Browsing Luonnontieteiden, metsätieteiden ja tekniikan tiedekunta by Title

Now showing items 674-693 of 1562

    • Hydrology of Drained Peatland Forest: Numerical Experiment on the Role of Tree Stand Heterogeneity and Management 

      Stenberg, Leena; Haahti, Kersti; Hokka, Hannu; Launiainen, Samuli; Nieminen, Mika; Lauren, Ari; Koivusalo, Harri (MDPI AG, 2018)
      A prerequisite for sustainable peatland forestry is sufficiently low water table (WT) level for profitable tree production. This requires better understanding on controls and feedbacks between tree stand and its ...
      Tieteelliset aikakauslehtiartikkelit

    • Hydroxymethylation of softwood kraft lignin and phenol with paraformaldehyde 

      Paananen, Hanna; Alvila, Leila; Pakkanen, Tuula (Elsevier BV, 2021)
      Phenol-formaldehyde (PF) resins are the most commonly used adhesives in particleboard and plywood production. Lignin, the second most abundant biopolymer, has the potential to be a valuable resource for phenolic compounds; ...
      Tieteelliset aikakauslehtiartikkelit

    • Hygroscopic properties and cloud condensation nuclei activation of limonene-derived organosulfates and their mixtures with ammonium sulfate 

      Hansen, A M K; Hong, J; Raatikainen, T; Kristensen, K; Ylisirniö, A; Virtanen, A; Petäjä, T; Glasius, M; Prisle, N L (Copernicus GmbH, 2015)
      Organosulfates have been observed as constituents of atmospheric aerosols in a wide range of environments; however their hygroscopic properties remain uncharacterised. Here, limonene-derived organosulfates with a molecular ...
      info:eu-repo/semantics/article

    • Hygroscopicity of dimethylaminium-, sulfate-, and ammonium-containing nanoparticles 

      Tikkanen, Olli-Pekka; Väisänen, Olli; Hao, Liqing; Holopainen, Eemeli; Wang, Hao; Lehtinen, Kari E J; Virtanen, Annele; Yli-Juuti, Taina (Informa UK Limited, 2018)
      Dimethylamine (DMA) and sulfuric acid (SA) are the important constituents of atmospheric aerosols. To accurately predict the behavior of DMA-containing aerosol systems, exact thermodynamic models are needed. The applicability ...
      Tieteelliset aikakauslehtiartikkelit

    • Hygroscopicity of nanoparticles produced from homogeneous nucleation in the CLOUD experiments 

      Kim J; Ahlm L; Yli-Juuti T; Lawler M; Keskinen H; Tröestl J; Schobesberger S; Duplissy J; Amorim A; Bianchi F; Donahue NM; Flagan RC; Hakala J; Heinritzi M; Jokinen T; Kuerten A; Laaksonen A; Lehtipalo K; Miettinen P; Petäjä T; Rissanen MP; Rondo L; Sengupta K; Simon M; Tome A; Williamson C; Wimmer D; Winkler P.M; Ehrhart S; Ye P; Kirkby J; Curtius J; Baltensperger U; Kulmala M; Lehtinen K.E.J; Smith J.N; Riipinen I; Virtanen A (Copernicus Publications on behalf of the European Geosciences Union, 2016)
      Sulfuric acid, amines and oxidized organics have been found to be important compounds in the nucleation and initial growth of atmospheric particles. Because of the challenges involved in determining the chemical composition ...
      info:eu-repo/semantics/article

    • Hyperspectral Image Segmentation of Retinal Vasculature, Optic Disc and Macula 

      Garifullin, A; Koobi, P; Ylitepsa, P; Adjers, K; Hauta-Kasari, M; Uusitalo, H; Lensu, L (IEEE, 2019)
      The most common approach for retinal imaging is the eye fundus photography which usually results in RGB images. Recent studies show that the additional spectral information provides useful features for automatic retinal ...
      Artikkelit ja abstraktit tieteellisissä konferenssijulkaisuissa

    • Hysteresis and Stochastic Fluorescence by Aggregated Ensembles of Graphene Quantum Dots 

      Belko, Nikita; Golubewa, Lena; Chizhevsky, Vyacheslav; Karuseichyk, Sopfy; Filimonenko, Dmitry; Jankunec, Marija; Rehman, Hamza; Kulahava, Tatsiana; Kuzhir, Polina; Mogilevtsev, Dmitri (American Chemical Society, 2022)
      “Blinking” behavior of fluorophores, being harmful for the majority of super-resolved techniques, turns into a key property for stochastic optical fluctuation imaging and its modifications, allowing one to look at the ...

    • I-DIGEST framework: towards authentic learning for indigenous learners 

      Loewen, John; Kinshuk; Suhonen, Jarkko (Springer Nature, 2018)
      There is a distinct lack of authentic and relevant learning opportunities for Indigenous learners in formalized educational settings. This is due to multiple factors including the lack of incorporation of Indigenous knowledge ...
      Tieteelliset aikakauslehtiartikkelit

    • I-SLATE: designing a culturally relevant framework for authentic learning 

      Loewen John; Kinshuk; Suhonen Jarkko; Chen Nian-Shing (Springer Nature, 2017)
      Many Indigenous learners worldwide find the learning materials presented in current educational settings culturally irrelevant. A lack of relevant learning materials within formal education settings subscribing to Western ...
      info:eu-repo/semantics/article

    • The I4U Mega Fusion and Collaboration for NIST Speaker Recognition Evaluation 2016 

      Lee, K A; Hautamäki, V; Kinnunen, T; Larcher, A; Zhang, C; Nautsch, A; Stafylakis, T; Liu, G; Rouvier, M; Rao, W; Alegre, F; Ma, J; Mak, M W; Sarkar, A K; Delgado, H; Saeidi, R; Aronowitz, H; Sizov, A; Sun, H; Nguyen, T H; Sahidullah, Md; Vestman, V; Halonen, M; Kanervisto, A; et al. (ISCA (the International Speech Communication Association), 2017)
      The 2016 speaker recognition evaluation (SRE’16) is the latest edition in the series of benchmarking events conducted by the National Institute of Standards and Technology (NIST). I4U is a joint entry to SRE’16 as the ...
      conferenceObject

    • Ice fishing reveals size structure but not abundance of Eurasian perch in small boreal lakes 

      Turunen, Aatu; Salgado-Ismodes, Andrés; Huuskonen, Hannu; Kahilainen, Kimmo K; Olin, Mikko; Ruuhijärvi, Jukka; Vainikka, Anssi (John Wiley & Sons Ltd, 2023)
      Management of inland recreational fisheries would benefit from stock abundance and size structure data. Feasibly standardised angling methods such as ice fishing could produce representative catch-per-unit-effort (CPUE) ...

    • Icephobic Performance of One-step Silicone-oil-infused Slippery Coatings: Effects of Surface Energy, Oil and Nanoparticle Contents 

      Cui, Wenjuan; Pakkanen, Tapani A (Elsevier BV, 2019)
      Hypothesis State-of-the-art superhydrophobic surfaces (SHSs) usually do not function in high humidity and frosty climate conditions. Lubricant-infused slippery surfaces (LISSs) with a homogeneous and ultraslippery surface ...
      Tieteelliset aikakauslehtiartikkelit

    • ICT for informal workers in Sub-Saharan Africa: Systematic review and analysis 

      Mramba N; Rumanyika J; Apiola M; Suhonen J (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      In Africa, wide diffusion of Information and Communication Technology (ICT), particularly mobile phones and Internet technology, has opened new opportunities for informal workers. New opportunities include better access ...
      info:eu-repo/semantics/conferenceObject

    • Identification and characterization of a novel zebrafish (Danio rerio) pentraxin-carbonic anhydrase 

      Patrikainen MS; Tolvanen MEE; Aspatwar A; Barker HR; Ortutay C; Jänis J; Laitaoja M; Hytönen VP; Azizi L; Manandhar P; Jáger E; Vullo D; Kukkurainen S; Hilvo M; Supuran CT; Parkkila S (PeerJ, 2017)
      Background Carbonic anhydrases (CAs) are ubiquitous, essential enzymes which catalyze the conversion of carbon dioxide and water to bicarbonate and H+ ions. Vertebrate genomes generally contain gene loci for 15–21 different ...
      info:eu-repo/semantics/article

    • Identification of locations susceptible to osteoarthritis in patients with anterior cruciate ligament reconstruction: Combining knee joint computational modelling with follow-up T1p and T2 imaging 

      Bolcos, PO; Mononen, ME; Tanaka, MS; Yang, M; Suomalainen, JS; Nissi, MJ; Töyräs, J; Ma, B; Li, X; Korhonen, RK (Elsevier Ltd, 2019)
      Background Finite element modelling can be used to evaluate altered loading conditions and failure locations in knee joint tissues. One limitation of this modelling approach has been experimental comparison. The aims of ...
      article

    • Identification of new particle formation events with deep learning 

      Joutsensaari, Jorma; Ozon, Matthew; Nieminen, Tuomo; Mikkonen, Santtu; Lähivaara, Timo; Decesari, Stefano; Facchini, M Cristina; Laaksonen, Ari; Lehtinen, Kari EJ (Copernicus GmbH, 2018)
      New particle formation (NPF) in the atmosphere is globally an important source of climate relevant aerosol particles. Occurrence of NPF events is typically analyzed by researchers manually from particle size distribution ...
      Tieteelliset aikakauslehtiartikkelit

    • Identifying dominant environmental predictors of freshwater wetland methane fluxes across diurnal to seasonal time scales 

      Knox, Sara H; Bansal, Sheel; McNicol, Gavin; Schafer, Karina; Sturtevant, Cove; Ueyama, Masahito; Valach, Alex C; Baldocchi, Dennis; Delwiche, Kyle; Desai, Ankur R; Euskirchen, Eugenie; Liu, Jinxun; Lohila, Annalea; Malhotra, Avni; Melling, Lulie; Riley, William; Runkle, Benjamin R K; Turner, Jessica; Vargas, Rodrigo; Zhu, Qing et al. [incl. Tuittila, Eeva-Stiina] (Wiley, 2021)
      While wetlands are the largest natural source of methane (CH4) to the atmosphere, they represent a large source of uncertainty in the global CH4 budget due to the complex biogeochemical controls on CH4 dynamics. Here we ...
      Tieteelliset aikakauslehtiartikkelit

    • Identifying potential design features of a smart learning environment for programming education in Nigeria 

      Agbo, Friday Joseph; Oyelere, Solomon Sunday; Suhonen, Jarkko; Tukiainen, Markku (Inderscience Publishers, 2019)
      Smart learning environment (SLE) has been researched to enhance teaching and learning by providing personalised learning, quick feedback, motivation and learning support. This study discusses the features of SLE that are ...
      Tieteelliset aikakauslehtiartikkelit

    • Image reconstruction in quantitative photoacoustic tomography using adaptive optical Monte Carlo 

      Hänninen, Niko; Pulkkinen, Aki; Arridge, Simon R.; Tarvainen, Tanja (Society of Photo-Optical Instrumentation Engineers (SPIE), 2023)

    • Image Reconstruction with Reliability Assessment in Quantitative Photoacoustic Tomography 

      Hänninen, Niko; Pulkkinen, Aki; Tarvainen, Tanja (MDPI AG, 2018)
      Quantitative photoacoustic tomography is a novel imaging method which aims to reconstruct optical parameters of an imaged target based on initial pressure distribution, which can be obtained from ultrasound measurements. ...
      Tieteelliset aikakauslehtiartikkelit