유압식 방진기 성능향상을 위한 실험계획법 도출

이호열(Ho Ryeol Lee),송기오(Ki O Song),이재민(Jae Min Lee),하승우(Seung Woo Ha) 대한기계학회 2019 대한기계학회 춘추학술대회 Vol.2019 No.2

200km/h 급 Train-tram 시스템의 연구동향

이호용(Ho-yong Lee),최기석(Ki seok Choi),권석진(Seok jin Gwon),이준성(Jun seong Lee) 한국철도학회 2014 한국철도학회 학술발표대회논문집 Vol.2014 No.5

국내 철도분야 SOC 투입은 거점도 시간 이동을 위해 집중되어 왔으며, 상대적으로 중·소도시 및 수도권 인근 도시간 이동을 위한 교통인프라 투자가 상대적으로 이루어지지 않고 있어 도시간 이동을 위한 시간적, 비용적 문제가 대두되었다. 중·소도시간 이동수단이 열악함에 따라 경제, 문화 생활공간이 단절되어 있어 도시발전에 장애가 되고 있으므로, 원활한 교통수단을 제공함으로써 지역경제를 활성화할 필요가 있다. 따라서 도시와 도시를 연결하고 번거롭게 갈아타는 불편함을 없애고 도심 내에서 타 도심 내로 바로 접근이 가능한 대중교통 시스템의 개발을 통해 이역간 이동을 쉽게 할 필요가 있다. 또한 일반 철도와 기존 차량의 시스템과의 간섭을 없애기 위해서는 국외 시스템의 기술적 한계(100km/h)를 뛰어 넘는 한국형 Train-tram기술(200km/h급이상) 개발을 위한 시스템 설계 및 이를 달성하기 위한 핵심기술의 개발이 필요하다. 따라서 본 논문에서는 200km/h급 Train-tram 시스템의 성공적인 국내적용을 위해 해외 사례 및 앞으로 연구동향에 대해 조사·분석하였다. SOC Insertion of domestic railway field has been concentrated for time shift between urban cities, and since the transportation infra investment for small, middle cities and adjacent capital area movement is not relatively consisted, temporal and spatial problems of migration between cities has arisen. Since means of transportation among middle and small towns are poor, economy, culture and living spaces are separated, which causes obstacles of city development. Therefore, we need to facilitate local economy by offering proper and means of transportation. Thus, it is needed that eliminating the inconvenience of transferring stations by connecting cities and developing a possible and adjacent public transportation system for providing easy access from inner cities to outer cities to the public. In addition, in order to remove the interference of system between general railways and pre-existing car, system plan to develop Korean Traintram technology (more than 200km/h class), which exceeds the technology limit(100km/h) of foreign system and development of core-technology to achieve above are needed. Therefore, this thesis researched and analyzed the examples of foreign countries and future trend of study for applying 200km/h class traintram system successfully into Korea system.

저심도 도시철도 차량시스템 핵심기술개발 방향

이호용(Ho-Yong Lee),이안호(An-Ho Lee),박기준(Ki-Jun. Park),조봉관(Bong-Kwan Cho) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.10

도시철도 차량시스템 개발 방향은 저비용 건설이 가능하도록 하기 위해 노선 설계시 도로와 동일한 노선으로 설계가 가능하고 터널 단면을 최소화 할 수 있어야 하고 이를 위해 최소곡선반경 주행성과 고속성을 만족시킬 수 있는 차량시스템이 개발되어야 한다. 저심도 차량시스템의 주요 핵심기술은 낮은 높이에서도 주행성능을 유지시키기 위하여 대차의 구조가 저상형에 적합하게 개발하고, 터널 단면에 맞도록 전장품 등이 슬림화될 수 있도록 개발되어야 한다. 아울러 전장품 및 각종 의장 기기들은 기존의 EMU 전동차 보다 Compact 한 형태로 개발되어야 한다. 또한 15m 에 이르는 최소 곡선반경 하에서 운행조건을 만족하기 위한 차체 Articulation 등이 핵심적인 기술로 요약될 수 있다. 표준 모듈화 차량시스템개발로 중복투자 방지 및 지자체 승객 수요에 대응하기 위한 저심도 표준차량 모델을 개발할 필요가 있다. Same roads and routes into the route design, design and development direction of urban rail vehicle systems to enable low-cost construction tunnel section should be designed to minimize. Minimum radius of curvature can satisfy the properties of high runnability and vehicle systems should be developed. Near surface vehicle systems, the key technologies of low height in driving performance should be maintained. To fit in the tunnel cross-section and the balance of the structure is developed for the low-floor, slimmer electronics, etc. so that it can be developed should be. To 15m under the minimum curve radius can be summarized as the core technology to satisfy the conditions of service for the Body Articulation. There is a need to develop a standard modularized vehicle system development as a redundant investment in prevention and local governments respond to passenger demand for low depth of a standard vehicle model.

내부브랜딩 활동이 브랜드몰입과 고객지향성에 미치는 영향 연구: 국내 금융서비스 기업을 중심으로

이호기 ( Ho Ki Lee ),송균석 ( Kyun Seok Song ),범상규 ( Sang Kyu Beom ) 한국생산성학회 2014 生産性論集 Vol.28 No.2

Internal branding has risen as new task which is a vital question of the company recently by recognizing full integration with the branding through all divisions and its operations for their continuous growth and profit. In relation to this, to build the strong brand positioning (in terms of customer royalty, market share and price premium) and to secure competitive advantages, it can be achieved to communicate brand promise to customers and other stake holders by the employees who have high brand commitment and customer orientation. This study is to verify the causal relation and its influences between the three major components of internal branding activity, which are brand based HR activity, internal brand communication, brand based leadership, and brand commitment and customer orientation for the organizational members in the domestic financial service companies(banks and the credit card companies) based on the conceptual model for the internal brand management. Looking into the result of empirical analysis in the study, it shows that internal branding activities of the financial service companies affect the brand commitment of the employee positively, organizational member`s higher brand commitment increases customer orientation. The influence of customer orientation by internal branding activities is intermediated by the degree of the brand commitment. But the degree of influence for the customer orientation increased by the organizational members`s brand commitment is not different from the types of business between banks and credit companies. This study contributes that internal branding activities of the financial service companies affect the increase of the brand commitment positively for the organizational members. It has been confirmed that internal brand communication, one of three components of internal branding activities suggested in this study affects the most. Secondly, in terms of the basic infrastructure for the internal branding in the financial service companies, there is strong need of formulation for the brand mission and role of the employee and need of complement for the evaluation and compensation system for accomplishing the brand value. Thirdly, to realize high customer orientation by strong brand commitment through the employee in the financial service companies, it needs a large set of tools from different functions in the firm, for example, HR, internal communication, leadership, as well as contextual factors such as corporate culture and structure fit, incentives structure. further the more, requires long term commitment and continuous, institutionalized efforts.

고성 소가야 유물전시관 - 공주대학교(누마루) + 우림 C&C + 시공테크 + 건축사사무소 옛터

이호정(Lee, Ho-jung),장기호(Chang, Ki-ho),박기석(Park, Ki-seok),이원길(Lee, Won-kil) 현대건축사 2007 월간 CONCEPT Vol.- No.99

돼지 설사병의 경구 백신화를 위한 미세유체 공압 기반의 칼슘 알지네이트 비드 생성

이호원(Ho Won Lee),김다솜(Da Som Kim),권혁기(Hyeok Ki Kwon),이종현(Jong Hyun Lee),박가영(Ga Young Park),안지영(Ji Young Ahn),정옥관(Ok Chan Jeong) 대한전기학회 2017 대한전기학회 학술대회 논문집 Vol.2017 No.10

마이크로에멀젼형 준수계 세정제의 배합조건 변화에 따른 물리적 특성 및 세정성능 영향

이호열 ( Ho Yeoul Lee ),한지원 ( Ji Won Han ),이명진 ( Myung Jin Lee ),박병덕 ( Byeong Deog Park ),한상원 ( Sang Won Han ),이동기 ( Dong Ki Lee ),박선우 ( Sun Woo Park ),황인국 ( In Gook Hwang ),배재흠 ( Jae Heum Bae ) 한국공업화학회 2003 공업화학 Vol.14 No.2

본 연구에서는 유기용매의 종류 및 함량, 계면활성제의 종류 및 함량, 보조계면활성제/계면활성제(cosurfactant/surfactant, A/S) 비율 등의 변수에 따라 배합된 마이크로에멀젼형의 준수게 세정제들의 물리적 특성과 플럭스에 대한 용해력을 측정하였다. 또한, 세정공정 중에 사용되는 헹굼액의 유수분리성을 측정하여 헹굼액의 재활용성을 평가하였다. 배합된 세정제들은 water-in-oil (W/O) 형태의 마이크로에멀젼을 형성하였으며, 30.2~32.5 dyne/cm의 낮은 표면장력과 낮은 점도 값을 보여 세정공정에서 침투력이 좋을 것으로 예상되었다. 플럭스에 대한 용해력은 계면활성제의 소수성이 증가할수록 높게 나타났으며 terpene을 함유란 세정제들이 hydrocarbon 형태의 세정제와 대응품(CPA, CPB)에 비해 우수한 용해력을 보였다. 그리고, 배합된 세정제들을 함유한 헹굼액은 우수한 유수분리성을 보여 헹굼액의 재활용이 가능하여 경제적인 부담과 수질오염을 줄일 수 있음을 보여주었다. In this study, two kinds of microemulsion-type semi-aqueous cleaning agents that consisted of organic solvent, surfactant, cosurfactant, and water were formulated by changing formulation parameters such as organic solvent type and contents, surfactant type and contents, and cosurfactant/surfactant(A/S) ratio. Physical properties and flux removal of the formulated cleaning agents have also been evaluated. The performance of oil-water separation from the rinse water contaminated during the cleaning process was evaluated for its recycling. The formulated cleaning agents in this work were found to form water-in-oil (W/O) type microemulsion and they were expected to have good penetration because of their low viscosity and low surface tension of 30.2~32.5 dyne/cm. The flux removal with the terpene type cleaning agent was higher than those of hydrocarbon type cleaning agent and two commercial products (CPA, CPB), and the solubility increased with hydrophobicity of the nonionic surfactant. The performance of oil-water separation from the rinse water containing formulated cleaning agent and soils was found to be very good. Therefore, the cleaning agents formulated in this work seemed to have good cleaning efficiency to have economical advantage and water pollution reduction by recycling the rinse water.

저심도 독립차륜형 조향대차 동특성 해석연구

이호용(Ho-Yong Lee),이안호(AnHo Lee),박기준(Gi Jun Park),조봉관(Bong Gwan Jo),최기석(Ki Seok Choi) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.5

저심도용 독립 차륜형 대차를 개발하기 위하여 반 능동조향(semi-active suspension)이 탑재된 대차 모델링을 바탕으로 기구학 해석을 수행하며, 고속에서의 대차 강성설계, 주행 안정성 평가를 위한 동특성 해석에 따른 주행안전성 확보 연구를 수행한다. 최종적으로 반 능동 조향대차의 승차감, 주행안정성 등을 최적화하기 위한 설계변수를 선정하고, 최적화 결과를 반영한 저상대차의 최적 모델링 및 기본 구조 설계를 제시하는 것을 목표로 한다. In order to develop independent-wheel type for near-surface, the theory performs the interpretation of mechanism theory based on the bogie modeling loading with semi-active suspension steering. In addition, it carries out bogie stiffness design at high speed, interpretation of dynamic characteristics for driving stabilization evaluation and research for securing driving stabilization according to active characteristic Ultimately, the goals of thesis are to select a design parameter in order to optimize ride comfort of trains with semi-active suspension, running stability and to suggest a basic structure design and optimum modelization of high velocity near-floor bogie reflecting optimized results.

바이모달 트램의 중련주행을 위한 다물체 동특성 해석

이호용(Ho Yong Lee),최기석(Ki Seok Choi),목재균(Jae Gyun mok),문경호(Gyeong Ho Moon),이준성(Jun Seong Lee) 한국철도학회 2014 한국철도학회 학술발표대회논문집 Vol.2014 No.10

바이모달(Bi-Modal) 트램은 철도의 정시성과 버스의 유연성을 결합한 신 교통수단이며 경전철과 버스의 중간규모 이용자 밀도를 갖는 특성을 가지고 있다. 그러나 바이모달 트램 편성의 한계로 수송수요가 많은 도시의 경우, 수송능력 부족으로 중소도시에서 외면을 받고 있다. 이러한 단점을 해결하고자 수송수요에 탄력적으로 대응 하고 수송량 증대를 위해 중련편성으로 설계하고자 한다. 본 연구에서는 바이모달 트램의 중련연결 시주행 특성 해석을 통해 설계 가능성을 확인 하고자 한다. Bi-Modal tram is a new kind of traffic means with flexibility of bus and punctuality security of train and has a characteristic of having density of middle-scale bus and light subway users. However, the limitation of Bi-Modal tram formation gets turned away by cities with lots of transportation demand because of the shortage of transportation ability. Therefore, in order to solve the disadvantage duplicate is mapped out to cope with the transportation needs flexibly, and to increase the volume of travel. In this study, the possibility of planning through the multibody dynamic analyses of traveling quality is going to be confirmed when duplicated of Bi-Modal.

태양전지급 폴리실리콘 성형체 제작을 위한 CIP법의 활용

이호문(Lee, Ho-Moon),신제식(Shin, Je-Sik),문병문(Moon, Byung-Moon),권기환(Kwon, Ki-Hwan),김기영(Kim, Ki-Young) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.06

In this study, it was aimed to develop the re-use technology of ultra-fine silicon powders, by-products during the current production process of high purity poly-Si feedstock. For this goal, the compacts of the silicon powders were tried to fabricate by CIP (Cold Isostatic Pressing) method using silicon rubber mold without chemical binder materials. The density ratio of the silicon powder compacts reached 74%. In order to simulate the actual handling and charging conditions of feedstock material in casting process, a shaking test was carried out and mass loss measured. Finally, the silicon powder compacts were melted using a cold crucible induction melting method and the purity assessment was conducted by Hall effect measurement.