Results 61 to 70 of about 6,446,922 (262)

Sampled Reference Frame Algorithm Based on Space Vector Pulse Width Modulation for Five Level Cascaded H-Bridge Inverter [PDF]

, 2014
In This paper the Sampled Reference Frame Algorithm for Five Level Cascaded H-Bridge Inverter is presented. This simple method is less computation method than Sector Identification.
C, G. (Gomathi), Nagath, N. (Navya), S, V. (Veerakumar)   +2 more
core  

Quantum communication using a bounded-size quantum reference frame

, 2009
Typical quantum communication schemes are such that to achieve perfect decoding the receiver must share a reference frame with the sender. Indeed, if the receiver only possesses a bounded-size quantum token of the sender's reference frame, then the ...
Barnum H, Bartlett S D, Gambini R, Gour G, Peter S Turner, Poulin D Blume-Kohout R, Robert W Spekkens, Stephen D Bartlett, Sternberg S, Terry Rudolph, Vidal G Cirac I   +10 more
core   +2 more sources

CARIB18: A Stable Geodetic Reference Frame for Geological Hazard Monitoring in the Caribbean Region

Remote Sensing, 2019
We have developed a Stable Caribbean Reference Frame 2018 (CARIB18) using long-term continuous observations from 18 continuously operating Global Positioning System (GPS) stations fixed on the margins of the stable portion of the Caribbean plate.
Guoquan Wang, Hanlin Liu, G. Mattioli, Meghan M. Miller, K. Feaux, J. Braun   +5 more
semanticscholar   +1 more source

Automatic Image Registration Provides Superior Accuracy Compared with Surface Matching in Cranial Navigation

Sensors
Objective: The precision of neuronavigation systems relies on the correct registration of the patient’s position in space and aligning it with radiological 3D imaging data.
Henrik Frisk, Margret Jensdottir, Luisa Coronado, Markus Conrad, Susanne Hager, Lisa Arvidsson, Jiri Bartek, Gustav Burström, Victor Gabriel El-Hajj, Erik Edström, Adrian Elmi-Terander, Oscar Persson   +11 more
doaj   +1 more source

The Effects of the IERS Conventions (2010) on High Precision Orbit Propagation [PDF]

Journal of Astronomy and Space Sciences, 2014
The Earth is not perfectly spherical and its rotational axis is not fixed in space, and these geophysical and kinematic irregularities work as dominant perturbations in satellite orbit propagation.
Kyoung-Min Roh, Byung-Kyu Choi
doaj   +1 more source

Celestial Reference Frames [PDF]

International Astronomical Union Colloquium, 1980
AbstractA celestial reference frame is based on some dynamical or kinematic approximation of an absolute coordinate system and is materialized by a fundamental catalogue of stars. It is characterized by the accuracy of the system and the precision of its stellar realization.The present situation, marked by the construction of the FK5 system and ...
openaire   +2 more sources

Gaia Data Release 1: The reference frame and the optical properties of ICRF sources [PDF]

, 2016
As part of the data processing for Gaia Data Release~1 (Gaia DR1) a special astrometric solution was computed, the so-called auxiliary quasar solution.
F. Mignard, S. Klioner, L. Lindegren, U. Bastian, A. Bombrun, J. Hernández, D. Hobbs, U. Lammers, D. Michalik, M. Ramos-Lerate, M. Biermann, A. Butkevich, G. Comoretto, E. Joliet, B. Holl, A. Hutton, P. Parsons, H. Steidelmueller, A. Andrei, G. Bourda, P. Charlot   +20 more
semanticscholar   +1 more source

Time-reversal frameness and superselection

, 2009
We show that appropriate superpositions of motional states are a reference frame resource that enables breaking of time -reversal superselection so that two parties lacking knowledge about the other's direction of time can still communicate.
Barry C. Sanders, Gilad Gour, Landau L. D., Peter S. Turner, Plenio M. B., Sakurai J. J.   +5 more
core   +1 more source

Information Integration and Information Storage in Retinotopic and Non-Retinotopic Sensory Memory

Vision, 2021
The first stage of the Atkinson–Shiffrin model of human memory is a sensory memory (SM). The visual component of the SM was shown to operate within a retinotopic reference frame.
Haluk Öğmen, Michael H. Herzog
doaj   +1 more source

Hierarchical video summarisation in reference frame subspace [PDF]

, 2009
In this paper, a hierarchical video structure summarization approach using Laplacian Eigenmap is proposed, where a small set of reference frames is selected from the video sequence to form a reference subspace to measure the dissimilarity between two ...
Crookes, D, Jiang, RM, Sadka, AH
core