Ultraviolet Light David J.Elliott, inUltraviolet Laser Technology and Applications, 1995 1.2The Ultraviolet Spectrum The “ultraviolet” is a small portion of the electromagnetic spectrum, yet within its boundaries there are three distinct regions (near, mid, and far UV), each with particular signifi...
A. (1971).Efficient mutagenesis by near ultraviolet light in the presence of 8-methoxypsoralen in Streptomyces. Journal of Applied Bacteriology 34, 799-Townsend ME, Wright HM, Hopwood DA. Efficient mutagenesis by near ultraviolet light in the presence of 8-methoxypsoralen in streptomyces. J Appl ...
ME Simmons,XB Wu,SG Whisenant - 《Restoration Ecology》 被引量: 54发表: 2011年 Interactions between fungi colonising hardwood stumps and their possible rôle in determining patterns of colonisation and succession Topographic position had little effect on survival of pioneer species, but mortality of...
Ultraviolet (UV) light falls in the range of the EM spectrum between visible light and X-rays. It has frequencies of about 8 × 1014to 3 × 1016cycles per second, or hertz (Hz), and wavelengths of about 380 nanometers (1.5 × 10−5inches) to about 10 nm (4 × 10−7inches)....
clear that distinguishing the colors and learning which signaled food posed no problem for the humming birds.“Even though we expected birds to tell these colors apart, seeing them do it with my own eyes was really amazing, because these LWO color light tubes look exactly the same to me," ...
(a) Light output power as a function of the mesa perimeter length for various mA epaanrainmgettheersA(Ap a=ra ImTMe/tIeTrEi)n. Acrseathseese.mThisastioisn, wavelength decreases, TM-polarized light becomes more light can be extracted for a large A-parameter dominant, condition. ...
Postmitochondrial supernatant, , and microsomes were exposed to near-ultraviolet light and assayed for incorporation of (3H)leucine. The results indicate that near-ultraviolet light decreased the incorporation of radioactivity into the aminoacyl-tRNA fraction and into . This effect depended on the wavele...
In one case a light source of fixed energy, usually He(I), is used together with a dispersive electron energy analyzer. Two modes of operation of this experimental setup are feasible: (i) the mass spectrum is scanned at a fixed electron energy, or (ii) a particular ion is chosen and ...
aamounts large enough to produce greenhouse warming and perhaps a[translate] atropical or even hotter climate. Because of the near absence of free[translate] asupply, so the Earth's surface was bathed in ultraviolet (UV) light[translate]...
Mars' atmosphere doesn't protect Mars from the ultraviolet light from the Sun, but the Earth's atmosphere does a good job of protecting the Earth. Does that mean that the surface of Mars is brighter in ultraviolet light than the surface (including the oceans) of the Earth?