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조현정(Cho, Hyun-Jung),김상협(Kim, Sang-Hyup),노현균(Noh, Hyeon-Kyun),김호수(Kim, Ho-Soo),정성진(Jung, Sung-Jin),김왕직(Kim, Wang-Jik),김덕문(Kim, Derk-Moon) 대한건축학회 2014 대한건축학회논문집 Vol.30 No.3
Multi-roofed historic wooden building "connection" and "special proportion" of the load according to the delivery system may be different. Layer and the layer again, and that there is a special proportional single layer than building Multi-roofed historic wooden building will be the reason for severe deformation. In this paper, we present a Multi-roofed historic wooden building in Korea in connection with the special classified on the basis of proportional type, susceptible parts to organized the structure, and the techniques used to reinforcement the study aims to. As a result, depending on the type of connection that specific proportion and was able to find similarities and differences.
정진화 ( Jin Hwa Jung ),노재선 ( Jae Sun Roh ),조현정 ( Hyeon Jung Cho ) 한국농업경제학회 2013 農業經濟硏究 Vol.54 No.2
This paper scrutinizes the aging phenomenon of farm households in South Korea with a focus on its effect on household income. We investigate the characteristics of aging farm households in terms of the size and composition of household income. We also investigate the nexus between aging and income polarization. Census of Agriculture, Forestry and Fisheries (2000, 2010) and Farm Household Economy Survey (2003~2010) data are applied. The major findings are as follows. First, with the rapid aging of Korean farm households, old-age households tend to be occupied by petty farmers who cultivate paddy fields. Second, old-age farm households earn much less farm income-both total income and income per 10a-than middle-aged farm households. Third, old-age farm households earn low average household income with extensive income polarization. A gap in non-farm income chiefly contributes to polarization. The findings suggest a need for a customized strategy designed to enhance the overall productivity of old-age farmers while securing the income of low-income older-age farm households.
고령 농업인에 적합한 농업신기술 확산: 딸기 고설수경재배 사례
정진화 ( Jin Hwa Jung ),노재선 ( Jae Sun Roh ),조현정 ( Hyeon Jung Cho ),김새봄 ( Sae Bom Kim ) 한국농업경제학회 2013 農業經濟硏究 Vol.54 No.4
This study investigates the effect of farmers` age on the diffusion of new agricultural technol-ogy with special reference to technology that suits the needs of elderly farmers in South Korea. The elevated hydroponic system for strawberry cultivation was selected as a model case of such technology because it is labor-saving and intensity-relieving compared to typical soil-cultivation. In the analysis for the determinants of farmers` technology adoption, a binomial logit model was applied to the survey data of 266 strawberry farmers. Empirical results confirm that, when we control for the individual farmer`s education level and technology acceptance level, the age of the farmers does not lower the adoption rate of the elevated hydroponic system. This implies that strategic development and diffusion of the elderly-friendly technology can be used as a measure to enhance the productivity of elderly farmers in rapidly aging South Korea.
재발성 기침과 천명을 가진 소아환아의 알레르기 검사에 대한 고찰
이석규(Suk Kyeu Lee),이기창(Ki Chang Lee),박찬정(Chan Jung Park),조현정(Hyeon Jung Cho),김광우(Kwang Woo Kim) 대한소아알레르기호흡기학회(구 대한소아알레르기 및 호흡기학회) 1995 소아알레르기 및 호흡기학회지 Vol.5 No.2
N/A Asthmatic bronchitis and asthma are very common allergic diseases in the pediatric age group. These are lower respiratory disease which shows cough, wheeze and shortness of breath. Various rales and wheezing can be heard in asthma and asthmatic bronchitis if superimposed with pneumonia. It is often difficult to diagnosis clearly. So, we intended to know the allergic characteristics in these disease (asthma, asthmatic bronchitis, pneumonia) together. Eight hundred ninety eight cases (male; 587, female; 311) were taken allergic skin tests, peripheral eosinophil counts, serum total IgE, specific IgE and symptom scores who were admitted or visited outpatient clinic. 1) In the allergic skin tests, Dermatophagoides pteronyssinus (Dp) shows 39.2% over 2 positive and 4 positive reactivity was 42.3% in positive group, Dp reactions shows more sensitive than Df reactions. The skin reaction on egg was greater than milk but only about one percent in all cases. 2) Total IgE was shown no correlation with age, sex, PB eosinophil count, wheal and erythema on allergic skin test. 3) Total IgE and specific IgE for Dp, Df made gradual increment in percentage in according to going to upper class of IgE. 4) The Class 2 and Class 3 of total IgE appeared three-forth in all patients (class 2: low to moderate, class 3: high). Also, the rates were increased with age increment. In conclusion, total IgE and specific IgE (especially in Dp, Df) are more specific diagnostic tools in early age group compare to adult and old children who have asthma, pneumonia and other lower respiratory diseases.
파노라마방사선사진 지수와 임플란트 실패와의 관계에 관한 연구
조현정,이원진,허민석,안창현,이진구,이삼선,최순철 大韓口腔顎顔面 放射線學會 2004 Imaging Science in Dentistry Vol.34 No.1
Purpose : Several panoramic indices have been suggested to assess bone quality from the morphology and width of mandibular cortex on panoramic radiography. The purpose of this study was to compare dental implant failure group with control group in panoramic mandibular index (PMI), mandibular cortical index (MCI), and gonion index (GI) and to determine the effect of these panoramic indices on dental implant failure. Materials and Methods : A case-control study was designed. Test group (n = 42) consisted of the patients who had their implants extracted because of peri-implantitis. Control group (n = 139) consisted of the patients who retained their implants over one year without any pathologic changes and had been followed up periodically. They had dental implants installed in their mandibles without bone augmentation surgery from 1991 to 2001. The following measures were collected for each patients: 1) PMI, MCI, and GI were measured twice at one-week interval on preoperative panoramic views; and 2) age, sex, implant length, implant type, installed location, occluding dentition state, and complication were investigated from the chart record. Results : The PMI showed moderate level of repeatability. The intra-observer agreement of MCI and GI were good. There was statistically significant difference in PMI between two groups. There were significant different patterns of distribution of MCI and GI between two groups. Among the panoramic indices, PMI and MCI showed significant correlation with dental implant failure. Conclusion : Panoramic indices can be used as reference data in estimating bone quality of edentulous patients who are to have implants installed in their mandibles.