Mr. Mead made an equally strong impression with his luminous voice, impeccable control and expressive phrasing.
Besides increasing the luminous efficiency, effectively controlling electricity and thermal characteristics in the design of light-emitting diode lighting products is the key point to achieve the demand of light and color.
The quantitative test-reaction parameter assessment is expressed as a toxicity index T which is a nondimensional quantity determined from the formula T = 100(I o − I)/ I o, where I o and I are luminous intensities of the control and tested samples accordingly, while the exposition time of the examined sample with the test-object is fixed.
English theologian Richard Holt Hutton summarized the poem as Tennyson's "friendly picture of the insatiable craving for new experience, enterprise, and adventure, when under the control of a luminous reason and a self-controlled will".
{text{IHR}} = left( {{text{L}}_{text{CK}} - {text{Ls}}} right)/{text{L}}_{text{CK}} times 100%LCK is the luminous intensity of the negative control and Ls is the luminous intensity of the sample or positive control (HgCl2).
High expression in Escherichia coli of the lux system cistron of a luminous bacteria under its own control has been accomplished only for the Vibrio fischeri lux system at high cell density.
Murray Perahia's trademarks – the luminous pearly tone, the enviable control in quiet passages, the clear shape and balance of his interpretations – were all there in the D major Sonata by Haydn with which he began this Barbican recital, and in much of his playing throughout the evening.
However, the authors of these extremely interesting experiments correctly discuss two important limitations: "First, the production of the luminous balls is not under complete control.
Using a luminance-meter (measure of the luminous intensity of light travelling in a given direction) we controlled the light level emitted by the monitor in the portion of the image containing the refracted light spot.
The bacteria-filled organ is continuously luminous, but the light can be controlled either by melanophores scattered over the surface of the organ or by a black membrane that may be mechanically drawn over the organ.
