• 대한토목학회논문집
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• 제12권1호
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• pp.131-140
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• 1992

다목적댐의 유입량 예측과 더불어 유출량의 이용율을 극대화 하면서 홍수 피해를 극소화 시킬 수 있는 방류량을 결정할 수 있는 실시간(實時間) 홍수제어(洪水制御) 문제에 있어서는 수문(水文) 및 기상자료 등 많은 정보의 실시간(實時間) 온라인 취득과 컴퓨터를 사용한 분석이 필수적이다. 입수된 자료의 정확한 분석으로부터 내용이 압축된 컬러 그래픽 등 사람과 컴퓨터간의 대화매체를 도입하면 홍수방류를 결정할 수 있는 책임자에게 분석된 정보를 보다 쉽고 신속하게 전달할 수 있다. 개발된 PC-REFCON은 개인용 컴퓨터를 주축으로 한 실시간 홍수예측 및 저수지 운영을 위한 쇄신된 의사결정 지원 시스템으로서, 자료의 실시간 취득과 가공을 위한 데이타 베이스와 유입량 예측과 댐 방류량 결정을 위한 모형을 포함하였을 뿐 아니라 지금까지와는 전혀 새로운 차원으로 모든 정보를 그래픽과 테이블로 제공하여 주는 대화형 시tm템으로 구성되었다. PC-REFCON은 1992년부터 우리나라의 9개 전 다목적댐 저수지를 홍수시에 실시간으로 홍수량 예측과 방류량을 결정할 수 있는 시스템으로 이용될 것이다.

• Journal of Hospice and Palliative Care
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• 제24권3호
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• pp.184-193
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• 2021

Purpose: This study attempted to develop clinical guidelines to help patients use hospice and palliative care (HPC) at an appropriate time after writing physician orders for life-sustaining treatment (POLST) by identifying the characteristics of HPC use of patients with terminal cancer. Methods: This retrospective study was conducted to understand the characteristics of HPC use of patients with terminal cancer through decision tree analysis. The participants were 394 terminal cancer patients who were hospitalized at a cancer-specialized hospital in Seoul, South Korea and wrote POLST from January 1, 2019 to March 31, 2021. Results: The predictive model for the characteristics of HPC use showed three main nodes (living together, pain control, and period to death after writing POLST). The decision tree analysis of HPC use by terminal cancer patients showed that the most likely group to use HPC use was terminal cancer patients who had a cohabitant, received pain control, and died 2 months or more after writing a POLST. The probability of HPC usage rate in this group was 87.5%. The next most likely group to use HPC had a cohabitant and received pain control; 64.8% of this group used HPC. Finally, 55.1% of participants who had a cohabitant used HPC, which was a significantly higher proportion than that of participants who did not have a cohabitant (1.7%). Conclusion: This study provides meaningful clinical evidence to help make decisions on HPC use more easily at an appropriate time.

• 아동학회지
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• 제34권5호
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• pp.43-59
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• 2013

The purpose of this study was to develop a Career Group Counseling Program to increase the career maturity, career-identity and career-decision self-efficacy of high school students, and to examine the effectiveness of such a program. In order to evaluate the effectiveness of the program thus developed, an experimental group which was exposed to the program and a control group without exposure to the program were compared. The program was administered over eight weekly sessions, each session lasting ninety minutes. The subjects in this study consisted of twenty four students. The experimental group and a control group were organized with twelve students in each. For the purpose of data processing, SPSS 16.0 was used to analyze the statistical results. The Career Maturity Scale, the Identity Scale, and Career Decision-Making Self-Efficacy Scale were used in a pre-test, post-test, and follow-up test. The findings of this study were as follows : The treatment group exhibited a significant statistically increasing degree of career maturity, career-identity and career-decision self-efficacy levels in comparison to the control group. The results of the study indicated the effectiveness of this newly developed Career Group Counseling Program on increasing career maturity, career-identity and career-decision self-efficacy levels.

• Journal of the Korean Data and Information Science Society
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• 제26권3호
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• pp.639-652
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• 2015

현대의 제조공정은 컴퓨터의 발전과 통신 및 네트워크의 발달로 컴퓨터통합제조가 가능해졌다. 이로 인해 고품질 제품의 고속 생산공정이 확대되고, 공정에서 실시간으로 전송되는 다양한 품질변수들의 데이터 축적 또한 가능하게 되었다. 이를 관리하기 위해서는 다변량 통계적 공정관리 절차가 필요하다. 전통적으로 사용하는 다변량 관리도는 이상상태 발생시 이상신호를 주지만, 이상원인이 어떠한 변수에 어떠한 영향을 주는지에 대한 정보를 제공하지 않는다는 단점이 있다. 이를 보완하기 위해 데이터마이닝과 기계학습 기법을 이용할 수 있다. 이 논문에서는 의사결정나무 학습 기법을 이용한 다변량 공정관리 절차를 소개하고, 이변량인 경우 모의실험을 통하여 그 효율을 살펴보았다. 모의실험 결과를 살펴볼 때, 상관계수에 따라 이상상태 탐지 능력은 비슷한 것으로 나타났고, 이상상태에 대한 분류 정확도는 상관계수와 이상원인의 형태에 따라 차이가 있지만 기존의 다변량 관리도에서는 제공하지 않는 이상원인의 정보를 제공하는 장점이 있음을 알 수 있다.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1288-1293
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• 2009

Performing 'Mega Project' in which various stakeholders are involved is difficult to control due to the respective conflicting objectives. Urban regeneration which is being challenged issue in various ways can be defined as the mega project. Since the mega project like urban regeneration a long-continued project and includes a lot of participants whose benefits conflict, cooperation among stakeholders is essential. Moreover, as the project goes, diverse decision making situations which require collaboration happen, and if proper decision making cannot be given at that time, the whole project would have critical effects. Also, since each activity concerns numerous stakeholders, prompt decision making is difficult in the mega project. Therefore, the objective of this study is to support stakeholder's cooperative decision making in order for conducting successful project. For the purpose of the paper, the concept of cooperation in mega project is redefined and a cooperative decision making framework is suggested. Also, the term of governance, which means cooperative mechanism based on the mutual trust, information sharing and partnership, is applied to the newly defined cooperation. The suggested cooperative decision making framework contains the structure of stakeholders in urban regeneration project which enables participants to understand the relationship among bodies and checklists for supporting decision making appropriately. The application of the framework proposed in this research is expected to contribute subjects' suitable decision making by providing proper information in a timely manner.

• 한국간호교육학회지
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• 제18권3호
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• pp.393-402
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• 2012

Purpose: This study was conducted to test the effect of a Career Search Program on career search efficacy, career search behavior, and career decision making for nursing students. Methods: A non-equivalent pre-post test of a quasi-experimental design was used. Fifty first grade nursing students participated in the study with 22 in the experimental group and 28 in the control group. We used a Career Search Program which was held 6 times over 6 weeks, 90 minutes per session. Descriptive statistics, ${\chi}^2$-test, and independent t-test were used for statistical analysis with SPSS 19.0. Results: There were significant increases in career search efficacy (t=2.07, p=.044) and career search behavior(t=2.65, p=.011) in the experimental group compared to the control group. However, career decision making was not significantly changed (t=0.96, p=.342). Conclusion: These results suggest that a Career grade Search Program has an effect on increasing career search efficacy and career search behavior in first grade nursing students. In addition, more programs to impact career decision making should be developed for nursing college students.

• 제어로봇시스템학회논문지
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• 제13권8호
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• pp.760-768
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• 2007

This paper introduces an emotional behavior decision model based on linear system for intelligent service robots. An emotional model should make different behavior decisions according to the purpose of the robots. We propose an emotional behavior decision model which can change the character of intelligent service robots and make different behavior decisions although the situation and environment remain the same. We defined each emotional element such as reactive dynamics, internal dynamics, emotional dynamics, and behavior dynamics by state dynamic equations. The proposed system model is a linear dynamic system. If you want to add one external stimulus or behavior, you need to add just one dimensional vector to the matrix of external stimulus or behavior dynamics. The case of removing is same. The change of reactive dynamics, internal dynamics, emotional dynamics, and behavior dynamics also follows the same procedure. We implemented a cyber robot and an emotional head robot using 3D character for verifying the performance of the proposed emotional behavior decision model.

• 산업경영시스템학회지
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• 제6권8호
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• pp.63-71
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• 1983

Aggregate planning coordinate the control variable over long-term to apply a demand variable and forcasting. In order to necessary the goal that doesn't make an inter-contradiction and explicitly defined. We made a considerable point of system approach for scheduling establishment. It include the control variables of aggregate planning : 1) employment 2) over time working and idle time 3) inventory 4) delivery delay S) subcontract 61 long - term facility capacity. Each variables composed of pure strategy as like a decision of inventory level, a change of employment level, etc. md alternative costs make a computation on the economic foundation. But the optimum alternative costs represent the mixed pure strategy. The faults of this method doesn't optimum guarantee a special scheduling as well as increasing a number of alternative combination. Theoretical, Linear Decision Rule make an including all variables, but it is almost impossible for this model to develope actually And also make use of the aggregate planning problem for developing system approach : LDR, heuristic model, Search Decision Rule, all kind of computers, simulation. But these models are very complex, each variables get an extremely inter-dependence. So this study be remained by theory level, some approach methods has not been brought the optimum solution to apply in every cases.

• Nuclear Engineering and Technology
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• 제44권6호
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• pp.653-662
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• 2012

We evaluate the technical and organizational aspects of the severe accident management guideline (SAMG), focusing on the decision-making process in the technical support center (TSC). From the technical aspects, we conclude that the present SAMG is a good tool that can assist the TSC in efficiently managing probable severe accidents. However, we suggest that the clear separation of the emergency operating procedure (EOP) and SAMG, which shifts plant control from the main control room (MCR) to the TSC, might not be an effective framework from an organizational perspective. Studies on organizational behavior demonstrate that a group decision made under a risky situation might be polarized in either a risky or cautious way. We recognize that we cannot be free from the polarization effect since the current SAMG recommends that the TSC evaluate the advantages and disadvantages of strategies to be implemented and choose the best one based on a group decision process. Illustrative examples of accident management under risky conditions are recapitulated from previous studies of the authors and we propose that the SAMG should be more proceduralized to remove this polarization from the decision-making process.

• 한국학교보건학회지
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• 제24권2호
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• pp.164-172
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• 2011

Purpose: This study was to examine the effect of career group counseling program using cinema for the improving self identity and career decision-making self-efficacy of adolescents on probation. Methods: The subject were 36 (Experimental. 20, Control. 16) adolescents on probation who were referred to N mental health center in G city South Korea, but 2 of the experimental group did not complete the program. The program consisted of 8 sessions and was conducted from November, 2008 to February, 2009. The study variables were 'self identity' and 'career decision-making self-efficacy' surveyed by self-reported questionnaires. Results: Self identity (t=-2.797, p=.005), and career decision-making self-efficacy (t=-3.354, p=.001) changed more significantly in the experimental group than in control group after career group counseling program using cinema. Conclusion: Based on these results, career group counseling program using cinema for adolescents on probation was especially effective in increasing self identity and career decision-making self-efficacy.