Results 71 to 80 of about 79,822 (189)

On finite configurations in the spectra of singular measures

Mathematische Zeitschrift, 2023
We establish various forms of the following certainty principle: a set $S \subset \mathbb{R}^{n}$ contains a given finite linear pattern, provided that $S$ is a support of the Fourier transform of a sufficiently singular probability measure on $\mathbb{R}^{n}$. As its main corollary, we provide new dimensional estimates for PDE- and Fourier-constrained
openaire   +2 more sources

Supersymmetric smooth distributions of M2-branes as AdS solitons

Journal of High Energy Physics
We show that the singularities of certain distributions of M2-branes can be removed by adding a Wilson loop around a compact direction along the brane.
A. Anabalón, D. Astefanesei, A. Gallerati, J. Oliva   +3 more
doaj   +1 more source

Parallel Transport Frame for Fiber Shape Sensing

IEEE Photonics Journal, 2018
This paper reports a reconstruction method to determine a 3-D space curve from the distributed strain by using the parallel transport frame. Parallel transport frame can efficiently eliminate the singularities and discontinuous point which appear in ...
Jiwen Cui, Shiyuan Zhao, Chaoqiang Yang, Jiubin Tan   +3 more
doaj   +1 more source

Design and Kinematics Performance Analysis of an Equivalent 3-P_zP_xS Parallel Mechanism

Jixie chuandong, 2020
In order to meet the requirements of the configuration innovation of the multi-axis linkage processing platform， a new type of 2R1T 3-PzPxS parallel mechanism is synthesized， which contains a planar pantograph structure unit in the branching chain.
Yeping Lü, Yong Xu, Wei Liang Song, Zheng Liang, Yong Liu   +4 more
doaj  

Robust Control for High-Speed Visual Servoing Applications

International Journal of Advanced Robotic Systems, 2007
This paper presents a new control scheme for visual servoing applications. The approach employs quadratic optimization, and explicitly handles both joint position, velocity and acceleration limits.
Lars-Peter Ellekilde, Peter Favrholdt, Mads Paulin, Henrik Gordon Petersen   +3 more
doaj   +1 more source

Geodesic motion near self-gravitating scalar field configurations

Discrete and Continuous Models and Applied Computational Science, 2019
We study the geodesics motion of neutral test particles in the static spherically symmetric spacetimes of black holes and naked singularities supported by a selfgravitating real scalar field.
Ivan M. Potashov, Julia V. Tchemarina, Alexander N. Tsirulev   +2 more
doaj   +1 more source

Configurations and singularity of hybrid mechanism [PDF]

Proceedings of the 2nd Annual International Conference on Electronics, Electrical Engineering and Information Science (EEEIS 2016), 2017
Mao-Yan He, Jian-Guo Luo
openaire   +1 more source

Non-local metasurface generates highly efficient transmission vortex by intrinsic singularity and generalized kerker effect

PhotoniX
In response to the growing demands of advanced 5G/6G communication technologies, millimeter-wave vortex beams have emerged as a promising solution to increase channel capacities.
Hang Xu, Jingguang Chen, Bo Wang, Hui Li, Chunyu Song, Qi Tan, Zhengyi Zhao, Wenzhe Liu, Lei Shi, Jie Li, Jianquan Yao   +10 more
doaj   +1 more source

SERVIÇO SOCIAL, TRABALHO E ESFERA PÚBLICA: mercado de trabalho e prática profissional nos espaços dos Conselhos de Direitos

Revista de Políticas Públicas, 2012
This article intends to analyze Social Work at the social-labor sites of the Council of Rights, trying to establish a general configuration of the action of that professional in the context of the transformation occurring in the capitalist society.
Simone de Jesus Guimarães
doaj  

Line Creep in Paper Peeling

EPJ Web of Conferences, 2010
We have studied experimentally the dynamics of the separation of a sheet of paper into two halves in a peeling configuration. The experimental setup consists of a peeling device, where a fracture front is driven along the plane of the paper, with a ...
Rosti J., Illa X., Koivisto J., Alava M.
doaj   +1 more source