Pientalon vesikattoremontin yhteydessä toteutetut parannukset

Tässä opinnäytetyössä perehdytään vanhan 1960-luvulla rakennetun ja 1970-luvulla laajennetun pientalon vesikattoremontin yhteydessä toteutettuihin rakenteellisiin parannuksiin, joilla pyrittiin parantamaan rakennuksen teknistä toimintaa, viihtyisyyttä ja turvallisuutta. Kohderakennus oli toiminut koko elinkaarensa ajan vapaa-ajan käytössä, pääasiassa kesäaikaan. Hankkeen toteutus eteni vaihe vaiheelta alkukartoituksesta työn loppuunsaattamiseen ja valmiin työn luovuttamiseen tilaajalle. Saneeraukseen liittyvät piirustukset, asiakirjat ja suunnitelmat tehtiin yhteistyössä yksityisen tilaajan kanssa. Näitä asioita ei oteta tässä työssä esille muutoin kuin tarvittavilta osin kokonaisuuden selventämiseksi. Kattoremontin toteutuksessa pyrittiin nopeaan läpivientiaikaan kohteen sijainnin ja sen mukanaan tuomien haasteiden takia. Kohdetta ei pystytty huputtamaan kokonaan säänsuojaan töiden toteutuksen ajaksi, jolloin jouduttiin turvautumaan väliaikaiseen suojaukseen. Lisäksi käytännön työn rytmittäminen tarvikehankinnoista ja työvaiheista lähtien vaati tarkkaa suunnittelua etukäteen. Remontin laadukkaasta toteutuksesta ei haluttu tinkiä

Kapasitiivinen mittaus robotin z-suuntaiseen positioon

This Master of Science thesis presents mechanical, electrical, measurement and software design and implementation for robot end effector with capacitive tactile force sensor. This end effector is designed to measure both touch and force in z-axis direction and then used in automated testing of smart devices. Various mechanical and electrical designs can be used in the design of a tactile force sensor. The chosen design is always application driven. Selection of measurement technology and decisions made during the design are dependent on the use case and the demands of the application. Different technologies are introduced and one of them is chosen. The selection is justified on the base of preferred attributes. The designed tactile sensor, with changeable spring steel flexure sheets, is a proof of concept that force sensing can be made affordable and capacitive technology can be used in it. The sensor with 0.1 mm thick spring steel flexure pair is capable to measure forces from 0 g to 70 g with resolution of 2.36g, precision of 1 g, hysteresis of 0.5% and linearity error of ± 1%. In touch sensing of the surface in the direction of z-axis, the sensor performs reliably under 3 milliseconds. In force sensing, the previously used methods have always leaned towards commercial solutions which are often expensive and the new design offers an alternative option for this

Parent- and teacher-reported long-term effects of parent training on child conduct problems in families with child protection and other support services : a randomized controlled trial

Background: This randomized controlled trial (RCT) evaluated the long-term effectiveness of the Incredible Years(R) (IY) Parenting Program in modifying children's externalizing problems among families in Child Protection Services (CPS) and using other special support services. We also examined whether parent-reported effects of the IY(R) generalize to the daycare/school setting as reported by teachers. Methods: Participants in the study were 3-7-year-old children with behavioural problems (N = 102 at baseline, N = 89 at one-year follow-up). Participants were randomized to intervention (N = 50) and control groups (N = 52) after the baseline assessment. The intervention group received 19-week IY(R) Parenting Program. The effectiveness of the intervention was analyzed using linear mixed model. Results: Our previously reported pre-post intervention effects on CBCL (Child Behavior Checklist) and ECBI (Eyberg Child Behavior Inventory) were not sustained to the one-year follow-up. Child conduct problems decreased from baseline to follow-up in both intervention and control groups. The positive changes were not observed at daycare/school from baseline to post-intervention or to the one-year follow-up, and there were no significant differences in changes between the groups. Conclusions: Evidence-based parenting program IY(R) seems to be an effective intervention for child conduct problems in the short term in families in the CPS context, but sustaining the positive effects and generalizing them to the daycare/school context are challenging.Peer reviewe

Review of the Current State-of-the-Art of Dovetail Massive Wood Elements

Engineered wood products (EWPs) have been progressively more being utilized in the construction industry as structural materials since the 1990s. In the content of EWPs, adhesives play an important role. However, because of their petroleum-based nature, adhesives contribute to toxic gas emissions such as formaldehyde and Volatile Organic Compounds, which are detrimental to the environment. Moreover, the frequent use of adhesives can cause other critical issues in terms of sustainability, recyclability, reusability, and further machining. In addition to this, metal connectors employed in EWPs harm their end-of-life disposal, reusability, and additional processing. This chapter is concentrating on dovetail massive wood elements (DMWE) as adhesive- and metal connector-free sustainable alternatives to commonly used EWPs e.g., CLT, LVL, MHM, Glulam. The dovetail technique has been a method of joinery mostly used in wood carpentry, including furniture, cabinets, log buildings, and traditional timber-framed buildings throughout its rich history. It is believed that this chapter will contribute to the uptake of DMWE for more diverse and innovative structural applications, thus the reduction in carbon footprint by increasing the awareness and uses of DMWE in construction

Parent- and teacher-reported long-term effects of parent training on child conduct problems in families with child protection and other support services: a randomized controlled trial

Background: This randomized controlled trial (RCT) evaluated the long-term effectiveness of the Incredible Years(R) (IY) Parenting Program in modifying children's externalizing problems among families in Child Protection Services (CPS) and using other special support services. We also examined whether parent-reported effects of the IY(R) generalize to the daycare/school setting as reported by teachers.Methods: Participants in the study were 3-7-year-old children with behavioural problems (N = 102 at baseline, N = 89 at one-year follow-up). Participants were randomized to intervention (N = 50) and control groups (N = 52) after the baseline assessment. The intervention group received 19-week IY(R) Parenting Program. The effectiveness of the intervention was analyzed using linear mixed model.Results: Our previously reported pre-post intervention effects on CBCL (Child Behavior Checklist) and ECBI (Eyberg Child Behavior Inventory) were not sustained to the one-year follow-up. Child conduct problems decreased from baseline to follow-up in both intervention and control groups. The positive changes were not observed at daycare/school from baseline to post-intervention or to the one-year follow-up, and there were no significant differences in changes between the groups.Conclusions: Evidence-based parenting program IY(R) seems to be an effective intervention for child conduct problems in the short term in families in the CPS context, but sustaining the positive effects and generalizing them to the daycare/school context are challenging

High potential for loss of permafrost landforms in a changing climate

The presence of ground ice in Arctic soils exerts a major effect on permafrost hydrology and ecology, and factors prominently into geomorphic landform development. As most ground ice has accumulated in near-surface permafrost, it is sensitive to variations in atmospheric conditions. Typical and regionally widespread permafrost landforms such as pingos, ice-wedge polygons, and rock glaciers are closely tied to ground ice. However, under ongoing climate change, suitable environmental spaces for preserving landforms associated with ice-rich permafrost may be rapidly disappearing. We deploy a statistical ensemble approach to model, for the first time, the current and potential future environmental conditions of three typical permafrost landforms, pingos, ice-wedge polygons and rock glaciers across the Northern Hemisphere. We show that by midcentury, the landforms are projected to lose more than one-fifth of their suitable environments under a moderate climate scenario (RCP4.5) and on average around one-third under a very high baseline emission scenario (RCP8.5), even when projected new suitable areas for occurrence are considered. By 2061-2080, on average more than 50% of the recent suitable conditions can be lost (RCP8.5). In the case of pingos and ice-wedge polygons, geographical changes are mainly attributed to alterations in thawing-season precipitation and air temperatures. Rock glaciers show air temperature-induced regional changes in suitable conditions strongly constrained by topography and soil properties. The predicted losses could have important implications for Arctic hydrology, geo- and biodiversity, and to the global climate system through changes in biogeochemical cycles governed by the geomorphology of permafrost landscapes. Moreover, our projections provide insights into the circumpolar distribution of various ground ice types and help inventory permafrost landforms in unmapped regions.Peer reviewe

Circumpolar permafrost maps and geohazard indices for near-future infrastructure risk assessments

Ongoing climate change is causing fundamental changes in the Arctic, some of which can be hazardous to nature and human activity. In the context of Earth surface systems, warming climate may lead to rising ground temperatures and thaw of permafrost. This Data Descriptor presents circumpolar permafrost maps and geohazard indices depicting zones of varying potential for development of hazards related to near-surface permafrost degradation, such as ground subsidence. Statistical models were used to predict ground temperature and the thickness of the seasonally thawed (active) layer using geospatial data on environmental conditions at 30 arc-second resolution. These predictions, together with data on factors (ground ice content, soil grain size and slope gradient) affecting permafrost stability, were used to formulate geohazard indices. Using climate-forcing scenarios (Representative Concentration Pathways 2.6, 4.5 and 8.5), permafrost extent and hazard potential were projected for the 2041-2060 and 2061-2080 time periods. The resulting data (seven permafrost and 24 geohazard maps) are relevant to near-future infrastructure risk assessments and for targeting localized geohazard analyses.Peer reviewe

Geomorphological processes shape plant community traits in the Arctic

Aim Geomorphological processes profoundly affect plant establishment and distributions, but their influence on functional traits is insufficiently understood. Here, we unveil trait-geomorphology relationships in Arctic plant communities. Location High-Arctic Svalbard, low-Arctic Greenland and sub-Arctic Fennoscandia. Time period 2011-2018. Major taxa studied Vascular plants. Methods We collected field-quantified data on vegetation, geomorphological processes, microclimate and soil properties from 5,280 plots and 200 species across the three Arctic regions. We combined these data with database trait records to relate local plant community trait composition to dominant geomorphological processes of the Arctic, namely cryoturbation, deflation, fluvial processes and solifluction. We investigated the relationship between plant functional traits and geomorphological processes using hierarchical generalized additive modelling. Results Our results demonstrate that community-level traits are related to geomorphological processes, with cryoturbation most strongly influencing both structural and leaf economic traits. These results were consistent across regions, suggesting a coherent biome-level trait response to geomorphological processes. Main conclusions The results indicate that geomorphological processes shape plant community traits in the Arctic. We provide empirical evidence for the existence of generalizable relationships between plant functional traits and geomorphological processes. The results indicate that the relationships are consistent across these three distinct tundra regions and that geomorphological processes should be considered in future investigations of functional traits.Peer reviewe