Results 51 to 60 of about 38,288 (261)

Current-Driven Kink Instability in Magnetically Dominated Rotating Relativistic Jet

EPJ Web of Conferences, 2013
We have investigated the influence of jet rotation and differential motion on the linear and nonlinear development of the current-driven (CD) kink instability of force-free helical magnetic equilibria via threedimensional relativistic magnetohydrodynamic
Mizuno Yosuke, Lyubarsky Yuri, Hardee Philip E., Nishikawa Ken-Ichi   +3 more
doaj   +1 more source

An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots

Advanced Functional Materials, EarlyView.
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese, Bokeon Kwak, Gaia de Marzo, Giulia Coco, Valentina Antonaci, Leonardo Lamanna, Massimo De Vittorio, Dario Floreano, Mario Caironi   +8 more
wiley   +1 more source

Upwelling and Coastal Jets in a Continuously Stratified Ocean [PDF]

Journal of Physical Oceanography, 1973
Abstract A simple, linear, two-dimensional, f-plane model of coastal upwelling in a continuously stratified ocean is investigated. The transient response of the fluid to an impulsively applied alongshore wind stress, the nature of the approach to a steady state, and the final steady state flow are studied.
openaire   +1 more source

An Electrowetting Pump

Advanced Functional Materials, EarlyView.
A tubular electrowetting pump moves alternating droplets through a millimeter‐wide channel in discrete, reversible steps, functioning as a fluidic stepper motor. With no moving parts and electrodes insulated from the liquid, it delivers silent, accurate flow. Flexibility allows the pump to be woven directly into textiles for wearable, medical, and soft‐
Robert Hennig, Herbert Shea
wiley   +1 more source

On the Origin and Nature of Double-Double Radio Galaxies

Galaxies
Double-double radio galaxies (DDRGs) display inner and outer jets or lobes thought to result from intermittent accretion. Due to randomly triggered accretion events, the lifetime of the retriggered jet is not expected to have any connection to the time ...
David Garofalo, Zhiyuan Liu, Atticus V. Magerko   +2 more
doaj   +1 more source

Soft drop groomed jet angularities at the LHC

Physics Letters B, 2019
Jet angularities are a class of jet substructure observables where a continuous parameter is introduced in order to interpolate between different classic observables such as the jet mass and jet broadening.
Zhong-Bo Kang, Kyle Lee, Xiaohui Liu, Felix Ringer   +3 more
doaj   +1 more source

Design and Characterization of a Two‐Dimensional Soft Array Based on Cooperative Dielectric Elastomer Actuators

Advanced Functional Materials, EarlyView.
A fully polymeric two‐dimensional array of Dielectric Elastomers enables self‐sensing, cooperative actuation, and large‐stroke operation in a DE‐based autonomous conveyor. Based only on voltage and current measurements at actuator level, the system detects the presence of a ball and subsequently drives it toward a target position.
Saverio Addario, Alberto Priuli, Giovanni Soleti, Sebastian Gratz‐Kelly, Benjamin Zemlin, Stefan Seelecke, Gianluca Rizzello   +6 more
wiley   +1 more source

Numerical Study on Pulsed Jet Coupling Effect and Projectile Pitching Motion

Space: Science & Technology
The pulsed jet with direct force control can provide a fast and environment-free control scheme. However, a complex jet interference occurs during the establishment and decay of the pulsed jet.
Xiaosheng Wu, Haozhen Zhang, Yaofeng Liu, Yuwei Liu   +3 more
doaj   +1 more source

Boosting Conversion Efficiency in Zn3P2/InP Solar Cells Via Nanoscale Junction Engineering

Advanced Functional Materials, EarlyView.
This study demonstrates the efficacy of selective area epitaxy (SAE) in enhancing the conversion efficiency of a Zn3P2${\rm Zn}_3{\rm P}_2$/InP heterojunction solar cell. The impact of the SAE pattern dimensions on the performance parameters is investigated. Small size opening limits Jsc because of current crowding whereas large size opening limits Voc
Raphael Lemerle, Valerio Piazza, Andrea Filippo, Melanie Micali, Luna Warzawa, Thomas Hagger, Kamil Wodzislawski, Julien Hurni, Valentin Biselli, Ioannis Kalogerakis, Konstantinos Rogdakis, George Viskadouros, Emmanuel Kymakis, Esther Alarcon‐Llado, Anna Fontcuberta i Morral   +14 more
wiley   +1 more source

Laser target using continuous supersonic jet in vacuum

EPJ Web of Conferences, 2013
For an extreme ultraviolet (EUV) light source, Sn plasmas, which can produce a strong radiation with high conversion efficiency at 13.5 nm, attract attention. The purpose of this study is to establish technology to form and recover a tin vapor supersonic
Ogata Yujin, Takahashi Kazumasa, Kuwabara Hajime, Nakajima Mitsuo, Horioka Kazuhiko   +4 more
doaj   +1 more source