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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^(++).
Mapping of Quantitative Trait Loci Affecting Growth Traits in a Japanese Native Chicken Cross
Rikimaru, K.,Sasaki, O.,Koizumi, N.,Komatsu, M.,Suzuki, K.,Takahashi, Hideaki Asian Australasian Association of Animal Productio 2011 Animal Bioscience Vol.24 No.10
The Hinai-dori is a breed of chicken native to Akita Prefecture, Japan. An $F_2$ resource population produced by crossing low- and high-growth lines of the Hinai-dori breed was analyzed to detect quantitative trait loci (QTL) for growth traits. Highly significant QTLs for body weight at 10 and 14 weeks of age and average daily gain between 4 and 10 weeks and between 10 and 14 weeks of age were accordingly mapped in a common region between ADL0198 and ABR0287 on chromosome 1 and between MCW0240 and ABR0622 on chromosome 4, respectively. A significant QTL for body weight at 4 weeks of age and a significant QTL for average daily gain between 0 and 4 weeks of age were mapped for the first time to the same region flanking ABR0204 and ABR0284 on chromosome 1. These QTLs are good candidates for application in the development of marker-assisted selection strategies for increasing growth efficiencies in the Hinai-dori breed and native breeds of chickens in Asia.
Janus structured Pt-FeNC nanoparticles as a catalyst for the oxygen reduction reaction
Kuttiyiel, K.,Sasaki, K.,Park, G. G.,Vukmirovic, M.,Wu, L.,Zhu, Y.,Chen, J.,Adzic, R. Royal Society of Chemistry 2017 Chemical communications Vol.53 No.10
<P>We present a new Janus structured catalyst consisting of Pt nano-particles on Fe-N-C nanoparticles encapsulated by graphene layers for the ORR. The ORR activity of the catalyst increases under potential cycling as the unique Janus nanostructure is further bonded due to a synergetic effect. The present study describes an important advanced approach for the future design of efficient, stable, and low-cost Pt-based electrocatalytic systems.</P>