Results 131 to 140 of about 2,866,947 (383)

Quintessence and gravitational waves

Physical Review D, 2000
We investigate some aspects of quintessence models with a non-minimally coupled scalar field and in particular we show that it can behave as a component of matter with $-3 \lesssim P/\rho \lesssim 0$. We study the properties of gravitational waves in this class of models and discuss their energy spectrum and the cosmic microwave background anisotropies
Riazuelo, Alain, Uzan, Jean-Philippe
openaire   +2 more sources

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

Ensemble of deep convolutional neural networks for real-time gravitational wave signal recognition [PDF]

, 2022
C Ma, Wei Wang, He Wang, Zhoujian Cao
openalex   +1 more source

Magnetic Field Driven Microrobot Based on Hydrogels

Advanced Robotics Research, EarlyView.
Hydrogel‐based magnetic microrobots synergize remote magnetic control with the biocompatibility of flexible hydrogels, emerging as promising tools for minimally invasive biomedicine. This enables remotely controllable, untethered navigation within complex biological microenvironments.
Juncai Song, Yubing Guo
wiley   +1 more source

Search for Gravitational-wave Inspiral Signals Associated with Short Gamma-ray Bursts During LIGO's Fifth and Virgo's First Science Run [PDF]

, 2010
Progenitor scenarios for short gamma-ray bursts (short GRBs) include coalescenses of two neutron stars or a neutron star and black hole, which would necessarily be accompanied by the emission of strong gravitational waves.
Abadie, J., Abbott, B. P., Abbott, R., Adhikari, Rana X., Ajith, P., Anderson, S. B., Araya, M., Aso, Y., Ballmer, S., Betzwieser, J., Billingsley, G., Black, E., Blackburn, J. K., Bork, R., Brooks, A. F., Cannon, K. C., Cardenas, L., Cepeda, C., Chalermsongsak, T., Chatterji, S., Chen, Y., Coyne, D. C., Daudert, B., DeSalvo, R., Drever, R. W. P., Driggers, J., Ehrens, P., Etzel, T., Fazi, D., Gustafson, E. K., Hanna, C., Heefner, J., Heptonstall, A., Hodge, K. A., Ivanov, A., Kalmus, P., Kells, W., Keppel, D. G., King, P. J., Kondrashov, V., Kozak, D., Lazzarini, A., Lei, M., Lindquist, P. E., Mageswaran, M., Mailand, K., Mak, C., Maros, E., Marx, J. N., McIntyre, G., Meshkov, S., Mino, Y., Mitra, S., Miyakawa, O., Nash, T., Ogin, G. H., Patel, P., Pedraza, M., Robertson, N. A., Sannibale, V., Searle, A. C., Seifert, F., Sengupta, A. S., Smith, S. R., Somiya, K., Stochino, A., Taylor, R., Thorne, K. S., Torrie, C. I., Turner, L., Vallisneri, M., Vass, S., Villar, A., Wallace, L., Ward, R. L., Weinstein, Alan J., Wen, L., Whitcomb, S. E., Willems, P. A., Yamamoto, H., Yeaton-Massey, D., Zhang, L., Zweizig, J.   +82 more
core  

Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter

Advanced Robotics Research, EarlyView.
A novel multidirectional motion strategy on the water surface based on a single exciter is proposed, and a single‐exciter single‐plate module is developed for actuation. The driving forces generation mechanism of the module is revealed from the perspective of the asymmetric surface wave field.
Haoxuan He, Dehong Wang, Jing Li, Shijing Zhang, Yingxiang Liu   +4 more
wiley   +1 more source

Can a gravitational wave and a magnetic monopole coexist?

, 1997
We investigate the behavior of small perturbations around the Kaluza-Klein monopole in the five dimensional space-time. We find that the even parity gravitational wave does not propagate in the five dimensional space-time with Kaluza-Klein monopole ...
Kerner R., Osamu Abe, Osamu Tabata, Polyakov A. M., Sundaresan M. K.   +4 more
core   +2 more sources

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Gravitational Waves in G4v [PDF]

, 2015
Gravitational coupling of the propagation four-vectors of matter wave functions is formulated in flat space-time. Coupling at the momentum level rather than at the "force-law" level greatly simplifies many calculations.
Mead, Carver
core   +1 more source

Study of the thrust response characteristics of Hall Micro Thruster

Results in Physics
An advanced Watt class Hall Micro Thruster (HMT) is offered for Space Gravitational Wave Detection (SGWD), and an investigation has been conducted on its start-up, shutdown, rise, and fall response times.
Liexiao Dong, Shixu Lu, Ning Guo, Shengtao Liang, Jianfei Long, Wei Luo, Luxiang Xu   +6 more
doaj   +1 more source