Results 131 to 140 of about 2,744,891 (356)

Polyacrylic Acid Copolymers as Adhesion‐Adapted Model Materials for Cleaning Tests

Macromolecular Chemistry and Physics, Volume 224, Issue 1, January 2023., 2023
Acrylic acid (AA) copolymers adhere physically to metallic surfaces and are used for production of layers which shall mimic real filmic contamination layers for cleaning tests. To further adjust the polymers to the reference contaminations the polarity of the copolymers is varied not only by the percentage of carboxy groups but also by additional ...
Susanne Höhne, Carolin Böhm, Vincent Eisenrauch, Christian Girsule, Enrico Fuchs, Marc Mauermann, Petra Uhlmann   +6 more
wiley   +1 more source

Advances in 3D and 4D Printing of Soft Robotics and Their Applications

Advanced Intelligent Systems, EarlyView.
This article summarizes the development of 3D‐printed soft robotics in the recent decade. The article discusses the printing capabilities of different additive manufacturing technologies in terms of soft polymers, multimaterial printability, soft robotic printing, and 4D printing.
Hao Liu, Changchun Wu, Senyuan Lin, James Lam, Ning Xi, Yonghua Chen   +5 more
wiley   +1 more source

The Detection of Gravitational Waves [PDF]

, 2003
33 pages, 12 figures, LaTeX2e, Springer style files --included. For Proceedings of the ERE-2001 Conference (Madrid, September 2001)
openaire   +3 more sources

Toward Autonomous Self‐Healing in Soft Robotics: A Review and Perspective for Future Research

Advanced Intelligent Systems, EarlyView.
In this article, five different phases (damage detection, cleaning, damage closure, material healing, and healing assessment) are investigated to have an autonomous self‐healing at the system level with the focus on soft robotics. It delves into the importance of each phase, why and where they matter, and reviews relevant technologies that enable ...
Seyedreza Kashef Tabrizian, Seppe Terryn, Bram Vanderborght   +2 more
wiley   +1 more source

Simultaneous monitoring of activity and heart rate variability in depressed patients: A pilot study using a wearable monitor for 3 consecutive days

Neuropsychopharmacology Reports, Volume 42, Issue 4, Page 457-467, December 2022., 2022
By using a wearable sensor we examined 3‐dimensional acceleration and heart rate variability (HRV) simultaneously in depressive episode of mood disorders. We found reduced activity and altered HRV indices in depressed patients, compared with healthy participants, particularly in males. Moreover, we found that sympathetic load during sleep significantly
Norie Koga, Yoko Komatsu, Ryo Shinozaki, Ikki Ishida, Yusuke Shimizu, Sonoko Ishimaru, Hiroshi Kunugi   +6 more
wiley   +1 more source

Research on High-Stability Composite Control Methods for Telescope Pointing Systems under Multiple Disturbances

Sensors
During the operation of space gravitational wave detectors, the constellation configuration formed by three satellites gradually deviates from the ideal 60° angle due to the periodic variations in orbits.
Rui Zhang, Kai Zhao, Sijun Fang, Wentong Fan, Hongwen Hai, Jian Luo, Bohong Li, Qicheng Sun, Jie Song, Yong Yan   +9 more
doaj   +1 more source

Design and Analysis for a Diving‐Beetle‐Inspired Swimming Robot with Multi‐Flexible Appendages

Advanced Intelligent Systems, EarlyView.
This article presents a bionic underwater robot inspired by the swimming behavior of diving beetles. The robot features flexible appendages and a specialized motion controller to mimic the beetle's swimming gaits. Extensive experiments show improved thrust, speed, and maneuverability.
Xinyi Gao, Zhenlin Jin, Lin Liang, Zhipeng Hu, Kai He, Fengran Xie, Qiyang Zuo   +6 more
wiley   +1 more source

Multi-optimization for thermal deformation of gravitational wave telescope based on CFRP characteristics

Scientific Reports
Gravitational wave telescope place extremely high demands on structural thermal deformation, making material selection a critical issue. Carbon fiber reinforced polymer (CFRP) is an ideal choice for the support structure of telescope due to its low ...
Bohong Li, Yong Yan, Jian Luo, Sijun Fang, Rui Zhang, Hongwen Hai, Yehao Cao   +6 more
doaj   +1 more source

Interaction of light with gravitational waves [PDF]

arXiv, 2013
The physical properties of electromagnetic waves in the presence of a gravitational plane wave are analyzed. Formulas for the Stokes parameters describing the polarization of light are obtained in closed form. The particular case of a constant amplitude gravitational wave is worked out explicitly.
arxiv  

Magnetized gravitational waves

Physical Review D, 2001
We investigate the influence of cosmic magnetic fields on gravitational wave perturbations, and find exact solutions on large scales. We show that a large-scale magnetic field can generate large-scale non-decaying gravitational waves. In the general case where gravitational waves are generated by other mechanisms, a large-scale magnetic field ...
Maartens, R, Tsagas, CG, Ungarelli, C
openaire   +4 more sources