• 공연문화연구
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• 제39호
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• pp.415-455
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• 2019

본 논문은 판소리 전승의 관점에서 정정렬제 춘향가의 정체와 범주를 명확히 하는 한편, 현대판소리에 남아있는 정정렬제 춘향가의 궤적을 밝히는 것을 목적으로 한다. 현전하는 정정렬 창 춘향가 소리 대목은 총 44개로, 사랑가 부분을 제외하고는 결연-이별-수난-재회 단락에 해당하는 대목이 거의 빠짐없이 갖추어져 있다. '이도령이 동헌으로 들어가는 대목', '황릉묘 대목', '어사가 춘향집을 찾아가 위로하는 대목'은 현행 춘향가와 장단 구성을 달리하는 차이가 있고, '이도령이 춘향 집 찾은 연유를 밝히는 대목'은 현행 춘향가에서 아니리로 구사되며, '남원에서 춘향을 열녀 대우하는 대목'은 박록주 창본에만 유일하게 나타나던 것이다. '어사가 남원 사람들을 모아 잔치 배설하는 대목'은 현행 춘향가에서 발견되지 않는 새로운 부분으로 연극적 재미를 추구한 창극소리에 해당한다. 한편 본 논문에서는 조선성악연구회의 활발한 창극 공연 및 <빅타판 춘향전>, <오케판 춘향전>의 연이은 발매가 있었던 1936년~1937년이 정정렬제 춘향가의 재정립에 중요한 시기였을 뿐 아니라, 그 이전에 정정렬제 춘향가를 사사한 창자들의 소리와 그 이후에 사사한 창자들의 소리에 차이가 있음을 확인하였다. 전자에는 박록주, 김여란, 김소희, 후자에는 김연수, 정광수, 박동진, 정광수, 강도근이 속한다. 또 하나, 김소희의 경우를 제외하면, 정정렬제 춘향가의 이러한 두 전승군은 정정렬제의 학습 시기에 따른 구분이면서 정정렬제 춘향가의 전판 계승 여부에 따른 구분, 그리고 남성과 여성의 성별에 따른 구분이기도 하다. 정정렬은 제자를 가르칠 때, 즉흥적인 판 짜기를 염두에 둔 '옛날식 판소리' 교수법과 판에 박은 소리를 염두에 둔 '근대적 판소리' 교수법을 병행하여 선택적으로 활용했다. 그 결과 정정렬제 춘향가의 전승에는 여성 창자 위주의 오롯한 전판 계승과 더불어 남성 창자 위주의 유파·바디에 따른 분화 두 양상이 공존하게 되었다.

• 한국초전도ㆍ저온공학회논문지
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• 제6권3호
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• pp.33-37
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• 2004

This paper presents the construction and test results of an HTS induction motor. End rings and short bars were made of HTS tapes, To increase the efficiency and starting torque, HTS tapes can be used as the rotor bars. Because large current is induced in the rotor circuit, HTS tapes quench and high starting torque can be obtained. As the speed of rotor builds up. HTS tapes which are used as short bars become superconducting state again. After the HTS tapes recover from quench, resistance of the rotor circuit is nearly zero. In that case, power loss in rotor circuit is eliminated. Stator of the conventional induction motor was used as the stator of the HTS motor. Rated capacity of the conventional motor was 0.75 kW. Performances of the HTS induction motor were compared with those of the conventional motor with same volume and specification. Test result showed that the speeds of the HTS induction motor were the same with synchronous speed up to 2.6 Nm and 1.788 rpm at 9.7 Nm. It guarantees the high efficiency of the HTS motor. Starting torque of the HTS motor was more than twice of the conventional motor.

• 한국표면공학회지
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• 제43권6호
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• pp.266-271
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• 2010

Ternary Mo-Cu-N films were deposited on Si wafer substrates with various copper contents by magnetron sputtering method using Mo target and Cu target in $Ar/N_2$ gaseous atmosphere. As increasing $N_2$ pressure, the microstructure of Mo-N films changed from ${\gamma}-Mo_2N$ of (111) having face-centered-cubic (FCC) structure to $\delta$-MoN of (200) having hexagonal structure. Detailed the microstructures of the Mo-Cu-N coatings were studied by X-ray diffraction, scanning electron microscopy and field emission transmission electron microscope. The results indicated that the incorporation of copper into the growing Mo-N coating led to the $Mo_2N$ and MoN crystallites were more well-distributed and refined and the copper existed in grain boundary. Ternary Mo-Cu-N films had a composite microstructure of the nanosized crystal crystalline ${\gamma}-Mo_2N$ and $\delta$-MoN surrounded by amorphous $Cu_3N$ phase.

• 한국세라믹학회지
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• 제43권12호
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• pp.839-845
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• 2006

Graphite has hexagonal closed packing structure with two bonding characteristics; (1) van der waals bonding between c axis, and (2) covalent bonding in the a and b axis. The weak van der waals bonds cause self-lubricant property, and the strong covalent bonds cause excellent electric and thermal conductivity. Furthermore, graphite is chemically very inert because of the material composed of only carbon elements. Thus, graphite is very useful for mechanical sealing materials. However, Graphite have porous microstructure because starting materials of graphite produce many volatile during the manufacturing processes. This causes low density of graphite, which is unsuitable for the mechanical sealing materials. Thus, further impregnation process is generally needed to enhance the graphite density. In this work, high density graphite is prepared with the principle of densification when coke and pitch binder, prepared from thermal treatment of coal tar pitch, become dehydrogenation during graphitization or carbonization.

• Preventive Nutrition and Food Science
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• 제7권1호
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• pp.22-27
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• 2002

The cellulase from internal organs of edible snails was purified by fractionation with ammonium sulfate, DEAE-Sephadex chromatography and gel filtration on Sephacryl S-200 and Superose 12 HR 10/30. The specific activity of the purified cellulase was 85.1 units/mg protein with 24.3 purification fold from crude extract. Molecular weight of the enzyme was estimated to be approximately 74,000 dalton by gel filtration chromatography and SDS-PAGE eletrophoresis. T7e isoelectric point of the enzyme was determined to be pH 4.6. The optimum temperature and pH of the enzyme were 5$0^{\circ}C$ and pH 6.0, respectively. The enzyme was stable at 30~5$0^{\circ}C$ and pH 6.0~10.0. It was activates by Mn$^{2+}$, but inhibited by Li$^{2+}$, Zn$^{2+}$, Ag$^{2+}$ and Hg$^{2+}$./TEX> 2+/.

• 분석과학
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• 제16권3호
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• pp.179-184
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• 2003

극성이 다른 여러 가지 용매를 사용하여 느릅나무의 뿌리 껍질(이하 유근피)을 추출하였다. MeOH 추출물이 SK-Hep-1에서 분리된 matrix metalloproteinase-9(MMP-9)의 zymography에서 저해능을 나타내었다. 분리 정제한 물질의 분자량은 GC-MS spectrum에서 $M^+=281$인 것으로 나타났고 MMP-9의 활성은 $314.7{\mu}g/g$에서 47% 억제되는 것으로 나타났다. 그리고 SK-Hep-1 세포주는 $31.47{\mu}g/g$에서 60%의 생존율을 나타났다.

• 대한한방부인과학회지
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• 제29권1호
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• pp.69-77
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• 2016

Objectives: The aim of this study is to evaluate the effect and satisfaction measurement of the Korean medicine treatment on the adolescent dysmenorrhea. Methods: The subjects of this study were 24 volunteers, suffering from dysmenorrhea, who were middle and high school students in Jeonbuk province. They were treated by Korean medicine, those were acupuncture, cupping, moxibustion and herbal medicine, for two months from July to December 2015. The results were investigated by the visual analogue scale (VAS) of overall pain, most severe pain and amount of the analgesic taken for menstrual period. The effects of treatment were assessed three times, those were before treatment, after treatment for 1 month and after treatment for 2 months, for two months. Results: The VAS score on dysmenorrhea was decreased significantly. Also, the VAS score on the disturbance in school activity was decreased significantly. The amount of analgesic taken for menstrual period was decreased, but not significantly. Conclusions: This study suggests that the Korean medicine treatment on the adolescent dysmenorrhea is effective.

• 한국수산과학회지
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• 제50권6호
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• pp.669-674
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• 2017

Paralytic shellfish toxins (PSTs) are produced by marine dinoflagellate phytoplankton Alexandrium spp. and Gymnodinium spp. These toxins accumulate in filter feeding organisms such as bivalves and the ingestion of contaminated shellfish can cause illness in humans. The mouse bioassay (MBA) has been the preferred PST testing method worldwide for more than 50 years. However, this assay has several disadvantages, such as detection limits, non-toxic-profiles, and the ethical issues of using animals. The aim of this study was to establish an alternative to the MBA method for testing for PSTs. We optimized the analysis conditions of a post-column oxidation-high performance liquid chromatography (PCOX-HPLC) method and the Scotia Rapid Test Kit, and then compared the accuracy of these methods to the MBA method. The results demonstrated a strong correlation between the PCOX-HPLC method and the MBA, although the PCOX-HPLC method required expensive equipment and standard material, and was time consuming. The Scotia Rapid Test Kit promises to be a useful tool, as it provided rapid and qualitative results, although the method sometimes gave a false positive result that could not be explained by toxin profiles.

• 전기전자학회논문지
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• 제22권3호
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• pp.822-828
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• 2018

최근 전력 사용량의 증가로 인한 대규모 블랙아웃 등 에너지 문제가 대두되고 있으며, 이 문제들로 인해 전력 소비량 예측에 대한 정확도를 개선할 필요성이 부각되었다. 본 연구에서는 딥 러닝 기반의 전력 사용량 예측 실험을 통해서 실제 전력 소비량과 예측된 전력 소비량의 차이를 계산하고, 이를 통해서 전력 예비율을 기존 대비 하향 조정할 수 있는 가능성에 대해서 살펴본다. 예비 전력은 사용하지 않으면 손실되는 전력으로, 본 논문에서의 딥 러닝 기반 전력 소비량 예측을 통해서 여분의 전력을 과도하게 생산하지 않도록 오차범위 내에서 전력 예비율을 감소시킬 수 있는 기반을 마련할 수 있다. 본 논문에서 사용하는 딥 러닝 기법은 시계열 데이터를 처리하는 Long-Short-Term-Memory(LSTM) 구조의 학습 모델을 이용한다. 컴퓨터 시뮬레이션에서는 임의 생성한 전력 소비 데이터를 토대로 모델을 학습시키고, 학습된 모델을 토대로 전력 사용 예측값을 구하고 실제 전력 소비량 간에 오차를 계산한 결과 오차율 21.37%를 얻을 수 있었다. 이는 최근의 전력 예비율 45.9%를 고려할 때, 본 연구에서 제안한 전력 소비량 예측 알고리즘을 적용하는 경우 20% 포인트 정도의 예비율 감축이 가능하다.

• 한방안이비인후피부과학회지
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• 제25권3호
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• pp.129-149
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• 2012

Objective : The purpose of this study is to investigate the effect of cosmetic cream containing Samwhangsejegamibang Extracts on Atopic dermatitis patients. Methods : A total of 51 patients who visited Wonkwang Oriental Medical Center from April 8th, 2011 to October 8th, 2011 were included in this study. In this study, the patients were treated with Samwhangsejegamibang (experimental group) and placebo group. We observed scorad index, IGA, moisture content of skin, oil content of skin, wrinkled skin and hematological examination for 4 weeks. Results : 1. Comparison of changes in Scorad Index, depending on the perspective, the experimental group showed a statistically significant decline than the placebo group. 2. Comparison of change in IGA, depending on the perspective, the experimental group showed a statistically significant decline than the placebo group. 3. Comparison of change in moisture content, oil content of skin and wrinkled skin, both the experimental group and the placebo group showed level elevation but there was no statistically significant change. 4. Comparison of change in IgE and Eosinophil, both the experimental group and the placebo group showed no statistical significance. Conclusions : Considering the above experiments, it is suggested that cosmetic cream containing Samwhangsejegamibang extracts have a positive effect on atopic dermatitis patients.