Results 71 to 80 of about 861,516 (296)

STS-39 Space Shuttle mission report [PDF]

open access: yes
The STS-39 Space Shuttle Program Mission Report contains a summary of the vehicle subsystem operations during the fortieth flight of the Space Shuttle and the twelfth flight of the Orbiter Vehicle Discovery (OV-103). In addition to the Discovery vehicle,
Fricke, Robert W.
core   +1 more source

Aerodynamic protection for space flight vehicles Patent [PDF]

open access: yes, 1967
Development and characteristics of protective coatings for ...
Parmley, R. T.
core   +1 more source

Temperature‐Robust Interphase Enables Carboxylate‐Ester Electrolyte for Stabilizing High‐Voltage Sodium Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A synergistic electrolyte engineering strategy of employing ethyl acetate (EA) with vinylene carbonate (VC) as multifunctional additives is initially pioneered, making various as‐prepared high‐voltage wide‐temperature sodium batteries work well via the formation of a gradient and temperature‐robust interphase.
Huihua Li   +6 more
wiley   +1 more source

History of Manned Space Flight [PDF]

open access: yes
U.S. manned space projects from Mercury Redstone 3 through Skylab 4 are briefly described including dates, flight duration, crew, and number of earth/moon orbits. The flight costs of each project are itemized.

core   +1 more source

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong   +6 more
wiley   +1 more source

Manned space flight in transition [PDF]

open access: yes
A study was conducted to analyze the reorientation of NASA programs in the post-Apollo period. The study is an external view of NASA by unbiased observers as an input to and aid in the decision making process concerning near and long term planning.
Drucker, E. E.   +3 more
core   +1 more source

Revealing the Hidden Role of Cd in p‐Type Mg3Sb2: Enhanced Thermoelectric Performance by Grain Boundary Segregation Engineering

open access: yesAdvanced Functional Materials, EarlyView.
The hidden role of Cd segregation at grain boundaries is revealed in p‐type Mg3Sb2 by atom probe tomography and other advanced characterizations. Grain boundary Cd enrichment suppresses the SbMg+ hole‐killer formation and lowers potential barriers, enhancing electrical conductivity.
Zhou Li   +12 more
wiley   +1 more source

Abrupt reduction in shipping emission as an inadvertent geoengineering termination shock produces substantial radiative warming

open access: yesCommunications Earth & Environment
Human activities affect the Earth’s climate through modifying the composition of the atmosphere, which then creates radiative forcing that drives climate change.
Tianle Yuan   +10 more
doaj   +1 more source

Regional Impacts of Urbanization in the United States

open access: yesCanadian Journal of Remote Sensing, 2017
We simulate the impact of impervious surface areas (ISA) on the U.S. local and regional climate. At a local scale, we find the urban area warmer than the surrounding vegetation in most cities, except in arid climate cities where urban temperature is ...
Lahouari Bounoua   +4 more
doaj   +1 more source

Analysis of Eddy Current Generation on the Juno Spacecraft in Jupiter's Magnetosphere

open access: yesEarth and Space Science, 2020
The Juno mission to Jupiter, in polar orbit around the gas giant since 4 July 2016, samples the planet's environment with dedicated particle and fields instruments.
S. Kotsiaros   +2 more
doaj   +1 more source

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