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Matti Leppäranta
Analytic methods are useful for lake ice climatology investigations that account for ice phenology, thickness, and extent. Ice climatology depends on the local climate and lake characteristics, which can be compressed into a few forcing factors for analy...
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Toni Rantanen, Arttu Julin, Juho-Pekka Virtanen, Hannu Hyyppä and Matti T. Vaaja
Increasing interest has recently been shown towards the digital twins of cities. These urban digital twins utilize 3D city models together with other data sources, such as open data, which can be accessed, e.g., through application programming interfaces...
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Antti Ahola, Kalle Lipiäinen, Juuso Lindroos, Matti Koskimäki, Kari Laukia and Timo Björk
Weld quality and life extension methods of welded details in ship structures made of high-strength and ultra-high-strength steels are of high importance to overcome the issues related to the fatigue characteristics of welded high-strength steels. The cur...
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Kimmo Keskiniva, Arto Saari and Juha-Matti Junnonen
Construction production is steered with the help of monitoring task progressions and comparing them to the schedule. Construction monitoring is often imprecise. Especially in takt production, more detailed and systematic monitoring methods should be purs...
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Samar Fatima, Verner Püvi and Matti Lehtonen
The burgeoning photovoltaics? (PVs) penetration in the low voltage distribution networks can cause operational bottlenecks if the PV integration exceeds the threshold known as hosting capacity (HC). There has been no common consensus on defining HC, and ...
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Kaisa Jaalama, Heikki Kauhanen, Aino Keitaanniemi, Toni Rantanen, Juho-Pekka Virtanen, Arttu Julin, Matti Vaaja, Matias Ingman, Marika Ahlavuo and Hannu Hyyppä
The importance of ensuring the adequacy of urban ecosystem services and green infrastructure has been widely highlighted in multidisciplinary research. Meanwhile, the consolidation of cities has been a dominant trend in urban development and has led to t...
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Waleed Saeed, Orfan Shouakar-Stash, Warren Wood, Beth Parker and André Unger
Sabkha Matti is the largest inland sabkha (2950 km2) in the Arabian Peninsula. The drainage area supporting this sabkha is >250,000 km2 and is the discharge point for part of the ten thousand meter thick regional groundwater systems ranging in age from P...
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Francis Gyakwaa, Matti Aula, Tuomas Alatarvas, Tero Vuolio, Qifeng Shu, Marko Huttula and Timo Fabritius
The presence of non-metallic inclusions (NMI) such as sulphides and oxides may be detrimental to the control of the steel casting process and product quality. The need for their identification and characterization is, therefore, urgent. This study uses t...
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Mikko Maksimainen, Matti T. Vaaja, Matti Kurkela, Juho-Pekka Virtanen, Arttu Julin, Kaisa Jaalama and Hannu Hyyppä
Roadside vegetation can affect the performance of installed road lighting. We demonstrate a workflow in which a car-mounted measurement system is used to assess the light-obstructing effect of roadside vegetation. The mobile mapping system (MMS) includes...
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Nargessadat Emami, Jukka Heinonen, Björn Marteinsson, Antti Säynäjoki, Juha-Matti Junnonen, Jani Laine and Seppo Junnila
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