Results 111 to 120 of about 1,437,304 (362)

Toughness of Confined Auxetic Foams

open access: yesAdvanced Engineering Materials, EarlyView.
Auxetic (negative Poisson's ratio) materials offer benefits such as impact mitigation, thermal insulation, vibration damping, and reduced shear strain, although their fracture mechanics are largely unexplored. This study investigates damage initiation and propagation in confined re‐entrant auxetic foams from polyurethane via experimental ...
Adrianos E. F. Athanasiadis   +3 more
wiley   +1 more source

Multimodal Characterization Method for Metamaterials with Tunable Mechanical Stiffness and Electrical Resistivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a multimodal characterization method for a prototype metamaterial model structure that features four distinct states of mechanical stiffness and electrical resistivity. Through simulations and experiments, it uncovers insights into the structural behavior, the correlation between changes in electrical resistivity and mechanical ...
Rebecca Kose   +3 more
wiley   +1 more source

Three-particle quantization condition in a finite volume: 2. General formalism and the analysis of data

open access: yesJournal of High Energy Physics, 2017
We derive the three-body quantization condition in a finite volume using an effective field theory in the particle-dimer picture. Moreover, we consider the extraction of physical observables from the lattice spectrum using the quantization condition.
Hans-Werner Hammer   +2 more
doaj   +1 more source

The dynamics of zero modes in lattice gauge theory — difference between SU(2) and SU(3) in 4D

open access: yesJournal of High Energy Physics, 2023
The dynamics of zero modes in gauge theory is highly nontrivial due to its nonperturbative nature even in the case where the other modes can be treated perturbatively. One of the related issues concerns the possible instability of the trivial vacuum A μ (
Yuhma Asano, Jun Nishimura
doaj   +1 more source

Surface Modification of Sol–Gel Synthesized Ba0.85Ca0.15Zr0.1Ti0.9O3 using Stearic Acid Additives

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores a novel approach to enhance the piezoelectric performance of lead‐free BCZT ceramics synthesized via the sol–gel method. By coating the BCZT powder with only a 0.69 nm stearic acid layer, the electromechanical response is significantly boosted up to 359 pC N−1, revealing promising implications for high‐performance sensor and ...
Michelle Weichelt   +6 more
wiley   +1 more source

Nuclear effective field theory on the lattice [PDF]

open access: yesProceedings of The XXVI International Symposium on Lattice Field Theory — PoS(LATTICE 2008), 2009
In the low-energy region far below the chiral symmetry breaking scale (which is of the order of 1 GeV) chiral perturbation theory provides a model-independent approach for quantitative description of nuclear processes. In the two- and more-nucleon sector perturbation theory is applicable only at the level of an effective potential which serves as input
Evgeny Epelbaum   +4 more
openaire   +2 more sources

Ward identities in $\mathcal{N}=1$ supersymmetric SU(3) Yang-Mills theory on the lattice

open access: yes, 2017
The introduction of a space-time lattice as a regulator of field theories breaks symmetries associated with continuous space-time, i.e.\ Poincar{\'e} invariance and supersymmetry.
Ali, Sajid   +7 more
core   +1 more source

CONNECTIONS of the LIOUVILLE MODEL and XXZ SPIN CHAIN [PDF]

open access: yes, 1995
The quantum theory of the Liouville model with imaginary field is considered using the quantum inverse scattering method. An integrable structure with nontrivial spectral parameter dependence is developed for lattice Liouville theory by scaling the $L ...
Affleck   +46 more
core   +2 more sources

Graphene, Lattice Field Theory and Symmetries [PDF]

open access: yes, 2011
Borrowing ideas from tight binding model, we propose a board class of lattice field models that are classified by non simply laced Lie algebras. In the case of AN − 1 ≃ su(N) series, we show that the couplings between the quantum states living at the ...
L. B. Drissi, E. H. Saidi, M. Bousmina
semanticscholar   +1 more source

Effective field theories and lattice QCD [PDF]

open access: yesProceedings of The 8th International Workshop on Chiral Dynamics — PoS(CD15), 2016
Talk given at the 8th International Workshop on Chiral Dynamics, June 29--July 3, 2015, Pisa, Italy.
openaire   +3 more sources

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