Now showing items 862-881 of 1173

    • Radiative and climate impacts of a large volcanic eruption during stratospheric sulfur geoengineering 

      Laakso A; Kokkola H; Partanen A.-I; Niemeier U; Timmreck C; Lehtinen K.E.J; Hakkarainen H; Korhonen H (Copernicus Publications on behalf of the European Geosciences Union, 2016)
      Both explosive volcanic eruptions, which emit sulfur dioxide into the stratosphere, and stratospheric geoengineering via sulfur injections can potentially cool the climate by increasing the amount of scattering particles ...

    • Radon, fungal spores and MVOCs reduction in crawl space house: A case study and crawl space development by hygrothermal modelling 

      Keskikuru, T; Salo, J; Huttunen, P; Kokotti, H; Hyttinen, M; Halonen, R; Vinha, J (Elsevier BV, 2018)
      In this case study was to investigate how ventilation of the crawl space will influence on concentrations of radon, fungal spores and MVOCs in the crawl space and indoors of detached house. The crawl space pressurisation ...
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    • Raman Microspectroscopy Demonstrates Alterations in Human Mandibular Bone after Radiotherapy 

      Singh, SP; Parviainen, I; Dekker, H; Schulten, EAJM; ten Bruggenkate, CM; Bravenboer, N; Mikkonen, JJ; Turunen, MJ; Koistinen, AP; Kullaa, A (OMICS Publishing Group, 2015)
      Quality and alterations in the biochemical composition of bones used for dental implantation after radiotherapy in cancer patients is always a critical and debatable factor. Clinically the irradiated bone is similar to ...

    • Raman spectroscopy is sensitive to biochemical changes related to various cartilage injuries 

      Shaikh, Rubina; Nippolainen, Ervin; Virtanen, Vesa; Torniainen, Jari; Rieppo, Lassi; Saarakkala, Simo; Afara, Isaac O; Töyräs, Juha (Wiley, 2021)
      Raman spectroscopy is promising in vivo tool in various biomedical applications; moreover, in recent years, its use for characterizing articular cartilage degeneration has been developing. It has also shown potential for ...
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    • Rapid growth of organic aerosol nanoparticles over a wide tropospheric temperature range 

      Stolzenburg, D; Fischer, L; Vogel, AL; Heinritzi, M; Schervish, M; Simon, M; Wagner, AC; Dada, L; Ahonen, LR; Amorim, A; Baccarini, A; Bauer, PS; Baumgartner, B; Bergen, A; Bianchi, F; Breitenlechner, M; Brilke, S; Buenrostro Mazon, S; Chen, D; Dias, A (Proceedings of the National Academy of Sciences, 2018)
      Nucleation and growth of aerosol particles from atmospheric vapors constitutes a major source of global cloud condensation nuclei (CCN). The fraction of newly formed particles that reaches CCN sizes is highly sensitive to ...
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    • Rapid visualization of grain boundaries in monolayer MoS2 by multiphoton microscopy 

      Karvonen Lasse; Säynätjoki Antti; Huttunen Mikko J; Autere Anton; Amirsolaimani Babak; Li Shisheng; Norwood Robert A; Peyghambarian Nasser; Lipsanen Harri; Eda Goki; Kieu Khanh; Sun Zhipei (Springer Nature, 2017)
      Grain boundaries have a major effect on the physical properties of two-dimensional layered materials. Therefore, it is important to develop simple, fast and sensitive characterization methods to visualize grain boundaries. ...

    • Real-time analysis of methylalumoxane formation 

      Joshi, Anuj; Zijlstra, Harmen S; Liles, Elena; Concepcion, Carina; Linnolahti, Mikko; McIndoe, J Scott (Royal Society of Chemistry (RSC), 2021)
      Methylalumoxane (MAO), a perennially useful activator for olefin polymerization precatalysts, is famously intractable to structural elucidation, consisting as it does of a complex mixture of oligomers generated from ...
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    • Real-Time Closed-Loop Color Control of a Multi-Channel Luminaire Using Sensors Onboard a Mobile Device 

      Tang, Samuel Jia Wei; Kalavally, Vineetha; Ng, Kok Yew; Tan, Chee Pin; Parkkinen, Jussi (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Smart homes and Internet of Things are emerging concepts in modern society, with intelligent lighting being an important part of it. Besides providing visual satisfaction through its color-rendering properties, lighting ...
      Tieteelliset aikakauslehtiartikkelit

    • Real-time destination prediction for mobile users 

      Mariescu-Istodor, Radu; Ungureanu, Roxana; Fränti, Pasi (Copernicus GmbH, 2019)
      The number of GPS trajectories recorded daily has been continuously growing in the recent years and new methods to analyse such big data are surfacing all the time. In this paper, we focus on destination prediction, which ...
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    • Real-time Electric Vehicle Load Forecast to Meet Timely Energy Dispatch 

      Tat, Thomas Ho Chee; Fränti, Pasi (IEEE Computer Society, 2018)
      Electric vehicles are more eco-friendly and energyefficient than the conventional internal combustion engine vehi-cles. This technology adds new challenge to the existing energydistribution network. Specifically, electric ...

    • Reasons for large annual yield fluctuations in wild arctic bramble (Rubus arcticus ssp. arcticus) in Finland 

      Kostamo, Katri Hannele; Toljamo, Anna; Kokko, Harri; Kärenlampi, Sirpa; Rita, Hannu (Canadian Science Publishing, 2018)
      Fluctuations in the yield of wild berries are markedly influenced by weather conditions. However, the cause–effect relationship is often poorly understood. Based on data spanning a 20-year period in Finland, we made an ...
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    • Recognizing the Interest of Forest Owners to Combine Nature-Oriented and Economic Uses of Forests 

      Pynnönen, Sari; Paloniemi, Riikka; Hujala, Teppo (Springer Nature, 2018)
      Protecting biodiversity within separate set-aside conservation areas has not been effective enough to halt its loss. Thus, new approaches to conserve biodiversity alongside production are needed. The non-market values of ...
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    • Recombinase Polymerase Amplification Assay for fast, sensitive and on-site detection of Phytophthora cactorum without DNA extraction 

      Munawar, M; Toljamo, A; Martin, F; Kokko, H (, 2019)
      Crown rot, caused by Phytophthora cactorum, is an increasing problem for the strawberry crop in Europe. Most of the assays available for the detection P. cactorum are either laborious or inadequate for on-site testing. ...
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    • Reconstructing forest canopy from the 3D triangulations of airborne laser scanning point data for the visualization and planning of forested landscapes 

      Vauhkonen J; Ruotsalainen R (Springer Nature, 2017)
      Context Visualizations of future forest landscapes according to alternative management scenarios are useful for eliciting stakeholders’ preferences on the alternatives. However, conventional computer visualizations require ...

    • Recovery of nitrogen and phosphorus from human urine using membrane and precipitation process 

      Pradhan, Surendra K; Mikola, Anna; Heinonen-Tanski, Helvi; Vahala, Riku (Elsevier BV, 2019)
      The nitrogen (N) and phosphorus (P) contents in human urine have been recovered using struvite precipitation and N-stripping techniques. Struvite precipitation technique recovers mainly phosphorus whereas N-stripping ...
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    • Recovery of plant communities after ecological restoration of forestry-drained peatlands 

      Haapalehto Tuomas; Juutinen Riikka; Kareksela Santtu; Kuitunen Markku; Tahvanainen Teemu; Vuori Hilja; Kotiaho Janne S (Wiley-Blackwell, 2017)
      Ecological restoration is expected to reverse the loss of biodiversity and ecosystem services. Due to the low number of well-replicated field studies, the extent to which restoration recovers plant communities, and the ...

    • RedDots Replayed: A New Replay Spoofing Attack Corpus for Text-Dependent Speaker Verification Research 

      Kinnunen, Tomi; Sahidullah, Md; Falcone, Mauro; Costantini, Luca; Gonzalez-Hautamäki, Rosa; Thomsen, Dennis; Sarkar, Archintya; Tan, Zheng-Hua; Delgado, Hector; Todisco, Massimiliano; Evans, Nicholas; Hautamäki, Ville; Lee, Kong Aik (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      This paper describes a new database for the assessment of automatic speaker verification (ASV) vulnerabilities to spoofing attacks. In contrast to other recent data collection efforts, the new database has been designed ...

    • Reduced sliding friction on flat and microstructured metal injection molded (MIM) WC-Co hard metals with MoS2 composite lubricants 

      Dawari, Christopher K; Haq, Inzimam; Mönkkönen, Kari; Suvanto, Mika; Saarinen, Jarkko J (Elsevier BV, 2021)
      Surface texturing with lubricant mixtures was studied by dynamic coefficient of friction (COF) values on micropit and micropillar WC-Co hard metal specimens that were fabricated using a micro-working robot technique combined ...
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    • Refining the role of phenology in regulating gross ecosystem productivity across European peatlands 

      Koebsch, Franziska; Sonnentag, Oliver; Järveoja, Järvi; Peltoniemi, Mikko; Alekseychik, Pavel; Aurela, Mika; Arslan, Ali Nadir; Dinsmore, Kerry; Gianelle, Damiano; Helfter, Carole; Jackowicz-Korczynski, Marcin; Korrensalo, Aino; Leith, Fraser; Linkosalmi, Maiju; Lohila, Annalea; Lund, Magnus; Maddison, Martin; Mammarella, Ivan; Mander, Ülo; Minkkinen, Kari; et al. [incl. Tuittila, Eeva-Stiina] (Wiley, 2020)
      The role of plant phenology as a regulator for gross ecosystem productivity (GEP) in peatlands is empirically not well constrained. This is because proxies to track vegetation development with daily coverage at the ecosystem ...
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    • Regeneration of a sulfur-poisoned methane combustion catalyst: Structural evidence of Pd4S formation 

      Nissinen, Ville H; Kinnunen, Niko M; Suvanto, Mika (Elsevier BV, 2018)
      Palladium-based catalysts are well known for their catalytic activity in hydrocarbon oxidation reactions in exhaust emission control. There is a need to develop catalysts that perform oxidation at low temperatures (< ...
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