Results 131 to 140 of about 1,571,082 (390)
Evaluation of a Stirling engine heater bypass with the NASA Lewis nodal-analysis performance code [PDF]
In support of the U.S. Department of Energy's Stirling Engine Highway Vehicle Systems program, the NASA Lewis Research Center investigated whether bypassing the P-40 Stirling engine heater during regenerative cooling would improve engine performance. The
Sullivan, T. J.
core +1 more source
Effects of Cooling Temperatures via Thermal K2P Channels on Regeneration of High-Frequency Action Potentials at Nodes of Ranvier of Rat Aβ-Afferent Nerves [PDF]
, 2021 Hirosato Kanda +2 more
openalex +1 more source
Advanced Healthcare Materials, EarlyView.The PVA‐GA hydrogel is formed through hydrogen bonding between PVA hydroxyl groups and GA galloyl units, enabling sustainable GA release and its extended biological activity. The hydrogel scavenges ROS to reduce oxidative stress, preventing mitochondrial damage from excessive ROS, mitigating hADSC senescence, and preserving VEGF secretion, offering a ...
Yiduo Zhou +11 more
wiley +1 more source
Global design of analog cells using statistical optimization techniques [PDF]
, 1994 We present a methodology for automated sizing of analog cells using statistical optimization in a simulation based approach. This methodology enables us to design complex analog cells from scratch within reasonable CPU time. Three different specification
Domínguez Castro, Rafael +5 more
core +1 more source
Advanced Healthcare Materials, EarlyView.Exosomes can reduce tissue damage in temporomandibular joint osteoarthritis (TMJOA), but rapid clearance limits their efficacy. This study encapsulates exosomes in hyaluronic acid hydrogels for controlled release. In a rat model, hydrogel‐encapsulated exosomes outperform free exosomes in preserving bone integrity and reducing tissue destruction ...
Victor Diez‐Guardia +7 more
wiley +1 more source
Research requirements for development of regenerative engines for helicopters [PDF]
The improved specific fuel consumption of the regenerative engine was compared to a simple-cycle turboshaft engine. The performance improvement and fuel saving are obtained at the expense of increased engine weight, development and production costs, and ...
Semple, R. D.
core +1 more source
Modeling and Simulation of Regenerative Braking Energy in DC Electric Rail Systems [PDF]
arXiv, 2018 Regenerative braking energy is the energy produced by a train during deceleration. When a train decelerates, the motors act as generators and produce electricity. This energy can be fed back to the third rail and consumed by other trains accelerating nearby.
arxiv
Advanced Healthcare Materials, EarlyView.This study investigates the role of triply periodic minimal structures in load bearing bone tissue engineering applications. Research uses a combination of mechanical testing, material characterization, and in vitro tests to study the impact of TPMS lattice structures (gyroid, lidinoid and split‐P).
Tejas M. Koushik +2 more
wiley +1 more source
Space shuttle orbit maneuvering engine reusable thrust chamber program [PDF]
Analyses and preliminary designs of candidate OME propellant combinations and corresponding engine designs were conducted and evaluated in terms of performance, operating limits, program cost, risk, inherent life and maintainability.
Pauckert, R. P., Tobin, R. D.
core +4 more sources
Advanced Healthcare Materials, EarlyView.Deinococcus radiodurans‐derived extracellular vesicles (R1‐EVs) provide radioprotection against total‐body irradiation‐induced acute radiation syndrome in mice. R1‐EVs mitigate oxidative damage by scavenging free radicals, promoting intestinal repair, enhancing hematopoietic function, and modulating immune responses. This study highlights the potential
Jeong Moo Han +7 more
wiley +1 more source