Results 51 to 60 of about 321,360 (287)

Nonlinear elliptic problems with the method of finite volumes

Differential Equations and Nonlinear Mechanics, 2006
We present a finite volume discretization of the nonlinear elliptic problems. The discretization results in a nonlinear algebraic system of equations.
Sanjay Kumar Khattri
doaj   +1 more source

The freeze-out mechanism and phase-space density in ultrarelativistic heavy-ion collisions [PDF]

, 2002
We explore the consequences of a freeze-out criterion for heavy-ion collisions, based on pion escape probabilities from the hot and dense but rapidly expanding collision region.
B. Tomášik, B. Tomášik, Boris Tomášik, D. Adamová, D. Ferenc, D.E. Groom, E. Schnedermann, F. Cooper, F. Grassi, F. Grassi, H. Bebie, J. Bondorf, J. Bächler, J. Ftáčnik, K. Adcox, M. Murray, M. Prakash, M.M. Aggarwal, R.L. Ray, S. Nagamiya, S. Pratt, S.A. Bass, S.V. Afanasiev, S.V. Akkelin, T. Alber, Urs Achim Wiedemann, Yu.M. Sinyukov   +26 more
core   +2 more sources

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

Advanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu, Nelson Pereira, Javier Vicente, Carmen Rial Tubio, Senentxu Lanceros‐Méndez   +4 more
wiley   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Machine learning rather than trial and error to close morphodynamical tuneable parameters: Application to a two-phase/two-layer model

Journal of Hydroinformatics
Physics-based numerical models often depend on several parameters to close. Some of them can be expressed using established theoretical or empirical closure formulations.
Robin Meurice, Sandra Soares-Frazão
doaj   +1 more source

Finite volume effects near the chiral crossover [PDF]

EPJ Web of Conferences
The effect of a finite volume presents itself both in heavy ion experiments as well as in recent model calculations. The magnitude is sensitive to the proximity of a nearby critical point.
Kara Ruben, Borsányi Szabolcs, Fodor Zoltán, Guenther Jana N., Parotto Paolo, Pásztor Attila, Wong C. H.   +6 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

From Statistical Correlations to Stochasticity and Size Effects in Sub-Micron Crystal Plasticity

Metals, 2019
Metals in small volumes display a strong dependence on initial conditions, which translates into size effects and stochastic mechanical responses. In the context of crystal plasticity, this amounts to the role of pre-existing dislocation configurations ...
Hengxu Song, Stefanos Papanikolaou
doaj   +1 more source

Influence of cement-augmented pedicle screws with different volumes of polymethylmethacrylate in osteoporotic lumbar vertebrae over the adjacent segments: a 3D finite element analysis

BMC Musculoskeletal Disorders, 2020
Background Polymethylmethacrylate (PMMA) is commonly used for cement-augmented pedicle screw instrumentation (CAPSI) to improve the fixation stability and reduce the risk of screw loosening in the osteoporotic thoracolumbar spine.
Hui-zhi Guo, Shun-cong Zhang, Dan-qing Guo, Yan-huai Ma, Kai Yuan, Yong-xian Li, Jian-cheng Peng, Jing-lan Li, De Liang, Yong-chao Tang   +9 more
doaj   +1 more source

The lattice Landau gauge gluon propagator: lattice spacing and volume dependence

, 2018
The interplay between the finite volume and finite lattice spacing is investigated using lattice QCD simulations to compute the Landau gauge gluon propagator.
A. Cucchieri, O. Oliveira, Orlando Oliveira, Paulo J. Silva   +3 more
core   +1 more source