E
Edward Hæggström
Researcher at University of Helsinki
Publications - 327
Citations - 4866
Edward Hæggström is an academic researcher from University of Helsinki. The author has contributed to research in topics: White light interferometry & Ultrasonic sensor. The author has an hindex of 32, co-authored 302 publications receiving 4255 citations. Previous affiliations of Edward Hæggström include Åbo Akademi University & Helsinki Institute of Physics.
Papers
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Patent
Properties of a surface and subsurface structures with white light interferometry using photonic jets
Ivan Kassamakov,Edward Hæggström +1 more
TL;DR: In this article, an arrangement for determining four-dimensional properties of an interface (100) of an object, the arrangement comprising a light source (102), the arrangement comprises means (104) for forming photonic jets to be utilized in imaging of the interface, means (105a,b) for performing large field of view interferometric imaging and their (104, 106) combination.
Journal ArticleDOI
FEM-based time-reversal technique for an ultrasonic cleaning application
Oskari Tommiska,Joonas Mustonen,Petro Moilanen,Timo Rauhala,Maria Gritsevich,Ari Salmi,Edward Hæggström +6 more
TL;DR: In this paper , a finite element method based time-based time-reversal (FEM-TR) technique for controlling the acoustic field produced by an ultrasonic clamp-on cleaner is proposed.
Journal ArticleDOI
FEM-based time-reversal enhanced ultrasonic cleaning
Joonas Mustonen,Oskari Tommiska,Axi Holmström,Timo Rauhala,Petro Moilanen,Maria Gritsevich,Maria Gritsevich,Maria Gritsevich,Ari Salmi,Edward Hæggström +9 more
TL;DR: In this paper, the authors used FEM-simulated, time-reversed signals to focus ultrasound power onto a pre-determined location: a fouled pipe residing inside a Plexiglas container.
Journal ArticleDOI
Quasi-Dynamic Dissolution of Electrospun Polymeric Nanofibers Loaded with Piroxicam
Urve Paaver,Jyrki Heinämäki,Ivan Kassamakov,Tuomo Ylitalo,Edward Hæggström,Ivo Laidmäe,Karin Kogermann +6 more
TL;DR: It is shown that PRX recrystallizes in a microcrystalline form immediately after wetting of nanofibers, which could lead to enhanced dissolution of drug and enable a rapid, non-contacting, and non-destructive method for in situ monitoring the early-stage dissolution of nan ofibers and regional mapping of crystalline changes (re-crystallization) during wetting.
Patent
A method and a device for producing nanoparticles
Edward Hæggström,Jouko Yliruusi,Kai Falk,Heikki Räikkönen,Jenni Pessi,I. Lassila,Antti Meriläinen +6 more
TL;DR: In this paper, a method and a device for producing nanoparticles of organic substances, in particular by controlled expansion of pressurized solutions, is described. But this method is not suitable for the production of nanoparticles.