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Influence of the addition of montmorillonite to the matrix of unidirectional glass fibre/epoxy composites on their mechanical and water absorption properties
(Elsevier, 2008-11)
Epoxy nanocomposites were used as matrix of glass fibre-reinforced composites. The dispersion of the clay in the epoxy was studied by X-ray diffraction analyses given strong evidence that the clay formed an intercalated ...
Origin of Fueguian-Patagonians: An approach to population history and structure using R matrix and matrix permutation methods
(Wiley-liss, Div John Wiley & Sons Inc, 2002-12)
A complicated history of isolation between Fueguian and Patagonian groups (originated by the appearance of the Straits of Magellan) as much as differences in population structure and life strategies constitute important ...
Quantitative matrix weighted estimates for certain singular integral operators
(Elsevier Science, 2022-05-01)
In this paper quantitative weighted matrix estimates for vector valued extensions of Lr′-Hörmander operators and rough singular integrals are studied. Strong type (p,p) estimates, endpoint estimates, and some new results ...
The contracted Schrödinger equation methodology: Study of the third-order correlation effects
(Springer, 2007-09)
In this paper we analyse the relevant role played by the third-order correlation terms in the contracted Schrödinger equation (CSE) methodology. The quality of the approximations used when evaluating these terms influence ...
Matrix isolation of the elusive fluorocarbonylsulfenyl fluoride molecule FC(O)SF
(American Chemical Society, 2013-02-25)
The syn and anti conformers of the hitherto unknown fluorocarbonylsulphenyl fluoride, FC(O)SF, were formed through the photochemical reactions between OCS and F2 , isolated in solid Ar. The reactions were followed by FTIR ...
Bispectrality and Time-Band-Limiting: Matrix valued polynomials
(Oxford University Press, 2018-05)
The subject of time-band-limiting, originating in signal processing, is dominated by the miracle that a naturallyappearing integral operator admits a commuting dierential one, allowing for a numerically ecient way to compute ...
World impact of kernel European Union 9 countries from Google matrix analysis of the world trade network
(Springer, 2021-05)
We use the United Nations COMTRADE database for analysis of the multiproduct world trade network. With this data, considered for years 2012–2018, we determined the world trade impact of the Kernel of EU 9 countries (KEU9), ...
Time and band limiting for matrix valued functions: An integral and a commuting differential operator
(IOP Publishing, 2017-01-09)
The problem of recovering a signal of finite duration from a piece of its Fourier transform was solved at Bell Labs in the 1960's, by exploiting a 'miracle': a certain naturally appearing integral operator commutes with ...
Parametrized solutions X of the system AXA=AEA and A^kEAX= XAEA^k for a matrix A having index k
(International Linear Algebra Society, 2019-11-14)
Let A and E be n × n given complex matrices. This paper provides a necessary and sufficient condition for the solvability to the matrix equation system given by AXA = AEA and AkEAX = XAEAk, for k being the index of A. In ...
Numerical methods for nanoscopic systems based on density matrix renormalization
(American Scientific Publishers, 2008-12)
The Density Matrix Renormalization Group (DMRG) has become a powerful numerical method that can be applied to nanoscopic and low-dimensional strongly correlated fermionic and bosonic systems. It allows for a very precise ...