Now showing items 193-204 of 204

• #### Time-Domain Goal-Oriented Adaptivity Using Pseudo-Dual Error Representations ﻿

(2017-12)
Goal-oriented adaptive algorithms produce optimal grids to solve challenging engineering problems. Recently, a novel error representation using (unconventional) pseudo-dual problems for goal-oriented adaptivity in the ...
• #### Towards efficient 5-axis flank CNC machining of free-form surfaces via fitting envelopes of surfaces of revolution ﻿

(2016-06-30)
We introduce a new method that approximates free-form surfaces by envelopes of one-parameter motions of surfaces of revolution. In the context of 5-axis computer numerically controlled (CNC) machining, we propose a flank ...
• #### Towards optimal advection using stretch-maximizing stream surfaces ﻿

(2017-03-01)
We investigate a class of stream surfaces that expand in time as much as possible. Given a vector field, we look for seed curves that locally propagate in time in a stretch-maximizing manner, i.e., curves that infinitesimally ...
• #### Uncertainty Quantification on the Inversion of Geosteering Measurements using Deep Learning ﻿

(2021-11-01)
We propose the use of a Deep Learning (DL) algorithm for the real-time inversion of electromagnetic measurements acquired during geosteering operations. Moreover, we show that when the DL algorithm is equipped with a ...
• #### Unified modeling language description of the object-oriented multi-scale adaptive finite element method for step-and-flash imprint lithography simulations ﻿

(2014-12-31)
In the first part of the paper we present the multi-scale simulation of the Step-and-Flash Imprint Lithography (SFIL), a modern patterning process. The simulation utilizes the hp adaptive Finite Element Method (hp-FEM) ...
• #### Using Covariance Matrix Adaptation Evolutionary Strategy to boost the search accuracy in hierarchic memetic computations ﻿

(2019-04)
Many global optimization problems arising naturally in science and engineering exhibit some form of intrinsic ill-posedness, such as multimodality and insensitivity. Severe ill-posedness precludes the use of standard ...
• #### The value of continuity: Refined isogeometric analysis and fast direct solvers ﻿

(2016-09-23)
We propose the use of highly continuous finite element spaces interconnected with low continuity hyperplanes to maximize the performance of direct solvers. Starting from a highly continuous Isogeometric Analysis (IGA) ...
• #### Variational Formulations for Explicit Runge-Kutta Methods ﻿

(2019-08)
Variational space-time formulations for partial di fferential equations have been of great interest in the last decades, among other things, because they allow to develop mesh-adaptive algorithms. Since it is known ...
• #### Vibration-Based SHM Strategy for a Real Time Alert System with Damage Location and Quantification ﻿

(2021-01)
We present a simple and fully automatable vibration-based Structural Health Monitoring (SHM) alert system. The proposed method consists in applying an Automated Frequency Domain Decomposition (AFDD) algorithm to obtain the ...
• #### Vibration-Based SHM Strategy for a Real Time Alert System with Damage Location and Quantification ﻿

(2021-01-11)
We present a simple and fully automatable vibration-based Structural Health Monitoring (SHM) alert system. The proposed method consists in applying an Automated Frequency Domain Decomposition (AFDD) algorithm to obtain the ...
• #### Vibration-based SHM strategy for a real time alert system with damage location and quantification ﻿

(2021-01)
We present a simple and fully automatable vibration-based Structural Health Monitoring (SHM) alert system. The proposed method consists in applying an Automated Frequency Domain Decomposition (AFDD) algorithm to obtain the ...
• #### Zindler-type hypersurfaces in R^4 ﻿

(2022-09-08)
In this paper the definition of Zindler-type hypersurfaces is introduced in $\mathbb{R}^4$ as a generalization of planar Zindler curves. After recalling some properties of planar Zindler curves, it is shown that Zindler ...