Results 81 to 90 of about 5,994,596 (302)

Research on Heat and Mass Transfer Performance of Copper Foam Condensation Dehumidification Core for Space Station

open access: yesZhileng xuebao
To address the demands for high-efficiency heat transfer and compact lightweight design in space stations, a high-efficiency condensation dehumidification system utilizing copper foam and driven by a Stirling refrigerator was developed.
周汉涛, 张良, 李昊玥, 方启
doaj  

Wafer‐Scale Direct Growth of Ultraclean Monolayer Amorphous Carbon on c‐Sapphire by Remote Catalytic Dehydrogenation

open access: yesAdvanced Materials, EarlyView.
Remote catalytic dehydrogenation enables the direct growth of monolayer amorphous carbon on a 2‐inch sapphire wafer by thermal CVD. Spatial separation of the catalyst from the growth substrate eliminates metallic residue and post‐growth processing, yielding a wafer‐scale uniform film with a random polygonal sp2‐hybridized carbon network that exhibits ...
Muhammad Sabbtain Abbas   +8 more
wiley   +1 more source

[News Clip: Space monkeys]

open access: yes, 1960
Video footage from the WBAP-TV television station in Fort Worth, Texas, to accompany a news story about one of five monkeys that was sent to space.
WBAP-TV (Television station : Fort Worth, Tex.)
core   +1 more source

Canadian Space Station program [PDF]

open access: yes, 1991
Information on the Canadian Space Station Program is given in viewgraph form. Topics covered include the Mobile Servicing Center (MSC), Space Station Freedom assembly milestones, the MB-3 launch configuration, a new workstation configuration, strategic ...
Doetsch, K. H.
core  

Ferroionic‐Assisted, Charge‐Driven Polymorphic Phase Engineering for Multilevel Memristive Devices

open access: yesAdvanced Materials, EarlyView.
A CuInP2S6/Mo0.92W0.08Te2 heterostructure enables a gradual semiconductor‐to‐semimetal phase transition through Cu+ ion migration and charge accumulation. The spatially engineered 2H/1T′ mixed phases produce continuously tunable conductance states in a two‐terminal geometry, while suppressing depolarizing fields and stabilizing the metastable 1T′ phase.
Nayeon Kim   +9 more
wiley   +1 more source

Rocket-induced lower ionosphere disturbances derived from measurements of very low frequency transmitter signals

open access: yesEarth and Planetary Physics
A rocket launch can induce large-scale atmospheric disturbances, which have mainly been investigated in previous studies by using measurements of total electron content.
JingYuan Feng   +9 more
doaj   +1 more source

Erectable modular space station Patent [PDF]

open access: yes, 1965
Manned space station collapsible for launching and self-erectable in ...
Berglund, R. A.
core  

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Inventory of NASA-Japanese Space Agency Documents [PDF]

open access: yes, 2000
These documents are created under terms of the Memorandum of Understanding signed by the U.S.

core   +1 more source

Space radiation risks for astronauts on multiple International Space Station missions.

open access: yesPLoS ONE, 2014
Mortality and morbidity risks from space radiation exposure are an important concern for astronauts participating in International Space Station (ISS) missions. NASA's radiation limits set a 3% cancer fatality probability as the upper bound of acceptable
Francis A Cucinotta
doaj   +1 more source

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