• 한국신뢰성학회지:신뢰성응용연구
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• 제17권2호
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• pp.150-158
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• 2017

Purpose: The RAM objective is a very important factor that has a great effect on the improvement of the operation ration during the operation maintenance and the reduction of the life cycle cost. It is used as a design criterion during the system development, and its sufficiency should be evaluated during its test evaluation. Method: This study analyzed the cases related to RAM objective setting and suggested the improvement measures. Result: The base data for RAM objective is OMS/MP, which needs to be drawn up under the supervision of the requirement military, and a high-accuracy operating availability should be set through ALDT calculation which reflects the military logistics support environment. In addition, data collection necessary for RAM objective and RAM analysis should be made by supplementing the input data of DELIIS. Conclusion: This study suggests improvement of RAM objective considering for the weapon system.

• 한국건축시공학회지
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• 제23권6호
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• pp.673-682
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• 2023

본 연구에서는 모르타르 조건하에서 초지연제 혼입률, 양생온도 및 강도수준 변화에 따른 응결지연 특성을 고찰하고자 하였으며, 세티메타를 이용하여 공사현장의 다양한 외기조건 및 재료배합 조건하에서 초지연제를 사용한 콘크리트의 응결시간을 효율적으로 추정할 수 있는 객관적 방법을 제시하고자 하였다. 그 결과, 비선형 회귀모델의 추정식 및 세티메타을 이용하여 초지연 모르타르의 응결시간을 추정할 수 있을 것으로 사료되며, 초결은 45 ST, 종결은 80 ST 전후로 관리하는 것이 바람직할 것으로 판단된다. 또한, 이를 통해 초지연 콘크리트의 응결시관과 관련한 효율적인 품질관리가 가능할 것으로 사료된다.

• 산업공학
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• 제15권4호
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• pp.460-473
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• 2002

The objective of this paper is to design a Goal Alternatives Disposition System having three main subsystems for setting, evaluating and selecting goal alternatives. For setting of goal alternatives, System Alternatives Tree(SAT) structure will be developed, which has a computation algorithm for setting decision alternatives by the concept of System Priority Number(SPN). For evaluating and selecting of goal alternatives; First, Normative and Exploratory Priority Indices which consider technical performance to the goal, cost and feasibility are developed respectively. Second, Integrated Priority Index is built up to determine the total priority of the Goal Alternatives Disposition(GAD) system. For the design and verification of the GAD system, technological forecasting structure theory, systems engineering methodology will be used.

• Nuclear Engineering and Technology
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• 제19권4호
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• pp.266-278
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• 1987

이 논문은 원자력발전소의 안전성 규제를 위한 성능 기준을 설정하는데 야기되는 몇가지 문제점을 다룬다. 저층 성능 기준을 설정하는 것이 고충 성능 기준을 설정하는 것보다 훨씬 더 어려운 과제이기 때문에, 저층 성능 기준은 보다 쉽게 결정될 수 있는 고충 성능기준으로부터 그와 부합되게 유도되어야 한다. 본 논문은 또한, 평균치-평균치 mapping에 의거한 신뢰도 할당 방법론을 상태변수가 불확실한 stochastic 다목적 최적화 문제로 적용 확장함으로써 성능 기준의 불확실성을 규명하는 몇 가지 방법을 제안한다.

• Nuclear Engineering and Technology
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• 제56권2호
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• pp.520-525
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• 2024

The optimization design problem of nuclear reactor radiation shield is a typical multi-objective optimization problem with almost 10 sub-objectives and the sub-objectives are always demanded to be under tolerable limits. In this paper, a design method combining multi-objective optimization algorithms with paralleling discrete ordinate transportation code is developed and applied to shield design of the Savannah nuclear reactor. Three approaches are studied for light-weighted and compact design of radiation shield. Comparing with directly optimization with 10 objectives and the single-objective optimization, the approach by setting sub-objectives representing weight and volume as optimization objectives while treating other sub-objectives as constraints has the best performance, which is more suitable to reactor shield design.

• 생물환경조절학회지
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• 제13권2호
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• pp.102-106
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• 2004

착색단고추 관비재배 시 토양수분함량이 생육 및 품질에 미치는 영향을 구명하여 생산성 향상을 위한 기초자료로 활용코져 수행하였다. 광합성속도 및 증산속도는 토양내 수분량이 적은 -30 ㎪에서 낮았으며, 토양의 pH와 EC는 수분함량에 따른 큰 변화 없이 안정적이었다. 식물체의 전질소 함량은 -30 ㎪에서 가장 낮았으며, 칼륨, 칼슘, 마그네슘은 -10 kPa에서 가장 높았고, 인산은 처리간에 유의성이 없었다. 정식 60일째의 생육은 토양수분함량이 낮아질수록 저조하였으나 정식 210일째는 토양수분함량간에 유의성이 없었다. 품질은 토양수분함량에 따른 유의성이 없었으나 당도만 -30 ㎪에서 $8.0^{\circ}$Brit로서 가장 높았다. 따라서 착색단고추 관비재배를 위한 토양수분의 함량은 -10 ㎪∼-20 ㎪에서 생육 및 품질이 양호하였다.

• 한국주거학회논문집
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• 제27권4호
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• pp.23-32
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• 2016

The necessity of remodeling performance grading system is getting increased for the systematic management of existing housing stock, providing the resident's right to know and promoting the remodeling projects. A quantitative and objective evaluation method that has reflected the characteristics of remodeling must be developed because there is an aspect of having difficulty of assessment by an ordinary person as remodeling performance contains specialized details while the difficulty of applying the criteria of new buildings in terms of assessment items, criteria and methods. Accordingly, this study sets the goal as setting up the development objectives of performance grading system that has considered the remodeling characteristics. This study has analyzed the various assessment systems related to the domestic apartments as well as setting up the organization system of the remodeling performance grading system, perspectives of performance assessment and scope of assessment through literature, etc. It has also established the principles for setting up the assessment items of remodeling performance grade to present the directions for setting up assessment items and criteria.

• Physical Therapy Rehabilitation Science
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• 제7권1호
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• pp.1-5
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• 2018

Objective: Setting therapeutic goals assist to identify patient priorities and predict problem that may arise in performing daily and functional activities. Goal setting is associated with improved rehabilitation outcomes in individuals with hemiparetic stroke. This study was conducted to assess the effects of having awareness and satisfaction of goals on the functional status of individuals with hemiparetic stroke. Design: Cross-sectional study. Methods: Eighty-one people who had been diagnosed with stroke participated in this study. The study was conducted through a face-to-face surveys to identify participants' awareness and satisfaction of goals and standard assessment tools were used to evaluate patients' functional status. This study measured functional status through three clinical measures including the manual function test (MFT), Berg Balance scale (BBS), and modified Barthel index (MBI). Results: In participants with hemiparetic stroke, the MBI, BBS, and MFT scores were significantly higher in the participants who were aware of the therapeutic goal than in those who were unaware (p<0.05). The MBI, BBS, and MFT scores were not significant between the participants who were satisfied with the goal and those who were unsatisfied. Conclusions: This study suggests that having awareness in therapeutic goal-setting could lead to improvement of functional status in those with hemiparetic stroke. This study highlights how goal-setting can have a positive effect on persons with hemiparetic stroke.

• 수산해양교육연구
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• 제25권2호
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• pp.349-363
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• 2013

Using data from 286 employees who were working in medium and small company in Busan, the study analyzed the influence of educational training program traits perceived by employee on organizational effectiveness and job performance. The main results were as the followings. First, for organizational effectiveness, job relation and objective setting among educational training program traits had statistically significant influence on job satisfaction and involvement in organization after controlling the employee's characteristics. Second, for job performance, after controling the employee's characteristics, job relation, educational method, educational training environment, and objective setting had statistically significant influence on active participation, the improvement of task performance ability and confidence, or professional knowledge improvement. Additionally, among the employee's characteristics, the number of educational training participation was statistically significant predictor for job performance. Based on the main results, some suggestions and the limitations of the study were discussed.

• Communications for Statistical Applications and Methods
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• 제16권2호
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• pp.299-308
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• 2009

실험을 시행하는 경우 모형과 수반하는 가정들이 가지고 있는 불확실성 때문에 하나의 목적만 가지고 실험을 수행하는 경우는 거의 없다. 문헌에서는 이러한 문제를 해결하기 위한 3가지 방법이 존재한다. 최대-최소법, 복합실험법 그리고 제약실험법이 그것이다. 복합실험법과 제약실험법의 동격성이 Cook과 Wong(1994)의 논문에 의해 증명된 이래로 많은 수많은 제약실험법의 방법들이 제안되었지만 모두 복합실험법의 근사알고리즘에 기초하였다. 따라서 본 논문에서는 제약실험법하에서의 정확알고리즘을 제안하여 실제적인 실험환경하에서 도움을 주고자 하였다. 이러한 과정에서 본 논문에서는 다른 형태의 제약실험법의 형태를 제안하였으며 부산물로 비 타당성의 문제를 볼 수 있는 그림을 첨부하였다.