| Records |
| Author |
Li, C.; Li, G.; Zhu, Y.; Ge, Y.; Kung, H.-te; Wu, Y. |
Title  |
A likelihood-based spatial statistical transformation model (LBSSTM) of regional economic development using DMSP/OLS time series and nighttime light imagery |
Type |
Journal Article |
| Year |
2017 |
Publication |
Spatial Statistics |
Abbreviated Journal |
Spatial Statistics |
| Volume |
21 |
Issue |
B |
Pages |
421-439 |
| Keywords |
Remote Sensing |
| Abstract |
In a regional economy, the central city of a metropolitan area has a radiative effect and an accumulative effect on its surrounding cities. Considering the limitations of traditional data sources (e.g., its subjectivity) and the advantages of nighttime light data, including its objectivity, availability and cyclicity, this paper proposes a likelihood spatial statistical transformation model (LBSSTM) to invert for the gross domestic product (GDP) of the surrounding cities, using time series of Sum of Lights (SOL) data covering the central city and taking advantage of the economic and spatial association between the central city and the surrounding cities within a metropolitan area and the correlation between SOL and GDP. The Wuhan Metropolitan Area is chosen to verify the model using time series analysis and exploratory spatial data analysis (ESDA). The experimental results show the feasibility of the proposed LBSSTM. The prediction accuracy of our model is verified by cross-validation using data from 1998, 2004 and 2011, based on the 3σ rule. This model can quantitatively express the agglomeration and diffusion effect of the central city and reveal the spatial pattern of this effect. The results of this work are potentially useful in making spatio-temporal economic projections and filling in missing data from some regions, as well as gaining a deeper quantitative and spatio-temporal understanding of the laws underlying regional economic development. |
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2211-6753 |
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LoNNe @ kyba @ |
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1644 |
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| Author |
Dent, C.L. |
| Title |
A low-cost method of evaluating savings from lighting retrofits |
Type |
Journal Article |
| Year |
1996 |
Publication |
Fuel and Energy Abstracts |
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| Volume |
37 |
Issue |
4 |
Pages |
273 |
| Keywords |
Energy |
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LoNNe @ kagoburian @ |
Serial |
1025 |
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| Author |
Gliwicz, Z.M. |
| Title |
A Lunar Cycle in Zooplankton |
Type |
Journal Article |
| Year |
1986 |
Publication |
Ecology |
Abbreviated Journal |
Ecology |
| Volume |
67 |
Issue |
4 |
Pages |
883 |
| Keywords |
Animals |
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0012-9658 |
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LoNNe @ christopher.kyba @ |
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420 |
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Bisketzis, N.; Polymeropoulos, G.; Topalis, F. V. |
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A Mesopic Vision Approach for a Better Design of Road Lighting. |
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Journal Article |
| Year |
2004 |
Publication |
WSEAS Transactions on Circuits and Systems |
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3 |
Issue |
5 |
Pages |
1380–1385 |
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Lighting |
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LoNNe @ kagoburian @ |
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626 |
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| Author |
Fiorentin, P.; Boscaro, F. |
| Title |
A method for measuring the light output of video advertising reproduced by LED billboards |
Type |
Journal Article |
| Year |
2019 |
Publication |
Measurement |
Abbreviated Journal |
Measurement |
| Volume |
138 |
Issue |
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Pages |
25-33 |
| Keywords |
Lighting; Energy; Instrumentation; Planning; Light-emitting diode displays; Photometry; Video recording; Image analysis; CCD image sensors; Luminance; Glare |
| Abstract |
Improving knowledge of the light output of digital billboards is important to better assess their effect on driver distraction when they are installed along roads. In this work the emission of an LED based billboard is measured when playing advertising video-clips. In particular the average and the maximum values of the luminance are evaluated. The same video-clips are also analyzed when shown on an LCD monitor, aiming at separating the variability of the videos and of the playing device. The results allow to evaluate an utilization factor of the billboard: the videos have an average luminance around 11% and a peak luminance of 35% of the maximum luminance obtainable from the billboard. The power consumption of the billboard is measured, aside the photometric analysis. The luminance of the device are found linearly dependent on both the power and the effective current absorbed by the device from the grid, with a discrepancy within 6%. It could be a useful information for billboard manufacturers to qualify their product when they do not own photometric instruments. |
| Address |
Department of Industrial Engineering, University of Padova, Padova, Italy; pietro.fiorentin(at)unipd.it |
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Elsevier |
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English |
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English |
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0263-2241 |
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no |
| Call Number |
GFZ @ kyba @ |
Serial |
2214 |
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