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Hyuganatsu (Citrus tamurana, Japanese: 日向夏) is a citrus fruit and plant grown in Japan. The name comes from Hyūga , the ancient name of Miyazaki Prefecture in Kyushu , where the citrus is said to have originated, while "natsu" ( 夏 ) means summer.
Noise levels can be reduced by installing noise barriers next to the track. [2] Traditional clickety-clack sounds occur as a result of gaps in the rail to allow for thermal expansion. On most railways, the gaps are opposite each other and if the carriages are about the same length as the rails, an even clickety clack sound is generated.
Like the Hyuganatsu, the white pith (albedo) may be eaten. [ 4 ] The rind's cold-pressed oil has been studied for fragrance factors, and was found to contain limonene (roughly 80%), followed by the monoterpene Gamma-terpinene (10%), trans beta- farnesene , and myrcene , [ 7 ] showing similarity to Hyuganatsu's peel profile, though with ...
Road traffic occurs more often during the daytime, while train traffic can be higher in nighttime. [14] Trains cause more vibrations due to their weight and the interaction between tracks and wheels. There is a large proportion of electrical trains, leading to lower emissions near tracks than gas vehicles on roads. [14]
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. This is a list of onomatopoeias, i.e. words that imitate, resemble, or suggest the source of the sound that they describe. For more information, see the linked articles. Human vocal sounds Achoo, Atishoo, the sound of a sneeze Ahem, a sound made to clear the throat or to draw attention ...
The correlation of these measurements indicates how much track-born noise is propagating through the ballast into the bedrock strata. This correlates directly with the noise levels experienced by surrounding area. Ground based noise systems are commonly installed near or inside tunnels.
Green track (also grassed track or lawn track) is a type of railway track in which the track bed and surrounding area are planted with grass turf or other vegetation as ground cover. [1] It is a popular way of making railways more visually appealing, [ 1 ] [ 2 ] : 10 particularly for trams and light rail , and providing additional urban green ...
A railway track (CwthE and UIC terminology) or railroad track (NAmE), also known as permanent way (CwthE) [1] or "P Way" (BrE [2] and Indian English), is the structure on a railway or railroad consisting of the rails, fasteners, sleepers (railroad ties in American English) and ballast (or slab track), plus the underlying subgrade.