Light Source Selection in Primary-Sample-Space Neural Photon Sampling

2021 ◽  
Author(s):  
Yuta Tsuji ◽  
Tatsuya Yatagawa ◽  
Shigeo Morishima
PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11351
Author(s):  
Shitao Huang ◽  
Ke Li ◽  
Yaoru Pan ◽  
Yan Yu ◽  
Thomas Wernberg ◽  
...  

Seaweed growth is often limited by light. Artificial light supply has been well studied in terrestrial agriculture, however, much less is known about its effect in seaweed aquaculture. In this study, the effects of four artificial light sources (white, red, green, and blue LEDs light) on a brown alga Sargassum fusiforme and a green alga Ulva pertusa were investigated. Seaweed growth, accumulation of photosynthetic pigments (chlorophyll a and carotenoid), and soluble protein were evaluated. White LED light was the optimal supplementary light when cultivating Ulva pertusa and Sargassum fusiforme, because it promoted seaweed growth while maintaining protein production. Meanwhile, red LED was unfavored in the cultivation of S. fusiforme, as it affected the seaweed growth and has a lower residual energy ratio underneath the water. LEDs would be a promising supplementary light source for seaweed cultivation.


2019 ◽  
Vol 38 (2) ◽  
pp. 169-179 ◽  
Author(s):  
Quan Zheng ◽  
Matthias Zwicker
Keyword(s):  

2020 ◽  
Vol 10 (4) ◽  
pp. 333-339
Author(s):  
Jiayu Guo ◽  
Yunjiang Rao ◽  
Weili Zhang ◽  
Zewen Cui ◽  
Anran Liu ◽  
...  

Abstract Contrary to the conventional detection method like radiography, the near infrared light source has been demonstrated to be suitable for dental imaging due to different reflectivity among enamel, dentin, and caries lesion. In this paper, three light sources with different bandwidths based on a transillumination method are compared. The contrast among enamel, dentin, and caries lesion is calculated in different situations. The experimental results show that the random fiber laser has the best comprehensive quality in dental imaging due to its high spectral density, low coherence, and deep penetration. This work provides a guidance for light source selection in dental imaging.


2013 ◽  
Vol 448-453 ◽  
pp. 2093-2096
Author(s):  
Wei Zhi Ding ◽  
Xu Jia

In recent years, with the rapid development of transportation industry, lighting installations were installed in the toll station and some important highway with dense traffic. Illumination plays an important role in the highway. This paper first introduced the illumination, lamps and lanterns, light source selection. Then the lighting power supply system was analyzed.


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