Results 31 to 40 of about 197,517 (218)

SEPARATION OF DIFFRACTION SPECTRA BY PRINCIPAL COMPONENT METHOD BY THE EXAMPLE OF ARIFON DRUG

Российский технологический журнал, 2019
The article deals with the results of experimental studies on statistical processing of diffraction spectra of solid drugs for the purpose of their separation and identification. Diffractograms of the original and falsified drugs Arifon were used for the
R. V. Chekhova, V. M. Pyshniy, L. A. Pyankova, V. A. Elokhin   +3 more
doaj   +1 more source

Eigenvector Approximation Leading to Exponential Speedup of Quantum Eigenvalue Calculation [PDF]

, 2003
We present an efficient method for preparing the initial state required by the eigenvalue approximation quantum algorithm of Abrams and Lloyd. Our method can be applied when solving continuous Hermitian eigenproblems, e.g., the Schroedinger equation, on ...
Anargyros Papageorgiou, C. Zalka, G. Brassard, I. Babuska, M. A. Nielsen, Peter Jaksch, S. Lloyd   +6 more
core   +1 more source

Galerkin eigenvector approximations [PDF]

Mathematics of Computation, 2000
39 ...
openaire   +3 more sources

Eigenvector dreaming

Journal of Statistical Mechanics: Theory and Experiment
Abstract Among the performance-enhancing procedures for Hopfield-type networks that implement associative memory, Hebbian unlearning (HU) (or dreaming) strikes for its simplicity and lucid biological interpretation. However, it does not easily lend to a clear analytical understanding.
Benedetti, Marco, Carillo, Louis, Marinari, Enzo, Mézard, Marc   +3 more
openaire   +4 more sources

Approximate eigenvectors as preconditioner

Linear Algebra and its Applications, 2000
Given approximate eigenvector matrix of a Hermitian nonsingular matrix H, the spectral decomposition of H can be obtained by computing H´=*H and then diagonalizing H´. This work addresses the issue of numerical stability of the transition from H to H´ in finite precision arithmetic.
Krešimir Veselić, Zlatko Drmač
openaire   +3 more sources

Flexible gypsum mould applied in the mechanical system for blank of grouted ceramic handicrafts based on the radial movement of the sphere and connection by the principle of six-point positioning

The Journal of Engineering, 2020
In order to solve the problems of low production efficiency, poor quality of blanks, high labour intensity and inability to meet the market demand with the manual gypsum mould, a novel design of the gypsum mould to be applied into the automatic ...
Gu Lizhi, Huang Ehui, Song Jinling, Xu Jianmin, Zeng Nianfu, Fang Yuhao, Sun Wei, Chen Zhenhua   +7 more
doaj   +1 more source

New Results of Multi-Agent Controllability Under Equitable Partitions

IEEE Access, 2020
This paper studies the controllability of leader-follower multi-agent systems under fixed topology. The relationship between controllability and information communication topologies is characterized by taking advantage of equitable partitions.
Yanhong Lou, Zhijian Ji, Jijun Qu
doaj   +1 more source

Static quark-antiquark potential and Dirac eigenvector correlators

, 2008
We represent the Polyakov loop correlator as a spectral sum of correlators of eigenvectors of the lattice Dirac operator. This spectral representation is studied numerically using quenched SU(3) configurations below and above the deconfinement ...
C. Hagen, Christof Gattringer, E. Bilgici, Erek Bilgici, F. Synatschke, W. Söldner   +5 more
core   +1 more source

Integrality of Homfly (1,1)-tangle invariants [PDF]

, 2006
Given an invariant J(K) of a knot K, the corresponding (1,1)-tangle invariant J'(K)=J(K)/J(U) is defined as the quotient of J(K) by its value J(U) on the unknot U.
H R Morton, Le, Rudolph, Turaev, Wenzl
core   +3 more sources

Modified Kleene Star Algorithm Using Max-Plus Algebra and Its Application in the Railroad Scheduling Graphical User Interface

Computation, 2023
In max-plus algebra, some algorithms for determining the eigenvector of irreducible matrices are the power algorithm and the Kleene star algorithm. In this research, a modified Kleene star algorithm will be discussed to compensate for the disadvantages ...
Ema Carnia, Rinaldi Wilopo, Herlina Napitupulu, Nursanti Anggriani, Asep K. Supriatna   +4 more
doaj   +1 more source