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김은찬,강국진,Kim, Eun-Chan,Gang, Guk-Jin 한국기계연구원 1984 기계연구원소보 Vol.12 No.-
A new kind of bulb called Stern-End-Bulb(SEB) for the improvement of the after part of fine hull forms was developed. The reduction of wave resistance and the improvement of the powering performance for the ship with SEB were shown by the ship model tests, At the same time, the characteristics of wave in the vicinity of the stern and the mechanism of the resistance reduction by SEB were investigated. By the systematical variation of the SEB size, the optimum size of SEB was obtained.
김은찬,양승일,Kim, Eun-Chan,Yang, Seung-Il 한국기계연구원 1987 기계연구원소보 Vol.17 No.-
Since the towing tank was operated from early 1979, the test and analysis methods have been established and applied for the performance prediction of ships. Especially the analysis programs for the resistance test ('EHP') and self-propulsion test ('DHP') based on the 1978 ITTC performance prediction method was modified as a name of 'PPTT' in order to include the form factor calculation, two-dimensional analysis method, the prediction on multi-screw ship and the organization of data filing system. Recently the program 'PPTT' was improved to cover the procedure of data fairing, the analysis of propeller-open-water test results carried out at low and high Reynolds numbers, etc. This paper describes the newly improved analysis program 'PTI'.
김은찬,강국진,Kim, Eun-Chan,Gang, Guk-Jin 한국기계연구원 1987 기계연구원소보 Vol.17 No.-
This report describes the study result of the hydrodynamics characteristics for the wake duct. Two wake ducts for the DWT 25,000 Product Carrier were designed and manufactured. The resistance and propulsion performance of the model with them was evaluated by model tests. The object of the present research for the wake duct is to establish the foundation of the design technique and the performance prediction ability of the one, and furthermore, to prepare the base of the development of new type energy saving device
클러터와 표적탐지실패 환경에서 방위각 다중센서를 이용한 S-D 할당 기법 기반의 표적 추적 알고리즘
김은찬(Eunchan Kim),박진태(Jintae Park),이새움(Saewoom Lee),김기선(Kiseon Kim),김기성(Gi-Sung Kim) 대한전자공학회 2010 대한전자공학회 학술대회 Vol.2010 No.6
In target motion analysis (TMA) based on bearings-only (BO), various approaches have been proposed to handle uncertain measurements under clutters. As a good method, S-D assignment is applied to TMA for filtering clutters as well as assigning measurements to targets. In this paper, we propose a novel tracking algorithm that every sensor maintains its state vector of bearings for a target, in order to prevent S-D assignment from deleting the state vector for the target when the target is not detected for a short time. Through simulations, we show the improvement over a conventional scheme under the failure in detecting a target.
On the Characteristics of Form Factors (Series 60, C<SUB>B</SUB>=0.60)
Hun Chol Kim(김훈철),Seung II Yang(양승일),Eun Chan Kim(김은찬),Kuk Jin Kang(강국진),Suakho Van(반석호),Young-Gill Lee(이영길),Yoon-Ho Kim(김윤호),Kwi-Joo Lee(이귀주),Young Ki Kwak(곽영기),Soon Won Joa(좌순원),Hyochul Kim(김효철),Wu 대한조선학회 1988 大韓造船學會誌 Vol.25 No.4