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Kichul Kim, Seongmin Pyo and Jinwoo Jung
With increasing interest in the W-band, there is growing focus on parabolic reflector antennas that are known for efficiently inducing high-gain radiation characteristics. There is particular focus on parabolic antennas with diverse defocus-fed applicati...
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Marjan Dodic, Branimir Krstic, Bosko Rasuo, Mirko Dinulovic and Aleksandar Bengin
This article addresses the numerical computation problem of induced inflow ratio based on the helicopter momentum theory in forward flight. The Glauert inflow formula (equation) is a nonlinear equation usually solved by the Newton?Raphson method in a rel...
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Yankai Liu, Mengjun Chen, Wei Li and Bingchuan Cheng
The safe thickness of concrete retaining walls for curtain grouting on tunnel faces is an essential factor related to tunnel safety and grouting effects. In this research, the concrete retaining wall was simplified into a standard rectangular slab struct...
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Donato de Rosa, Elisa Morales Tirado and Giuseppe Mingione
With the mandatory requirement for more efficient aircraft due to both economic and environmental purposes, academy and industry are exploring new aircraft design opportunities including the concepts of hybrid-electric and fully electric vehicles. Within...
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Annalisa De Leo, Laura Cutroneo, Damien Sous and Alessandro Stocchino
Microplastic (MP) debris is recognized to be one of the most serious threats to marine environments. They are found in all seas and oceanic basins worldwide, even in the most remote areas. This is further proof that the transport of MPs is very efficient...
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Zheng Wei and Yusheng Jiang
Surface surcharge changes the existing equilibrium stress field of the stratum and adversely affects the existing tunnel. This paper presents a simplified analytical solution for calculating the longitudinal displacement of existing tunnels that are subj...
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Yu Wang, Junci Cao, Qingbin Tong, Guoping An, Ruifang Liu, Yihuang Zhang and Hua Yan
The transient thermal performance of rolling bearings affects the mechanical performance and system safety of traction motors. Most of the traditional empirical formulas used in temperature analysis have been simplified and cannot be completely applied t...
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Alexander Heilmeier, André Thomaser, Michael Graf and Johannes Betz
In circuit motorsport, race strategy helps to finish the race in the best possible position by optimally determining the pit stops. Depending on the racing series, pit stops are needed to replace worn-out tires, refuel the car, change drivers, or repair ...
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Sayed Masihullah Ahmadi, Yoshimichi Yamamoto and Vu Thanh Ca
In the case of huge tsunamis, such as the 2004 Great Indian Ocean Tsunami and 2011 Great East Japan Tsunami, the damage caused by ground scour is serious. Therefore, it is important to improve prediction models for the topographical change of huge tsunam...
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José de Jesús Rivero Oliva,Manuel Perdomo Ojeda
Pág. 148 - 157
O artigo propõe uma metodologia para a construção e avaliação de árvores de falhas de sistemas em espera, com componentes redundantes testados periodicamente, que avalia o impacto das políticas de testes periódicos na indisponibilidade do sistema, atravé...
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