• Research in Mathematical Education
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• v.15 no.2
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• pp.181-196
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• 2011

In mathematical modeling tasks, where students are exposed to model-eliciting for real and open problems, students are supposed to formulate and use a variety of mathematical skills and tools at hand to achieve feasible and meaningful solutions using appropriate problem solving strategies. In contrast to problem solving activities in conventional math classes, math modeling tasks call for varieties of mathematical ability including mathematical creativity. Mathematical creativity encompasses complex and compound traits. Many researchers suggest the exhaustive list of criterions of mathematical creativity. With regard to the research considering the possibility of enhancing creativity via math modeling instruction, a quantitative scheme to scale and calibrate the creativity was investigated and the assessment of math modeling activity was suggested for practical purposes.

• Journal of the Korea Safety Management & Science
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• v.4 no.2
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• pp.83-101
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• 2002

In this thesis presents line balancing problems of two-sided and mixed model assembly line widely used in practical fields using genetic algorithm for reducing throughput time, cost of tools and fixtures and improving flexibility of assembly lines. Two-sided and mixed model assembly line is a special type of production line where variety of product similar in product characteristics are assembled in both sides. This thesis proposes the genetic algorithm adequate to each step in tow-sided and mixed model assembly line with suitable presentation, individual, evaluation function, selection and genetic parameter. To confirm proposed genetic algorithm, we apply to increase the number of tasks in case study. And for evaluation the performance of proposed genetic algorithm, we compare to existing algorithm of one-sided and mixed model assembly line. The results show that the algorithm is outstanding in the problems with a larger number of stations or larger number of tasks.

• The Journal of the Korea Contents Association
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• v.21 no.5
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• pp.234-246
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• 2021

The purpose of this study is to develop the main subjects of the job-based curriculum by deriving the job analysis results of general security job workers in the physical protection field responsible for responding to threats to nuclear materials and nuclear facilities. In the job analysis stage, FGI was conducted on 7 content experts to derive 8 duties and 55 tasks. In addition, knowledge and skills were drawn for each task. In the analysis of educational needs, surveys were conducted for workers in general security jobs to derive the top 25 educational priorities through t-test and Borich needs assess model. At the stage of selecting core tasks and organizing required/optional contents, 42 tasks, both above average or at least one of them, were derived as core tasks based on the result of evaluation of importance and difficulty ratings of 55 tasks through a questionaire. In addition, tasks applied to the top 25 rankings derived from Borich needs assess model were applied as the required contents when designing courses, and tasks which applied only one of them were selected as optional contents. At the stage of required/optional modules and educational contents, four required modules and five optional modules were derived by drifting similar tasks between the required and optional contents. Based on the above results, the study suggested academic and practical implications and future suggestions.

• Journal of Hospice and Palliative Care
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• v.27 no.1
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• pp.31-44
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• 2024

Purpose: The purpose of this qualitative study was to employ Colaizzi's phenomenological research method to elucidate and understand the essence of practical experiences among consultative hospice palliative care nurses working in hospice institutions. Methods: The participants in the study were 15 consultative hospice palliative care nurses with over 1 year of work experience in institutions located in S City, I City, and K Province in South Korea. Data were collected from 23 in-depth interviews and analyzed using Colaizzi's phenomenological qualitative method. Results: The practical experiences of consultative hospice palliative nurses were categorized into five categories, 10 theme clusters, and 25 themes. The five categories included "being aware of patients' situations at the time of transition to hospice palliative care," "empathizing with patients and their families by putting oneself in the other's shoes," "providing patient and family-centered end-of-life care," "experiencing difficulties in practical tasks," and "striving to improve hospice service quality." Conclusion: This study is significant in that it provides practical data for understanding the experiences of consultative hospice palliative care nurses caring for terminally ill patients. This could enhance our understanding of care solutions that effectively tackle the challenges consultative hospice palliative care nurses encounter while fulfilling their roles.

• The Journal of Korean Institute for Practical Engineering Education
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• v.4 no.1
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• pp.165-172
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• 2012

For practical education, many practices using various practical equipments have to be provided to students. In this study, the application of learning curve to represent student's learning process in a practical education using a equipment was studied. Learning curve model was originally developed in production management and based on human performance in human factors aspects. In this study, the application of learning curve model was studied on the eye tracking system, which is used to evaluate the usability of a product in design area. As a case study for its applicability, practical education for eye tracking system was provided to three students and then task completion times were measured for hardware system setup and gaze image recording. Learning curves were estimated for two tasks and then task completion times were predicted using the learning curves. Through ANOVA(analysis of variance) and correlation analysis, the applicability of learning curve to practical education was analysed. As the result, learning curve could be effectively applied to practical eduacation using equipment.

• Journal of the Korean Society for information Management
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• v.37 no.3
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• pp.157-175
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• 2020

This study aimed to understand why small libraries, which have been continuously extended by the increase of social interest in them and the enactment of 「Promotion of Small Library Act」, an independent law about small libraries, are poorly activated. To this end, it examined the actual status of small library operation, related policies, support and legislations. By summarizing the results, it proposed a policy direction and tasks for activating small libraries. The policy tasks for activating them consist of three main tasks such as 'the improvement of laws and institutions for establishing the base of policies and securing practical momentum', 'the reestablishment of roles by policy units and the reinforcement of cooperation systems' and 'the construction of stable operation support system for small libraries', and their 14 sub-tasks, under the vision of 'the activation of small libraries support local residents' happy life' and the core value of 'a comprehensive policy ground, the innovation of policy systems and sustainable management support'.

• Korean Journal of Social Welfare
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• v.59 no.2
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• pp.115-142
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• 2007

This study aimed to explore social work practice tasks and KSA(Knowledge, Skill, Ability) that are being used most frequently in practice field so that developing contents of training program for social worker. The participants in this study included 340 social worker in community welfare center nationwide and exploratory statistical methods were used. The specific result were as follows: 1.social work service was classified four dimensions(direct service, community service, organizational strategic and human resource management, and indirect service). 2.In each dimension, important practice tasks were screened. 3.Basic KSA of social worker that were needed to perform these tasks successfully were screened. On basis of these results, this paper provided some practical strategics for developing training program.

• Journal of Korean Society of Archives and Records Management
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• v.23 no.3
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• pp.21-37
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• 2023

The history compilation of public institutions is a type of record compilation that can be very useful record content for users. The study aims to develop a model for the history compilation of public institutions that can be flexibly applied to the task while providing practical guidance for the actual work of institutional history compilation. To achieve this goal, literature reviews, task analyses, questionnaire surveys, in-depth interviews, and expert evaluations were conducted. Based on these results, the 5 processes were organized into 20 work areas and 45 detailed work elements, which were divided into 31 essential tasks and 14 optional tasks to design the final version of an institutional history compilation model for public institutions. The model of this study can be used in public institutions to carry out tasks regarding history compilation and can also be used to establish schedules and plans by identifying overall tasks to be performed in the preparation stage for history compilation.

• Journal of the Ergonomics Society of Korea
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• v.36 no.5
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• pp.545-557
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• 2017

Objective: The aim of this study was to find risk factors in cultivating ginseng based on risk assessments and suggest safety measures for main risks. Background: Safety education and training is one of the practical and effective methods to prevent occupational accidents and injuries. In agricultural sector, there are few contents of safety education as compared to other industries. Especially, farm work has different cultivation characteristics according to the crops, so it needs special education materials for each crop. Among the various types of crops, ginseng contains various risk factors due to its long cultivating period and unique environment. Therefore, safety education material specified for ginseng is necessary to improve ginseng farmers' safety. Method: Risk assessment for cultivating tasks of ginseng was carried out through data obtained from various methods (site survey, interview, literature survey). To improve objectivity, the risk assessment was applied with 3-criteria (researcher estimate, interview, previous research results). Finally, the three high-risk tasks were selected and safety measures for those tasks were provided. Results: Three tasks, such as 'Mounting, maintenance and removing supports', 'Pest control' and 'Harvest', were selected as risky tasks among total tasks. (1) In 'Mounting' and maintenance and removing supports', the farmers found to be exposed to the risks of musculoskeletal disorders and accidents related to operating the tablet machine. (2) In 'Pest control', agrichemical poisoning, musculoskeletal disorders and hyperthermia were main risks. Finally, (3) In 'Harvest', the farmers are mainly exposed to the possibility of accidents of agricultural machines and risks of musculoskeletal disorders. Thus, it needs to apply appropriate safety measures to those risky tasks, such as safety guidelines, convenience equipment, protective kit, and so on. Conclusion: This study can be used as basic data for agricultural safety and expected that it would be useful for further study. In addition, the results of the research will be produced in the form of animation, which will enhance the safety consciousness for aged farmers. Application: The result of this study can be used in developing safety education materials for ginseng farmers which is essential to prevent occupational accidents and injuries among ginseng farmers.

• The Mathematical Education
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• v.63 no.3
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• pp.527-547
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• 2024

It is difficult for mathematics teachers to develop mathematical modeling tasks and implement mathematical modeling lessons for their students. These difficulties serve as a reason why mathematical modeling lessons are not implemented well in school mathematics. In this study, we aimed to examine how preservice mathematics teachers (PMTs) modify mathematical modeling tasks in mathematics textbooks as a way to develop mathematical modeling tasks and how they implement the mathematical modeling lesson. In particular, we focused on how the openness and reality reflected in the task and the mathematical modeling process change as PMTs modify the tasks. We collected data through PMTs' evaluation reports on analyzing textbook tasks, task modification, lesson plans and implementations, peer evaluation, and self-evaluation. Then, we analyzed these data according to the case analysis process. The findings revealed that when PMTs modified the textbook task, they focused on and improved the openness and the defining variables and the model stages of mathematical modeling process. However, when PMTs implemented lesson, the openness and the defining variables and the model stages of mathematical modeling process were restricted again. PMTs did not focus on other stages. Based on these results, the theoretical and practical implications of the study was discussed.