• 2020-02-14

    Forest fertilisation with paper mill residues

    Research at Karlstad University shows that sludge and ashes as paper mill residues can be used as effective fertiliser. This involves biochar, that is, carbon from organic material returned to the forest and thus closing the cycle.

    "Biochar has many beneficial effects on the environment," says Maria Sandberg, senior lecturer in environment and energy systems and research leader for the project. "Our lab experiments show that by enriching biochar we can produce a very effective fertiliser for forest plants. If we bring biochar back to the forest, it will remain stable for a long time. In this way, carbon is bound up and there is less carbon dioxide in the atmosphere, which counteracts global warming."

  • 2020-01-31

    Continued research in weightless state

    Solar cell research at Karlstad University has been granted further funding from the Swedish National Space Agency. This means a new opportunity to carry out experiments in an aeroplane in which micro-gravitation is created for the purpose of better understanding how the structure of the active layer of the solar cell is formed.

    ”It’s extremely satisfying to get an extension of this high-risk project from the National Space Agency”, says Jan van Stam, professor of physical chemistry at Karlstad University. ”We have, moreover, once again successfully passed the vetting procedure and received permission from ESA, European Space Agency, to carry out our new experiments during parabolic flights in autumn 2020. This is tantamount to a confirmation that we are on the right track and have put Karlstad University on the map in regard to research with paramount importance internationally.”

  • 2019-12-12

    Polymer solar cells for flexible power supply

    At Karlstad University, there is research on polymer solar cells and how these can be made more stable and effective. Recently, a doctoral thesis was presented on how solar cell materials and functions are affected by contact with air and light.

    ”By now, almost everybody agrees that climate change is real,” says Vanja Blazinic, PhD in physics. ”We need to phase out fossil fuels and transit to renewable energy sources like sun, wind and water. I’ve carried out studies with a focus on sustainable and effective polymer solar cells.”

  • 2019-12-09

    International cooperation upscaled and developed

    Since 2016, a partnership, called MIRAI, has been in operation between Swedish and Japanese universities. Next year marks the start of a new period for the MIRAI partnership with more Swedish and Japanese universities involved in research, education and innovation collaboration. Recently, the next step was discussed at a meeting in Stockholm.

    ”We take a very positive attitude to the opportunities to partake in a continued development of MIRAI as we have good experience of the projects so far,” says Jorge Solis, associate professor of electrical engineering and contact person for MIRAI at Karlstad University. ”Japanese doctoral students have been here and our students have had the chance to go to universities in Japan. The partnership also includes receiving visiting professors.”

  • 2019-11-04

    Great international interest in mathematics conference

    Did you know that it is possible to use mathematical models to calculate how best to repair a broken blood vessel? And that it is possible to find out what tire groove gives the best grip on wintry roads? On 21-25 October, 50 researchers and doctoral students from 14 countries attended a conference at Karlstad University to discuss the latest advances in the technology behind multiscale partial differential equations, a new mathematics trend that more and more people find interesting.

    Multiscale partial differential equations constitute an emergent field where mathematics intersects with engineering, physical science, and computational science. The technology involves using mathematics to understand complex materials. Using various mathematical models, it is possible to connect physical, chemical, and mechanical properties to design an expected response.

  • 2019-10-22

    A new project will improve performance and privacy for 5G users

    The launch of the 5G network is approaching and the expectations are great. Both individuals and businesses are looking forward to higher speed, minimal delays, and the possibility of handling a greater number of connected devices simultaneously. But how do we make optimal use of the potential offered by 5G technology? In the project Performance and Anonymity in future 5G Networks (PAF5G), researchers at Karlstad University will study how performance can be improved through the use of multiple connections, at the same time as users’ privacy is protected.

    The 5G network will offer more flexible solutions, which means that users will be able to adapt the technology to their needs.