Results 11 to 20 of about 94,660 (301)

Ring Origami: Snap‐Folding of Rings with Different Geometries

open access: yesAdvanced Intelligent Systems, 2021
Origami folding and thin structure buckling are intensively studied for structural transformations with large packing ratio for various biomedical, robotic, and aerospace applications.
Shuai Wu   +6 more
doaj   +1 more source

Nonassociative Algebras, Rings and Modules over Them

open access: yesMathematics, 2023
The review is devoted to nonassociative algebras, rings and modules over them. The main actual and recent trends in this area are described. Works are reviewed on radicals in nonassociative rings, nonassociative algebras related with skew polynomials ...
Sergey Victor Ludkowski
doaj   +1 more source

Alternative Division Rings of Characteristic 2 [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1951
Erwin Kleinfeld
exaly   +4 more sources

A mechanistic reinterpretation of fast inactivation in voltage-gated Na+ channels

open access: yesNature Communications, 2023
The hinged-lid model was long accepted as the canonical model for fast inactivation in Nav channels. It predicts that the hydrophobic IFM motif acts intracellularly as the gating particle that binds and occludes the pore during fast inactivation. However,
Yichen Liu   +3 more
doaj   +1 more source

Port-Hamiltonian Mathematical Model of a Fluid Ring Attitude System

open access: yesEnergies, 2021
In this article, we propose a mathematical model using the port-Hamiltonian formalism for a satellite’s three-axis attitude system comprising fluid rings.
Juan Cristobal Alcaraz Tapia   +2 more
doaj   +1 more source

Smarandache Non-Associative (SNA-) rings [PDF]

open access: yes, 2005
In this paper we introduce the concept of Smarandache non-associative rings, which we shortly denote as SNA-rings as derived from the general definition of a Smarandache Structure (i.e., a set A embedded with a week structure W such that a proper subset ...
Vasantha Kandasamy, W.B.
core   +1 more source

Smarandache near-rings [PDF]

open access: yes, 2002
The main concern of this book is the study of Smarandache analogue properties of near-rings and Smarandache near-rings; so it does not promise to cover all concepts or the proofs of all ...
Vasantha, Kandasamy
core   +1 more source

The dependence of performance characteristics of roller bearing on material used [PDF]

open access: yesОмский научный вестник, 2021
The main materials for the manufacture of rolling stock bearing assemblies are steel ShKh15, ShKh15SG, ShKh4. The article discusses the possibility of using steels 20Kh2N4A, 95Kh18-Sh, 12Kh18N9T as alternative materials, an assessment of the arising ...
D. B. Grits
doaj   +1 more source

SMARANDACHE NON-ASSOCIATIVE RINGS [PDF]

open access: yes, 2002
An associative ring is just realized or built using reals or complex; finite or infinite by defining two binary operations on it. But on the contrary when we want to define or study or even introduce a non-associative ring we need two separate algebraic ...
Vasantha, Kandasamy
core   +1 more source

Crystal structure of γ-methyl l-glutamate N-carboxy anhydride

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C7H9NO5, alternative name N-carboxy-l-glutamic anhydride γ-methyl ester, the oxazolidine ring is essentially planar with a maximum deviation of 0.020 (3) Å. In the crystal, molecules are linked by N—H...O hydrogen bonds between the
Hitoshi Kanazawa   +3 more
doaj   +1 more source

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