• Title/Summary/Keyword: SPB

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SPB(Seamlessness-Privacy-Benefit) Paradigm for Construction of Highly-Connected Information Society (고도 정보 연계 사회의 구축을 위한 SPB(Seamlessness-Privacy-Benefit) 패러다임)

  • Lee, Kyoung-Jun;Jun, Jung-Ho
    • Journal of Information Technology Services
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    • v.11 no.2
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    • pp.131-146
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    • 2012
  • The purpose of this research is two-fold : (1) we propose the paradigm to construct a connected information society according to a judgment where a coming information society will evolve into highly-connected information society having "seamlessness" as a keyword, and (2) we draw guidelines to construct infrastructures and establish systems and business models of highly-connected information society based on suggested paradigm. To achieve this, this research conducts the followings. First, we suggest reasons why a coming information society can be appropriate to be considered as highly-connected information society by examining two perspectives on the coming information society. Second, we explain the definition and characteristics of highly-connected information society and propose the SPB paradigm. Third, we analyze the utility of SPB paradigm by evaluating practices. Finally, we suggest four strategies to construct highly-connected information society based on advanced research findings and future research directions.

Development of Biotelemetry Method by Combining the SSBL Method and the Pinger Synchronizing Method (2) - Evaluation for Precision of System - (SSBL 방식과 핑거동기 방식을 조합한 바이오텔레메터리 방식의 개발 (2) -시스템의 정도 평가 -)

  • 박주삼;고탁창언
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.39 no.4
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    • pp.318-325
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    • 2003
  • The new biotelemetry method and system that the installation and the treatment of equipment is convenient and the instantaneously detailed position of the fish attached the pinger is able to track comparatively easily had been developed, an availabilities of it were verified in water tank by using hydrophone and pinger. First of all, the receiving system for biotelemetry was calibrated so as to measure tracking of high precision or wide detection range. In the next place, the precision at narrow and wide beam array of receiving system by using hydrophone was investigated and the actual position was compared with measured hydrophone position. The mean standard deviations of the position by narrow beam array of receiving system were 6.4em in phase beam of fore-aft pair and 6.3em in starboard-port pair, and the wide beam array were 24em and 23em respectively. The precision of distance, position, and velocity at narrow beam array of receiving system by using pinger were investigated and the actual values were compared with measured values. The distance from receiving system to pinger was measured by the pinger synchronizing method, angle of direction of pinger was detected by the super short base line (SSBL) method. The three dimensional position of pinger to the receiving system was measured by combining of two kinds of methods (SPB method), the velocity of pinger was obtained with a differential of the three dimensional positions. The mean standard deviations of the distance by pinger synchronizing method in narrow beam array of receiving system was 1. 8 em, that of the position by SPB method was 7.7cm.

Novel thermoplastic toughening agents in epoxy matrix for vacuum infusion process manufactured composites

  • Bae, Jin-Seok;Bae, Jihye;Woo, Heeju;Lee, Bumjae;Jeong, Euigyung
    • Carbon letters
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    • v.25
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    • pp.43-49
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    • 2018
  • This study suggests the novel thermoplastic toughening agent, which can be applied in the monomer forms without increasing the viscosity of the epoxy resin and polymerized during the resin curing. The diazide (p-BAB) and dialkyne (SPB) compounds are synthesized and mixed with the epoxy resin and the carbon fiber reinforced epoxy composites are prepared using vacuum infusion process (VIP). Then, flexural and drop weight tests are performed to evaluate the improvement in the toughness of the prepared composites to investigate the potential of the novel toughening agent. When 10 phr of p-BAB and SPB is added, the flexural properties are improved, maintaining the modulus as well as the toughness is improved. Even with a small amount of polytriazolesulfone polymerized, due to the filtering effect of the solid SPB by the layered carbon fabrics during the VIP, the toughening and strengthening effect were observed from the novel toughening agent, which could be added in monomer forms, p-BAB and SPB. This suggests that the novel toughening agent has a potential to be used for the composites prepared from viscosity sensitive process, such as resin transfer molding and VIP.

Byr4p, a Possible Regulator of Mitosis and Cytokinesis in Fission Yeast, Localizes to the Spindle Pole Body by its C-Terminal Domains

  • Jwa, Mi-Ri;Shin, Se-Jeong;Albright, Charles F.;Song, Ki-Won
    • BMB Reports
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    • v.32 no.1
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    • pp.92-97
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    • 1999
  • Cytokinesis and septation should be coordinated to nuclear division in the cell division cycle for precise transmission of the genome into daughter cells. byr4, an essential gene in fission yeast Schizosaccharomyces pombe, regulates the timing of cytokinesis and septation in a dosage-dependent manner. We examined the intracellular localization of the Byr4 protein by expressing byr4 as a fusion of green fluorescence protein (GFP). The Byr4 protein localizes as a single dot on the nuclear periphery of interphase cells, duplicates before mitosis, and the duplicated dots segregate with the nuclei in anaphase. The behavior of Byr4p throughout the cell cycle strongly suggests that Byr4p is localized to the spindle pole body (SPB), a microtubule organizing center (MTOC) in yeast. The presence of the Byr4 protein in the SPB is consistent with its function to coordinate mitosis and cytokinesis. We also mapped the domains of Byr4p for its proper localization to SPB by expressing various byr4 deletion mutants as GFP fusions. Analyses of the diverse byr4 deletion mutants suggest that the indirect repeats and the regions homologous to the open reading frame (ORF) YJR053W of S. cerevisiae in its C-terminus are essential for its localization to the SPB.

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IEA ECBCS Annex 54 Economic Assessment Study of a Fuel Cell Integrated Ground Source Heat Pump Microgeneration System (연료전지 지열히트펌프 마이크로제너레이션 IEA ECBCS Annex 54 경제성 평가 연구)

  • Na, Sun-Ik;Kang, Eun-Chul;Lee, Euy-Joon
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.26 no.5
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    • pp.199-205
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    • 2014
  • The integration of FC (Fuel Cell) and GSHP (Ground Source Heat Pump) hybrid system could produce a synergistic advantage in thermal and electric way. This study intends to analyse the economical aspect of a FC integrated GSHP hybrid system compared to the conventional system which is consisted with a boiler and a chiller. Based on the hourly simulation, the study indicated that GSHP system and FC+GSHP hybrid system could reduce the energy consumption on a building. The method of the economic assessment has been based on IEA ECBCS Annex 54 Subtask C SPB(Simple Payback) method. The SPB was calculated using the economic balanced year of the alternative system over the conventional (reference) system. The SPB of the alternative systems (GSHP and FC+GSHP) with 50% initial incentive was 4.06 and 26.73 year respectively while the SPB without initial incentive of systems was 10.71 and 57.76 year.

Role of dexmedetomidine as adjuvant in postoperative sciatic popliteal and adductor canal analgesia in trauma patients: a randomized controlled trial

  • Ahuja, Vanita;Thapa, Deepak;Chander, Anjuman;Gombar, Satinder;Gupta, Ravi;Gupta, Sandeep
    • The Korean Journal of Pain
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    • v.33 no.2
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    • pp.166-175
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    • 2020
  • Background: The effect of dexmedetomidine as an adjuvant in the adductor canal block (ACB) and sciatic popliteal block (SPB) on the postoperative tramadol-sparing effect following spinal anesthesia has not been evaluated. Methods: In this randomized, placebo-controlled study, ninety patients undergoing below knee trauma surgery were randomized to either the control group, using ropivacaine in the ACB + SPB; the block Dex group, using dexmedetomidine + ropivacaine in the ACB + SPB; or the systemic Dex group, using ropivacaine in the ACB + SPB + intravenous dexmedetomidine. The primary outcome was a comparison of postoperative cumulative tramadol patient-controlled analgesia (PCA) consumption at 48 hours. Secondary outcomes included time to first PCA bolus, pain score, neurological assessment, sedation score, and adverse effects at 0, 5, 10, 15, and 60 minutes, as well as 4, 6, 12, 18, 24, 30, 36, 42, and 48 hours after the block. Results: The mean ± standard deviation of cumulative tramadol consumption at 48 hours was 64.83 ± 51.17 mg in the control group and 41.33 ± 38.57 mg in the block Dex group (P = 0.008), using Mann-Whitney U-test. Time to first tramadol PCA bolus was earlier in the control group versus the block Dex group (P = 0.04). Other secondary outcomes were comparable. Conclusions: Postoperative tramadol consumption was reduced at 48 hours in patients receiving perineural or systemic dexmedetomidine with ACB and SPB in below knee trauma surgery.

Detection Method for Unapproved Genetically Modified Rose Plants in Korea Using Duplex Polymerase Chain Reaction (우리나라 미승인 유전자변형 장미의 duplex PCR검출법)

  • Kim, Jae-Hwan;Park, Young-Doo;Kim, Hae-Yeong
    • Horticultural Science & Technology
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    • v.28 no.4
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    • pp.672-677
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    • 2010
  • A duplex PCR method was developed to detect a transformation vector pSPB130 used in the development of a genetically modified (GM) rose plant. To detect a GM rose plant, the anthocyanin synthase ($ANS$) was used as an endogenous reference gene of rose in PCR detection. The primer pair RHANS-KF/KR producing 107 bp amplicon was used to amplify the $ANS$ gene and no amplified product was observed in any of the 9 different plants used as a template. The primer pair GMRH-KF/KR was designed to amplify the junction sequence between 35S promoter and flavonoid 3',5'-hydroxylase ($F3^{\prime}5^{\prime}H$) gene in pSPB130. The detection limit of the duplex PCR method is approximately 0.5%. This result indicates that this duplex PCR method could be useful for monitoring unauthorized GM rose in Korea.

Optimization of Gas-Liquid Chromatographic Parameters for the Multiresidue Analysis of 24 Pesticides (잔류농약 24성분의 다성분 동시분석을 위한 기체크로마토그래피 조건의 최적화)

  • Lee, Eun-Ju;Kim, Woo-Seong;Park, Kun-Sang;Oh, Jae-Ho;Kim, Dai-Byung
    • The Korean Journal of Pesticide Science
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    • v.4 no.2
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    • pp.11-17
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    • 2000
  • Optimum parameters were investigated for the simultanious analysis of 24 pesticide residuces using gas-liquid chromatography with electron capture detection. Electronic pressure control(EPC) on column enhanced resolution of 24 analyzes. Using DB-17, SPB-608, and Ultra-2 capillary column without EPC incomplete separation was observed in some pairs of pesticides. When EPC function was adopted, no severe overlapping was observed on SPB-608 column in every pesticides except vinclozolin/acetochlor pair. Total running time was 45 min, much shorter than $69{\sim}81$ min when used without EPC. Limit of determination of each analyze ranged $0.1{\sim}12.9$ ng/mL.

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Efficient Bit-Parallel Shifted Polynomial Basis Multipliers for All Irreducible Trinomial (삼항 기약다항식을 위한 효율적인 Shifted Polynomial Basis 비트-병렬 곱셈기)

  • Chang, Nam-Su;Kim, Chang-Han;Hong, Seok-Hie;Park, Young-Ho
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.19 no.2
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    • pp.49-61
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    • 2009
  • Finite Field multiplication operation is one of the most important operations in the finite field arithmetic. Recently, Fan and Dai introduced a Shifted Polynomial Basis(SPB) and construct a non-pipeline bit-parallel multiplier for $F_{2^n}$. In this paper, we propose a new bit-parallel shifted polynomial basis type I and type II multipliers for $F_{2^n}$ defined by an irreducible trinomial $x^{n}+x^{k}+1$. The proposed type I multiplier has more efficient the space and time complexity than the previous ones. And, proposed type II multiplier have a smaller space complexity than all previously SPB multiplier(include our type I multiplier). However, the time complexity of proposed type II is increased by 1 XOR time-delay in the worst case.