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Davide Di Pasquale and Simon Prince
Since modern transport aircraft cruise at transonic speeds, shock buffet alleviation is one indispensable challenge that civil transport research needs to be addressed. Indeed, in the transonic flow regime shock-induced separation and transonic buffet co...
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Arumugam Madhan Kumar, Akeem Yusuf Adesina, Jothi Veeramani, Mohammad Mizanur Rahman and J. S. Nirmal Ram
Hybrid treatments consisting of surface modification and subsequent protective coatings have gained extensive attention among corrosion mitigation approaches for a wide variety of structural metallic materials. This study aims to review the enhancement o...
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Zuzana Murcinková, Jozef ?ivcák, Jozef Zajac and Pavel Adamcík
In this study, the effect of multi-layer composite passive dampers on the dynamic properties of a mechanical system (a testing machine tool bench) was tested. Passive dampers are characterized by a layered structure, with each layer consisting of a speci...
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Patricia Jovicevic-Klug, Matic Jovicevic-Klug and Bojan Podgornik
The role of nitrogen, introduced by deep cryogenic treatment (DCT), has been investigated and unraveled in relation to induced surface chemistry changes and improved corrosion resistance of high-alloyed ferrous alloy AISI M35. The assumptions and observa...
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Patrizia Bocchetta, Liang-Yu Chen, Juliana Dias Corpa Tardelli, Andréa Cândido dos Reis, Facundo Almeraya-Calderón and Paola Leo
The high specific strength, good corrosion resistance, and great biocompatibility make titanium and its alloys the ideal materials for biomedical metallic implants. Ti-6Al-4V alloy is the most employed in practical biomedical applications because of the ...
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Ingmar Bösing, Georg Marquardt and Jorg Thöming
Martensitic stainless steels are widely used materials. Their mechanical and corrosion properties are strongly influenced by their microstructure and thereby can be affected by heat treatment. In the present study, the effect of different austenitizing t...
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Tomas Horvath,Petr Munster,Josef Vojtech,Ondrej Havlis,Martin Gallo
Pág. 141 - 147
Passive optical networks are the most promising solution for access networks. The first standard provided only 155 Mbit/s but current networks work according to ITU-T G.984.3 with 2.5 Gbit/s in downstream. However, NG-PON2 offers up to 40 Gbit/s in ...
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Hongqing Lv, Shan Liu, Jiahao Chen and Baoli Li
The energy consumption of a vehicle is closely related to the resistance it receives, and it is of great significance to study the drag reduction of a vehicle to promote energy conservation and emissions reductions. Boundary layer control drag reduction ...
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Vlastimil Clupek, Tomas Horvath, Petr Munster and Vaclav Oujezsky
Passive optical networks are currently the most promising solution for access networks. These networks rely on broadcast signal distribution in the downstream direction and unicast signal transmission in the upstream direction. The upstream direction is ...
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Giedrius Abromavicius, Martynas Skapas and Remigijus Ju?kenas
Co2+:MgAl2O4 crystals are successfully used as passive Q-switches within the cavity of erbium glass lasers. Their limited resistance to laser radiation might also put constraints on the generated output peak power. Usually, polishing of optical substrate...
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Ulises Martin, Jacob Ress, Juan Bosch and David M. Bastidas
Electrochemical corrosion of thermo-mechanically processed (TMP) and recrystallized Fe-30Mn-5Al-0.5C twinning-induced plasticity (TWIP) steels containing 30 wt.% Mn was studied in a 1.0 wt.% NaCl electrolyte solution. The alkaline nature of the corrosion...
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Aristia L. Philippou, Pavlos K. Zachos and David G. MacManus
High-speed air intakes often exhibit intricate flow patterns, with a specific type of flow instability known as ?buzz?, characterized by unsteady shock oscillations at the inlet. This paper presents a comprehensive review of prior research, focused on un...
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Fangyou Yu, Zhanbiao Gao, Qifan Zhang, Lianjie Yue and Hao Chen
Suppressing shock-induced flow separation has been a long-standing problem in the design of supersonic vehicles. To reduce the structural and design complexity of control devices, a passive control technique based on micro-serrations is proposed and its ...
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Santiago Bonachela, María Rosa Granados, Joaquín Hernández, Juan Carlos López and Juan José Magán
Greenhouse microclimate and crop response of winter cucumber cycles grown in unheated Mediterranean greenhouses with representative combinations of passive heating systems (fixed, plastic screen with and without black mulch; movable thermal screen with b...
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Sana Dardouri, Ekrem Tunçbilek, Othmen Khaldi, Müslüm Arici and Jalila Sghaier
Energy conservation in buildings has been the focus of many studies since nearly one-third of global energy consumption is due to buildings. Phase change material (PCM) technology promises to be an attractive solution for energy saving in buildings since...
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Riccardo Vettraino, Valeria Valentini, Paola Pogliani, Marco Ricci, Stefano Laureti, Serena Calvelli, Rocco Zito, Luca Lanteri and Claudia Pelosi
This paper summarizes the main results of the study, diagnostics, and restorations conducted and applied to a 16th century wall painting (a portion of the frieze and the Riario coat of arm) in Palazzo Gallo (Bagnaia, Viterbo district?central Italy) recen...
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Ping-Han Chung, Yi-Xuan Huang, Kung-Ming Chung, Chih-Yung Huang and Sergey Isaev
Vortex generators (VGs) are a passive method by which to alleviate boundary layer separation (BLS). The device-induced streamwise vortices propagate downstream. There is then lift-off from the surface and the vortex decays. The effectiveness of VGs depen...
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Ke Zhao, Hongyan Wu, Changle Xiao, Jieyang Dong, Junzhao Ren and Zhaoxiang Peng
In order to improve the corrosion resistance of implant materials and understand the corrosion mechanisms, we prepared a biomedical Nb-Zr alloying layer on 316L stainless steel using double-layer glow plasma surface-alloying technology and investigated t...
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Giulia Masi
Alkali activated materials as possible sustainable alternative to cementitious binders showed competitive performances in terms of mechanical and durability properties and high temperature stability. For this reason, light weight fly-ash based mortars ha...
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Katarzyna M. Mroczkowska, Paulina Dzienny, Aleksander Budnicki and Arkadiusz J. Antonczak
This article is aimed to study the effect of laser treatment of AISI 304 stainless steel on the corrosion resistance and chemical composition of the surface layer. The samples were irradiated using two quite different laser sources: IPG Yb:glass fibre la...
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