Results 21 to 30 of about 3,795,820 (304)

A Vehicle Routing Problem with Periodic Replanning

open access: yesProceedings, 2018
In this work we focus on the problem of truck fleet management of the company GESUGA. This company is responsible of the collection and proper treatment of animals not intended for human consumption.
Guido Ignacio Novoa-Flores   +2 more
doaj   +1 more source

Influence of Pre-Oxidation on the Nitriding Process of Iron Alloys

open access: yesМеханика машин, механизмов и материалов, 2021
The article presents the results of studying the kinetics of oxidation of Fe-Cr, Fe-Al and iron alloys at temperatures of 450–550 °C. The influence of preliminary oxidation of these alloys on the nitriding process has been studied.
Vurgun F. Gahramanov, Elbey A. Aslanov
doaj   +1 more source

Sparse Semi-Functional Partial Linear Single-Index Regression

open access: yesProceedings, 2018
The variable selection problem is studied in the sparse semi-functional partial linear model, with single-index type influence of the functional covariate in the response. The penalized least squares procedure is employed for this task.
Silvia Novo   +2 more
doaj   +1 more source

Nonparametric Mean Estimation for Big-but-Biased Data

open access: yesProceedings, 2018
Some authors have recently warned about the risks of the sentence with enough data, the numbers speak for themselves. The problem of nonparametric statistical inference in big data under the presence of sampling bias is considered in this work.
Laura Borrajo, Ricardo Cao
doaj   +1 more source

Spatial-energy characteristics of focused modes of a metal terahertz laser resonator [PDF]

open access: yesРадиофизика и электроника, 2019
Subject and ppurpose. In this paper, the spatial-energy characteristics of laser beams with inhomogeneous spatial polarization with their moderate and sharp focusing are theoretically investigated.
S.A. Vlasenko   +3 more
doaj   +1 more source

Quasinormal Modes Beyond Kerr [PDF]

open access: yes, 2014
The quasinormal modes (QNMs) of a black hole spacetime are the free, decaying oscillations of the spacetime, and are well understood in the case of Kerr black holes.
E. Berti   +8 more
core   +2 more sources

Fast Algorithm for Impact Point Selection in Semiparametric Functional Models

open access: yesProceedings, 2019
A new sparse semiparametric functional model is proposed, which tries to incorporate the influence of two functional variables in a scalar response in a quite simple and interpretable way. One of the functional variables is included trough a single-index
Silvia Novo   +2 more
doaj   +1 more source

Surface modes and photonic modes in Casimir calculations for a compact cylinder [PDF]

open access: yes, 2007
A rigorous formulation of the problem of calculating the electromagnetic vacuum energy of an infinite dielectric cylinder is discussed. It is shown that the physically relevant spectrum of electromagnetic excitations includes the surface modes and ...
Nesterenko, V. V.
core   +1 more source

Marginally unstable Holmboe modes [PDF]

open access: yes, 2006
Marginally unstable Holmboe modes for smooth density and velocity profiles are studied. For a large family of flows and stratification that exhibit Holmboe instability, we show that the modes with phase velocity equal to the maximum or the minimum ...
Alexandros Alexakis   +5 more
core   +2 more sources

Vibration and noise reduction of pipelines using shape memory alloy

open access: yesScience and Engineering of Composite Materials, 2022
In this article, the pipeline design is introduced. The new pipe structure is made of new fiber metal laminates with the unidirectional composite and sheet metal (Ti–Ni alloy).
Qiu Ju, Stiharu Ion
doaj   +1 more source

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