• Journal of Magnetics
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• 제19권4호
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• pp.404-410
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• 2014

This paper considers the design and performance evaluation of interior permanent magnet synchronous motors (IPMSMs). The initial design such as the sizing and shape design of the stator and rotor is performed for a given load condition. In particular, the equivalent magnetic circuit (EMC) is employed both to design the mechanical parameters of the rotor while considering nonlinear magnetic saturation effect and to analyze the magnetic characteristics of the air-gap of the motor. The designed motor is manufactured and tested to confirm the validity of the design processes and simulated results.

• 컴퓨터교육학회논문지
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• 제12권3호
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• pp.1-10
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• 2009

현행 대학수학능력시험 직업탐구영역 정보 컴퓨터 관련 교과들의 '탐구' 영역의 평가준거는 4개로 제시되어 있으며 구체성이 떨어져 '탐구' 영역에 적합한 문항 개발이 어렵다. 본 연구에서는 직업탐구영역의 정보 컴퓨터 관련 교과들의 '탐구' 영역에 대한 평가준거를 개발하고자 하였다. 국내외의 정보 컴퓨터 관련 교과들의 대학입시 문항과 대학의 정보 컴퓨터 관련 학과의 교육과정 이수를 위한 수행능력을 분석하여 평가준거를 설계하였고, 전문가 집단의 타당도를 이용해 수정하였다. '탐구' 영역의 평가 준거를 '분석', '종합', '평가' 영역으로 구분하였다. '분석' 영역에 적합한 평가준거는 3개, '종합' 영역은6개, '평가' 영역은 2개로 선정하고, 이에 적합한 예시 평가 도구를 함께 제시하였다.

• Human Ecology Research
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• 제56권1호
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• pp.33-54
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• 2018

This study devised an instruction that applies the content factors of Family Life Planning to backward design by exploring the fundamental concepts of backward design and the structure of developing a systematic instruction. Furthermore, it was conducted to improve the developed instruction by examining its validity with the help of experts and to find the method of applying it to the curriculum. The lesson design of this study was as follows. 1) Making a unit outline, 2) Identifying the expected results (Shaping the objectives), 3) Deciding acceptable evidence (Planning evaluation), 4) Making a detailed blueprint for class tasks, 5) Planning learning experience, 6) Making a learning experience plan per time, 7) Checking the lesson design. Second, experts participated in this study for the internal validity test about the process of the systematic lesson development of Family Life Design based on a backward design. The results were shown to be valid because the average was 3.7 out of a perfect score 4 and the CVI of all was over 0.9. The result of the IRA was also score 1, meaning that most of the experts agreed on the results of the test. The details of the lesson design were clear at every stage and the tasks and the results of each stage were specific. This study included most of the necessary stages for a backward design.

• 부모자녀건강학회지
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• 제5권1호
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• pp.90-100
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• 2002

Web sites on the internet are excellent information resources for the consumers to gain health care knowledge. Especially web sites related to child-care more increase recently. But a concern has emerged for the quality of contents contained on the child-care web sites. Lack of evaluation criteria have led to inaccurate and misleading child-care related publications on the Internet. For evaluating the quality and reliability of child-care related information on the Web, rating tool should be provided and developed. So, this article reviewed and investigated the elements to evaluate child-care sites on the internet. On the basis of the review of articles and the validity test about the contents, 16 preliminary items including purpose, contents, authority, feedback, design developed. Through the pilot study that apply the preliminary evaluating criteria to 20 evaluating criteria for child-care web sites developed. This evaluating criteria have 24 items and that were categorized to purpose(2 items), detail of contents(16 items), authority(2 items), feedback(2 items), design(4 items). The result of this study suggest that the evaluation criteria for child-care web sites may be useful for evaluating the quality of child-care web sites.

• 한국실내디자인학회논문집
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• 제22권4호
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• pp.113-120
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• 2013

This study aims to determine adolescents' emotional response and preferences for varying interior designs of learning spaces available at community facilities in apartment across Seoul. In particular, the subjects have been fragmented by gender and age for comparative analysis of emotional responses across different demographics of adolescents. A survey on the preferred designs of learning spaces in community facilities revealed that 'elegant,' 'cheerful,' and 'temperate' are the three main emotional words selected for image tool development. Emotional assessment verified the validity of these terms. Between the two genders, adolescent males preferred 'temperate' images more while adolescent females preferred 'cheerful.' In terms of the design of learning space, adolescent females deemed the interior atmosphere and area space to be the most important factors, while adolescent males pointed to the color of furniture and lighting to be the most important. Such results imply that there is a clear difference of emotional response between adolescent males and females. The results also imply that different atmospheres and design priorities must be considered when designing gender-specific spaces.

• 한국의상디자인학회지
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• 제17권4호
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• pp.55-66
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• 2015

The objective of this study is to propose a method by which movement fitness can be evaluated using a three-dimensional virtual garment simulation program. To this end, five types of jean pants for men were evaluated on the program by setting the avatars to make particular movements to examine the level of pressure on each body part. To verify whether the clothing pressure measurement produces valid and reliable results, virtual garment simulation program was utilized. The results indicated that there were significant differences in the levels of pressure on body parts depending on the type of test garment and motion. In addition, the clothing pressure measurement results were in line with the appearance evaluation results suggested by a previous study. Based on this set of results, the nomological validity of the clothing pressure measurement program used in this study was verified. Moreover, we employed an appearance evaluation along with the clothing pressure measurement to verify the reliability of the program; there was a high correlation between clothing pressure measurements and appearance evaluation measurements, indicating that measuring clothing pressures may well compensate for the limitations of appearance evaluation. We expect the results of this study to make valuable contributions in facilitating the digitalization of the fashion industry. Furthermore, this study also is significant in that it has suggested 3D virtual fitting programs as a solution to the long-criticized problem related to the evaluation of movement fitness in existing virtual garment simulation programs.

• 상하수도학회지
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• 제26권2호
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• pp.191-199
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• 2012

Rainwater harvesting systems (RWHS), one of measures for on site rainwater management, have been promoted by laws, regulations and guidelines and have been increased. However, more evaluation of economic feasibility on RWHS is still needed due to seasonal imbalance of rainfall and little experiences and analysis on design and operation of RWHS. In this study, we investigated tank capacity of RWHS to secure economic validity considering catchment area and water demand, which is affected by building scale. Moreover, sensitivity analysis was performed to examine the effect of design factors, cost items and increase rate of water service charge on economic feasibility. The BCR (benefit cost ratio) is proportional to the increase in tank capacity. It is increased steeply in small tank capacity due to the effect of cost and, since then, gently in middle and large tank capacity. In case of 0.05 in the rate of tank volume to catchment area and 0.005 in water demand to catchment area, BCR was over one from the tank capacity of 160 $m^{3}$ taking into account of private benefits and from the tank capacity of 100 $m^{3}$ taking into account of private and public benefits. Sensitivity analysis shows that increase of water demand can improve BCR values with little cost so that it is needed to extend application of rainwater use and select a proper range of design factor. Decrease of construction and maintenance cost reduced the tank volume to secure economic validity. Finally, increase rate of water service charge had considerable impact on economic feasibility.

• 한국의류산업학회지
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• 제23권2호
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• pp.174-185
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• 2021

The purpose of the study is to establish sustainability evaluation items that can be applied to enhance clothing sustainability practice. The sustainability evaluation items related to clothing by product category, use, and disposal were derived through literature review. In order to evaluate the validity of the derived evaluation items, preliminary survey and two questionnaires were conducted for experts, and the importance and the possibility of change were measured. As a result, 39 evaluation items were constructed. Among the 39 evaluation items, 26 items related to the use and disposal were evaluated for 10 weeks in the 20s and 30s female consumers in terms of practice. The results of the study are as follows: First, items that have a high degree of importance and possibility of change are the items that can minimize resource saving, recycling, and the emission of harmful substances. Second, the participants' perceptions, attitudes, and outcomes of practicing the evaluation items of the use and disposal phase were proved to be positively affected, and the possibility of reducing resource saving and environmental impacts was proved. The clothing sustainability practice played a positive and developmental role in real life, while changing from small things to pursuing newness. The vagueness of sustainability was changed to specific perceptions and behaviors through the practice of the evaluation items.

• 한국가정과교육학회지
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• 제35권4호
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• pp.13-31
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• 2023

본 연구는 빠르게 변화하는 사회 속에서 청소년의 미래 사회에 대응하는 능력을 향상시키고자 가정교과와 진로교육을 유기적으로 연계한 중학교 가정교과연계 진로교육 프로그램을 개발하는 데 목적이 있다. 연구 절차는 ADDIE 모형에서 실행단계를 생략한 분석, 설계, 개발, 평가의 4단계로 진행하였다. 분석 단계에서는 가정교과와 진로교육을 유기적으로 연계한 단원과 내용을 파악하기 위해 관련 선행연구를 분석하였다. 설계 단계에서는 교과서 분석결과를 토대로 창업가정신을 함양하기 위해 디자인씽킹 단계에 따른 학습주제와 내용을 선정하고, 전체적인 프로그램 과정을 설계하였다. 개발 단계에서는 차시별 가정교과연계 진로교육 성취기준과 학습목표를 설정하였고, 총 8차시의 가정교과연계 진로교육 프로그램의 교수·학습과정안과 총 23개의 교수·학습 자료, 전문가 타당도 검증 설문지를 개발하였다. 평가 단계에서는 전문가 9인을 대상으로 개발된 프로그램에 대한 타당도 검증을 실시하였다. 개발된 프로그램은 프로그램 전반에 대한 평가를 거쳤으며, 타당도 지수(CVI)가 0.94로 프로그램에 대한 타당도를 검증받았다. 개발된 프로그램을 통해 가정교과가 청소년의 창업가정신 함양에 중요한 역할을 해 나가도록 돕는 데 의의가 있으며, 창업가정신이 스스로 미래를 설계하고 자신의 의지로 삶을 선택하여 도전하도록 하므로 창업가정신을 함양한다는 것은 주체적이고 자기주도적인 삶을 영위하도록 돕는 가정교과의 목표와 맥을 같이 한다는 점에서 개발된 프로그램으로 가정교과의 목표를 함께 달성해 나가길 기대한다.

• Structural Engineering and Mechanics
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• 제11권6호
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• pp.651-662
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• 2001

In order to investigate the seismic behavior and seismic design methods in the transverse direction of a shield tunnel, a series of model shaking table tests and a two-dimensional finite element dynamic analysis on the tests are carried out. Two kinds of static analytical methods based on ground-tunnel composite finite element model and beam-spring element model are proposed, and the validity of the static analyses is verified by model shaking table tests. The investigation concerns the dynamic response behavior of a tunnel and the ground, the interaction between the tunnel and ground, and an evaluation of different seismic design methods. Results of the investigation indicate that the shield tunnel follows the surrounding ground in displacement and dynamic characteristics in the transverse direction; also, the static analytical methods proposed by the authors can be used directly as the seismic design methods in the transverse direction of a shield tunnel.