extreme ultraviolet radiation euv or xuv or high-energy ultraviolet radiation is electromagnetic radiation in the part of the electromagnetic spectrum spanning wavelengths from 124 nm down to 10 nm, and therefore by the planck–einstein equation having photons with energies from 10 ev up to 124 ev corresponding to 124 nm to 10 nm respectively . euv is naturally generated by the solar .
epoxy coatings are often used in industrial and automotive applications since they are more heat resistant than latex-based and alkyd-based paints. epoxy paints tend to deteriorate, known as 'chalking out', due to uv exposure. polyester epoxies are used as powder coatings for washers, driers and other 'white goods'.
a dental curing light is a piece of dental equipment that is used for polymerization of light cure resin based composites. it can be used on several different dental materials that are curable by light. the light used falls under the visible blue light spectrum. this light is delivered over a range of wavelengths and varies for each type of device.
fibre-reinforced plastic frp also called fiber-reinforced polymer, or fiber-reinforced plastic is a composite material made of a polymer matrix reinforced with fibres. the fibres are usually glass in fibreglass , carbon in carbon fiber reinforced polymer , aramid, or basalt. rarely, other fibres such as paper, wood, or asbestos have been .
a performance surface is a flooring suitable for dance or sport. performance surfaces are normally laid on top of, or are part of, a sprung floor to produce a complete dance floor or sports floor.. dance performance surfaces made of sheet vinyl are also called dance floors and marley floors.they are called marley-type floors from a very popular reversible vinyl flooring manufactured for years .
in australia and new zealand, allnex is the leading producer and distributor of composite resins, flowcoats and gelcoats, and resin based in situ flooring systems for commercial and industrial sectors. energy curable resins. allnex is a leading producer of ultraviolet uv and electron beam eb energy-cured coating resins. radiation-cured .
microorganisms have less protection against uv, and cannot survive prolonged exposure to it. a uvgi system is designed to expose environments such as water tanks, sealed rooms and forced air systems to germicidal uv. exposure comes from germicidal lamps that emit germicidal uv at the correct wavelength, thus irradiating the environment. the forced flow of air or water through this environment ensures exposure.
floors may be stone, wood, bamboo, metal or any other material that can support the expected load. the levels of a building are often referred to as floors, although a more proper term is storey. floors typically consist of a subfloor for support and a floor covering used to give a good walking surface.
a bottlenose dolphin suffering from a severe sunburn appears to be on the mend, reports the daily mail.. the four-year-old animal sustained the damage several weeks ago when she washed ashore in .
the nitrogen gas laser uses electronic excitation of nitrogen molecules to emit a beam that is mostly uv. the strongest ultraviolet lines are at 337.1 nm and 357.6 nm, wavelength. another type of high power gas laser is the excimer laser. they are widely used lasers emitting in ultraviolet and vacuum ultraviolet wavelength ranges.
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structural engineering. in structural engineering, composite construction exists when two different materials are bound together so strongly that they act together as a single unit from a structural point of view. when this occurs, it is called composite action. one common example involves steel beams supporting concrete floor slabs. if the beam is not connected firmly to the slab, then the .
uv/vis spectroscopy is routinely used in analytical chemistry for the quantitative determination of different analytes, such as transition metal ions, highly conjugated organic compounds, and biological macromolecules.spectroscopic analysis is commonly carried out in solutions but solids and gases may also be studied.
irradiation can be used to cross-link plastics or to improve material qualities of semi-precious stones. due to its efficiency, electron beam processing is often used in the irradiation treatment of polymer-based products to improve their mechanical, thermal, and chemical properties, and often to add unique properties.
a performance surface is a flooring suitable for dance or sport. performance surfaces are normally laid on top of, or are part of, a sprung floor to produce a complete dance floor or sports floor. dance performance surfaces made of sheet vinyl are also called dance floors and marley floors. they are called marley-type floors from a very popular reversible vinyl flooring manufactured for years until about 1978 by marley floors theatres often have a number of roll-out floors with different ch
optical wireless communications owc is a form of optical communication in which unguided visible, infrared ir , or ultraviolet uv light is used to carry a signal.. owc systems operating in the visible band 390–750 nm are commonly referred to as visible light communication vlc . vlc systems take advantage of light emitting diodes leds which can be pulsed at very high speeds without .
recent interest in low toxicity timber for residential use, along with new regulations restricting some wood preservation agents, has resulted in a resurgence of the use of borate treated wood for floor beams and internal structural members.
gravel not only provides uv protection, it also helps accommodate sudden temperature changes thermal shock , protects the surface from hail and mechanical damage, and increases the weight of the roof system to resist wind blow-off. fabric; polyester. ptfe, synthetic fluoropolymer embedded in fibreglass. metal roofing.
radiation protection, also known as radiological protection, is defined by the international atomic energy agency iaea as 'the protection of people from harmful effects of exposure to ionizing radiation, and the means for achieving this'. exposure can be from a source of radiation external to the human body or due to internal irradiation caused by the ingestion of radioactive contamination.