Search results for "41"
showing 10 items of 3365 documents
Mixed l-/l1 fault detection observer design for positive switched systems with time-varying delay via delta operator approach
2014
Published version of an article in the journal: International Journal of Control, Automation and Systems. Also available from the publisher at: http://dx.doi.org/10.1007/s12555-013-0466-1 This paper investigates the problem of fault detection observer design for positive switched systems with time-varying delay via delta operator approach. A new fault sensitivity measure, called l-index, is proposed. The l- fault detection observer design and multi-objective l -/l1 fault detection observer design problems are addressed. Based on the average dwell time approach and the piecewise copositive type Lyapunov-Krasovskii functional method in delta domain, sufficient conditions for the existence of …
Switching to Fully Online Teaching and Learning of Mathematics: The Case of Norwegian Mathematics Lecturers and University Students During the Covid-…
2022
AbstractTowards the end of 2019, a novel coronavirus, known as COVID-19, was detected and quickly spread worldwide. The resulting pandemic led many countries to lockdown and teaching and learning switched to fully online provision. This study explores how Norwegian higher education lecturers and students of mathematics experienced online provision following this switch in March 2020 when the national lockdown was imposed. Data are generated and analysed using an exploratory sequential mixed methods approach that first entailed interviews with ten mathematics lecturers and six undergraduate students as the foundation for developing a survey instrument. The instrument was designed to explore …
Robust Switching Rule Design for Boost Converters with Uncertain Parameters and Disturbances
2013
Pubished version of an article in the journal: Abstract and Applied Analysis. Also available from the publisher at: http://dx.doi.org/10.1155/2013/120543 Open access This paper is concerned with the design problem of robust H∞ switching rule for Boost converters with uncertain parameters and disturbances. Firstly, the Boost converter is modeled as a switched affine linear system with uncertain parameters and disturbances. Then, using common Lyapunov function approach and linear matrix inequality (LMI) technique, a novel switching rule is proposed such that the H∞ model reference tracking performance is satisfied. Finally, a simulation result is provided to show the validity of the proposed …
Malware Detection in Internet of Things (IoT) Devices Using Deep Learning
2022
Internet of Things (IoT) devices usage is increasing exponentially with the spread of the internet. With the increasing capacity of data on IoT devices, these devices are becoming venerable to malware attacks; therefore, malware detection becomes an important issue in IoT devices. An effective, reliable, and time-efficient mechanism is required for the identification of sophisticated malware. Researchers have proposed multiple methods for malware detection in recent years, however, accurate detection remains a challenge. We propose a deep learning-based ensemble classification method for the detection of malware in IoT devices. It uses a three steps approach; in the first step, data is prep…
Robust design of a remote motion control system for hydraulic mechatronic drive with wireless operation
2021
Master´s thesis in Mechatronics (MAS500)
The Affordances of Reading/Writing on Paper and Digitally in Finland
2014
The aim of this study is to investigate the impact of digital technologies on reading and writing in Finland. The perceived affordances of reading and writing on paper and digitally are compared by analysing written essays collected from 25 communication students in 2013. Research design is replicated from a study of Fortunati and Vincent that concerns Italian students. Results show that Finnish students perceive more positive than negative affordances regarding reading on paper, while reading on screen attracts fewer virtues. In this respect, results are in line with the Italian study. Unlike in Italy, students in Finland value writing on a keyboard especially because it enables editing th…
Positive Turn in Elder-Care Workers' Views Toward Telecare Robots.
2022
AbstractRobots have been slowly but steadily introduced to welfare sectors. Our previous observations based on a large-scale survey study on Finnish elder-care workers in 2016 showed that while robots were perceived to be useful in certain telecare tasks, using robots may also prove to be incompatible with the care workers’ personal values. The current study presents the second wave of the survey data from 2020, with the same respondents (N = 190), and shows how these views have changed for the positive, including higher expectations of telecare robotization and decreased concerns over care robots’ compatibility with personal values. In a longitudinal analysis (Phase 1), the positive change…
La influencia del género y de la formación académica en la intención de emprender de los estudiantes de ciencias de la actividad física y el deporte
2016
Objeto: El objetivo del presente artículo es conocer si existen diferencias en las variables que explican la intención de emprender de los estudiantes universitarios de Ciencias de la Actividad Física y el Deporte atendiendo a la formación y al género de éstos. Diseño/metodología: Para conocer las intenciones de emprender y las distintas variables relacionadas con el emprendimiento se utilizó un cuestionario previamente validado. Éste fue administrado a 578 estudiantes pre-graduados (1er - 4º curso) y post-graduados de Ciencias de la Actividad Física y el Deporte de Valencia. Aportaciones y resultados: Se encontraron diferencias significativas (p≤0.05) en las variables que predicen la inten…
Estereotipos corporales en las imágenes de los libros de texto de inglés
2017
La educación es el camino para generar conductas positivas en niños y niñas y promover un ambiente social y armónico, así como respeto de los valores éticos y democráticos de nuestra sociedad. Un valor ético y democrático importante es la actitud no discriminante, sin prejuicios y no estereotipada. El objetivo del presente estudio fue analizar la frecuencia de ocurrencia de posibles estereotipos ligados a género, edad, raza y somatotipo presentes en las imágenes de los libros de texto de inglés del tercer ciclo de Primaria del sistema educativo español. Para ello, se ha realizado un estudio descriptivo con 1774 imágenes de 5 colecciones de libros de texto de la asignatura de inglés (Bugs Wo…
Sports clubs as settings for health promotion: fundamentals and an overview to research.
2014
This paper explores the efficacy and value of sports clubs as a setting for health promotion. Sports clubs for children and adolescents are the primary focus of the paper, and the aims are two-fold. Aims: Firstly, the paper aims to review the basis for and elements of the health promoting sports club (HPSC) concept. Secondly, the aim is to overview the international evolution of the HPSC concept and its usefulness in the research. The settings-based health promotion approach forms the basis for the HPSC concept and it is introduced first. Thereafter, both obligating and prospecting factors, to justify the importance for sports clubs to address health promotion, are expressed. Major prospec…