|
|
|
|
|
Elias Willberg, Olle Järv, Tuomas Väisänen and Tuuli Toivonen
The coronavirus disease 2019 (COVID-19) crisis resulted in unprecedented changes in the spatial mobility of people across societies due to the restrictions imposed. This also resulted in unexpected mobility and population dynamics that created a challeng...
ver más
|
|
|
|
|
|
|
|
|
|
|
Francis Gyakwaa, Matti Aula, Tuomas Alatarvas, Tero Vuolio, Qifeng Shu, Marko Huttula and Timo Fabritius
The presence of non-metallic inclusions (NMI) such as sulphides and oxides may be detrimental to the control of the steel casting process and product quality. The need for their identification and characterization is, therefore, urgent. This study uses t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ville M. Viitanen, Tuomas Sipilä, Antonio Sánchez-Caja and Timo Siikonen
The present method can be applied to study characteristics of hydrodynamic cavitation and its consequences, such as performance variations and noise, in propellers and rotating turbomachinery. Compressible formulation of the numerical method ensures a mo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Toni Kauppinen, Tuomas Vielma, Justin Salminen and Ulla Lassi
Manganese-containing anode sludge is a common side-product in the electrowinning of zinc. The anode sludge consists mainly of oxidized manganese, but also lesser amounts of lead, calcium, and other minor metals. The impurities present in the anode sludge...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jose Cucharero, Tuomas Hänninen and Tapio Lokki
Sound-absorbing materials are usually measured in a reverberation chamber (diffuse field condition) or in an impedance tube (normal sound incidence). In this paper, we show how angle-dependent absorption coefficients could be measured in a factory-type s...
ver más
|
|
|
|
|
|
|
|
|
|
|
Tuomas Yrttimaa, Ninni Saarinen, Ville Kankare, Niko Viljanen, Jari Hynynen, Saija Huuskonen, Markus Holopainen, Juha Hyyppä, Eija Honkavaara and Mikko Vastaranta
Terrestrial laser scanning (TLS) provides a detailed three-dimensional representation of surrounding forest structures. However, due to close-range hemispherical scanning geometry, the ability of TLS technique to comprehensively characterize all trees, a...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jose Cucharero, Tuomas Hänninen and Tapio Lokki
The reverberation of a room is often controlled by installing sound absorption panels to the ceiling and on the walls. The reduced reverberation is particularly important in classrooms to maximize the speech intelligibility and in open-plan offices to ma...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ville M. Viitanen, Antti Hynninen, Tuomas Sipilä and Timo Siikonen
In this paper we present results of delayed detached eddy simulation (DDES) and computational hydroacoustics (CHA) simulations of a marine propeller operating in a cavitation tunnel. DDES is carried out in both wetted and cavitating conditions, and we pe...
ver más
|
|
|
|
|
|
|
|
|
|
|
Kalle Kärhä, Tuomas Anttonen, Asko Poikela, Teijo Palander, Ari Laurén, Heli Peltola and Yrjö Nuutinen
s-
|
|
|
|
|
|
|
|
|
|
|
Niko Kulha, Leena Pasanen and Tuomas Aakala
Time series of repeat aerial photographs currently span decades in many regions. However, the lack of calibration data limits their use in forest change analysis. We propose an approach where we combine repeat aerial photography, tree-ring reconstruction...
ver más
|
|
|
|
|
|