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Jang, Min-Jun,Kim, Sun-Hee,Lee, Young-Geun,Woo Sang-Byock,Yoon, Soon-Jong 한국복합신소재구조학회 2014 복합신소재구조학회논문집 Vol.5 No.1
Pultruded glass fiber reinforced polymeric plastic (PFRP) and FRP member manufactured by sheet molding compound (SMC) have superior mechanical and physical properties compared with those of conventional structural materials. Since FRP has an excellent corrosion-resistance and high specific strength and stiffness, the FRP material may be highly appreciated for the development of floating-type photovoltaic (PV) power generation system. In this paper, advanced floating PV generation system made of PFRP and SMC is designed. In the design, it includes tracking solar altitude by tilting photovoltaic arrays and tracking solar azimuth by spinning structures. Moreover, the results of the finite element analysis (FEA) are presented to confirm stability of entire structure under the external loads. Additionally, installation procedure and mooring systems in the Hap-Cheon Dam are discussed and the measurement of strain under the actual circumstances is conducted for assuring stability of actually installed structures. Finally, by comparison with allowable stress, appropriate safety of structure is confirmed to operate the system.
SSS1 gene may improve the eating quality by changing the starch composition in rice grain
Hye-Jung Lee,Moo-Geun Jee,Me-Sun Kim,Marjohn Nino,Dae-Won Jang,Mingmao Sun,Sailila E. Abdula,Illsup Nou,Kwon-Kyoo Kang,Yong-Gu Cho 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
An increasing preference for good eating quality of rice among consumers has become one of the important considerations in rice breeding. Amylose content of starch is one of the important factors of rice eating quality. Amylose composition is determined by the relative activity of soluble starch synthase (SSS) and granule-bound starch synthase (GBSS). This study focuses on modifying the expression of SSS1 gene which is responsible for amylopectin and amylose synthesis in rice by using RNA interference (RNAi) and antisense technology. The transgenic rice plants showed various amylose content (9-17%) in rice seed. Candidate rice lines were selected according to PCR, RNA expression and amylose contents analyses. A semi-quantitative RT-PCR was carried out to determine the expression level of SSS1 gene at several time points after the flowering of transgenic plants. Downregulation of SSS1 gene in transgenic rices was evident in the decreasing expression in rice grains over time. Accordingly, SEM micrographs analysis revealed uniform size with smooth curves starch granules in downregulation rice lines, in contrast with the non-uniform granules in wild type.
Analysis of 2010s Research Trends in Research on Agro-Healing in South Korea
Sun Jin Jeong,Eun Ha Yoo,Jae Soon Kim,Hye Sook Jang,Geun Woo Lee 인간식물환경학회 2020 인간식물환경학회지 Vol.23 No.3
Background and objective: Agro-healing is crucial with urban farming in the domestic. It is beyond the conventional agriculture. This study was carried out to assess the 2010s researches on domestic agro-healing and predict the future direction of agro-healing development. Methods: Among the articles published from 2010 to 2018, we collected some articles by searching keywords including agro-healing, garden activity, gardening, horticultural activity, horticultural program, horticultural therapy, plant effect, plant environment, plant growing program, plant impact, social gardening, urban agriculture and vegetable garden activity, selected 83 articles that were evaluated in advance, and analyzed by frequency analysis, t-test, and one-way ANOVA with SPSS 20.0. Results: Agro-healing journal articles were published the most in 2010, and have declined since then. In the classification according to the academic society, most of the journal articles were published by the Society for People, Plants, and Environment. The main targets of domestic agro-healing related to activities and programs were preschoolers, children and adolescents, accounting for 52.4% of the total. By the characteristics of the subjects, agro-healing programs and studies were conducted with special participants who needed special care compared to the general participants. The dependent variables were classified into six areas according to their attributes and the share of psychological and emotional areas was highest (42.6%) among them. In terms of the composition of the program, the share of those with 9-12 sessions was highest (36.7%) and the share of those with more than 20 participants was also highest (39.8%). Conclusion: It is recommended to operate agro-healing programs or industries focusing on the socially disadvantaged including those who have special needs or the underprivileged, but in order to create income for farms and expand the demand for agro-healing, it will be necessary to spread the perception that anyone without any physical or emotional issue can be the targets of and experience agro-healing. To meet the different needs of targets of agro-healing, it will be necessary to conduct objective and practical studies on broader areas and in the process the healing functions of agriculture and the strength of agro-healing needs to be further highlighted.
Jang, Yong Hyun,Hong, Nam-Soo,Moon, Sun Young,Eun, Dong Hyuk,Lee, Won Kee,Chi, Seong Geun,Kim, Jun Young,Lee, Weon Ju,Lee, Seok-Jong,Kim, Do Won S. Karger AG 2017 Dermatology Vol.233 No.2
<P>Background: In alopecia totalis (AT) and alopecia universalis (AU), the chance of full hair regrowth is known to be less than 10%. However, this information is based on a few older studies conducted in the 1950s and 1960s. Objective: We investigated the current long-term prognosis of individuals with AT/AU. Methods: A retrospective chart review was performed in patients with AT/AU between 1994 and 2005. Outcome data were collected by reviewing outpatient clinical files or by phone interviews. Finally, the long-term assessment of 70 patients with valid outcome data was performed. Results: Twelve out of 70 patients with AT/AU (17.1%) had complete hair regrowth. Five out of 24 patients with AT (20.8%) showed complete hair regrowth, and 7 of 46 patients with AU (15.2%) achieved complete regrowth. Seventeen out of 70 patients with AT/AU (24.2%) reported hair regrowth greater than or equal to 90%. Thirty patients with AU (65.2%) remained in an alopecic state without improvement, while 5 patients with AT (20.8%) showed no hair regrowth. Conclusion: Our results suggest that the long-term prognosis of AT/AU is more favorable than previously thought. However, the clinical burden of AT/AU is still substantial. (C) 2017 S. Karger AG, Basel</P>
Analysis of Preference of Environmental Image for the Increase and Promotion of Rose Consumption
Sun Jin Jeong,Gyung Mee Gim,Jae Soon Kim,Hye Sook Jang,Geun Woo Lee 인간식물환경학회 2019 인간식물환경학회지 Vol.22 No.1
The purpose of this study was to investigate the preference of plant environmental images for flower plant consumption. This study came up with a total of four treatments including one image without plants and three images with flower plants (three roses, rose gift, rose garden). We conducted a survey on 104 men and women through the Google (online) survey and analyzed the data. The preference was higher with statistical significance for environmental images with plants than the image without plants. The preference for environmental images of roses was highest in the order of rose gift > rose garden > three roses. As a result of the cross-tabulation analysis, it was found that there was a significant difference in the preference for environmental images of roses according to general characteristics such as educational background and residence type. In terms of educational background, 2-year college graduates showed higher preference for the three environmental images of roses with statistical significance compared to high school graduates, university graduates and masters or higher. As a result of determining the difference in preference according to residential types, residents of multiplex houses showed higher preference for the “rose garden” environment image than residents of detached houses (p < .05). As a result of examining stress and depression in everyday life, 48.1% (the highest) of the respondents answered that they were “under daily stress” and 48.1% (the highest) of the respondents claimed not to be “under much depression”. This study investigated the difference in preference according to demographic characteristics and existence of plants, preference in environmental images using roses, correlation with daily stress and depression, and utility of publicity using photographic images of plants.