Results 91 to 100 of about 13,264 (265)

Experimental Investigation of Neutralized Waste Cooking Oil Biodiesel and Diesel Fuels in a Direct Injection Diesel Engine at Different Engine Loads

open access: yesInternational Journal of Automotive Science and Technology, 2017
In this study, the effects of neutralized waste cooking oil biodiesel-diesel mixture (B30) and diesel fuels on combustion, performance and emission characteristics were investigated and compared experimentally in a four stroke, single cylinder direct ...
Emre Yılmaz   +3 more
doaj   +2 more sources

Dynamic Analysis of Electrically Assisted Turbocharger Rotor Considering Contact Effects in Nut Structures

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The rotor system of an electrically assisted turbocharger (EAT) is composed of multiple shaft components; The nonlinear connection and contact effects make it difficult to determine the system dynamic characteristics. To improve the modeling accuracy of EAT rotor system and evaluate the influence of contact between multi‐axis components and ...
Wenchao Liang   +5 more
wiley   +1 more source

Energy Optimization Models for the Locomotive Assignment Problem

open access: yesNetworks, EarlyView.
ABSTRACT Reducing energy consumption is a key objective in transportation. Using detailed infrastructure data, this study introduces the Green Locomotive Assignment Problem (GLAP) to minimize energy consumption in railway operations by efficiently assigning locomotives to pre‐scheduled trains.
Gislind Baumgartner   +3 more
wiley   +1 more source

Shining light on the aurora's contributions to people: A qualitative study of the aurora borealis in Greenland

open access: yesPeople and Nature, EarlyView.
Abstract The aurora borealis (northern lights) is an abiotic natural phenomenon that contributes to human well‐being. There is currently a significant research gap in primary qualitative valuation of the aurora's links to people. This exploratory qualitative study applies the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES ...
James David Broome   +3 more
wiley   +1 more source

Predictive modeling and optimization of a waste cooking oil biodiesel/diesel powered CI engine: an RSM approach with central composite design

open access: yesScientific Reports
Due to the restrictions of the diesel engine emissions and the massive demand of energy, the fossil diesel fuel has been consumed quickly and the resources cannot suffice the demand. Alternative fuels that include bio alcohols, hydrogen and biodiesel can
Medhat Elkelawy   +7 more
doaj   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Stop Using Limiting Stimuli as a Measure of Sensitivities of Energetic Materials

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Accurately estimating the sensitivity of explosive materials is a potentially life‐saving task that requires standardised protocols across nations. One of the most widely applied procedures worldwide is the so‐called ‘1‐In‐6’ test from the United Nations (UN) Manual of Tests in Criteria, which estimates a ‘limiting stimulus’ for a material. In
Dennis Christensen, Geir Petter Novik
wiley   +1 more source

Reframing FDI Motivations Through OLIP: Explaining Private Engagement for Sustainable Development in PPPs

open access: yesSustainable Development, EarlyView.
ABSTRACT The drivers of firms' participation in fragile markets have become increasingly complex. Under such conditions, the conventional explanation focusing on incentives within the OLI framework—ownership, location, and internalization advantages—proves insufficient.
Yu Ri Kim, Seo Yun Choi, Taewoo Roh
wiley   +1 more source

Business Model and Sustainable Development Goals for an Innovative Agricultural Waste Management: Distributed Biogas Production

open access: yesSustainable Development, EarlyView.
ABSTRACT Technological progress and population growth have increased global pork demand; leading to a rise of methane emission from pig farming, a key contributor to climate change. Anaerobic digestion offers a sustainable solution by converting manure into biogas.
María‐Pilar Martínez‐Hernando   +5 more
wiley   +1 more source

The diesel engine.

open access: yesThe diesel engine.
種別 ...
openaire  

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