Results 11 to 20 of about 4,656,236 (296)

Topological Derivative for PDEs on Surfaces [PDF]

open access: yesSIAM Journal on Control and Optimization, 2022
In this paper we study the problem of the optimal distribution of two materials on smooth submanifolds $M$ of dimension $d-1$ in $\mathbf R^d$ without boundary by means of the topological derivative. We consider a class of shape optimisation problems which are constrained by a linear partial differential equation on the surface. We examine the singular
Peter Gangl, Kevin Sturm
openaire   +2 more sources

Beyond Node Degree: Evaluating AS Topology Models [PDF]

open access: yes, 2012
This is the accepted version of 'Beyond Node Degree: Evaluating AS Topology Models', archived originally at arXiv:0807.2023v1 [cs.NI] 13 July 2008.Many models have been proposed to generate Internet Autonomous System (AS) topologies, most of which make ...
Mortier, R   +7 more
core   +4 more sources

Topological states on the gold surface [PDF]

open access: yesNature Communications, 2015
AbstractGold surfaces host special electronic states that have been understood as a prototype of Shockley surface states. These surface states are commonly employed to benchmark the capability of angle-resolved photoemission spectroscopy (ARPES) and scanning tunnelling spectroscopy.
Binghai Yan   +9 more
openaire   +6 more sources

Methods for designing the next generation of aircraft architectures using topology optimisation [PDF]

open access: yes, 2010
The need from energy efficient transportation has resulted in a growing interest in new aircraft configurations such as the Blended Wing Body. There is very little collective knowledge on the optimal structural layouts of these aircraft, and the ...
Eves, Jamie Samantha
core   +6 more sources

Bacterial Biofilm Growth on 3D-Printed Materials

open access: yesFrontiers in Microbiology, 2021
Recent advances in 3D printing have led to a rise in the use of 3D printed materials in prosthetics and external medical devices. These devices, while inexpensive, have not been adequately studied for their ability to resist biofouling and biofilm ...
Donald C. Hall   +6 more
doaj   +1 more source

Competition Between Object Topology and Surface Features in Children’s Extension of Novel Nouns

open access: yesOpen Mind, 2023
Objects’ topological properties play a central role in object perception, superseding objects’ surface features in object representation and tracking from early in development.
Praveen Kenderla   +2 more
doaj   +1 more source

The Vip3Ag4 Insecticidal Protoxin from Bacillus thuringiensis Adopts A Tetrameric Configuration That Is Maintained on Proteolysis

open access: yesToxins, 2017
The Vip3 proteins produced during vegetative growth by strains of the bacterium Bacillus thuringiensis show insecticidal activity against lepidopteran insects with a mechanism of action that may involve pore formation and apoptosis.
Leopoldo Palma   +8 more
doaj   +1 more source

Surface profile prediction and analysis applied to turning process [PDF]

open access: yes, 2008
An approach for the prediction of surface profile in turning process using Radial Basis Function (RBF) neural networks is presented. The input parameters of the RBF networks are cutting speed, depth of cut and feed rate.
LU, Chen, COSTES, Jean-Philippe
core   +1 more source

Frequency selective surface with complex topology elements

open access: yesВісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2021
Relevance: The solution of specific problems in modern technology of microwave and UHF ranges, such as the implementation of reducing the radar signature of objects, spatial frequency-selective filters, reflectors requires the development and creation of
D. V. Mayboroda, S. A. Pogarsky
doaj   +1 more source

Topological laminations on surfaces [PDF]

open access: yesExpositiones Mathematicae, 2019
We present and prove a topological characterization of geodesic laminations on hyperbolic surfaces of finite type.
openaire   +3 more sources

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