Results 131 to 140 of about 6,192,955 (429)

Moving Cooler: An Analysis of Transportation Strategies for Reducing Greenhouse Gas Emissions [PDF]

open access: yes, 2009
Summarizes estimates of the costs and impact on greenhouse gas emissions of transportation strategies that raise fuel efficiency, lower fuel carbon content, reduce vehicle travel, and improve the transportation network and of combinations of ...

core  

Active Hydrogen for Electrochemical Ammonia Synthesis

open access: yesAdvanced Functional Materials, EarlyView.
This review provides a comprehensive overview of the active hydrogen (H*) for electrochemical ammonia synthesis with particular attention given to the regulation of H* generation and consumption to suppress the competition of hydrogen evolution reaction and enhance the yield, selectivity, and Faradaic efficiency of ammonia.
Guoqiang Gan, Guo Hong, Wenjun Zhang
wiley   +1 more source

Methods for Fuel Consumption Reduction in Commercial Vehicles

open access: yesМеханика машин, механизмов и материалов, 2014
The following means to reduce fuel consumption by commercial vehicles were examined: decrease of aerodynamic drag and tire drag; optimization of engine and transmission characteristics, and optimization of their operation modes.
D.Kh. Valeev, V.S. Karabtsev
doaj  

ERRα fosters running endurance by driving myofiber aerobic transformation and fuel efficiency. [PDF]

open access: yesMol Metab, 2023
Xia H   +4 more
europepmc   +1 more source

Green-Technology Automobiles: Can modern innovations save the environment and consumers\u27 pockets

open access: yes, 2014
Cars of the past are notorious for poor fuel efficiency and high carbon emissions. With the presence of hybrid technology, along with a variety of other green innovations, many of these negative side effects can be mitigated. The purpose of this study is
Mahon, Steven M.   +2 more
core  

PTO performance and NOx emissions with D2, B20, and B100 fuels in a John Deere 3203 compact tractor [PDF]

open access: yes, 2007
Tests were conducted in fall 2006 on a John Deere 3203 diesel tractor to determine differences in specific fuel consumption, power take-off (PTO) torque, PTO power, thermal efficiency, and oxides of nitrogen (NOx) emissions between No. 2 diesel (D2), 20%
Brown, Tonya   +4 more
core   +2 more sources

Facet‐Junction Induced Strong Metal Support Interaction for Enhanced Alkaline Hydrogen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
In this study, a novel facet‐junction strategy is proposed to enhance the strong metal‐support interaction (SMSI) between the loaded Ru atoms and the Co3O4 support. The synthesized structure with the incorporation of Ru doping and the (100)/(111) crystal plane junction has a particular influence on the catalyst's hydrogen evolution reaction (HER ...
Wenqian Shen   +6 more
wiley   +1 more source

Photo‐Assisted Zn‐Iodine Battery via Bifunctional Cathode with Iodine Host and Solar Response Boost

open access: yesAdvanced Functional Materials, EarlyView.
A bifunctional cathode based on BiOI materials is developed for photo‐assisted Zn‐iodine batteries, serving as both an iodine host and a solar‐responsive material. This design enables dual reaction routes involving vacancy‐based iodine storage and reversible two steps iodine redox.
Hai Xu   +4 more
wiley   +1 more source

Development of Representative Sailing Mode Construction Methodology Using Markov Chain

open access: yesJournal of Marine Science and Engineering
The strengthening of regulations such as EEXI, EEDI, and CII on ship emissions is underway. Despite their application, objective comparisons of ships are hindered by diverse navigation patterns and varying velocity regulations in different seas and ports.
Changjae Moon   +3 more
doaj   +1 more source

Performance Comparison Between Two Different Injector Configurations in a Hybrid Rocket [PDF]

open access: yes, 2007
Mass flux and pressure are usually considered the main parameters affecting the fuel regression rate in hybrid rockets, whereas the influence of the oxidiser injector is often neglected. Nevertheless, in some specific configurations, even in conventional
CARMICINO, CARMINE, RUSSO, ANNAMARIA
core   +1 more source

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