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Acoustic Detection of Cracks and Delamination in Multilayer Ceramic Capacitors
(IEEE, 2018-10-04)
Multilayer Ceramic Capacitors (MLCC) are the most widely used capacitor type in the electronics industry. However, the brittle ceramic dielectric makes MLCCs prone to mechanical damage. Manufacturing defects or damage ...
Identifying needs and ways to integrate sustainability into energy degree programmes
(Lappeenranta University of Technology, 2018-12-07)
This dissertation focuses on the changes needed in energy education in order to integrate sustainability into the courses of energy degree programmes at technical universities. Education is an important driver of and energy ...
A framework of disruptive sustainable innovation: an example of the Finnish food system
(Taylor & Francis, 2018-11-26)
Disruptive innovations are perceived necessary for accelerating sustainability transitions. However, it is not always clear what exactly is meant by it, what is to be disrupted, and by whom. Socio-technical transition ...
Feasibility of 100% renewable energy-based electricity production for cities with storage and flexibility
(Elsevier, 2018-11-16)
Renewable energy is expected to constitute a significant proportion of electricity production. Further, the global population is increasingly concentrated in cities. We investigate whether it is possible to cost-effectively ...
On the design of fillet welds made of ultra-high-strength steel
(Springer Berlin Heidelberg, 2018-07-12)
Current static design approaches for fillet arc welds made of high- or ultra-high-strength steel (UHSS) do not differ from the design of welds made of conventional steels. However, important issues such as potential softening ...
Power-to-X technology using renewable electricity and carbon dioxide from ambient air: SOLETAIR proof-of-concept and improved process concept
(Elsevier, 2018-10-15)
This work demonstrates hydrocarbon production directly from water, solar energy, and air—called SOLETAIR. The plant includes direct air capture (DAC) of carbon dioxide, hydrogen production by water electrolysis, and two-step ...
The effect of the use of construction and demolition waste on the mechanical and moisture properties of a wood-plastic composite
(Elsevier, 2018-11-22)
Recycling of construction and demolition waste (CDW) which contains materials with high resource value such as plastics, metals, wood, glass and concrete has been investigated in recent years due to tightening environmental ...
Squirrel Cage Rotor Design and Manufacturing for High-Speed Applications
(IEEE, 2018-11-07)
A high-speed squirrel-cage induction machine requires totally different design compared to the traditional squirrel cage industrial motor because of mechanical limitations caused by the high speed. This results in a more ...
A GIS-based Method to Identify Potential Sites for Pumped Hydro Energy Storage - Case of Iran
(Elsevier, 2018-12-12)
Pumped hydro energy storage (PHES) is the most widespread and mature utility-scale storage technology currently available and it is likely to remain a competitive solution for modern energy systems based on high penetration ...
Recognizing required changes to higher education engineering programs’ information literacy education as a consequence of research problems becoming more complex
(Lappeenranta University of Technology, 2018)
Challenges in the Earth’s sustainable development set requirements to modern engineering education. Engineers face complex problems, which need to be solved to keep the planet viable for future generations. This study was ...