443 research outputs found
Frequency domain scanning acoustic microscopy for power electronics:Physics-based feature identification and selectivity
How can a cutting-edge gallium nitride high-electron-mobility transistor encounter catastrophic failure within the acceptable temperature range
The Role of Logistics in Practical Levelized Cost of Energy Reduction Implementation and Government Sponsored Cost Reduction Studies: Day and Night in Offshore Wind Operations and Maintenance Logistics
This paper reveals that logistics make up at least 17% of annual operational expenditure costs for offshore wind farms. Annual operational expenditure is found to vary by a factor of 9.5, making its share of levelized cost of energy for offshore wind range from 13% to 57%. These are key findings of a 20-month research project targeting cost reduction initiatives for offshore wind systems. The findings reveal that cost-out measures are difficult to implement due to cultural differences. Implementation efforts are rendered by personnel located offshore in a harsh sea environment which is in stark contrast to the shore-based office personnel who develop studies directing cost reduction efforts. This paper details the company motivation to join industry-wide cost reduction initiatives. A business case for offshore wind operations and maintenance logistics yielding 1% savings in levelized cost of energy is included on how to expand working hours from daytime to also work at night
Evaluation of In Situ Thermomechanical Stress-Strain in Power Modules using Laser Displacement Sensors
Improved map-matching algorithms for GPS-data - - Methodology and test on data from The AKTA roadpricing experiment in Copenhagen.
Estimation of speed-flow and flow-density relations on the motorway network of the greater Copenhagen area
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