Results 41 to 50 of about 201,520 (308)

Socioenvironmental implications of Jatropha curcas cultivation for biodiesel supply in postmining communities

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The long‐term viability of Jatropha curcas as a biodiesel feedstock has been widely debated. Many early initiatives failed to deliver consistent economic returns despite promising environmental attributes. This study re‐evaluated J. curcas‐based systems within an integrated environmental–economic framework, focusing on their potential role in ...
Eduardo Sansão Sozinho Maurício   +3 more
wiley   +1 more source

Friction and Wear Behavior of Carburized Steels Against Ceramic Balls Under Starved Lubrication

open access: yesLubricants
Starved 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

Simulating competition in the US bioeconomy to produce hard‐to‐electrify transportation fuels using limited biomass resources

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study presents a novel bioeconomy optimization framework, BiOpt, designed to address critical questions regarding the strategic use of limited US biomass resources for biofuel production. By integrating detailed techno‐economic analyses, life cycle assessments, and resource assessment data, BiOpt optimizes resource distributions across ...
Nicholas A. Carlson   +3 more
wiley   +1 more source

A research on fuelling a truck diesel engine with hydrogen [PDF]

open access: yesE3S Web of Conferences, 2019
The paper presents experimental and theoretical investigations results of a truck diesel engine fuelled with diesel fuel and hydrogen by diesel-gas method.
Nutu Nikolaos Cristian   +5 more
doaj   +1 more source

Communication of Business‐Nonprofit Collaborations and Environmental Legitimacy: Exploratory Insights From Italian Firms

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Collaborations with nonprofits can enhance firms' legitimacy, yet the relationship between their communication and corporate environmental legitimacy remains poorly understood. Furthermore, research lacks an analysis of the communication of business‐nonprofit collaborations through multiple actors' perspectives.
Andrea Rizzuni   +3 more
wiley   +1 more source

The Impact of Sustainability Orientation and Sustainability Challenges in SME Responses to Institutional Support

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT SMEs receive increasing institutional support to embed sustainability, yet they vary widely in their ability to translate such support into practice. This study addresses this gap by examining the internal cognitive and strategic mechanism (sustainability orientation) through which managers interpret institutional support and the contextual ...
Michael Zisuh Ngoasong   +3 more
wiley   +1 more source

Simulation and optimization of the casting process for a new commercial Al-4Cu-0.3Mg-0.25Mn-0.05Ag alloy cylinder head

open access: yesJournal of Materials Research and Technology
The cylinder head have a complex internal structure and significant variation in wall thickness. Consequently, the corresponding casting process poses challenges in design.
Fei Li   +5 more
doaj   +1 more source

Characterising the friction and wear between the piston ring and cylinder liner based on acoustic emission analysis [PDF]

open access: yes, 2014
In this paper, an experimental investigation was carried out to evaluate the friction and wear between the cylinder liner and piston ring using acoustic emission (AE) technology.
Ball, Andrew   +4 more
core  

From Green Governance to Biodiversity Strategy: The Role of Environmentally Experienced Directors in Chinese Firms

open access: yesBusiness 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 Novel Modular Multi-Unit Cell Permanent Magnet Thrust Bearing with Bionic Design and Load-Carrying Capacity Analysis

open access: yesApplied Sciences
Permanent magnet thrust bearings have garnered significant attention due to their high rotational speeds, low noise levels, and excellent vibration-damping performance.
Xiangdong Yu   +6 more
doaj   +1 more source

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