Results 61 to 70 of about 157,710 (277)

HiWASE: instrument alignments [PDF]

, 2010
Alignment offsets between anemometers and motion-sensing instruments are a source of uncertainty for eddy correlation flux measurements made at sea. A previously described laboratory technique (Brooks, 2008) has been utilised to determine the pitch, roll
Pascal, R.W., Prytherch, J., Yelland, M.J.   +2 more
core  

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

Advanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello, Tian Lan, Salaheldin Hassan, Maximilian Leutschafft, Erdem Ekinci, Sophie F. Armanini, Mirko Kovac, Basaran Bahadir Kocer   +7 more
wiley   +1 more source

Three-axis controller Patent [PDF]

, 1967
Three-axis controller operated by hand-wrist motion for yaw, pitch, and roll ...
Menefee, E. O., Puccinelli, A. A.
core   +1 more source

A Strain Decoupling Packaging Strategy for High‐Fidelity Ultrathin Silicon Shape Sensors for Soft Medical Robotics

Advanced Science, EarlyView.
Reliable soft sensors are essential for precise control in soft medical robots such as endoscopes. We developed ultrathin silicon piezoresistive sensors and their oil‐lubricated slidable packaging, which enables high‐fidelity shape sensing of silicon gauges by mechanically isolating the sensing element within a dual‐layer film.
Hao Liu, Masahito Takakuwa, Michitaka Yamamoto, Yiwen Wang, Tomoyuki Yokota, Takao Someya, Toshihiro Itoh, Seiichi Takamatsu   +7 more
wiley   +1 more source

AI Anomaly-Based Deepfake Detection Using Customized Mahalanobis Distance and Head Pose with Facial Landmarks

Applied Sciences
The development of artificial intelligence has inevitably led to the growth of deepfake images, videos, human voices, etc. Deepfake detection is mandatory, especially when used for unethical and illegal purposes.
Cosmina-Mihaela Rosca, Adrian Stancu
doaj   +1 more source

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai, Yefeng Yang, Tao Huang, Boyang Li   +3 more
wiley   +1 more source

Structural Characteristics of Wind Turbines with Different Blade Materials Under Yaw Condition

Energies
The uneven distribution of airflow on the blade surface of a yaw wind turbine triggers a complex non-constant flow, resulting in turbine flow field operation disorder, which, in turn, affects the structural field.
Huanran Guo, Liru Zhang, Jing Jia, Ding Du, Anhao Wei, Tianhao Liu   +5 more
doaj   +1 more source

Further Study on the Effects of Wind Turbine Yaw Operation for Aiding Active Wake Management

Applied Sciences, 2020
Active wake management (AWM) via yaw control has been discussed in recent years as a potential way to improve the power production of a wind farm. In such a technique, the wind turbines will be required to work frequently at misaligned yaw angles in ...
Juchuan Dai, Xin Yang, Wenxian Yang, Guoqiang Gao, Mimi Li   +4 more
doaj   +1 more source

Qualitative yaw stability analysis of free-yawing downwind turbines [PDF]

Wind Energy Science, 2019
This article qualitatively shows the yaw stability of a free-yawing downwind turbine and the ability of the turbine to align passively with the wind direction using a model with 2 degrees of freedom.
G. Wanke, M. H. Hansen, T. J. Larsen
doaj   +1 more source

Optic flow based perception of two-dimensional trajectories and the effects of a single landmark. [PDF]

, 2001
It is well established that human observers can detect their heading direction on a very short time scale on the basis of optic flow (500ms; Hooge et al., 2000). Can they also integrate these perceptions over time to reconstruct a 2D trajectory simulated
Bertin, R.J.V., Israël, I.
core