Results 81 to 90 of about 42,135 (268)

Cylindrical cosmological simulations with STEPS

Astronomy & Astrophysics
Context. The global topology of the Universe can affect long-range gravitational forces via boundary conditions. Detailed studies of non-trivial topologies require simulations that natively adopt such geometries. Cosmological N-body simulations typically
Rácz G., Varga V. H., Pál B., Szapudi I., Csabai I., Sawala T.   +5 more
doaj   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Effective Lagrangian of a bosonic system in a non-trivial topology under magnetic effects

European Physical Journal C: Particles and Fields
We investigate a bosonic system within an effective quantum field theory defined on a non-trivial topology in the presence of an external magnetic field.
Emerson B. S. Corrêa, Michelli S. R. Sarges, Airton H. G. Rodrigues, Carlos A. Bahia   +3 more
doaj   +1 more source

State-of-the-Art Overview of Smooth-Edged Material Distribution for Optimizing Topology (SEMDOT) Algorithm

Computation
Topology optimization is a powerful and efficient design tool, but the structures obtained by element-based topology optimization methods are often limited by fuzzy or jagged boundaries.
Minyan Liu, Wanghua Hu, Xuhui Gong, Hao Zhou, Baolin Zhao   +4 more
doaj   +1 more source

Topology Optimization With Selective Problem Setups

IEEE Access, 2019
Topology optimization has demonstrated its power in structural design under a variety of physical disciplines. Generally, a topology optimization problem is formulated with clearly-defined problem setup.
Junyu Fu, Jiaqi Huang, Jikai Liu
doaj   +1 more source

Topological divisors of zero and Shilov boundary

Topology and its Applications, 2006
Let \(L\) be a non-archimedean and non-trivially complete valued field, let \((A, \|. \| )\) be a commutative normed \(L\)-algebra with unity, and let \(\|.\| _{si}\) be the spectral seminorm of \(A\) defined by \(\| x \| _{si}:= \lim_{n} \| x^n \| ^{1/n}\). The Shilov boundary of \(A\) is the smallest among all the subsets \(F\) of Mult\((A,\|.
openaire   +2 more sources

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Topological phase transitions of generalized Brillouin zone

Communications Physics
It has been known that the bulk-boundary correspondence (BBC) of the non-Hermitian skin effect is characterized by the topology of the complex eigenvalue spectra, while the topology of the wave function gives rise to Hermitian BBC with conventional ...
Sonu Verma, Moon Jip Park
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Observation of momentum-gap topology of light at temporal interfaces in a time-synthetic lattice

Nature Communications
Topological phases have prevailed across diverse disciplines, spanning electronics, photonics, and acoustics. Hitherto, the understanding of these phases has centred on energy (frequency) bandstructures, showcasing topological boundary states at spatial ...
Yudong Ren, Kangpeng Ye, Qiaolu Chen, Fujia Chen, Li Zhang, Yuang Pan, Wenhao Li, Xinrui Li, Lu Zhang, Hongsheng Chen, Yihao Yang   +10 more
doaj   +1 more source