Results 21 to 30 of about 317,752 (229)

Regularization of Toda lattices by Hamiltonian reduction [PDF]

open access: yes, 1995
The Toda lattice defined by the Hamiltonian $H={1\over 2} \sum_{i=1}^n p_i^2 + \sum_{i=1}^{n-1} \nu_i e^{q_i-q_{i+1}}$ with $\nu_i\in \{ \pm 1\}$, which exhibits singular (blowing up) solutions if some of the $\nu_i=-1$, can be viewed as the reduced ...
Deift   +16 more
core   +2 more sources

Spectral Quadratic Variation Regularized Autoweighted Tensor Ring Decomposition for Hyperspectral Image Reconstruction

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The structure information of hyperspectral image (HSI) is well-characterized by tensors, surpassing the capabilities of traditional compressive sensing reconstruction models based on vectors and matrices.
Xinwei Wan   +4 more
doaj   +1 more source

A comparison of mental arithmetic performance in time and frequency domains

open access: yesFrontiers in Psychology, 2022
The Heisenberg-Gabor uncertainty principle defines the limits of information resolution in both time and frequency domains. The limit of resolution discloses unique properties of a time series by frequency decomposition.
Anmar Abdul-Rahman
doaj   +1 more source

Randomized Tensor Ring Decomposition and Its Application to Large-scale Data Reconstruction

open access: yes, 2019
Dimensionality reduction is an essential technique for multi-way large-scale data, i.e., tensor. Tensor ring (TR) decomposition has become popular due to its high representation ability and flexibility.
Cao, Jianting   +3 more
core   +1 more source

Domain decomposition and multilevel integration for fermions [PDF]

open access: yes, 2016
The numerical computation of many hadronic correlation functions is exceedingly difficult due to the exponentially decreasing signal-to-noise ratio with the distance between source and sink.
Cè, Marco   +2 more
core   +1 more source

Domain Decomposition CN-FDTD with Unsplit-Field PML for Time-Reversed Channel Analysis [PDF]

open access: yesRadioengineering, 2018
In this paper, an efficient domain decomposition (DD) technique is introduced into the implicit Crank-Nicolson finite-difference time-domain (CN-FDTD) method to analyze the channel characteristics of time reversal (TR) waves. As an unconditionally stable
X. K. Wei   +3 more
doaj  

Enhanced fertilization effect of a compost obtained from mixed herbs waste inoculated with novel strains of mesophilic bacteria [PDF]

open access: yesHemijska Industrija, 2017
Mixed medicinal plant waste was composted with addition of novel bacterial strains belonging to the genera Streptomyces, Paenybacillus, Bacillus and Hymenobacter. The composting was followed by assessment of chemical and biological parameters including C/
Dimitrijević Snežana M.   +5 more
doaj   +1 more source

Qubit representation of qudit states: correlations and state reconstruction

open access: yes, 2019
A method to establish a qubit decomposition of a general qudit state is presented. This new representation allows a geometrical depiction of any qudit state in the Bloch sphere.
Castaños, Octavio   +3 more
core   +1 more source

Functional Analysis and Exterior Calculus on Mixed-Dimensional Geometries [PDF]

open access: yes, 2019
We are interested in differential forms on mixed-dimensional geometries, in the sense of a domain containing sets of $d$-dimensional manifolds, structured hierarchically so that each $d$-dimensional manifold is contained in the boundary of one or more $d
Boon, Wietse M.   +2 more
core   +3 more sources

Research Progress on the Influence of Cathode Materials on Thermal Runaway Behavior of Lithium-Ion Batteries

open access: yesBatteries
The structure, chemical composition, thermal stability, and abuse responses of cathode materials are critical to the safety and economy of lithium-ion batteries (LIBs).
Yanru Yang   +4 more
doaj   +1 more source

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