Fluorescence light sources

Vezenov, D. B. Mayers, B. T. Wolfe, D. B. Whitesides, G. M., Integrated fluorescent light source for optofluidic applications, Appl. Phys. Lett. 2005, 86, 041104... 

Osborn [13] reported work on 25 im (1 mil) thick oriented PET film exposed either to a carbon arc or to fluorescent light sources using inherent viscosity measurements to track the degradation and related them to the number-average... 

Exposure to a fluorescence light source Westinghouse, 20W F20T12/CW, 800 foot candles for 9 days. 

Placebo and drug product will be photolytically stressed by placing it in a thermostated light chamber at 25°C and subjecting the samples to a UYA light source of not less than 200 watt h/meter and a fluorescent light source of not less than 1.2 million lux h. 

Place the gel tubes in close proximity to a strong fluorescent light source (within 2-5 cm). Allow the gels to polymerize until the upper gel becomes opalescent. 

Fluorescent - light source which uses gas as an element... 

When the computer system arrives, the shipment should be checked by the user for completeness. It should be confirmed that the equipment ordered is what was in fact received. Besides the equipment hardware, other items should be checked, for example correct cables, other accessories and documentation. A visual inspection of the entire hardware should follow to detect any physical damage. For more complex instrumentation, for example, when multiple computers are connected to a network, wiring diagrams should be produced, if not supplied by the vendor. Distance between the computers and peripherals such as printers and analytical equipment must be within manufacturer s specifications. For example, long low-voltage electrical lines from analytical equipment to computers are vulnerable to electromagnetic interference. This may result in inaccurate input data to the computer. In addition, electrical lines should be shielded if motors or fluorescent light sources are nearby. At the end of the installation of the hardware an electrical test of all computer modules and systems should follow. 

Figure 2.3 Spectral power distribution of daylight and white fluorescent light sources. (Redrawn from Thorington, L., Ann. N. Y. Acad. Sci., 453 28-54,1985.)...

Other tests, such as the respirator qualitative/quantitative fit test method, refer to a Bureau of Mines technique of blowing a stream of talcum powder or coal du.st directly around the face to facepiece seal. The user then would remove the respirator and the leakage would be revealed by telltale streaks of the dust or powder. This method is rarely used. Uranine (a fluorescein dye) can also be sprayed around the respirator sealing surface and, when removed, the leaka was detected by a fluorescent light source. 

The intermediate color-rendering properties of most fluorescent light sources are closer to the best than to the worst. Mercury vapor and high-pressure sodium sources, widely used for street lighting, have poor color-rendering properties that fall between those of fluorescent and low-pressure sodium illumination. 

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