Results 91 to 100 of about 224,765 (300)

Dissociating the effects of oxygen pressure and content on the control of breathing and acute hypoxic response

open access: yes, 2019
Arterial oxygen tension and oxyhemoglobin saturation (SaO2 ) decrease in parallel during hypoxia. Distinguishing between changes in oxygen tension and oxygen content as the relevant physiological stimulus for cardiorespiratory alterations remains ...
Roy, TK   +12 more
core   +1 more source

Clinical characterization of 39 patients with autoimmune pulmonary alveolar proteinosis

open access: yesJournal of International Medical Research
Objectives We aimed to explore the clinical manifestations, examination findings, diagnostic methods, and treatment efficacy of patients with pulmonary alveolar proteinosis and improve clinicians' understanding of this disease. Methods We retrospectively
Yan-Fen Zhong, Xiao Lv
doaj   +1 more source

Origin of oxygen partial pressure-dependent conductivity in SrTiO3

open access: yesApplied Physics Letters
SrTiO3 (STO) displays a broad spectrum of physical properties, including superconductivity, ferroelectricity, and photoconductivity, making it a standout semiconductor material. Despite extensive research, the oxygen partial pressure-dependent conductivity in STO has remained elusive.
Zenghua Cai, Chunlan Ma
openaire   +2 more sources

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

Memo on Oxygen Partial Pressure Monitoring 1967

open access: yes, 1967
A memorandum from George Low, Manager of the Apollo Spacecraft Program, regarding Oxygen Partial Pressure ...
Low, George
core  

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

open access: yesAdvanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov   +4 more
wiley   +1 more source

Oxygen-Partial-Pressure Sensor for Aircraft Oxygen Mask

open access: yes, 2003
A device that generates an alarm when the partial pressure of oxygen decreases to less than a preset level has been developed to help prevent hypoxia in a pilot or other crewmember of a military or other high-performance aircraft.
Kelly, Mark, Pettit, Donald
core  

Consumed by Abdominal Distention

open access: yes
Arthritis Care &Research, EarlyView.
Abimbola Fadairo‐Azinge   +3 more
wiley   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

open access: yesAdvanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies   +2 more
wiley   +1 more source

Thin film devices used as oxygen partial pressure sensors

open access: yes, 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
Wortman, J. J., Canady, K. S.
core  

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