• 제목/요약/키워드: MAU

검색결과 44건 처리시간 0.026초

MAU프로펠러 단독특성의 수식표현 (Polynomial Representation for MAU-Propeller Open Water Characteristics)

  • 서정천;이창섭
    • 한국기계연구소 소보
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    • 통권11호
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    • pp.95-101
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    • 1984
  • The MAU-series propellers were designed and tested in japan. This report presents the polynomial coefficients of open water Characteristics for each standard MAU-series propellers, obtained by multiple polynomial regression analysis in terms of pitch-diameter ratio and advance coefficient. The limitation of applicability and the accuracy of the regression polynomial are also discussed.

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鷄林類事의 織物關聯用語 硏究 I (A Study on the Textile Terminologies in Kei Lim yu Sa(鷄林類事) I)

  • 김진구
    • 복식문화연구
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    • 제7권2호
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    • pp.211-219
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    • 1999
  • The purpose of this study was to trace and identify termilogies recorded im kei lim yu sa. ma(麻), kyun(絹), po(布), je(苧), and je-po(苧布) were included in this study. For the analysis of this research comparative analytical methods was employed. Some significant findings and results of this study can be summarized as follows : 1. Text : hemp is called san(麻曰三). The word san of Koryo was derived from Indian sann, san, sana, sunn, 2. Text : Kyun is called jyi or kib(絹曰及). The word jyi(及) of Koryo was from jyi or kib() of Silla. 3. Text : Hemp cloth is called bey(bei), pey(pei), bai(布曰背). Be (베) has two meanings of hemp cloth and cloth in Korean. In the text it is interpreted as hemp cloth. 4. Text : Ramie or China grass is called mar, maw, mao, mu (毛). (苧曰毛). It is considered that the word mau(mo in Korean) (毛) in text is correct and word mau(毛) meaning China grass of Koryho is derived from mah or mak that is an old Egyptian name for flax or linen. The word mau(mo) (毛) of Koryo seems to be a transliteration of mah(or mak) in Korean or a variety of it. 5. Raime cloth or China grass cloth is clalled mau shy (苧布曰毛施). Silmar words to mau shy(毛施) of Koryo were found in Chinese, Manchurian and japanese as well as in Ancient Hebrew.

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중증 무지외반증에서 변형 Mau 절골술을 이용한 치료 (Modified Mau Osteotomy for the Treatment of Severe Hallux Valgus)

  • 배서영;김영은
    • 대한족부족관절학회지
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    • 제8권2호
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    • pp.117-120
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    • 2004
  • 저자에 의해 개선된 변형 Mau 절골술은 우수한 교정력과 견고한 고정이 가능하면서도 술기가 간단하고 중족골두의 상하 전위가 없고 조기 보행이 가능한 안전한 방법이라 할 수 있었다. 따라서 향후 장기 추시가 필요하긴 하지만 중족골간각이 큰 중증의 무지외반증에서 추천할만한 좋은 방법으로 사료된다.

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변형 마우 절골 술기의 유용성과 한계점 (30예 추시 보고) (The Value and Limitation of the Modified Mau Osteotomy (30 Cases Follow Up Report))

  • 배서영;김병민;남희태;최희준
    • 대한족부족관절학회지
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    • 제12권1호
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    • pp.1-8
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    • 2008
  • Purpose: To evaluate the value and limitation of modified Mau osteotomy through the review of 30 feet treated by this procedure. Materials and Methods: We retrospectively analyzed 30 cases treated with modified Mau osteotomy since 2002. The mean duration of follow-up was 10 months. We reviewed medical records to describe each case and select several clinical factors which related with surgical procedure and could influence on final results. We measured radiographic parameters such as hallux valgus angle (HVA), intermetatarsal angle (IMA), distal metatarsal articular angle (DMAA), sesamoid position and also assessed clinical outcomes by AOFAS score and satisfaction degrees. Results: The mean preoperative HVA and IMA were $40.4^{\circ}$, $17.4^{\circ}$ and the mean amounts of correction were $31.2^{\circ}$ and $11.5^{\circ}$. Amounts of delayed loss of correction were 16.8% in HVA and 19.2% in IMA. Initial HVA, rotational angle and translation distance of the distal fragment, stability of fixation, first ray instability were revealed as significant factors for the final result from this procedure. DMAA was increased by rotation of the distal fragment and decreased by adding translation on the rotation. Conclusion: Modified Mau osteotomy is an effective procedure to get enough correction. But, it is important to try to avoid excessive rotation of the distal fragment because it may worse joint congruity. It may be worthwhile to pay close attention to the direction of saw and stability of fixation.

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선박의 통합정보처리를 위한 IEC 61162-4 기반 TLI 프로토콜 설계 및 구현 (Design and Implementation of IEC 61162-4 based TLI Protocol for e-Navigation on Ship)

  • 장길웅;이장세;박휴찬
    • 한국정보통신학회논문지
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    • 제14권2호
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    • pp.351-359
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    • 2010
  • 본 논문에서는 선박의 통합정보처리를 위해 표준화된 IEC 61162-4 기반 TLI 프로토콜의 전송 알고리즘을 제안하고, 제안된 알고리즘을 기반으로 프로토콜을 설계 및 구현한다. 구현된 프로토콜은 TCP/IP 기반의 프로토콜로서 IEC 61162-4에서 제안하고 있는 MAU와 LNA의 표준에 따른 통신 프로토콜이며, 클라이언트/서버 모델을 기반으로 한 네트워크 구조에서 데이터 전송이 이루어진다. 개발된 TLI 프로토콜은 하나의 호스트 내에 MAU와 LNA간의 통신과 서로 다른 호스트의 LNA 간 통신이 이루어지며, 하나의 LNA에 대해 다양한 서비스를 제공하기 위해 멀티 MAU 구조로 구현된다. 표준 규격과 제안된 전송 알고리즘에 따라 객체지향 기법을 이용하여 프로토콜 설계 및 구현이 되었으며, 실제 선박에서 사용될 수 있는 간단한 네트워크 환경에서 실험을 하여 성공적으로 데이터 송수신이 됨을 확인할 수 있었다.

무지외반증에서 생체흡수성 나사못으로 고정한 변형 마우 절골술의 결과 (Results of Modified Mau Osteotomy Fixed with Bioabsorbable Screws in Hallux Valgus)

  • 김상환;윤영필
    • 대한족부족관절학회지
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    • 제19권3호
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    • pp.97-101
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    • 2015
  • Purpose: The purpose of this study was to analyze the clinical results of application of bioabsorbable screws in hallux valgus surgery using modified Mau osteotomy. Materials and Methods: We retrospectively reviewed medical records of 25 patients. Operations were performed between May 2013 and January 2014. We performed 33 modified Mau osteotomies and fixed using bioabsorbable screws. Mean age of patients was 52 years (range 19 to 71). Mean follow up duration was 13.2 months (range 12.3 to 18.9). The clinical evaluations included pain visual analogue scale (VAS) score, American Orthopaedic Foot and Ankle Society (AOFAS) score, and satisfaction score. Weight bearing anteroposterior radiographs were taken for measurement of hallux valgus angle (HVA), intermetatarsal angle (IMA), and distal metatarsal articular angle (DMAA). All radiographs were evaluated in order to detect complications related to bioabsorbable screws such as osteolysis, cyst formation, and fixation failure. Results: The mean pre- and postoperative pain VAS scores were 4.0 and 1.7 (p<0.05). The mean AOFAS score improved from 52.6 to 82.8 (p<0.05). Preoperative HVA and IMA were 31.2 and 13.9, respectively. Postoperative HVA and IMA were 5.2 and 6.2 (p<0.05). The DMAA increased from 7.8 to 9.9 (p<0.05). There was one case of superficial wound infection and one loss of correction, and no case of osteolysis, cystic formation around the screw, or deep infection. All patients showed union without fixation failure. Conclusion: The clinical and radiological evaluation of this study demonstrates reliable results without fixation failure or allergic reaction. The use of bioabsorbable screw appears not to be inferior to metal screw fixation in hallux valgus surgery.

자판기로 모바일뱅킹 월별 고객 활성화 (Boost Mobile Banking Monthly Active Customers with Vending Machines)

  • 주영걸
    • 디지털정책학회지
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    • 제2권1호
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    • pp.1-7
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    • 2023
  • 본 중국에서는 시중은행들이 모바일뱅킹을 출시하고 있으며, 동질화된 상품으로 모바일뱅킹 경쟁이 치열하다.모바일뱅킹 월간 활성고객(MAU)은 모바일뱅킹 운영 성과를 평가하는 중요한 지표로 시중은행들이 직면한 과제이다.본 연구의 목적은 자동판매기를 이용하여 모바일뱅킹의 월간 고객활성화를 위한 전략을 모색하는 것이다. 본 연구는 문헌법과 사례법을 통해 연구를 수행하였으며, 연구 결과에 따르면 자동판매기를 사용하면 모바일뱅킹의 월간 활성고객을 효과적으로 향상시킬 수 있을 뿐만 아니라 차별화된 전략을 실현하여 모바일뱅킹 시장을 점유할 수 있다.동시에 이 연구는 상업 은행의 비즈니스 발전에 일정한 도움과 지도 의의가 있다.

Genetic diversity of spotted scat (Scatophagus argus) in Vietnam based on COI genes

  • Huy Van Nguyen;Minh Tu Nguyen;Nghia Duc Vo;Nguyen Thi Thao Phan;Quang Tan Hoang
    • Fisheries and Aquatic Sciences
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    • 제25권12호
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    • pp.637-647
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    • 2022
  • A spotted scat, Scatophagus argus, has a high nutritional value and is among Asia's most widely consumed fish species. Thua Thien Hue's consumption market considers this species to be of high economic value and requires protection and conservation of the population. However, the studies on the identification and genetic diversity of S. argus distributed in Vietnam are still lacking. Therefore, mitochondrial cytochrome c oxidase subunit I (COI) gene was utilized to distinguish different populations and investigate the genetic diversity of two populations of S. argus from Tam Giang lagoon, Thua Thien Hue province (n = 31) and Ca Mau province (n = 14). The sequencing results indicated 13 distinct haplotypes among 45 sequences. Five single nucleotide polymorphisms were observed to distinguish Hue spotted scat population. The S. argus population in Ca Mau province was higher haplotype diversity (Hd) and nucleotide diversity (π) than those of Thua Thien Hue province, which demonstrates that there are minor differences between haplotypes. There were genetic distances ranging from 0%-4% within the populations and 6.67% between the two populations. In addition to the sequencing, the comparison of morphology, biology, culture, and the growth rate was sufficient to distinguish the spotted scat S. argus in Thua Thien Hue from Ca Mau.

어선용 고효율 표준 시리즈(KF 시리즈) 프로펠러를 위한 설계 연구 (Study on Propeller Design for Fishing Vessel's High Efficiency Standard Series Propeller (KF Series))

  • 이원준;김문찬;천장호;장진열;문원준;이창섭
    • 한국해양환경ㆍ에너지학회지
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    • 제14권2호
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    • pp.73-80
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    • 2011
  • 어선용 고효율 표준 프로펠러 개발에 대해 고찰해 보았다. 어선용 프로펠러의 경우 모형시험이나 이론해석을 통한 정도 높은 설계가 이루어지지 않고 시리즈 데이터(주로 MAU 시리즈)에 의존하여 초기설계 수준에 머무르고 있는 실정이다. 본 연구에서는 52톤 어선을 기준으로 개발되었으며 기존 MAU 형 프로펠러보다 성능이 우수한 프로펠러를 손쉽게 설계, 적용할 수 있는 NACA형 단면을 사용한 시리즈 프로펠러 자료를 제공하기위한 연구를 수행하였다. 또 한 기존의 복잡한 설계 방식 대신에, NACA형 프로펠러를 표준화하여 보다 편리하게 사용할 수 있도록 하였다. 향후 모형 시험을 통한 추진 성능 및 캐비테이션 성능 검증을 수행할 계획이다.

다운스뷰파크 국제설계경기를 통해 본 조경설계의 새로운 전략 (New Strategies for Contemporary Landscape Design -Downsview Park International Design Competition and Its Implications-)

  • 배정한
    • 한국조경학회지
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    • 제29권6호
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    • pp.62-71
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    • 2002
  • How parks are to be made in the twenty-first century should certainly be different. This is the inevitable conclusion of the recent significant international design competition for Downsview Park in Toronto, 2000. The purpose of this critical study is to investigate new strategies for urban park design manifested in the proposals of that competition and to explore alternative ways of landscape design that could solve the recent crisis of urban parks. Tree City, the winning entry, and other final entries proclaim that city is park and park is city. In this sense, Downsview Park marks the end of traditional Olmstedian parks and the dichotomy between city(culture) and park(nature). Rem Koolhaas and Bruce Mau's Tree City will become the model for urban park design in the near future. There are three reasons for this. First, its design is a strategy rather than a form. We can interpret that Tree City is to be developed over time as directed by six strategies: grow the park, manufacture nature, 1000 pathways, sacrifice and save, curate culture, destination and dispersal. Second, it places faith in landscape as a revenue generator instead of a fiscal liability. Third, its implementation is possible with crude installation, requiring virtually no craft. Koolhaas and Mau intend for Downsview to be an environment that is never actually designed but is formed through natural succession, cultural action, and programmatical insertions. Rather than designed objects and formal solutions, their strategy is to allow the landscape to evolve with changing uses.