해상 탐지 영상에서의 비행체 표적 선정에 관한 연구

김기범,백인혜,권기정,Kim, Ki-Bum,Baek, In-Hye,Kwon, Ki-Jeong 한국군사과학기술학회 2017 한국군사과학기술학회지 Vol.20 No.5

We deal with the target selection in seeker-detection image through network, using the detection information from aerial vehicle and the target information from surveillance and reconnaissance system. Especially, we constrain the sea battle environment, where it is difficult to perform scene-matching rather than land. In this paper, we suggest the target selection algorithm based on the confidence estimation with respect to distance and size. In detail, we propose the generation method of reference point for distance evaluation, and we investigate the effect of pixel margin and target course for size evaluation. Finally, the proposed algorithm is simulated and analyzed through several scenarios.

전자현미경을 이용한 전자재료분석

김기범,Kim, Ki-Bum 한국현미경학회 1994 Applied microscopy Vol.24 No.4

The application of TEM in investigating the evolution of microstructure during solid phase crystallization of the amorphous Si, $Si_{1-x}Ge_x,\;and\;Si_{1-x}Ge_x/Si$ films deposited on $SiO_2$ substrate, in identifying the failure mechanism of the TiN barrier layer in the Cu-metallization scheme, and in comparing the microstructure of the as-deposited Cu-Cr and Cu-Ti alloy films are discussed. First, it is identified that the evolution of microstructure in Si and $Si_{1-x}Ge_x$ alloy films strongly depends on the concentration of Ge in the film. Second, the failure mechanism of the TiN diffusion barrier in the Cu-metallization is the migration of the Cu into the Si substrate, which results in the formation of a dislocation along the Si {111} plane and precipitates (presumably $Cu_{3}Si$) around the dislocation. Finally, the microstructure of the as-deposited Cu-Cr and Cu-Ti alloy films is also quite different in these two cases. From these several cases, we demonstrate that the information which we obtained using TEM is critical in understanding the behavior of materials.

분산제조환경에서 VMI 기반의 원자재 통합관리 기법에 관한 연구

김기범(Ki Bum Kim) 한국산학기술학회 2022 한국산학기술학회논문지 Vol.23 No.4

본 연구는 원자재를 생산하는 모기업과 모기업으로부터 완제품의 주문과 함께 원자재를 할당받아 완제품을 생산하는 다수의 협력기업, 모기업과 협력기업 간의 물류분배를 담당하는 중앙 물류센터로 구성된 분산제조환경에서 VMI(Vendor Managed Inventory) 기법을 활용한 원자재 재고의 통합관리 기법에 대해 다룬다. 전통적인 재고관리 기법에서 협력기업은 완제품 생산에 필요한 원자재의 소요량을 산출하여 모기업에 주문하고, 이를 통해 공급받은 원자재로 완제품을 생산한다. 이때 완제품 생산에 필요한 원자재를 보유하고 있지 않을 경우, 협력기업이 보유하고 있는 원자재 재고에 비해 완제품 납기준수율의 낮아지는 현상이 빈번하게 발생한다. 본 연구에서 제안한 VMI기반의 원자재 재고통합관리 모델에서는 협력기업의 생산능력을 기반으로 보유해야 하는 최적의 원자재 재고수준을 설정한다. 그리고 완제품 생산에 따른 원자재 재고의 변동에 대한 정보를 모기업과 공유하여 원자재를 자동으로 보충해 준다. 모기업에서 완제품 생산에 필요한 원자재를 통합 관리하기 때문에 원자재 재고관리의 효율성뿐만 아니라 완제품 생산의 효과성을 높일 수 있다. 본 연구에서 제안한 원자재 재고 통합관리 기법을 통해 각 협력기업에서 보유하고 있는 재고수준을 39.4% 줄이면서 동시에 완제품 납기준수율을 14.5% 향상시킬 수 있음을 시뮬레이션 실험을 통해 검증하였다. In this study, we consider a manufacturing environment consisting of a parent company that produces raw materials, partner companies that produce finished products by ordering raw materials from the parent company, and a logistics center responsible for raw material distribution and devised a model for the integrated control of raw material inventory using VMI (Vendor Managed Inventory). For traditional inventory control, a partner company calculates its raw material requirements and orders them from the parent company. On the other hand, for VMI-based integrated inventory control, optimal raw material inventory levels for partner companies are set based on production capacity, and raw material requirements are shared with the parent company so that optimal amounts of raw materials can be maintained. As a result, inventory control and production efficiencies are improved because the parent company that allocates orders for finished products manages the raw materials required for production. Simulation experiments verified that the inventory level of each partner company could be reduced by about 40% and that on-time delivery rates could be improved by about 15% using the proposed model.

조건부 가치평가법과 관 파손 예측을 통한 노후수도관 개량의 경제성 평가

김기범 ( Ki Bum Kim ),김민화 ( Min Hwa Kim ),구자용 ( Ja Yong Koo ) 한국물환경학회(구 한국수질보전학회) 2014 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2014 No.-

하천과 물을 주제로 하는 박물관에 관한 기초적 연구 - 일반시민 대상 설문조사 통계분석에 기초하여 -

김기범 ( Kim Ki-bum ) 대한전시디자인학회 2021 전시디자인연구 Vol.18 No.2

본 연구는 우리 국민의 하천과 물에 대한 의식과 하천을 주제로 하는 박물관에 대한 의식을 파악하여 하천·물을 주제로 하는 박물관의 기본방향을 검토한 것이다. 일반 국민을 대상으로 설문조사를 실시하고, 이를 통계적으로 분석, 고찰하여 차후 하천·물을 주제로 하는 박물관의 기본방향 도출, 박물관의 콘텐츠 구성 등 박물관 계획에 필요한 기초적 자료로서 활용하고자 한다. 분석을 통해, 하천·물에 대한 관심, 교육·학습의 필요성, 관련 박물관의 필요성, 박물관 방문 의사가 매우 높게 나타났다. 또한 이용형태, 이용목적, 박물관 콘텐츠 및 세부 콘텐츠별 중요도, 교육적 가치 선호도 등을 종합적으로 고찰하여, 하천·물을 주제로 하는 새로운 박물관에서는 ‘멀티타겟팅 전략’, ‘미래지향적 콘텐츠 마련’, ‘평생교육의 장으로서의 방안 마련’이 중요하다는 것을 알 수 있었다. This study examined the basic direction of museums with the theme of rivers and water by grasping Korean citizen’s awareness on rivers and water and the museums with the theme of rivers and water. We will conduct a survey for the general public, analyze the survey results statistically, and use the results as basic data necessary for museum planning, such as deriving the basic direction of a museum with the theme of rivers and water and organizing the museum contents. Through the analysis, it was found that interest in rivers and water, the need for education and learning, the need for related museums, and the intention to visit the museum were very high in the general public. In addition, by comprehensively examining the type of use, importance of each museum content and detailed content, and preference for educational value, it was foundthat ‘multi-targeting strategy’, ‘future-oriented content preparation’, and ‘preparation of the space for lifelong education’ are important in new museums with the theme of rivers and water.

스털링 엔진을 이용한 태양열 발전 시스템 개발 연구 동향

김기범 ( Ki Bum Kim ) 충북대학교 산업과학기술연구소 2015 산업과학기술연구 논문집 Vol.29 No.1

A high percentage of the total electricity production relying on thermal power plants has caused critical issues regarding environmental pollution and depletion of fossil fuels. As a result, numerous researches are being conducted to reduce the dependancy on fossil-based energy and utilize greener energy such as solar and wind. Solar energy utilization can be categorized in two folds. One is photovoltaic power generation that needs to be more cost-effective although it is considered a promising technology in the future. The other is solar power generation currently employed in some areas near in the equator using heliostat or solar troughs. In addition, some researching groups have developed a solar power generation system consisting of a dish type solar receiver with stirling engine. Those system requires large space; thereby, not suitable in Korea. In this study, preliminary experiments were carried out to develop a solar power generation system using a small-sized stirling engine that could produce electricity of 46 mW. The better design of the system is expected to improve the system efficiency and the experimental data obtained in this study will be used for other various applications.

고정자 권선 턴 단락에 따른 농형 유도전동기 전류 위상 변화에 대한 고찰

김기범(Ki-Bum Kim),정태욱(Tea-Uk Jung),윤영우(Young-woo Youn),황돈하(Don-Ha Hwang) 대한전기학회 2014 대한전기학회 학술대회 논문집 Vol.2014 No.7

중국어 기초회화교재와 新HSK3·4급 시험과의 연계성 및 교재 편성 방안 연구

김기범(Kim, Ki Bum) 한국중국어교육학회 2019 중국어교육과연구 Vol.0 No.29

The second volume of Chinese textbooks has been analyzed and linked to the new HSK3·4 grade tests. The connectivity between the second volume of the three series textbooks and the new HSK3 was investigated in three areas: First, 68% of the total grammar points can be obtained by learning the second volume of the series. Second, the combined ratio of the new words in the second volume and the required words in the class of new HSK3 is 14 percent and the combined rate with the first volume is 10 percent. Therefore, if you learn the second volume, you can only acquire about 24 percent. Third, the association between the subject matter of new HSK3 and the subject matter of text of the textbook is 45 percent and the combined rate with the first volume 27percent. Therefore, while learning the second volume shows a 72 percent correlation, it shows limitations in responding to the issue of the new HSK3 class, which deals with matters other than daily life. The connectivity between the second volume of the three series textbooks and the new HSK4 was investigated in three areas: First, the grammar point agreement is similar, so even if you learn the second volume of the series, you can prepare for new HSK4 in terms of grammar. Second, the combined rate of the new words in the second volume and the required words in the class of new HSK4 is 12% and the combined rate with the first volume is 4%. Therefore, it is difficult to prepare for the class of new HSK4 since only 16% can be learned if the second volume is learned. Third, the association between new HSK4-class subject matter and textbook subject is 27% and the combined rate with the first volume is 17%. Therefore, it is difficult to learn to prepare for new HSK4 by learning the second volume, considering the nature of the fourth level problem with many conceptual explanations. In conclusion, if you learn the second volume of the series, you can prepare for the grammar of new HSK3·4. On the other hand, the relationship between the number of words and the subject matter is very low, it is no longer easy for learners who need a new HSK rating to acquire knowledge related to new HSK 3·4. In addition, you need to learn text specialized in new HSK.

Zigbex를 이용한 미아 위치 추적 시스템에서의 위치정보 서비스

김기범(Ki-Bum Kim),이진우(Jin-Woo Lee),최창열(Chang-Yeol Choi) 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.2

미아를 포함한 어린이들의 안전사고 예방과 해결책에 IT기술이 적용되고 있다. 본 논문에서는 ZigbeX를 이용한 미아 위치 추적 시스템을 구성하는데 필요한 위치정보 서비스에 대해 기술한다. 통신 노드로부터 수집된 위치정보들은 서버프로그램, 데이터베이스와 일관되게 연동되고 편리한 웹 인터페이스로 제공된다.

갑상선 전절제술 81예에 대한 임상적 고찰

김기범(Ki Bum Kim),서영진(Young Jin Suh),안관홍(Gwan Hong Ahn),천성원(Sung Won Chun),조원일(Won Il Cho),김승남(Seung Nam Kim),이재학(Jae Hak Lee) 대한외과학회 1997 Annals of Surgical Treatment and Research(ASRT) Vol.52 No.1