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DEVELOPMENT OF PVC WAVEGUIDE SENSOR FOR MEASUREMENT OF Ca^(++) CONCENTRATION
Kim, Kyung H.,Minamitani, H.,Hisamoto, H.,Suzuki, K.,Kang, S.W.,Sasaki, K. 경북대학교 센서기술연구소 1994 센서技術學術大會論文集 Vol.5 No.1
In this paper, a PVC optical thin film waveguide sensor is proposed which can select a specific ion and measure its concentration depending on materials added into waveguide. In order to investigate the applicability of this sensor to Ca^(++) measurement, the waveguide was fabricated with poly vinyl chloride (PVC), bis ethyl hexyl phthalate (BEHP), lipophilic anionic dye (LAD-3), and ionophore (K23E1) which reacts on Ca^(++). For this purpose, we applied the sensor to sample solution whose CaCl_(2) concentration was gradually altered. In this experiment, we found that this thin film waveguide possessed good light propagation. In addition, it showed the chemical reaction to Ca^(++) enough to select Ca^(++) and measure its concentration. These findings suggested that the proposed PVC optical thin film waveguide ion sensor was very effective in selecting Ca^(++) and measuring its concentration. Also, it will be expected that this sensor is applicable to various ions other than Ca^(++).
Seung-Seok Ha,Nam-Hee Kim,Chun-Yeol You,Sukmock Lee,Ohta, K.,Maruyama, T.,Konishi, K.,Nozaki, T.,Suzuki, Y.,Van Roy, W. IEEE 2009 IEEE transactions on magnetics Vol.45 No.6
<P>We investigated the magnetic anisotropy of ultrathin bcc-Fe (001) films with a fcc-Au(001) cover layer, grown onto GaAs (001) (4 times 1) and (2 times 6)/(3 times 6) reconstructed surfaces. The magneto-optical Kerr effect hysteresis loops revealed existence of a strong in-plane uniaxial magnetic anisotropy in the Fe films grown on both the surfaces. Details of the in-plane uniaxial anisotropy (K<SUB>U</SUB>), cubic anisotropy (K<SUB>C</SUB>), and effective demagnetization field (4piM<SUB>eff</SUB>) were studied by Brillouin light scattering method. We observed a stronger reduction of K<SUB>U</SUB>, K<SUB>C</SUB>, and 4piM<SUB>eff</SUB> in thinner Fe layers (below 1.3 nm) grown on both the surfaces. In the case of Fe films grown on GaAs (4 times 1) surface, anisotropies observed were smaller than that for the (2 times 6)/(3 times 6) surface. This reflects the role of surface structure in determining the magnetic anisotropies.</P>
Preparation and Properties of Inverse Perovskite Mn3GaN Thin Films and Heterostructures
H. Tashiro,R. Suzuki,T. Miyawaki,K. Ueda,H. Asano 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.3
Thin films and heterostructures of Mn3GaN with an inverse perovskite structure were grownepitaxially on SrTiO3 (001) and (La0.18Sr0.82)(Al0.59Ta0.41)O3 (001) (LSAT) substrates by ionbeam sputtering, and their structural and electrical properties have been investigated. Mn3GaNepitaxial thin films showed metallic behavior of temperature-dependent resistivity with a smallmaximum at 290-340 K. The maximum resistivity could be attributed to the magnetic transitionfrom antiferromagnetism to paramagnetism. It has been found that epitaxial heterostructuresformed by ferroelectric Ba0.7Sr0.3TiO3 and Mn3GaN layers exhibit a large magnetocapacitanceeffect of more than 2000% in an applied magnetic filed of 1.5 T.
Abe, K.,Hieda, K.,Hiraide, K.,Hirano, S.,Kishimoto, Y.,Kobayashi, K.,Moriyama, S.,Nakagawa, K.,Nakahata, M.,Ogawa, H.,Oka, N.,Sekiya, H.,Shinozaki, A.,Suzuki, Y.,Takeda, A.,Takachio, O.,Ueshima, K.,Um North-Holland Pub. Co 2013 Physics letters: B Vol.719 No.1
A search for light dark matter using low-threshold data from the single phase liquid xenon scintillation detector XMASS, has been conducted. Using the entire 835 kg inner volume as target, the analysis threshold can be lowered to 0.3 keVee (electron-equivalent) to search for light dark matter. With low-threshold data corresponding to a 5591.4 kg@?day exposure of the detector and without discriminating between nuclear-recoil and electronic events, XMASS excludes part of the parameter space favored by other experiments.
An alternative spliced mouse presenilin-2 mRNA encodes a novel γ-secretase inhibitor
Suzuki, Y.,Ohta, K.,Itoh, M.,Sakoh-Sumitomo, Y.,Mitsuda, T.,Ueda, M.,Hayakawa-Yano, Y.,Li, S.,Hida, Y.,Inuzuka, T.,Jung, Y.K.,Nakagawa, T. North-Holland Pub ; Elsevier Science Ltd 2009 FEBS letters Vol.583 No.9
The γ-secretase, composed of presenilin-1 (PS1) or presenilin-2 (PS2), nicastrin (NCT), anterior pharynx-defective phenotype 1 (APH-1), and PEN-2, is critical for the development of Alzheimer's disease (AD). PSs are autoproteolytically cleaved, producing an N-terminal fragment (NTF) and a hydrophilic loop domain-containing C-terminal fragment. However, the role of the loop domain in the γ-secretase complex assembly remains unknown. Here, we report a novel PS2 isoform generated by alternative splicing, named PS2β, which is composed of an NTF with a hydrophilic loop domain. PS2β disturbed the interaction between NCT and APH-1, resulting in the inhibition of amyloid-β production. We concluded that PS2β may inhibit γ-secretase activity by affecting the γ-secretase complex assembly. Structured summary: MINT-7025654: APH1 (uniprotkb:Q96BI3) physically interacts (MI:0218) with PEN2 (uniprotkb:Q9NZ42), PS2 beta (uniprotkb:Q61144-2) and PS1 (uniprotkb:P49769) by anti tag coimmunoprecipitation (MI:0007) MINT-7025631: APH1 (uniprotkb:Q96BI3) physically interacts (MI:0218) with NCT (uniprotkb:Q92542), PEN2 (uniprotkb:Q9NZ42) and PS1 (uniprotkb:P49769) by anti tag coimmunoprecipitation (MI:0007)
An Introduction to the Extraction , Melting and Casting Technologies of Titanium Alloys
Suzuki, K . 대한금속재료학회(대한금속학회) 2001 METALS AND MATERIALS International Vol.7 No.6
The processes of Ti extraction, melting and casting are outlined. In addition, the major process technologies for the precision casting of titanium alloys are studied through a series of basic experiments on such fundamental phenomena as the absorption of oxygen into the sub-surface of the castpart from the molding material, mold filling and defect formation, and the formation of microstructures. Quantitative models for the phenomena being developed based on experimental results may support the production of titanium alloy castparts free from the surface hardened layer and casting defects, and with uniform microstructure throughout the castpart.
K. Sakurama,M. Suzuki,K. Nakano 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
In this paper, we discuss the leader-following formation navigation(LFFN), which is one of the most important issues information control. In this formation, one leader is controlled by a human operator, while multiple followers passa long the leader’s trajectory in the same motion to the leader. The collision avoidance problem in the LFFN has been discussed in aprevious work. However, the problem of initial movements of followers still remains. The followers move along the leader’s path behind the leader at some intervals. Thus, a round the in itial time, the followers can not deter mine routes to track because the reis no leader’s path before the initial time. This paper discusse show the followers should move a round the initial time in order to start up naturally and to achieve the LFFN after wards. The effectiveness of the proposed method is demonstrated by a simulation with three mobile robots.