• Title/Summary/Keyword: Seon Ecology

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Identification of Natural dyes used in 16th pink Dallryeong (Official's robe in Joseon Dynasty) Excavated from Cheonan, Chungnam (충남 천안시 출토 16세기 분홍 단령에 사용된 염재 동정)

  • Chae, Jeongmin;Ryu, Hyo-Seon
    • Journal of Conservation Science
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    • v.31 no.3
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    • pp.299-308
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    • 2015
  • Aim of this study is to identify dyestuff of the Dallryeong(official's robe in Joseon Dynasty, 16th century) excavated from Yuryang-dong, Cheonan, in 1996. For this purpose, extracted dyestuffs from Dallryeong fabric and from natural dyestuffs for red color(safflower, Sapanwood, Madder) which are presumed to have been used in the Dallryeong, are analyzed and compared by high performance liquid chromatography(HPLC). As a result, HPLC chromatogram of extracts of the Dallryeong's dyestuff and safflower are showed a peak at 17.5 minutes. The UV/Vis spectra of the samples are showed the maximum absorption wavelength at 519nm. This result is identical with the analysis of the previous studies on red dyestuff of safflower. In addition, the analysis of Mass Spectrometry(MS) showed the identical result of the peak with m/z 910. Following these results, excavated pink Dallryeong were considered to have been dyed with safflower.

Design for Gwangjang-dong Neighbourhood Park in Gwangjin-gu, Seoul (서울 광진구 광장동 기능 복합적 근린공원 설계)

  • Lee, Gwan-Gyu;Han, Seon-A
    • Journal of the Korean Institute of Landscape Architecture
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    • v.34 no.4 s.117
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    • pp.61-68
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    • 2006
  • A park will soon be developed in an area of Gwangjang-dong, Gwangjin-gu. The place has been a patch of green space for years, isolated by driveways and apartment complexes and abandoned. This article describes plans to infuse the abandoned green space with history, ecology, culture, and sports. The facilities that are to be constructed in and around the green space are positioned to take into account the path of the sun and the location of the curvilinear green space axis. The cultural space is planned as a centerpiece of the park, linked with the sports facilities. The overall framework is arranged in harmony with nearby elementary schools, parks, public facilities, athletic facilities, parking lots, and apartment complexes. The themed circulation route was constructed according to the environmental conditions and the spatial plan. In addition, the historical space is planned to work in close conjunction with the cultural space, and the streets and pedestrian pathways have characters of their own. The established contour lines will be carefully preserved, and an ecological pond will. The facilities, such as the outdoor performance stage, the outdoor art gallery, the Monument of Wind represented by a sail, and the pedestrian bridge in memory of Acha-sansung, are positioned for spatial balance and to provide a nexus. The bamboo forest, designed to foster the experience of sound effects, the architectural thematic plants, and the ecological pond are positioned to connect to each other around the greenspace axis. The main facilities are the outdoor theater, the bamboo forest, the Acha-sansung bridge, the Monument of Wind, the ecological pond, the four-season flower garden, parking lots, playgrounds, circulatory athletic pathways, and the tennis court.

Family Life Prospect of the Middle-Aged and Its Implications for Family Policy toward Centenarian Society (중년기 기혼남녀의 100세 사회 가족생활 전망과 가족정책에의 함의점)

  • Cho, Hee-Keum;Kim, Seon-Mi;Lee, Seung Mee;Sung, Miai;Chin, Meejung;Lee, Hyunah
    • Journal of Families and Better Life
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    • v.32 no.1
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    • pp.151-166
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    • 2014
  • This study attempted to explore how middle aged married men and women prospected a Centenarian society and what implications their prospect cast for family policy. We conducted focus group interviews with five groups in order to identify their subjective prospects on marital relations, parent-child relations, caregiving from family or institutions, and alternative living arrangement. From those interviews, we found that married men and women in their 40s, 50s, and 60s possessed ambivalent attitudes toward their marital relationship, either acknowledging an importance of marital relationship or accepting long-standing disrespectful marital relationship. They also had a dualistic perspective on parent-child relationship, accepting parental responsibility for children and even grand-children but maintaining low expectations for children. What they needed was age appropriate opportunities for work or leisure and better community services and facilities. These results showed that the middle-aged was concerned experiencing unprecedented family situations. They needed family life education and services in order to adapt to the Centenarian society. Since family policy has viewed this age group out of service target, programs and services have been underdeveloped for this group. Expecting a Centenarian society however, we need to expand the boundary of family policy and take a new perspective. We need to develop and implement marital education programs, community-based self-care services, and age-appropriated opportunities for work, leisure, and social relations.

The Hand of Spring/Fall Fabrics for 'Saenghwal Hanbok' (춘추용 생활한복 소재의 태에 관한 연구)

  • Son, Hyong-Nam;Ryu, Hyo-Seon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.31 no.9_10
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    • pp.1453-1464
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    • 2007
  • The purpose of this study is to examine the hand of spring/fall fabrics for 'Saenghwal Hanbok' on subjective hand, objective hand and the preference. In this study, 28 varieties of spring/fall fabrics such as cotton fabrics, synthetic fabrics, blended fabrics and a silk fabric for 'Saenghwal Hanbok' are used. To evaluate the subjective hand of fabrics, the holistic touch and preferences, 33 seven ranks' segmentic differential scale questions are developed with adjective pairs and are gathered by surveying experts on clothes. The mechanical properties, HV and THV of them are measured and calculated by KES-FB system. Through subjective hand, items could be classified into six hand expressions: 'bulky/extensibility', 'stiffness', 'feeling of weight', 'surface property', 'drapability' and 'moisture property'. Through mechanical properties, the results indicated that the character of cotton fabrics are slight flexible, tough, rough, uneven, a bit heavy, thick and low resilience on tensile and compression, and then those of synthetic fabrics, blended fabrics and a silk fabric are thin and light, smooth, flat and bulkless. In correlation on subjective evaluations and the preference for 'Saenghwal Hanbok', cotton fabrics mainly depend on 'surface property' and 'moisture property' and then synthetic fabrics, blended fabrics and a silk depend on 'bulky/extensibility' and 'surface property' In correlation on objective hand and the preference for 'Saenghwal Hanbok'. people aren't satisfied with low resilience. high stiffness and low drape.

Single Dose Oral Toxicity Test of Peucedani Radix in ICR Mice (ICR 마우스를 이용한 전호의 단회경구투여 독성 실험)

  • Kwon, Da-hye;Kim, Min-young;Hwangbo, Hyun;Ji, Seon-yeong;Park, Cheol;Choi, Yung-hyun;Hong, Su-hyun
    • The Journal of Internal Korean Medicine
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    • v.39 no.4
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    • pp.676-685
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    • 2018
  • Objectives: The aim of this study was to estimate the single oral toxicity of Peucedani Radix (PR) ethanol extracts. PR is one of the important herbs for removal of phlegm, the viscous turbid pathological product that can accumulate in the body and cause a variety of diseases. However, research on the pharmacologic toxicity of PR is lacking. Methods: In this study, PR was orally administered to 5-week-old male ICR mice at an oral dose of 2,000, 3,000, or 5,000 mg/kg. After a single-dose administration, the mortality and behavioral changes were observed daily and body weights were measured every two days. After 14 days, the organ weight, organ index, macroscopy, hematological analysis, and serum biochemistry analysis were determined. Results: No mortality, body weight changes, abnormal behavioral changes, or anatomical signs of toxicity were found. The organ weight, organ index, hematological analysis, and serum biochemistry analysis were also within the normal ranges. Conclusions: These results suggest that the 50% lethal dose of PR is more than 5,000 mg/kg. This could indicate that PR is a safe drug without acute toxicity and side effects.

The Hospital-Clothes Consumption Experience of Consumers According to Gender and Age -A Suggestion for the Improvement of Patient Gowns and Medical Supplies- (성별과 연령층에 따른 병.의원의 의류 제품 소비 경험 -환자복 및 의료보조용품 개선 방안 도출을 위해-)

  • Chung, Ihn-Hee;Lee, Yun-Jung;Ryu, Hyo-Seon;Choi, Hei-Sun;Chung, Hae-Won;Hong, Kyung-Hi;Park, Myung-Ja
    • Journal of the Korean Society of Clothing and Textiles
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    • v.34 no.1
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    • pp.138-152
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    • 2010
  • This study investigates the actual hospital-clothes consumption experience of consumers according to gender and age. An all age survey was conducted among male and female ex-patients in Korea nationally. From data collected during April and May 2009, a total of 513 responses were analyzed using descriptive statistics, chi-square analysis, two-way ANOVA, and MANOVA using SPSS 10.1.4. The results are as follows. The hospitalization ratio was higher in the male group than in the female group and increased with age. Many hospitalizations were taken to the department of orthopedics, internal treatment, obstetrics and gynecology, and surgery. The satisfaction with patient gowns was low regarding size, fabric touch, color and pattern, Psychological comfort, and holistic satisfaction, Specifically, the stiffness of the fabric, cheerless colors, and the limited number of sizes were the main complaints; size dissatisfaction was expressed strongly by females. About 35% of respondents showed a positive attitude to wear premium patient gowns. Various medical supplies were used and different items were utilized according to gender and age of patients. Uncomfortableness of medical supplies were highly related to laundry and fabric touch.

First Record on the Exotic Parasitoids Anisopteromalus apiovorus Rasplus (Hymenoptera: Pteromalidae) in Korea (외래기생봉 권연벌레살이금좀벌(국명신칭), Anisopteromalus apiovorus Rasplus (Hymenoptera: Pteromalidae)의 한국 내 신 분포 기록)

  • Cho, Bong-Kyun;Kim, Il-Kwon;Yoon, Chun-Sik;Kim, Hyoung-Gon;Cheong, Seon-Woo
    • Journal of Environmental Science International
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    • v.23 no.8
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    • pp.1463-1468
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    • 2014
  • An exotic parasitic wasp Anisopteromalus apiovorus of Pteromalidae was newly recorded in Korea. Specimens of this species have been collected in Gimhae of Korea since 2012. External morphology of this species was described in detail and diagnostic differences of this species from the related species and the host insect were also given. The funicle segments of female antennae are 1.2 to 1.5 times longer than those of Anisopteromalus calandrae, an sister species. Body color is gold-glossy black and with dense creamy-white hairs on the surface. This exotic species has been originated from the African continent including Democratic Republic of Congo and Cote d'Ivoire, and then intruded into other countries, for instance, Korea. This is the first distribution record of this species except the country of origin after original description as a new species. Although little is known about the life history or ecology of this species, we found that a new host of this small parasitic wasp is Lasioderma serricorne of coleoptera through present study. And this species possibly be a new agent of biological control for economic pests. It was presumed that the invasion of Anisopteromalus apiovorus into Korea was prior to November of 2012.

Effect of Temperature on the Nitrogen Fixation Activity of Root Nodules of Melilotus suaveolens (전동싸리 근류의 질소고정에 대한 온도의 영향)

  • Park, Tae-Gyu;Jong Suk Song;In Seon Kim;Wwang Soo Nho;Bong Bo Seo;Hwa Sook Chung;Jae Hong Pak;Seung Dal Song
    • The Korean Journal of Ecology
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    • v.18 no.3
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    • pp.323-332
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    • 1995
  • Effects of wintering and temperature on nitrogen fixation activity of nodules of Melilotus suaveolens Ledeb. grown in the field and growth chamber conditions were investigated. The biennial plants transfered to the growth chamber from winter field recovered the activity in 3 weeks of incubation and attained the maximum rate of $153{\mu}mol\;C_2H_4{\cdot}g$ fr wt $nodule^{-1}{\cdot}h^{-1}$ in 5 weeks. When root nodules which adapted to different temperatures, were pretreated with 10, 20 and $30^{\circ}C$ for 1 hour, and then transfered to $30^{\circ}C$, nitrogen fixation activity was promoted in the nodules exposed to lower field temperature ($12^{\circ}C$) with 1$0^{\circ}C$ pretreatment. M. suaveolens maintained nitrogen fixation activity in the wide range of temperatures, and was more tolerant to lower temperature than those of other woody leguminous plants, Diurnal changes of nodule activity showed increase with sunrise and decrease with sunset during spring and autumn, but the activity was inhibited during July and August because of high temperature with stron irradiation. Nitrogen fixation activity of annual plant appeared in mid-April, and showed two peaks (104 and 43 mol $C_2H_4{\cdot}g$ fr wt $nodule^{-1}{\cdot}h^{-1}$) in July and September, and then disappeared after October. Nitrogen fixation activity of biennial plant reappeared in mid-March after wintering and attained two peaks (102 and 82 ${\mu}mol\;C_2H_4{\cdot}g$ fr wt $nodule^{-1}{\cdot}h^{-1}$) in April and June of flowering period, and then disappeared after July due to plant withering by severe drought.

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Which Environmental Factors Caused Lammas Shoot Growth of Korean Red Pine?

  • Lee, Chang-Seok;Song, Hye-Gyung;Kim, Hye-Soo;Lee, Bit-Na-Ra;Pi, Jeong-Hoon;Cho, Yong-Chan;Seol, Eun-Sil;Oh, Woo-Seok;Park, Sung-Ae;Lee, Seon-Mi
    • Journal of Ecology and Environment
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    • v.30 no.1
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    • pp.101-105
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    • 2007
  • Lammas growth, a rare phenomenon for Korean red pine (Pinus densiflora), occurred in 2006. Lammas shoots showed higher frequency and longer length in Seoul's hotter urban center than in urban boundary or suburban forest sites. Frequency and length showed a close correlation with urbanization density and vegetation cover expressed in NDVI. Air temperature in the late summer of 2006 was more than $1^{\circ}C$ higher than an average year. Of the predominant environmental signals that modulate bud flush, only temperature changed significantly during the year. Differences in temperature between the urban centers, urban boundaries and suburban forests correlated with varying land-use density. The rise in temperature likely spurred lammas growth of the Korean red pine. Symptoms of climate change are being detected throughout the world, and its consequences will be clearer in the future. Considerate interest in the responses of ecological systems to the variable changes is required to prepare for unforeseeable crises. Monitoring of diverse ecological phenomena at Long Term Ecological Research sites could offer harbingers of change.

Variation of the Germination Responses to Temperature of Plantago asiatica Seed Population along Altitude in Mt. Chiri (지리산에서 고도에 따른 질경이(Plantago asiatica) 개체군의 온도에 대한 발아습성의 변이)

  • Lee, Ho-Joon;Kim, Yong-Ok;Jeon, Jae-Hee;Seong, Mi-Seon;Jang, Il-Do
    • The Korean Journal of Ecology
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    • v.17 no.4
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    • pp.485-499
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    • 1994
  • This study was focused on the effect of the altitude on the geographical variations of germination characteristics in the populations of Plantago asiatica L. distribute in Mt. Chiri. There was a significant difference among the 14 groups in the phenological pattern in relation to altitudes. When the altitude becomes higher, the thermal time which was required for 10 to 80% germination rate showed higher and wider distribution. On the other hand, the germination response of increasing temperature (IT) and secreasing temperature (DT) regime was classified into 3 group. The first group was the spering germination type. This group showed that the IT regime hadhigher germination rate than that of the DT regime, and was distributed in Macheon(300m) and Packmudong (500m). The second was the spring-fall germination type which was distributed in Hadong (900m) and Saemt대 (1100m). This group also showed higher germination rate in the IT regime, but the difference of the germination rate between IT and DT regime was less than that in the first group (the spring type). The third group was the early fall germination type which was found in the Nogodan (1507m), Changetomok (1750m) and Cheonwangbong (1915m). The germination rate of this group showed almost 100% similarity between IT and DT regime. These data suggested that the geographical varations of germination characteristics within species was an important ecological strategy for the survival from severe environmental conditions.

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