Secondary measurement standard for calibration of dynamic pressure sensor to bridge the gap between existing static and dynamic standards

A secondary measurement standard filling the gap between the available static and dynamic standards was developed. The standard utilizes a quick-opening valve and bursting diaphragms to generate step-like pressures with amplitude of few kilopascals to 10 MPa and with frequency content from 10-2 Hz to 800 Hz. An important design feature of the developed standard lies in the usage of aluminium diaphragms, allowing short rise times and high frequency content. The standard is based on two reference sensors, calibrated statically and dynamically. The reference sensors showed a linear dynamic response in the intermediate frequency range and was in good agreement with the static calibration results. Therefore, extrapolation of shock tube results was implemented. To demonstrate the capabilities of the developed standard, three pressure measurement systems were characterized, and their respective dynamic response was calculated. The results show that the developed standard can provide calibration information that are not currently available.The financial support by the Swedish Governmental Agency for Innovation Systems, VINNOVA [grant number 2021-04166] is gratefully acknowledged.</p

Utnyttjande av restströmmar vid grönkålsodling – en analys av påverkan på klimatavtrycket

Syftet med studien är att beräkna klimatpåverkan från svensk grönkålsodling. I studien undersöks konventionell grönkålsodling där enbart premiumråvaran, så kallad klass 1 grönkål skördas. Studien inkluderar även analys och jämförelse av konventionell odling med alternativa scenarion där även kvarlämnande restströmmar skördas. Restströmmarna kan sedan utnyttjas för vidareförädling i olika processtekniker för att producera produkter för konsumtion. I studien undersöks därmed också de tre förädlingsteknikerna 1) mikrovågsbehandling med sterilisering eller pastörisering, 2) autoklavering och 3) frysning. Genom dessa förädlingstekniker förlängs även hållbarheten avsevärt, vilket medför ett stort mervärde. I jämförelse med färsk grönkål som antas hållas färsk i ungefär två veckor, kan de förädlade produkterna hålla sig i 60 dagar upp till flera år. Sammanfattningsvis besvarar studien två frågeställningar, hur påverkas klimatavtrycket av grönkålsodling vid fältkant av olika uttag av restströmmar, samt vad blir klimatavtrycket från färdigvara i butik gjord på restströmmar genom användning av olika förädlingstekniker

Att rekrytera till stål- och metallindustrin i Västerbotten och Norrbotten

Denna mindre studie och kartläggning har genomförts inom ramen för projekten Framtidssäkrad industrikompetens Norrbotten med fokus på stålindustrin respektive Framtidssäkrad industrikompetens Västerbotten med fokus på metallindustrin. Dessa projekt är initiativ med syfte att stärka små och medelstora företags förmåga att möta de kompetensutmaningar och möjligheter som följer i spåren av industrins gröna omställning i regionerna.Projekten finansieras genom Tillväxtverket via Fonden för en rättvis omställning, en EU-fond som riktas till regioner med höga utsläpp och omfattande omställningsbehov.</p

Understanding Wildfires in Norway : Key Hazards and Vegetation Fires Damaging Buildings 2016–2023

Wildland–urban interface (WUI) fires are an increasing global challenge, and local knowledge is essential for efficient mitigation. In Norway, as for the rest of Northern Europe, wildfires are expected to increase in frequency and severity, which will also increase WUI vulnerabilities. This study analyzes all registered vegetation fires damaging buildings in Norway from January 2016 to April 2023 (74 fires damaging 102 structures), with a case-by-case review of 18 fires impacting two or more structures. We have identified that spring season fires and direct flame contact are the primary contributors to vegetation fires that damage buildings in Norway. We also provide insights from three wildfire exercises with prescribed burns and a post-fire evaluation, providing fire dynamics data on fires in low vegetation while identifying a need to focus on hazards related to juniper vegetation and unmanaged cultural landscapes. This new knowledge is vital for developing effective and targeted prevention measures for Norwegian communities in WUI areas.This study is a part of the Norwegian pilot case in TREEADS. The TREEADS project has received funding from the European Union's Horizon 2020 Research &amp; Innovation Program under grant agreement No. 101036926.</p

Life cycle assessment of Vidde’s pilot snowmobile - today and in future circular production systems

The aim of this study was to assess and evaluate the climate impact of Vidde’s pilot snowmobile with life cycle assessment, focusing on its design and production system as of today (2025) and in future circular production systems.This life cycle assessment was performed by Emanuel Glans at RISE Research Institutes of Sweden AB in collaboration with Vidde Snow Mobility AB between 2024 and 2025 within the research project “Resursoptimering inom fordonsindustrin: Utformning av cirkulära produktionssystem för arktiska terrängfordon”, funded by Vinnova, Sweden’s Innovation Agency.</p

Exploring industry stakeholder perspectives on a clinical testbed for evaluating the handling of protein drugs in hospitals

Protein drugs, such as therapeutic antibodies, are complex and require careful handling to maintain their efficacy and quality. Stress factors in hospitals, like temperature variations and mechanical shocks during transport, may negatively impact the stability of protein drugs (e.g. various monoclonal antibodies). The pharmaceutical industry possesses extensive knowledge about their product formulations but often the transfer of knowledge from lab studies into in-hospital handling procedures is challenging. To address this gap and find a way to bridge academia, healthcare, and industry, seven semi-structured interviews were conducted with experts from pharmaceutical companies across five countries. This study aimed to explore the opinions of formulation experts regarding stress evaluation in clinical settings. Thematic analysis of the interviews revealed four key themes: The human factor in clinical sites, clinical sites as data providers, potential complexities in conducting tests within a clinical setting, and challenges associated with product-specific methods, equipment and devices. This study also suggests tools for setting up clinical test beds that can help the pharmaceutical industry improve stress evaluation and understand clinical product handling. Direct collaboration with clinical sites is crucial, as experts perceive improved evaluation methods and education to be necessary for ensuring safe medicines for patients.This work has received support from the EU/EFPIA Innovative Medicines Initiative 2 Joint Undertaking (RealHOPE grant n°101007939).</p

EU regulatory sandboxes - An opportunity for coordinating AI Innovation

The aim of the report is to make the synergies between the EU’s different regulatory sandboxes explicit. A specific focus is on the role of and coordination among public authorities in respect to AI-driven innovation, with the aim to prevent silo management by giving concrete examples of how the initiatives interact and complement each other. We provide insights in how regulatory sandboxes, and similar initiatives, can be explored together, even if some will not come into force until 2029. In short, our analysis is that regulatory sandboxes shall support innovation by clarifying how to apply certain rules to innovative systems and technologies. This is done with the involvement of relevant authorities and under contextual constraints. The similarities across EU’s regulatory sandboxes, and the overlap in scope, opens for a governance structure that focuses on regulatory guidance for innovative and complex products, instead of establishing silo management based on individual regulations. The AI Act establishes regulatory sandboxes for AI-driven innovation. From our study we propose to start now, through the regulatory sandboxes established by the Interoperable Europe Act and the Net-Zero Industry Act, and transfer the understanding of how to establish and govern regulatory sandboxes to AI regulatory sandboxes and related initiatives, such as the Cyber Resilience Act and the European Health Data Space. This report is a deliverable from the pre-study Forsa, which is a research project funded by the Swedish innovation agency and conducted by Theo Andersson, Mats Snäll and Jeanna Åkerman at the Swedish Agency for Digital Government and Håkan Burden and Susanne Stenberg at RISE Research Institutes of Sweden

Flexibility-centric sizing and optimal operation of building-thermal energy storage systems : A systematic modelling, optimization and validation approach

The increasing integration of renewable energy sources (RES) and the transition towards a decarbonized energy sector present significant challenges, particularly in demand-side management. Thermal energy storage (TES) systems offer a cost-effective solution for enhancing energy flexibility in building heating systems. However, improper sizing and operation of TES systems can lead to increased investment costs and energy losses. To bridge this gap, this study proposes a novel, optimization-based framework for the systematic sizing and operation of TES systems. The methodology encompasses two key components: (1) an innovative TES sizing framework that integrates system modelling and optimization-based sizing leveraging historical thermal load data; (2) validation and performance evaluation of the sizing outputs through building energy simulations across three diverse building types and climatic conditions. Key findings demonstrate the framework’s ability to adapt to various scenarios, achieving operational cost reductions of up to 35 % and significantly enhancing the energy flexibility in terms of flexibility factor by up to 1.03. Furthermore, the proposed framework is shown to effectively optimize TES capacities to unique building load patterns. These results highlight the framework’s potential as a robust tool for optimizing TES in buildings, contributing to flexible and cost-efficient energy systems. This work was supported by the Swedish Energy Agency under Grant number 51544-1 and the European Union’s H2020 program under Grant number 101096789.</p

Towards better language representation in Natural Language Processing A multilingual dataset for text-level Grammatical Error Correction

This paper introduces MultiGEC, a dataset for multilingual Grammatical Error Correction (GEC) in twelve European languages: Czech, English, Estonian, German, Greek, Icelandic, Italian, Latvian, Russian, Slovene, Swedish and Ukrainian. MultiGEC distinguishes itself from previous GEC datasets in that it covers several underrepresented languages, which we argue should be included in resources used to train models for Natural Language Processing tasks which, as GEC itself, have implications for Learner Corpus Research and Second Language Acquisition. Aside from multilingualism, the novelty of the MultiGEC dataset is that it consists of full texts — typically learner essays — rather than individual sentences, making it possible to train systems that take a broader context into account. The dataset was built for MultiGEC-2025, the first shared task in multilingual text-level GEC, but it remains accessible after its competitive phase, serving as a resource to train new error correction systems and perform cross-lingual GEC studiesSwedish Work on Swedish has been supported by Nationella Språkbanken and Huminfra, both funded by the Swedish Research Council (2018–2024, contract 2017-00626; 2022–2024, contract 2021-00176) and their participating partner institutions, as well as the Swedish Research Council grant 2019-04129.</p

RISE- Metod ASR- Nr 1 – Expansionsprovning för alkalisilikareaktivitet

Metoden avser bestämning av alkalisilikareaktivitet i betong och bygger på att i en betong med ett alkalisilikareaktivt ballastmaterial som vattenlagras i en varm mättad saltlösning (NaCl), kommer cementet att reagera med reaktiva bergartstyper och expandera. Denna expansion tar sig uttryck i en längdförändring hos provkropp som kan mätas. Expansionen mäts med jämna intervall vid lagring i varm mättad NaCl-lösning (50 ± 2 °C). Provkropparna initialmäts efter 28 dygn i klimat, +20 ± 2 °C och minst 95 % relativ fuktighet. Slutmätning sker tidigast efter 20 veckors lagring i varm mättad NaCl-lösning