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Changjing Fu, Yangming Xu and Tianlong Zhao
One of the major geological hazards that can cause harm to long-distance oil and gas pipelines are water-induced disasters. These disasters are quite common and widespread. Pipelines that cross river channels are at a higher risk of facing damage due to ...
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Sabine Upnere, Iveta Novakova, Normunds Jekabsons, Andrejs Krasnikovs and Arturs Macanovskis
Concrete is a widely used material in various industries, including hazardous waste management. At the same time, its production creates a significant carbon footprint. Therefore, intensive research is being conducted to create more eco-friendly concrete...
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Liping Qiao, Zhechao Wang, Wei Li, Huan Liu and Lei Yang
It is of great significance to study the mechanical properties of rock fracture for the stability of rock engineering projects. The mechanical properties, including the normal compression and shear properties of rock fracture, are studied by a series of ...
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Ziyi Zhang, Zhiyuan Hu, Yan Wang, Yawei Wang, Qiqi Zhang, Dehua Liu, Hao Wang and Minyi Xu
The ocean has an abundant reserve of wave energy, which is considered to be a clean, widely distributed and inexhaustible resource. Triboelectric nanogenerators (TENGs) have been regarded as a reliable technology for harvesting wave energy due to its rob...
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Van Chien Pham, Jeong Kuk Kim, Won-Ju Lee, Su-Jeong Choe, Van Vang Le and Jae-Hyuk Choi
Piston bowl geometry plays an important role in the fuel/air mixing quality which has a direct influence on the performance and emission characteristics of the engine. This work studied the effects of piston bowl geometry on the combustion and emissions ...
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Maximilian Lackner, Thomas Hribernig, Markus Lutz, Markus Plank and Karl Putz
A novel technique for the in situ removal of mineral hydrocarbons from aged brownfields is described. The approach uses emulsions of plant oil (5?10%, rapeseed) in water, which were found to extract 50?85% of mineral hydrocarbons in one leaching step fro...
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Ahmed Elgamal and Nissreen Elfaris
This paper investigates the effects of seismic loads on tunnels in an attempt to provide better protection from earthquake shaking. Dynamic analysis of angular offset tunnels was performed, and the tunnels? behavior under earthquake shaking and their res...
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Kung-Ming Chung, Kao-Chun Su and Keh-Chin Chang
A convex corner models the upper surface of a deflected flap and shock-induced boundary layer separation occurs at transonic speeds. This study uses micro-vortex generators (MVGs) for flow control. An array of MVGs (counter-rotating vane type, ramp type ...
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Yafeng Li, Jin Wang, Yonggang Shan, Chong Wang and Yuanbiao Hu
Downhole drill string vibration data can provide an effective reference for research drill string vibration during drilling. In this paper, the research group used a storage-type downhole vibration measurement equipment equipped with an orthogonal, three...
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Lúcia Moreira, Roberto Vettor and Carlos Guedes Soares
In this paper, simulations of a ship travelling on a given oceanic route were performed by a weather routing system to provide a large realistic navigation data set, which could represent a collection of data obtained on board a ship in operation. This d...
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