Results 31 to 40 of about 387 (176)

Slowing of acoustic waves in electrorheological and string-fluid complex plasmas

New Journal of Physics, 2020
The PK-4 laboratory consists of a direct current plasma tube into which microparticles are injected, forming a complex plasma. The microparticles acquire many electrons from the ambient plasma and are thus highly charged and interact with each other.
M Schwabe, S A Khrapak, S K Zhdanov, M Y Pustylnik, C Räth, M Fink, M Kretschmer, A M Lipaev, V I Molotkov, A S Schmitz, M H Thoma, A D Usachev, A V Zobnin, G I Padalka, V E Fortov, O F Petrov, H M Thomas   +16 more
doaj   +1 more source

Blow-up phenomena for a damped wave equation with logarithmic source term and variable-exponents [PDF]

Theoretical and Applied Mechanics
This paper investigates the wave equation with variable-exponent nonlinearity and logarithmic source term, given by the following: utt − Δu + $ aut|ut|^{m(・)−2} $ = $ bu|u|^{p(・)−2} $ ln |u|, where a and b are positive constants, and the functions m(・)
Trigui Mohammed Y., Saadaoui Mohamed
doaj   +1 more source

Reynolds Number Effects in the Flow of a Vočadlo Electrorheological Fluid in a Curved Gap

International Journal of Applied Mechanics and Engineering, 2017
Many electrorheological fluids (ERFs) as fluids with micro-structure demonstrate a non-Newtonian behaviour. Rheometric measurements indicate that some flows of these fluids may by modelled as the flows of a Vočadlo ER fluid.
A. Walicka, J. Falicki
doaj   +1 more source

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, Volume 66, Issue 7-8, September 2026.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Development of Novel Hydraulic 3D Printed Actuator Using Electrorheological Fluid for Robotic Endoscopy

Actuators
Endoscopy has made a significant and noteworthy contribution to the field of medical science and technology. Nevertheless, its potential remains constrained due to the limited availability of rigid or flexible endoscopes.
Fabian Sadi, Jan Holthausen, Jan Stallkamp, Marius Siegfarth   +3 more
doaj   +1 more source

Exploring the Use and Impact of Composite Materials in Robotics: A Systematic Review

Journal of Field Robotics, Volume 43, Issue 6, Page 4037-4060, September 2026.
ABSTRACT Lightweight and high‐strength materials are important in robotics, as structural design impacts efficiency, payload capacity, and energy consumption. Composite materials, with their superior stiffness‐to‐weight ratios and multifunctional properties, offer clear advantages over conventional metals and polymers.
Doglas Negri, Gabriela Wessling Oening, Felipe Augusto Carvalho de Faria, Sarah Maria Schroeder, Ricardo De Medeiros   +4 more
wiley   +1 more source

Modular Geometric Properties in Variable Exponent Spaces

Mathematics, 2022
Much has been written on variable exponent spaces in recent years. Most of the literature deals with the normed space structure of such spaces. However, because of the variability of the exponent, the underlying modular structure of these spaces is ...
Mohamed A. Khamsi, Osvaldo D. Méndez, Simeon Reich   +2 more
doaj   +1 more source

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

Advanced Engineering Materials, Volume 28, Issue 16, 19 August 2026.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim, Sohee John Yoon, Yong‐Lae Park   +2 more
wiley   +1 more source

Electrorheological polishing performance of cerium-doped titanium dioxide particles

Frontiers in Materials, 2022
Electrorheological (ER) polishing as a new type of polishing technique has flexibility and controllability. However, ER polishing cannot be widely used in actual processing because the present ER polishing fluid is usually prepared by simple mixing ...
Xufeng Hu, Xufeng Hu, Han Sun, Han Sun, Zhiyao Yang, Xiaopeng Zhao, Jianbo Yin, Jianbo Yin   +7 more
doaj   +1 more source

Flow of electrorheological fluid under conditions of slip on the boundary

Abstract and Applied Analysis, 2006
We study a mathematical model describing flows of electrorheological fluids. A theorem of existence of a weak solution is proved. For this purpose the approximating-topological method is used.
R. H. W. Hoppe, M. Y. Kuzmin, W. G. Litvinov, V. G. Zvyagin   +3 more
doaj   +2 more sources