Results 31 to 40 of about 4,226,830 (170)

Allometric patterns in Rhamphorhynchus muensteri and their role in the paleoecology, life habits, and taxonomic framework of pterosaurs

Journal of Anatomy, EarlyView.
The Graphical Abstract ilustrates the different allometric pattern within different Pterosauria groups, highlighting how the allometry influences the flight and habits of Pterosauria. Abstract Pterosaurs were the first vertebrates to achieve powered flight, a result of various unique anatomical adaptations, and significant morphological diversity ...
Gabriela Menezes Cerqueira, João Lucas Da Silva, Ingmar Werneburg, Mario Bronzati, Alex Sandro Schiller Aires, Felipe L. Pinheiro, Rodrigo Temp Müller   +6 more
wiley   +1 more source

Numerical Study on the Influence of Rudder Fillets on Submarine Wake Field and Noise Characteristics

Journal of Marine Science and Engineering
The submarine rudder configuration and arrangement significantly impact its hydrodynamic performance. This paper takes the SUBOFF standard submarine model as the research object, constructs a geometrically parameterized rudder fillet structure based on ...
Hao Yuan, Eryun Chen, Xingsheng Liu, Ailing Yang   +3 more
doaj   +1 more source

The affective nature of affective polarization: Evidence from physiological and self‐reported responses to US politicians

Political Psychology, Volume 47, Issue 4, August 2026.
Abstract What is the nature of affective partisan polarization? We answer this question in a preregistered laboratory study conducted in the United States measuring partisans' affective reactions to static images of US politicians with self‐reports and physiological indicators of valence and arousal.
Kevin Arceneaux, Bert N. Bakker
wiley   +1 more source

Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs

Advanced Science, Volume 13, Issue 30, 28 May 2026.
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng, Shaokun Wang, Jiehan Zou, Guiwen Shi, Zhongxue Gan, I‐Ming Chen, Guo‐Niu Zhu   +6 more
wiley   +1 more source

La version X de La vie de sainte Marie l'égyptienne. Mise en prose et catéchèse

, 1982
De Rudder Orlando. La version X de La vie de sainte Marie l'égyptienne. Mise en prose et catéchèse. In: Médiévales, n°1, 1982. pp.
De Rudder, Orlando
core   +1 more source

Experimental and numerical study of dynamic characteristic of a complex all-movable rudder system

Journal of Low Frequency Noise, Vibration and Active Control, 2018
Modal analysis and flutter computation of a complex tail cabin system including six all-movable rudders for hypersonic flight vehicle was studied in this paper.
Yuguang Bai, Wei Qian, Xiangyan Chen, Taojun Lu   +3 more
doaj   +1 more source

Missionʼs Rudder and Sails: Analysing the Governmentʼs Entrepreneurial Functions Across Supply and Demand in Chinaʼs New Energy Vehicle Industry

Asia &the Pacific Policy Studies, Volume 13, Issue 2, May 2026.
ABSTRACT Mission‐oriented innovation has emerged as a novel paradigm for tackling pressing societal and environmental challenges. Grounded in the theory of the entrepreneurial state, this study contends that governments fulfil various ‘entrepreneurial functions’—acting as directional leader, market shaper, standard setter, fund provider, risk‐taker ...
Zhang Huiying, Li Yue
wiley   +1 more source

Numerical Investigation of Ventilated Cavities Around a Rudder-Equipped Axisymmetric Body

Fluids
As an efficient drag reduction technique, ventilated cavity technology demonstrates significant application in underwater launch systems. This study employs numerical simulations to systematically examine the ventilated cavity flow characteristics and ...
Wanyun Xu, Yipeng Li, Renfang Huang, Weixiang Ye, Liang Hao, Wei Jiang   +5 more
doaj   +1 more source

Reinforcement Learning-Based Sliding Mode Control of Underwater Vehicles with Bow Rudders and X-Stern Rudders

Journal of Marine Science and Engineering
This paper addresses the motion control for an x-rudder underwater vehicle, which features a bow rudder and four independent x-shaped stern rudders. To achieve coordinated operation of bow and stern rudders of the x-rudder underwater vehicle, the motion ...
Hao Ren, Jie Liu, Jian Gao, Guang Pan, Haixu Ding   +4 more
doaj   +1 more source

Refinement of a Framework for Moving Aircraft River Velocimetry (MARV) and Application to Particle Tracking Along Alaskan Rivers

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Information on river velocities enhances understanding flood hazards, evaluating habitat conditions, and predicting the transport of floating materials. In this follow‐up study, we used data from two new sites, one with a more complex morphology and the other with a lower suspended sediment concentration, to provide further evidence that ...
Carl J. Legleiter, Paul J. Kinzel, Mark Laker, Jeffrey S. Conaway   +3 more
wiley   +1 more source