Results 41 to 50 of about 429,258 (272)
High-speed Underwater Wireless Optical Communication: Potential, Challenges, and Possible Solutions [PDF]
, 2017 Traditional underwater communication systems rely on acoustic modems due their reliability and long range. However their limited data rates, lead to the exploration of alternative techniques.
Alouini, Mohamed-Slim
core
Advanced Engineering Materials, EarlyView.Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat +6 more
wiley +1 more source
ADOS-CFAR Algorithm for Multibeam Seafloor Terrain Detection
International Journal of Distributed Sensor Networks, 2016 To solve the false terrain problem caused by the tunnel effect in the conventional multibeam seafloor terrain detection, a detection method of multibeam seafloor terrain based on the ADOS-CFAR (Amplitude Dichotomy Order-Statistics Constant False Alarm ...
Weidong Du +4 more
doaj +1 more source
Autonomous Underwater Robot Fuzzy Motion Control System with Parametric Uncertainties
Designs, 2021 The paper describes the design of a fuzzy motion control system of an autonomous underwater vehicle. A mathematical model of the underwater vehicle is synthesized.
Anton Zhilenkov +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel +6 more
wiley +1 more source
MIMO Underwater Acoustic Communications in Ports and Shallow Waters at Very High Frequency
Journal of Sensor and Actuator Networks, 2013 Hermes is a Single-Input Single-Output (SISO) underwater acoustic modem that achieves very high-bit rate digital communications in ports and shallow waters. Here, the authors study the capability of Hermes to support Multiple-Input-Multiple-Output (MIMO)
Gaultier Real +2 more
doaj +1 more source
Underwater Survey for Oil and Gas Industry: A Review of Close Range Optical Methods
Remote Sensing, 2021 In both the industrial and scientific fields, the need for very high-resolution cartographic data is constantly increasing. With the aging of offshore subsea assets, it is very important to plan and maintain the longevity of structures, equipment, and ...
Bertrand Chemisky +3 more
doaj +1 more source
Energy-Efficient Collision Avoidance MAC Protocols for Underwater Sensor Networks: Survey and Challenges [PDF]
, 2021 Faisal Abdulaziz Alfouzan
openalex +1 more source
Advanced Engineering Materials, EarlyView.Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar +5 more
wiley +1 more source
A Side-Scan Sonar Seabed Target Detection Algorithm Based on YOLOv8-RDE
International Journal of Distributed Sensor NetworksSide-scan sonar target detection is crucial in underwater exploration, but traditional algorithms suffer from inaccurate positioning, slow detection, and poor model generalization.
Haoming Ji, Daqi Zhu, Mingzhi Chen
doaj +1 more source