Results 51 to 60 of about 3,364 (224)

Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing

Limnology and Oceanography: Methods, EarlyView.
Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias, Inés Mazarrasa, Beatriz Marin‐Diaz, Teresa Alcoverro, Barbara Ondiviela, Jordi F. Pagès, Eduardo Infantes   +6 more
wiley   +1 more source

Dynamics Simulation of Remotely Operated Vehicle-Fiber Optic Micro Cable System

, 2008
Li Q, Xu H, Zhang Q, Wang X, Li ZG. Dynamics Simulation of Remotely Operated Vehicle-Fiber Optic Micro Cable System.
Li, ZhiGang, Li ZG(李智刚), Xu, Hongli, Zhang QF(张奇峰), Qiang Li, Li, Qiang ; https://orcid.org/, Wang, Xiaohui, Xiaohui Wang, Zhigang Li, Wang XH(王晓辉), Hongli Xu, Qifeng Zhang, Zhang, Qifeng, Li Q(李强), Xu HL(徐红丽)   +14 more
core   +1 more source

A Markov Chain state transition approach to establishing critical phases for AUV reliability [PDF]

, 2011
The deployment of complex autonomous underwater platforms for marine science comprises a series of sequential steps. Each step is critical to the success of the mission. In this paper we present a state transition approach, in the form of a Markov chain,
Griffiths, Gwyn, Gwyn Griffiths, Mario Paulo Brito, Brito, Mario   +3 more
core   +1 more source

Ultra‐broadband sound absorption characteristics in underwater ultra‐thin metamaterial with three layer bubbles

Engineering Reports
The interest of this article is to obtain the underwater broadband sound absorption characteristics by filling three layers of bubbles in Polydimethylsiloxane polymer (PDMS).
Nansha Gao, Qiaogao Huang, Guang Pan
doaj   +1 more source

Electrospinning nanofilms to improve sound absorption of flexible or rigid porous material

Results in Engineering
To further enhance the sound absorption capabilities of porous materials, we employed electrospinning technology to prepare electrospinning nanofilms using polyvinyl butyral solution.
Nansha Gao, Zhicheng Zhang, Jiacheng Guo, Zhenhua Wang, Xiao Liang, Guang Pan   +5 more
doaj   +1 more source

Research Progress on Corrosion of Structural Materials for Unmanned Underwater Submersible Vehicles [PDF]

Cailiao Baohu
Unmanned underwater vehicles are one of the indispensable tools for people to develop， utilize and explore the ocean， and have broad military application prospects.With the continuous progress and development of science and technology， unmanned ...
ZHANG Qichao, ZHANG Baolong, JIANG Yishan, ZHAO Xin, SONG Penglei, XIAO Feng.
doaj   +1 more source

Multiple AUUV cooperative area target searching method based on distributed model

AIP Advances, 2022
Underwater unmanned vehicle cluster cooperative area target searching is an inexpensive and efficient effort for salvaging and vigilance at sea. In order to realize the autonomous area searching of the attacking underwater unmanned vehicle (AUUV) cluster,
Honggang Zhang, Yuchen Sun, Peng Wang, Hu Zhang   +3 more
doaj   +1 more source

Unmanned Aerial Systems for Corrosion Detection: Multi‐Sensor Technologies, Challenges, and Opportunities for Next‐Generation Inspection

Quality and Reliability Engineering International, EarlyView.
ABSTRACT Corrosion remains a critical threat to the integrity and service life of infrastructure in industries such as oil, gas, construction, renewable energy, and transportation. Traditional inspection methods, being labor‐intensive, hazardous, and often subjective, fall short in addressing modern inspection demands.
Alhossein Alharbi, Yunes Alqudsi, Alhasan Ali Alharbi, Mohammed Basheer Mohiuddin   +3 more
wiley   +1 more source

Influence of a passive upstream deflector on the performance of the Savonius wind turbine

Energy Reports, 2022
Some recent studies show that the aerodynamic efficiency of the Savonius wind turbine can be improved by adding a properly designed deflector upstream of the rotor blade.
Wenlong Tian, Jiaheng Bian, Guangyong Yang, Xiwen Ni, Zhaoyong Mao   +4 more
doaj   +1 more source

Enabling Under Ice Glider Operations: A Backseat Driver Approach

Journal of Field Robotics, EarlyView.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang, Benjamin Allsup, Georgios Salavasidis, Stephen Woodward, Adeniyi Adenaya, Mike Smart, Alexis Johnson, Felipe Marques Dos Santos, Jake Ludgate, Daniel Matterson, Alvaro Lorenzo, J. Alexander Brearley, Alexander Brian Phillips   +12 more
wiley   +1 more source