http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 이언경 (검색결과 68 건)
- 무료
- 기관 내 무료
- 유료
-
DUAL PRESENTATION AND LINEAR BASIS OF THE TEMPERLEY-LIEB ALGEBRAS
이언경,이상진 대한수학회 2010 대한수학회지 Vol.47 No.3
The braid group Bn maps homomorphically into the Temperley-Lieb algebra TLn. It was shown by Zinno that the homomorphic images of simple elements arising from the dual presentation of the braid group Bn form a basis for the vector space underlying the Temperley-Lieb algebra TLn. In this paper, we establish that there is a dual presentation of Temperley-Lieb algebras that corresponds to the dual presentation of braid groups, and then give a simple geometric proof for Zinno’s theorem,using the interpretation of simple elements as non-crossing partitions.
-
-
-
이언경,장지선,백종실 한국무역학회 2009 貿易學會誌 Vol.34 No.5
This paper aims to present a framework for categorizing and evaluating the competitive position of key products in order to maximize export values and volumes to the United States and the World. Key products are divided into 7 groups by using Ward cluster method based on TSI(Trade Specification Index) matrix values. Also, 7 groups are categorized into two sectors; comparative advantage sector and comparative disadvantage sector, by the three factors; TSI, measures of dynamic comparative advantage, and export market share and growth rate of each product. Comparative advantage sector consists of two patterns of having successful price competitiveness and decreasing comparative level despite price competitiveness. Comparative disadvantage sector includes two patterns of deficit quality competitiveness and price competitiveness. As a result of that, decision makers should have different trade policy for each pattern to maximize competitiveness in trade with the United States.
-
-
-
-
단층촬영법과 측사위경두개 촬영법을 이용한 정상인 하악과두 위치에 관한 비교 연구
이언경,고광준,신금백 全北大學校 齒醫學硏究所 1991 전북치대논문집 Vol.9 No.1
The author analyzed and compared tomographs with lateral oblique transcranial radiographs of 60 temporomandibular joints from 30 asymptomatic young adults. The results were as follows : 1. The mean height & width of condylar head were 6.82±1.99㎜, 11.98±1.28㎜ in tomographs and 5.41±0.79㎜, 10.67±1.28㎜ in transcranial radiographs. 2. The mean height of articular fossa was 10.19±1.60㎜ in tomographs and 8.44±1.65㎜ in transcranial radiographs. The mean width of articular fossa was 20.71±2.98㎜ in tomographs and 17.47±2.58㎜ in transcranial radiographs. There were significant differences in both the height and the width of articular fossa between two radiographic techniques(P<0.01). 3. In centric occlusion, the superior joint spaces were 4.28±1.09㎜, 4.18±1.28㎜, the anterior joint spaces were 2.84±1.02㎜, 2.53±0.72㎜, the posterior joint spaces were 2.84±1.02㎜, 2.53±0.72㎜, the posterior joint spaces were 3.11±1.19㎜, 2.66±0.89㎜ in tomographs and transcranial radiographs respectively. There were significant differences in right posterior joint spaces(P<0.05), and posterior joint spaces(P<0.05) between two radiographic techniques. 4. The condylar position in articular fossa was displaced posteroinferiorly (-0.35±4.40㎜ posteriorly, -1.55±1.24㎜ inferiorly) in tomographs and anteroinferiorly (0.45±3.77㎜ anteriorly, -1.29± 1.26㎜ inferiorly) in transcranial radiographs with 1 inch opening. In maximum opening, it was displaced anteroinferiorly (5.39±3.63㎜ anteriorly, -1.22±1.67㎜ inferiorly) in tomographs and anteroinferiorly (6.35±4.00㎜ anteriorly, -0.55±1.98㎜ inferiorly) in transcranial radiographs. There was significant difference in superoinferior positions of both condyles with maximum opening between two radiographic techniques(P<0.05).
-
이언경,정동훈,최상희 한국해운물류학회 2014 해운물류연구 Vol.30 No.3
The purpose of this paper is to introduce the new concept container terminal in order to handle cargo containers of mega sized container vessel more than 24,000 TEU within 24 hours. The number of mega sized container ships is increasing rapidly since 2004. Recently, according to a leading shipping and port experts forecasted preparations for the construction of a 24,000 TEU container ship, which is 5,000 TEU bigger than the current largest vessel, could start in 2016. Many global ports are ready for accommodating mega sized container ships. Productivity of each gantry crane in Busan Port is maximum 30 moves per hour, and the average number of cranes are six per above 13,000 TEU ship. When a 24,000 TEU mega sized vessel enters a port, the cargo handling time of this ship is not within 24 hours. In order to handle containers of 24,000 TEU within 24 hours, container terminals need fundamental innovation in technology for processing containers. Therefore, this paper introduced the new concept container terminal, HOSS(Horizontal Overhead Shuttle System) and described the characteristics and strengths of this system. This HOSS has two major benefits. First, the HOSS has a good berth productivity and more stack containers in yard compared to the same size of current container terminal in Busan. Second, it is divided into vertical and horizontal direction for transporting containers to reduce the bottleneck of container traffic. 이 논문은 24,000 TEU급 이상의 극초대형선을 24시간 내 처리하기 위한 신개념 컨테이너터미널을 소개하는 것을 목적으로 하고 있다. 2004년 이래 극초대형 컨테이너선의 수가 급속하게 증가하고 있고, 국내외 해운·항만전문가들이 현 최대선형인 1만9천 TEU보다 5,000 TEU 더 큰 24,000 TEU급 선박의 건조가 2016년에 시작될 것이라고 예측하고 있다. 그러나 전 세계 항만은 이러한 극초대형선을 처리할 준비가 되어 있지 않다. 예를 들면 부산항의 시간당·안벽크레인당 생산성이 최대 30개인데, 24시간 내 13,000 TEU급 선박을 처리하기 위해 평균 6대의 안벽크레인이 투입된다. 동일한 성능의 컨테이너터미널에서 24,000 TEU급 선박을 24시간 내에 처리하기 위해서는 항만기술 및 시스템의 근본적인 혁신이 필요하다. 이에 본 논문에서는 이러한 신기술을 반영한 신개념 컨테이너터미널인 수평형 오버헤드 셔틀 시스템(HOSS)의 특징과 장점을 소개한다. HOSS는 2가지의 큰 장점이 있다. 첫째는 현 부산항 컨테이너터미널과 같은 부지면적에 더 많은 컨테이너를 적재하고, 기존보다 더 빠른 안벽생산성을 제공한다는 것이다. 두 번째 장점은 수직이송과 수평이송을 상부와 바닥으로 완전히 분리함으로써 컨테이너 이송 시 발생하는 교차와 병목현상을 최소화했다는 것이다.
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
