Results 41 to 50 of about 94,399 (250)
Friction and Wear Behavior of Carburized Steels Against Ceramic Balls Under Starved Lubrication
LubricantsStarved lubrication poses a critical challenge to hybrid ceramic bearings operating under severe conditions. This study investigates the tribological behavior of carburized 20CrMo steel sliding against Al2O3 ceramic balls and GCr15 steel balls under dry ...
Xu Liu +5 more
doaj +1 more source
Machines, 2023 Prognostic and health management (PHM) methods focus on improving the performance and reliability of systems with a high degree of complexity and criticality. These systems include engines, turbines, and robotic systems.
Hla Gharib, György Kovács
doaj +1 more source
Components of Alaska Fuel Costs: An Analysis of the Market Factors and Characteristics that Influence Rural Fuel Prices [PDF]
, 2010 Many Alaskans face extremely high, volatile fuel prices. Little is publicly known about the actual structure of Alaska’s rural fuel markets and what drives prices at the community level.
Fay, Ginny +2 more
core
Performance analysis of a common-rail Diesel engine fuelled with different blends of waste cooking oil and gasoil [PDF]
, 2016 An experimental campaign was performed to study the behavior of a common-rail Diesel engine in automotive configuration when it is fuelled with blends of Diesel fuel (DF) and waste cooking oil (WCO).
CORSINI, Alessandro +5 more
core +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT This study investigates how directors with environmental protection (EP) backgrounds influence corporate biodiversity concern (BIO) among Chinese A‐share listed firms from 2008 to 2023. Drawing on Upper Echelons Theory, we argue that directors' environmental expertise shapes firms' biodiversity strategies.
Chengming Huang +2 more
wiley +1 more source
A review of CO2 catalytic regeneration research based on MEA solution
Frontiers in Energy Research, 2023 In recent years, the rapid increase of CO2 emission has caused severe environmental issues. The environmental concern has made how to reduce the carbon emissions become a hot topic. Many scholars and research teams believe that the organic amine chemical
Zhiyuan Yang +5 more
doaj +1 more source
Carbon emission assessment of tunnel infrastructures: From construction to operation
Deep Underground Science and Engineering, EarlyView.This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long +4 more
wiley +1 more source
Study of the Components of Delivered Fuel Costs in Alaska: January 2009 Update [PDF]
, 2009 This is an update of our previous report titled “Components of Delivered Fuel Prices in Alaska.”1 We provide more recent data on actual fuel prices in ten rural communities that we first examined in fall 2007.
Colt, Steve +4 more
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EcoEnergy, EarlyView.As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor +3 more
wiley +1 more source
Life cycle assessment of intensive striped catfish farming in the Mekong Delta for screening hotspots as input to environmental policy and research agenda [PDF]
, 2011 Purpose Intensive striped catfish production in the Mekong Delta has, in recent years, raised environmental concerns. We conducted a stakeholder-based screening life cycle assessment (LCA) of the intensive farming system to determine the critical ...
Bosma, R.H., Pham Thi Ahn, Potting, J.
core +2 more sources