• Title/Summary/Keyword: Preliminary research

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Development of a Family Resilience Program for Families of Children with Attention-Deficit Hyperactivity Disorder: A Preliminary Study (주의력결핍 과잉행동장애 아동 가족을 위한 가족탄력성 프로그램 개발: 예비연구)

  • Lee, Eun-Hee
    • The Journal of the Korea Contents Association
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    • v.21 no.9
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    • pp.723-741
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    • 2021

  • The purpose of this study is to develop a family resilience program for families of children with ADHD. For this purpose, a preliminary program was developed as a pre-program development stage and its effectiveness was evaluated. To develop a preliminary program, a prior study was reviewed before developing the program, which was carried out. The program was conducted after recruiting seven mothers of children diagnosed with ADHD. It was operated for a total of eight sessions, two times a week, for 120 minutes. A single system design was designed to assess the effectiveness of the developed Family Resilience program. Then, the Family Resilience goals of the individuals set by the research participants were measured. The results of the study showed a slight increase in scores for all participants in the program. By discussing the effects, limitations and suggestions of the developed preliminary program, we hope that a family resilience program for families of children with ADHD will be developed based on this preliminary program research.

  • https://doi.org/10.5392/JKCA.2021.21.09.723 인용 PDF KSCI HTML

A preliminary study on the construction of 4.2MV IVG for the UHV dielectric test (초고압 절연시험을 위한 4.2MV 충격전압발생장치의 구축방안 검토)

  • Lee, J.G.;Shin, Y.J.;Heo, J.C.;Moon, I.W.;Kim, M.H.;Kang, Y.S.
    • Proceedings of the KIEE Conference
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    • 2003.07c
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    • pp.1750-1752
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    • 2003

  • This paper, as a preliminary study, presents the important consideration in laboratory planning and designing 4.2MV impulse voltage generator(IVG), which enable to test and evaluate the UHV dielectric performance of power electric apparatus up to 765kv-class. To fix and confirm the kinds of loads and their capacities to be tested by KERI hereafter, wide investigation and an analysis of test objects, especially heavy electric apparatus of Korea, according to their ratings and test voltages have been conducted. With the special consideration concerning other matters in designing of 4.2MV IVG have been described with the practical examples and references.

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A Non-Cirucular Contact Arc Model for Temper Rolling

  • Y.L. Liu;Lee, W.H.;Cho, K.J.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 1999.08a
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    • pp.293-300
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    • 1999

  • A mathematical model for the analysis of roll gap phenomena in strip temper rolling process is described. The mechanical peculiarities of temper rolling process, such as high friction value and non-circular contact arc, low reduction and non-negligible entry and exit elastic zones as well as central restricted deformation (preliminary displacement or sticking) zone etc., are all taken into account. The deformation of work rolls is calculated with the influence function method and arbitrary contact arc shape is permitted. The strip deformation is modeled by slab method and the entry and exit elastic deformation zones are included. The restricted deformation zone near the neutral point is also considered. The concept and the calculation method of limiting preliminary displacement are used to determine the length of the central restricted deformation zone. The comparison of the model results with the measured mill data is also made.

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