Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"switching valves"”.
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CATCHMENT SCALE MONITORING AND MODELLING OF PHOSPHORUS USING FLOW INJECTION ANALYSIS AND AN EXPORT COEFFICIENT MODEL
… monitor, incorporating solenoid micropumps and switching valves, a miniature CCD spectrometer, a graphical programming environment and a tangential flow filtration unit, achieved a detection limit of 0.67 pM and was able to monitor at high temporal resolution (every 30 min). Chapter Five …
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Achieving Efficient Control of Hydraulic Systems Using On/Off Valves
… typical method of control, which uses throttling valves to place restrictions in the flow path to dissipate excess power as heat. Several approaches to reducing throttling losses have been studied, such as using pumps, motors, or transformers to control individual actuators, or creating circuits …
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Self-energizing electro-hydraulic brake
… for the brake performance. Different automotive valves such as from antilock brake systems (ABS) or electronic stabilization programs (ESP) are applied using electronic power switches and current drivers. The brake test stand and two successive prototypes are outlined at the end of this thesis. …