Results 291 to 300 of about 357,530 (342)
Some of the next articles are maybe not open access.
Lightweight Involutive Components for Symmetric Cryptography
2019 16th International ISC (Iranian Society of Cryptology) Conference on Information Security and Cryptology (ISCISC), 2019Lightweight components are used in the design of modern lightweight ciphers. In the current paper, firstly we investigate a new family of lightweight $4\times 4$ almost MDS diffusion layers, mathematically, and determine when they are involutive. The proposed diffusion layers are suitable for software applications and have less fixed points, compared
Seyed Mojtaba Dehnavi +2 more
openaire +1 more source
Estimation of finite mixtures with symmetric components
Statistics and Computing, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chew-Seng Chee, Yong Wang 0049
openaire +2 more sources
Transient Analysis of Symmetrical Networks by the Method of Symmetrical Components
Transactions of the American Institute of Electrical Engineers, 1940The canonical equations of a general, linear, bilateral symmetrical network of n meshes on which are impressed arbitrary mesh voltages are subjected to a Laplacian transformation. The transformed equations are then subjected to a symmetrical component transformation.
openaire +2 more sources
Processing of Symmetrical Components in Time-Domain
IEEE Transactions on Power Systems, 2007A novel system for decomposing a set of three-phase signals into its constituting symmetrical components is proposed. The system also estimates the frequency, the magnitudes and phase-angles of the sequence components. The system is useful for online estimation of instantaneous symmetrical components and their attributes in the presence of frequency ...
Masoud Karimi-Ghartemani +1 more
openaire +1 more source
Topological considerations on the symmetrical components transformation
IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 2000This paper presents the well-known symmetrical components transformation (SCT) by means of a different approach from the traditional matrix analysis: a topological lecture provides, in fact, the results obtained by the existing analysis in a more suitable form for network applications.
GANDELLI, ALESSANDRO +2 more
openaire +2 more sources
Symmetrical power factors and symmetrical reactive current components
2006 IEEE Power Engineering Society General Meeting, 2006This paper deals with the definition of power factor and reactive current component in a three-phase system. For a single-phase system, power factor and reactive current component are defined based on the phase-angle displacement between the measured voltage and current waveforms. This definition can be directly extended to balanced three-phase systems.
M. Karimi-Ghartemani, H. Karimi
openaire +1 more source
Polyphase symmetrical components revisited
2020 3rd International Conference on Emerging Trends in Electrical, Electronic and Communications Engineering (ELECOM), 2020In this paper, we revisit the notion of symmetrical components in electrical power systems that was introduced by Charles Legeyt Fortescue’s in his seminal paper "Method of Symmetrical Coordinates Applied to the Solution of Polyphase Networks, AIEE Transactions, vol. 37, part II, pp. 1027-1140,1918".
R. Armstrong, K. Busawon, P. Minns
openaire +1 more source
A symmetrical component synthesizer and analyzer
Electrical Engineering, 1954The basic formulas of the method of symmetrical components may be verified and the elliptical pattern produced by unbalanced currents can be analyzed to determine directly from the dimensions of the ellipse the magnitudes of the positive and negative sequence components by means of the polyphase oscilloscope developed at the State University of Iowa.
E. B. Kurtz, C. R. Lodge
openaire +1 more source
Principal Component Analysis of symmetric fuzzy data
Computational Statistics & Data Analysis, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
GIORDANI, Paolo, Henk A. L. Kiers
openaire +4 more sources
Metering of symmetrical components
Electrical Engineering, 1932CONTENTS of previous publications on metering of symmetrical components have been confined to the components of current and voltage in 3-phase 3-wire systems. This paper discusses the method of metering the positive and negative sequence power and energy in 3-phase 3-wire systems, and positive, negative, and zero sequence power and energy in 3-phase 4 ...
openaire +1 more source