Results 21 to 30 of about 582,878 (165)

Representations of group rings and groups [PDF]

open access: yesInternational Journal of Group Theory, 2018
An isomorphism between the group ring of a finite group and a ring of certain block diagonal matrices is established. It is shown that for any group ring matrix $A$ of $mathbb{C} G$ there exists a matrix $U$ (independent of $A$) such that $U^{-1}AU= diag(
Ted Hurley
doaj   +1 more source

Development of Rotaxanes as E-Field-Sensitive Superstructures in Plasmonic Nano-Antennas

open access: yesOrganic Materials, 2022
We present the concept of electrostatic field-driven supramolecular translation within electrically connected plasmonic nano-antennas. The antenna serves as an anchoring point for the mechanically interlocked molecules, as an electrode for the ...
Laurent Jucker   +5 more
doaj   +1 more source

Integration of Nodal and BMP Signaling by Mutual Signaling Effector Antagonism

open access: yesCell Reports, 2020
Summary: Opposing sources of bone morphogenetic protein (BMP) and Nodal signaling molecules are sufficient to induce the formation of a full axis in zebrafish embryos.
Gary Huiming Soh   +2 more
doaj   +1 more source

Morphic group rings

open access: yesJournal of Pure and Applied Algebra, 2006
An associative ring \(R\) with identity is called left morphic if for every element \(a\in R\) there exists \(b\in R\) such that \(l_R(a)=Rb\) and \(l_R(b)=Ra\), where \(l_R(a)\) denotes the left annihilator of \(a\) in \(R\). The ring \(R\) is said to be strongly left morphic if every matrix ring \(M_n(R)\) is left morphic [\textit{W. K.
Chen, Jianlong   +2 more
openaire   +2 more sources

Stiffness Considerations for a MEMS-Based Weighing Cell

open access: yesSensors, 2023
In this paper, a miniaturized weighing cell that is based on a micro-electro-mechanical-system (MEMS) is discussed. The MEMS-based weighing cell is inspired by macroscopic electromagnetic force compensation (EMFC) weighing cells and one of the crucial ...
Karin Wedrich   +4 more
doaj   +1 more source

Study on temperature characteristics of multi-tower cable-stayed bridge [PDF]

open access: yesArchives of Civil Engineering, 2023
Temperature effects have a great influence on the mechanical behavior of cable-stayed bridges, especially for long-span bridges, which have significant time-varying and spatial effects.
Liu Chengyuan   +3 more
doaj   +1 more source

Localized direct material removal and deposition by nanoscale field emission scanning probes

open access: yesMicro and Nano Engineering, 2022
The manufactory of advanced micro- and nanoscale devices relies on capable patterning strategies. Focused electron beams, as for instance implemented since long in electron beam lithography and electron beam induced deposition, are in this regard key ...
Martin Hofmann   +3 more
doaj   +1 more source

A remark on group rings of periodic groups [PDF]

open access: yesInternational Journal of Group Theory, 2016
A positive solution of the problem of the existence of nontrivial pairs of zero-divisors in group rings of free Burnside groups of sufficiently large odd periods $n>10^{10}$ obtained previously by S. V. Ivanov and R. Mikhailov extended to all odd periods
Artur Grigoryan
doaj  

Design of Contactlessly Powered and Piezoelectrically Actuated Tools for Non-Resonant Vibration Assisted Milling

open access: yesActuators, 2018
This contribution presents a novel design approach for vibration assisted machining (VAM). A lot of research has already been done regarding the influence of superimposed vibrations during a milling process, but there is almost no information about how ...
Martin Silge, Thomas Sattel
doaj   +1 more source

The Interplay of Biomimetics and Biomechatronics

open access: yesBiomimetics, 2022
Biomechatronics is an engineering subject in which biomimetics as a method is one of its two supporting pillars: biology for engineering, or Bio4Eng. This is contrasted with biocompatible design, or Eng4Bio, examples of which are human-serving systems ...
Hartmut Witte
doaj   +1 more source

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