Results 201 to 210 of about 198,219 (355)

Catastrophic events, contagion, and stock market efficiency: the case of the space shuttle challenger

open access: bronze, 1996
Laurence E. Blose   +4 more
openalex   +1 more source

Optical shutter switching matrix [PDF]

open access: yes
The interface switching systems are discussed which are related to those used in the Space Shuttle ground control system, transmission systems, communications systems, and airborne radar electronic countermeasure systems.
Grove, Charles H.
core   +1 more source

Fabrication of Composite Cathode for All‐Solid‐State Sodium Batteries

open access: yesAdvanced Energy Materials, EarlyView.
The design of composite cathodes for all‐solid‐state sodium batteries must address three critical challenges—interfacial side reactions, interfacial delamination, and highly tortuous transport pathways. This work outlines structural and interfacial strategies to optimize ion transport and mechanical stability, enabling durable, and high‐performance ...
Gaoming Sun   +6 more
wiley   +1 more source

Space Shuttle Orbiter payload bay door mechanisms [PDF]

open access: yes
The opening, closing, and latching of the first large clamshell door to operate in space presented some unusual challenges for the mechanism designer of the Space Shuttle Program.
Mcanally, B. M.
core   +1 more source

Unraveling Asymmetric Macroscopic Reaction Dynamics in Solid‐State Li–S Batteries During Charge–Discharge Cycles: Visualizing Ionic Transport Limitations with Operando X‐Ray Computed Tomography

open access: yesAdvanced Energy Materials, EarlyView.
Operando X‐ray computed tomography visualizes evolving through‐thickness sulfur‐lithiation distribution in solid‐state Li–S battery (SSLSB) cathodes during charge‐discharge cycles. These observations reveal that macroscopic ionic transport severely limits the rate capability, and charging exhibits significantly more pronounced reaction heterogeneity ...
Yuta Kimura   +11 more
wiley   +1 more source

A modular, adaptable, and accessible implant kit for chronic electrophysiological recordings in rats. [PDF]

open access: yesCell Rep Methods
Ibáñez Alcalá RJ   +15 more
europepmc   +1 more source

Harnessing γ‐Valerolactone: Green and Low‐Toxic Solvent for Enhanced Dye‐Sensitized Solar Cells Performance Under Indoor Lighting

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This research explores the use of γ‐valerolactone (γ‐VL), a sustainable and low‐toxic solvent, as an alternative for dye‐sensitized solar cell electrolytes. Results indicate that while γ‐VL is less suitable for outdoor applications, it significantly outperforms traditional solvents like acetonitrile and 3‐methoxypropionitrile under indoor lighting ...
Roberto Speranza   +4 more
wiley   +1 more source

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