Now showing items 1-6 of 6

    • Controlling the Nature of Etched Si Nanostructures: High- versus Low-Load Metal-Assisted Catalytic Etching (MACE) of Si Powders 

      Tamarov, Konstantin; Swanson, Joseph D; Unger, Bret A; Kolasinski, Kurt W; Ernst, Alexis T; Aindow, Mark; Lehto, Vesa-Pekka; Riikonen, Joakim (American Chemical Society (ACS), 2020)
      Metal-assisted catalytic etching (MACE) involving Ag deposited on Si particles has been reported as a facile method for the production of Si nanowires (Si NWs). We show that the structure of Si particles subjected to MACE ...
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    • Joint reconstruction in low dose multi-energy CT 

      Toivanen, Jussi; Meaney, Alexander; Siltanen, Samuli; Kolehmainen, Ville (American Institute of Mathematical Sciences (AIMS), 2020)
      Multi-energy CT takes advantage of the non-linearly varying at-tenuation properties of elemental media with respect to energy, enabling moreprecise material identification than single-energy CT. The increased precisioncomes ...
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    • Low-Load Metal-Assisted Catalytic Etching Produces Scalable Porosity in Si Powders 

      Tamarov, Konstantin; Kiviluoto, Riku; Swanson, Joseph D; Unger, Bret A; Ernst, Alexis T; Aindow, Mark; Riikonen, Joakim; Lehto, Vesa-Pekka; Kolasinski, Kurt W (American Chemical Society (ACS), 2020)
      The recently discovered low-load metal-assisted catalytic etching (LL-MACE) creates nanostructured Si with controllable and variable characteristics that distinguish this technique from the conventional high-load variant. ...
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    • Power spectral densities of nocturnal pulse oximetry signals differ in OSA patients with and without daytime sleepiness 

      Kainulainen, Samu; Töyräs, Juha; Oksenberg, Arie; Korkalainen, Henri; Afara, Isaac O; Leino, Akseli; Kalevo, Laura; Nikkonen, Sami; Gadoth, Natan; Kulkas, Antti; Myllymaa, Sami; Leppänen, Timo (Elsevier BV, 2020)
      Background As nocturnal hypoxemia and heart rate variability are associated with excessive daytime sleepiness (EDS) related to OSA, we hypothesize that the power spectral densities (PSD) of nocturnal pulse oximetry signals ...
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    • Spatial extent of cortical motor hotspot in navigated transcranial magnetic stimulation 

      Reijonen, Jusa; Pitkänen, Minna; Kallioniemi, Elisa; Mohammadi, Ali; Ilmoniemi, Risto J; Julkunen, Petro (Elsevier BV, 2020)
      Background Motor mapping with navigated transcranial magnetic stimulation (nTMS) requires defining a “hotspot”, a stimulation site consistently producing the highest-amplitude motor-evoked potentials (MEPs). The exact ...
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    • Trajectory-based analysis on the source areas and transportation pathways of atmospheric particulate matter over Eastern Finland 

      Väisänen, Olli; Hao, Liqing; Virtanen, Annele; Romakkaniemi, Sami (Informa UK Limited, 2020)
      In this study, we utilize aerosol mass spectrometer (AMS) and multi-angle absorption photometer (MAAP) measurements to assess the most predominant source regions of various atmospheric aerosol constituents transported to ...
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