Results 91 to 100 of about 241,980 (309)
The effect of acceleration versus displacement methods on steady-state boundary forces [PDF]
This study describes the acceleration and displacement methods for use in the recovery of coupled system boundary forces. A simple two degree of freedom system has been used for illustration.
Mcghee, D. S.
core +1 more source
Modelling light-driven proton pumps in artificial photosynthetic reaction centers
, 2009 We study a model of a light-induced proton pump in artificial reaction centers. The model contains a molecular triad with four electron states (i.e., one donor state, two photosensitive group states, and one acceptor state) as well as a molecular shuttle
Ghosh, Pulak Kumar +2 more
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Advanced Science, EarlyView.This study identifies the HDAC6/GATA4/HtrA1 axis as a critical driver of cellular senescence in the inner ear. GATA4 nuclear translocation, facilitated by HDAC6 downregulation, transcriptionally activates HtrA1, promoting hair cell senescence, SASP, and audio‐vestibular dysfunction in models of Ménière's disease and age‐related audio‐vestibular ...
Na Zhang +16 more
wiley +1 more source
Debris/Ice/TPS Assessment and Photographic Analysis for Shuttle Mission STS-37 [PDF]
A Debris/Ice/TPS assessment and photographic analysis was conducted for Space Shuttle Mission STS-37. Debris inspections of the flight elements and launch pad were performed before and after launch. Ice/frost conditions on the External Tank were assessed
Davis, J. Bradley +2 more
core +6 more sources
Materials FuturesRechargeable zinc-iodine (ZnI _2 ) batteries have gained popularity within the realm of aqueous batteries due to their inherent advantages, including natural abundance, intrinsic safety, and high theoretical capacity. However, challenges persist in their
Yongxin Huang +11 more
doaj +1 more source
A Review of the Application of Modified Separators in Inhibiting the "shuttle effect" of Lithium-Sulfur Batteries. [PDF]
Membranes (Basel), 2022 Zhang BW +7 more
europepmc +1 more source
Observations of thermal ion influxes about the space shuttle [PDF]
Ion mass spectrometer measurements made as part of the University of Iowa's Plasma Diagnostic Package on the STS-3 and Spacelab 2 Space Shuttle missions sampled a variety of ion composition and collected ion current responses to gas emissions from the ...
Grebowsky, Joe M., Schaefer, A.
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The Doubly Labeled Water Method for Measuring Human Energy Expenditure: Adaptations for Spaceflight [PDF]
, 1991 It is essential to determine human energy requirements in space, and the doubly labeled water method has been identified as the most appropriate means of indirect calorimetry to meet this need.
Schulz, Leslie O.
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Material‐Induced Nuclear Deformation Controls Chromatin Architecture in Adipose Stem Cells
Advanced Science, EarlyView.Tuning cell and cytoskeleton mechanics modulated nuclear shape and heterochromatin organization in ASCs. Distinct cytoskeletal architectures induced nuclear morphologies from oblate to prolate ellipsoids. Large elongated cells with a structured actin cap exhibited high nuclear strain, driving nuclear envelope deformation and heterochromatin ...
Carlo F. Natale +6 more
wiley +1 more source
Piloting decision aid for spacecraft proximity operations [PDF]
The concept of a decision aid to assist the piloting of a powered vehicle during a near-field (less than 2000 feet) rendezvous to another spacecraft is discussed. Using Space Shuttle rendezvous with an orbiting satellite as an example, extensive practice
Pierce, Cole J.
core +1 more source