Now showing items 21-40 of 1021

• #### A General Framework for Prediction in Generalized Additive Models ﻿

(2020-01-13)
Smoothing techniques have become one of the most popular modelling approaches in the unidimensional and multidimensional setting. However, out-of-sample prediction in the context of smoothing models is still an open problem ...
• #### Modelling species presence–absence in the ecological niche theory framework using shape-constrained generalized additive models ﻿

(Ecological Modelling, 2020-01-13)
According to ecological niche theory, species response curves are unimodal with respect to environmental gradients. A variety of statistical methods have been developed for species distribution modelling. A general problem ...
• #### An Experimental Study in Adaptive Kernel Selection for Bayesian Optimization ﻿

(IEEE Access, 2019)
Bayesian Optimization has been widely used along with Gaussian Processes for solving expensive-to-evaluate black-box optimization problems. Overall, this approach has shown good results, and particularly for parameter ...
• #### Valley-dependent Lorentz force and Aharonov-Bohm phase in strained graphene p-n junction ﻿

(PHYSICAL REVIEW B, 2019)
Veselago lens focusing in graphene p-n junction is promising for realizations of new generation electron optics devices. However, the effect of the strain-induced Aharonov-Bohm interference in a p-n junction has not been ...
• #### Ab-initio calculations of strain induced relaxed shape armchair graphene nanoribbon ﻿

(PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2019)
An odd number of zigzag edges in armchair graphene nanoribbons and their mechanical properties (e.g., Young's modulus, Poisson ratio and shear modulus) have potential interest for bandgap engineering in graphene based ...
• #### Berry phase and spin precession without magnetic fields in semiconductor quantum dots ﻿

(EUROPEAN PHYSICAL JOURNAL B, 2019)
We investigate electric field control of spin manipulation through Berry phase in III-V semiconductor quantum dots. By utilizing degenerate and non-degenerate perturbation theories, we diagonalize the total Hamiltonian of ...
• #### Modeling microstructure evolution in shape memory alloy rods via Legendre wavelets collocation method ﻿

(JOURNAL OF MATERIALS SCIENCE, 2019)
Microstructures play an important role in the research on shape memory alloys (SMA). By using mathematical modeling tools to study microstructures, it is possible to predict the behaviors of these materials under applied ...
• #### Parametric Vibration Analysis of Pipes Conveying Fluid by Nonlinear Normal Modes and a Numerical Iterative Approach ﻿

(Advances in Applied Mathematics and Mechanics, 2019)
Nonlinear normal modes and a numerical iterative approach are applied to study the parametric vibrations of pipes conveying pulsating fluid as an example of gyroscopic continua. The nonlinear non-autonomous governing ...
• #### Spectral properties of hyperbolic nano-networks with tunable aggregation of simplexes ﻿

(Physical Review E, 2019)
Cooperative self-assembly is a ubiquitous phenomenon found in natural systems which is used for designing nanostructured materials with new functional features. Its origin and mechanisms, leading to improved functionality ...
• #### Coupled thermo-electro-mechanical models for thermal ablation of biological tissues and heat relaxation time effects ﻿

(Physics in Medicine & Biology, 2019)
Thermal ablation is a widely applied electrosurgical process in medical treatment of soft biological tissues. Numerical modeling and simulations play an important role in prediction of temperature distribution and ...
• #### Computational Analysis of Pulsed Radiofrequency Ablation in Treating Chronic Pain ﻿

(Lecture Notes in Computer Science book series (LNCS, volume 11539), 2019-06)
In this paper, a parametric study has been conducted to evaluate the effects of frequency and duration of the short burst pulses during pulsed radiofrequency ablation (RFA) in treating chronic pain. Affecting the brain and ...
• #### Radiofrequency Ablation for Treating Chronic Pain of Bones: Effects of Nerve Locations ﻿

(Bioinformatics and Biomedical Engineering, Springer, 2019-05)
The present study aims at evaluating the effects of target nerve location from the bone tissue during continuous radiofrequency ablation (RFA) for chronic pain relief. A generalized three-dimensional heterogeneous computational ...
• #### Functional Geometry of Human Connectomes ﻿

(SCIENTIFIC REPORTS, 2019-08)
Mapping the brain imaging data to networks, where nodes represent anatomical brain regions and edges indicate the occurrence of fiber tracts between them, has enabled an objective graph-theoretic analysis of human connectomes. ...
• #### Moderately Discontinuous Algebraic Topology for Metric Subanalytic Germs ﻿

(2019-10-31)
We have developed both a homology theory and a homotopy theory in the context of metric subanalytic germs (see Definition 2.1). The former is called MD homology and is covered in Chapter 2, which contains a paper that is ...
• #### Hydrodynamic identification of NAUTILUS FOWT platform from small scale tests ﻿

(2019)
A small-scale tank test campaign of the NAUTILUS offshore wind floating semisub-mersible platform was held at the Ifremer Deep Water Basin within the framework of the MaRINET 2 project. The support structure consists in ...
• #### Mooring system monitoring of offshore renewable energy floating platforms ﻿

(2019)
An appropriate schedule of the operations for the maintenance (both long and short term) of offshore renewable energy devices can be a crucial key factor for assessing the economic viability of marine energy projects. ...
• #### Advanced Mathematical Modelling of Pancreatic β-Cells ﻿

(2019-12-10)
Insulin-secreting pancreatic $\beta$-cells are responsible for maintaining the whole body glucose homeostasis. Dysfunction or loss of $\beta$-cell mass results in impaired insulin secretion and, in some cases, diabetes. ...
• #### Flow with $A_\infty(\mathbb R)$ density and transport equation in $\mathrm{BMO}(\mathbb R)$ ﻿

(Forum of Mathematics, Sigma, 2019-11)
We show that, if $b\in L^1(0,T;L^1_{\rm {loc}}(\mathbb R))$ has spatial derivative in the John-Nirenberg space ${\rm{BMO}}(\mathbb R)$, then it generates a unique flow $\phi(t,\cdot)$ which has an $A_\infty(\mathbb R)$ ...
• #### Bilinear Calderón--Zygmund theory on product spaces ﻿

(Journal des Math\'ematiques Pures et Appliqu\'ees, 2019-10)
We develop a wide general theory of bilinear bi-parameter singular integrals $T$. This includes general Calder\'on--Zygmund type principles in the bilinear bi-parameter setting: easier bounds, like estimates in the Banach ...
• #### Quantitative weighted estimates for Rubio de Francia's Littlewood--Paley square function ﻿

(Journal of Geometric Analysis, 2019-12)
We consider the Rubio de Francia's Littlewood--Paley square function associated with an arbitrary family of intervals in $\mathbb{R}$ with finite overlapping. Quantitative weighted estimates are obtained for this operator. ...