Results 61 to 70 of about 1,734 (183)
Load-Reducing Characteristics of Gas Screen During Underwater Launch of the Vehicle
Shanghai Jiaotong Daxue xuebaoDuring the underwater launching process, a gas screen channel is formed near the opening of the cylinder, which can effectively reduce the high-frequency pulsation load on the surface of the vehicle exiting the cylinder. Based on the volume of fluid (VOF)
SHI Yao, LU Jiewen, DU Xiaoxu, GAO Shan, REN Jinyi
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International Journal of Advanced Robotic Systems, 2018 We address the problem of vertical air–water trans-media control of Hybrid Unmanned Aerial Underwater Vehicles in the presence of parameters uncertainty and disturbances.
Zongcheng Ma, Jinfu Feng, Jian Yang
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Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT Respiration is a key physiological process in cetaceans, closely linked to energy expenditure, behavior, and physiological state. Using drone‐based surveys, we quantified respiration patterns of southern right whale (Eubalaena australis) mother–calf pairs in southern Brazil across two reproductive seasons (2020–2021).
Jéssica Karasek +5 more
wiley +1 more source
Design of biomimetic aerial-aquatic vehicle based on soft cross-medium technology
Zhongguo Jianchuan YanjiuObjectiveThis study aims to develop a concept design for an unmanned aerial-aquatic cross-medium vehicle that can fly in the air and navigate underwater, and features repeatable medium transitions and superior hydrodynamic performance.
Lei ZHANG +4 more
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Research status of Markov theory in unmanned systems
Zhongguo Jianchuan Yanjiu, 2018 With the development of artificial intelligence technology,the missions to be performed by unmanned systems are more and more complicated,and the systems are required to complete given missions independently in an unknown environment.
YAN Zheping +4 more
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Hydrodynamics of unmanned underwater vehicles
, 2022 Remotely Operated Vehicle (ROVs) is a research and development effort, ROVs are commonly used in the oil and gas industry for pipeline inspection and maintenance. For this project, it will design ROV prototype by the CAD program and describe the equation of motion to determine the hydrodynamic forces generated by (ROVs) submerged in water, in the ...
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Journal of Marine Science and EngineeringUnderwater natural gas pipelines constitute critical infrastructure for energy transportation. Any damage or leakage in these pipelines poses serious security risks, directly threatening marine and lake ecosystems, and potentially causing operational ...
Seda Karadeniz Kartal +1 more
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Unmanned underwater vehicle design
, 2022 Denizaltılar, su altında ve yüzey seviyesinde bağımsız hareket edebilen araçlardır. Tehlikeli, gizli ve uzun sualtı aktiviteleri yapabilmek için, insansız ve cep boyutunda, uzaktan kontrol edilebilen veya otonom sualtı araçlarının geliştirilmesine ihtiyaç vardır.
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Development Status and Trend of U.S. Equipment for Underwater Special Operations
水下无人系统学报In recent years, as the western countries led by the United States have shifted their strategic focus from ocean to offshore, offshore shallow waters have become the focus of attack and defense for countries.
Zhiwei ZHANG +4 more
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Positioning of Unmanned Underwater Vehicle Based on Autonomous Tracking Buoy. [PDF]
Sensors (Basel), 2023 Li Y, Ruan R, Zhou Z, Sun A, Luo X.
europepmc +1 more source