• Title/Summary/Keyword: K-ARS

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Usability and Security Analysis of Authentication Methods for Mobile Fin-Tech Services (모바일 핀테크 서비스에서 이용 가능한 인증 수단의 사용성, 안전성 분석 연구)

  • Kim, KyoungHoon;Kwon, Taekyoung
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.27 no.4
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    • pp.843-853
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    • 2017
  • In the case of electronic payment, the obligation to use the certificate-based authentication was abolished. As Fin-tech service providers gain autonomy, various authentication methods are provided. SMS, ARS, PIN, Text-passwords, Fingerprints are popular authentication methods in the mobile Fin-tech services. In this study evaluate the usability and security of authentication methods in a unified mobile environment. We evaluate the usability through SUS and interview. Also we evaluate the security level of authentication methods through NIST guideline. At the result of the usability evaluation, Fingerprint authentication method had been determined as the highest usability, also Fingerprint authentication method had been determined as the safest authentication method by obtaining Security Level 4.

Defoliation Effects on Root and Rhizome Development of Kura Clover

  • Kim, B.W.;Albrecht, K.A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.19 no.5
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    • pp.690-694
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    • 2006
  • There is limited information on the relationship between defoliation and root and rhizome development of kura clover (Trifolium ambiguum M. Bieb.). To determine the effects of defoliation severity on root and rhizome growth of young kura clover plant (seedling about 8 wk old), this research was conducted in 2002 (Experiment 1) and 2003 (Experiment 2) in a glasshouse at the University of Wisconsin-Madison. Four kura clover entries were used in this experiment: two were started from seed materials (ARS-2678 and 'Rhizo') and two were clones from mature, field-grown Rhizo kura clover plant. Three defoliation frequencies (2-, 4- and 6-wk intervals) and two defoliation intensities (complete and partial defoliation) were imposed on each of the four kura clover entries. Root, rhizome, and leaf dry matter (DM) generally increased with less frequent defoliation, however, the increase in rhizome DM was not significant between 4- or 6-wk defoliation periods. The root and leaf DM under complete defoliation (CD) were significantly lower than under partial defoliation (PD). In Exp. 1, rhizome DM was not significantly different between CD and PD; it was significantly lower under CD in Exp. 2. ARS-2678 showed excellent root development characteristics, however, its rhizome DM was significantly lower than Rhizo clones. The rhizome development from Rhizo clones was greater than that from seed materials. If maximum root and rhizome growth are expected from young kura clover plant, the intensity and frequency of defoliation should be minimized or defoliation should be avoided.

Colonizing Ability of Pseudomonas fluorescens 2112, Among Collections of 2,4-Diacetylphloroglucinol-Producing Pseudomonas fluorescens spp. in Pea Rhizosphere

  • Kim, Sang-Dal;Fuente, Leonardo De La;Weller, David M.;Thomashow, Linda S.
    • Journal of Microbiology and Biotechnology
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    • v.22 no.6
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    • pp.763-770
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    • 2012
  • Pseudomonas fluorescens 2112, isolated in Korea as an indigenous antagonistic bacteria, can produce 2,4-diacetylphloroglucinol (2,4-DAPG) and the siderophore pyoveridin2112 for the control of phytophthora blight of red-pepper. P. fluorescens 2112 was classified into a new genotype C among the 17 genotypes of 2,4-DAPG producers, by phlD restriction fragment length polymorphism (RFLP). The colonizing ability of P. fluorescens 2112 in pea rhizosphere was equal to the well-known pea colonizers, P. fluorescens Q8r1 (genotype D) and MVP1-4 (genotype P), after 6 cycling cultivations for 18 weeks. Four tested 2,4-DAPG-producing Pseudomonas spp. could colonize with about a 96% dominance ratio against total bacteria in pea rhizosphere. The strain P. fluorescens 2112 was as good a colonizer as other Pseudomonas spp. genotypes in pea plant growth-promoting rhizobacteria.

Integrated Chassis Control with Electronic Stability Control and Active Rear Steering (자세 제어 장치와 능동 후륜 조향을 이용한 통합 섀시 제어)

  • Yim, Seongjin
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.38 no.11
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    • pp.1291-1297
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    • 2014
  • This paper proposes integrated chassis control (ICC) with electronic stability control (ESC) and active rear steering (ARS). Direct yaw moment control is used to generate a control yaw moment. A weighted pseudo-inverse-based control allocation (WPCA) method is adopted to distribute the control yaw moment into tire forces, generated by ESC and ARS. Simulation-based tuning of variables weights in the WPCA is used to enhance the yaw moment distribution performance. Simulations using the vehicle simulation software $CarSim^{(R)}$ show that the proposed ICC is effective in improving maneuverability and lateral stability.

Cloning and Expression of β1-Adrenergic Receptor Genes in Adipose Tissues from Korean Native Cattle (Hanwoo)

  • Ha, S.H.;Chung, M.I.;Baik, M.G.;Choi, Y.J.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.1
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    • pp.13-16
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    • 2001
  • Bovine ${\beta}1$-adrenergic receptor (AR) cDNA was cloned using degenerative primers. Bovine ${\beta}1$-AR coded for 467 amino acids and the comparison of the deduced amino acid sequence with that of sheep showed 93.4% identity. Northern blot analysis indicated that transcript size for the bovine ${\beta}1$-AR was 3.6 kb in the adipose tissue. The expression level of three $\beta$-ARs (1, 2, and 3) in bovine abdominal, subcutaneous, and perirenal adipose tissues were examined using reverse transcription-polymerase chain reaction (RT-PCR), and the levels of ${\beta}1$- and ${\beta}3$-AR mRNA were found to be lower in the subcutaneous adipose tissue than in the abdominal and perirenal adipose tissues. These results suggest that the expression of $\beta$-ARs mRNA are differentially regulated among the adipose tissues.

The study for the analysis and implementation of Alternate Reality Game by media convergence (미디어 융합에 따른 대체현실게임의 분석 및 구축에 관한 연구)

  • Kim, Jae-Ha
    • Journal of Broadcast Engineering
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    • v.13 no.5
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    • pp.752-759
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    • 2008
  • The latest convergence of broadcasting and communication makes the boundary between medias be ambiguous. It pursues the new type of culture that the unspecified many participants seek the satisfaction for the same target in an realtime environment. ARG(Alternative Reality Game) is a new alternate real game created by media convergence and it processes the more realistic interactivity between users through ARS, SMS, BLOG, Cafe and Messages. This paper analyzes the implementation, design, and construction schemes of ARG in the side of the human thinking and media. We also propose the evolution and role of the broadcasting by combining broadcasting for the activation of ARG.