• Proceedings of the Korea Society for Industrial Systems Conference
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• 2001.05a
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• pp.129-133
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• 2001

Accelerated life test is a viable method for identifying failure modes, incorporating design changes on an on-going basis during the early stages of automotive development program. The information from tests at high stress levels is extrapolated to obtain estimate of life at normal stress levels. This paper presents a practical method for accelerated life test to achieve a specified accuracy in estimating life at a design stress. Recommended and optimum plan are presented and the plans are illustrated with a simulated test data for the automotive power element example.

• Journal of Home Health Care Nursing
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• v.30 no.3
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• pp.276-286
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• 2023

Purpose: This study aimed to assess the effect of palliative care practical training for nursing students. Methods: This quasi-experimental study included 38 third-grade nursing students form one university. Practical training, develooed by experts, was provided for 2 weeks (90 h) in a palliative care hospital. Participants received education on palliative care but no clinical practical experience. Collected data were analyzed using independent t-test, χ² test and paired t-test using the WIN SPSS 23.0 program. Results: Students showed significant pretest-posttest differences in attitude toward death (t=-2.43, p=.021), end-of-life nursing attitude (t=3.90, p=<.001) and spiritual nursing competency (t=3.82, p=.001). Conclusion: The study results revealed that palliative care practical training was an effective learning method to improve nursing attitude, toward death, end-of-life nursing attitude and spiritual nursing competency. Further studied are needed to assess the effects of various education programs of palliative care.

• Journal of Technologic Dentistry
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• v.36 no.1
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• pp.27-37
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• 2014

Purpose: The purpose of this study is to investigate the improvement measure of dental technicians practical examination system. Methods: The subjects in this study were 290 dental technicians who were self-written questionnaire. The results were analyzed by SPSS 16.0. The collected data was analyzed by frequency and chi-square test. Results: Dental technician practical exam feasibility of survey were largely negative views. Articulators work required in practical exam as a tool used (28.7%), electric wax carver (19.5%), heating clear (17.8%), handpiece (16.2%) had a response. Dental Technician positions in accordance with practical exam in comparison to satisfaction, the professor is satisfied, but the clinical dental technicians were generally dissatisfied (p<0.05). Conclusion: Based on the results of this study, Current is necessary to analyze the practical test. It also should be compared with foreign institutions. Long-term and short-term improvement examination system that can be applied to the improvement of the dental technician to draw practical test it is necessary to improve the system.

• Journal of the Korea Society of Computer and Information
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• v.25 no.10
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• pp.95-102
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• 2020

This study was conducted to identify differences in Practical Performance of Nurse between Comprehensive Nursing Care Service Ward and General Service Ward. The subjects of this study were 185 nurses from S hospital, Comprehensive Nursing Care service operating hospital, located in D city. This study used the measuring tool "Nursing Professionalism Scale" developed by Yoon etc(2005) and "Practical Performance Scale" developed by Lee etc(2005). The collected data were analyzed by descriptive statistics, t-test, ANOVA, Duncan test, Pearson's correlation coefficients and multiple regression using SPSS 20.0 version. As a result of the study, Comprehensive Nursing Care Service Ward nurses have higher Nursing Professionalism than General Service Ward nurses. Also, Nursing Professionalism has an effect on improvement of Practical Performance on Both ward nurses. Therefore, the study can be applied to improve the Practical Performance of the nurses through the establishment of the Nursing Professionalism.

• Journal of Digital Convergence
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• v.18 no.7
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• pp.279-287
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• 2020

For effective clinical practice education, this study was conducted to find out the effects of learning practical subjects on the core competency and satisfaction level of clinical practice on nursing students. The research subjects were divided into groups that conducted four core nursing education classes eight hours a day for two weeks, and groups that received traditional lecture-oriented education, and a questionnaire was prepared and reported by themselves after 15 weeks of clinical practice. The collected data was analyzed using frequency, percentage, mean and standard deviation, chi-square test, and t-test using the SPSS 21.0 program. The findings supported the hypotheses in critical thinking propensity and clinical practice satisfaction, and the hypotheses in leadership, problem-solving and communication skills were rejected. The results of this study confirmed that practical training for strengthening core practical skills has a positive effect on the critical thinking tendency and clinical practice satisfaction of nursing students. Therefore, it can be used as an effective practical training arbitration in nursing education.

• Journal of Korean Home Economics Education Association
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• v.15 no.4
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• pp.23-35
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• 2003

The purpose of this research is to analyse the composition of theories and practical activities in clothing and textiles in Technologyㆍ Home economics textbooks in the 7th National Curriculum and find out learning requirement of students in the area. For this research, a survey was conducted using questionnaires with 280 high school students living in Daegu and the rate of response was 78.9%. The results of this study are as follows. 1. After analysing the curriculum of Practical Arts subject in elementary school and Technology´ Home Economics subject in secondary school, we could find out that more emphasis is put on practical activities in elementary school and high school. On the other hand, theories are considered more important in middle school. 2. Students have similar preference both for theories and for practical activities as a way of learning in class and show positive responses to practical activities unless they´re giving too much pressure as a part of performance test. 3. According to their learning requirement. several teaching-learning contents in clothing and textiles in Technology Home economics are selected such as materials,. clothes designs, how to set dressed well, how to make a reasonable purchase on clothes, and the process of manufacturing various clothes, etc. Therefore it would be desirable to provide the students with the learning opportunity to the extent where even the students who haven´t chosen the selected-advanced course can take part in class actively.

• Transactions of the Korean Society of Automotive Engineers
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• v.12 no.1
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• pp.106-113
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• 2004

Most of mechanical structures are composed of many substructures connected to one another by various types of mechanical joints. In automotive engineering, it is important to study these connected structures under various dynamic forces for the evaluations of fatigue life and stress concentration exactly. In this study, the dynamic response of vehicle structure to external forces is classified an inverse problem involving strains from the experiment and the analysis. The practical dynamic forces are determined by the combination of the analytical and experimental method with analyzed strain by quasi-static finite element analysis under unit force and with measured strain by a strain gage under driving load, respectively. In a stressed body, inter-molecular chemical bonds are failed beyond the certain magnitude. The failure of molecular structure in material is considered as a time process of which rate is determined by mechanical stress. That is, the failure of inter-molecular chemical bonds is the fatigue lift of material. This kinetic concept is expressed as lethargy coefficient. And S-N curve is obtained with the lethargy coefficient from quasi-static tensile test. Equivalent practical dynamic force is obtained from the identification of practical dynamic force for one loading point. Using the practical dynamic force and S-N curve, fatigue life of a window pillar is analyzed with FEM under the identified force by the procedure of above mentioned.

• Structural Engineering and Mechanics
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• v.46 no.3
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• pp.433-445
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• 2013

Vibration-based structural identification has become an important tool for structural health monitoring and safety evaluation. However, various kinds of uncertainties (e.g., observation noise) involved in the field test data obstruct automation system identification for accurate and fast structural safety evaluation. A practical way including a data preprocessing procedure and a vector backward auto-regressive (VBAR) method has been investigated for practical bridge identification. The data preprocessing procedure serves to improve the data quality, which consists of multi-level uncertainty mitigation techniques. The VBAR method provides a determinative way to automatically distinguish structural modes from extraneous modes arising from uncertainty. Ambient test data of a cantilever beam is investigated to demonstrate how the proposed method automatically interprets vibration data for structural modal estimation. Especially, structural identification of a truss bridge using field test data is also performed to study the effectiveness of the proposed method for real bridge identification.

• Journal of The Korean Digital Architecture Interior Association
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• v.11 no.3
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• pp.109-113
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• 2011

This study is suggest the test system for BIM(Building Information Modeling) qualification. And this study is the field-based BIM educational program with the acquisition of the qualifying certificates. Since field-based BIM and Curriculum(of University and Junior College) are highly linked to the actual practical affairs, the learning connected to the practical affairs out of the teaching focused on BIM modeling would satisfy students, and it would make the acquisition of the certificates which determinate the capability of the practical affairs. Thus teachers should guide students to get the certificates thoroughly, make them understand the importance of the acquisition of the certificates.

• Smart Structures and Systems
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• v.15 no.1
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• pp.209-225
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• 2015

Compared to ambient vibration testing, impact testing has the merit to extract not only structural modal parameters but also structural flexibility. Therefore, structural deflections under any static load can be predicted from the identified results of the impact test data. In this article, a signal processing procedure for structural flexibility identification is first presented. Especially, practical issues in applying the proposed procedure for structural flexibility identification are investigated, which include sensitivity analyses of three pre-defined parameters required in the data pre-processing stage to investigate how they affect the accuracy of the identified structural flexibility. Finally, multiple-reference impact test data of a three-span reinforced concrete T-beam bridge are simulated by the FE analysis, and they are used as a benchmark structure to investigate the practical issues in the proposed signal processing procedure for structural flexibility identification.