Results 61 to 70 of about 114,089 (230)
A case study of curriculum development related to the space environment and emerging space weather markets [PDF]
Advances in Geosciences, 2005 Space weather is a new subject which has not yet become widely understood or appreciated. The University offers the unique opportunity to develop knowledge and understanding about space weather that can then be applied as graduates enter the mainstream ...
Y. Tulunay, E. Tulunay, E. Tulunay
doaj
Biomass‐Coupled HER System: A Strategy for Sustainable and Low‐Cost Hydrogen Production
Carbon Energy, EarlyView.Pine wood is carbonized into a hierarchically porous biochar anode that undergoes carbon oxidation reaction, replacing the oxygen evolution reaction in alkaline water electrolysis. The resulting biomass‐coupled HER system converts water into hydrogen at low cell voltages, enabling low‐cost H2 production from renewable carbon resources. ABSTRACT Biomass‐
Yuming Huang +10 more
wiley +1 more source
Three-dimensional formation flying using bifurcating potential fields [PDF]
, 2009 This paper describes the design of a three-dimensional formation flying guidance and control algorithm for a swarm of autonomous Unmanned Aerial Vehicles (UAVs), using the new approach of bifurcating artificial potential fields.
Bennet, Derek J. +3 more
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A PVDF‐HFP/poly(ionic liquid) dual‐matrix solid electrolyte plasticized with Pyr13TFSI exhibits enhanced ionic conductivity, thermal stability, and interfacial compatibility. The optimized morphology and Li+ solvation structure facilitate fast ion transport and robust cycling, highlighting its promise for safe, high‐performance lithium metal batteries.
Kangsheng Huang +9 more
wiley +1 more source
2º Brazilian Aerospace Congress
Journal of Aerospace Technology and Management, 2020 The Brazilian Aerospace Congress (CAB) is an event that aims at the synergy of institutions related to the Brazilian aeronautical and astronautics sector.
André Luis da Silva +1 more
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Large scale optimization of transonic axial compressor rotor blades [PDF]
, 2008 [First Paragraphs] In the present work the Multipoint Approximation Method (MAM) by Toropov et al. (1993) has been applied to the shape optimization of an existing transonic compressor rotor (NASA rotor 37) as a benchmark case.
Polynkin, A., Shahpar, S., Toropov, V.
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez +3 more
wiley +1 more source
Failure Analysis of Nickel-hydrogen Cell Subjected to Simulated Low Earth Orbit Cycling [PDF]
, 1984 A nickel-hydrogen cell completed 10,080 simulated low earth orbit charge/discharge cycles at depths-of-discharge ranging from 50 to 80 percent prior to failure.
Mueller, V. C.
core +1 more source
Analytical/experimental comparison of the axial velocity in trailing vortices [PDF]
, 2011 The axial velocity of a vortex is a parameter which is known to be strongly related to the vortex breakdown, yet to date a complete description of its physical origins has not been achieved.
Benard, E., Giuni, M.
core +1 more source
FlexMat, EarlyView.Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu +3 more
wiley +1 more source