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Characterization and modeling of thermo-mechanical fatigue crack growth in a single crystal superalloy

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Turbine engine blades are subjected to extreme conditions characterized by significant and simultaneous excursions in both stress and temperature. These conditions promote thermo-mechanical fatigue (TMF) crack growth which can significantly reduce component design life beyond that which would be predicted from isothermal/constant load amplitude results. A thorough understanding of the thermo-mechanical fatigue crack behavior in […]

Oxygen Monitor for Quantum Computer Helium Laboratory

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Model O2iM – Oxygen Deficiency Safety Monitor: The Oxigraf state of the art Oxygen Deficiency Monitor, the Model O2iM, is a fast response, accurate and reliable safety monitor for oxygen displacement monitoring in Quantum Computer Laboratory, MRI, NMR, and liquid nitrogen and helium storage facilities. Our reliable solid state sensor does not require routine maintenance […]

NASA Astronauts Launch from America in Historic Test Flight of SpaceX Crew Dragon

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For the first time in history, NASA astronauts have launched from American soil in a commercially built and operated American crew spacecraft on its way to the International Space Station. The SpaceX Crew Dragon spacecraft carrying NASA astronauts Robert Behnken and Douglas Hurley lifted off at 3:22 p.m. EDT Saturday on the company’s Falcon 9 rocket from Launch Complex 39A […]

O2MIX Oxygen-CO2 Mixer

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Fast Gas Mixer Overlay and Sparge Gas Controller for Bioreactors The Model O2MIX gas mixer measures the oxygen and CO2 concentration in a gas sample inside instrument and uses this as feedback to control three (3) proportional valves to blend gasses from the three (3) inputs to a single output. The product uses feedback from […]

A Device for the Quantification of Oxygen Consumption and Caloric Expenditure in the Neonatal Range

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BACKGROUND: The accurate measurement of oxygen consumption (VO2) and energy expenditure (EE) may be helpful to optimize the treatment of critically ill patients. However, current techniques are limited in their ability to accurately quantify these end points in infants due to a low VO2, low tidal volume, and rapid respiratory rate. This study describes and […]

World Health Day

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Today is World Health Day, and we want to say to every healthcare worker in the medical field who helps keep us healthy: Thank you for everything you do, you are loved and appreciated!