Zobrazeno 1 - 10
of 4 267
pro vyhledávání: '"pressure wave"'
Autor:
Xianghan Wang, Jianpeng Guo
Publikováno v:
地球与行星物理论评, Vol 55, Iss 5, Pp 609-618 (2024)
The solar wind stream interaction region is bounded by a pair of forward-reverse pressure waves that commonly steepen into forward and reverse shock waves at large heliocentric distances. It remains unclear whether electrostatic (ES) wave modes are p
Externí odkaz:
https://doaj.org/article/1c918a99e0c2432d88f80f44560ef0b1
Publikováno v:
Chengshi guidao jiaotong yanjiu, Vol 27, Iss 5, Pp 154-158 (2024)
Objective With the increasing demand for passenger comfort in urban rail transit, pressure wave control inside metro trains at speed of 120 km/h and above has become a an essential function of train air-conditioning system. Although high-speed EMUs a
Externí odkaz:
https://doaj.org/article/910d8f2260aa433da95f7d658719fcf4
Publikováno v:
Water Practice and Technology, Vol 19, Iss 6, Pp 2399-2418 (2024)
The present work investigated the pressure changes caused by water hammer through the georeferenced model to investigate the stress impact on water transmission lines. The results of the hydraulic analysis of the research showed that the sudden stop
Externí odkaz:
https://doaj.org/article/3c3ac8a89b154559a67fa80c6dfe0dbb
Autor:
Michał Kubrak
Publikováno v:
Archives of Civil Engineering, Iss No 1, Pp 275-288 (2024)
The aim of this research was to experimentally analyse the possibility of using a rubber hose placed inside a pipeline to mitigate the water hammer phenomenon. The experiments were conducted using a steel pipeline with an inner diameter of 53 mm and
Externí odkaz:
https://doaj.org/article/0a05c2e93e4e47a6bd3671ba9a4438e2
Publikováno v:
IEEE Access, Vol 12, Pp 74662-74668 (2024)
In the pigging operation of an oil pipeline, the traditional pigging localization method can only achieve fixed-point detection and cannot track continuously. To ensure the normal operation of the pigging operation and track and locate the pig in a t
Externí odkaz:
https://doaj.org/article/b82739e1fa5e4f62855d557de3b4ca57
Publikováno v:
IEEE Access, Vol 12, Pp 71406-71418 (2024)
The negative pressure wave (NPW) signal caused by leakage of water supply pipeline contains a lot of noise due to the influence of water flow state and circuit noise, which will adversely affect the accuracy of leakage detection and leak location. To
Externí odkaz:
https://doaj.org/article/cf1c452e4085484186b789168b47d5d3
Autor:
Dalila Kraiem, Ali Triki
Publikováno v:
Aqua, Vol 72, Iss 11, Pp 2126-2137 (2023)
Recent studies have proved that the utilization of polyethylene (PE) short-section or penstock is a promising water hammer control tool. However, the interplay between the magnitude attenuation and the phase offset of pressure-wave oscillations remai
Externí odkaz:
https://doaj.org/article/3754ccd5328c497b9efd390c25a96f40
Autor:
Akhmetov, M.1, Akhmetov, N.1 nailahmat@yandex.ru, Gimadeev, M.1 minakhmetg@yandex.ru, Krivosheev, V.1
Publikováno v:
Plasma Physics Reports. Mar2017, Vol. 43 Issue 3, p393-396. 4p.
Akademický článek
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Publikováno v:
Sensors, Vol 24, Iss 18, p 6091 (2024)
In order to enhance the accuracy and adaptability of urban water supply pipeline leak localization, based on the Northern Goshawk Optimization, a novel joint denoising method is proposed in this paper to reduce noise in negative pressure wave signals
Externí odkaz:
https://doaj.org/article/924e48225d8342bf89deeac4df77339f