Results 81 to 90 of about 160,342 (272)

Progress and Perspectives in 2D Piezoelectric Materials for Piezotronics and Piezo‐Phototronics

Advanced Science, EarlyView.
This review examines advancements in 2D materials, focusing on their applications in piezotronics and piezo‐phototronics. It discusses key materials like TMDs, h‐BN, and phosphorene, highlighting their unique mechanical, electronic, and optical properties.
Fengyi Pang, Pin Zhao, Hyeon Yeong Lee, Dae‐Jin Kim, Xiangchun Meng, Yong Soo Cho, Sang‐Woo Kim   +6 more
wiley   +1 more source

Is there a difference in student physical activity between a field school and a traditional classroom setting?

American Journal of Human Biology, Volume 34, Issue 12, December 2022., 2022
Abstract Objectives We compared the physical activity of nine students participating in an anthropological field school to their activity expenditures in traditional classrooms. We predicted that the students would exhibit higher physical activity during the field school due to the substantial physical requirements associated with the program compared ...
Michaela Emily Howells, Katherine L'Amour Woolard Mayfour, Taryn B. April, Richard L. Bender, James E. Loudon   +4 more
wiley   +1 more source

The Computation of All 4R Serial Spherical Wrists With an Isotropic Architecture [PDF]

Journal of Mechanical Design 125, 2 (06/2003) 275-280, 2007
A spherical wrist of the serial type with n revolute (R) joints is said to be isotropic if it can attain a posture whereby the singular values of its Jacobian matrix are all equal to sqrt(n/3). What isotropy brings about is robustness to manufacturing, assembly, and measurement errors, thereby guaranteeing a maximum orientation accuracy.
arxiv   +1 more source

Kinematic and Dynamic Analysis of the 2-DOF Spherical Wrist of Orthoglide 5-axis [PDF]

Troisi\`eme Congr\`es International. Conception et Mod\'elisation des Syst\`emes M\'ecaniques, Hammamet : Tunisie (2009), 2009
This paper deals with the kinematics and dynamics of a two degree of freedom spherical manipulator, the wrist of Orthoglide 5-axis. The latter is a parallel kinematics machine composed of two manipulators: i) the Orthoglide 3-axis; a three-dof translational parallel manipulator that belongs to the family of Delta robots, and ii) the Agile eye; a two ...
arxiv  

Shared and Unique Neural Codes for Biological Motion Perception in Humans and Macaque Monkeys

Advanced Science, EarlyView.
Cross‐species fMRI studies reveal distinct neural mechanisms for biological motion (BM) processing. In humans, the posterior superior temporal sulcus (hpSTS) selectively responds to conspecific BM, while monkeys process BM from both species in the middle temporal area (MT).
Yuhui Cheng, Yumeng Xin, Xiqian Lu, Tianshu Yang, Xiaohan Ma, Xiangyong Yuan, Ning Liu, Yi Jiang   +7 more
wiley   +1 more source

Arthroscopic Volar Extrinsic Plicature of the Volar Extrinsic Ligaments for Chronic Volar Scapholunate Instability

Arthroscopy Techniques
The scapholunate ligamentous complex consists of the scapholunate interosseous ligament and the surrounding extrinsic ligamentous system. In cases of chronic scapholunate instability, stabilizing the extrinsic ligaments is crucial.
Chul Ki Goorens, M.D., Kjell Van Royen, M.D., Andrea Atzei, M.D.   +2 more
doaj  

Wrist Sensor Fusion Enables Robust Gait Quantification Across Walking Scenarios [PDF]

arXiv, 2017
Quantifying step abundance via single wrist-worn accelerometers is a common approach for encouraging active lifestyle and tracking disease status. Nonetheless, step counting accuracy can be hampered by fluctuations in walking pace or demeanor.
arxiv  

Accurate 3D Hand Pose Estimation for Whole-Body 3D Human Mesh Estimation [PDF]

arXiv, 2020
Whole-body 3D human mesh estimation aims to reconstruct the 3D human body, hands, and face simultaneously. Although several methods have been proposed, accurate prediction of 3D hands, which consist of 3D wrist and fingers, still remains challenging due to two reasons.
arxiv  

High‐Conductivity, Self‐Healing, and Adhesive Ionic Hydrogels for Health Monitoring and Human‐Machine Interactions Under Extreme Cold Conditions

Advanced Science, EarlyView.
This study presents an ionic conductive hydrogel (ICH) with excellent conductivity, self‐healing, self‐adhesion, and long‐term stability under extreme cold conditions. It shows significant potential for non‐invasive, continuous health monitoring, conformally adhering to skin without signal crosstalk, enabling real‐time, high‐fidelity signal ...
Fei Han, Shumeng Chen, Fei Wang, Mei Liu, Jiahui Li, Hao Liu, Yanshen Yang, Haoqing Zhang, Dong Liu, Rongyan He, Wentao Cao, Xiaochuan Qin, Feng Xu   +12 more
wiley   +1 more source

W. W. Greulich and S. I. Pyle: Radiographic atlas of skeletal development of the hand and wrist. 2nd edition. I volume-atlante di 256 pagine. Stanford University Press, Stanford, California, 1959. [PDF]

, 1959
G. Iannaccone
openalex   +1 more source