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Artur Siqueira Nóbrega de Freitas, Alexander Alfonso Alvarez, Roberto Ramos, Jr. and Ettore Apolonio de Barros
The structure of an autonomous underwater vehicle (AUV), usually composed of a cylindrical shell, may be exposed to high hydrostatic pressures where buckling collapse occurs before yield stress failure. In conventional submarines, welded stiffeners incre...
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William P. Schonberg
A primary spacecraft design consideration is the anticipation and mitigation of the possible damage that might occur in the event of an on-orbit micro-meteoroid or orbital debris (MMOD) particle impact. While considerable effort has been expended in the ...
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William P. Schonberg
A primary spacecraft design consideration is the anticipation and mitigation of the possible damage that might occur in the event of an on-orbit micro-meteoroid or orbital debris (MMOD) particle impact. While considerable effort has been expended in the ...
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Vladimir Bukanov
Pág. 11 - 17
A regular surveillance program for VVER-1000 and its shortages are described. The Methodology for determination of neutron flux functionals on surveillance specimens of VVER-1000 pressure vessel is presented. The radiation exposure monitoring system for ...
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Stefan Ritter and Hans-Peter Seifert
Low-alloy reactor pressure vessel steels have a rather low susceptibility to stress corrosion cracking (SCC) in a boiling water reactor (BWR) environment if the high-temperature water contains no anionic impurities. Recent investigations revealed that un...
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Pawel Gasior, Karol Wachtarczyk, Aleksander Blachut, Jerzy Kaleta, Neha Yadav, Marcin Ozga and Amelie Baron
The proposed assessing method can find an application for the non-destructive evaluation of PE liners at the beginning of the manufacturing chain of high-pressure composite vessels for hydrogen storage. It can be a low-cost method supporting visual inspe...
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Piotr Jan Bielawski
The quality of company asset management is significantly dependent on the quality of a system for asset wear margin identification. A pipeline?machine subsystem may be an essential part of assets in many production companies. It is necessary to build mod...
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Shane Haladuick and Markus R. Dann
For engineering systems, decision analysis can be used to determine the optimal decision from a set of options via utility maximization. Applied to inspection and maintenance planning, decision analysis can determine the best inspection and maintenance p...
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This paper describes a series of experiments performed to study the explosion characteristics of propanol isomer (1-propanol and 2-propanol)–air binary mixtures. The experiments were conducted in two different experimental arrangements—a 0.02...
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Xiaoyan Guo, Yuanzhen Ou, Konghong Deng, Xiaolong Fan, Rui Jiang and Zhiyan Zhou
Fungal spores that cause infectious fungal diseases in rice are mainly transmitted through air. The existing fixed, portable or vehicle-mounted fungal spore collection devices used for rice infectious diseases have several disadvantages, such as low effi...
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Mohsen Besharat, Maria Teresa Viseu and Helena M. Ramos
An experimental assessment of an air pocket (AP), confined in a compressed air vessel (CAV), has been investigated under several different water hammer (WH) events to better define the use of protection devices or compressed air energy storage (CAES) sys...
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Mohsen Besharat, Maria Teresa Viseu, Helena M. Ramos
Pág. 1 - 16
An experimental assessment of an air pocket (AP), confined in a compressed air vessel (CAV), has been investigated under several different water hammer (WH) events to better define the use of protection devices or compressed air energy storage (CAES) sys...
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Gábor Vértesy, Antal Gasparics, Ildikó Szenthe and Inge Uytdenhouwen
In this paper, the application of a nondestructive magnetic testing method is analyzed for neutron irradiation-generated embrittlement of nuclear pressure vessel materials. It was found that in spite of the big scatter of measurement points, the degradat...
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Ivan Corazza, Pier Luca Rossi and Romano Zannoli
Background: Despite the growing interest in CO2 angiography, some mechanical aspects related to CO2 injection still need to be deepened, and some improvements are still possible. This work explores the possibility of optimizing gas injection into small-s...
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Madhumithra Subramanian Karthikesh, Sa Wu, Rohit Singh, Yannis Paulus, Xueding Wang and Xinmai Yang
Several studies have investigated the effect of photo-mediated ultrasound therapy (PUT) on the treatment of neovascularization. This study explores the impact of PUT on the release of the vasoactive agents nitric oxide (NO) and prostacyclin (PGI2) from t...
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Batuhan Aktas, Naz Yilmaz, Mehmet Atlar, Noriyuki Sasaki, Patrick Fitzsimmons and David Taylor
This study aims to demonstrate the merits of pressure-relieving holes at the tip region of propellers, which is introduced as ?PressurePoresTM? technology as a retrofit on marine propellers to mitigate tip vortex cavitation noise for a quieter propeller....
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Hyung-Gyu Park and Young-Nam Kwon
Reverse osmosis (RO) elements operating at a low pressure (LP) or a low energy (LE) are generally called ?LPRO? or ?LERO?, and the nomenclature ?LP? and ?LE? are convertible due to the interrelated features of the pressure and the energy in the RO proces...
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Guodong Qin, Changyang Li, Huapeng Wu and Aihong Ji
The vacuum vessel (VV) inside and outside inspection of the Demonstration Fusion Power Plant (DEMO) is very difficult due to various constraints, such as non-magnet effect material requirements, constrained space, and neutrons on its surfaces. We propose...
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Inno Gatin, Juvel Cokic, Darjan Romic and Jo?ko Parunov
Submersible vessels designed to operate at low speeds are often designed with an intricate exostructure, as well as other elements that are located outside of the main pressure hull. Exostructure elements are often of cylindrical or rectangular shape, po...
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Arnav Pathak, Victor Norrefeldt and Marie Pschirer
One of the objectives of the CleanSky-2 project is to develop an Environmentally Friendly Fire Protection (EFFP) system to substitute halon for the aircraft cargo hold. For this, an aircraft demonstrator including the cargo hold was equipped with a nitro...
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