De sangvisuga

Invocatio: KREIKKAA Alpha & omega.

Controversiae de terminismo et irregeniti illuminatione

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

Grammatica Fennica

Ilmajoen rovastin Bartholdus Vhaelin (1667-1723) laatima suomen kielen kielioppi julkaistiin hänen kuolemansa jälkeen käsikirjoituksen pohjalta. Tässä kielen kuvauksessa esitetään mm. nominien sijamuodot, verbien taivutus, vokaalisointu ja astevaihtelu lähes nykyaikaisella tavalla. Vhael antaa tietoja myös ääntämisestä ja Suomen murteista. GRAMMATICA painettiin muuttamattomana uudestaan vielä vuonna 1821.

Peruskurssi lintujentunnistukseen

Kirjallisuusarvostelu

Modelling of ultrasound assisted mixing in Newtonian and non-Newtonian liquids

The purpose of this work is to obtain a better understanding of behaviour of possible ultrasound appliance on fluid media mixing. The research is done in the regard to Newtonian and non-Newtonian fluids. The process of ultrasound appliance on liquids is modelled in COMSOL Multiphysics software. The influence of ultrasound using is introduced as waveform equation. Turbulence modelling is fulfilled by the k-ε model in Newtonian fluid. The modeling of ultrasound assisted mixing in non-Newtonian fluids is based on the power law. To verify modelling results two practical methods are used: Particle Image Velocimetry and measurements of mixing time. Particle Image Velocimetry allows capturing of velocity flow field continuously and presents detailed depiction of liquid dynamics. The second way of verification is the comparison of mixing time of homogeneity. Experimentally achievement of mixing time is done by conductivity measurements. In modelling part mixing time is achieved by special module of COMSOL Multiphysics – the transport of diluted species. Both practical and modelling parts show similar radial mechanism of fluid flow under ultrasound appliance – from the horn tip fluid moves to the bottom and along the walls goes back. Velocity profiles are similar in modelling and experimental part in the case of Newtonian fluid. In the case of non-Newtonian fluid velocity profiles do not agree. The development track of ultrasound-assisted mixing modelling is presented in the thesis.

Tabulae Peutingerianae segmentum primum : ab ostiis Rheni bonnam vique ; Segmentum secundum : a Bonna usque ad Marcomannos

Julkaisussa: Accuratissima orbis antiqui delineatio, sive, geographia vetus, sacra & profana

Tabulae Peutingerianae segmentum III : a Marcomannis ad Sarmatas usque ; Segmentum IV : a Sarmatis usque ad Hamaxobios

Julkaisussa: Accuratissima orbis antiqui delineatio, sive, geographia vetus, sacra & profana

Tabulae Peutingerianae segmentum V : a Sarmatis Hamaxobiis usque ad Roxulanas ; Segmentum VI : a Sarmatis Roxulanis usque ad Parnacos

Julkaisussa: Accuratissima orbis antiqui delineatio, sive, geographia vetus, sacra & profana

Tabulae Peutingerianae segmentum VII : a Parnacis usque ad Paralocas Schythas ; Segmentum VIII : a Paralocis Schythis usque ad finem Asiae

Julkaisussa: Accuratissima orbis antiqui delineatio, sive, geographia vetus, sacra & profana

Tribuum Ephraim, Benjamin, et Dimidiae : Manasse intra Jordanem partes occidentales, et partes septentrionalis Dan et Juda

Julkaisussa: Accuratissima orbis antiqui delineatio, sive, geographia vetus, sacra & profana

Tribuus Aser, et partes occidentales tribuum Zabulon et Isachar

Julkaisussa: Accuratissima orbis antiqui delineatio, sive, geographia vetus, sacra & profana

Tabula itineraria ex illustri Peutingerorum Bibliotheca Quae Augustae Vindelicorum beneficio Marci Velseri septem-viri Augustani in lucem edita

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Radar cross-section measurement using the Doppler effect

In this Master Thesis we discuss issues related to the measurement of the effective scattering surface, based on the Doppler Effect. Modeling of the detected signal was made. Narrowband signal filtering using low-frequency amplifier was observed. Parameters of the proposed horn antennas were studied; radar cross section charts for three different objects were received.

Central Spitsbergen from sketch surveys made in 1896 and 1897

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Antenna feed design for omnidirectional broadband antenna

This thesis is about development broadband feed for two-mirror antenna system that match following requirements: beamwidth from 45 to 90 degrees at -3 dB level, circular polarization, absence of radiation to the lower hemisphere area. Literature review was done in the areas of the UWB antennas creation. During the work attempts were made to create a feed in a form of the quad ridged horn and "eleven" antennas. The latter is introduced as the most effective feed among all antennas discussed in thesis. Radiation patterns and other results for "eleven" antenna were obtained. Results were saved as far field sources and placed slightly below focal point into the two-mirror antenna system, because phase center of the “eleven” antenna is predominantly shifted upwards. Directivity patterns for the two-mirror system were obtained and the conclusions about the work results have been made