequencies, and the Commission has over the years made a large number of them.

Such systems often combine two radar frequencies in the same antenna in order to allow automatic steering, or radar lock.

Such a restriction works in theory but is not precisely realizable, because realizable filters will always allow some leakage of high frequencies.

Such devices, called analog multipliers, exist and are used as mixers at lower frequencies, but do not function well at the RF frequencies where heterodyning is usually used.

Such low frequencies can induce nausea, headache, disorientation and dizziness.

Such a system receives its signal from the main mono or stereo mixing console mix bus and amplifies all frequencies together in the desired balance.

Such large frequencies of R1a have been found only in Eastern Europe ( Sorbs, Poles and Ukrainians ; at about 50 to 65 %), Central Asia and South Asia.

Such a static filter would need to remove all the frequencies in the vicinity of 50 Hz, which could excessively degrade the quality of the ECG since the heart beat would also likely have frequency components in the rejected range.

Such interference results from clashing frequency allocations, and occasionally requires wholesale reallocation of an existing band due to an insurmountable interference problem ; for example, the 2004 approval in Canada of the unlicensed use of the United States General Mobile Radio Service frequencies due to interference from users of FRS / GMRS radios from the United States, where Industry Canada had to transfer a number of licensed users on the GMRS frequencies to unoccupied channels to accommodate the expanded service.

Such devices do not present as pure negative resistance at these frequencies ( in the case of the tunnel diode a large parallel capacitance is also present ) and a matching filter is usually required.

Such frequencies are commonly in the range of 1 – 100 MHz.

Such large frequencies of R1a are frequent throughout Northern, Central and Eastern Europe.

Such ' non-thermal ' effects include how the actual frequencies interfere with the human brain and all other cells in the human body.

Such large frequencies of R1a have been found only in East Europe and India.

Such uniform instructions were easily fetched, decoded and executed in a pipelined fashion and a simple strategy to reduce the number of logic levels in order to reach high operating frequencies ; instruction cache-memories compensated for the higher operating frequency and inherently low code density while large register sets were used to factor out as much of the ( slow ) memory accesses as possible.

Such partnerships do not normally allow the local authority to set fares or service frequencies.

Such a filter merges the two channels to mono at very low frequencies, which is not generally considered to have any effect on stereo perception, though it can change the sound balance ( often for the better ) by altering the way in which resonant room modes are stimulated ( reducing corner to corner stimulation ).

Such measures can be used in statistical hypothesis testing, e. g. to test for normality of residuals, to test whether two samples are drawn from identical distributions ( see Kolmogorov – Smirnov test ), or whether outcome frequencies follow a specified distribution ( see Pearson's chi-squared test ).

Such a beam must come " straight " to the observer along a line which connects the observer with the position of the object when it emitted the light.

Such " dark stars " were largely ignored in the nineteenth century, since it was not understood how a massless wave such as light could be influenced by gravity.

Such reaction requires addition of energy in the form of heat or light.

Such semi-transparent sheets also strongly reflect infrared light, making them useful as infrared ( radiant heat ) shields in visors of heat-resistant suits, and in sun-visors for spacesuits.

Such algorithms take into account not only the light which comes directly from a light source ( direct illumination ), but also subsequent cases in which light rays from the same source are reflected by other surfaces in the scene, whether reflective or not ( indirect illumination ).

Such lasers are said to be superluminescent, and emit light with low coherence but high bandwidth.

Such distortions of Germanic mythology were denounced by J. R. R. Tolkien, e. g. in a 1941 letter where he speaks of Hitler's corruption of "... that noble northern spirit, a supreme contribution to Europe, which I have ever loved and tried to present in its true light.

Such PLCs typically have a restricted regular instruction set augmented with safety-specific instructions designed to interface with emergency stops, light screens and so forth.

Such weather phenomena as fog, clouds, rain, falling snow, and sleet that block visible light are usually transparent to radio waves.

Such independent organization persisted until the 2nd century BC amongst light infantry and cavalry, but was discarded completely in later periods with the supporting role taken instead by allied troops.

Such dispersion of light in glass or water underlies the origin of rainbows and other optical phenomena, in which different wavelengths appear as different colors.

Such effects occur when light is reflected off the " silk " ( the structurally oriented rutile needle inclusions ) in a certain way.

:" Such algebras have an intrinsic value for separate detailed study ; also they are worthy of comparative study, for the sake of the light thereby thrown on the general theory of symbolic reasoning, and on algebraic symbolism in particular.

Such devices include mirrors and filters, usually treated with optical coatings, which are designed to reflect light over a certain range of wavelengths, and transmit light which is outside that range.

Such local currency initiatives have been more widely criticized in light of limited success stimulating new spending in local economies and as an unrealistic strategy to reduce carbon emissions.

Such minerals are composed of parallel fibers ( or contain fibrous voids or inclusions ), which reflect light into a direction perpendicular to their orientation, thus forming narrow bands of light.

Such structural colouration causes the iridescence of the peacock's hues, since unlike pigments, interference effects depend on light angle.

Such inks are usually visible under ultraviolet light.

Such local currency initiatives have been more widely criticized in light of limited success stimulating new spending in local economies and as an unrealistic strategy to reduce carbon emissions.

Such reactions are usually conducted in the presence of an acid catalyst or UV light.

Such spontaneous posterior dislocations ( akin to the historical surgical procedure of couching ) in ancient times were regarded as a blessing from the heavens, because some perception of light was restored in the cataractous patients.

Such linearized gravitational waves are sufficiently accurate to describe the exceedingly weak waves that are expected to arrive here on Earth from far-off cosmic events, which typically result in relative distances increasing and decreasing by or less.

Such a maritime clock had to be not only highly accurate over long time intervals, but relatively impervious to corrosion in salt air, able to tolerate wide variations in temperature and humidity and in general durable while able to function at the odd angles and pitch and yaw typical of decks under strong waves and storm tossed conditions.

Such waves propagate away from the planet ( towards upper left ).

Such systems have ( in the classical limit ) an infinite number of normal modes and their oscillations occur in the form of waves that can characteristically propagate.

Such waves can be theoretically explained in terms of interacting P-and / or S-waves.

Such waves are sometimes regarded as having a wavelength even though they are not sinusoidal.

Such nonuniform traveling waves are common in many physical problems, including the mechanics of the cochlea and waves on hanging ropes.

Each term may be interpreted as a spherical wave that expands or contracts with velocity c. Such waves are generated by a point source, and they make possible sharp signals whose form is altered only by a decrease in amplitude as r increases ( see an illustration of a spherical wave on the top right ).

Such waves exist only in cases of space with odd dimensions.

Such re-scattered waves are called " secondary scattering " and hinder the analysis.

Such waves are often exploited by glider pilots.

Such an explosion would generate powerful shock waves, which would be transmitted very effectively through the solid material comprising the shielding ( see " scabbing " above ).

Such cold waves have caused famines.

Such pairs of accelerometers in theory may also be able to detect gravitational waves.

Such waves can travel faster through relatively colder material.

Such top down biasing can occur through two distinct processes: an attention driven baseline shift in the alpha waves, and a decision bias reflected in gamma waves.

Such was a major event in the history of Maverick's – for reputable Hawaiian big-wave riders to travel to the U. S. mainland to sample the waves of this little-known big wave riding beach.

Such waves were said to consist of an almost vertical wall of water preceded by a trough so deep that it was referred to as a " hole in the sea "; a ship encountering a wave of such magnitude would be unlikely to survive the tremendous pressures exerted by the weight of the breaking water, and would almost certainly be sunk in a matter of minutes.

Such waves are distinct from tides, caused by the Moon and Sun's gravitational pull, tsunamis that are caused by underwater earthquakes or landslides, and waves generated by underwater explosions or the fall of meteorites — all having far longer wavelengths than wind waves.