Results 51 to 60 of about 2,094 (200)

Unlocking Hydrokinetic Energy in the Brazilian Amazon: A Statistical Resource Assessment and Economic Feasibility Analysis

open access: yesEnergy Science &Engineering, EarlyView.
This study develops a spatial and technical framework to evaluate hydrokinetic energy potential in the Amazon as a sustainable alternative to diesel‐based systems. By modeling regional resources, we demonstrate that hydrokinetic sources offer a cleaner, economically competitive solution for displacing fossil fuels in remote riverine communities ...
Ana Cláudia Pinto Ferraz   +4 more
wiley   +1 more source

Acoustic design method of ship's cabin based on geometrical acoustics

open access: yesZhongguo Jianchuan Yanjiu, 2017
In light of the question of how to select the best noise control position and measures in the large noise transmission path of the cabins of a ship, based on the acoustic ray-tracing method in the theory of geometrical acoustics, and by considering the ...
FENG Aijing, WEI Qiang, ZHANG Dahai
doaj   +1 more source

Design Approaches for Oxygen Reduction Systems for Warehouse Storage Applications

open access: yesFire and Materials, EarlyView.
ABSTRACT Oxygen reduction systems (ORS) are protection systems, with a design protection objective to limit fire spread beyond the point of ignition. Research has shown that the prescriptive design methods, in VdS 3527, EN 16750, and ISO 20338, are not appropriate as prescriptive design methods as they result in insufficient protection levels.
Martin Nilsson   +3 more
wiley   +1 more source

Stability Analysis in a Direct-Current Shipboard Power System with Parallel Permanent Magnet Synchronous Generators and Supercapacitor Integration

open access: yesJournal of Marine Science and Engineering
This paper investigates the small-signal stability of a DC shipboard power system (SPS) with the integration of a supercapacitor. As an efficient energy storage solution, supercapacitors can not only provide rapid energy response to sudden power demand ...
Qinsheng Yun   +4 more
doaj   +1 more source

Biosurfactant‐assisted recovery and remediation of hydrocarbons from oily sludge using a mobile aerated washing system

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The oil industry generates oily sludge, the accumulation of which poses a serious environmental problem. Conventional methods require high costs, specialized equipment, and qualified personnel. This waste can be treated using biosurfactants.
Maria Eduarda Pereira da Silva   +6 more
wiley   +1 more source

Biosurfactant Production From Waste Frying Oil: Process Optimization and Physicochemical Characterization of Surface Properties

open access: yesJournal of Surfactants and Detergents, EarlyView.
ABSTRACT This study focuses on the development of a cost‐effective bioprocess for biosurfactant production, encompassing process optimization and physicochemical characterization. Surface tension reduction and oil dispersion activity were evaluated, highlighting its strong potential for applications in food, pharmaceuticals, and bioremediation. In this
Nihed Tellili   +3 more
wiley   +1 more source

Intelligent fault diagnosis of marine diesel engine based on deep belief network

open access: yesZhongguo Jianchuan Yanjiu, 2020
[Objectives] In order to improve the accuracy of intelligent fault diagnosis of marine diesel engine, the deep learning is introduced,and a method based on deep belief network(DBN)for intelligent fault diagnosis of marine diesel engine is proposed ...
ZHONG Guoqiang   +3 more
doaj   +1 more source

An Integrated Statistical and Machine Learning Framework for Predicting the Dry Sliding Tribological Behavior of CFRP and GFRP Composites Under Environmental Aging and Loading Conditions

open access: yesPolymer Composites, EarlyView.
The graphical abstract presents the experimental and data‐driven framework used to investigate the dry sliding tribological behavior of CFRP and GFRP composites. The effects of seawater, engine oil, diesel fuel, aging time, and normal load on the specific wear rate (SWR) and coefficient of friction (COF) were evaluated using pin‐on‐disc tests, ANOVA ...
Ahmet Saylık   +2 more
wiley   +1 more source

Research on cross-individual fault diagnosis of marine main engines based on adaptive mechanisms

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveTo address the feature drift induced by inter-individual variability in marine main engines and the scarcity of fault data in the target domain, this study leverages digital twin technology and transfer learning to achieve cross-individual fault
Guangxi SUN   +4 more
doaj   +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

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