Results 191 to 200 of about 6,523,303 (221)
Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing
Advanced Functional Materials, EarlyView.A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash +4 more
wiley +1 more source
The approximation of a totally positive band matrix by a strictly banded totally positive one [PDF]
Linear Algebra and Its Applications, 1982 AbstractEvery nonsingular totally positive m-banded matrix is shown to be the product of m totally positive one-banded matrices and, therefore, the limit of strictly m-banded totally positive matrices. This result is then extended to (bi)infinite m-banded totally positive matrices with linearly independent rows and columns.
Allan Pinkus
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The totally positive completion problem [PDF]
Linear Algebra and Its Applications, 2004 An n×n real matrix is said to be totally positive if every minor is non-negative. In this paper, we are interested in totally positive completion problems, that is, does a partial totally positive matrix have a totally positive matrix completion?
Cristina Jordan, Juan R Torregrosa
exaly +2 more sources
Sums of totally positive matrices [PDF]
Linear Algebra and Its Applications, 2004 It is shown that an arbitrary m×n positive matrix can be written as a sum of at most min{m,n} totally positive matrices, and that this is in general the best possible value for the number of summands.
D D Olesky
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Generating Totally Positive Toeplitz Matrix from an Upper Bidiagonal Matrix
Advances in Linear Algebra & Matrix Theory, 2015 In this paper, we construct one of the forms of totally positive Toeplitz matrices from upper or lower bidiagonal totally nonnegative matrix. In addition, some properties related to this matrix involving its factorization are presented.
Mohamed A. Ramadan, Mahmoud M. Abu Murad
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A new look at totally positive matrices [PDF]
Czechoslovak Mathematical Journal, 2016 summary:A close relationship between the class of totally positive matrices and anti-Monge matrices is used for suggesting a new direction for investigating totally positive matrices.
Miroslav Fiedler
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Efficient Recognition of Totally Nonnegative Matrix Cells
Foundations of Computational Mathematics, 2013 The space of m×p totally nonnegative real matrices has a stratification into totally nonnegative cells. The largest such cell is the space of totally positive matrices.
Stéphane Launois
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LINE INSERTIONS IN TOTALLY POSITIVE MATRIX FUNCTIONS
Mathematical Proceedings of the Royal Irish Academy, 2004An \(m\)-by-\(n\) matrix \(A\) is called totally positive (nonnegative) if every minor of \(A\) is positive (nonnegative). A matrix polynomial function is defined as a matrix whose entries are polynomials in a single variable, e. g., \(A(x)=(a_{ij}(x))\), in which each \(a_{ij}(x)\) is an independent polynomial function. A matrix polynomial function is
Johnson, Charles R., Smith, Ronald L.
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Science of The Total Environment, 2023
Source apportionments of urban aerosols identified with positive matrix factorization (PMF) are sensitive to input variables. So far, total elements were frequently included as effective factors in PMF-based source apportionment. We investigated the advances to involve soluble parts of elements in the source apportionment with four data sets of PM2.5 ...
Wenshuai, Li +14 more
openaire +2 more sources
Source apportionments of urban aerosols identified with positive matrix factorization (PMF) are sensitive to input variables. So far, total elements were frequently included as effective factors in PMF-based source apportionment. We investigated the advances to involve soluble parts of elements in the source apportionment with four data sets of PM2.5 ...
Wenshuai, Li +14 more
openaire +2 more sources