Results 21 to 30 of about 4,047,721 (330)
, 2020 Nanopositioning and nanomeasuring machines are 3D coordinate measuring systems with nanometer precision at measurement volumes in the cubic centimeter range whose coordinate base is formed by an interferometer system with a common mirror corner.
Florian Fern +4 more
semanticscholar +1 more source
Novel antenna concepts via coordinate transformation
Advanced Electromagnetics, 2013 Coordinate transformation is an emerging field which offers a powerful and unprecedented ability to manipulate and control electromagnetic waves. Using this tool, we demonstrate the design of novel antenna concepts by tailoring their radiation properties.
P.-H. Tichit +4 more
doaj +1 more source
Recovery of a Smooth Metric via Wave Field and Coordinate Transformation Reconstruction [PDF]
SIAM Journal on Applied Mathematics, 2017 In this paper, we study the inverse boundary value problem for the wave equation with a view towards an explicit reconstruction procedure. We consider both the anisotropic problem where the unknown is a general Riemannian metric smoothly varying in a ...
M. Hoop, Paul Kepley, L. Oksanen
semanticscholar +1 more source
Earth Sciences Research Journal, 2019 The popularity of Artificial Neural Network (ANN) methodology has been growing in a wide variety of areas in geodesy and geospatial sciences. Its ability to perform coordinate transformation between different datums has been well documented in literature.
Yao Yevenyo Ziggah +3 more
semanticscholar +1 more source
Note on ingoing coordinates for binary black holes [PDF]
, 2003 In a previous paper, a binary black hole four-metric was presented in a post-Newtonian corotating coordinate system valid only up to the holes' apparent horizons.
Alvi, Kashif
core +2 more sources
A Novel High-Squint Spotlight SAR Raw Data Simulation Scheme in 2-D Frequency Domain
Remote Sensing, 2022 Raw data simulation is the front-end work of synthetic aperture radar (SAR), which is of great significance. For high-squint spotlight SAR, the frequency domain simulation algorithm is invalid because of the range-azimuth coupling effect.
Zhengwei Guo +4 more
doaj +1 more source
Magnifying perfect lens and superlens design by coordinate transformation [PDF]
, 2007 The coordinate transformation technique is applied to the design of perfect lenses and superlenses. In particular, anisotropic metamaterials that magnify two-dimensional planar images beyond the diffraction limit are designed by the use of oblate ...
A. J. Ward +13 more
core +3 more sources
A Coordinate Transformation for Unsteady Boundary Layer Equations [PDF]
INCAS Bulletin, 2011 This paper presents a new coordinate transformation for unsteady, incompressible boundary layer equations that applies to both laminar and turbulent flows. A generalization of this coordinate transformation is also proposed.
Paul G. A. CIZMAS
doaj +1 more source
Applied Sciences, 2022 In view of the phenomenon that camera imaging will appear large up close and small from afar in the eye-to-hand hand-calibration system, one hand–eye calibration is carried out.
Shaohui Su +3 more
doaj +1 more source
Cylindrical Superlens by a Coordinate Transformation
, 2008 Cylinder-shaped perfect lens deduced from the coordinate transformation method is proposed. The previously reported perfect slab lens is noticed to be a limiting form of the cylindrical lens when the inner radius approaches infinity with respect to the ...
J. B. Pendry, Min Qiu, Min Yan, Wei Yan
core +1 more source