著者
尾上 順
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.34, no.1, pp.38-43, 2013-01-10 (Released:2013-01-23)
参考文献数
47

A. Einstein first applied Riemannian geometry to develop the general theory of relativity almost one hundred years ago and succeeded in understanding astronomical-scale phenomena such as the straining of time-space by a gravitational field. It is of great interest to reveal whether or not Riemannian geometry affects the electronic properties of condensed matters on a much smaller scale. Although Riemannian geometry has been applied to quantum mechanics since the 1950s, nobody has yet answered this question, because the electronic properties of materials with Riemannian geometry have not been examined experimentally. We report here the prediction and observation of Riemannian geometrical effects on the electronic properties of one-dimensional metallic uneven peanut-shaped C60 polymer.
著者
村田 好正
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.29, no.5, pp.284-290, 2008-05-10 (Released:2008-05-18)
参考文献数
35
被引用文献数
1 1

Reconstruction on open surfaces of Ir, Pt and Au, i.e. (001) and (110) surfaces of fcc metals, is caused by the relativistic effect through increase of the d-hole density of the valence state. The reconstruction of Pt(001) and Pt(110) surfaces is lifted by adsorption of CO and NO molecules and its lifting is caused by reduction of the d-hole density due to donation of lone-pair electrons of these molecules. Although oscillation in the reaction rate of CO oxidation and fantastic two-dimensional images corresponding to various oscillation patterns on Pt(001) and Pt(110) surfaces were observed by Ertl's group, these phenomena can be explained by the change of the d-hole density enhanced by the relativistic effect. Finally, laser-induced desortion of NO from Pt(111) and Pt(111)-Ge surface alloy is also discussed using the relativistic effect.
著者
天野 絵里子
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.37, no.6, pp.268-272, 2016

This article introduces ideas and practices behind Kyoto University's Open Access Policy established in April, 2015. Kyoto University was the first Japanese university that implemented open access (OA) policies to make its scholarly articles freely accessible. This implementation has garnered wide media attention, encouraging other research universities to follow the same action. The article describes basic ideas behind Kyoto University's OA policy as well as recent developments in Japan. It also discusses what obstacles Japanese universities encounter as they endorse OA policy against multiple stakeholders in the academic publishing industry. It finally suggests what can be done to improve the whole OA system, especially in relation to potential conflicts over copyrights between universities and academic associations.
著者
奥村 雅彦 中村 博樹 町田 昌彦
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.34, no.3, pp.135-142, 2013-03-10 (Released:2013-03-22)
参考文献数
25
被引用文献数
1 2

Since large amounts of radioisotopes of Cs was released after the accidents at Fukushima Daiichi nuclear powerplants, a tremendous number of scientists and engineers have faced several issues in terms of decontamination ofradioactive Cs. In this paper, we present our recent two computational works based on density functional theory, one of which is to clarify mechanism of strong adsorption and retention of Cs in clay minerals to establish an effective Cs removal scheme from large amounts of radioactive wastes left by decontamination activities, and the other of which is to reveal why zeolites can selectively catch Cs even in the presence of other minerals and to make a guideline to create a more improved materials to remove Cs as well as other radioactive ions.
著者
寺田 雅子
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.12, no.1, pp.45-49, 1991-02-20 (Released:2009-11-11)
参考文献数
7

抹茶は, なぜ泡立つのだろうか。抹茶の成分と, 抹茶を点 (た) てる所作や道具の点から, 解説してみよう。抹茶には起泡成分として茶葉サポニン, 泡沫修飾成分としてペクチンが存在する。良好な泡沫を形成するためには, これらを適当な割合に溶出させることが大切な条件である。また, 茶筅さばきも重要であり, したがって泡立て中の抹茶懸濁液の動きとを追跡して, 泡沫の形成状態との関連性について述べた。さらに, 泡沫の性状が茶筅の構造に依存していることにもふれてみた。
著者
中島 耕一 今田 康夫 奈良坂 ひろ子 毛利 尚武 斉藤 満
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.5, no.1, pp.28-34, 1984-03-01 (Released:2009-11-11)
参考文献数
5
被引用文献数
2 2

The morphology and friction coefficient associated with water content and lipid on the skin of the inner part of the forearm, were investigated in 250 healthy subjects. It was found by electron microscopy that skin surface exhibited a pattern formed by two types of stripes, main stripes and fine stripes and these differ in length and depth from the superficial surface of the skin. Total length of the stripes on the skin surface per unit area decreases gradually with age of subject, and the pattern of the skin surface in advanced age is mainly formed by the main stripes. Friction coefficient of the surface depends largely on the total length of the stripes per unit area. It increases monotonically with the decrease of the total length.The relationship was investigated between water content and friction coefficient on skin surface, and it was found that there was an optimum water content to minimize friction coefficient of the skin surface.
著者
有賀 哲也
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.27, no.6, pp.341-347, 2006-06-10 (Released:2007-12-12)
参考文献数
40
被引用文献数
3 3

Palladium absorbs hydrogen exothermically. Under the industrial conditions for hydrogenation reactions over palladium catalysts, palladium particles should be working as palladium hydride α'-PdHx (x > 0.6), which suggests the enrollment of absorbed hydrogen in the hydrogenation reaction. In this article, after the energetics, kinetics, and microscopic mechanism of the hydrogen absorption and release processes on palladium surface is reviewed, the recent research on the role of absorbed hydrogen on the alkene hydrogenation reaction on palladium is briefed.
著者
天野 絵里子
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.37, no.6, pp.268-272, 2016-06-10 (Released:2016-06-21)
参考文献数
24
被引用文献数
1

This article introduces ideas and practices behind Kyoto University's Open Access Policy established in April, 2015. Kyoto University was the first Japanese university that implemented open access (OA) policies to make its scholarly articles freely accessible. This implementation has garnered wide media attention, encouraging other research universities to follow the same action. The article describes basic ideas behind Kyoto University's OA policy as well as recent developments in Japan. It also discusses what obstacles Japanese universities encounter as they endorse OA policy against multiple stakeholders in the academic publishing industry. It finally suggests what can be done to improve the whole OA system, especially in relation to potential conflicts over copyrights between universities and academic associations.
著者
奥田 誠
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.36, no.11, pp.572-576, 2015-11-10 (Released:2015-12-01)
参考文献数
3

‘Liquid organic hydrides’ (such as Methylcyclohexane, generally called Organic hydrides in Japan) are in liquid form under atmospheric temperature and pressure which are able to be hydrogenated and dehydrogenated by a thermochemical process, thus allowing the storage holding high hydrogen content, carriage utilizing present oil related infrastructures (container tanks, storage tanks, filling stations) with little or no modification and production of hydrogen ‘on demand’ for fuel cell vehicles or stationary fuel cells at the point of use. The uniqueness of our mobile hydrogenation equipment is to be able to store fluctuating green hydrogen derived from renewable energy in conjunction with water electrolysis, and available to scale up its size as refinery equipment. Dehydrogenation is endothermic reaction, so our dehydrogenation reactor is designed with consideration of efficient heat transfer utilizing threefold alumite cylinders heated by oxidation reaction with a drop of Toluene (residue of dehydrogenation).
著者
Takayuki Miyamae Takashi Tokizaki
出版者
公益社団法人 日本表面科学会
雑誌
e-Journal of Surface Science and Nanotechnology (ISSN:13480391)
巻号頁・発行日
vol.11, pp.76-79, 2013-06-15 (Released:2013-06-15)
参考文献数
15

A near-field optical spectroscopy technique has been developed that collects the nonlinear sum-frequency signal from the surface adsorbed monolayer sample. The sum-frequency signal generated at the surface was collected with a silver-coated multi-mode fiber probe. The metal coating of the fiber effectively eliminates the far-field stray light that enters the core fiber from the outer edge, passing through the clad region. As the tip was pulled away from the sample surface, the sum-frequency signal from the GaAs crystal sample decreased rapidly with increasing tip-sample distance, indicating that the signal is essentially due to the near-field generated by the sum-frequency process. By using the metal-coated multi-mode fiber probe, information about the vibrational structure of the adsorbed molecules at the surfaces is studied. [DOI: 10.1380/ejssnt.2013.76]
著者
最田 優
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.14, no.4, pp.238-242, 1993-06-01 (Released:2009-08-07)
参考文献数
7

ウイスキーのおいしさは,その由来から<穀物のうまさ><醸しのうまさ><蒸留のうまさ><熟成のうまさ>の四つに分けられる。中でも熟成のうまさを兼ね備えていることがウイスキーを世界中で飲まれる酒に育て上げた大きい要因と考えられる。ウイスキーの熟成はオーク樽に長い年月貯蔵して初めて得られるものであり,ウイスキーを飲むことは時間を飲むことだといえる。 樽貯蔵中には樽材を通した蒸散,樽材成分の分解溶出,種々の成分間の反応などの物質の変化と共に,物性の変化がゆっくりと起こる。樽貯蔵はアルコール度数60%前後で行われているが,貯蔵中にエタノールと水の分子会合が進み,大きいクラスターが貯蔵年数と共に増加する。また、熟成したウイスキーなどでは誘電率の低下や,気相でのエタノール蒸気分圧の低下などが知られている。このような溶液の状態の変化が,物質の変化と共にウイスキーの味わいのまろやかさをつくりあげている。 最近のクラスターの解析から幅広い濃度でのエタノール水溶液の特徴がわかってきている。ウイスキーを水割りで飲む場合の濃度は溶液の状態が大きく変化する範囲にあり,水割りとして好まれる濃度との関係でおおいに興味をひかれる。
著者
山下 理恵
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.34, no.1, pp.46-49, 2013-01-10 (Released:2013-01-23)
参考文献数
3
著者
岩清水 晃
出版者
公益社団法人 日本表面科学会
雑誌
表面科学
巻号頁・発行日
vol.38, no.9, pp.479-480, 2017

南部鉄器の「南部」の名称は約四〇〇年前,南部信直公が盛岡に城を構え,藩主としてこの地を持っていたことにはじまる。南部藩主が京都から盛岡に釜師を招き茶の湯釜を作らせたといわれる。盛岡には古くから砂鉄,岩鉄などの良質な鉄資源や,川砂,粘土,漆,木炭などの原料がすべて地元で産出され,鋳物産業にはもってこいの立地条件にありそのころから鉄器が製造されてきた。守るべき伝統は守りつつ新しいことへも挑戦していく南部鉄器を紹介いたします。
著者
江澤 雅彦
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.35, no.8, pp.449-456, 2014-08-10 (Released:2014-08-23)
参考文献数
40
被引用文献数
1

We review the recent progress of the study of silicene, which is a honeycomb structure of silicon atoms. Silicene shares many similar properties with graphene but has some extra exciting properties since it is a topological insulator due to its spin-orbit interactions. Silicene has so far been synthesized only on a substrate. The synthesis and the measuring physical properties of silicene are interesting playgrounds of the surface science.
著者
Yuki Nagao
出版者
公益社団法人 日本表面科学会
雑誌
e-Journal of Surface Science and Nanotechnology (ISSN:13480391)
巻号頁・発行日
vol.10, pp.229-233, 2012-06-16 (Released:2012-06-16)
参考文献数
28
被引用文献数
1 5

In this study, contact angle measurements and an infrared p-polarized multiple-angle incidence resolution spectrometry (p-MAIRS) technique were performed on MgO(100) and quartz substrates. The contact angle and IR spectra of the in-plane and out-of-plane vibration modes depended on the cleaning methods. The surface of the as-received substrates was contaminated in MgO(100) and quartz substrates. As determined by contact angle and p-MAIR spectra analysis, plasma treatment resulted in a relatively clean and superhydrophilic surface under atmospheric conditions. [DOI: 10.1380/ejssnt.2012.229]
著者
中本 高道
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.26, no.10, pp.629-634, 2005-10-10 (Released:2007-08-09)
参考文献数
21

An odor recorder for recording recipe of smell as well as reproducing it has been developed. It includes an array of sensors with partially overlapping specificities, odor blender and its recipe modification algorithm implemented in a computer. In the odor recorder, the recipe of the blended odor is iteratively modified so that the output pattern of the blended odor can agree with that of the target odor. The real-time reference method was developed to suppress the influence of the environmental change and to record the dynamical change of the odor. The target and blended odors are alternately supplied to the sensors and the recipe of the blended odor is adjusted so that the difference of the sensor responses between the two can be minimized. The dynamical change of the recipe of the four component odors in the apple flavor was successfully recorded without the influence of the environmental disturbance such as temperature and humidity changes.
著者
久保 利隆 野副 尚一
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.23, no.3, pp.149-157, 2002-03-10 (Released:2008-07-01)
参考文献数
25

In order to elucidate the difference of the mechanisms of imaging between scanning tunneling microscopy (STM) and non-contact atomic force microscopy (NC-AFM), the atomic structure and local physical properties of SrTiO3(100) surface were studied by using STM and NC-AFM. We theoretically simulated a model cluster with first-principles total energy calculation. Calculated density of states (DOS), work function, images for STM and NC-AFM were in good agreement with experimental data.
著者
安崎 利明
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.26, no.11, pp.700-703, 2005-11-10 (Released:2007-08-09)
参考文献数
5

For large area coating of architectural glass work with excellent quality and performance of self-cleaning, the sputtering method is suitable for the thickness uniformity and the appearance. Usage of a seed layer is illustrated to form the anatase structure of TiO2. The coating shows the good photo-activity and the excellent self-cleaning performance. This seed layer effectively makes the incomparable lattice matching to the anatase TiO2. Finally, it was found that the double side sputtering with high performance LowE coating is real process when the seed layer is utilized.
著者
樫本 明生
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.25, no.4, pp.238-242, 2004-04-10 (Released:2008-08-12)
参考文献数
16
被引用文献数
2 1

The important functions for make-up foundation are 1) concealing flaws such as pores, spots and wrinkles, 2) providing a beautiful skin color and texture and 3) UV-protection. Furthermore, the foundation requires considerably long-lasting finish, smooth sensation when spreading onto skin, and so on. In recent years, various demands for these performances are greatly growing and many advanced technologies have been developed and applied to make-up cosmetic products. New technologies for make-up foundation, related to surface science and nano materialsare briefly mentioned.
著者
佐藤 直紀
出版者
公益社団法人 日本表面科学会
雑誌
表面科学 (ISSN:03885321)
巻号頁・発行日
vol.27, no.8, pp.480-484, 2006-08-10 (Released:2007-12-05)
参考文献数
5
被引用文献数
4 2

The mechanisms of beautifulness of Japanese black and brown hairs, the structure factors influencing on appearance, and technologies to develop hair shine and vividness of color are reviewed. Various types of pores in each part of the fiber generated by hair damage cause light scattering, which leads to loosing hair shine. Pore fixation technology using aqueous malic acid solution was found effective to reduce light scattering due to swelling ability of the organic acid. Furthermore, the novel chroma enhancement technology with using only shampoo and conditioner is reviewed. Fibers with surface structures having fine concaves and convexes show developing vividness in color. The mechanism of the color enhancement was explained by approximation theory of effective media, by which the refractive index of the treated fiber surfaces was estimated to be less than 1.3.