溫床用上의 理化學的 特性이 幼苗의 系質에 미치는 影響 : Park, Hwa-Sung & Kwang-Soo Kim 溫上의 異化學的 特性

朴華性,金光秀 全南大學校 農漁村開發硏究所 1982 農業科學技術硏究 Vol.17 No.1

本 實驗은 施設園藝地帶인 光山郡, 順天市, 康津郡 等에서 葉菜類와 果菜類의 育苗用 床土를 試料로 22点 分讓받아 수행하였으며 結果는 다음과 같다. 1.床土의 助成과 性質에 關與하는 가장 重要한 因子는 有機物含量인데 有機物含量이 높아짐에 따라 假比重과 眞比重은 낮았고 空隙率, 水分含量, 全窒素, 置換容量은 높아진다. 2. 葉菜類의 床土는 有機物含量이 많은 반면 果菜類床土의 경우는 그보다 낮게 나타났다. 봄결구배추床土의 有機物含量은 8.85~9.19%의 範圍로 別變化가 없었다. 3. 床土의 pH는 4.9~7.2의 範圍에 있었으며 大部分이 pH 7±1로서 中性에 가까웠다. 4. 置換性 K는 7点이 1.0m.e. 以上이었고 15点이 1.0m.e. 以下로 나타났다. 5. 苗의 바람직한 生育을 위해 P.K.의 量을 規定짓기는 어려우나 床土의 試料內에는 相當量의 養分이 含有되 있는 것을 알 수 있다. This experiment was intended to know the effects of physical and chemical properties of the excellent composts. Twenty two samples were collected from plastic covered greenhouse zone in chonnam province. The results obtained are as follows; 1. One of the most important factors in relation to the texture and other properties of the composts was the organic matter content. The higher the organic matter content were the lower the specific gravity and the apparent specific gravity and the higher the porosity, moisture content, total nitrogen and exchangeable capacity. 2. The composts for raising leaf vegetable seedlings contained higher levels of organic matter while the ones for fruit vegetable contained rather less. The organic matter contents in the composts for spring heading Chinese cabbage were not variable ranging from 8.85 to 9.19 percent. 3. Hydrogen-ion concentrations of the composts were in the range of pH 4.9~7.2 but most of them were in pH 7±1 or nearly neutral in their reaction. 4. Seven samples contained more than l.0m.e. of exchangeable potassium, and fifteen of them contained lower than l.0m.e. of it. 5. It was not clear how high of P or K levels were sufficient for the excellents in some of the samples, at least, were so high, that they seemed to contain surplus amounts of fertilizers.

섬유강화형 포스트를 이용한 치관-치근 파절의 치료: 증례 보고

임화신,라지영,이광희,안소연,김윤희,금기석,이상봉 大韓小兒齒科學會 2012 大韓小兒齒科學會誌 Vol.39 No.1

The crown-root fracture is defined as a fracture of tooth that contains enamel, dentin and cementum with or without pulp exposure. Generally the fracture lines place obliquely from labial surface, between incisal edge of the crown and marginal gingiva, to palatal surface subgingivally. If the fracture line is located supragingivally, the removal of tooth fragment and supragingival restoration can be performed. In subgingival fracture line, the surgical exposure, orthodontic eruption or surgical eruption can be considered. If the fracture line is too deep to restorate, extraction or decoronation can be selected. In children and adolescents, the extraction should be the last option. Another option to select before extraction is the restoration using fiber-reinforced post and the reattachment of tooth fragment. The fiber-rainforced post enhances the retention and the durability of tooth fragment. The reattachment of crown fragment using resin adhesive system is considered minimal invasive treatment biologically. This case reports the treatment of crown-root fracture using the reattachment of crown fragment and the insertion of fiber-reinforced post. 치관-치근 파절은 법랑질, 상아질, 백악질이 모두 포함된 치아의 파절로, 파절선이 대부분 절단연이나 순측의 변연부 치은 에서 구개측 치은열구 하방으로 사선으로 진행된다. 파절선의 위치가 치은 연상이라면 파절편의 제거 및 치은연상 수복을 시 행하고, 치은 연하라면 파절면의 외과적 노출술, 교정적 정출술, 외과적 정출술을 이용한 치아의 수복이 이루어진다. 그 외에 섬유 강화형 포스트를 삽입하여 치관 수복물의 유지력을 높이고, 레진 접착 시스템을 사용하여 치관 파절편을 재부착함으로 써 생물학적으로 최소한으로 침습적인 치료를 하는 방법도 있다. 만약 파절의 정도가 치은 연하로 깊은 경우 발치나 치관절제 술을 이용한 치근의 유지 등을 고려할 수 있다. 본 증례는 치관-치근파절로 내원한 12세 환아로 섬유강화형 포스트를 사용하여 치관 파절편 재부착을 시행하였으며 양호 한 경과를 보여 이를 보고하는 바이다.

유아의 성에 따른 스트레스 대처 유형과 놀이성에 관한 연구

진화숙,김광웅 숙명여자대학교 아동연구소 2001 兒童硏究 Vol.15 No.1

The purpose of this study is to find out the difference between the types of stress coping and the p1ayfulness of young children according to their sex and the relationship between the types of stress coping and the playfulness. To meet those purposes, the concrete study problems are as fllow: 1.How is the difference in the types of stress coping of young children according to their sex? 2.How is the difference in the playfulness according to the young children's sex? 3.What is the relationship between the trees of stress coping and the playfulness of young children? The subjects of this study were 300 children who were 5 years old of eight children's houses and kindergartens located in Kangnam-gu, Seocho-gu, Songpa-gu, and Cheungrang-gu in Seoul City. However, only 216 questionnaires were used in analyzing of this study except the questionnaires which young children could not understand or filled up insincerely. The measuring instrument was the scale of the types of stress coping and playfulness of young children. To see the types of stress coping of young children, the scale which was reorganized by Rew, Jeong-Soo(1995) from Band & Weisz(1988) was used. Furthermore, to veasure the playfulness of young children, the scale which was adapted and also modified and complemented some questions by Kim, Young-Hee (1995) from the Children's Playfulness Scale of Barnett(1990). In analyzing the collected data, the frequency and the percentage were produced by SAS program. The x2 test was carried out to see the types of stress coping of young children according to their sex. The independent t-test was carried out to see the playfulness of young children according to their sex. Also, the One war-ANOVA was carried out to see the relationship between the types of stress coping and the playfulness of young children. The results of this study are summarized as follows: 1.There was a meaningful difference in the types of stress coping of young children according to their sex. In boys' case, they used the problem facing countermeasure very much and in girls' case, they used the adaptation countermeasure very much. 2.There was a meaningful difference in the playfulness of young children according to their sex. The boys had higher playfulness than the girls. To see the content in detail, the physical spontaneity and the sense of humor were highly appeared. 3.In boys' case, there was no meaningful difference between the types of stress coping and the playfulness of young children, but in girls' case, there was a meaningful difference only in the subfactor of playfulness. So, the girl who had high physical spontaneity used the problem facing countermeasure very much than the adaptation countermeasure and the non-countermeasure.

일부 소방공무원의 음주와 직무스트레스와의 관련성

강경화,이강숙,김석일,맹광호,홍현숙,정춘화 大韓産業醫學會 2001 대한직업환경의학회지 Vol.13 No.4

목적 : 소방공무원의 음주량과 직종별 직무 스트레스에 대해 알아보고 보다 나은 스트레스 관리방안과 문제성 음주예방을 위한 프로그램을 모색하기 위해 시도되었다. 대상 : 2000년 7월부터 8월까지 소방공무원 중 구조대원 97명, 구급대원 97명, 화재진압대원 179명,행정대원 116명, 기타대원 49명을 대상으로 설문지를 이용하여 수집된 자료를 분석하였다. 결과 : 소방공무원은 모든 직종에서 승진 및 임금제도의 스트레스 요인 점수가 가장 높았다. 직종별로 직무 내적 요인, 조직에서의 역할, 대인관계, 조직과 풍토, 직장환경과 스트레스 결과 점수에 있어 유의한 차이를 보였다 과음 주자인 경우 직무 내적요인, 직무 스트레스 수준, 개인적 특성, 대처방식의 점수가 높았으나 유의하지 알았다. 음주량은 직무내적 요인 중 업무 피드백과 음의 관련성을, 직무 스트레스 요인 중 역할 갈등은 음주량을 증가시키는 것으로 나타났다. 결론 소방공무원의 가장 높은 직무 스트레스 요인으로는 승진 및 임금제도인 것으로 나타났다. 음주량은 역할 갈등과 같은 직무 스트레스 요인과 관련이 있었으며, 향후 전향적인 음주행태조사를 통해 직무 스트레스 요인이 음주에 미치는 영향을 파악하기 위한 연구가 필요하다고 생각된다. 따라서 본 연구결과를 기초로 소방공무원의 직무 스트레스 요인에 대한 적절한 관리와 정책이 필요한 것으로 사료된다. Objectives : To establish the relationship between alcohol use and job stress among firemen, and to develop a comprehensive health promotion program including stress management and the prevention of problem drinking. Methods : Data was collected from July to August, 2000. Study subjects included 97 rescue workers, 97 emergency medical personnel, 179 fire extinguishers, 116 administrators and 49 others. Results : The firemen displayed higher scores of stress due to promotion-related pres-sures and salary. We found significant differences in job internal factors, job role, inter-personal relationship, organizational norm, work environment and stress outcome among the various jobs. Job internal factors, job stress factors, personal characteristics, coping skills, and stress outcome were higher in heavy drinkers compared with the light and moderate drinkers. Job internal factors and smoking habit showed a positive correlation with the amount of drinking, although coping skill, exercise frequency and monthly income showed a negative relation with the amount consumed. Conclusion : This study suggested that alcohol drinking is associated with job stress. This suggests that a comprehensive health promotion program including stress management and problem drinking prevention and control should be developed.

플라스마 융합연료 공급시스템 개발

심명화,정홍석,김창석,백승우,안도희,이민수,김광락,임성팔 한국공업화학회 2005 응용화학 Vol.9 No.1

The main purpose of fusion fuel supply system is to store and supply hydrogen isotopes needed for operation of ITER and to provide the necessary infrastructure for short and long term storage of large amount of hydrogen isotopes. The storage of tritium as metal tritide on hydride forming metals or intermetallic compounds is recognized as the most reliable and safe method. Considering the advantages and disadvantages of several hydrogen isotope getter materials, the authors suggest the use of ZrCo on the basis of its ideal P-T-C characteristics and its non pyrophoricity. The authors also suggest the hydrogen isotope storage beds design appropriate to the fusion fuel supply system.

신체활동 참가 지체장애인의 대인관계 성향에 관한 연구

오광진,고연화 한국특수체육학회 2003 한국특수체육학회지 Vol.11 No.2

종일제유치원의 실태분석을 통한 영유아보육사업의 향후 대응방안 모색에 관한 연구

서화자,김광혁 한국영유아보육학회 2003 한국영유아보육학 Vol.0 No.34

This study analyzed the limits of full-day kindergarten as a way of improving the service of the child care education quantitatively and qualitatively. And it examined the countermeasure of the child care education business based upon this analysis. Data from the previous studies of the full-day kindergarten and the child care education were used for this study and the result of those data analysis was as follows. Above all, there was limited supply of service for children in operating full-day kindergarten because of the lack of programs, the increase of private education expenses, the lack of education personnel, the deficient facilities, and the absence of full-time teacher. As a measure of supplementing the limits in the child care education, this study suggested the qualitative improvement of the service, the diversification of the education service, the expansion of provincial kindergarten, and the introduction of the case management to perform the comprehensive education service, while maintaining the education facilities and the basic functions of kindergarten.

유동층을 이용한 탈황제의 마모특성에 관한 연구

오광중,김형국,최은화,조기철 부산대학교 환경문제연구소 1999 環境硏究報 Vol.17 No.1

For the efficient energy use and the protection of environmental pollution, attrition characteristics, depending on the component and the condition of sorbent for the purification of fuel gas, were analyzed by a fluidized-bed tester. Results of these studies can be summarized follows. 1) When Mn-based sorbent(M, MT, MFT) prepared with varying addictives and induration conditions was compared in terms of particle size distribution and AI(Attrition Index), MT and MFT possessing TiO2 and Fe203 had much higher attrition resistance than M. Attrition resistance of M, MT and MFT increased as bentonite contents and induration temperature increased, when bentonite contents induration temperature were changed from 2 to 5% and from 1000 to 1100℃, respectively. Therefore when powdery catalysts are prepared, the attrition rate can be considerably affected by the controls of addictive, binder and induration temperature. 2) Attrition tests using MT1100-5 were performed under the conditions that particle size distribution was uniform and had much more over +270mesh and under -325mesh. AI due to attrition was 8.83, 21.54 and 1.67%, respectively. Thus, initial particle size distribution showed a great influence on both produced fines distribution and attrition loss. Therefore, the size distribution of particles injected initially and the particle size that carried over showed be considered to reduce the loss of particulate materials and the replacement cost due to attrition. 3) An experiment using MT1100-5 sorbent was also carried out to predict AI as a function of time and particle size distribution during 23hr. AI of prepared sorbent was 4.54, 7.73, 9.08, 11.35 and 12.48 after 1.5, 3, 5, 9 and 23hr. respectively. Thus, it was shown that the amount of produced fines during the same time was shorten with the increase of time. The operating condition of dust capturing equipment and the rate of powder exchange needs to be considered because most of the fines due to fluidization of particulate material was generated at initial operation.

잎파래 (Enteromorpha linza)의 葉體無菌化와 元形質體 培養

裵光星,宋相鎬,鄭圭和 慶尙大學校 1991 論文集 Vol.30 No.2

잎파래(Enteromorpha linza) 葉體의 無菌化와 葉體에서 分離한 原形質體의 培養에 關한 몇가지 條件을 決定코자 하였다. 洗劑로 葉體의 附着微生物을 除去하기 爲해서는 0.1%液으로 15∼20分間 洗 하는 것이 效果的이었으며, 組織內部의 微生物은 1% KI-I2液으로 2.5∼5分間 處理하여 抗生劑 2%가 添加된 培地함으로서 除去가 可能하였다. 葉體의 原形質體는 2% AAP가 添加된 各種酵素液으로 容易하게 분리할 수 있었다. 原形質體의 無菌培養을 爲한 抗生物質의 添加濃度는 1.5%程道가 適當하였으며 照度는 2000lux以上일 境遇培養에 큰 影響을 미치지는 않는 傾向이었다. Basic studies for obtaining the axenic tissue, isolation and culture of protoplasts of Enteromorpha linza have been attempted. Treating with 0.1% detergent for 15-20mins were effective for cleaning the collected tissue. Exposure the tissue to a 1% KI-I2 solution for 2.5-5.0 mins subsequently culture them in the medium containing 2.0% antibiotic materials were good for inhibition of bacterial growth as well as enzyme solutions composed of abalone acetone powder, cellulase R-10, and driselase. The 2.0% antibiotic medium was good for the suppression of bacterial growth in protoplasts culture. The development of protoplasts was not largely influenced by the light strength and photoperiods.

에코뮤지엄 개념에 기초한 지역문화재의 보전 및 이용현황에 관한 실태분석

김선화,문동기,박광범 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(계획계)

Recently an inhabitants participation campaign that utilize cultural inheritance to place of history education in area rescue regional quality is implemented in advanced countries. The purpose of this study is aimed to investigate the conservation present condition and utilization present condition cultural assets in chongju city, Korea. This study is grope possibility that do cultural assets being in area throught ecomuseum theory as can do function by area people's lifelong education.