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Novel Method for Instantaneous, Quantitative Measurement of Molecular Mixing in Gaseous Flows
We describe a novel method for making instantaneous, quantitative, planar measurements of fluid mixed at the molecular level in gaseous flows. The method relies on the effective oxygen quenching of the phosphorescence of luminescent tracers, such as acetone and biacetyl. The tracer's fluorescence
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Circuit Breakers
. On ac, the impedance changes as an iron core moves into the coil. Hydraulic-magnetic breakers have a different ampere-turn ratio for ac than for dc; thus, they should be used on their respective types of current. This is also true of 400 and 60-Hz breakers. An instantaneous circuit breaker responds
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Occupational & Safety Health Standards
in the course of his or her assignments. Explosive means a chemical that causes a sudden, almost instantaneous release of pressure, gas, and heat when subjected to sudden shock, pressure, or high temperature. Flammable means a chemical that falls into one of the following categories: (i) Aerosol
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PAT in Perspective: Headcount and PAT Fact and Fiction
was instantaneous or a one-time event. I quickly pointed out that he may have the headcount moving in the wrong direction; PAT will likely add to QC headcount. (Apparently, the process workers weren t the only ones who were mistaken.) Now, exactly why will there be more bodies because of PAT and why
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Blend Controls Boost Liquid Chromatography Performance
is programmed so that blend is not released to the process until it meets preset specifications. The result is a programmable controller-based adaptive PAT system based on real-time feedback and adaptive control of the instantaneous composition of each blend as it is being created. Blend accuracy is assured
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2005 Saturn Ion Red Line
with an electronic signal for instantaneous throttle response. The aero-wing spoiler, a $380 option, divides the drivers field-of-vision out the back in two, a distracting sort of split screen. Some more peeves: Several times I stalled the car releasing the clutch in first gear. My regular ride
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Liquid Mixing: Solid Challenges
pockets in liquids. During this process, known as cavitation, tiny, highly energetic bubbles implode, causing a nearly infinite number of tiny shock waves within the fluid. Instantaneous temperatures reach the 5,000 K range, which can be exploited for chemical catalysis. Thanks to cooling rates
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UV-Cure Adhesives 101
adhesives absorb radiant energy from a UV light source and convert it to chemical energy so quickly that curing is practically instantaneous. So quick, in fact, that substrates experience only a brief, superficial temperature change. This lets companies use UV adhesives on heat-sensitive materials including