Results 71 to 80 of about 4,190,742 (302)
Automobile Fuel Economy Standards: Impacts, Efficiency, and Alternatives [PDF]
This paper discusses fuel economy regulations in the United States and other countries. We first describe how these programs affect the automobile market, including their impacts on fuel use and other dimensions of the vehicle fleet.
Carolyn Fischer +3 more
core +2 more sources
Control of Synthetic Hairpin Vortices in Laminar Boundary Layer for Skin-Friction Reduction
Journal of Marine Science and Engineering, 2020 The results of flow visualization and hot-film measurement in a water channel are presented in this paper, in which the effectiveness of controlling synthetic hairpin vortices in the laminar boundary layer is examined to reduce skin friction.
Bonguk Koo, Yong-Duck Kang
doaj +1 more source
Current and future agricultural practices and technologies which affect fuel efficiency
, 2013 The report investigated how fuel efficiency could be improved in agriculture, providing signposts for future research and development, with the objective of informing agricultural equipment manufacturers, dealers and agricultural support organisations ...
Biggs, Leo, Giles, David
core +1 more source
Extended Durability Testing of an External Fuel Processor for a Solid Oxide Fuel Cell (SOFC) [PDF]
, 2012 Durability testing was performed on an external fuel processor (EFP) for a solid oxide fuel cell (SOFC) power plant. The EFP enables the SOFC to reach high system efficiency (electrical efficiency up to 60%) using pipeline natural gas and eliminates the ...
Upadhyayula, Anant +2 more
core +1 more source
Advanced Functional Materials, EarlyView.This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli +4 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Hydrophilic PEO‐copolymers and hydrophobic PDMS are physically integrated via a compatibilizing solvent into an amphipathic dual‐polymer network with versatile interfacial affinity and completely amorphized PEO segments for hyper‐permeable CO2 transport.
Ji Wu +9 more
wiley +1 more source
Application of Data Analysis in Assessing Fuel Consumption Efficiency in a Logistics Enterprise
Management Systems in Production EngineeringFuel consumption efficiency is one of the key areas for evaluating the operational performance of vehicle fleets in transport enterprises. Rising operating costs and the need for rational resource management are making the analysis of data recorded ...
Wyrwa Kornelia, Stryhunivska Olena
doaj +1 more source
On the efficiency of an advanced automotive fuel cell system
, 2007 Efficiency is the key parameter for the application of fuel cells in automotive applications. The efficiency of a hydrogen/oxygen polymer electrolyte fuel cell system is analyzed and compared to hydrogen/air systems.
Delfino, A. (author) +6 more
core +1 more source
Advanced Functional Materials, EarlyView.The 2D carbon‐supported Gd–CuO exhibits strong interfacial electronic coupling, abundant oxygen vacancies, and highly exposed active sites, enabling efficient CO enrichment and C─C coupling toward selective and durable CO2‐to‐C2H4 conversion. ABSTRACT Copper‐based catalysts are promising for electrochemical CO2 reduction toward value‐added chemicals ...
Xueya Zhu +11 more
wiley +1 more source
Fuel Efficiency and Motor Vehicle Travel: The Declining Rebound Effect [PDF]
We estimate the rebound effect for motor vehicles, by which improved fuel efficiency causes additional travel, using a pooled cross section of US states for 1966-2001.
Kurt Van Dender, Kenneth A. Small
core