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Fan Zhang, Guoliang Dai, Weiming Gong, Qian Yin and Xueying Yang
Scour is a common phenomenon for laterally loaded underwater piles. The underwater piles used in different projects have different pile head conditions and pile types (flexible and rigid). On the one hand, an increasing number of rigid piles have begun t...
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Dillon O?Reilly, Georg Herdrich, Felix Schäfer, Christoph Montag, Simon P. Worden, Peter Meaney and Darren F. Kavanagh
Pulsed plasma thrusters (PPT) have demonstrated enormous potential since the 1960s. One major shortcoming is their low thrust efficiency, typically <30%. Most of these losses are due to joule heating, while some can be attributed to poor efficiency of th...
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George Kargas, Dimitrios Koka and Paraskevi A. Londra
In the present study, the three-parameter one-dimensional vertical infiltration equation recently proposed by Poulovassilis and Argyrokastritis is examined. The equation includes the saturated hydraulic conductivity (Ks), soil sorptivity (S), and an addi...
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Dimitris Ntouras, George Papadakis and Kostas Belibassakis
Flapping foils for augmenting thrust production have drawn attention as a means of assisting ship propulsion in waves due to their high efficiency rate compared to traditional screw propellers. However, they can also offer substantial resistance reductio...
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Mingsheng Chen, Guibo Yuan, Chun Bao Li, Xianxiong Zhang and Lin Li
The jacket is the most widely-used fixed foundation for offshore wind turbines due to its superior strength and low installation cost in relatively deep waters. Floating crane vessels are commonly used to install jacket foundations. However, the dynamic ...
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Duncan Tamsett
A human listening to monophonic sound through headphones perceives the sound to emanate from a point inside the head at the auditory centre at effectively zero range. The extent to which this is predicted by synthetic-aperture calculation performed in re...
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Fotios K. Katrivesis, Varvara Sygouni, Christakis A. Paraskeva and Vagelis G. Papadakis
Surface-water treatment plants use the flocculation?precipitation method followed by gravity filters to remove suspended solids. In the present work, the replacement of gravity filters with ultrafiltration membrane units is suggested to improve the effic...
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Thang Trung Nguyen, Ly Huu Pham, Fazel Mohammadi and Le Chi Kien
In this paper, a Modified Adaptive Selection Cuckoo Search Algorithm (MASCSA) is proposed for solving the Optimal Scheduling of Wind-Hydro-Thermal (OSWHT) systems problem. The main objective of the problem is to minimize the total fuel cost for generatin...
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Yuanjin Li, Tao Chen and Defu Liu
Artificial joint surface coating is a hot issue in the interdisciplinary fields of manufacturing, materials and biomedicine. Due to the complex surface characteristics of artificial joints, there are some problems with efficiency and precision in automat...
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Jian Ning, Guodong Li and Shanshan Li
The spacing of spur dikes is an important consideration for the layout of spur dike channels. This study focuses on the local scour morphology and flow field characteristics of spur dikes with different spacings. The results show that the maximum scour d...
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