Browsing Luonnontieteiden, metsätieteiden ja tekniikan tiedekunta by Title
Now showing items 587-606 of 1562
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Formation of NH3 and N2O in a modern natural gas three-way catalyst designed for heavy-duty vehicles: the effects of simulated exhaust gas composition and ageing
(Elsevier BV, 2017)An increasing number of heavy-duty vehicles are using liquefied natural gas (LNG) as a fuel due to the expanding refuelling station network for LNG and lower overall emissions compared to diesel vehicles. The latest EURO ...Tieteelliset aikakauslehtiartikkelit
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Formation, Structure and Composition of Methylaluminoxane
(Wiley-Blackwell, 2017)The structurally ill-characterized methylaluminoxane (MAO) is the activator of choice in olefin polymerization catalysis. We have carried out large scale and systematic quantum chemical calculations to simulate the ...info:eu-repo/semantics/article
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Formative evaluation of immersive virtual reality expedition mini-games to facilitate computational thinking
(Elsevier Ltd, 2023)Recently, virtual reality (VR) technology has shown great potential in advancing education with many pedagogical benefits for building the 21st-century teaching and learning experience. This study conducted a formative ...
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Founder representation and effective population size in old versus young breeds-genetic diversity of Finnish and Nordic Spitz
(Wiley-Blackwell, 2017)Finnish Spitz is 130-year-old breed and has been highly popular in Finland throughout its history. Nordic Spitz is very similar to Finnish Spitz by origin and use, but is a relatively recent breed with much smaller population ...info:eu-repo/semantics/article
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Four-step fabrication of SERS-active microfluidic channels
(IOP Publishing, 2018)We present studies of reactive ion etching of glasses modified by electric field applied to the glasses at elevated temperature. Voltage dependence of the thickness of the modified glass layers is revealed. Secondary ion ...Tieteelliset aikakauslehtiartikkelit
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Fragmented graphene synthesized on dielectric substrate for THz applications
(IOP Publishing Ltd, 2022)Fragmented multi-layered graphene films were directly synthesized via chemical vapor deposition (CVD) on dielectric substrates with a pre-deposited copper catalyst. We demonstrate that the thickness of the sacrificial ...
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Framework for syntactic string similarity measures
(Elsevier BV, 2019)Similarity measure is an essential component of information retrieval, document clustering, text summarization, and question answering, among others. In this paper, we introduce a general framework of syntactic similarity ...Tieteelliset aikakauslehtiartikkelit
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Freezing tolerance of seeds can explain differences in the distribution of two widespread mistletoe subspecies in Europe
(Elsevier BV, 2021)The ability of plants to tolerate freezing limits their geographical distribution. Therefore, winter warming may shift a species’ occurrence northwards and/or to higher altitudes. In Europe, the hemiparasitic vascular plant ...Tieteelliset aikakauslehtiartikkelit
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From comprehensive field inventories to remotely sensed wall-to-wall stand attribute data - a brief history of management inventories in the Nordic countries
(Canadian Science Publishing, 2021)Forest management inventories (FMIs) provide critical information, usually at the stand level, for forest management planning. A typical FMI includes (i) the delineation of the inventory area to stands by applying auxiliary ...Tieteelliset aikakauslehtiartikkelit
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From Variables to States to Trajectories (VaSSTra): A Method for Modelling the Longitudinal Dynamics of Learning and Behaviour
(Springer Nature Singapore Pte Ltd, 2023)Research in learning analytics needs longitudinal studies that explore the learner’s behaviour, disposition, and learning practices across time, a gap this article aims to bridge. We present VaSSTra: an innovative method ...
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Fully automated laser ray tracing system to measure changes in the crystalline lens GRIN profile
(The Optical Society, 2017)Measuring the lens gradient refractive index (GRIN) accurately and reliably has proven an extremely challenging technical problem. A fully automated laser ray tracing (LRT) system was built to address this issue. The LRT ...info:eu-repo/semantics/article
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Functional and structural asymmetry in primary motor cortex in Asperger syndrome: a navigated TMS and imaging study
(Springer Nature, 2019)Motor functions are frequently impaired in Asperger syndrome (AS). In this study, we examined the motor cortex structure and function using navigated transcranial magnetic stimulation (nTMS) and voxel-based morphometry ...Tieteelliset aikakauslehtiartikkelit
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Functional Effects of an Interpenetrating Polymer Network on Articular Cartilage Mechanical Properties
(Elsevier BV, 2018)Objective Depletion of glycosaminoglycans (GAGs) and degradation of collagen network are early hallmarks of osteoarthritis (OA). Currently, there are no chondroprotective therapies that mitigate the loss of GAGs or ...Tieteelliset aikakauslehtiartikkelit
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Functionalization of polymers and nanomaterials for water treatment, food packaging, textile and biomedical applications: a review
(Springer Nature, 2021)The inert nature of most commercial polymers and nanomaterials results in limitations of applications in various industrial fields. This can be solved by surface modifications to improve physicochemical and biological ...
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Funding for radiation research: past, present and future
(Informa UK Limited, 2019)For more than a century, ionizing radiation has been indispensable mainly in medicine and industry. Radiation research is a multidisciplinary field that investigates radiation effects. Radiation research was very active ...Tieteelliset aikakauslehtiartikkelit
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Further optimisations of constant Q cepstral processing for integrated utterance and text-dependent speaker verification
(Institute of Electrical and Electronics Engineers (IEEE), 2016)Many authentication applications involving automatic speaker verification (ASV) demand robust performance using short-duration, fixed or prompted text utterances. Text constraints not only reduce the phone-mismatch between ...conferenceObject
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Fusing diameter distributions predicted by an area-based approach and individual-tree detection in coniferous-dominated forests
(Canadian Science Publishing, 2019)An area-based approach (ABA) is the most common method used to predict forest attributes with airborne laser scanning (ALS) data. Individual-tree detection (ITD) offers an alternative to ABA; however, few studies have ...Tieteelliset aikakauslehtiartikkelit
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Gamete-level immunogenetic incompatibility in humans - towards deeper understanding of fertilization and infertility?
(Springer Science and Business Media LLC, 2020)Human leukocyte antigen (HLA) immune genes play an important role in partner selection, but it has remained unclear if nonrandom pairing with respect to parental HLA genes could occur at the level of the gametes. We tested ...Tieteelliset aikakauslehtiartikkelit
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Gamma Power of Electroencephalogram Arousal is Modulated by Respiratory Event Type and Severity in Obstructive Sleep Apnea
(IEEE, 2022)Objective: We aimed to investigate the differences in electroencephalogram (EEG) gamma power (30–40 Hz) of respiratory arousals between varying types and severities of respiratory events, and in different sleep stages. ...
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Gammaproteobacterial methanotrophs dominate methanotrophy in aerobic and anaerobic layers of boreal lake waters
(Inter-Research Science Center, 2018)Small oxygen-stratified humic lakes of the boreal zone are important sources of methane to the atmosphere. Although stable isotope profiling has indicated that a substantial part of methane is already oxidized in the ...Tieteelliset aikakauslehtiartikkelit