| 1. |
- Niedomysl, Thomas, et al.
(författare)
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Learning Benefits of Using 2D Versus 3D Maps: Evidence from a Randomized Controlled Experiment
- 2013
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Ingår i: Journal of geography. - New York : Informa UK Limited. - 0022-1341 .- 1752-6868. ; 112:3, s. 87-96
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Tidskriftsartikel (refereegranskat)abstract
- The traditional important role of maps used for educational purposes has gained further potential with recent advances in GIS technology. But beyond specific courses in cartography this potential seems little realized in geography teaching. This article investigates the extent to which any learning benefits may be derived from the use of such technologies. A controlled experiment was conducted to examine whether information recall is improved when cartographic information on population distribution is presented in 2D versus 3D form. The results show statistically significant differences in learning benefits between the two formats, largely in favor of 2D representation. These findings suggest that learning benefits can be derived from paying greater attention to map format in educational settings.
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| 2. |
- Franke, Axel, et al.
(författare)
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The effect of in-cylinder gas flow on the interpretation of the ionization sensor signal
- 2003
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Ingår i: SAE Technical Papers. - Warrendale : S A E Inc..
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Konferensbidrag (refereegranskat)abstract
- The location of the peak pressure can serve as a control parameter to adjust ignition timing and optimize engine performance. The ionization sensor, an electrical probe for combustion diagnostics, can provide information about the peak pressure location. However, the reliability of such information is rather poor. In-cylinder gas flow at the electrodes may be one reason for this. We present results from an investigation of the relationship between ionization sensor current and pressure under various gas flow conditions. The gas flow velocity in the vicinity of the electrode gap was measured by LDA. From the results one may infer how the in-cylinder gas flow affects the reliability of the prediction of pressure peak location from the ionization sensor signal. One finding is that high bulk gas flow impairs the precision of the prediction in certain configurations.
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| 3. |
- Hoang, Hoai, et al.
(författare)
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Deadline first scheduling in switched real-time Ethernet - deadline partitioning issues and software implementation experiments
- 2002
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Ingår i: Euromicro RTS 2002. - Los Alamitos, Calif. : IEEE Computer Society. - 0769516653 - 9780769516653 - 076951667X - 9780769516677 ; , s. 68-71
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Konferensbidrag (refereegranskat)abstract
- This paper presents work on a switched Ethernet network extended to allow for earliest deadline first (EDF) scheduling. We show by example that asymmetric deadline partitioning between the links of a real-time channel can increase the utilization substantially, still not violating the real-time guarantees. We also report measurements on a software implementation of the switch on an ordinary PC.
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