| 1. |
- Ahadi, Aylin, et al.
(författare)
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Simulation of Nanoindentation Response of Empty and Filled Viral Capsids
- 2009
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Ingår i: DCE Technical Memorandum. - 1901-7278. ; 11
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Konferensbidrag (refereegranskat)abstract
- The nanoindentation response of empty and filled viral capsids is modelled using three dimensional finite element analysis. Simulation with two different geometries, spherical and icosahedral, are performed using the finite element code Abaqus. The capsids are modeled as non-linear Hookean elastic and both small and large deformation analysis is performed. Force-indentation curves for three different viral capsids are directly compared to experimental data and the Young’s modulus is determined by calibrating the force-indentation curve to data from atomic force microscopy (AFM) experiments. Predictions are made for two additional viral capsids. The results from the simulation showed a good agreement with AFM data, see [1].
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| 2. |
- Balslev, Soren, et al.
(författare)
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Microfluidic dye laser with compact, low-cost liquid dye dispenser
- 2005
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Ingår i: Micro Total Analysis Systems 2004. - 0854048960 ; , s. 375-377
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Konferensbidrag (refereegranskat)abstract
- We present a compact system consisting of a miniaturized fluid dispenser, delivering liquid laser dye to a micro-chip dye laser. This demonstrates the elimination of bulk fluid pumps for a microfluidic system by using a miniaturized, electrically and chemically inert dispenser, capable of delivering very low flow for extended periods of time.
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| 3. |
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| 4. |
- Hallberg, Håkan, et al.
(författare)
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Modeling of Continuous Dynamic Recrystallization in Aluminum
- 2009
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Ingår i: DCE Technical Memorandum No. 11. - 1901-7278. ; 11, s. 59-62
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Konferensbidrag (refereegranskat)abstract
- A constitutive model is presented, considering grain size refinement through continuous dynamic recrystallization together with an evolving dislocation density. The grain refinement is allowed to influence both the evolution of the dislocation density and the rate dependence of the material. The model is calibrated against experimental data on aluminum and numerical simulations of equal channel angular pressing (ECAP) material processing illustrates the capabilities of the model.
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| 5. |
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| 6. |
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| 7. |
- Kristensen, Fredrik, et al.
(författare)
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A Flexible FFT Processor
- 2002
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Konferensbidrag (refereegranskat)abstract
- In this paper a flexible FFT processor for OFDM systems is presented. In future wireless systems using OFDM each terminal should be able to handle a wide range of different applications, from pure voice communication to high-speed data transfers, with as little overhead in power consumption and protocol procedure as possible. As the terminals will be battery powered and should be cheap to manufacture an ASIC solution is required. To be able to adapt to different communication schemes and various communication channels the FFT processor must be configurable. To minimize power consumption no more precision than necessary should be used. A pipelined radix22 FFT processor, with the possibility of run time switching between 32-1024 points, have been designed in a standard CMOS 0.35 µm technology. Clock gating and low power memories have been used to reduce power consumption.
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| 8. |
- Kristensen, Fredrik, et al.
(författare)
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A Generic Transmitter for Wireless OFDM Systems
- 2003
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Ingår i: 14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003.. - 0780378229 ; 3, s. 2234-2238
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Konferensbidrag (refereegranskat)
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| 9. |
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| 10. |
- Kristensen, Fredrik, et al.
(författare)
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Flexible baseband transmitter for OFDM
- 2003
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Ingår i: Proceedings of the IASTED International Conference on Circuits, Signals, and Systems. - 0889863512 ; , s. 356-361
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Konferensbidrag (refereegranskat)abstract
- To fully utilize the available spectrum for a wireless communication system it is feasible to adapt to different situations on the channel. In this paper a flexible OFDM transmitter is presented together with basic theory behind OFDM transmission. It is shown that high flexibility can be obtained with a reasonable amount of additional hardware. Part of the design, the FFT-processor, has already been fabricated and measurement results are presented.
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