Results 121 to 130 of about 5,774,152 (370)
Agribusiness, EarlyView.ABSTRACT This study combines sensory analysis and stated preference valuation techniques to assess the monetary value of organoleptic attributes of new tomato varieties. The tomatoes evaluated included two new varieties adapted to South Texas growing conditions, a commercial check, and tomatoes imported from Mexico.
Samuel D. Zapata +3 more
wiley +1 more source
Homogenization of a Continuously Microperiodic Multidimensional Medium
Trends in Computational and Applied Mathematics, 2018 The asymptotic homogenization method is applied to obtain formal asymptotic solution and the homogenized solution of a Dirichlet boundary-value problem for an elliptic equation with rapidly os- cillating coefficients.
Marcos Pinheiro Lima +2 more
doaj +1 more source
On positive definite distributions
, 2020 We provide necessary and sufficient conditions for a tempered distribution $F\in S'(R)$ to be positive definite. A generalized Cauchy transform $\widetilde{F}$ of $F$ is used as a numerical continuation of $F$ to the open upper and lower complex half-planes in $C$.
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Semigroups with Positive Definite Structure [PDF]
Proceedings of the American Mathematical Society, 1973 Let G G be a semigroup with the identity 1 and an involution x → x ∗ x \to {x^ \ast } . One can define a complex-valued and an H ∗ {H^ \ast } -algebra valued positive definite function on
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Integral Representations of Positive Definite Functions. II [PDF]
, 1954 A. Devinatz
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Agribusiness, EarlyView.ABSTRACT Vending is an important sector in the daily lives of many people, and coffee is the most frequently consumed product in the European market. Like many other sectors, vending is responding to the challenge of sustainable development by taking various actions, such as offering increasingly ecologically sound coffee while maintaining/improving ...
Alberto Bertossi +2 more
wiley +1 more source
A Comparison of Several Methods for Inverting Large Symmetric Positive Definite Matrices [PDF]
, 1964 M. H. Lietzke +2 more
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, 2010 A semi-Lagrangian advection scheme is developed for falling hydrometeors in hopes of replacing the conventional Eulerian scheme that has been widely used in the cloud microphysics scheme of numerical atmospheric models. This semi-Lagrangian scheme uses a
H. Juang, Song‐You Hong
semanticscholar +1 more source
On determination of positive-definiteness for an anisotropic operator [PDF]
Positivity, 2015 We study the positive-definiteness of a family of $L^2(\mathbf{R})$ integral operators with kernel $K_{t, a}(x, y) = (1 + (x - y)^2 + a(x^2 + y^2)^t)^{-1}$, with $t > 0$ and $a > 0$. When $0 < t \le 1$, the known theory of positive-definite kernels ensures that the operator is positive-definite; when $t > 1$, constructions disprove positive-
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Solving systems of linear equations with a positive definite, symmetric, but possibly ill-conditioned matrix [PDF]
, 1955 James D. Riley
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