• Advances in Computational Design
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• v.2 no.3
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• pp.241-256
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• 2017

This paper introduces the process for Multi-objective Optimization Framework (MOF) which mediates multiple conflicting design targets. Even though the extensive researches have shown the benefits of optimization in engineering and design disciplines, most optimizations have been limited to the performance-related targets or the single-objective optimization which seek optimum solution within one design parameter. In design practice, however, designers should consider the multiple parameters whose resultant purposes are conflicting. The MOF is a BIM-integrated and simulation-based parametric workflow capable of optimizing the configuration of building components by using performance and non-performance driven measure to satisfy requirements including build programs, climate-based daylighting, occupant's experience, construction cost and etc. The MOF will generate, evaluate all different possible configurations within the predefined each parameter, present the most optimized set of solution, and then feed BIM environment to minimize data loss across software platform. This paper illustrates how Multi-objective optimization methodology can be utilized in design practice by integrating advanced simulation, optimization algorithm and BIM.

• The Journal of the Korea Contents Association
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• v.15 no.1
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• pp.495-505
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• 2015

The purpose of the study is to investigate the problem solving abilities of nursing students in case of simulation-based emergency care for respiratory distress patients. For this study, 117 third year nursing students participated in the adult simulation practice from April 22 to May 31, 2013. The results of the study revealed that problem solving abilities after simulation practice were significantly greater than those after self-directed learning(t=2.59, p=.010). In the analysis of subcategories of problem solving abilities, there were significant differences in the definition of problem solving (t=2.95, p=.004), the device of problem solutions(t=2.10, p=.0.37), and the review of problem resolutions(t=3.06, p=.002). Based on these results, the study confirmed that the simulation practice was an effective teaching method for problem solving skills.

• The Journal of Korean Academic Society of Nursing Education
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• v.20 no.1
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• pp.37-46
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• 2014

Purpose: This study was to measure and identify the differences of perceived confidence in practice of core basic nursing skills performed by new graduate nurses in Korea. Methods: The tool used in this study was a questionnaire for measuring the confidence in 20 items of core basic nursing skills which was structured based on Korean Accreditation Board of Nursing Education tool. 231 new graduate nurses participated in this study. The reliability of this questionnaire had Cronbach's ${\alpha}$ .918. Results: Subjects who experienced simulation education and standard patient education were 86.6% and 35.9%, respectively. Item enema intervention, tracheostomy care, and blood transfusion showed low practice confidence level. These items showed significant differences on whether the subjects experienced simulation and clinical practicum or not. Conclusion: Developing and managing clinical education program under deep cooperation between practicum agency and clinical instructor are needed. Simulation practicum will complement insufficient core basic nursing skills between newly graduated nurses before they allocate at the clinical department.

• The Journal of Korean Academic Society of Nursing Education
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• v.29 no.4
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• pp.395-404
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• 2023

Purpose: The purpose of this study was to identify the factors influencing the nursing practice readiness of newly graduated nurses. Methods: The participants were 120 new nurses with 1 to 12 months of work experience at two tertiary hospitals in Seoul and Gyeonggi Province. The data were collected through an online questionnaire from February 6 to April 30, 2023. The collected data were analyzed using the IBM SPSS 25 program, and the independent t-test, Mann-Whitney U-test, ANOVA, Pearson's correlation coefficient, and a multiple regression analysis were performed. Results: The participants' nursing practice readiness was found to be positively correlated with their confidence in core nursing skill performance, satisfaction with clinical practice, satisfaction concerning simulation education, satisfaction regarding preceptorship, length of preceptorship and length of current unit placement. The regression analysis showed that the significant variables affecting nursing practice readiness were confidence in core nursing skill performance and satisfaction with clinical practice, and the explanatory power of the variables on nursing practice readiness was 36.0%. Conclusion: In order for newly graduated nurses to achieve nursing practice readiness, it is necessary to develop a nursing education program that can improve their confidence in core nursing skills performance and satisfaction with clinical practice in the nursing college curriculum and further research on the factors affecting nursing practice readiness is needed.

• The Journal of the Korea Contents Association
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• v.22 no.2
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• pp.58-70
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• 2022

The emergency preparedness exercise currently conducted by the government has been conducted as a message-based exercise for more than 50 years. Therefore, in this study, a simulation-based maintenance practice model was developed focusing on infectious disease situations, and the possibility of a training system applying scientific techniques was presented. As a result, First, a simulatioon logic assuming an infectious disease outbreak situation was developed. The situation of an infectious disease outbreak was made to occur when measures are not taken within 24 hours for the death due to disease, and when appropriate measures are not taken for contaminated food (24 hours), drinking water (12 hours), and drinking water shortage (24 hours). Second, in order to implement the simulation logic, simulation engine SW was developed for emergency medical team, epidemiological investigation team, dead burial team, quarantine and disinfection team, etc., and situation map SW was developed so that these contents could be expressed in the situation map. As suggested in this paper, if scientific techniques are applied to the simulation-based government practice model to expand the scope, training will be possible by creating practical situations that can occur in the real world, and the Chungmu plan and various emergency preparedness plans will be verified.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.23 no.3
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• pp.283-291
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• 2016

Purpose: This study was done to evaluate the persistency of effects of an integrated nursing simulation program on interest in learning, recognition of importance of communication, communication skills, and problem-solving abilities. Method: Forty-seven nursing students were recruited for this quasi-experimental design research. The experimental group (n=23) performed the simulation program for two weeks, and the control group (n=24) performed traditional clinical nursing practice for two weeks. Data were collected at baseline, immediately after the intervention, at 4 weeks, and finally at 8 weeks. Results: With respect to all variables, no significant differences were found between the experimental group and the control group. Interest in learning showed a significant increase in the control group (F=3.59, p=.018) at 4 weeks, and there was a significant increase in problem-solving abilities in the experimental group (F=4.98, p=.004) immediately after the intervention. Conclusion: Findings from this study suggest that the integrated nursing simulation program is as effective as the traditional clinical nursing practice, and the integrated nursing simulation program could be used as an alternative.

• Korean Journal of Adult Nursing
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• v.28 no.4
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• pp.447-458
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• 2016

Purpose: This study was designed to describe the effects of a nursing simulation focused on patients with cardiac arrest. The study was designed to measure knowledge, self-confidence, critical thinking, and clinical performance ability of nursing students. Methods: A non-equivalent control group quasi-experimental design was used. Thirty students in the experimental group received two hours of pre-learning and three hours of skill and simulation practice. Another thirty students in the experimental group received a two hour conventional lecture and three hours for skill practice. The post survey was completed by both groups. Results: Students in the experiemetal group scored significantly higher than students in control group. The critical thinking disposition was not significantly different between the two groups of students. Conclusion: The results indicate that a simulation education program is more effective in a number of areas including knowledge, self-confidence, and clinical performance. It is recommended that simulation education should be expanded to various clinical situations.

• Nuclear Engineering and Technology
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• v.42 no.4
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• pp.377-381
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• 2010

In 2007 the Nuclear Energy Agency's Committee on the Safety of Nuclear Installations published Best Practice Guidelines for the use of CFD in Nuclear Reactor Safety. This paper provides an overview of the document' contents and highlights a few of its recommendations. The document covers the full extent of a CFD analysis from initial problem definition and selection of an appropriate tool for the analysis, through final documentation of results. It provides advice on selection of appropriate simulation software, mesh construction, and selection of physical models. In addition it contains extensive discussion of the verification and validation process that should accompany any high-quality CFD analysis.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.38 no.4
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• pp.98-108
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• 2015

This paper introduces the existence of purchase dependence that was identified during the analysis of inventory operations practice at a sales agency of dealing with spare parts for ship engines and generators. Purchase dependence is an important factor in designing an inventory replenishment policy. However, it has remained mostly unaddressed. Purchase dependence is different from demand dependence. Purchase dependence deals with the purchase behavior of customers, whereas demand dependence deals with the relationship between item-demands. In order to deal with purchase dependence in inventory operations practice, this paper proposes (Q, r) models with the consideration of purchase dependence. Through a computer simulation experiment, this paper compares performance of the proposed (Q, r) models to that of a (Q, r) model ignoring purchase dependence. The simulation experiment is conducted for two cases : a case of using a lost sale cost and a case of using a service level. For a case of using a lost sale cost, this paper calculates an order quantity, Q and a reorder point, r using the iterative procedure. However, for a case of using a service level, it is not an easy task to find Q and r. The complexity stems from the interactions among inventory replenishment policies for items. Thus, this paper considers the genetic algorithm (GA) as an optimization method. The simulation results demonstrates that the proposed (Q, r) models incur less inventory operations cost (satisfies better service levels) than a (Q, r) model ignoring purchase dependence. As a result, the simulation results supports that it is important to consider purchase dependence in the inventory operations practice.

• Journal of Digital Convergence
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• v.20 no.2
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• pp.525-541
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• 2022

This study aimed to develop simulation practice program with PBL (S-PBL) for nursing students and evaluate the effect of the program on their problem solving ability, clinical performance competency, learning satisfaction and confidence. The participants were nursing students who applied for simulation practice courses at an university in J province. The study was a mixed-method design using a nonequivalent one group pretest-posttest design (n=91) and focus group interview (n=12). Quantitative data were analyzed using SPSS 23.0 program and qualitative data thematic analysis. Quantitative data showed S-PBL was effective in improving clinical performance competency, learning satisfaction and confidence of the participants, but not in improving problem solving ability. As a result of the qualitative study, four themes and eight sub-themes were derived, and the themes were "Learn integrated nursing care based on priority", "Experience team cooperation through communication," "Learn vividly critical care" and "Improved nursing competency". The S-PBL could be effective in practical education for nursing students. In further study, it is necessary to develop various simulation practice programs based on PBL through a mixed-method design and apply them to nursing curriculum.