著者

Hodaka YAMAGUCHI Goroh FUJIMAKI Tomohiko MORIMO Masashi NAKAMURA

出版者

Japan Society of Kansei Engineering

雑誌

International Journal of Affective Engineering (ISSN:21875413)

巻号頁・発行日

pp.IJAE-D-22-00007, (Released:2022-10-27)

参考文献数

20

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Wooden panels that are made of glueing elements with various appearances, involve numerous visual combinations. Although craftspeople believe that homogeneous patterns are desirable, it is helpful to clarify the acceptability of heterogeneous patterns from the perspective of sustainability. This study classified individuals based on their evaluation tendencies and examined their preferences. We performed a subjective evaluation of 17 sample images of 109 participants using an online survey. Consequently, it was found that patterns evaluated as “even” are generally more preferred. However, the classified clusters showed differences in their evaluation tendencies. For instance, the general consumer group confirmed only “heterogeneity” and the expert group felt “naturalness” from all samples. Additionally, there was a cluster that might have derived additional value from more homogeneous patterns. We conclude that an even appearance is desired, and additional information illustrating the characters of the wooden panel is needed to release unique patterns.

著者

Masashi Nakamura Kazushi Takemoto Kosei Terada Suwako Fujita Takashi Tanimoto Atsushi Tanaka

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-21-0974, (Released:2022-02-11)

参考文献数

2

被引用文献数

3

著者

Naoya WADA Tomoaki KUMEDA Masashi NAKAMURA Nagahiro HOSHI

出版者

The Electrochemical Society of Japan

雑誌

Electrochemistry (ISSN:13443542)

巻号頁・発行日

pp.20-00043, (Released:2020-06-16)

参考文献数

27

被引用文献数

1

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Previous study shows that tetra-n-hexylammonium cation (THA+), which is composed of one nitrogen atom and four alkyl chains, increases the activity of the oxygen reduction reaction (ORR) on Pt(111) eight times as high as that of bare Pt(111). We have studied the ORR on Pt single crystal electrodes modified with alkane to elucidate which part of THA+ contributes to the enhancement of the activity for the ORR. The ORR activity is increased only twice by the modification of Pt(111) with dodecane and hexadecane. Combination of a nitrogen atom and alkyl chains of THA+ plays an important role in enhancing the ORR on Pt electrodes. Dodecane and hexadecane increases the ORR activity on Pt(111) and Pt(110), but they deactivate the ORR on Pt(100) and the high index planes.

著者

Naoko Takeo Masashi Nakamura Satoshi Nakayama Osamu Okamoto Naoki Sugimoto Shinichi Sugiura Nayu Sato Susumu Harada Masao Yamaguchi Naoya Mitsui Yumiko Kubota Kayoko Suzuki Makoto Terada Akiyo Nagai Junko Sowa-Osako Yutaka Hatano Hiroshi Akiyama Akiko Yagami Sakuhei Fujiwara Kayoko Matsunaga

出版者

Japanese Society of Allergology

雑誌

Allergology International (ISSN:13238930)

巻号頁・発行日

vol.67, no.4, pp.496-505, 2018 (Released:2018-10-18)

参考文献数

48

被引用文献数

32

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Background: Cochineal dye is used worldwide as a red coloring in foods, drinks, cosmetics, quasi-drugs, and drugs. The main component of the red color is carminic acid (CA). Carmine is an aluminum- or calcium-chelated product of CA. CA and carmine usually contain contaminating proteins, including a 38-kDa protein thought to be the primary allergen. Severe allergic reactions manifest as anaphylaxis. The aim of this study was to review all Japanese reported cases and propose useful diagnostic chart.Methods: All reported Japanese cases of cochineal dye-induced immediate allergy were reviewed, and newly registered cases were examined by skin prick test (SPT) with cochineal extract (CE) and measurement of CE and carmine-specific serum IgE test. Two-dimensional (2D) western blotting using patient serum was conducted to identify the antigen.Results: Twenty-two Japanese cases have been reported. SPT and the level of specific IgE test indicated that six cases should be newly registered as cochineal dye allergy. All cases were adult females, and all cases except three involved anaphylaxis; 13 cases involved past history of local symptoms associated with cosmetics use. Japanese strawberry juice and fish-meat sausage, and European processed foods (especially macarons made in France) and drinks were recent major sources of allergen. 2D western blotting showed that patient IgE reacted to the 38-kDa protein and other proteins. Serum from healthy controls also weakly reacted with these proteins.Conclusions: SPT with CE and determination of the level of CE and carmine-specific IgE test are useful methods for the diagnosis of cochineal dye allergy.

著者

平井 友樹 三木 光範 伊藤 稔 中村 誠司 Tomoki Hirai Mitsunori Miki Minoru Ito Masashi Nakamura

出版者

同志社大学ハリス理化学研究所

雑誌

同志社大学ハリス理化学研究報告 = The Harris science review of Doshisha University (ISSN:21895937)

巻号頁・発行日

vol.60, no.1, pp.8-13, 2019-04

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近年,オフィスでの執務におけるストレスや疲労が問題となっており,オフィス環境の改善に注目が集まっている.中でも,照明環境に注目した研究では,照明の明るさ(照度)とストレスに関する研究が行われているが,心電図を用いた研究は少ない.心電図はウェアラブル端末を用いることで容易に取得でき,執務の妨げになることなくストレスの測定が可能である.一方で,人によって好みの照度が異なるということが分かっている.本稿では,照明の照度の違いが,心拍変動に与える影響について検証した.また,アンケートによって快適性が最も高い照度を明らかにし,快適性が最も高い照度とその他の照度でのストレスと作業効率を検証した. 検証の結果,作業時のストレスが小さい照度は人によって異なると明らかになった.また,快適性が高い照度の時には,その他の照度に比べてストレスが小さいと明らかになったが,作業効率に関しては差が見られなかった.したがって,快適と感じる照度にすることで作業によるストレスを小さくし,その他の照度と同等の作業効率で作業できるということがわかった.

著者

Risa Tamagawa-Mineoka Koji Masuda Akiko Yagami Masashi Nakamura Nayu Sato Kayoko Matsunaga Norito Katoh

出版者

Japanese Society of Allergology

雑誌

Allergology International (ISSN:13238930)

巻号頁・発行日

vol.67, no.3, pp.427-429, 2018 (Released:2018-07-28)

参考文献数

13

被引用文献数

7