• The Journal of Advanced Prosthodontics
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• 제2권2호
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• pp.58-60
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• 2010

Presurgical prosthetic treatment planning is critical for the success of the implant prosthesis. Inadequate treatment plan, due to insufficient discussion between prosthodontist, and surgeon, may result in poor prognosis. A 26-year-old male patient was referred for prosthodontic treatment after implant was placed in the area of teeth #17,16, 22, 25 and 27, without adequate discussion nor the treatment planning between oral surgeon and prosthodontist. It was found that the patient had two hopeless teeth, and a severely resorbed alveolar ridge. Additional tooth extraction was needed and the type of definitive prosthesis was shifted from fixed type to removable one. Proper pre-surgical treatment planning is essential for the good prognosis. Implant-supported removable prosthesis on milled bars may be a useful treatment option in patients with incorrect angled placement on severely resorbed alveolar ridge.

• Journal of Information Technology Applications and Management
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• 제9권2호
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• pp.33-56
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• 2002

This paper shows that internet retailers adjust the total expenses of their customer's purchase by the nominal price of each product and the delivery fee of the purchase. This paper compares the total expenses of purchasing a bundle of goods in the internet market against the total expenses of purchasing the same bundle of goods in the traditional market. The results show that the type of goods and the total expenses of a purchase, together with their interaction, determine up to 60% or 80% of the variance of the difference between the expenses up the same purchase in the two markets. The results also show that neither the expenses of a purchase nor its interaction with the product type affects the dispersion of total purchase expenses in the internet market.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.1116-1117
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• 2007

In this paper, the control method of maximum power point tracking (MPPT) using the duty ratio control of buck-type dc/dc converter is presented for seaflow generation system. The advantage of the proposed MPPT method is that characteristics of seaflow generator(SG) with respect to seaflow speed, required in the conventional MPPT method, are not needed. Also, due to using the SG output power as a control parameter, neither characteristics of the seaflow speed nor measurements of the rotational speed of the generator are required. Thus, there are advantages that seaflow generation system having features of lower cost and complexity, and higher reliability can be designed. In this paper, Seaflow generation system using the buck-type dc/dc converter is proposed and the effectiveness of the MPPT algorithm is confirmed by matlab simulink.

• 정보처리학회논문지D
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• 제15D권3호
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• pp.421-428
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• 2008

협업여과 기법은 추천 시스템에서 널리 사용되는 기술이지만, 소비자의 참조그룹을 선정하는 방법에 따라 추천의 정확도가 달라지는 특성을 가지고 있다. 이에 본 논문에서는 콘텐츠 추천의 정확도를 높이기 위하여 소비자의 감성과 소비유형을 참조그룹으로 하여 협업여과기반으로 콘텐츠를 추천하는 기법을 제안한다. 소비자의 감성을 기쁨, 슬픔, 혐오, 행복, 이완 다섯 가지로 구분하고, 소비유형을 저실용/저쾌락, 저실용/고쾌락, 고실용/저쾌락, 고실용/고쾌락 네 가지로 구분하여 콘텐츠 추천 기법의 성능을 분석한 결과, 본 논문에서 제안하는 기법으로 콘텐츠를 추천한 경우가 소비자 감성과 소비유형을 고려하지 않은 전체 참조그룹으로 추천한 경우보다 정확도가 향상됨을 확인하였다.

• Journal of Korean Neurosurgical Society
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• 제29권11호
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• pp.1461-1468
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• 2000

Objective : The aim of this study is to evaluate clinical outcome of anterior screw fixation for type II odontoid fractures for the prliematim of atlanatoaxial mobility. Methods : Between 1995 and 1999, we treated 15 cases of type II odontoid fractures by anterior screw fixation among 44 cases of odontoid fractures. Thece included 14 males and 1 female aged from 23 to 63 years, with a mean age of 39.7 years. The causes of trauma were traffic accident in 13 cases, slip down in 1 and fall down in 1. The fracture type was type II-P in 7 cases, type II-A in 3, type II-N in 2 and type II-A and P in 3. The fracture line was oblique downward and backward in 6 cases, oblique downward and forward in 3 and horizontally in 6. The range of follow up was 4 to 47 months(mean 26.5 months). Results : Adequate reduction and fixation were obtained in 12 cases. Three cases in which fracture type and line were type II-A and oblique downward forward were failed, so posterior transarticular screw fixation was performed. All except 3 failed cases had adequate cervical movement and stability. There were no operative mortality nor morbidity. Conclusion : Anterior screw fixation provides the best anatomical and functional results for type II odontoid fracture with intact transverse ligament when fracture line is horizontal or oblique downward and backward. But it is limited when fracture line is oblique downward and forward.

• 한국학교보건학회지
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• 제12권2호
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• pp.263-280
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• 1999

The purpose of this study is to present basic data to be used in the development of a sexual education program to create an affirmative sexual egoism. We classified the types of subjectivities and revelation attitudes of menstrual experience in 5th and 6th elementary school girls. The analytic method of data was a "Q-method" (William Stephenson). The results of this study classified four-types. The first type is an "open type". Girls of this type accepted menstrual experience as neither disease nor an embarrassment but as an important and natural course for a woman. The second type is the "concealing type". Girls of this type keep silent and conceal menstruation from persons because they consider it shameful or disgrace. The third type is the "conceited type". Girls of this type think that menstruation is painful-but only for them. Also, they accept such pains being 'grown-up'. The fourth type is the "tomboy type". Girls of this type want to be an eternal child; they hate being born a woman and think menstruation is troublesome. As a result of this research, we have concluded that it is necessary to educate girl students before they experience menstruation in order to develop positive attitudes towards sexuality and in so doing, aid them through adolescence.

• 복식
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• 제61권3호
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• pp.20-35
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• 2011

The purpose of this study is to investigate war helmets that were worn by high navy officers during the period of Japanese Invasion of Korea(1592~1598). War helmets worn during the War are classified into three types depending on whether they have a visor or 'cheom' and tongues or 'drim'. The war helmets of circumferential type has neither cheom nor drim. Those of cheom type has cheom, but not drim. And those of drim type has both drim and cheom or jeonbi. The war helmets of cheom type consist of a gamtu which is made of steel and looks like a reversed bowl and cheom that surrounds the entire circumference of gamtu. The war helmets of drim type are reclassified into two types in accordance with the shape of the gamtu and whether they have ganju. Of the two types, one type looks like a reversed bowl and has decorations on the top without ganju. The other type looks like a bottle neck and has ganju on the top, decorations above ganju. War helmets were in transition during the period of Japanese Invasion of Korea. Both the war helmets of cheom and drim types were worn during the War. At that time, the officers also wore war helmets having no ganju and looking like a reversed bowl and those having ganju and looking like a bottle neck. During the period, most war helmets were made of steel, but in the 18th and 19th centuries, most of them were made of leather.

• 한국콘텐츠학회논문지
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• 제15권2호
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• pp.139-150
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• 2015

본 연구를 통해 관객이 공연관람을 하기 위하여 구매 의사에 미치는 요인에 대해서 조명해보고자 한다. 설문을 통해 수집된 표본에 대해 군집 분석을 사용하여 관객유형을 나눈 후 관객유형에 따라 공연관람을 하기 위한 요인이 구매 의사에 어떻게 다른 영향을 주는지 알아보고자 하였다. 관객유형을 구분하기 위한 신뢰성을 높이기 위해 다양한 연령층과 공연예술 관람 경험 유무와는 상관없이 표본을 구성하여 평가하였다. 관객유형에 따른 구매의사의 영향 요인을 분석하기 위해 요인분석과 신뢰도분석을 실시하였다. 그리고 구조방정식모형을 이용하여 관객유형이 조절변수로 어떻게 영향을 미치는지 검증하고자 AMOS 프로그램을 이용하였다. 분석결과 연구자가 제시한 관람동기와 공연작품 품질이 구매의사에 유의한 영향을 미쳤고, 관객유형이 각 영향요인에 조절효과를 가지고 있었다. 따라서 공연예술 단체들이 마케팅 전략을 세울 때 관객유형을 파악하여 유형에 맞는 적절한 전략을 세울 수 있도록 이바지하고자 한다.

• 한국산업융합학회 논문집
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• 제20권3호
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• pp.245-256
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• 2017

In this study, we describe a new approach to real-time implementation of working path control for the forging and casting manufacturing process by vertical type articulated robot system. The proposed control scheme is simple in structure, fast in computation, and useful for real-time control of factory automation based on robot system. Moreover, this scheme does not require any accurate parameter information, nor values of the uncertain parameters and payload variations. Reliability of the proposed controller is proved by simulation and experimental results for robot manipulator consisting of arm with six degrees of freedom under the variation of payloads and tracking trajectories in Cartesian space and joint space. The vertical type articulated robot manipulator with six axes made in SMEC Co., Ltd. has been used for real-time implementation test to illustrate the enhanced working path control performance for unmanned automation of the forging and casting manufacturing process.

• 복식문화연구
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• 제18권6호
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• pp.1254-1260
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• 2010

In such special or precious occasions as a wedding ceremony, brides, handicapped or not, wish to wear a beautiful wedding dress. However, an ordinary wedding dress is not suitable nor convenient to a bride who has a bodily impediment. A one-piece type wedding dress, which even a normal bride needs assistants to help her wear, will create more inconvenience to crippled females. In this connection, this study is purposed to convert a normal ready-made wedding dress design into one suitable to the bodily handicapped females. For handicapped people on a wheelchair who generally put on and off a wedding dress while sitting on the chair, a one-piece type wedding dress is divided into the top and the skirt to make it a two-piece type wedding dress which is easy to get into and take off. The top should be separated from the skirt in such a manner that the wearer may not be aware of the division of the two pieces but easily put on and off since the sides or back of the top is opened. An opening is also given to the sides of the skirt so that handicapped people may sit on the skirt on the chair and then close the opening by themselves. Converting ready-made wedding dress design into functional clothes for handicapped people is really significant in that ready-made clothes can be recycled, their production cost reduced, and the economic burden of handicapped people relieved.