Results 51 to 60 of about 17,299 (218)

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

On-the-go machine vision sensing of cotton plant geometric parameters: first results [PDF]

, 2008
Plant geometrical parameters such as internode length (i.e. the distance between successive branches on the main stem) indicate water stress in cotton.
McCarthy, Cheryl, Hancock, Nigel, Raine, Steven   +2 more
core   +2 more sources

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +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

An Unmanned Underwater Vehicle Defence System

Scientific Bulletin of Naval Academy, 2022
Nowadays, military threats are very close to us and cover terrestrial, aerial, and maritime attacks. This research defines a submarine defence system capable of monitoring and controlling a certain perimeter, based on submersible drones known as Unmanned Underwater Vehicles (UUV) and a grid of stations fixed to the seabed, which provides positioning ...
openaire   +1 more source

Where Tech Meets the SDGs: A Supply‐Chain Process Map for Sustainability Management

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study investigates how advanced technologies support Sustainable Development Goals (SDGs) within supply chain management (SCM) through a structured analysis of 4448 sustainable practices. By integrating perspectives from sustainability‐oriented innovation (SOI) and contingent dynamic capabilities, the research conceptualizes technology ...
Vincenzo Varriale, Antonello Cammarano, Moacir Godinho‐Filho   +2 more
wiley   +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

On-demand prediction of low-frequency average sound absorption coefficient of underwater coating using machine learning

Results in Engineering
This study proposes an underwater coating with sound absorption ability in the middle-to-low frequency range and establishes an acoustic theoretical model combining the equivalent medium theory and the transfer matrix method.
Nansha Gao, Mou Wang, Xiao Liang, Guang Pan   +3 more
doaj   +1 more source

Study of Automated Control System of Underwater Dosimetry Kit in Remote bottom radioactivity measurement in deepwater Areas

Глобальная ядерная безопасность, 2022
The paper presents a study of the automated control system of the underwater radio-controlled unmanned vehicle (as a prototype) which monitors the radiation in the deepwater area bottom (with the depth over 10 m), and a system of the operator-vehicle ...
A. P. Elokhin, A. A. Vasilenko, S. E. Ulin, S. .. Yuksekler, M. .. Yuksekler   +4 more
doaj   +1 more source

Redefining Optimal Coverage Path Planning for FLS‐Equipped AUVs With Deep Reinforcement Learning

Journal of Field Robotics, EarlyView.
ABSTRACT Autonomous Underwater Vehicles (AUVs) have emerged as indispensable tools for a variety of subsea tasks, from habitat monitoring and seabed mapping to infrastructure inspection and mine countermeasures. A fundamental challenge in this field is Coverage Path Planning (CPP), the problem of ensuring complete and efficient area coverage.
Lorenzo Cecchi, Alberto Topini, Alessandro Bucci, Alessandro Ridolfi   +3 more
wiley   +1 more source