Results 61 to 70 of about 14,137 (301)

LABORATORY TESTS OF A FOUR-SECTION SEED WHEEL WITH GROOVES IN THE SHAPE OF A PART OF THE ROTATION SURFACE OF A TORUS [PDF]

open access: yesVolga Region Farmland, 2020
The article deals with the issue of improving the quality indicator of sowing cereal seeds, such as instability of total sowing and the results of laboratory research of experimental sowing machine, the reel of which is made four-sectional, with grooves ...
N.P. Laryushin   +3 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

torus-3dpdr: a self-consistent code treating three-dimensional photoionization and photodissociation regions [PDF]

open access: yes, 2015
The interaction of ionizing and far-ultraviolet radiation with the interstellar medium is of great importance. It results in the formation of regions in which the gas is ionized, beyond which are photodissociation regions (PDRs) in which the gas ...
TG Bisbas (21994826)   +6 more
core  

Chaos and pole skipping in CFT2

open access: yesJournal of High Energy Physics, 2021
Recent work has suggested an intriguing relation between quantum chaos and energy density correlations, known as pole skipping. We investigate this relationship in two dimensional conformal field theories on a finite size spatial circle by studying the ...
David M. Ramirez
doaj   +1 more source

The Fourier and Grover walks on the two-dimensional lattice and torus

open access: yesYokohama Mathematical Journal, 2018
In this paper, we consider discrete-time quantum walks with moving shift (MS) and flip-flop shift (FF) on two-dimensional lattice $\mathbb{Z}^2$ and torus $π_N^2=(\mathbb{Z}/N)^2$. Weak limit theorems for the Grover walks on $\mathbb{Z}^2$ with MS and FF were given by Watabe et al. and Higuchi et al., respectively.
Masahiro, Asano   +3 more
openaire   +2 more sources

Electrified Damage in Motion Systems

open access: yesAdvanced Engineering Materials, EarlyView.
The electrified damage in motion systems is a fundamental framework presenting the degradation pathway arising from the coupling of electrical energy transport with mechanical contact and interfacial chemistry. The framework positions electrified damage as a distinct degradation regime with unique characteristic surface morphologies and failures of ...
M. Humaun Kabir   +2 more
wiley   +1 more source

Semiclassical limit of topological Rényi entropy in 3d Chern-Simons theory

open access: yesJournal of High Energy Physics, 2020
We study the multi-boundary entanglement structure of the state associated with the torus link complement S 3 \T p,q in the set-up of three-dimensional SU(2) k Chern-Simons theory.
Siddharth Dwivedi   +2 more
doaj   +1 more source

Tilings and rotations on the torus: a two-dimensional generalization of Sturmian sequences

open access: yesDiscrete Mathematics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Valérie Berthé, Laurent Vuillon
openaire   +2 more sources

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi   +5 more
wiley   +1 more source

Nonrelativistic Dirac fermions on the torus

open access: yesJournal of High Energy Physics, 2023
Two dimensional conformal field theories have been extensively studied in the past. When considered on the torus, they are strongly constrained by modular invariance. However, introducing relevant deformations or chemical potentials pushes these theories
Jeremías Aguilera-Damia   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy