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Arai Helmet Limited (株式会社 アライヘルメット, Kabushiki-gaisha Arai Herumetto) is a Japanese company that designs and manufactures motorcycle helmets and other helmets for motorsports. The business has roots from the turn of the century involving cap production, followed by military headgear from 1930 onwards, industrial safety ...
1890s photochrom print of Neuschwanstein Castle, Bavaria, Germany. Photochrom, Fotochrom, Photochrome [Note 1] [2] or the Aäc process [citation needed] is a process of hand-colouring photographs from a single black-and-white negative with subsequent photographic transfer onto lithographic printing plates.
Sometimes, and particularly in the dye industry, the term irreversible photochromic is used to describe materials that undergo a permanent color change upon exposure to ultraviolet or visible light radiation. Because by definition photochromics are reversible, there is technically no such thing as an "irreversible photochromic"—this is loose ...
Arai Helmet (アライ), a Japanese motorcycle helmet manufacturer ARAI ( Automotive Research Association of India ), an R&D, Certification & Regulatory body in India. Organisations
ARAI established in 1966 is located at Pune, India, 150 km from Mumbai. It was incorporated as Industrial Research Organisation formed by the Indian Automotive Industry, affiliated to the Ministry of Heavy Industries, Government of India. [9] The Institute is registered as a Society under the Societies Registration Act XXI of 1860.
However, photochromic compounds are the necessary building blocks for light driven molecular motors and machines. [2] Upon irradiation with light, photoisomerization about double bonds in the molecule can lead to changes in the cis- or trans- configuration. [3] These photochromic molecules are being considered for a range of applications.
Photochromic compounds based on spiropyrans, spirooxazines, and [2H]chromenes are being investigated because of their silver-free light-sensitive properties that could be used for optical recording data, including thin films, photoswitches (sensors that discern light of certain wavelength), light filters with modulated transmission and ...
Arai Yoshimune (新井芳宗, 1863-1941) was a Japanese woodblock illustrator and print designer of the shin-hanga movement. [1] Much of his work was published by Hasegawa or Nishinomiya. [ 2 ]
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