세미나 - 레토르트 패키지 디자인 연구 - 삼계탕과 육개장을 중심으로 -

이경수,Lee, Gyeong-Su (사)한국포장협회 2016 包裝界 Vol.273 No.-

본 원고는 한국상품문화디자인학회 제40호 논문에 게재된 내용으로, 학회와 이경수 대표의 동의 아래 게재함을 밝힌다.

이경수 소장의 희망칼럼 - 핵융합, 녹색성장의 해답

이경수,Lee, Gyeong-Su 국가핵융합연구소 2009 핵융합뉴스레터 Vol.41 No.-

세계적으로 부는 녹색 붐. 선진국들은 기후변화 대응과 경기회복을 동시에 꾀하기 위한 다양한 그린정책을 내놓고 있고 우리 정부도 저탄소 녹색성장이라는 타이틀로 참여하고 있다. 정부가 핵융합기술을 녹색기술에 포함시킨 현 상황에서 국가핵융합연구소가 해야 할 일은 무엇인지 이경수 소장의 이야기를 들어보았다.

세미나 - 유니버설 디자인 적용을 위한 생활용품 패키지디자인 연구 - 샴푸, 바디워시를 중심으로 -

이경수,Lee, Gyeong-Su (사)한국포장협회 2015 包裝界 Vol.271 No.-

본 원고는 한국상품문화디자인학회 제41호 논문에 게재된 내용으로, 학회와 이경수 대표의 동의 아래 게재함을 밝힌다.

미사일-타깃해석법에 의한 콘크리트돔의 항공기 충돌해석에 관한 연구

이경수,하크 지아올,한상을 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.6

In this paper, the authors performed the missile-target interaction analysis for B747 airplane against prestressed concrete dome structure. The aircraft model was developed and verified from the previous researches that were done by the authors. Therefore, the FE aircraft model can be used for the aircraft impact loading case. The development of aircraft FE model is theoretically based on the Riera function which was proposed by Riera derived from the rigid wall impact hypothesis. When the aircraft impact to the freeform or circular section shaped structure, the resulting impact force and it's integral impulse force may be different from the theoretical values. In this paper, the authors developed the artificial prestress concrete dome structure which has circular section shape and usually using for the nuclear power plant containment building structure. And the aircraft impact analyses were performed using missile-target interaction method. The commercial Hydrocode AUTODYN was used for FE modelling and simulations. From the comprehensive numerical studies, the shape of target structure significantly affects the aircraft impact load and decreases it compared to the Riera function and rigid wall impact simulation.

Bleomycin 국소주사에 대한 Guinea pig 피부의 반응에 관한 연구

이경수,깁중환 대한피부과학회 1979 大韓皮膚科學會誌 Vol.17 No.5

Bleoxycin is known to have good therapeutic effect on verrucae, which has been used for varioua malignant turnors for its antimitatic effect RecentIy Kim & Kim, reported an exceIIent treatment method. of verrucae with Bleomycin using needle free dermojet. They poetulated that the excellent effcts were achievei thraugh infiltration of the ekin, in.cluding the affected epidermis, with Bleomycin which is not possible with other rnethods, It is therefore interesting to know the effects of Dermajet instilled Bleomycin an normal ekin. We selected guinea pigs for thia experirnent. Five albino guixim pigs, weighting about 500 Gm, were ueed. Bleomycin water ohxtion, 0.25mg/ml, 0.06ml for each chet was injected utilizing Dermojet on the back of a guinea pig after clipping. The injected sites and the contralateral sites were tiopsied a,fter vaxying length of time and histologia examinationa were made. The experiment was eoarranged that the biopsies for different experiment aitea celd be done on oxeittirnig. Six hours after the bleomycin injection, the epidermis becase shrunk and t@4e upper dermie showed aligbt inflammatory infiltration. After 10 hours. and also after 24 hours, a superficial ulceration and necrosis were noted and the dermal infiltration became progressively severer. After 2 days epithelization, had started and. the necrotic debris began to drop off. After 4 daya the epithelization was camplete. These findings were in sorne part similar to the findings observed in humans by Kirn and Kim in the treatment af verruca but th time sequenc was far faster in guinea pigs.

펠레르보 연합 116년 역사, 핀란드 협동조합의 도전과 혁신

이경수 한국농촌경제연구원 2015 세계농업 Vol.183 No.-

풍력터빈 전산유체역학해석에서 비균일 그리드 무차원 연직거리의 난류모델에 대한 영향특성

이경수,하크 지아올,한상을 한국공간구조학회 2015 한국공간구조학회지 Vol.15 No.1

This paper presents the dimensionless wall distance, y+ effect on SST turbulent model for wind turbine blade. TheNational Renewable Energy Laboratory (NREL) Phase VI wind turbine was used for the study, which the wind tunnel andstructural test data has publicly available. The near wall treatment and turbulent characteristics have important role forproper CFD simulation. Most of the CFD development in this area is focused on advanced turbulence model closuresincluding second moment closure models, and so called Low-Reynolds (low-Re) number and two-layer turbulence models. However, in many cases CFD aerodynamic predictions based on these standard models still show a large degree ofuncertainty, which can be attributed to the use of the  -equation as the turbulence scale equation and the associated limitations of the near wall treatment. The present paper demonstrates the y+ definition effect on SST (Shear Stress Transport) turbulent model with advanced automatic near wall treatment model and Gamma theta transitional model for transition from lamina to turbulent flow using commercial ANSYS-CFX. In all cases the SST model shows to be superior, as it gives more accurate predictions and is less sensitive to grid variations.

Manufacturing System Optimization for Small Quantity Batch Production

이경수,홍정의 한국산업경영시스템학회 2018 한국산업경영시스템학회 학술대회 Vol.2018 No.춘계

A사는 발전 플랜트, 오수처리장, 취수, 정수, 배수장, Oil Plant 등 국가 기간 산업현장에서 사용되는 전동 액추에이터를 제조하고 있다. A사가 각 수요처별로 각기 다른 기능을 필요로 하는 Order에 대응하여 제품을 생산하고자 기존의 A사가 적용하고 있는 생산방식인 라인로트생산방식이 가지고 있는 문제점을 파악하여 개선하고자 한다. 본 연구를 통해 시장과 고객의 요구에 유연하게 대응할 수 있도록 다품종 소량생산에 적합한 셀 생산방식으로 변경을 통하여 생산유연화와 생산성향상을 이룰 수 있었다. 이러한 개선을 통하여 다변화하는 고객의 요구에 실시간으로 대응 할 수 있음은 물론이고 생산성향상과 그에 따른 이익창출을 이뤄낼 수 있는 계기가 될 것이다. 또한 A사의 생산 작업자의 업무 능력배양에 긍정적으로 작용하여 일을 하는 재미와 이에 따른 보상의 기대치를 높일 수 있는 계기로 작용하였다. In order to produce products in response to the orders that require different functions for each customer, Company A seeks to identify and improve the problems of the line-lot production method, which is the production method adopted by the existing company A. Through this study, it was possible to improve production flexibility and productivity by changing to cell production method suitable for small quantity production of various kinds so as to flexibly respond to market and customer 's demands. Through these improvements, we will be able to respond to diversified customer needs in real time as well as improve productivity and profit generation. In addition, it acted positively to cultivate the work capacity of the production worker of company A, which served as an opportunity to increase the expectation of the fun of work and the compensation accordingly.

부산 소재 대학병원 이용고객의 의료기관 충성도에 영향을 미치는 요인

이경수,김준호,김대희 한국보건사회학회 2011 보건과 사회과학 Vol.0 No.29

The medical industry significantly affected by structural factors, such as diversification of the medical demand and the quantitative increase of medical institutions is demanding changes in medical institution management. This study in terms of on large hospitals located in Busan and analyses using medical institutions and the patients' hospital selecting factors. It was made to see association between customer loyalty and cost-benefit satisfaction and subjective recognition perceived by patients analyze what factors of patients selectingmedical institutions significantly affected. Structured questionnaires were used to randomly sample customers visiting hospitals concerned during the period of the research; excepting copies with non-responses and missing data, 698 were collected. Reliability analysis and factor analysis were carried out to test for reliability and validity of items, along with structural equation modeling analysis to see causal relations between variables and t-test and ANOVA to see differences in 10 variables by respondents' statistical characteristics. Path analysis between factors affecting customer loyalty, satisfaction with doctors, external recognition, medical administrative service, and medical service were found to directly affect customer loyalty not through mediating factors among 7 independent variables affecting customer loyalty. In contract, geographical access and satisfaction with the staff affected customer loyalty through patients' internal recognition, and geographical access, physical environment, and satisfaction with the staff affected customer loyalty through the mediating factor of cost-benefit satisfaction. Among mediating factors, cost-benefit satisfaction had negative effects directly on customer loyalty but had positive effects indirectly on it through internal recognition at 0.117 (0.294×0.399). Patients' internal recognition of medical institutions (.399) and satisfaction with doctors (.315) had more significant effects on customer loyalty than other factors directly affecting customer loyalty; satisfaction with doctors ((.265×.399)+.315=.420) was the factor with the highest level of total effects including both direct and indirect effects. This study investigated four university hospitals in Busan, followed by empirical analysis, and is significant in that it identified customer orientation factors for selecting hospitals among local residents and researched their preference for each hospital; on this ground, making hospital management efficient and establishing hospital marketing policies will increase chances for patients to choose hospitals in Busan. 의료수요의 다양화, 의료기관의 양적 증대와 같은 구조적인 요인에 크게 영향을 받는 의료산업은 의료기관 경영에 있어 변화를 요구하고 있다. 본 연구에서는 부산지역 대학병원을 중심으로 의료기관을 이용하는 환자의 병원 선택요인이 환자들이 지각하는 주관적 인지도와 비용효과 만족도가 고객충성도에 미치는 관계를 검증하고, 환자의 의료기관 선택요인 중 어떠한 요인이 큰 영향을 미치는지를 분석해 보았다. 구조화된 설문지를 이용하여 조사대상 병원 외래환자를 대상으로 조사 기간 중 내원하는 고객을 임의 추출하여 무응답과 기재사항이 누락된 설문지를 제외한 698명의 자료를 수집하였다. 측정문항의 신뢰도와 타당도를 검정하기 위하여 신뢰성 분석과 요인 분석을 실시하였고, 각 변수간의 인과관계를 확인하기 위하여 구조방정식 모형분석을 실시하였으며 그리고 조사대상자의 통계학적 특성에 따른 10개의 변수에 대하여 차이를 알아보기 위하여 t-test 와 ANOVA를 실시하였다. 고객충성도에 영향을 미치는 요인들 간의 경로를 분석한 결과, 고객 충성도에 영향을 미치는 7가지의 독립변수들 중 의사만족도, 외적인지도, 의료행정서비스 그리고 의료서비스는 매개요인을 거치지 않고 직접적으로도 고객의 충성도에 영향을 미치고 있었다. 반면, 지리적 접근성, 직원만족도 등은 환자의 내적 인지도를 통해서 고객 충성도에 영향을 미치고 있었으며, 지리적 접근성, 물리적 환경, 직원만족도 등은 비용효과만족이라는 매개요인을 통해서 고객 충성도에 영향을 미치고 있었다. 매개요인들 간 있어서도 고객충성도에 있어 비용효과만족은 직접적인 영향을 미칠 경우 부(-)의 영향을 미쳤으나, 내적인지도를 통한 간접적 영향의 경우에는0.117(0.294×0.399)으로 정(+)의 영향을 미치고 있었다. 또한 직접효과 및 간접효과를 모두 포함한 총 효과가 가장 높은 요인은 의사만족도((.265×.399)+.315=.420)였다. 본 연구는 부산지역 4개 대학병원을 조사하여 실증분석을 하였으며, 아울러 지역 주민들의 병원선택요인에 대한 고객지향요인을 파악하고 지역주민들의 병원별 선호도를 조사 연구 하였다는데 의의가 있으며 이를 바탕으로 향후 병원경영 효율화와 고객중심의 병원 마케팅 정책을 함께 수립한다면 환자들이 부산지역 병원을 선택하는 기회는 더욱 증가 할 것으로 본다.

Shigella flexneri phage에 關한 硏究 : 第1報 : Phage의 一般性質 1. General properties of phage

李敬洙 中央醫學社 1967 中央醫學 Vol.12 No.2

The author has investigated the properties of a phage of which host cell is shigella flexneri la and obtained the following results. The phage EOP appeared on the various bacilli of shigella flexneri group is resemble to that appeared on the host bacteria and the EOP appeared on the other higella strains except flexneri group is lower grade than that appeared on host cell. And also, in some dysentery bacilli except flexneri group, the phage can not completely multiply. On the spot test in other bacteria except dysentery bacilli, only one strain of E. coli is positive and the other enteric bacilli and cholera vibrio are all negative. The phage EOP appeared on the various shigella strains except flexneri group is different grade respectively according to each strain. The phage plaques produced in the bacteria of shigella flexneri group are almost same appearance as that produced in the host bacteria and the plaques appeared in other dysentery baiclli except flexneri group, especially in the bacteria of shigella boybii group, are smaller than that produced in host bacteria and, in some cases, the plaques are also not clear. The adsorption velocity of phage to the various bacilli of shigella flexneri group is almost similar to that to the host bacteria and the phage adsorption, however, to the other shigella strains except flexneri group is very slower than that to host cell. The adsorption of phage to host bacteria is excellent at 37°C and the adsorption velocity become slower according to decreasing of temperature. In normal conditions, the latent period, brust size and complete phage liberating time of the phage is 28 minutes, about 50 and 34 minutes respectively. In the bacteria of shigella flexneri group, these characters are almost samely appeared but, in the other shigella strains except flexneri group, the latent period, burst size and complete phage liberating time become considerably retarded or lowered than that in host bacteria. The phage change to host range mutant according to passing through the bacteria of which antigenic properties are different from the host cell. The velocity constant of phage neutralization of the antiserum is about 128 min.-1 in normal condition and about 50% of phage is inactivated by keeping of the phage at 50°C for 80 minutes. The appearances of phage inactivation by anti-phage serum and heat are evenly the first order kinetics. The phage is relatively stable at pH 6.0~9.0 and about 60% of phage is inactivated by the sonic vibration for 2 minutes. And the phages inactivated by ultraviolet ray produce the photoreactivation but not the multiplicity reactivation.