Results 141 to 150 of about 16,235 (210)
In Situ Raman Spectroscopy of a Silica Gel‐Templated Hydration Pathway in CO2‐Activated Cement
Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.ABSTRACT This study investigates early‐age carbonate mineralization in cementitious systems using in situ Raman microspectroscopy. In the presence of dissolved CO2, clinker phases undergo accelerated dissolution, decomposing to form various calcium carbonate polymorphs and a transient amorphous silica gel network.
Marcin Hajduczek +6 more
wiley +1 more source
Alternative Refrigerants in Adiabatic Capillary Tubes [PDF]
, 1996 This study examines the mass flow rate of refrigerants in adiabatic capillary tubes, with an emphasis on the nature of the metastable region for both single component refrigerants and mixtures. The metastable region of a capillary tube was found to be
Dunn, W.E., Meyer, J.J.
core
Apollo experience report: Lunar module environmental control subsystem [PDF]
A functional description of the environmental control subsystem is presented. Development, tests, checkout, and flight experiences of the subsystem are discussed; and the design fabrication, and operational difficulties associated with the various ...
Brady, J. C., Collier, F., Gillen, R. J.
core +1 more source
Challenges in the development of the shuttle extravehicular mobility unit [PDF]
The development of the Shuttle extravehicular mobility unit (EMU) has required significant technology advances in the design of the astronaut life support system and space-suit assembly.
Mcbarron, J. W., II, Mcmann, H. J.
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A review of the influence of physical condition parameters on a typical aerospace stress effect: Decompression sickness [PDF]
The study examines data on episodes of decompression sickness, particularly from recent Navy work in which the event occurred under multiple stress conditions, to determine the extent to which decompression sickness might be predicted on the basis of ...
Parker, J. F., Jr., West, V. R.
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Apollo portable life support system performance report [PDF]
The performance of the Apollo portable life support system (PLSS) on actual lunar missions is discussed. Both subjective comments by the crewmen and recorded telemetry data are evaluated although emphasis is on the telemetry data.
Carson, M. A.
core +1 more source
Research on radiation detectors, boiling transients, and organic lubricants [PDF]
The accomplishments of a space projects research facility are presented. The subjects discussed are: (1) a study of radiation resistant semiconductor devices, (2) synthesis of high temperature organic lubricants, (3) departure from phase equilibrium ...
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Development of a static feed water electrolysis system [PDF]
A one person level oxygen generation subsystem was developed and production of the one person oxygen metabolic requirements, 0.82 kg, per day was demonstrated without the need for condenser/separators or electrolyte pumps.
Hallick, T. M. +2 more
core +1 more source
Use of a metal 3D printed and instrumented dilatometer [PDF]
, 2017 Haegeman, Wim +2 more
core +1 more source