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Now showing items 1571-1580 of 1621
Improvement of boring operations by means of mode coupling effect
(Elsevier, 2022-05)
Boring bars are inherently slender tools which are prone to show chatter problems due to their low dynamic stiffness and damping, being this problem their main limitation in productivity. The onset of chatter is mainly ...
A Finite Element based Deep Learning solver for parametric PDEs
(Elsevier, 2022-03)
We introduce a dynamic Deep Learning (DL) architecture based on the Finite Element Method (FEM) to solve linear parametric Partial Differential Equations (PDEs). The connections between neurons in the architecture mimic ...
Sphingomyelin: What is it good for?
(Elsevier, 2022-12)
Sphingomyelin has been considered as a merely structural lipid for many years. However, this organelle-specific lipid has many other roles, including increasing membrane molecular order, acting as a source of ceramide in ...
On quadrature rules for solving Partial Differential Equations using Neural Networks
(Elsevier, 2022-04)
Neural Networks have been widely used to solve Partial Differential Equations. These methods require to approximate definite integrals using quadrature rules. Here, we illustrate via 1D numerical examples the quadrature ...
Damping in ram based vertical lathes and portal machines
(Elsevier, 2022)
Chatter vibrations originated by the machine structure are a major limitation for the productivity of ram based machines performing heavy duty operations. Consequently, the damping of the machine structure has a capital ...
Validity evidences for scoring procedures of a writing assessment task. A case study on consistency, reliability, unidimensionality and prediction accuracy
(Elsevier, 2022-10)
Scoring is a fundamental step in the assessment of writing performance. The choice of the scoring procedure as well as the adoption of a discrepancy resolution method can impact the psychometric properties of the scores ...
The dyadic parent-child interaction coding system (DPICS): Negative talk as an indicator of dysfunctional mother-child interaction
(Elsevier, 2022-12)
Background
The Dyadic Parent-Child Interaction Coding System (DPICS-IV) is a widely used observational instrument that assesses Parent-child interaction (PCI) quality. However, studies specifically examining its ...
Probabilistic Owen-Shapley spatial power indices
(Elsevier, 2022-11)
In this paper we study probabilistic Owen-Shapley spatial power indices, which are generalizations of the Owen-Shapley spatial power index (1977). We provide an explicit formula for calculating these spatial indices for ...
Cellular patterns and dry convection in textured dust storms at the edge of Mars North Polar Cap
(Elsevier, 2022-11)
We present a study of textured local dust storms that develop at the northern polar cap boundary on Mars springtime. We have used images obtained with VMC and HRSC cameras onboard Mars Express and MARCI on MRO to analyze ...
Cracking of plastic pyrolysis oil over FCC equilibrium catalysts to produce fuels: Kinetic modeling
(Elsevier, 2022-05)
The kinetics of the catalytic cracking of plastic pyrolysis oil (PPO) over three FCC (fluid catalytic cracking) equilibrium commercial catalysts has been modeled. The PPO comes from the fast pyrolysis of high-density ...