Results 61 to 70 of about 11,975 (310)

Variation of tow force with velocity during offshore ploughing in granular materials [PDF]

, 2012
Pipeline plough behaviour has been investigated by means of reduced scale physical model testing. A testing programme was devised to investigate the influence of permeability, relative density, and plough depth on the associated tow force measured ...
Bransby, Mark Fraser, Brown, Michael John, Gooding, Scott, Lauder, Keith Duncan   +3 more
core   +1 more source

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

Advanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky, Tuo Zhao, Glaucio H. Paulino, Emily C. Davidson   +3 more
wiley   +1 more source

Persistence of a pinch in a pipe

, 2006
The response of low-dimensional solid objects combines geometry and physics in unusual ways, exemplified in structures of great utility such as a thin-walled tube that is ubiquitous in nature and technology.
A Vaziri, Donnell L. H., Harris P. J., Hilbert D., Howard J., L Mahadevan, Landau L. D., Libai A., M Das   +8 more
core   +2 more sources

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

Advanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong, Dohyean Kim, Jiyun Jeong, Taekyeong Kim, Soon‐sung Kwon, Junyoung Seo, Il Jeon, Im Doo Jung   +7 more
wiley   +1 more source

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

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

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

Submarine Cables and the Marine Environment: Enhancing Sustainable and Harmonious Interactions [PDF]

, 2016
Kingsley Ekwere，尼日利亚哈科特港大学法学院高级讲师。【中文摘要】：海底电缆网络已成为现代生活的主要推动者，特别是在这个信息高速公路时代，应尤其强调高效、高速的国际通信的重要性。全球信息基础设施的主干网现在主要是由光纤海底电缆组成。为满足人们更好、更快的通信需求，已经构建了长距离、复杂的海底光纤电缆网络，这些电缆横跨各大洋、覆盖各大洲。但是，通信革命已经给脆弱的海洋生态系统和生物多样性带来了巨大压力，尽管目前尚不明显。本文旨在探究海底电缆和海底生态系统之间的相互作用。在保全、保护 ...
Kingsley Ekwere
core  

Optoelectrical Devices for Neural Interfacing: Engineering Integration, Stability, and Multimodal Sensing

Advanced Healthcare Materials, EarlyView.
Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou, Barbara Spagnolo, Antonio Balena, Massimo De Vittorio, Ferruccio Pisanello   +4 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