현재 서해외측 진입항로에서 한강까지 동서방향으로 총 18km의 수로 구간으로 형성된 경인 아래빗길이 건설 예정되어 있다. 수로가 건설되면 여러 종류의 선박들이 통항이 예상되는데 현재 우리나라에서는 이러한 수로의 안전운항 및 관리하기 위한 어떠한 규 칙도 제정되어 있지 않다. 이 연구에서는 경인아라뱃길의 안전운항 및 관리규칙을 제안하고자 한다.

For the safety and cost reduction in the navigation, the automatic and intelligent system has been developed for the vessel, and the most important factor in the system is to decide the collision risk exactly. In this paper, we propose an advanced collision risk decision system for collision avoidance of the system. The conventional researches using DCPA and TCPA for calculating the collision risk have a problem to produce a same collision risk regardless of bearings for the ships, if they are located in the same distance from own ship. To solve this problem, in addition to DCPA and TCPA, we introduce the factor of VCD(variation of compass degree) and constant, CR which derived from COLREG'72(International Regulation for Preventing Collision at Sea, 1972) for evaluating the collision risk including even the burden of own ship navigator due to the encountering angle of each vessels. We decided the collision risk legally by the rule considering the relative situation of vessels. And therefore, the proposed system has two advantages, of which one is to produce more detail collision risk and another is to reflect the real underway situation in conformity with the rule.

This paper introduces fourteen single, double, multiple and sequential acceptance sampling plans based on switching rule. Revised KS standards for acceptance sampling by attribute and by variable such as KSA ISO 2859-0, 1:2001 2859-2:2001, 8422:2001, 3951:2006, 8423:2001, MIL-STD-105E:1989, 414:1968 and ANSI/ASQ Z1.4, Z1.9:2003 are presented.

This study conducts a sociolinguistic analysis of coordinate word order in Korean. The results can be summarized as follows: (i) Word placement (P1, P2) of coordinate word order is determined by the elements of lexical hierarchy, basic vocabulary, word frequency and sociocultural meaning. The elements of lexical hierarchy, basic vocabulary, and word frequency designate the status along the familiar-estranged and superior-inferior axes. (ii) The primary types of coordinate word order are divided into right order (pattern A) types and counter order (pattern B) types. Further, these are based on the arrangement of affirmative meaning (Af) and negative meaning (Ne), which are in accordance with word placement and the sociolinguistic rules of the alternative rule and co-occurrence rule. (iii) The environment types of coordinate word order include natural word order, social word order, and belief word order. The types of word order use include freezing word order and situational order. Therefore freezing word order and situational order, combined with right order and counter order, constitute the formation rule of word order. Based on our saram/horaŋi (man and tiger) example, we describe the input and output of word order. (iv) Coordinate word order comprises different types of word order use, which are influenced by gender variety. Further, the pooling of word order types forms a sociolinguistic pattern and a V-shaped curve. There is also generation variety, which also allows for sociolinguistic patterns to be formed through pooling. The criteria for a W-shaped curve are bi-order, right word order, and counter word order, which combine to form an age-grading and undulating pattern. Finally, there is class variety. In rural dialects class references are used. High classes use the right word order of new types, while low classes use the right word order of old types.

  A process mining is considered to support the discovery of business process for unstructured process model, and a process mining algorithm by using the associated rule and sequence pattern of data mining is developed to extract information about process

Ordered to FePt nanoparticles are strong candidates for high density magnetic data storage media because the phase FePt has a very high magnetocrystalline anisotropy , high coercivity and chemical stability. In this study, the ordered FePt nanoparticles were successfully fabricated by chemical vapor condensation process without a post-annealing process which causes severe particle growth and agglomeration. The nanopowder was obtained when the mixing ratio of Fe(acac) and Pt(arac) was 2.5 : 1. And the synthesized FePt nanoparticles were very fine and spherical shape with a narrow size distribution. The average particle size of the powder tended to increase from 5 nm to 10 nm with increasing reaction temperature from to . Characterisitcs of FePt nanopowder were investigated in terms of process parameters and microstructures.

We adapted association rules of data mining in order to investigate the relation among the factors of musculoskeletal disorders and proposed the method of preventing the musculoskeletal disorders associated with multiple logistic regression in previous study. This multiple logistic regression was difficult to establish the method of preventing musculoskeletal disorders in case factors can't be managed by worker himself, i.e., age, gender, marital status. In order to solve this problem, we devised association rules of factors of musculoskeletal disorders and proposed the interactive method of preventing the musculoskeletal disorders, by applying association rules with the result of multiple logistic regression in previous study. The result of correlation analysis showed that prevention method of one part also prevents musculoskeletal disorders of other parts of body.

  This study presents the new dispatching rules for improving performance measures of job shop scheduling related to completion time and due dates. The proposed dispatching rule considers information, which includes the comparison value of job workload, w

  We can offer suitable information to users analyzing the pattern of users. An association rule is one of data mining techniques which can discover the pattern. We use an association rule which considers the web page visiting time and we should the patte

  The potential needs as well as visible needs of customer should be considered in order to research and analyze of the customer data. The methods to analyze customer data is classified into customer segmentation, clustering analysis model, forecasting cu

엄밀한 지반-구조물 상호작용 해석을 위해서는 지반에 대한 묘사가 적절히 이루어져야 한다. 그러나 물성이 불연속적이거나 지층의 모양이 복잡할 때에는 유한요소망을 구성하는 것이 어려운데, 그 이유는 유한요소망이 지층의 모양을 정확히 나타내어야하기 때문이다. 이러한 어려움을 극복하기 위하여 본 연구에서는 지층의 불연속선을 따라 요소를 재배열하지 않고 엄밀하게 수치적분이 가능한 방법을 채용하였다. 그 결과로 정렬된 요소망을 그대로 이용하게 되어 강성행렬의 성질이 좋아지며, 해석 또한 신뢰성이 높아지게 되었다. 이 해석 방법을 이용하여 지진응답에 미지는 지층의 영향을 조사하였으며, 결과적으로 복잡하고 불연속적인 물성을 가지는 지층으로 이루어진 지반과 구조물의 상호작용을 해석하는 데에 쉽게 이용 될 수 있음을 보였다.

In this paper, we present a temporal association rule based on item time intervals. A temporal association rule is an association rule that holds specific time intervals. If we consider itemset in the frequently purchased period, we can discover more sign

It is highly recommended that companies should consider the organic complexes between variables and which new variable should be introduced. In addition, companies should determine to which extend they should respond to the diversification and complexity of consumers. In this regard, CLV (Customer Lifetime Vale) will be the main subject to be considered by companies in the future.

Users who use Web site wish to get information conveniently. To users who web site operators use Web site differentiation to provide done service pattern analysis by user do must. Association rule is one of data Mining techniques for pattern discovery. If search for pattern by user, differentiation by user done service offer can. Association rule search result that pattern by user can know, and considers web page visiting time for association rule search differentiation done web structure service and recommendation service possible.

본 연구에서는 반도체 업체인 M사의 공정을 조사하고 현재 M사의 일정계획 순서와 기존에 연구되었던 일정계획 방법에 대한 결과를 조사한 후 CLV 알고리즘을 적용한 일정계획 기법을 시뮬레이션을 통해 비교 분석하고 알고리즘에 대한 타당성을 검증하고자 한다. CLV 알고리즘을 통한 고객 분류에 의해서 ATP rule을 적용한다면 생산 공정상의 일정계획이 조정되어 고객이 원하는 납기 준수를 달성할 수 있을 것이다. 또한 기존 연구와의 비교 분석을 위하여 시뮬레이션의 수행은 기존 연구 수행일과 동일한 시간(2003년 11월12월)을 기준으로 수행하였다.