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Silicon nanowire (SiNW) arrays were prepared on silicon substrates by metal-assisted chemical etching and peeled from the substrates, and their optical properties were measured. The absorption coefficient of the SiNW arrays was higher than that for the bulk silicon over the entire region. The absorption coefficient of a SiNW array composed of 10-μm-long(More)
To achieve a high-efficiency silicon nanowire (SiNW) solar cell, surface passivation technique is very important because a SiNW array has a large surface area. We successfully prepared by atomic layer deposition (ALD) high-quality aluminum oxide (Al2O3) film for passivation on the whole surface of the SiNW arrays. The minority carrier lifetime of the(More)
AIDA is a language for programming (modeling and documenting) in pictures within F-modeling environment where pictures and moving pictures are used as super-characters for representing features of computational algorithms, corresponding application models and possible related documentation. Generic pictures of the algorithmic super-characters are used to(More)
This paper proposes a method of similarity video retrieval based on impressions. As it has been clarified that the impression of videos can be expressed by using five factors, factor scores are tried to be estimated through feature values of videos. As for the dissimilarity, eigen values of the factors are introduced as weights. Similarity retrieval process(More)
Bonner sphere spectrometer (BSS) is used in radiation protection measurement because of its wide energy range (thermal to MeV) and easy operation. Mitsubishi Heavy Industries (MHI) has used BSS to obtain neutron spectrum and has used the neutron spectrum to estimate neutron dose or induced activity. Calibration of BSS is important to estimate precise(More)
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