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Institution

Helsinki University of Technology

About: Helsinki University of Technology is a based out in . It is known for research contribution in the topics: Thin film & Vortex. The organization has 8962 authors who have published 20136 publications receiving 723787 citations. The organization is also known as: TKK & Teknillinen korkeakoulu.


Papers
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Journal ArticleDOI
TL;DR: SSG is superior to commercial voice synthesizers because it yields speech stimuli of a highly natural quality due to the contribution of the man-originating glottal excitation, making SSG suitable for cognitive experiments using speech sounds as stimuli.

160 citations

Journal ArticleDOI
TL;DR: The auditory cortex activation to a visual change occurred later in the visual than in the audiovisual experiment, suggesting that interaction between modalities accelerates the detection of visual change in speech.

159 citations

Journal ArticleDOI
TL;DR: In this paper, an analysis of a sample of 458 acquisitions demonstrates that although higher premia are paid for R&D-related assets, the premia do not cause negative abnormal returns.
Abstract: Several studies argue that paying high acquisition premia is value destroying for acquirer shareholders. There are studies that have even used the size of premium as a measure of low-quality decision making. This paper departs from the earlier research and shows that acquisition premia may be justified when target firms' resources are difficult for the market to value. An analysis of a sample of 458 acquisitions demonstrates that although higher premia are paid for R&D-related assets, the premia do not cause negative abnormal returns. Abnormal returns are more strongly affected by the overall target price levels independent of premia. Copyright © 2007 John Wiley & Sons, Ltd.

159 citations

Journal ArticleDOI
TL;DR: The results for several metals and semiconductors show that the GGA systematically improves the predictive power of positron lifetime calculations over those based on the LDA.
Abstract: First-principles calculations of positron-annihilation characteristics in solids are usually based on the local-density approximation (LDA) for positron-electron correlation. The LDA systematically overestimates the annihilation rate. As a remedy we introduce a generalized gradient approximation (GGA). Our results for several metals and semiconductors show that the GGA systematically improves the predictive power of positron lifetime calculations over those based on the LDA. We compare also the resulting positron energy levels in solids with data from slow-positron experiments.

159 citations

Journal ArticleDOI
TL;DR: The detection of magnetic mu rhythm in four subjects using a large-area seven-channel first-order superconducting quantum interference device gradiometer suggests that the mu rhythm is generated mainly at the primary somatosensory hand projection area.

159 citations


Authors

Showing all 8962 results

NameH-indexPapersCitations
Ashok Kumar1515654164086
Hannu Kurki-Suonio13843399607
Nicolas Gisin12582764298
Anne Lähteenmäki11648581977
Riitta Hari11149143873
Andreas Richter11076948262
Mika Sillanpää96101944260
Markku Leskelä9487636881
Ullrich Scherf9273536972
Mikko Ritala9158429934
Axel H. E. Müller8956430283
Karl Henrik Johansson88108933751
T. Poutanen8612033158
Elina Lindfors8642023846
Günter Breithardt8555433165
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2021154
2020153
2019155
201851
201714
201630