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The Type Classification and Characteristic Analysis of Biotope in Rural Areas (농촌비오톱 유형분류 및 특성분석)

  • Cho, Hyun-Ju;Ra, Jung-Hwa;SaGong, Jung-Hee;Ryu, Yeon-Su
    • Journal of Korean Society of Rural Planning
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    • v.15 no.4
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    • pp.19-32
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    • 2009
  • This research has a significant meaning to break from the urban ecology-oriented biotope research and realize the importance of rural landscape as a reserve area for systemizing the types of rural biotope. The results are as follows. First of all, items for classification of 16 rural biotope areas are designed and total 9 itmes in slope from spatial structural point of view and 7 items in minute-variety from functional point of view. Also, as the result of on-site research on case areas based on classified items, there are 46 types of rural biotope such as coniferous forest, hedgerow and so on. For example, it is proven that uncultivated stripe showed the most frequent emergence. As a result of cluster analysis of average linkage method between clusters, 12 clusters are classified as a clusters and 13 biotope types are re-corrected and complemented through brainstorming process and then total 12 clusters are selected as final rural biotope type groups. As a rural biotope type cluster and character analysis according to types based on on-site research and documentary survey, for example, it is analyzed that the ratio of transmissible covering ratio is 100%, the ratio of green coverage is 90% in 'woodland in cultivated area biotope type cluster'.

A Study on the Development of Guideline for Assessing Anterior Nasal Cavity Using Nasal Endoscopy on Allergic Rhinitis Patients (비내시경을 활용한 알레르기 비염 환자의 전비경 소견 평가 척도 개발)

  • Yun, Young-Hee;Park, Jeong-Su;Kim, Kyu-Seok;Kim, Nam-Kwen;Kim, Kyung-Jun;Kim, Hee-Taek;Hong, Seung-Ug;Choi, In-Hwa;Ko, Seong-Gyu
    • Journal of Society of Preventive Korean Medicine
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    • v.17 no.1
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    • pp.199-207
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    • 2013
  • Objectives : The prevalence of Allergic Rhinitis (AR) has increased during the last decade. However, a lot of decisions on the assessment and treatment of AR are made depending on the personal experiences and choices of physicians. To suggest preferable approaches and to minimize the variations according to physicians, guidelines for assessing anterior nasal cavity using nasal endoscopy on AR is needed. Methods : The Korean Oriental Medical Ophthalmology, Otolaryngology and Dermatology Society and the Korean Oriental Preventive Medical Society has set out to develop the guidelines for the assessing anterior nasal cavity using nasal endoscopy on AR. Results & Conclusions : This is the first Korean guideline for the assessment of AR and should be revised and supplemented in the future as new evidence becomes available.

Physiological Activity of Extracts from Mixed Culture of Medical Herbs and Mycelia of Tricholoma matsutake and Cordyceps militaris by Fermentation (송이버섯과 동충하초 균사체를 혼합 배양한 한방추출물의 발효에 의한 생리활성)

  • Lee, Hyoung-Beom;Kim, Hae-Ja;Chong, Myong-Soo;Cho, Hwa-Eun;Choi, Yun-Hee;Lim, Kyu-Sang;Lee, Ki-Nam
    • The Korea Journal of Herbology
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    • v.23 no.1
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    • pp.1-8
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    • 2008
  • Objectives : The purpose of this study was to investigate extracts from mixed culture of Oriental medicines and cereal medium and mycelia of Trichloma matsutake and Cordyceps militaris by fermentation to develop new material for pharmaceutical products and medicinal food, Methods : To evaluate physiological activities of OCM extracts, we examined antioxidant activity(total polyphenol contents, electronic donating ability, SOD-like activity), ${\beta}$-glucan contents, nitric oxide production and cytotoxicity by MTT assay. Results : Total polyphenol contents of fermented OCM(UF) and non-fermented OCM(UM) extracts were more than 40% UM and UF of DPPH radical scavenging activity was 25.67%, 23.43% respectively. Total polyphenol content of non-fermented extract (UME) was 12.57%, while that of fermented extract(UFE) was 7.05%. SOD like activity showed UM 85.35%, UF 76.18%, UME 58.42%, UFE 72.21%. UME, and UFE 31.43%, ${\beta}$-glucan contents of UME and UFE were more than 40%. NO productions of UME, and UFE showed a LPS dose dependent tendency. Cytotoxicity on Raw 264.7 cell showed more than 90% viability. Inhibitory effect of UFE on HT1080 cell growth was higher than UME. Conclusions : These results showed that extracts from mixed culture of mushroom mycelium and OCM have physiological activities which can be used in pharmaceutical products and medicinal food.

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Discourse of "Alltagsgeschichte" and Modernization Process of Korean Housing (주거변화의 일상사적 담론과 한국 주거의 근대화과정)

  • Jun, Nam-Il;Hong, Hyung-Ock;Yang, Se-Hwa;Sohn, Sei-Kwan
    • Journal of the Korean Home Economics Association
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    • v.44 no.8
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    • pp.181-198
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    • 2006
  • The purpose of this study is to understand modernization process of korean housing during the past one century. To following up the changes of everyday lives of common peoples, magazines, news papers, tourist's records and gossip items were collected and interpreted from the microscopic point of view. In this study arguments on 'modernity' of korean housing was focused on some issues, thus, separation, differentiation, individualization, as well as privatization. Concrete discourses are; firstly, spatial isolation of housing and urban place each other, secondly, functional division of inner spaces of housing, and lastly, guarantee of privacy sphere. Historical changes of housing showed some meaningful phenomena. Before modernization housing was place of reproduction and consume at the same time. However after modern urban space came into existence and work and rest were separated, housing gained only mono function. Thus, housing have only one meaning as private place for nuclear family, that is "Home, Sweet Home." Instead of past multi-functional rooms, functional prescribed rooms, for example, dinning room, were newly born. In the past, the boundary between public and private sphere was not clear. For examples, everyday experiences of family were extended to the street and in the house in most cases spaces were shared. But after modernization the scale of individual spaces become larger and private life can be secured. Consequently, history of everyday life from traditional agricultural society to industrialized modern society demonstrates the structural context between the micro and macro dimension in the fields of human life. In other words, everyday lives and macro history response each other and create new perception of time-space structure in the modern housing.

Advanced Forecasting Approach to Improve Uncertainty of Solar Irradiance Associated with Aerosol Direct Effects

  • Kim, Dong Hyeok;Yoo, Jung Woo;Lee, Hwa Woon;Park, Soon Young;Kim, Hyun Goo
    • Journal of Environmental Science International
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    • v.26 no.10
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    • pp.1167-1180
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    • 2017
  • Numerical Weather Prediction (NWP) models such as the Weather Research and Forecasting (WRF) model are essential for forecasting one-day-ahead solar irradiance. In order to evaluate the performance of the WRF in forecasting solar irradiance over the Korean Peninsula, we compared WRF prediction data from 2008 to 2010 corresponding to weather observation data (OBS) from the Korean Meteorological Administration (KMA). The WRF model showed poor performance at polluted regions such as Seoul and Suwon where the relative Root Mean Square Error (rRMSE) is over 30%. Predictions by the WRF model alone had a large amount of potential error because of the lack of actual aerosol radiative feedbacks. For the purpose of reducing this error induced by atmospheric particles, i.e., aerosols, the WRF model was coupled with the Community Multiscale Air Quality (CMAQ) model. The coupled system makes it possible to estimate the radiative feedbacks of aerosols on the solar irradiance. As a result, the solar irradiance estimated by the coupled system showed a strong dependence on both the aerosol spatial distributions and the associated optical properties. In the NF (No Feedback) case, which refers to the WRF-only stimulated system without aerosol feedbacks, the GHI was overestimated by $50-200W\;m^{-2}$ compared with OBS derived values at each site. In the YF (Yes Feedback) case, in contrast, which refers to the WRF-CMAQ two-way coupled system, the rRMSE was significantly improved by 3.1-3.7% at Suwon and Seoul where the Particulate Matter (PM) concentrations, specifically, those related to the $PM_{10}$ size fraction, were over $100{\mu}g\;m^{-3}$. Thus, the coupled system showed promise for acquiring more accurate solar irradiance forecasts.

A Study of Parental Knowledge and Confidence in Newborn Care (신생아 부모의 양육지식과 양육자신감에 관한 연구)

  • Lee Hwa-Ja;Lee Seung-Ah;Kim Myung-Hee;Kim Young-Hae;Park Nam-Hee
    • Child Health Nursing Research
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    • v.10 no.3
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    • pp.262-271
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    • 2004
  • Purpose: To explore the level of and relationship between parental knowledge and confidence in newborn care. Method: The sample of this study was consisted of 113 newborn's parents. Data was collected by researcher from Oct. 28th to Dec. 18th, 2002. Data were analyzed SPSS WIN(10.0) Program. Result: Total score of parents knowledge: Father's mean was 13.59(SD=5.32) and Mother's mean was 17.55(SD=3.72). There was meaningful difference in knowledge about newborn care between father and mother. The mother's knowledge was significant higher than the father's(t=6.45, p=.000). Total score of parents of newborn confidence: Father's mean was 40.66(SD=7.34) and Mother's mean was 41.88(SD=7.23). There was no difference in confidence in newborn care between father and mother(t=1.26, p=.209). There was significant correlation between knowledge and confidence about newborn care of fathers(r=.331, p<.001) and mothers(r=.317, p<.01). Conclusion: There is a need to educate fathers to enhance their knowledge about newborn care. More research is needed to study the relationship between parental knowledge and accuracy of behavior regarding newborn care.

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Bond-Slip Model of Interface between CFRP Sheets and Concrete Beams Strengthened with CFRP (탄소섬유시트로 보강된 콘크리트보의 경계면 부착-슬립모델)

  • Kim, Sung-Bae;Kim, Jang-Ho Tay;Nam, Jin-Won;Kang, Suk-Hwa;Byun, Keun-Joo
    • Journal of the Korea Concrete Institute
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    • v.20 no.4
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    • pp.477-486
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    • 2008
  • External bonding of carbon fiber reinforced plastic sheets has recently emerged as a popular method for strengthening reinforced concrete structures. The behavior of CFRP-strengthened RC structure is often controlled by the behavior of the interface between CFRP sheets and concrete. In this study, a review of models on bond strength, bond-slip, and interfacial stresses has been first carried out. Then a new bond-slip model is proposed. The proposed bond-slip model has bilinear ascending regions and exponential descending region derived from modifications mode on the conventional bilinear bond-slip model. The comparison of the results with those of existing experiment researches on bond-slip models indicate good agreements.

Exploration of Functional Materials from Oriental Medicine Extracts Cultured with Tricholoma Matsutake Mycelium - (1) Physioactivity of Extracts in Accord with Extraction Methods -

  • Kim, Hae-Ja;Kim, Ki-Chul;Choi, Yun-Hee;Cho, Hwa-Eun;Hong, Hak-Gi;Han, Jung-Ho;Lee, Ki-Nam
    • Journal of Society of Preventive Korean Medicine
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    • v.12 no.2
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    • pp.1-12
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    • 2008
  • The purpose of this study was to investigate extract from mixed culture with Trichloloma matsutake mycelium in oriental medicine and cereal medium(OCM) to develop new material for pharmaceutical products and medicinal food. To evaluate of physiological activity of OCM extracts, we examined ${\beta}$-glucan contents, SOD-like activity, nitric oxide production and cytotoxicity by MTT assay. ${\beta}$-glucan contents was found to be 52.85% for crude polysaccharide of hot water extracts of OCM(HEE) and 49.74% for crude polysaccharide of ultra sonic waves, micro waves, and micro bubble extracts of OCM (UEE). SOD like activity was showed UE 74.66%, HE 67.16%, UEE 31.34%, HEE 26.10%, respectively. NO production of UEE and HEE, at LPS 1 ug/mL, 1 mg/mL UEE showed 66.62 uM and HEE 45.68 uM. at LPS 10 ug/mL, 1 mg/mL UEE showed 63.91 uM and HEE 51.74 uM. The inhibitory effect against HT1080 was increased dose-dependently in UEE.

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Difference of Gene Expression between Hypertrophic Scar Keratinocytes and Normal Keratinocytes (비후성 반흔 각질세포와 정상 각질세포의 유전자 비교분석)

  • Choi, Sung-Won;Chung, Ho-Yun;Lim, Young-Kook;Kim, Hoon-Nam;Oh, Ji-Won;Kim, Moon-Kyu;Jeon, Sae-Hwa;Hong, Yong-Taek
    • Archives of Plastic Surgery
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    • v.37 no.4
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    • pp.317-322
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    • 2010
  • Purpose: There is no clear evidence of the original cause of hypertrophic scar, and the effective method of treatment is not yet established. Recently the steps of searching in gene and molecular level are proceeding. we are trying to recognize the difference between keratinocytes of hypertrophic scar and normal skin. Then we do support the comprehension of the scar formation mechanism and scar management. Methods: Total RNAs were extracted from cultured keratinocytes from 4 hypertrophic scars and normal skins. The cDNA chips were prepared. A total of 3063 cDNAs from human cDNA library were arrayed. And the scanning data were analyzed. Results: On microarray, heat shock protein, pyruvate kinase, tumor rejection antigen were more than 2 fold intensity genes. Among them, heat shock 70 kd protein showed the strongest intensity difference. Conclusion: In this study, it can be concluded that heat shock proteins play an important role in the process of wound healing and scar formation. This study provides basic biologic information for scar research. The new way of the prevention and treatment of scar formation would be introduced with further investigations.

Performance Analysis of Cellular If Using Combined Cache and Alternative Handoff Method for Realtime Data Transmission (실시간 데이터를 지원하는 통합 캐시 및 차별화된 핸드오프를 이용한 셀룰러 IP의 성능분석)

  • Seo, Jeong-Hwa;Han, Tae-Young;Kim, Nam
    • The Journal of the Korea Contents Association
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    • v.3 no.2
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    • pp.65-72
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    • 2003
  • In this paper, the new scheme using a Combined Cache(CC) that combing the Paging and Routing Cache(PRC) and an alternative handoff method according to the type of data transmission for achieving the efficient realtime communication. The PRC and quasi-soft handoff method reduce the path duplication. But they increase the network traffic load because of the handoff state packet of Mobile Host(MH). Moreover the use the same handoff method without differentiating the type of transmission data. Those problems are solved by operating U with a semi-soft handoff method for realtime data transmission and with a hard handoff method for non-realtime data transmission. As a result or simulation a better performance is obtained because of the reduction of the number of control packet in case that the number of cells are below 20. And the packet arrival time and loss of packet decreased significantly for realtime data transmission.

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