Balladi op. 10 no. 1 d

Soitinnus: piano.

Study of a vapor-compression air-conditioning system for jetliners

Most modern passenger aeroplanes use air cycle cooling. A high-speed air cycle is a reliable and light option, but not very efficient. This thesis presents research work done to design a novel vapour cooling cycle for aeroplanes. Due to advancements in high-speed permanent magnet motors, the vapour cycle is seen as a competitive option for the air cycle in aeroplanes. The aerospace industry places tighter demands on the weight, reliability and environmental effects of the machinery than those met by conventional chillers, and thus modifications to conventional design are needed. The thesis is divided into four parts: the initial screening of the working fluid, 1-D design and performance values of the compressor, 1-D off-design value predictions of the compressor and the 3-D design of the compressor. The R245fa was selected as the working fluid based the study. The off-design range of the compressor was predicted to be wide and suitable for the application. The air-conditioning system developed is considerably smaller than previous designs using centrifugal compressors.

De sono

Invocatio: Q.F.S.F.Q.

De miraculis aquarum

Invocatio: Auxilio numinis divini.

APROS model validation in case of fast transients in a boiling water reactor

This Master´s thesis investigates the performance of the Olkiluoto 1 and 2 APROS model in case of fast transients. The thesis includes a general description of the Olkiluoto 1 and 2 nuclear power plants and of the most important safety systems. The theoretical background of the APROS code as well as the scope and the content of the Olkiluoto 1 and 2 APROS model are also described. The event sequences of the anticipated operation transients considered in the thesis are presented in detail as they will form the basis for the analysis of the APROS calculation results. The calculated fast operational transient situations comprise loss-of-load cases and two cases related to a inadvertent closure of one main steam isolation valve. As part of the thesis work, the inaccurate initial data values found in the original 1-D reactor core model were corrected. The input data needed for the creation of a more accurate 3-D core model were defined. The analysis of the APROS calculation results showed that while the main results were in good accordance with the measured plant data, also differences were detected. These differences were found to be caused by deficiencies and uncertainties related to the calculation model. According to the results the reactor core and the feedwater systems cause most of the differences between the calculated and measured values. Based on these findings, it will be possible to develop the APROS model further to make it a reliable and accurate tool for the analysis of the operational transients and possible plant modifications.

Comparison between dSPACE and NI systems based on real-time intelligent control of a teleoperated hydraulic servo system

The Laboratory of Intelligent Machine researches and develops energy-efficient power transmissions and automation for mobile construction machines and industrial processes. The laboratory's particular areas of expertise include mechatronic machine design using virtual technologies and simulators and demanding industrial robotics. The laboratory has collaborated extensively with industrial actors and it has participated in significant international research projects, particularly in the field of robotics. For years, dSPACE tools were the lonely hardware which was used in the lab to develop different control algorithms in real-time. dSPACE's hardware systems are in widespread use in the automotive industry and are also employed in drives, aerospace, and industrial automation. But new competitors are developing new sophisticated systems and their features convinced the laboratory to test new products. One of these competitors is National Instrument (NI). In order to get to know the specifications and capabilities of NI tools, an agreement was made to test a NI evolutionary system. This system is used to control a 1-D hydraulic slider. The objective of this research project is to develop a control scheme for the teleoperation of a hydraulically driven manipulator, and to implement a control algorithm between human and machine interaction, and machine and task environment interaction both on NI and dSPACE systems simultaneously and to compare the results.

Philosophiae practicae

Esipuhe.

Meditationes sancti evangelii 68

Variantti A.

Panhuilunsoiton peruskurssien 1-3 sekä I/D-tason kurssisuoritusvaatimukset sekä ohjelmistoluettelo

Koska panhuilu on vasta "aloitteleva" musiikkioppilaitossoitin, sille ei vielä ole valmiita tasokurssiohjelmistotaulukoita. Panhuilunsoiton opetuksen aloittamisen edellytyksenä on kurssivaatimusten ja ohjelmistoluetteloiden laatiminen myös perusasteelle ja musiikkiopistoasteelle (I/D). Työn tarkoituksena oli siis laatia panhuilulle peruskurssien 1-3 ja I-tason kurssivaatimukset ja tutkinto-ohjelmistoluettelot. Työ sisältää myös tasosuoritusten arviointiohjeet ja osion opettajalle, jossa esitellään tasosuoritukseen sopivia esimerkkisävellyksiä soitinkoulujen, etydivihkojen ja kokoelmavihkojen sisällöistä. Näin opettaja tai itsenäisesti opiskeleva harrastaja pystyy sijoittamaan muitakin teoksia eri suoritustasoille. Aineisto koostuu panhuilulle sävelletyn materiaalin lisäksi oboe-, poikkihuilu-, nokkahuilu-, ja viulukirjallisuudesta, joita olen kerännyt Sibelius-Akatemian, Helsingin Konservatorion sekä Helsingin kaupunginkirjastoista. Nimittäin varsinaisesti panhuilulle sävellettyjä kappaleita on erittäin vähän ja ne ovat vaihtelevan tasoisia. Tasosuoritusten arviointiohjeita käyttäen keräsin kirjastoista tai ostin sopivat nuottimateriaalit ja mapitin kaikki kokoelmavihkot, soitinkoulut ja säestykselliset sävellykset. Tämän jälkeen lajittelin materiaalit omiin kansioihinsa tasokurssien mukaan. Ohjelmistotaulukot ovat eriteltyinä kunkin tasokurssin mukaan. Ne sisältävät seuraavia osa-alueita: soitinkoulut, etydit, kokoelmat, säestykselliset sävellykset, sarjat, konsertot, sonaatit ja kamarimusiikki. Näiden lisäksi jokaiselle tasokurssille on mukana asteikkovaatimukset. Opinnäytetyö on samalla pieni ohjekirja panhuiluopettajalle tai itsenäisesti opiskelevalle oppilaalle: hän saa tietoa panhuilun hengitystekniikasta ja ansatsista verrattuna poikkihuiluun ja oboeen sekä siitä, mitä liikkeitä hänen tulisi varoa soittaessaan panhuilua. Tämän tyyppinen tieto on tärkeää, sillä panhuilu on hyvin fyysinen soitin ja jos sitä "väärinkäyttää", se saattaa aiheuttaa nuorelle oppilaalle pysyviä niskavammoja tms. Osaa aineistosta olen päässyt kokeilemaan eritasoisilla ja -ikäisillä oppilailla Raahessa kesällä 2006 pidetyllä panhuiluleirillä.