• Title/Summary/Keyword: $K_s$

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A New Family of Nonlinear Binary Sequences Generated by Two m-Sequences (두 개의 m-수열에 의해 생성된 새로운 비선형 이진수열군)

  • Choi, Un-Sook;Cho, Sung-Jin;Kim, Han-Doo;Kwon, Sook-Hee;Kwon, Min-Jeong;Kim, Jin-Gyoung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2012.05a
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    • pp.228-231
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    • 2012
  • In this paper we propose a new family of nonlinear binary sequences generated by $m$-sequences for decimations $d=2^{k-1}(2^{s+1}-2^k+2^{k(i+1)}-2^{ki}-1)/(2^s-1)$ where $n=2k$, $i$ is odd and $s$ is such that $2s$ divides $k$. And we analyze the cross-correlation function between two $m$-sequences for new decimations $d$. Proposed sequences is extension of Rosendahl's sequnces and Dobbertin's sequences.

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Characterization of 7S and 11S Globulins in Soybean Varieties Differing in Seed Size and Their Effects on the Properties of Soybean Curd

  • Kim, Sun-Lim;Koo, Han-Mo;Chun, Se-Cheol;Kim, Jung-Tae;Kim, Min-Young;Chi, Hee-Youn;Kim, Eun-Hye;Kim, Hyun-Bok;Kim, Mi-Jung;Seo, Bo-Ram;Kang, Eun-Young;Seo, Su-Hyun;Chung, Ill-Min
    • Food Science and Biotechnology
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    • v.17 no.1
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    • pp.135-143
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    • 2008
  • The ratio between 11S Sand 7S globulins was greater in large seed size varieties (LSSVs) of soybean than in small seed size varieties (SSSVs) or medium seed size varieties (MSSVs) but did not differ between MSSVs and SSSVs. The cysteine and methionine contents of 11S globulins were greater than those of total seed proteins and 7S globulins. The acidic monoamino monocarboxylic amino acids were the most abundant class of amino acid in soybean seed (27.2%) and soybean curd protein (29.3%). Isolated 7S and 11S fractions were analyzed by HPLC. Of the 12 peaks detected, 4 constituted 64.1% of the proteins of the SSSVs, 65.6% of the proteins of the MSSVs, and 70.5% of the proteins of the LSSVs. The 11S/7S globulin ratio was related to the yield and hardness of soybean curd. The MSSVs had the greatest yield of soybean curd, but the soybean curd hardness of the MSSVs was greater than that of the SSSVs. These results show that the 11S/7S ratio and color of soybean seeds can be used to predict the yield, hardness, and color of soybean curd.

Cloning and Functional Analysis of Gene Coding for S-Adenosyl-L-Methionine Synthetase from Streptomyces natalensis (Streptomyces natalensis로부터 S-adenosyl-L-methionine synthetase 유전자의 클로닝 및 기능분석)

  • Yoo, Dong-Min;Hwang, Yong-Il;Choi, Sun-Uk
    • Journal of Life Science
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    • v.21 no.1
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    • pp.96-101
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    • 2011
  • S-Adenosyl-L-methionine synthtase (SAM-s) catalyzes the biosynthesis of SAM from ATP and L-methionine. SAM plays important roles in the primary and secondary metabolism of cells. A metK encoding a SAM-s was searched from Streptomyces natalensis producing natamycin, a predominantly a strong antifungal agent, inhibiting the growth of both yeasts and molds and preventing the formation of aflatoxin in filamentous fungi. To obtain the metK of S. natalensis, PCR using primers designed from the two highly conserved regions for metK genes of Streptomyces strains was carried out, and an intact 1.2-kb metK gene of S. natalensis was cloned by genomic Southern hybridization with PCR product as a probe. To identify the function of the cloned metK gene, it was inserted into pSET152ET for its high expression in the Streptomyces strain, and then introduced into S. lividans TK24 as a host by transconjugation using E. coli ET12567(pUZ8002). The high expression of metK in S. lividans TK24 induced actinorhodin production on R5 solid medium, and its amount in R4 liquid medium was 10-fold higher than that by exconjugant including only pSET152ET.

Study on Growth and Opto-Electrical Characterization of $CdS_{1-x}Se_{x}$ Thin Film using Chemical Bath Deposition Method (CBD 방법에 의한 $CdS_{1-x}Se_{x}$ 박막의 열처리에 따른 광전기적 특성)

  • Hong, K.J.;Choi, S.P.;Lee, S.Y.;You, S.H.;Shin, Y.J.;Lee, K.K.;Suh, S.S.;Kim, H.S.;Yun, E.H.;Kim, S.U.;Shin, Y.J.;Jeong, T.S.;Shin, H.K.;KIm, T.S.;Moon, J.D.;Jeon, S.L.
    • Journal of Sensor Science and Technology
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    • v.4 no.1
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    • pp.51-63
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    • 1995
  • Polycrystalline $CdS_{1-x}Se_{x}$ thin films were grown on ceramic substrate using a chemical bath deposition method. They were annealed at various temperature and X-ray diffraction patterns were measured by X-ray diffractometer in order to study $CdS_{1-x}Se_{x}$ polycrystal structure using extrapolation method of X-ray diffraction patterns for the CdS, CdSe samples annealed in $N_{2}$ gas at $550^{\circ}C$ it was found hexagonal structure which had the lattice constant $a_{0}=4.1364{\AA}$, $c_{0}=6.7129{\AA}$ in CdS and $a_{0}=4.3021{\AA}$, $c_{0}=7.0142{\AA}$ in CdSe, respectively. Hall effect on these samples was measured by Van der Pauw method and then studied on carrier density and mobility depending on temperature. We measured also spectral response, sensitivity(${\gamma}$), maximum allowable power dissipation and response time on these samples.

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