• Title/Summary/Keyword: aged wood

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Testing the Biobehavioral Family Model in Understanding the Eating Problems of Adolescent Girls (여고생의 섭식문제 구조모형 구축: 생체행동가족모형의 적용)

  • Park, Ji-Young;Baek, Su-Yon;Kim, Hee-Soon;Lim, Jung-Ha;Kim, Tae-Hyung
    • Child Health Nursing Research
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    • v.19 no.3
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    • pp.228-237
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    • 2013
  • Purpose: This study was done to test a hypothesized model, the Biobehavioral Family Model (BBFM), on the relationship of family emotional climate, security of parent-child relationship, depression symptoms and eating problems in adolescent girls, to further understanding of eating problems in this population. Methods: With a convenience sample of 647 girls, aged 15 to 18, a self-report survey was conducted which included the Korean form of the Eating Attitude Test (EAT-26) to assess eating problems. Results: The estimated results of the structural equation modeling indicated a good fit of data to the hypothesized model proposing that family emotional climate and security of parent-child relationship were associated with the risk of eating problems by way of depression symptoms. That is, negative family emotional climate and insecure parent-child relationship increased the risk of eating problems indirectly by way of depression symptoms. Conclusion: The findings are consistent with the BBFM, which suggests a psychobiologic influence of specific family processes on children's stress-sensitive physical disease activity by way of depression symptoms. Therefore, the applicability of the BBFM for understanding adolescent girls' eating problems is supported. The psychobiologic pathways from depression to eating pathology should be addressed in future studies.

The Post Occupancy Evaluation of the Universal Design Project on Geonjisan Forest Trail Jeonju City, South Korea (전주시 건지산 숲길 Universal Design 사업 이용후 평가)

  • Park, Sun-A;Lee, Myung-Woo
    • Journal of the Korean Institute of Landscape Architecture
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    • v.40 no.6
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    • pp.60-69
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    • 2012
  • The project on Geonjisan Universal Design Forest Trail in Jeonju City was designed and constructed by an NGO called 'Jeonbuk Forest for Life' which was a winner for the '2008 Open Competition by the 'Committee for Greening Society' established in Korea Land Corporation. The purpose of this study is to evaluate the design satisfaction of UD forest trail. Post Occupancy Evaluation (POE) method was applied to measure the user satisfaction and the total number of users. The main result of the study were as follows: the major users of the Geonjisan UD forest trail were people aged over 60 years old(37%) and the main purpose of trail usage were to 'walk and rest'(51.5%) and to 'exercise and rehabilitation' (40.6%). Furthermore, the overall user rating for the UD forest trail design was "satisfied"(3.91 point in 5-point Likert Scale). The three most influencing factors of the overall user satisfaction were facility management, user conflict, and trail width and slope. About forty-five people were found to be End-user in the UD forest trail while six people were found as End-user in non-UD trails. Most importantly, the number of End-user observed on the UD forest trail was greater than the number found in non-UD forest trail. The result implies that the UD forest trail attracts more End-users and provides opportunity for gathering and interaction with the other users. Moreover, the satisfaction rate for the UD forest trail landscape is found to be high in Likert scale, which we can assume that the well-grown existing trees and topographic features as well as appropriately designed wood-paths influence the high satisfaction rate of the users. The POE of UD forest trail revealed the importance of universal design concept due to its convenient uses of the handicapped, old, weak, pregnant woman or children.

Behavior of AKD in AKD-sized Paper by Heating Treatment During Ageing (AKD 사이즈 처리한 종이의 저장중 가열처리에 의한 AKD의 거동)

  • Shin, Young-Doo;Seo, Won-Sung;Cho, Nam-Seok
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.39 no.1 s.119
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    • pp.16-24
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    • 2007
  • This study was performed to investigate the reaction between alkylketene dimer(AKD) and cellulose molecules in AKD-sized paper sheet. AKD was added to highly beaten($80{\pm}3^{\circ}SR$) SwBKP(ca. 0.8% on pulp) in order to have much AKD retention in the paper sheet. This AKD-sized paper sheet was aged at different temperatures, $60^{\circ}C,\;80^{\circ}C,\;105^{\circ}C\;and\;125^{\circ}C$. Changes in FT-IR spectra of AKD in paper sheet during the ageing were measured. In addition, sizing degrees of the AKD-sized paper sheet pretreated for 30 sec. at $105^{\circ}C$ were measured by HST size tester during the storage at different temperature. IR spectra of AKD-sized paper sheet preheated at $105^{\circ}C$ for 30 sec. showed unchanged spectra two absorption bands at $1849cm^{-1}\;and\;1722cm^{-1}$ which refer to the typical AKD IR bands. However, these typical AKD bands were gradually reduced with increasing ageing, completely disappeared after 6 hrs. and formed new absorption band at $1706cm^{-1}$, which refers to carbonyl stretching vibration of dialkylktone. Eventually the AKD molecule was hydrolyzed to diakylketone without formation of ${\beta}$-ketoester with cellulose in paper sheet. After 6 days ageing, a little amount of ${\beta}$-ketoester bands was identified in 6 or 7 days ageing, because of the absence of water due to long-term heating. The same tendency was observed at different ageing conditions. At the practical papermaking process, AKD reacts prevailing with water, and mostly seems to be hydrolyzed to dialkylketene. Concerned to the sizing development, AKD-sized paper sheet was shown no sizing development at the initial stage of ageing at $60^{\circ}C$ after heating treatment at $105^{\circ}C$ for 30 sec., and gradually increased the sizing degree with increasing ageing, such as Hercules Sizing Tester (HST) 130 see for 12 hr, HST 300 sec. for 3 days and HST 400 sec. for 5 days. It was concluded that hydrolyzed AKD could contributed to the sizing development of the paper sheet.