Results 21 to 30 of about 14,807 (258)
Sensors, 2018 Threaded connections are the most common pipe fittings used in oil and gas transportation systems. Due to external vibrations, cyclic loads, and pollution, the fitting parts may start getting loose, which could result in pipeline leaks and other ...
Yabin Liang +3 more
doaj +1 more source
Progress and prospects of research and application of X80 pipeline steel and steel pipe in China
You-qi chuyun, 2020 With the rapid development of oil and gas pipeline construction, X80 pipeline steel and steel pipe have been applied on large scale. The research and application history and main progress of X80 high-grade pipeline steel and steel pipe in China were ...
Yaorong FENG +4 more
doaj +1 more source
WaterMet2: a tool for integrated analysis of sustainability-based performance of urban water systems [PDF]
, 2014 This paper presents the "WaterMet2" model for long-term assessment of urban water system (UWS) performance which will be used for strategic planning of the integrated UWS.
Behzadian Moghadam, Kourosh +4 more
core +3 more sources
A Detection of the Baryon Acoustic Oscillation Features in the SDSS BOSS DR12 Galaxy Bispectrum [PDF]
, 2017 We present the first high significance detection ($4.1\sigma$) of the Baryon Acoustic Oscillations (BAO) feature in the galaxy bispectrum of the twelfth data release (DR12) of the Baryon Oscillation Spectroscopic Survey (BOSS) CMASS sample ($0.43 \leq z \
Pearson, David W., Samushia, Lado
core +2 more sources
Transport, 2020 The article presents the findings of theoretical and experimental research on hydraulic processes occurring in the hydraulic drives of transport machines.
Mykola Karpenko, Marijonas Bogdevičius
doaj +1 more source
In-service automatic welding technology for high-grade large-diameter oil and gas pipelines
You-qi chuyun, 2021 As more long-distance oil and gas pipelines with high pressure, large diameter, high steel grade and large wall thickness are constructed, the wall of the fittings such as the hot tapping tees and the repair sleeves that are involved in the in-service ...
Juan CHEN +7 more
doaj +1 more source
Reinforcement test of epoxy-filled steel sleeves for girth weld defects of X80 pipelines
You-qi chuyun, 2021 In order to verify the applicability of epoxy-filled steel sleeves for reinforcement of the girth weld defects in X80 steel pipelines, X80 pipe fittings with 1 016 mm diameter were selected as the specimens and on the specimens two girth welds with same ...
Dongliang YU +6 more
doaj +1 more source
Gas Losses in the Distribution Networks: An Interdisciplinary Analysis
Energies, 2022 This work focuses on a very important and current problem in the gas field: gas losses in natural gas distribution networks and their impact on the environment, as well as on the company operating the network.
Cristian Nicolae Eparu +2 more
doaj +1 more source
A Method of D-Type Weld Seam Extraction Based on Point Clouds
IEEE Access, 2021 Identification of the seam to be welded in automatic welding is an important challenge, especially on a complex 3D surface. At present, most studies on weld extraction are for butt joints and fillet joints.
Jie Gao +5 more
doaj +1 more source
Pipeline Stress Analysis Through Stress Function Fittings [PDF]
Latin American Journal of Solids and Structures, 2018 Abstract This work presents a hybrid experimental technique for stress analysis in pipes due to soil-pipe interaction. It was used a variation of Digital Speckle Pattern Interferometry (DSPI) combined with a small indentation setup for acquiring radial displacement points.
Cavaco, M.A.M. +2 more
openaire +3 more sources