• 대한전기학회논문지
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• 제39권7호
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• pp.720-728
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• 1990

A learning control method is proposed in this paper, using a knowledge base which contains control rules, data, and patterns of the past experience of a plant. The knowledge for plant control is retrieved from measurement data during operation and continually modified after control performance evaluation. A control method is proposed using tinually modified after control performance evaluation. A control method is proposed using fuzzy model of the plant and a recursive statistic decision method of fuzzy subset for control rule generation. Also, the resulting knowledge-based control algorithm has been applied to aprocess and its performance improvement and proper generation of appropriate control rules have been verified.

• 디지털융복합연구
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• 제10권11호
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• pp.47-58
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• 2012

본 연구는 Delphi 및 DEMATEL 기법을 활용하여 참여정부의 전시작전통제권(이후 전작권) 전환에 관한 정치 군사적 결정요인을 선정하고, 이들 결정요인간의 영향정도 및 관계를 정량적 정성적으로 분석하는데 있다. AHP를 활용한 기존 연구에서는 전작권 전환 결정요인을 학술자료와 현장실무경험을 바탕으로 선정하여, 요인선정에 대한 보다 객관적인 분석이 요구되었다. 본 연구를 위해 온라인 및 오프라인 환경에서 안보 관련 전문가 집단을 대상으로 일련의 설문을 실시하였다. 분석결과로 참여정부의 전작권 전환 결정요인은 크게 '군사주권의 회복', '평화통일을 위한 여건조성', '우리나라의 국력신장에 따른 국격 제고'로 AHP기법에 의한 기존연구와 대동소이하였으며, 전작권 전환 결정요인간의 영향 및 관계는 '군사주권 회복'과 '평화통일을 위한 여건조성'은 별개 사안으로 상호 연관성이 없고 '군사주권 회복'이라는 진보세력의 정치적 이익이 주된 결정요인이었던 것으로 나타났다. 본 연구는 Delphi 및 DEMATEL 기법을 적용하여 참여정부의 전작권 전환 결정요인에 대해 정략적 정성적 분석을 실시하였는데 의의가 있다.

• 항공우주기술
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• 제13권1호
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• pp.86-95
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• 2014

위성의 임무를 성공적으로 수행하기 위해서는 복잡한 처리 절차와 이를 위한 명령이 필수적이다. 이를 위해 절대 시간 명령과 순차 명령 집합이 적용되어 위성의 운용에 사용되고 있다. 이러한 명령 체계는 순차적인 제어 흐름을 처리할 수는 있으나 해당 시점에서의 여러 조건에 대한 다양한 의사 결정 및 이에 따른 분기를 처리하기 힘들다는 단점이 있다. 이를 해결하기 위해 한국항공우주연구원 위성비행소프트웨어팀에서는 기존의 순차명령집합인 RTCS의 기본 형태를 유지하고 1 바이트의 연산 코드를 추가함으로써, 조건 판단 및 분기가 가능한 조건형 순차명령 집합인 RTCSC를 개발하였다. 여기서는 OBCP, VML 및 IP와 같은 위성 운용을 위한 On-Board Control System으로서의 RTCSC의 설계 및 그 구현에 대하여 소개한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권4호
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• pp.649-664
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• 2011

Cooperative spectrum sensing (CSS) with decision fusion is considered as a key technology for tackling the challenges caused by fading/shadowing effects and noise uncertainty in spectrum sensing in cognitive radio. However, most existing solutions assume an error-free decision transmission, which is obviously not the case in realistic scenarios. This paper extends the general decision-fusion-based CSS scheme by considering the fading/shadowing effects and noise corruption in the common control channels. With this more practical model, the fusion centre first estimates the local decisions using a binary minimum error probability detector, and then combines them to get the final result. Theoretical analysis and simulation of this CSS scheme are performed over typical channels, which suggest some performance deterioration compared with the pure case that assumes an error-free decision transmission. Furthermore, the fusion strategy optimization in the proposed cooperation model is also investigated using the Bayesian criteria. The numerical results show that the total error rate of noisy CSS is higher than that of the pure case, and the optimal values of fusion parameter in the counting rule under both cases decrease as the local detection threshold increases.

• 산업경영시스템학회지
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• 제4권4호
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• pp.63-69
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• 1981

As enterprises are getting bigger and bigger and more competecious, an engineering economy for the maximization of profit based on basic theory must be considered. This thesis present dynamic computer model for the decision which controls complicated and various man- machine system optimally. This model occur in general stage can be adaptable to every kind of enterprises. So, any one who has no expert knowledge is able to get the optimal solution. And decision tree used in this paper can be applied in every kinds of academic circles as well as whole the industrial world. This paper studied optimal management of engineering project based upon basic theory of engineering economy. It introduces and functionizes the variables which generalize every possible elements, set up a model in order to find out the variable which maximize the calculated value among many other variables. And the selected values ate used as decision- marking variables for the optimal management of engineering projects. It found out some problem of this model. They are : 1. In some kinds of man-machine system it refers to Probability, but other case, it depends on only experimental probability. 2. Unless decision making process (decision tree) goes on, this model can not be applied. So these cases, this paper says, can be solved by adapting finite decision tree which is analyzed by using the same technic as those in product introduction problem. And this paper set up the computer model in order to control every procedure quickly and optimally, using Fortran IV.

• 산업경영시스템학회지
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• 제13권21호
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• pp.7-10
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• 1990

In the modern society where information system based on the computer in organization have been developed over again. A decision support system is one of the most popular topics. The computer have been discussed in relation to management strategy between enterprisers and researchers so far, but the accumulation of data resource and communication foundation have not been attended in actuality. The organic connection between business and information technique have been less progressed than our expectation. At this point of time. such a technical restrution getting removed, We have closed a gap between management strategy and computer. Now we are taking a growing interest in computer use for supporting proceedings decision, a lot of strategic marketing decision is wifely used in such a case, and the technical development is comming to advanced. In this study, I Investigate such a new tendency as strategic program and proceedings decision system. I will especially focus my study on a strategic program and a budget control corporation, so to speak, on strategic budget management system. Concretely the purpose of this study is to investigate what functions the proceedings decision support system requires in order to deal with the problem of strategic level and to practically establish the system with the use of DSS GENERATOR/ARISTOTLE in my laboratory.

• 디지털융복합연구
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• 제11권10호
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• pp.181-187
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• 2013

본 연구는 대학생들의 진로집단상담 프로그램을 통한 진로결정효능감의 효과를 검증하여 향후 대학생들의 진로집단상담 프로그램 개발 및 대학의 진로 지도의 방향 설정의 기초가 되고자 한다. 연구방법으로는 창원시 소재 K대학교의 대학생들을 대상으로 하여 실험집단과 통제집단으로 구분하여 진로상담 프로그램의 실시 전후의 효과 검증을 실시하였다. 검증결과 우선 대학생 진로상담프로그램을 적용한 실험집단이 적용받지 않은 통제집단에 비해 진로결정효능감수준이 향상되었다. 진로결정효능감 변화량의 집단간 T-test 결과 진로결정효능감 전체에 대하여서도 유의한 차이가 있는 것으로 나타났으며 세부 요인으로서는 계획수립, 자기평가의 변화가 유의한 결과를 나타내었다.

• 동아시아경상학회지
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• 제11권1호
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• pp.41-51
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• 2023

Purpose - The prior literature has shown that there is a lack of a complete assessment of the key decisions in cold chain logistics. Such a study is required to offer recommendations for research in this expanding but under-researched topic with potentially significant management ramifications. Research design, Data, and methodology - The current researcher accumulated peer-reviewed sources from databases to augment each chosen study's validity. Selection varied between seminal works and much of the existing literature. The selection process was consistent with using a content checklist that established the inclusion and exclusion criteria. Result - The research findings indicate total five solutions regarding better decision in Cold Chain Logistics (CCL), such as (1) Pricing Decision in Cold Chain Logistics, (2) Decision on Temperature Control Decision in Cold Chain Logistics, (3) Supply Chain Network Design in Cold Chain Logistics, (4) Decision on Minimizing Inventory in Cold Chain Logistics, (5) Decision on Logistics Distribution. Conclusion - Stability of a cold chain should be maintained from manufacture or via logistical components and cold logistics products are susceptible to several variables, such as temperature, and degradation can easily harm food supply, product prices, and human health. Product safety infractions substantially impact human health, among other losses linked with a functioning CCL.

• 사회복지연구
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• 제36호
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• pp.203-225
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• 2008

본 연구는 입양으로 자녀를 포기한 미혼모들이 경험하는 슬픔에 대한 외적통제소, 자아존중감, 사회적지지, 입양결정과정의 영향력의 정도와 자녀관계, 슬픔대처행동에 따른 집단 간 차이를 알아보기 위한 것이다. 이를 위해 자녀를 입양 보내고 난 후, 미혼모 보호시설 퇴소 직전의 159명의 미혼모들의 설문자료를 다중회귀분석과 t검증을 통해서 분석하였다. 연구결과 외적통제소가 높을수록, 입양결정을 후회할수록, 미혼부의 지지가 높을수록, 미혼부의 입양 압력이 높을수록 슬픔을 더 많이 경험하는 것으로 조사되었다. 또한 출산 후 자녀 및 슬픔대처행동 특성에 따른 t검증에서는 수유, 이별식, 타인에게 슬픔표현, 홀로 슬픔 표현, 자녀와의 만남에 대한 기대여부에 따라서 집단 간 슬픔의 차이가 나타났다. 이를 기초로 미혼모들의 미혼모 보호시설에 머무는 기간 동안 내적통제소를 강화시키는 실천개입을 해야 하며, 미혼부와의 관계에서 해소되지 않는 감정들을 좀 더 면밀하게 다루어줄 필요성이 제기된다. 또한 퇴소 전 슬픔의 감정을 충분히 해소하고, 표현할 수 있는 개입이 이루어져야 하며, 입양결정에 대한 충분한 탐색과 입양결정을 번복한 집단에 대한 차별화된 개입이 제공되어야 할 것이다.

• 지역사회간호학회지
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• 제6권1호
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• pp.5-33
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• 1995

The objective of the study are two-fold: one is to explore the relationship between environment, organizational structure, and organizational effectiveness of public health centers in Korea, and the other is to examine the validity of contingency theory for improving the organizational structure of public health care agencies, with special emphasis on public health nursing administration. Accordingly, the conceptual model of the study consisted of three different concepts: environment, organizational structure, and organizational effectiveness, which were built up from the contingency theory. Data were collected during the period from 1st of May through 30th of June, 1990. From the total of 249 health centers in the country, one hundred and five centers were sampled non proportionally, according to the geopolitical distribution. Out of 105, 73 health centers responded to mailed questionnaire. The health centers were the unit of the study, and a various statistical analysis techniques were used: Reliability analysis(Cronbach's Alpha) for 4 measurement tools; Shapiro-Wilk statistic for normality test of measured scores of 6 variables: ANOVA, Pearson Correlaion analysis, regressional analysis, and canonical correlation analysis for the test of the relationships and differences between the variables. The results were. as follows : 1. No significant differences between forma lization, decision-making authority and environmental complexity were found(F=1.383, P=.24 ; F=.801, P=.37). 2. Negative relationships between formalization and decision-making authority for both urban and rural health centers were found(r=-.470, P=.002 ; r=-.348, P=.46). 3. No significant relationship between formalization and job satisfaction for both urban and rural health centers were found (r=-.242, P=.132, r=-.060, P=.739). 4. Significant positive relationship between decision - making authority and job satisfaction were found in urban health centers (r=.504, P=.0009), but no such relationship was observed in rural health centers. Regression coefficient between them was statistically significant($\beta=1.535$, P=.0002), and accuracy of regression line was accepted (W=.975, P= .420). 5. No significant relationships among formalization and family planning services, maternal health services, and tuberculosis control services for both urban and rural health centers were found. 6. Among decision-making authority and family planning services, maternal health services, and tuberculosis control services, significant positive relationship was found between de cision-making authority and family planning services(r=.286, P=.73). 7. A significant difference was found in maternal health services by the type of health centers (F=5.13, P=.026) but no difference was found in tuberculosis control services by the type of health centers, formalization, and decision-making authority. 8. A significant positive relationships were found between family planning services and maternal health services and tuberculosis control services, and between maternal health services and tuberculosis control services (r=-.499, P=.001 ; r=.457, P=.004 ; r=.495, P=.002) in case of urban health centers. In case of rural health centers, relationships between family planning services and tuberculosis control services, and between maternal health services and tuberculosis control services were statistically significant (r=.534, P=.002 ; r=.389, P=.027). No significant relationship was found between family planning and maternal health services. 9. A significant positive canonical correlation was found between the group of independent variables consisted of formalization and de cision-making authority and the group of dependent variables consisted of family planning services, maternal health services and tuberculosis control services(Rc=.455, P=.02). In case of urban health centers, no significant canonical correlation was found between them, but significant canoncial correlation was found in rural health centers(Rc=.578, P=.069), 10. Relationships between job satisfaction and health care productivity was not found significant. Through these results, the assumed relationship between environment and organizational structure was not supported in health centers. Therefore, the relationship between the organizational effectiveness and the congruence between environment and organizational structure that contingency theory proposes to exist was not able to be tested. However decision-making authority was found as an important variable of organizational structure affecting family planning services and job satisfaction in urban health centers. Thus it was suggested that decentralized decision making among health professionals would be a valuable strategy for improvement of organizational effectiveness in public health centers. It is also recommended that further studies to test contingency theory would use variability and uncertainty to define environment of public health centers instead of complexity.