Results 71 to 80 of about 1,770 (297)

Numerical Study on the Hydrodynamic Characteristics of Submarine Pipelines under the Impact of Real-World Tsunami-Like Waves [PDF]

, 2019
Submarine pipelines have been extensively used for marine oil and gas extraction due to their high efficiency, safety, and low price. However, submarine pipelines are vulnerable to extreme waves (i.e., tsunami waves).
Ke Qu, Enjin Zhao, Simon Kraatz, Bing Shi, Lin Mu   +4 more
core   +4 more sources

Model test on the dynamic behavior of submarine landslides impacting the submarine pipeline

工程科学学报
Submarine landslides are a common marine geological disaster characterized by large volume, fast speed, significant disaster-causing effect, and huge range of impact, which can damage marine engineering structures, resulting in significant economic ...
Zili DAI, Shuyang CHEN, Chongqiang ZHU
doaj   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Application of remote sensing technology to the relation of submarine pipelines and coastal morphology [PDF]

, 1995
Submarine pipelines must be designed to resist wave and current induced hydrodynamic forces especially in and near the surf zone. They are buried as protection against forces in the surf zone, however this procedure is not always feasible particularly on
D. Maktav, Y. Yüksel, S. Kapdasli
core   +1 more source

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

Advanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner, Peter Förster, Alexander Limper, Anselm Brodersen, Matthias Wessling, John Linkhorst   +5 more
wiley   +1 more source

Centrifugal model tests on influences of anchor dropping on offshore pipelines

Yantu gongcheng xuebao
Anchoring is one of the important factors affecting the safe operation of submarine pipelines. The centrifugal model tests are carried out by using the TK-C500 geotechnical centrifuge and the newly developed anchor dropping test devices.
LIU Haicheng 1, AN Xiaoyu 1, 2, WANG Fei 1, ZHANG Yuting 1, LI Jiandong 1, BIAN Tianqi 1, 2, YUAN Guangzong 1, 2
doaj   +1 more source

Seismic Dynamics of Pipeline Buried in Dense Seabed Foundation

Journal of Marine Science and Engineering, 2019
Submarine pipeline is a type of important infrastructure in petroleum industry used for transporting crude oil or natural gas. However, submarine pipelines constructed in high seismic intensity zones are vulnerable of attacks from seismic waves.
Yan Zhang, Jianhong Ye, Kunpeng He, Songgui Chen   +3 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

An Assessment of the Residual Stress of Pipelines Subjected to Localized Large Deformations

Journal of Marine Science and Engineering
Subsea pipelines subjected to impacts are prone to generating significant deformations and residual stresses, which could reduce their structural integrity and increase the risk of failure.
Wanhai Xu, Hang Li, Zhiyou Song, Congyan Meng   +3 more
doaj   +1 more source

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source