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Loris Barillari, Augusto Della Torre, Gianluca Montenegro and Angelo Onorati
In the last decade, additive manufacturing (AM) techniques have been progressively applied to the manufacturing of many mechanical components. Compared to traditional techniques, this technology is characterized by disruptive potential in terms of the co...
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Kazuhiro Yamamoto and Tatsuya Sakai
Nowadays, in the after-treatment of diesel exhaust gas, a diesel particulate filter (DPF) has been used to trap nano-particles of the diesel soot. However, as there are more particles inside the filter, the pressure which corresponds to the filter backpr...
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Nikolaos P. Kyrtatos
Pág. 1581 - 1590
This paper provides an overview of the HERCULES R&D programme on large engine technologies. The main issues in marine engine design and operation have always been Reliability, Fuel economy and (since 2000) Emissions. With the ongoing R&D efforts, the iss...
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Daekun Kim
To reduce air pollution worldwide, regulations on exhaust gas emissions from ships are becoming increasingly stringent. One fuel that is being considered as an alternative to replace the heavy fuel oil used in existing ship engines and thereby reduce har...
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Jinjin Huang, Hongjun Fan, Xiangyang Xu and Zheyu Liu
The International Maritime Organization (IMO) has set decarbonisation goals for the shipping industry. As a result, shipowners and operators are preparing to use low- or zero-carbon alternative fuels. The greenhouse gas (GHG) emission performances are fu...
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Kirsi Spoof-Tuomi, Hans Arvidsson, Olav Nilsson and Seppo Niemi
Transition to low emission transportation and cleaner cities requires a broad introduction of low- and zero-carbon alternatives to conventional petrol- and diesel-powered vehicles. New-generation gas buses are a cost-effective way to reduce local air pol...
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Van Chien Pham, Beom-Seok Rho, Jun-Soo Kim, Won-Ju Lee and Jae-Hyuk Choi
A numerical study was carried out to investigate the effects of methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), and dimethyl ether (DME) on the combustion and emission characteristics of a four-stroke gas-diesel dual-fuel (DF) marine engine...
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Yong-Seok Choi and Tae-Woo Lim
A regulation on the sulfur emissions of ships sailing in global sea areas has been enforced since 1 January 2020. In this new regulation, ships are required to use low-sulfur fuel oils or to install an after-treatment equipment, such as a scrubber. Open ...
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Laura Moretti, Stefano Natali, Alice Tiberi and Antonio D?Andrea
The aim of this paper is to present the results of X-ray diffraction (XRD) tests and scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS) analyses on a natural and lime-treated clay, in order to determine the percentage of lime abl...
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Hyun Gyu Hwang, Min Seo Kim, Soo Min Shin and Cher Won Hwang
The biosand filter (BSF) is widely applied in developing counties as an appropriate technology-based product for supplying ?safe? water. Biosand filters exhibit relatively high purifying efficiency because of the schmutzdecke (biofilm) embedded in them. ...
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Marisela Rodríguez Salvador,Paola Cruz Zamudio,Andrés Santiago Avila Carrasco,Elías Olivares Benítez,Beatriz Arellano Bautista
Additive manufacturing is an emerging technology that brings several opportunities to the manufacturing industry. Therefore, research in this arena on current and future developments is required to make strategic decisions. Under this context, the goal o...
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Klaus Solberg Søilen
JISIB continues to publish Case Studies. In addition we also publish in this issue Patents Analyses. Patent analyses can be read both as examples of how to perform such analyses, but may also find interest within specific industries. Professor Henri Dou,...
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