Search results for "formation [jet]"
showing 10 items of 6317 documents
Terminoloģijas lietojums mobilo iekārtu lietošanas instrukcijās
2018
Maģistra darbā pētīts terminoloģijas lietojums mobilo iekārtu lietošanas instrukcijās. Darba mērķis ir izpētīt vienotas terminoloģijas pieejamību tehniskās nozares terminoloģijai, kura izmantota mobilo iekārtu lietošanas pamācībās. Pētījumā izmantotās metodes ir teorētisko materiālu (grāmatu un publikāciju) apskats un izmantotās terminoloģijas un tās tulkojumu analīze. Pētījuma rezultāti liecina, ka lielākajai daļai no atlasītajiem terminiem nav pieejams vienots tulkojums, vai termins darināts latviešu valodā, kas secīgi noved pie situācijas, kurā tulkotājs kļūst par valodnieku, kuram jādarina terminoloģiskās frāzes.
Ecologists overestimate the importance of predictor variables in model averaging: a plea for cautious interpretations.
2014
Abstract: Information-theory procedures are powerful tools for multimodel inference and are now standard methods in ecology. When performing model averaging on a given set of models, the importance of a predictor variable is commonly estimated by summing the weights of models where the variable appears, the so-called sum of weights (SW). However, SWs have received little methodological attention and are frequently misinterpreted. We assessed the reliability of SW by performing model selection and averaging on simulated data sets including variables strongly and weakly correlated to the response variable and a variable unrelated to the response. Our aim was to investigate how useful SWs are …
An EEMD Aided Comparison of Time Histories and Its Application in Vehicle Safety
2017
In the context of signal processing, the comparison of time histories is required for different purposes, especially for the model validation of vehicle safety. Most of the existing metrics focus on the mathematical value only. Therefore, they suffer the measuring errors, disturbance, and uncertainties and can hardly achieve a stable result with a clear physical interpretation. This paper proposes a novel scheme of time histories comparison to be used in vehicle safety analysis. More specifically, each signal for comparison is decomposed into a trend signal and several intrinsic mode functions (IMFs) by ensemble empirical mode decomposition. The trend signals reflect the general variation a…
Introduction to next-generation engineering: Being human in the information society
2022
While adopting Information Technology (IT) may have been a goal in itself in the past, during the last decade the emphasis has shifted, and IT has instead become a tool that enables us to realize other needs. This also sets new requirements for IT education: skills in software engineering and computer science alone do not provide students with the professional abilities they will need after graduation. To answer this call, the University of Jyväskylä launched in autumn 2021 a new engineering B.Sc. and M.Sc. degree program in Information and Software Engineering with close ties to the Humanities. The degree program was established on three cornerstones: 1) the ability to implement IT systems…
Design and Performance Evaluation of a High Power-Density EMI Filter for PWM Inverter-Fed Induction-Motor Drives
2016
This paper presents the design of an electromagnetic interference (EMI) filter for a low-voltage high-current induction-motor drives supplied by dc power grids. In order to effectively design the EMI filter, a suitable common-mode/differential-mode (CM/DM) separation technique has been used. Due to the high operating currents, the software-based separation technique using time-domain measurements has been applied. The proposed technique allows the CM and DM sections of the EMI filter to be properly selected in a more economical way, i.e., without the need of a dedicated hardware or costly radio frequency (RF) instrumentation. The design has been done according to a power-density criterion. …
Dynamic Functional Connectivity in the Musical Brain
2019
Musical training causes structural and functional changes in the brain due to its sensory-motor demands. This leads to differences in how musicians perceive and process music as compared to non-musicians, thereby providing insights into brain adaptations and plasticity. Correlational studies and network analysis investigations have indicated the presence of large-scale brain networks involved in the processing of music and have highlighted differences between musicians and non-musicians. However, studies on functional connectivity in the brain during music listening tasks have thus far focused solely on static network analysis. Dynamic Functional Connectivity (DFC) studies have lately been …
Réseaux de distribution de l’énergie et sobriété énergétique des territoires, les apports d’une approche thermodynamique et métabolique des systèmes …
2017
Dans le contexte de transition énergétique et de crise environnementale actuel, les intérêts des approches territoriales et systémiques de l’énergie semblent aujourd’hui admis. Cependant et malgré les nombreuses avancées dans les domaines technologiques, en matière d’urbanisme et d’aménagement ou bien encore en termes d’approches psycho-sociales et comportementales, les courbes de consommations énergétiques peinent à s’infléchir. Fort de ce constat, nous posons l’hypothèse, sur la base d’éléments théoriques empruntés à la thermodynamique et à la biologie, du rôle potentiel que pourraient jouer les réseaux de distribution énergétique, leurs caractéristiques, leur morphologie et leur dynamiqu…
Machine Learning Models for Measuring Syntax Complexity of English Text
2019
In this paper we propose a methodology to assess the syntax complexity of a sentence representing it as sequence of parts-of-speech and comparing Recurrent Neural Networks and Support Vector Machine. We have carried out experiments in English language which are compared with previous results obtained for the Italian one.
Nauka pisania w języku obcym a stymulowanie rozwoju kompetencji lingwistycznych: gramatycznych i leksykalnych
2021
W artykule przedstawiono alternatywny sposób pracy nad umiejętnością pisania w języku obcym, ukierunkowany nie tylko na czynne przyswojenie wzorców tekstowych właściwych dla danej społeczności językowo-kulturowej oraz uaktywnianie struktur językowych (gramatycznych, leksykalnych), ale także na doskonalenie kompetencji lingwistycznej. Punkt wyjścia stanowiło założenie, że analiza tekstów pisanych w języku obcym pozwala rozpoznać problemy ich autorów z przyswojeniem systemu leksykalnego i gramatycznego danego języka, nie tylko niepoprawne stosowanie struktur i form gramatycznych (co świadczy o ich nieopanowaniu), ale i brak w tekstach konstrukcji i form, którymi uczący powinien już posługiwać…
A Navigation and Augmented Reality System for Visually Impaired People
2021
In recent years, we have assisted with an impressive advance in augmented reality systems and computer vision algorithms, based on image processing and artificial intelligence. Thanks to these technologies, mainstream smartphones are able to estimate their own motion in 3D space with high accuracy. In this paper, we exploit such technologies to support the autonomous mobility of people with visual disabilities, identifying pre-defined virtual paths and providing context information, reducing the distance between the digital and real worlds. In particular, we present ARIANNA+, an extension of ARIANNA, a system explicitly designed for visually impaired people for indoor and outdoor localizati…