The standard centrifuge method has been frequently used to measure vulnerability to xylem cavitation. This method has recently been questioned. It was hypothesized that open vessels lead to exponential vulnerability curves, which were thought to be indicative of measurement artifact. We tested this hypothesis in stems of olive (Olea europea) because its long vessels were recently claimed to pro...

Aerosols composed of viable particles of a uniform size were produced with a commercial spinning-disc generator from aqueous suspensions of Bacillus subtilis var. niger spores containing various amounts of an inert material, dextran, to regulate aerosol particle size. Aerosols composed of single naked spores having an equivalent spherical diameter of 0.87 mum were produced from spore suspension...

Copyright is held by the author. Golan Levin’s Interactive Art and Computational Design class. Spring 2012, Carnegie Mellon University. Abstract We present “Gesture of In-Kindness,” an interactive art project comprising four household devices that respond in-kind to observers’ gestures. These devices include a fan that blows air at the observer only when the observer is actively blowing his or ...

Sir, Drs Greenough and Morley' conclude that very little ventilator pressure is transmitted to the oesophageal balloon in paralysed babies because of low lung compliance, and support this by showing lack of transmission to chest drains inserted in 2 babies with pneumothorax. Although this fits well with their other observations, they did not say whether there was any intrapleural air remaining ...

T O simulate the acceleration histories for boost and extreme emergency re-entries of an X-15 altitude mission, a centrifuge program was conducted during lhe months 04 March and April, 1957, by North American Aviation, and the U.S. Navy, in cooperation w i n the U.S. Air Force and the National Advisory Committee for Aeronautics. Its purpose was to provide in,formation regarding complex, oscilla...

Sirens evoke images of alarm, public service, war, and forthcoming air raid. Outside of the music of Edgard Varése ([8], [9]), sirens have rarely been framed as musical instruments. By connecting air hoses to spinning disks with evenly-spaced perforations, the siren timbre is translated musically. Polyphony gives our instrument an organ-like personality: keys are mapped to different frequencies...

We present a multisensor designed for industrial compressed air diagnostics and combining the measurement of pressure, flow, and temperature, integrated with the corresponding signal conditioning electronics in a single low-temperature co-fired ceramic (LTCC) package. The developed sensor may be soldered onto an integrated electro-fluidic platform by using standard surface mount device (SMD) te...

'Thus it is necessary to turn the core through a ninety degree arc only. This has been found to be of dec-ded advantage when the stop-cock is operated mechanically. A similar stop-cock with a bronze core has been made. The advantage of the steel core is the fact that it can be used in positions in which there is a possibility of its coming in contact with mercury. These stop-cocks are used in g...

This project focuses on the design, construction, and performance testing of a mechanical oil expeller press for extracting from various raw materials including coconut, mustard seed, sesame, groundnuts. The was also subject to structural analysis using simulation software ensure its safety efficiency. Unlike chemical centrifuge processes, which rely solvents or high-speed spinning extract oil,...