• The Academic Congress of Korean Shoulder and Elbow Society
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• 2002.10a
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• pp.367-369
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• 2002

• Clinical Endoscopy
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• v.57 no.2
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• pp.270-273
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• 2024

• Clinical Endoscopy
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• v.55 no.3
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• pp.434-442
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• 2022

Background/Aims: Covered self-expandable metallic stents (CMSs) are widely used for malignant distal biliary obstructions (MDBOs) caused by pancreatic carcinoma. This study compared the efficacy and safety of the laser-cut-type and braided-type CMSs. Methods: To palliate MDBOs caused by pancreatic carcinoma, the laser-cut-type CMSs was used from April 2014 to March 2017, and the braided-type CMSs was used from April 2017 to March 2019. The tested self-expandable metallic stents were equipped with different anti-migration systems. Results: In total, 47 patients received CMSs for MDBOs (24 laser-cut type, 23 braided-type). The time to recurrent biliary obstruction (TRBO) was significantly longer in the braided-type CMSs (p=0.0008), and the median time to stent dysfunction or patient death was 141 and 265 days in the laser-cut-type CMSs and braided-type CMSs, respectively (p=0.0023). Stent migration was the major cause of stent dysfunction in both groups, which occurred in 37.5% of the laser-cut-type CMSs and 13.0% of the braided-type CMSs. There were no differences in the survival duration between the groups. Conclusions: The TRBO was significantly longer for the braided-type CMSs with an anti-migration system than for the laser-cut-type. Stent migration tended to be less frequent with the braided-type CMSs than with the laser-cut-type CMSs.

• ETRI Journal
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• v.10 no.3
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• pp.140-156
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• 1988

This paper presents methodological and theoretical principles for constructing a machine thanslation system between Korean and Japanese. We focus our discussion on the real time computing problem of the machine translation system. This problem is characterized in the time and space complexity during the machine translation. The NARA system has the real time computing algorithm which is based on a mathematical model integrating the linguistic competence and the linguistic performance of both languages, with consequence that the system NARA has also the functional characteristic : the two-way translation mechanism.

• Proceedings of the Botanical Society of Korea Conference
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• 2000.04a
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• pp.27-27
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• 2000

• Proceedings of the Botanical Society of Korea Conference
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• 2000.04a
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• pp.28-28
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• 2000

• Journal of Plant Biotechnology
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• v.4 no.3
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• pp.91-94
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• 2002

An efficient molecular breeding technique for coffee plants was developed. In order to produce transgenic coffee plants, we established a model transformation procedure via Agrobacterium method. We isolated a gene encoding a protein possessing 7-methylxanthine methyltransferase (theobromine synthase) activity, and it was designated as Coffea arabica 7-methylxanthine methyl transferase; CaMXMT. Using this clone, we produced transgenic coffee plants, in which the expression of CaMXMT is suppressed by double-stranded RNA interference (RNAi) andlor anti-sense methods. The expression pattern of CaMXMT was analyzed by reverse transcription-PCR method and we found that, in the transformed cell lines, the level of transcripts were obviously suppressed by RNAi. The endogenous level of caffeine in the transformed cells was dramatically reduced in comparison with non-transformed cells.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.553-556
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• 2009

We investigated an application of supramolecular protein, and demonstrated the metal induced lateral crystallization utilizing ferritins with Ni nanoparticles, named the "bio-nano-crystallization". So far, this method has required long time, because of this method condition based on the conventional solid phase crystallization. In this study, we applied the pulsed rapid thermal annealing to bio-nanocrystallization. As a result, we succeeded in the crystallization for a short time. We found that the TFTs characteristics were improved with decrease metal impieties in poly-Si thin films by this method.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.899-902
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• 2015

제조업체의 품질관리 및 공정에 대한 개선을 위하여 현장에서 생산되는 데이터를 수집 및 분석하여 작업자 또는 경영자에게 의미 있는 의사결정을 할 수 있는 정보 제공이 필요하다. 본 논문에서는 제조 공정 개선을 위한 데이터 수집 및 분석 시스템을 제안한다. 이를 통해서 소규모 제조 현장에서 원자재 배합의 정확도 향상과 작업시간 단축을 가능하게 해 주고, 건당 처리시간의 감소로 인한 생산 납품시간 단축, 불량률 감소 등에 따른 원가 절감을 가져올 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.903-905
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• 2015

제조공정은 작업자의 능력에 의해 셋업 설정이 좌우되기 때문에 불량률의 산출 및생산 예측이 어려우며, 제조공정 상의 다양한 데이터들을 수집할 수 있으나, 각 프로세스 사이에서 서로 연관성 있게 통합되지 못하고 있다. 따라서 논문에서는 제조공정 개선을 위한 실시간 통합 모니터링 시스템을 제안하고자 한다. 이를 통해서 제조업체의 작업자 및 경영자에게 보다 효율적으로 실시간 데이터 분석 정보를 시각화하여 제공함으로써, 제조 공정 개선에 활용할 수 있다.