For the diagnosis of early glaucoma by SD-OCT, macular parameters had high discriminating power and high reproducibility comparable with peripapillary RNFL parameters.
In eyes with cataract, segmentation error occurred more frequently in GCC measurements than in pRNFL measurements. After cataract surgery, all thickness parameters in GCC and pRNFL measurements increased slightly. Segmentation errors should be determined, especially in GCC measurements of eyes with cataract and low SSI.
An overview of the Seimei telescope, a 3.8 m optical infrared telescope located on Mt. Chikurinji in the Okayama prefecture of Japan, is presented. Seimei is a segmented-mirror telescope whose primary mirror consists of 18 petal-shaped segments. The telescope tube supporting the thin segmented mirrors is structurally incorporated within large arc-rails providing the elevation axis. The tube has a light-weight homologous structure designed with a genetic algorithm. The total weight of the telescope tube, including 1.4-ton optics, is only 8 tons. By virtue of its light weight, the telescope is able to point at an object anywhere in the observable sky within one minute. The telescope is operated by Kyoto University in collaboration with the National Astronomical Observatory of Japan (NAOJ). Half of the telescope time is used by Kyoto University. The remaining time is open to the Japanese astronomical community. NAOJ is responsible for the management of the open-use time, including handling of the observation proposals. The telescope is now regularly performing scientific observations on the basis of a variety of proposals.
Single-crystal thin films of pyrite were successfully grown by means of atmospheric pressure chemical vapor deposition (AP-CVD) using FeCl3 and CH3CSNH2 as starting materials. The pyrite films deposited onto Si(100) substrates at 673 K have smooth shinny metallic surfaces free from cracks. It was observed that the carrier concentration and Hall mobility of the films at 298 K was 5.5 × 1017cm-3 and 280 cm2/V·s, respectively. Also, the band gap and the optical absorption coefficient were 1.0 eV and 5 × 104 cm-1, respectively.
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