Results 21 to 30 of about 925 (218)
Marine Mammal Science, Volume 38, Issue 3, Page 941-958, July 2022., 2022 Abstract Fluctuations in aggressive behavior of group‐living species can reflect social conflict and competition for resources faced by individuals throughout their lifespan and can negatively impact survival and reproduction. In marine mammals, where social interactions are difficult to observe, tooth rake marks can be used as an indicator of received
Charli Grimes +7 more
wiley +1 more source
Advances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021 This work aims to achieve the 6000t compression‐shear test machine frame design with the lightweight. The force condition of the compression‐shear test machine frame under limited working conditions is first analyzed, and the static analysis of the compression‐shear test machine frame is performed using ABAQUS.
Genshang Wu +8 more
wiley +1 more source
Study on vertical motion reduction of a trimaran based on collaborative controlled appendages
International Journal of Advanced Robotic Systems, 2020 In recent years, the trimaran as a novel ship has been greatly developed. The subsequent large vertical motion needs to be studied and resolved. In this article, an experimental study for a trimaran vertical stabilization control is carried out.
Zhilin Liu +4 more
doaj +1 more source
Characteristics of Slamming Pressure and Force for Trimaran Hull [PDF]
Journal of Marine Science and Engineering, 2021 In this paper, the characteristics of the impact pressure and force of a trimaran section was studied by Computational Fluid Dynamics (CFD). The time domain features of the slamming pressure or force showed a strong correlation with the penetration depth regardless of the specific ways of water entry.
Zhe Sun +6 more
openaire +4 more sources
Numerical study of trimaran wave load based on time-domain Rankine method
Brodogradnja, 2023 Due to the complex fluid interference between outrigger and main hull, it is difficult to predict the trimaran load fluctuation accurately in different marine environments.
Haoyun Tang, Qian Wan, Huilong Ren
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 The trimaran is an advanced ship with high hydrodynamic performance, but the study of its electromagnetic characteristics and Doppler spectrum is insufficient. This study presents a new procedure for evaluating the scattering echo and Doppler spectrum of
Yuxin Deng +3 more
doaj +1 more source
A Method of a Trimaran Vertical Movements Reduction Control and Hardware Realization
IEEE Access, 2019 The vertical movements of a trimaran, which can produce a vertical acceleration, always make people feel seasickness and cause equipment damage on the board. This paper presents a method of a trimaran vertical stabilization control.
Bowen Zeng, Yang Song, Linhe Zheng
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Clinical &Experimental Allergy, Volume 50, Issue 10, Page 1140-1147, October 2020., 2020 Abstract Background Smoking worsens underlying asthma inflammation and also induces resistance to inhaled corticosteroids (ICS). Small airways dysfunction measured by impulse oscillometry (IOS) is associated with worse control. Objectives We investigated the effects on small airways of adding long‐acting beta‐agonist (LABA) alone or with long‐acting ...
Sunny Jabbal +2 more
wiley +1 more source
Vertical Stabilization Control for Trimaran Based on Resultant Force and Moment Distribution
IEEE Access, 2019 The vertical movement of a trimaran caused by external disturbances during sailing, may lead to seasickness of the passengers and damage of the equipment onboard. Based on computational fluid dynamics (CFD) calculations, the hydrodynamic coefficients are
Zhilin Liu +3 more
doaj +1 more source
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 Stability of a high‐speed craft is an essential matter, and porpoising is one of the most critical instabilities that could occur in some planing hulls due to inappropriate design. In this paper, the porpoising phenomenon and variation of step location yielding resistance reduction are studied through experimental and numerical methods.
Sayyed Mahdi Sajedi +2 more
wiley +1 more source