Search results for "motor"
showing 10 items of 3137 documents
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…
Stretch reflex modulation during exercise and fatigue
2003
Modulations of corticospinal excitability following rapid ankle dorsiflexion in skill- and endurance-trained athletes
2022
Abstract Purpose Long-term sports training, such as skill and endurance training, leads to specific neuroplasticity. However, it remains unclear if muscle stretch-induced proprioceptive feedback influences corticospinal facilitation/inhibition differently between skill- and endurance-trained athletes. This study investigated modulation of corticospinal excitability following rapid ankle dorsiflexion between well-trained skill and endurance athletes. Methods Ten skill- and ten endurance-trained athletes participated in the study. Corticospinal excitability was tested by single- and paired-pulse transcranial magnetic stimulations (TMS) at three different latencies following passive rapid ankl…
DYNAMIC ANALYSIS OF MOTORCYCLE BEHAVIOUR ON THE ROAD WITH STEERING PLATE STRUCTURAL OPTIMISATION
2005
Sensorimotoro funkciju novērtēšana cilindra un stūra testā pelēm pēc modelēta insulta
2021
Insults ir akūta neiroloģiska disfunkcija, kas izraisa neiroloģiskas, sensorimotoras un uzvedības izmaiņas. Lai izprastu insulta patoloģiskos mehānismus un izstrādātu jaunas terapijas, insults tiek modelēts eksperimentāli. Stūra un cilindra uzvedības testus izmanto, lai novērtētu sensorimotorās funkcijas grauzējiem. Maģistra darba mērķis ir izvērtēt cilindra un stūra testa pielietojumu modelēta insulta gadījumā pelēm divu mēnešu periodā. Pētījumā secināts - lai mazinātu peļu pierašanu un neaktivitāti, cilindra un stūra testus ieteicams veikt pārmaiņus, kā arī ne pārāk bieži. Pētījuma sākumā ieteicams veikt pirms operācijas griešanās preferences novērtēšanu. Precīzākai novērtēšanai ieteicams…
A school-based quasi-experimental intervention to improve students' motor competence and physical fitness
2022
Background Previous research has shown that school can be an influential context to promote students' physical activity engagement, physical fitness, and motor competence. The purpose of this study was to investigate the effectiveness of a 5-month-long intervention program that aimed to increase students' motor competence and physical fitness during school days. Methods A quasi-experimental intervention design with pre- and post-tests was implemented. Altogether 325 Finnish Grade 5 (Mage = 11.26, SD = .33) students from five schools participated in the study. At the beginning of the study, students were divided into experimental and control groups on purpose. The intervention consisted of t…
Päiväkotilasten minäkäsityksen sekä motorisen suorituskyvyn yhteydet Petroskoissa
2000
Effects of overnight military training and acute battle stress on the cognitive performance of soldiers in simulated urban combat
2022
Understanding the effect of stress, fatigue, and sleep deprivation on the ability to maintain an alert and attentive state in an ecologically valid setting is of importance as lapsing attention can, in many safety-critical professions, have devastating consequences. Here we studied the effect of close-quarters battle (CQ battle) exercise combined with overnight military training with sleep deprivation on cognitive performance, namely sustained attention and response inhibition. In addition, the effect of the CQ battle and overnight training on cardiac activity [heart rate and root mean square of the successive differences (RMSSD)] during the cognitive testing and the relationship between ca…
Voimaharjoittelun yhteydet hermo-lihasjärjestelmän suorituskykyyn, hormonipitoisuuksiin ja kehonkoostumukseen varusmieskoulutuksessa
2017
Tutkimuksen tausta ja tarkoitus. Suomalainen sotilas tarvitsee hyvää ammattitaitoa ja fyysistä suorituskykyä, ampumataitoa sekä maastossa liikkumisen taitoa. Puolustusvoimien fyysisen koulutuksen tärkeimmät osa-alueet ovat taistelu-, marssi- ja liikuntakoulutus, joista liikuntakoulutuksen määrä kokonaiskoulutusajasta on lähes puolet. Voimaharjoittelun tiedetään kehittävän lihaksiston sekä sen tukiosien, jänteiden ja sidekudosten voimaa, lisäävän tehoa, nopeutta ja motorista suorituskykyä sekä kasvattavan lihaksen poikkipinta-alaa ylläpitäen kehon rasvatonta massaa. Yleisen suorituskyvyn ja vammojen ennaltaehkäisyn lisäksi voimaharjoittelusta on hyötyä myös taakankantokykyyn, joka on sotilaa…
Hamstring Graft Preparation for ACL Reconstruction
2022
Anterior cruciate ligament (ACL) reconstruction represents one of the most common procedures in orthopedic surgery. It usually involves the harvest of both gracilis and semitendinosus tendons from the ipsilateral knee. Different methods of hamstring graft preparation have been proposed in recent years, to create an adequate graft diameter reducing morbidity linked to gracilis tendon harvesting procedure. More recently, the use of only 1 of the tendons (semitendinosus) in a tripled or quadrupled arrangement has been described, especially in an all-inside type of reconstruction. Having a thicker tendon with a quadrupled semitendinosus (ST), instead of double gracilis and ST enables to have a …