Search results for "roller"
showing 7 items of 247 documents
Measurement and communication interfaces for distributed generation in smart grids
2013
The aim of this work is to perform a feasibility study on the measurement and communication strategies for the development of a new generation of interface devices for distributed generators and their integration on smart grids. The communication system can use one or more technologies, at the various levels, creating a low cost network infrastructure, in the framework of a SCADA (Supervisory Control and Data Acquisition) architecture. As regards the measurements, the attention is focused on the anti-islanding protection, based on a hybrid solution, which makes use of local measurements and communications with the grid, at both MV and LV level by employing the PLC technology. Some simulatio…
A control strategy based on intelligent algorithm (PSO) to perform electrical stimulation systems
2017
International audience; Adjusting stimulation parameters using control strategy based on reliable mathematical model that can predict perfectly the muscle response, may improve the efficiency of Functional Electrical Stimulation (FES) systems. In the present project, we investigate the PID control tuning based on the Particle Swarm Optimization (PSO) algorithm at the first time in neuro-muscular systems for updating automatically the stimulation pulse amplitude to track a desired force profiles. In the beginning, The PSO algorithm is used to identify unknown force model parameters. Next, optimal PID gains are found by the same intelligent algorithm to improve the control system. The obtaine…
Seasonal variations in endurance performance, and aerobic and anaerobic variables in competitive cross country skiers
2016
Cross country skiing is known as an endurance sport and both aerobic and anaerobic systems have a major impact on performance in cross country skiers. Coaches and athletes use periodized training programs to optimize physiological adaptations and increase performance. Knowing how the major aerobic and anaerobic variables change during the course of one ski season will allow better implementation of training programs. This study examined variations in endurance performance, and how that relates to the variation in different aerobic and anaerobic variables. There were 19 subjects in the study, 11 male and 8 female. All subjects were competitive cross country skiers. The study took place over …
Modeling and Backstepping Control of the Electronic Throttle System
2013
Published version of an article in the journal: Mathematical Problems in Engineering. Also available from the publisher at: http://dx.doi.org/10.1155/2013/871674 Open access Electronic throttle is widely used in modern automotive engines. An electronic throttle system regulates the throttle plate angle by using a DC servo motor to adjust the inlet airflow rate of an internal combustion engine. Its application leads to improvements in vehicle drivability, fuel economy, and emissions. In this paper, by taking into account the dynamical behavior of the electronic throttle, the mechanism model is first built, and then the mechanism model is transformed into the state-space model. Based on the s…
Distance Learning with Hands-on Exercises : Physical Device vs. Simulator
2022
This Research to Practice Full Paper presents a comparison between a physical device and a simulator in a distance learning context. Programming embedded devices is very commonly taught using embedded hardware. One of the most used solutions is the Arduino microcontroller platform, which allows small embedded applications to be built and commanded in a programming language. However, there are some challenges in using physical devices for educational purposes. These challenges are particularly acute in distance learning or when the course needs to be scalable to a varying number of students. To address these challenges, we explored the potential of a simulator as a replacement for a physical…
Vienridu skrituļslidošanas apguves iespējas vispārizglītojošo skolu 6.klasēs
2021
Diplomdarbs “Vienrindu skrituļslidošanas apguves iespējas vispārizglītojošo skolu 6. klasēs”. Darba autore Sandra Jureviča, darba vadītājs lektore, Mg. sc. edu. Agita Klempere – Sipjagina. Darbs sastāv no ievada, teorētiskās daļas un empīriskā pētījuma, secinājumiem, literatūras saraksta un pielikumiem. Darba teorētiskajā daļā analizēta literatūra par vienrindu skrituļsldiošanas, kā pārvietošanās ar braucamlīdzekļiem, sporta veidu. Tā daudzveidību, pamattehnikas, pozitīvo ietekmi uz cilvēka ķermeni un mentālo veselību. Empīriskajā pētījumā, izmantojot kvantitatīvās un kvalitatīvās pētīšanas metodes, intervēti 6.klašu skolēni, izstrādāts 6 mācību stundu tematiskais plāns vienrindu skrituļsli…
Świętowanie na ulicy. Orszak Trzech Króli w zimowym pejzażu miasta
2017
Autorka zainteresowała się formami kolędniczymi, związanymi ze Świętem Trzech Króli (6 stycznia): tradycyjną grupą kolędniczą – Trzej królowie, nowszą – kolędnikami misyjnymi oraz organizowanym od 2009 r. na ulicach wielu miast w Polsce Orszakiem Trzech Króli, czyli oryginalną procesją uliczną. To hałaśliwe wydarzenie uliczne wpływa na odmienny charakter uczestniczenia w religijnym „misterium”: czytelny jest tu aspekt uteatralnienia ceremonii religijnej (przebrani aktorzy pierwszo- i drugoplanowi, rekwizytem powszechnym są papierowe korony królewskie, budowa scen, na których odbywają się koncerty amatorskich i profesjonalnych zespołów). Przemarsz ulicami miasta księży i osób wierzących, nau…