Browsing Luonnontieteiden, metsätieteiden ja tekniikan tiedekunta by Title

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    • Deep convolutional neural networks for estimating porous material parameters with ultrasound tomography 

      Lähivaara, Timo; Kärkkäinen, Leo; Huttunen, Janne MJ; Hesthaven, Jan S (Acoustical Society of America (ASA), 2018)
      The feasibility of data based machine learning applied to ultrasound tomography is studied to estimate water-saturated porous material parameters. In this work, the data to train the neural networks is simulated by solving ...
      Tieteelliset aikakauslehtiartikkelit

    • Deep generative variational autoencoding for replay spoof detection in automatic speaker verification 

      Chettri, Bhusan; Kinnunen, Tomi; Benetos, Emmanouil (Elsevier BV, 2020)
      Automatic speaker verification (ASV) systems are highly vulnerable to presentation attacks, also called spoofing attacks. Replay is among the simplest attacks to mount — yet difficult to detect reliably. The generalization ...
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    • Deep learning enables sleep staging from photoplethysmogram for patients with suspected sleep apnea 

      Korkalainen, H; Aakko, J; Duce, B; Kainulainen, S; Leino, A; Nikkonen, S; Afara, I O; Myllymaa, S; Töyräs, J; Leppänen, T (Oxford University Press (OUP), 2020)
      Study Objectives Accurate identification of sleep stages is essential in the diagnosis of sleep disorders (e.g. obstructive sleep apnea [OSA]) but relies on labor-intensive electroencephalogram (EEG)-based manual scoring. ...
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    • Deep Learning for Dental Hyperspectral Image Analysis 

      Boiko, Oleksandr; Hyttinen, Joni; Fält, Pauli; Jäsberg, Heli; Mirhashemi, Arash; Kullaa, Arja; Hauta-Kasari, Markku (Society for Imaging Science & Technology, 2019)
      The aim of this work is automatic and efficient detection of medically-relevant features from oral and dental hyperspectral images by applying up-to-date deep learning convolutional neural network techniques. This will ...
      Artikkelit ja abstraktit tieteellisissä konferenssijulkaisuissa

    • Deep learning in photoacoustic tomography utilizing variational autoencoders 

      Sahlström, Teemu; Tarvainen, Tanja (Society of Photo-Optical Instrumentation Engineers (SPIE), 2023)

    • Deficient Values of Solutions of Linear Differential Equations 

      Gundersen, Gary G; Heittokangas, Janne; Wen, Zhi-Tao (Springer Science and Business Media LLC, 2021)
      Differential equations of the form f′′+A(z)f′+B(z)f=0 (*) are considered, where A(z) and B(z)≢0 are entire functions. The Lindelöf function is used to show that for any ρ∈(1/2,∞), there exists an equation of the form (*) ...
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    • Definition of a Learning Analytics Ecosystem for the ILEDA Project Piloting 

      Conde, Miguel; Georgiev, Atanas; López-Pernas, Sonsoles; Jovic, Jovana; Crespo-Martínez, Ignacio; Raspopovic Milic, Miroslava; Saqr, Mohammed; Pancheva, Katina (Springer Nature Switzerland AG, 2023)
      Understanding how students progress in their learning is an important step towards achieving the success of the educational process. One way of understanding student progress is by using learning analytics methods on ...

    • Deformation behaviors and mechanical impairments of tissue cracks in immature and mature cartilages 

      Moo, Eng Kuan; Al-Saffar, Yasir; Le, Tina; Seerattan, Ruth A; Pingguan-Murphy, Belinda; Korhonen, Rami K; Herzog, Walter (Wiley, 2021)
      Degeneration of articular cartilage is often triggered by a small tissue crack. As cartilage structure and composition change with age, the mechanics of cracked cartilage may depend on the tissue age, but this relationship ...
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    • Degradation potentials of dissolved organic carbon (DOC) from thawed permafrost peat 

      Selvam BP; Lapierre JF; Guillemette F; Voigt C; Lamprecht RE; Biasi C; Christensen TR; Martikainen PJ; Berggren M (Springer Nature, 2017)
      Global warming can substantially affect the export of dissolved organic carbon (DOC) from peat-permafrost to aquatic systems. The direct degradability of such peat-derived DOC, however, is poorly constrained because previous ...
      info:eu-repo/semantics/article

    • Delivering Integrated Pest and Pollinator Management (IPPM) 

      Egan, Paul A; Dicks, Lynn V; Hokkanen, Heikki M T; Stenberg Johan A (Elsevier BV, 2020)
      The need to reduce pollinator exposure to harmful pesticides has led to calls to expedite the adoption of integrated pest management (IPM). We make the case that IPM is not explicitly ‘pollinator friendly’, but rather must ...
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    • Dendritic Carbene Metal Carbazole Complexes as Photoemitters for Fully Solution-Processed OLEDs 

      Romanov, Alexander S; Yang, Le; Jones, Saul T E; Di, Dawei; Morley, Olivia J; Morley Bluebell, H Morley; Reponen, Antti P M; Linnolahti, Mikko; Credgington, Dan; Bochmann, Manfred (American Chemical Society (ACS), 2019)
      Light-emitting carbene-metal amide complexes bearing first- and second-generation carbazole dendron ligands are reported, (AdL)M(Gn), (M = Cu and Au; Gn carbazole dendrimer generation, where n = 1 and 2; AdL = adamantyl- ...
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    • Dendrokronologisia ajoitustuloksia uuden ajan alun kohteista : Turun Qwenselin talo, Lokalahden kellotapuli ja Keminmaan vanhan kirkon puuholvi 

      Savolainen, Panu; Aakala, Tuomas; Huttunen, Marko; Laine, Laura; Wallenius, Tuomo; Viinikkala, Lauri (Suomen keskiajan arkeologian seura, 2022)
      This article examines new dendrochronological dating results from three early modern buildings in Finland, Qwensel house in Turku, Lokalahti belfry and Keminmaa Old Church wooden vault. The article engages dendrochronological ...

    • Dependence of crack shape in loaded articular cartilage on the collagenous structure 

      Al-Saffar, Yasir; Moo, Eng Kuan; Pingguan-Murphy, Belinda; Matyas, John; Korhonen, Rami K; Herzog, Walter (Informa UK Limited, 2023)
      Cartilage cracks disrupt tissue mechanics, alter cell mechanobiology, and often trigger tissue degeneration. Yet, some tissue cracks heal spontaneously. A primary factor determining the fate of tissue cracks is the ...

    • Deposition of respiratory virus pathogens on frequently touched surfaces at airports 

      Ikonen, N; Savolainen-Kopra, C; Enstone, JE; Kulmala, I; Pasanen, P; Salmela, A; Salo, S; Nguyen-Van-Tam, JS; Ruutu, P (Springer Nature America, Inc, 2018)
      Background International and national travelling has made the rapid spread of infectious diseases possible. Little information is available on the role of major traffic hubs, such as airports, in the transmission of ...
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    • Derivatives of Inner Functions in Bergman Spaces Induced by Doubling Weights 

      Pérez-González Fernando; Rättyä Jouni; Reijonen Atte (Finnish Academy of Science and Letters, 2017)
      info:eu-repo/semantics/article

    • Description of growth and oscillation of solutions of complex LDE’s 

      Chyzhykov, Igor; Gröhn, Janne; Heittokangas, Janne; Rättyä, Jouni (Cambridge University Press on behalf of Australian Mathematical Publishing Association Inc, 2022)
      It is known that, in the unit disc as well as in the whole complex plane, the growth of the analytic coefficients A0,…,Ak−2 of f(k)+Ak−2f(k−2)+⋯+A1f′+A0f=0,k⩾2, determines, under certain growth restrictions, not only the ...

    • Descriptive Analytics Dashboard for an Inclusive Learning Environment 

      Costas-Jauregui, Vladimir; Oyelere, Solomon Sunday; Caussin-Torrez, Bernardo; Barros-Gavilanes, Gabriel; Agbo, Friday Joseph; Toivonen, Tapani; Motz, Regina; Tenesaca, Juan Bernardo (IEEE, 2021)
      The educational community continuously seeks ways to improve the learner-centered learning process through new approaches like Learning analytics and its dashboard, which is helpful to enhance the teaching and the learning ...
      Artikkelit ja abstraktit tieteellisissä konferenssijulkaisuissa

    • Desert plant bacteria reveal host influence and beneficial plant growth properties 

      Eida, Abdul Aziz; Ziegler, Maren; Lafi, Feras F; Michell, Craig T; Voolstra, Christian R; Hirt, Heribert; Saad, Maged M (Public Library of Science (PLoS), 2018)
      Deserts, such as those found in Saudi Arabia, are one of the most hostile places for plant growth. However, desert plants are able to impact their surrounding microbial community and select beneficial microbes that promote ...
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    • Design of 2D-nanocrystals in water: Preparation, structure and functionalization 

      Aslanov, L; Zakharov, V; Paseshnichenko, K; Yatsenko, A; Orekhov, A; Tafeenko, V; Chernyshev, V (Walter de Gruyter GmbH, 2018)
      A new method for synthesis of 2D nanocrystals in water was proposed. The use of perfluorothiophenolate ions as surfactant allowed us to produce 2D single-crystal nanosheets of CaS at pH=9 and flat nanocrystals of PbS at ...
      Artikkelit ja abstraktit tieteellisissä konferenssijulkaisuissa

    • Design, development, and evaluation of a mobile learning application for computing education 

      Oyelere SS; Suhonen J; Wajiga GM; Sutinen E (Springer Nature, 2018)
      The study focused on the application of the design science research approach in the course of developing a mobile learning application, MobileEdu, for computing education in the Nigerian higher education context. MobileEdu ...
      info:eu-repo/semantics/article