Results 21 to 30 of about 47,857 (276)

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

Refractive Index Sensor Based on Fano Resonances in Metal-Insulator-Metal Waveguides Coupled with Resonators

open access: yesSensors, 2017
A surface plasmon polariton refractive index sensor based on Fano resonances in metal–insulator–metal (MIM) waveguides coupled with rectangular and ring resonators is proposed and numerically investigated using a finite element method.
Yue Tang   +6 more
doaj   +1 more source

Analysis and Design of a Metamaterial Lens Antenna Using the Theory of Characteristic Modes

open access: yesInternational Journal of Antennas and Propagation, 2018
A new single-layer metamaterial lens antenna aimed to operate at 10 GHz is proposed in this paper. The lens antenna consists of twelve capacitively coupled unit cells distributed along a ring and illuminated by an open-ended circular waveguide with a ...
Daniel Santillán-Haro   +3 more
doaj   +1 more source

Teeth profile parameter design and transmission property analysis of external generating wave movable teeth transmission

open access: yesThe Journal of Engineering, 2018
A highly efficient integrated transmission unit – external generating wave movable teeth transmission − was proposed and two kinds of typical transmission types were researched.
Yali Yi, Yunfei Gao, Rui Wei, Herong Jin
doaj   +1 more source

Thermal-induced influences considered spindle unit angular contact ball bearing preload determination using embedded fiber Bragg gating sensors

open access: yesInternational Journal of Distributed Sensor Networks, 2022
As the most important segment of the spindle unit angular contact ball bearing, the preload significantly influences the bearing characteristics. Thus, the thermal-induced preload derived from the thermal expansion of spindle unit components also affects
Yanfang Dong, Feifan Chen, Ming Qiu
doaj   +1 more source

Nuclear-matter radius studies from $^{58}$Ni(α, α) experiments at the GSI Experimental Storage Ring with the EXL facility [PDF]

open access: yes, 2017
A novel method for measuring nuclear reactions in inverse kinematics with stored ion beams was successfully used to extract the nuclear-matter radius of Ni-58.
Nagae, D.   +100 more
core   +1 more source

Simulation of ring polymer melts with GPU acceleration [PDF]

open access: yes, 2018
We implemented the elastic lattice polymer model on the GPU (Graphics Processing Unit), and show that the GPU is very efficient for polymer simulations of dense polymer melts.
Schram, R.D.   +3 more
core   +2 more sources

Density functional theory study of the optical and electronic properties of oligomers based on phenyl-ethynyl units linked to triazole, thiadiazole, and oxadiazole rings to be used in molecular electronics

open access: yesThe Journal of Chemical Physics, 2010
In the present work, we have studied from a theoretical perspective the geometry and electronic properties of the series of related compounds 2,5-bis(phenylethynyl)-1,3,4-thiadiazole, 2,5-bis(phenylethynyl)-1,3,4-oxadiazole, and 2,5-bis(phenylethynyl)-1,2,4-triazole as candidates for electron-conducting polymers and compounds with desirable (opto ...
Garzón, Andrés   +7 more
openaire   +3 more sources

Crystal structure and DFT study of (E)-N-[2-(1H-indol-3-yl)ethyl]-1-(anthracen-9-yl)methanimine

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
The title compound, C25H20N2, (I), was synthesized from the condensation reaction of anthracene-9-carbaldehyde and tryptamine in dry ethanol. The indole ring system (r.m.s.
Md. Serajul Haque Faizi   +3 more
doaj   +1 more source

Optimization of configurations of atomic species on two-dimensional hexagonal lattices for copper-based systems

open access: yesAIP Advances, 2022
We explore the stable configurations of atomic species on a hexagonal plane in two-dimensional (2D) binary systems. We investigate configurations for 9 and 16 atomic sites in the unit cell (3 × 3 and 4 × 4 supercells) by using the density-functional ...
Shota Ono
doaj   +1 more source

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