• Title/Summary/Keyword: Lee Sam

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Efficient Simulated Annealing Algorithm for Optimal Allocation of Additive SAM-X Weapon System (Simulated Annealing 알고리듬을 이용한 SAM-X 추가전력의 최적배치)

  • Lee, Sang-Heon;Baek, Jang-Uk
    • IE interfaces
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    • v.18 no.4
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    • pp.370-381
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    • 2005
  • This study is concerned with seeking the optimal allocation(disposition) for maximizing utility of consolidating old fashioned and new air defense weapon system like SAM-X(Patriot missile) and developing efficient solution algorithm based on simulated annealing(SA) algorithm. The SED(selection by effectiveness degree) procedure is implemented with an enhanced SA algorithm in which neighboring solutions could be generated only within the optimal feasible region by using a specially designed PERTURB function. Computational results conducted on the problem sets with a variety of size and parameters shows the significant efficiency of our SED algorithm over existing methods in terms of both the computation time and the solution quality.

The Assessments of Prognotic Factors on Sensorineural Hearing Loss And The Clinical Study with Acupuncture Treatment (감각신경성 난청의 예후 인자에 대한 평가와 침구 치료에 대한 임상적 고찰)

  • Mun Kyung-Suk;Lee So-Yol;Kwon O-Seop;Jang Jo-Ung;Kwon Hyuk-Seong;Youn Dae-Hwan
    • Korean Journal of Acupuncture
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    • v.23 no.4
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    • pp.101-110
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    • 2006
  • Objectives : The purpose of this study was clinical observation about sensorineural hearing loss compare with acupucture treatment and assessments of prognotic factors. Methods : This study was clinical observation about sensorineural hearing loss cases. for diagnosing in these cases, pure tone audiometry was used. The treatment, acupuncture was used. Results : Three patients(37.5%) remarkably improved, one patient(12.5%), slightly improved, four patients(50%), no change. Conclusions : These results suggest that the prognosis by age and initial hearing threshold was significant. The treatment on sensorineural hearing loss considered that bone condution improved.

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DEVELOPMENT OF A PRACTICAL METHOD FOR THE ESTIMATION OF WELD INDUCED CRACK IN THICK PLATE WELDMENTS

  • Lee, Jae-Myung;Yoon, Dong-Ryul;Heo, Hee-Young;Jang, Tae-Won;Lee, Jae-Won
    • Proceedings of the KWS Conference
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    • 2002.10a
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    • pp.396-401
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    • 2002
  • A practical method for evaluating the possibility of the occurrence of cracking in actual thick-plate T-joint weldments is presented in this study. Systematic experiments based on the method of the design of experiment are conducted in order to investigate the crack tendency in relation to typical welding parameters such as diffusible hydrogen, restraint intensity, preheating temperature and so on. The elastic analysis using the [mite element techniques is employed to quantify the restraint intensities of the specimens. The defined restraint intensities are treated in numerical way for the sake of considering the most uncertain factor among some major factors that govern the cracking phenomena due to welding. The critical plane for judgment of the crack occurrence or crack density is presented as a function of typical welding parameters including determined restraint intensities. The results of numerical estimation by the proposed method for the experimental specimens show the usefulness as a practical tool in welding induced crack problem having extensive uncertainties.

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S-Adenosyl-L-Methionine Analogues to Enhance the Production of Actinorhodin

  • Chong You-Hoon;Young Jung-Mo;Kim Jin-Young;Lee Yu-Kyung;Park Kwang-Su;Cho Jun-Ho;Kwon Hyung-Jin;Suh Joo-WOn;Lim Yoong-Ho
    • Journal of Microbiology and Biotechnology
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    • v.16 no.7
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    • pp.1154-1157
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    • 2006
  • It is known that overexpression of S-adenosyl-L-methionine (SAM) synthetase or exogenous addition of SAM enhances the production of actinorhodin, one of pigmented antibiotics found from Streptomyces coelicolor. In order to discover a novel compound as a signal molecule to produce actinorhodin instead of SAM, several compounds were synthesized based on the relationships between structures of the SAM analogues and their actinorhodin productivities. Of these, a few compounds showed better productivities of actinorhodin than SAM.

Effect of Auricular Acupuncture for Mental Stress on Heart Rate Variability(HRV) (이침 요법이 정신적 스트레스를 가한 성인의 심박변이도에 미치는 영향)

  • Lee, Jung-Hee;Mun, Kyoung-Suk;Kim, Jin-Won;Kwon, O-Seop;Jang, Bo-Hyoung
    • Journal of Acupuncture Research
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    • v.22 no.6
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    • pp.173-180
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    • 2005
  • Objectives : The purpose of this study was to assess the effect auricular acupuncture for acute mental stress using power spectrum analysis of the heart rate variability(HRV). Methods : 10 healthy volunteers participated in this study. After 5 minute rest, the first mental stress was provided for 5 minute. And then subjects rested for 15 minute. The second mental stress was provided for 5 minute. The acupoint, Shin-Mun point of the ear was stimulated for 15 minute. HRV was recorded before and after the first and second mental stress, and after auricular acupuncture stimulation. Results : After mental stress, normalized LF and LF/HF ratio is significantly increased. Before and after simple rest, normalized LF and normalized HF is significantly changed, but LF and LF/HF ratio is not significantly changed. On the other hand, before and after auricular acupuncture treatment, normalized LF, normalized HF is significantly changed, and also LF and LF/HF ratio is significantly decreased. Conclusion : The result suggest that auricular acupuncture can decrease more significantly in cardiac sympathetic activity due to mental stress than simple rest.

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A Case Report on the Distribution of Sasang Costitution in Dyspepsia Patients who had Undergone Upper Gastrointestinal Endoscopy (내시경 검사를 시행한 소화불량 환자 100례에 대한 사상의학적 분포 연구)

  • Jang, Bo-Hyoung;Ro, Im-Sun;Kim, Eun-Gon;Kweon, Hyug-Sung;Kweon, O-Seob;Lee, Jung-Hee
    • The Journal of Internal Korean Medicine
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    • v.25 no.4
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    • pp.337-345
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    • 2004
  • Objective : The purpose of this study is to determine a distribution of sasang constitution among dyspepsia patients, and to weigh their symptoms score. Methods : We surveyed symptoms of dyspepsia and QSCCII in one hundred dyspepsia patients who had undergone upper gastrointestinal endoscopy. Results : In distribution of sasang constitution in total dyspepsia patients group and distribution according to the result of endoscopy, ratio and symptoms score of So-Eum-tn were higher than the others. However the differences were not statistically significant. According to symptoms score by age, symptoms score of Tae-Eum-In in patients above 35 years old group was higher than the others. In patients group under 35 years old, symptoms score of So- Yang-In is higher than the others. However in neither group was this statistically significant.

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Three Cases of Patients Who Showed Abnormal Liver Function Values in Soyangin Gyolhyungjeung Treated with Hyeongbangdojeok-san-gami (형방도적산가미방(荊防導赤散加味方) 투여로 치료한 소양인 결흉증(少陽人 結胸證)으로 변증된 간기능 수치 이상 소견을 보인 환자 증례 보고 3례)

  • Son, Kyung-woo;Park, Soo-ah;Lee, Heun-ju;Baek, Ji-yeong;Nam, Woo-jin
    • The Journal of Internal Korean Medicine
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    • v.37 no.2
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    • pp.166-175
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    • 2016
  • Objectives: This case study reports on improvements after treating patients who had abnormal liver function values in Soyangin gyolhyungjeung with Soyangin hyeongbangdojeok-san-gami.Methods: The study was carried out with three patients who showed abnormal liver function values in Soyangin gyolhyungjeung. Liver function tests (LFT) and numerical rating scales (NRS) were used to evaluate symptoms.Results: After we treated three patients with Soyangin hyeongbangdojeok-san-gami, their symptoms and LFT results had improved considerably.Conclusions: Soyangin hyeongbangdojeok-san-gami appears to have a useful effect on abnormal liver function values in Soyangin gyolhyungjeung. Further clinical studies are needed to verify these findings.