Results 131 to 140 of about 639,011 (305)

High-Efficiency e-Powertrain Topology by Integrating Open-End Winding and Winding Changeover for Improving Fuel Economy of Electric Vehicles

open access: yesMathematics
The fuel economy of electric vehicles (EVs) is an important factor in determining the competitiveness of EVs. Since the fuel economy is affected by the efficiency of an e-powertrain composed of a motor and inverter, it is necessary to select a high ...
Kyoung-Soo Cha   +4 more
doaj   +1 more source

A preliminary study of the use of intercooling and reheat in conjunction with regeneration for aircraft turbine engines [PDF]

open access: yes
The effect on fuel consumption of turbofans with intercooled, regenerative cycles and with intercooled, regenerative, reheat cycles was studied. The technology level for both engine and aircraft was that projected for 1985.
Eisenberg, J. D.
core   +1 more source

Purchase, circulation and fuel taxation [PDF]

open access: yes, 2008
During the last decade, the UK and many other developed nations have reformed existing forms of road transport taxation to address a number of transport policy goals.
Potter, Stephen
core  

A Novel Metal Foam‐Supported Solid Oxide Fuel Cell With High Specific Power

open access: yesAdvanced Science, EarlyView.
Solid oxide fuel cells (SOFCs) employing metal foam supports with an ultrahigh porosity of 90% and average pore size of 100 µm are successfully fabricated. The metal foam architecture significantly enhances gas diffusion coefficients, effectively reducing concentration polarization while simultaneously decreasing areal mass.
Jingbo Ma   +4 more
wiley   +1 more source

Direct Recycling of Mixed‐Oxide Cathodes: Balancing Cost, Performance and Environmental Trade‐Offs

open access: yesAdvanced Science, EarlyView.
Direct regeneration routes for mixed‐oxide lithium‐ion battery cathodes are systematically compared using harmonized techno‐economic, electrochemical, and environmental metrics. Solid‐state, hydrothermal, molten salt, electrochemical, and chemical relithiation methods are benchmarked to identify performance, cost, and sustainability trade‐offs.
Evgenii Beletskii   +8 more
wiley   +1 more source

Adaptive equivalent consumption minimization strategy for ship fuel cells suffering from life decay

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveIn view of the effects of life decay on fuel cell efficiency and power system performance, an adaptive equivalent hydrogen consumption minimization strategy is proposed that considers the life decay of fuel cells.
Ning WANG, Bingsong SONG, Tianyu GAO
doaj   +1 more source

Fuel Economy [PDF]

open access: yesJournal of the Institute of Brewing, 1919
openaire   +1 more source

Nanozymes for Energy and Environmental Sustainability

open access: yesAdvanced Science, EarlyView.
At present, the widely used nanozymes are oxidoreductase and hydrolase, which have proved to have great application prospects in energy and environment. ABSTRACT Nanozymes have shown remarkable promise in addressing pressing challenges in energy and environmental sustainability.
Xiaoqi Li, Jinxing Chen, Shaojun Dong
wiley   +1 more source

Transportation fuel use, technology and standards: The role of credibility and expectations [PDF]

open access: yes
There is a debate among policy analysts about whether fuel taxes alone are the most effective policy to reduce fuel use by motorists, or whether to also use mandatory standards for fuel efficiency. A problem with a policy mandating fuel economy standards
Eskeland, Gunnar S., Mideksa, Torben K.
core  

DADA Enhances CD8+ T Cell Stemness to Improve Anti‐Tumor Immunity and Immunotherapy Efficacy

open access: yesAdvanced Science, EarlyView.
Diisopropylamine dichloroacetate (DADA) enhances CD8+ T cell stemness by improving OXPHOS and mitochondrial fitness in a PDK1‐depenpendent manner. This metabolic shift strengthens CD8+ T cell anti‐tumor immunity, improves responses to PD‐1 blockade, and endows CAR‐T cells with prolonged persistence and resistance to terminal exhaustion, highlighting a ...
Mingyue Bi   +12 more
wiley   +1 more source

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