포지인물과의 만남 - (주)산업공해연구소 이기채 대표이사

이기채,Lee, Gi-Chae 한국환경기술인연합회 2005 환경기술인 Vol.22 No.12

"기업은 수익률 향상을 위해 계속적인 투자를 해야 합니다." 최근 새 사옥을 마련하여 지속적인 투자를 아끼지 않는 (주)산업공해연구소 이기채 대표이사는 사업의 성공은 재투자에 있다고 강조한다. 소위 환경분야 1세대하고 일컬어지는 1960년대에 국내 환경을 위해 초석을 다진 이 대표는 당시의 상황을 소상히 소개한다. 그는 당시의 회상하며 우리의 환경리더들의 발자취를 일일이 열거했다. 본지는 지난달 16일 새사옥으로 이전한 (주)산업공해연구소 이기채 대표이사를 만나 그의 환경분야 외길 36년사를 들어봤다. 다음은 이 대표와의 인터뷰 내용이다.

FMS의 柔軟性(flexibility)尺度에 관한 硏究

李琪彩 培材大學校 1985 論文集 Vol.7 No.-

Flexible Manufacturing System(FMS) is a complex system which includes the combination of numerical control of operations, robot manipulators for loading and unloading. multi-purpose machines with automated tool loading, and automated material handling equipment to connect the various machines. Rapidly-changing demand in both design and volume made job-shop manufacturing system important. Job-shop or batch production systems are characterized by fast response to customer design and volume change, and high quality products. but are plagued by low productivity caused by frequent set-up and resulting high production cost, high in-process inventory, low machine utilization, and very little automation . Accordingly, productivity improvement in discrete part manufacturing system is one of the most important issues in production management. FMS have been designed and developed for that purpose. By combining the processing power of computer with manipulative power of automated control systems, FMS made it possible to produce small and mid-sized batch of several different part types with the efficiency of automated mass production and the responsiveness of job shop. For successful introduction and operation of FMS, various kind of decision making on number of machines, number of load and unload stations and buffer sizes etc, and performance evaluation for candidate set of decisions are needed. In order to evaluate performance, its measures are prerequisite. This paper reviewed the general outlook of generic models which find candidate . decisions, and the evaluative models which evaluate a given set of decisions. As the flexibility is considered as a basic characteristic of FMS among various performance measures and a most important factor for productivity improvement, this papers analyzed flexibility at various levels in detail and defined its measures using the framework developed by Morris A. Cohen et al and E. M. Dar-El et al. The framework considers manufacturing system as a family of module cutter (MC) which is again consisting of processing modules (PM). From the framework. we can get the processing assignment matrix X by analyzing operating characteristics of the modules. feasible routing matrix R by analyzing processing requirements for parts, and transport network matrix T by analyzing material banding system. Using these system specification matrices, this paper defined flexibility measures on routing, product, process and transport which can be evaluated by various descriptive models listed in chapter 2. Although this paper limited its range to mathematical formulation on flexibility measures only, the framework can be extended to include the analysis of other performance measures such as utilization, and cost and benefit by introducing cost matrix per unit time of processing modules and revisiong the system specification matrices slightly.

技術集約度와 尖端技術産業

李琪彩 培材大學校 1996 培材論叢 Vol.1 No.-

The aim of this paper is to provide useful methodology to define high technology industry which is keenly interesting issue to various people including industry policy maker, business management and regional inhabitants. They expect that high technology industry would contribute toward the alleviation of national and regional economic structural problems such as closing balance of payments deficit, promoting economic restructuring and providing employment opportunities without industrial pollution. Despite such keen interests, there is no generally accepted definition on high technology industry. When trying to summarize the nature of high technology industry, we are facing some confusions surrounding the term. As most existing definitions focus on only one aspect of technology, they offer a different list of industries termed high technology industry. Although Daniel Felsenstein and Raphael Bar-El tried to define high technology industry on the multidimensional points of view, their methodology is to simply integrate existing onedimensional definitions horizontally. This paper endeavoured to define high technology industry reflecting the complexity of technology itself. On the informational view, we defined technology as scientific knowledge which is used for human life. Such knowledge is abstract and can't be felt through five sensory organs, but is embodied in various concrete existences relating to industry and contributes to human life. We divided these technology factors into four categories. They are product technology mainly formed by R&D activities and embodied in product, process technology embodied in production facilities and equipments, labour technology mainly formed by education on or off school and embodied in human resources, and organization technology accumulated in organization itself through experiences. Using appropriate proxy variables for the four technological factors, we can measure the technological intensities of a given industry and assign dichotomous value respectively. Then the complete description of technological intensity of the industry will be one of sixteen possible combinations which represent technological profiles. This profiles will show the status of technological level of the industry in multidimensional respects and give useful informations to different people with differnet interests to high technology industry. However, this paper suggests only conceptual methodology without empirical study. To test the usefulness of the conception, empirical study is needed at industry or firm level.

多品種少量生産시스템에 대한 集團管理技法(Group Technology)의 費用函數 分析

李琪彩 培材大學校 1984 論文集 Vol.5 No.-

One of the most important problem which modern production management faces is to increase productivity of small lot size with a variety of products system. Mass production by product layout which is designed to produce standardized items successively by arranging people and equipment according to the sequence of operations performed on the product is the most effective method for productivity improvement. However, the product layout can not be applicable to small lot size with a variety of products system which more and more manufacturing industries including machinery industy involved with, because some requirements such as volume adequate for reasonable equipment utilization, reasonably stable product demand and product standardization should be met for product layout implementation In this context, this paper intfoduced the integrated system of Material Requirements Planning (MRP) and Group Technology (G.T.) and tried to analyze process-focused cost function of Group Technology method. MRP is a tool to solve the problems of multistage add multiproduct system. It reduces end product into its component parts by product explosion and assigns the required quantities of parts to a specific time period, On the other hand,G.T. classifies the component parts into a set of part families according to the specified similarities in geometric shape and/or processing requirements The basic characteristic of G.T. is machine group/cell layout which performs all the operations required by the designated part family or families. In other words, in the practice of (croup Technology, a group of manufacturing resources including machines tools and fixtures may be arranged in line fashion so that all the parts of a specified part family can be performed with one group jig or fixture and set-up. Group jig and fixture are designed to accept all parts of the part family, with adapters which accommodate some minor variations of parts. As a group of equipment is designated to each part family, there is fixed cost in Group Technology method. Instead, variable cost per part fairly decreased, compared with that of the conventional method (functional layout method for small lot size with a variety of products). And the fixed cost is compensated for by the decreased variable cost i.e. contribution margin. Group Technology, however, can not be applicable to all kinds of small lot size and a variety of products. The objective of this proper is to make clear what is the major factor to increase productivity in G.T. and what is the prerequiste for G.T. implementation in the respect of manufacturing process cost For the purpose, this paper anal iced the break-even point of the conventional method and Group Technology method, the limit of possible cost reduction by G.T. and the leverage affect for the two method. The analyses were performed through cost function on manufacturing process and the result is summarized in the equations of (5) through (10). In conclusion, as the effect of productivity improvement in Group Technology method wholy depends on the relations of the number of part in part family, fixed cost and contribution margin. the analysis among these basic variables should be performed to evaluate the validity of Group Technology method implementation The basic assumptions and limitations in this study are to limit the analysis object only in the manufacturing process cost. As the Group Technology is not only a production technique but also a management concept, the economic benefit of the G.T will be achieved in broad field of the company. Besides, the analysis also has general limitations of BEP analysis. Despite the limitations above mentioned, the cost function analysis seems to be applicable to evaluate the economic justification in the respect of manufacturing process cost for the implement of G.T

기술 혁신과 혁신 자산

이기채 배재대학교사회과학 연구소 2004 사회과학연구 Vol.25 No.-

The purpose of this paper is to describe and explain the mechanism of technological innovations and its commercial exploitation. R&D is widely used as an indicator of functional asset for producing technological innovation. But R&D conception does not grasp the full spectrum of relevant assets for innovative activities of the firm. In this regard, Christensen suggested more richly faceted framework for analyzing assets for technological innovation which is based on resources and capabilities of the firm. According to the framework, technological innovation assets are classified into four categories such as scientific research assets, process innovative assets, product innovative application assets and aesthetic design assets. And Teece argued the importance of functional complementary assets to appropriate the rent from the technological innovation produced. In this paper we explained technological innovation and its commercial exploitation in terms of innovative asset profile category and complementary asset in a integrated perspective.

피부미용실의 서비스품질이 고객만족에 미치는 영향

이기채,김선옥 대한피부미용학회 2005 대한피부미용학회지 Vol.3 No.2

This is a study on examining the service quality determinants and on finding of the influence of the service quality upon the customers' satisfaction. For such purposes, the author has derived determinants appropriate for the characteristics of services provided in the esthetic salons, set up the study models and study hypotheses showing the influence paths between the service quality, customers' satisfaction and repurchase intention, and testified the established hypotheses through the statistical analysis of the collected data. Referring to the precedent studies of Grőnroos and KS-SQI about the determinants of the service quality, the author has accepted, to construct the study model, the technical quality and the functional quality as the service quality dimension. For this study, questionnaires have been collected through on-line from 230 netizens who have experienced the skin care service in esthetic salons, as well as through off-line from 233 of those who have received the skin care service in esthetic salons from Seoul, Daejeon, Daegu, Gumi and Jinhae and used for the statistical analysis. The author used the SAS version 8.1 and LISREL version 8.53 for the frequency analysis, the factors analysis, the reliability analysis, the variance analysis, the regression analysis, the correlation analysis and the covariance structural analysis. The result of the corroborative study shows that the skin care service's quality comprises three determinants: "expert skill" belonging to the technical quality, "customers reception service" belonging to the functional quality, and "physical environment". What more positively influenced on the overall service quality was revealed in the order of the physical environment, the customers reception service and the 'expert skill', which shows that we could enhance the quality of incorporeal service with the strategy of differentiating the corporeal "physical environment". Also, as the 'expert skill' was found to be one of the main determinants of the service quality, it should be stated that we must not overlook the technical quality in the skin care services and we could enhance the service quality with the enhancement of the professional skills. The result of the test of the study hypotheses reveals that the indirect influence of the service quality upon the repurchase intention through the customers' satisfaction is bigger than the direct influence of the service quality upon it. This result well explains the study intention and the role of the parameters and means that the high service quality is not directly related with the repurchase intention. It also shows that the service quality and the customers' satisfaction should be taken into account with the concept of the price considered and a strategy as to the quality enhancement from service providers as well as the satisfaction of service consumers is needed.

二次 사이버네틱스(second-order cybernetics)와 시스템 管理理論에 關한 硏究

李琪彩 培材大學校 1985 論文集 Vol.6 No.-

The 1980's will be the age of the growing complexity of the business world, Economic environments were characterized by the stable and positive growth and continuity until 1970's, but are characterized by turbulent instability and discontinuity in 1980's. Under these circumstances, many leading companies are troubling world-widely in crisis such as bankruptcy, liquidation, takeover, structural changes and relative loss of the potential growth opportunity. The causes of mismanagement are manyfold, but recently it is argued that obsolete or incomplete management tools and theories having no competence in currently variable complex environment are one of the most important cause First -order (or classical) cybernetics based on the idaas of feedback, feedforward, equilibrium arts homeostasis was absolutely adeguate in the 1960's and 1970's, and also greatly contributed to the management theory formation. Economic circumstances, however, haved changed in 1980's. Therefore, management theory has to be adjusted on new grounds, and second-order cybernetics which is just on the beginning stage of study and premises the circumstances of discontinuity and instability, seems to play an important role in this process . Whereas classical cybernetics based on the stabilization, growth, adaptation and equilibrial selfforganization deals with systems of structure maintaining behaviour, second-order (new) cybernetics based on the concepts of autopoiesis, non-equilibrial selforganization, co-evolution and evolution focusses on systems of evolutionary behaviour. Classical cybernetics inherently means inflexibility, and easily leads to lethal failure in a turbulent environment. On the other hand, second-order cybernetic systems allow evolutions to new organizational states on a higher level through autopoietic process. The systems encourage fluctuation determined by change and reinforce it by a non-linear positive feedback until a limit of stability has been reached. This flexible activities are apt to induce innovation and survival in a turbulent situation. . In this context, this paper introduced the basic concepts on second- order cybernetics by contrast with classical cybernetics, and tried to analyze the cybernetic rules which can be applied to actual business management being confronted with complexities of our turbulent environment. As the present business world is dynamically interrelated, a network of rules founded on insight of new cybernetics can be used to prevent mismanagement and to set warning signals to detect unfavourable development as soon as possible.

기후변화 대응 안정적 우량종자 공급을 위한 새꼬막(Scapharca subcrenata) 육상채묘 시험연구

김영식,조애라,이기채,기건도,박지현,주한솔,최민지,이경식,김충남 한국수산과학회 양식분과 2023 한국수산과학회 양식분과 학술대회 Vol.2023 No.6

TPM 프로그램의 활동요인이 경영성과에 미치는 효과

오연우(Yon-Woo OH),이기채(Kee-Chai LEE) 대한산업공학회 2005 대한산업공학회 춘계학술대회논문집 Vol.2005 No.5

장흥해역 해양환경과 새꼬막(Scapharca subcrenata) 살포밀도별 작황분석

조애라,김영식,최민지,기건도,이경식,김충남,이기채 한국수산과학회 양식분과 2023 한국수산과학회 양식분과 학술대회 Vol.2023 No.6