Ví dụ về việc sử dụng Dipole trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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The most common antenna is the Dipole.
The strong permanent dipole traceable to a higher electronegativity of the nitrogen atom compared with a carbon atom.
For measurements between 1 and 4 GHz either a λ/2 dipole or a horn radiator may be used.
The season's activity was influenced by an ongoing El Niño,and a positive Indian Ocean Dipole.
When two conductors are involved, the resulting folded dipole is called 2-wire folded dipole.
Hale suggested that the sunspot cycle period is 22 years,covering two polar reversals of the solar magnetic dipole field.
This implies that helium-3 can overcome dipole- dipole interactions with less thermal energy than helium-4 can.
A dipole antenna or doublet is the simplest, usually the least expensive, and most widely used type of antenna in radio and telecommunications filed.
Global warming means that, like El Niño, the Indian Ocean dipole has become more extreme over recent years”.
The location of the heart dipole relative to the leads was chosen, for simplicity, to be at the center of the equilateral triangle.
But it may also be true that coldspells will become more persistent as dipole patterns intensify, a tendency that also seems to be occurring.
Omni-directional(Dipole) Antennas The dipole is an omni- directional antenna, because it radiates its energy equally in all directions around its axis.
We appear to be pulled towards a dense region called the Great Attractor,and pushed away from an emptier region called the Dipole Repeller.
The dipole radiates equally in all directions around its axis, but does not radiate along the length of the wire itself- hence the doughnut pattern.
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Three orthogonal pairs of dipole antennas were used for the electric fields experiments, and one of these pairs was also used for the radioastronomy experiment.
By using this radio station package,which includes 150W FM transmitter with a high gain FM Dipole antenna, it can broadcast about 15-25 kilometers distance in open environment.
Both weather events have been linked to higher-than-usual temperature differences between the two sides of the Indian Ocean-something meteorologists refer to as the Indian Ocean Dipole.
The result of this unusually strong positive dipole this year has been higher-than-average rainfall and floods in eastern Africa and droughts in south-east Asia and Australia.
In the course of time 10 transmitters of 100 kilowatts were installed,whereby as transmitting antennas enormous dipole arrays between free standing steel framework towers were installed.
If space were a vacuum, then the Sun's magnetic dipole field, about 10- 4 teslas at the surface of the Sun, would reduce with the inverse cube of the distance to about 10- 11 teslas.
Dr Robert Marchant, reader in tropical ecosystems at the University of York, UK,has made an extensive study of the dipole- first identified by a team of Japanese researchers in the late 1990s.
Regardless what it's called, this dipole pattern- abnormally high temperatures over much of the West along with chilly conditions in the East- has dominated North American weather in four of the past five winters.
This only works when a small, often-neglected correction proposed in 1888 by the physicist Wilhelm Röntgen(who won the 1901 Nobel Prize for the discovery of X-rays)is included to accommodate the interaction between the moving atom's electric dipole and a magnetic field.
The big questionis whether climate change will make dipole patterns- along with their attendant tendencies to produce extreme weather- more common in the future.
When an Indian Ocean dipole event occurs, the rainfall tends to move with the warm waters, so you get more rainfall than normal over the East African countries,” Dr Andrew Turner, a lecturer in monsoon systems at the UK's University of Reading, told the BBC.
Meteorologists are also blaming the freak weather on a little-knownclimate system called the Indian Ocean Dipole(IOD), which has caused a fall of sea-surface temperatures in the western Indian Ocean and created drier weather in Australia.
In Einthoven's electrocardiographic model the cardiac source is a two-dimensional dipole in a fixed location within a volume conductor that is either infinite and homogeneous or a homogeneous sphere with the dipole source at its center.
Experimental constraints on the currently unobserved neutron's electric dipole moment imply that CP violation arising from QCD must be extremely tiny and thus must itself be extremely small or absent.
Maleylacetoacetate isomerase requires the cofactor glutathione to function.[1] Ser 15, Cys 16, Gln 111,and the helix dipole of alpha 1 of the enzyme stabilize the thiolate form of glutathione which activates it to attack the alpha carbon of 4-maleylacetoacetate, thus breaking the double bond and allowing rotation around the single bond.