• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2004년도 춘계 학술발표대회 개요집
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• pp.305-307
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• 2004

One set of rotor coils is required per each large generator rotor assembly, Rotors consist of two directly opposing poles. Each pole requires from 5 to 9 coils. Each coil is made up of two halves identified on the connection end. These coil halves will be joined together by butt brazing process during subsequent rotor assembly. Each half coil is made up of typically 4 to 9 layers of copper conductors. Because of Generator rotor is rotated very high speed with 3,600RPM, the quality soundness of brazed joints is very important at each coil. But, it is very difficult to be optimized non-destructive evaluation, because c-coil has the long shape and evaluation is to be done assembled condition. In this paper introduce newly developed inspection process and acceptance standards for the ultrasonic inspection of " C" coil butt braze. This inspection system is a semi-automatic ultrasonic flaw detector with data acquisition and retention capable of assessing the relative lack of bond of brazed butt joints

• 복식문화연구
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• 제11권4호
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• pp.513-524
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• 2003

The purpose of this study was to trace the development of Chintz pattern design through fashion history, and to focus on its application in modern times with special emphasis on filtered Chintz patterns. Chintz patterns use such motives as tree, animal, bird, and geometrical shapes, etc.. It reached the peak of its popularity with William Morris. His influence continued from the end of the 19th century through to the 20th century. Modern Chintz designs have been modified and diversified in different cultures through time, and such diversification & changes can be easily found in modern fashion. From previous studies and other related sources, we found that Chintz patterns were revived in modern fashion trends with some modification. We also discovered the importance of chintz pattern designs in ethnic and retro trends. Thus in conclusion, this study revealed the significance, flexibility, and lasting popularity of Chintz pattern designs in fashion history.

• 한국식생활문화학회지
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• 제20권2호
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• pp.253-260
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• 2005

This study was conducted to investigate performance of methods for cooking and thawing frozen cooked rice to retard retro-gradation of cooked rice. For this research, That was executed rice's physicochemical and sensory characteristics test through the way of boiling rice or thawing, and found out best way for retro-gradation and taste. This study showed the rice cooked by pressure rice pot has less dehydration during freezing and thawing, and thawed rice by micro wave has less dehydration. Repetition of freezing and thawing resulted increasing of hardness and chewiness, and decreasing of adhesiveness and cohesiveness. The rice cooked by convotherm oven or pressure rice pot has less increased hardness while freezing and thawing. Adhesiveness was superior when rice was cooked by pressure rice pot. The rice thawed by microwave had more hardness than thawed in room temperature.

• 한국의류학회지
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• 제26권11호
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• pp.1649-1659
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• 2002

It is anticipated that, in the 21st century, aesthetic sense will be altered radically with the introduction of new value systems and ethical standards. At the beginning of the 21st century, new aesthetic senses and identities have already emerged and exerted influence to the society, arts and fashion trends. The purpose of this study is to analyze the aesthetic characteristic of the transitional period of the 21st century. This study employed the qualitative analysis and the main aesthetic characteristics of the 21st transitional period were found as hybrid, technicism, neo-retro, new naturalism, and multi-nationalism. The transitional fashion in the 21s1 century mirrors the post-modern trends with diversity and indeterminacy as the basis of changes. It is expected that this pattern will continue to extend persistent and dominant influence to the future fashion industry. In the subsequent study, quantitative analysis wi]1 be conducted to verify the aesthetic characteristics analyzed in this study.

• 복식문화연구
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• 제15권4호
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• pp.634-646
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• 2007

The aim of his study is to understand the developed aspect and proportions of the exotic images. Thus, this analyzed the exotic images in domestic fashion brand items as an relevance with fashion trend information. The exotic images are in the order of 'ethnic', 'retro', artistic', 'elegance', 'primitive', 'seductive', 'folklore', 'extreme hybrid', 'romantic', 'natural', 'splendid', 'bohemian', 'classical', 'kidult', 'modern', 'traditional', 'vintage' expressed in domestic fashion goods by the categories of its key-words expressed fashion trend information, and suitable for the fashion trend in 21C and fashionable for goods in the domestic fashion market by expressing the racial costume images and retro look, the maximized women's elegance, the difference images with an humor and unfamiliarity.

• 제어로봇시스템학회논문지
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• 제22권4호
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• pp.247-252
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• 2016

In this paper, we propose a new defect detection technology for micro-defect on the surface of steel products. Due to depth and size of microscopic defect, slop of surface and vibration of strip, the conventional optical method cannot guarantee the detection performance. To solve the above-mentioned problems and increase signal to noise ratio, a novel retro-schlieren method that consists of retro reflector and knife edge is proposed. Moreover dual switching lighting method is also applied to distinguish uneven micro defects and surface noise. In proposed method, defective regions are represented by a black and white pattern. This pattern is detected by a defect detection algorithm with Gabor filter. Experimental results by simulator for sample defects of cold rolled steel show that the proposed method is effective.

• 동굴
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• 제88호
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• pp.31-37
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• 2008

There are many beautiful volcano caves in Je-ju island which is biggest volcanic island in Korea. The typical volcano caves are ManJang-gul, HyupJe-gul and MiCheon-gul, etc. Among them the MiCheon-gul name is originated from the beautiful things of cave which were more than thousands in there. This MiCheon-gul cave has another feature in special. It is about a native plant bracken living among the various live creatures and plants in MiCheon-gul cave, however, it is growing contrary under the vertex of the cave grown at retro-gravity, as one of the famous things of the proud cave. Therefore, it was contemplated and investigated on the habitat of a mode of life and ecological adaptation on the native plant of bracken include the geomorphic and geographic features of the MiCheon-gul cave.

• 한국동물학회:학술대회논문집
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• 한국동물학회 2000년도 공동 춘계학술대회
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• pp.37-37
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• 2000

No Abstract, See Full Text

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 추계학술대회 논문집
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• pp.79-80
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• 2006

• Journal of Dental Anesthesia and Pain Medicine
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• 제17권2호
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• pp.121-127
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• 2017

Background: There are no studies regarding 4% articaine infiltration injection into the retro-molar area for an impacted lower third molar (LITM) surgery. This study aimed to evaluate the efficacy of infiltration using 1.7 ml (single cartridge: SC) of 4% articaine versus 3.4 ml (double cartridges: DC) of 4% articaine with 1:100,000 epinephrine in LITM surgery. Method: This study involved 30 healthy patients with symmetrical LITM. The patients were assigned to receive either a DC or SC of 4% articaine with 1:100,000 epinephrine as a local anesthetic for each operation. Onset, duration, profoundness, need for additional anesthetic administration, total volume of anesthetic used, vitality of the tooth, and pain score during operation were recorded. Results: The DC of 4 % articaine had a significantly higher success rate (83.3%) than did the SC (53.3%; P<0.05). The duration of soft tissue anesthesia was longer in the DC group. The intra-operative pain was higher in the SC group with a significant (P < 0.05) requirement for a supplementary local anesthetic. Conclusion: We concluded that using DC for the infiltration injection had a higher success rate, longer duration of anesthesia, less intra-operative pain, and a lower amount of additional anesthesia than SC in the surgical removal of LITM. We recommend that a DC of 4% articaine and a 1:100,000 epinephrine infiltration in the retro-molar region can be an alternative anesthetic for LITM surgery.