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Showing 1 to 11 of 11 for “"skimmer"”.
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Evaluating the Effectiveness of the Skimmer Versus the Perforated Riser in Sedimentation Basins
… However, a relatively new outlet device, the skimmer, has been developed, which dewaters the basin from the water surface. A laboratory study was conducted to compare the skimmer with the perforated riser for three different soil types and determine if there were any significant differences in …
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Calibration, optimization, and deployment of PTR-MS instruments during the AIRMAP project
… chamber. The PTR-MS uses a differentially pumped skimmer to prevent excess water from the ion source from entering the drift tube reaction chamber. By placing a metering valve in between the skimmer region and the pump, it was possible to control the amount of water entering the drift tube. The …
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FUNDAMENTAL AND APPLIED MEASUREMENTS IN ICP-MS
… from the plasma and those sampled from the skimmer cone were determined using a modified lens stack to assess the significance for memory effects of material deposited on the skimmer cone. The most probable kinetic energy of Be* ions sampled from the skimmer cone was found to be 2A eV, which …
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Ultrafast Dynamics and Interactions During Growth at Surfaces
… gas and (ii) atoms back-scattered from the skimmer and mount. We demonstrate that at room temperatures, the former dominates, suggesting that the design of the skimmer has an insignificant impact on room temperature beams. We derive a number of scaling relationships and analytic formulae …
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The Study of Positive-Ion Mass Spectrometry of 5-Fluorouracil Using Low-Energy Electron Impact
… beam enters the collision chamber through a skimmer where it is crossed with a pulsed electron beam. The electron beam has a pulse width of 0.5 ms providing good time-of-flight resolution. Positive ions produced by electron collisions with the molecules are extracted into a reflectron …
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"Sump-Inlet" deployment linkage design for sargassum ocean sequestration (SOS)
… the "sump-inlet" which operates much like an oil skimmer, controlling and enforcing a high solids concentration by locating a weir close to the free surface of the water. Once sargassum and seawater flows over the weir, into the sump, the sargassum is dragged downward toward suction piping, …
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Characterization of a novel methyl radical source and related thin film growth studies
… discharge/reaction products were sampled using a skimmer, and the resulting molecular beam was either characterized using a mass spectrometer or used in nucleation and growth experiments.;The characterization studies showed that a "clean" flux of CH3 radicals was produced for a 7.5% CH4 mixture, a …
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Study of Low Energy Electron-Impact Induced Ionization and Fragmentation of Uracil
… in the expansion chamber, passes through a skimmer and crossed with a pulsed beam of low energy electrons in the collision chamber. The electron gun has a pulse width of 1 μs providing the necessary time of flight resolution and incorporates a deflection system for the steering of the beam. …
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Design of a flexible containment system for deep ocean oil spills
… allows oil to separate from the water; a skimmer weir in the pen collects almost pure oil and pumps it to a tanker. An air can at the shroud top provides pre-tension that restrains lateral deflections due to a uniform current, and helps reduce the collapse due to the pressure differential. …