Results 21 to 30 of about 68,160 (260)
Mapping litter decomposition by remote-detected indicators
Annals of Geophysics, 2006 Leaf litter decomposition is a key process for the functioning of natural ecosystems. An important limiting factor for this process is detritus availability, which we have estimated by remote sensed indices of canopy green biomass (NDVI).
L. Rossi +7 more
doaj +1 more source
Hyperspectral Image Super-Resolution Algorithm Based on Graph Regular Tensor Ring Decomposition
Remote Sensing, 2023 This paper introduces a novel hyperspectral image super-resolution algorithm based on graph-regularized tensor ring decomposition aimed at resolving the challenges of hyperspectral image super-resolution.
Shasha Sun +5 more
doaj +1 more source
Spectral Decomposition of Signaling Networks [PDF]
2007 IEEE Symposium on Computational Intelligence and Bioinformatics and Computational Biology, 2007 Many dynamical processes can be represented as directed attributed graphs or Petri nets where relationships between various entities are explicitly expressed. Signaling networks modeled as Petri nets are one class of such graphical modeling and representations. These networks encode how different protein in specific compartments, interact to create new
Parvin, Bahram +7 more
openaire +2 more sources
The Källén-Lehmann representation in de Sitter spacetime
Journal of High Energy Physics, 2023 We study two-point functions of symmetric traceless local operators in the bulk of de Sitter spacetime. We derive the Källén-Lehmann spectral decomposition for any spin and show that unitarity implies its spectral densities are nonnegative.
Manuel Loparco +3 more
doaj +1 more source
Известия высших учебных заведений: Нефть и газ, 2021 Hydrocarbon reserves within the middle Jurassic deposits are predominantly classified as hard-to-recover. The legislation of the Russian Federation stimulates extraction of this type of reserves by providing tax incentives, which currently make field ...
E. F. Gaifulina +5 more
doaj +1 more source
IEEE Access, 2020 This paper proposes a curvature demodulation of Mach-Zehnder interferometer (MZI) sensors based on complete spectral information. An MZI sensor composed of two waist-enlarged single mode fibers (SMFs) was fabricated.
Mingyao Liu +9 more
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingThe 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
Spectral decomposition and Gelfand’s theorem [PDF]
Semigroup Forum, 2009 In this paper we are interested in spectral decomposition of an unbounded operator with discrete spectrum. We show that if $A$ generates a polynomially bounded $n$-times integrated group whose spectrum set $σ(A)=\{iλ_k; k\in\mathbb{Z}^* \}$ is discrete and satisfies $\sum \frac{1}{|λ_k|^\ellδ_k^n}
Driouich, A., El-Mennaoui, O., Jazar, M.
openaire +2 more sources
Tongxin xuebao, 2018 The unified relationship between the signal characteristic spectrum representation and the spectral decomposition for the stationary random signal was deeply studied.
Hongyu WANG, Tianshuang QIU
doaj +2 more sources
Duality and asymptotic spectral decompositions [PDF]
Pacific Journal of Mathematics, 1986 Decomposable operators in the sense of C. Foiaş are operators in a Banach space, for which a reasonably rich supply of invariant subspaces with reasonable spectral localization properties exist. A variety of this notion has been considered in the literature, and the introduction of this paper gives a good review of the main classes of these operators ...
openaire +2 more sources