Results 71 to 80 of about 15,162 (218)

Mating, Sociosexual, and Nursing Behavior of Wild East Asian Finless Porpoises in the Seto Inland Sea, Japan

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT The mating and sociosexual (nonconceptive) behaviors of narrow‐ridged finless porpoises (Neophocaena asiaeorientalis) have been extensively studied in captivity. However, such behaviors may differ significantly from those that have developed in wild populations. Drone videos captured the behaviors of wild finless porpoises including a total of
Manuel Eduardo L. de la Paz, Hajime Sato, Takumi Oyama, Angelo Macario, Yoichi Sakai   +4 more
wiley   +1 more source

Integrating Composite Materials Throughout the Military Sector: A Review

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
Composite materials have attracted considerable attention in the defense industry owing to their distinctive properties and wide‐ranging applications. This systematic review examines the current research landscape and recent advancements in the application of composite materials for defense purposes.
Mikru Birhan, Besufekad Negash, Temesgen Batu, Yobel Abunu, Mohammad Rezwan Habib   +4 more
wiley   +1 more source

Deep Learning Test Platform for Maritime Applications: Development of the eM/S Salama Unmanned Surface Vessel and Its Remote Operations Center for Sensor Data Collection and Algorithm Development

Remote Sensing
In response to the global megatrends of digitalization and transportation automation, Turku University of Applied Sciences has developed a test platform to advance autonomous maritime operations.
Juha Kalliovaara, Tero Jokela, Mehdi Asadi, Amin Majd, Juhani Hallio, Jani Auranen, Mika Seppänen, Ari Putkonen, Juho Koskinen, Tommi Tuomola, Reza Mohammadi Moghaddam, Jarkko Paavola   +11 more
doaj   +1 more source

Disturbance-Observer-Based Sliding Mode Control Design for Nonlinear Unmanned Surface Vessel With Uncertainties

IEEE Access, 2019
Unmanned surface vessel (USV) has been widely applied due to its advantages in the maritime security inspection and resources exploration. Good trajectory tracking performance is a critical issue in the control design of USV.
Zheng Chen, Yougong Zhang, Youming Zhang, Yong Nie, Jianzhong Tang, Shiqiang Zhu   +5 more
doaj   +1 more source

Radiation heating in selected NERVA engine components [PDF]

, 1972
The role of heating from nuclear radiation in design of the NERVA engine is treated. Some components are subjected to very high gamma heating rates in excess of 0.5 Btu/cubic inch/sec in steel in the primary nozzle or 0.25 Btu/cubic inch/sec in aluminum ...
Courtney, J. C., Hertelendy, N. A., Lindsey, B. A.   +2 more
core   +1 more source

Autonomous Antidisturbance Flight Control of Tilt‐Rotor UAV in Complex Environment of Ultralow Altitude

International Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.
In our work, an algorithm is presented for tilt‐rotor UAV clusters in an unknown complex environment, which addresses the challenge of navigating and positioning in complex unknown environments without external navigation and positioning information.
Liben Yang, Yu Li, Jianwen Tian, Dong Wang, Mohammad Rezwan Habib   +4 more
wiley   +1 more source

Marine survey unmanned surface vessel:platform design and application

Dianxin kexue, 2021
Marine survey unmanned surface vessel (USV) has a wide range of applications.However, the attitude of USV is easily affected by wind, waves, currents and floating debris, which may cause structural damage or low precision observation.Double hull and wide
Weiping WANG, Xi HE, Chao DONG, Bing ZHENG, Xue LI   +4 more
doaj   +2 more sources

Multi-vessel target tracking with camera fusion for unmanned surface vehicles

International Journal of Naval Architecture and Ocean Engineering
With the decreasing availability of sailors, there has been an increasing focus on the development of autonomous ships. Among the various components of autonomous ships, automatic recognition systems that can replace human vision are a crucial area of ...
Jeong-Ho Park, Myung-Il Roh, Hye-Won Lee, Yeong-Min Jo, Jisang Ha, Nam-Sun Son   +5 more
doaj   +1 more source

Space power technology into the 21st Century [PDF]

, 1984
The space power systems of the early 21st century are discussed. The capabilities which are anticipated to evolve from today's state of the art and the technology development programs presently in place or planned for the remainder of the century are ...
Faymon, K. A., Fordyce, J. S.
core   +2 more sources

Transfer Learning With CLIP for Intelligent Concrete Crack Detection in Structural Health Monitoring

Shock and Vibration, Volume 2026, Issue 1, 2026.
Automated detection of surface cracks in concrete structures is a fundamental requirement for effective structural health monitoring and preventive maintenance. Conventional computer vision and convolutional neural network‐based approaches often suffer from limited generalization under variations in illumination, surface texture, and crack morphology ...
Md. Siam Ansary, Marco Civera
wiley   +1 more source