Results 41 to 50 of about 678,149 (297)

Growth of Oxide Compounds under Dynamic Atmosphere Composition

, 2008
Commercially available gases contain residual impurities leading to a background oxygen partial pressure of typically several 10^{-6} bar, independent of temperature.
Atkins, Barin, Berkowski, D. Klimm, D. Schulz, DiGiuseppe, Ganschow, Hrostowski, Kehl, Klimm, Klimm, Klimm, Klimm, Mateika, P. Reiche, Pajaczkowska, Pajaczkowska, R. Bertram, R. Fornari, R. Uecker, S. Ganschow, Sakowska, Sanchez, Schulz, Schulz, Takeda, Tomm, Uecker   +27 more
core   +1 more source

Ionic conductivity of perovskite LaCoO3 measured by oxygen permeation technique [PDF]

, 1997
Oxygen permeation measurement is demonstrated, not only for a mixed oxide ionic and electronic conductor, but also as a new alternative to determine ambipolar conductivities, which can be usually reduced to be partial conductivities (either ionic or ...
Bouwmeester, H.J.M., Burggraaf, A.J., Chen, C.H., Kruidhof, H.   +3 more
core   +3 more sources

Real-time quantitative analysis of volatile products generated during solid-state polypropylene thermal oxidation [PDF]

, 2013
Analysis of volatile organic compounds (VOCs) during PP thermal oxidation under three oxygen partial pressures (0%, 21% and 100% of atmospheric pressure) at 140 C was performed by proton transfer reaction coupled with Fourier transform ion cyclotron ...
COLIN, Xavier, DESNOUX, Eric, FRANCOIS-HEUDE, Alexandre, HENINGER, Michel, LEPROVOST, Julien, MESTDAGH, Helene, RICHAUD, Emmanuel   +6 more
core   +4 more sources

Oxygen partial pressure control for microgravity experiments [PDF]

Solid State Ionics, 2012
Abstract A system consisting of a high-temperature yttrium-stabilized zirconia (YSZ) based oxygen ion pump and potentiometric sensor enables precise measurement and control of oxygen partial pressure, pO2, at elevated temperatures within 0.2 to 10− 20 bar.
Schulz, Michael, Brillo, Jürgen, Stenzel, Christian, Fritze, Holger   +3 more
openaire   +2 more sources

Mechanical Ventilation in Neonatal Respiratory Distress Syndrome at High Altitude: A Retrospective Study From Tibet

Frontiers in Pediatrics, 2019
Objective: To explore the characteristics of mechanical ventilation parameters and the arterial partial pressure of oxygen in neonatal respiratory distress syndrome (RDS) at high altitude.Methods: From the 1st May 2017 to the 31st December 2018, we ...
Dan Chen, Xiuxiu Liu, Jiujun Li
doaj   +1 more source

High temperature oxidation of a Cu-Ni – based cermet: kinetic and microstructural study [PDF]

, 2005
International audienceThe oxidation of a cermet composed of nickel ferrite (NixFe3-xO4), nickel oxide (NiyFe1-yO) and Ni-Cu alloy (CuzNi1-z) (with x=0.8, y=0.84 and z=0.44) has been studied by thermogravimetry, at 960°C, under controlled oxygen partial ...
Pijolat, Michèle, Prin-Lamaze, Marie-Agnès, Rioult, Fabien, Valdivieso, Françoise   +3 more
core   +4 more sources

Influence of an Oxygen-Free Atmosphere on Process Forces and Workpiece Quality during the Surface Grinding of Ti-6Al-4V

Lubricants, 2023
Most manufacturing processes, such as grinding, are usually conducted in a standard air atmosphere. The oxygen within this atmosphere leads to oxidation effects on tools and workpieces when machining metal components.
Berend Denkena, Benjamin Bergmann, Nils Hansen, Roman Lang   +3 more
doaj   +1 more source

Thin film devices used as oxygen partial pressure sensors [PDF]

, 1970
Electrical conductivity of zinc oxide films to be used in an oxygen partial pressure sensor is measured as a function of temperature, oxygen partial pressure, and other atmospheric constituents. Time response following partial pressure changes is studied
Canady, K. S., Wortman, J. J.
core   +1 more source

Study program to develop and evaluate die and container materials for the growth of silicon ribbons [PDF]

, 1979
The development and evaluation of proprietary coatings of pure silicon carbide, silicon nitride, and aluminum nitride on less pure hot pressed substrates of the respective ceramic materials, is described.
Addington, L. A., Barsoum, M. W., Ownby, P. D., Romero, H. V., Yu, B. B., Zealer, B. G.   +5 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source