水稻 機械移秧 裁培時 側條施肥方法에 關한 硏究

趙東三,朴裁成,尹汰,朴成圭 충북대학교 농업과학기술연구소 1993 農業科學硏究 Vol.10 No.2

This experiment was conducted to clarify the effects of different fertilizer types, application me-thods and amounts with band application on the growth and grain yield of rice on experimental fields of Chungbuk Provincial Rural Development Administration in 1990. The results were summarized as follows ; Compared with different fertilizer types and applications methods, plant height were longer in band application with fast or slow releasing compound fertilizer than that of whole layer application with conventional fertilizer, and no. of tillers had same tendency. In band application, no. of panicles were greater compared with that of whole layer application, but no. of grains per panicle and ripened grain ratio showed low tendency. Compared with N fertilizer split application methods, no. of panicles per m2 were low as N fertilizer reduced about 20 to 30% , but no. of grains per panicle and ripened grain ratio were increased. Yields were higher more or less in band application compared with that of conventional fertilizer in the same application amounts, and had no differences in band application as N fertilizer reduced to 20% compared with conventional fertilizer.

한국 정신장애의 역학 조사 연구[I] : 각 정신장애의 유병률

조맹제,함봉진,김장규,박강규,정은기,서동우,김선욱,조성진,이준영,홍진표,최용성,박종익,이동우,이기철,배재남,신정호,정인원,박종한,배안,이충경 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.4

Objectives : This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). Methods : Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November30,2001. Results : Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major de-pressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. Conclusion : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.

강모단 하방에 용수철이 부착된 칫솔의 치태 제거 효과에 관한 임상적 연구

조성훈,양규호,오종석 전남대학교 치과대학 2000 전남치대논문집 Vol.12 No.1

Oral examinations were conducted before the experiment started. The students were given common toothbrushes (control group) or spring-attached toothbrushes (experimental group) and instructed to brush their teeth by scrubbing method. Measurement of plaque index and count of salivary bacteria were done at 0, 1, 3, and 5 weeks. 1. Mean plaque index was significantly reduced at week 1 compared with at week 0 in both groups. (P<0.05) 2. Mean plaque index was significantly reduced at week 3 compared with at week 1 in the experimental group. (P<0.05) 3. Mean plaque index was significantly reduced at week 5 compared with at week 3 in the experimental group. (P<0.05) 4. There were no significant differences of mean plaque index among week 1, week 3, and week 5 in control group. (P>0.05) 5. The number of salivary bacteria was slightly reduced during the experiment, however there was no statistical significance. (P>0.05) To reduce the plaque effectively, the use of spring-attached toothbrush should be recommended, and adequeate instruction for children is needed.

한국 일 도시지역 청소년의 우울 증상 유병률과 관련요인에 대한 연구

조성진,전홍진,김무진,김장규,김선욱,류인균,조맹제 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.4

연구 목적 : 한국의 일 도시지역에 거주하는 청소년의 우울 증상의 유병률과 관련요인을 밝힘으로써 청소년 정신건강 증진을 위한 기초 자료를 수집하기 위하여 실시되었다. 방 법 : 연구 대상은 부천시에 거주하는 중학교나 고등학교에 재학중인 청소년 71,102명 가운데에서 무작위 집락 표본 추출법에 의해 선정된 2,203명이었으며, 이들에 대해서 CES-D(the Center for Epidemiologic Studies Depression Scale)와 사회인구학적 정보에 대한 문항이 들어 있는 설문을 실시하였다. 설문은 직접 학교를 방문하여 수행하였다. 선정된 2,203명의 청소년 가운데에 CES-D문항을 완성한 학생은 1,972명으로 반응률은 89.5%였다. 결 과 : 1) CES-D의 절단점을 16점으로 하여 계산한 '가능한' 우울 증상의 유병률은 중학생의 경우에 남학생 34.6%, 여학생 44.7%였으며, 고등학생의 경우에는 남학생 43.8%, 여학생 49.6%였다. 2) CES-D의 절단점을 25점으로 하여 계산한 '명확한' 우울증 증상의 유별률은 중학생의 경우에 남학생 18.4%, 여학생 20.7%였으며, 고등학생의 경우에는 남학생 21.4%, 여학생 23.9%였다. 3)종교, 인문계와 실업계의 여부에 따라서 우울 증상의 유병률에는 유의한 차이가 없었다. 4) 성,학년, 생활수준에 대한 자신의 평가, 가족의 구조, 성적에 대한 만족도의 다섯 가지 변수에 대해 CES-D점수가 16점 이상인 우울 증상의 유무에 따라서 로지스틱 회귀 분석을 시행하였을 때 성적에 대해 불만적 하는 군에서 매우 만족하는 군에 비해서 8.850배의 상대 위험도를 보였다. 생활 수준을 중하정도라고 대답한 군은 상이라고 대답한 군에 비해서 2.007배의 상대 위험도를 보였다. 여학생은 남학생에 비해서 1.307배의 상대 위험도를 보였다. 5) 우울 증상에 있어서 남학생과 여학생의 비율은 전체 군에서 1:1.38이며 중학생의 경우에는 1:1.88, 고등학생의 경우에는 1:1.13으로 나타났다. 고등학생에 있어 남학생의 우울 증상이 증가하는 것은 학업과 입시에 대한 부담과 관련된 것으로 생각되었다. 결 론 : 한국 일 도시거주 중고등학생에서 CES-D로 측정한 우울 증상은 남학생의 34.3%, 여학생의 47.5%에서 나타날 정도로 흔하다. 특히 학업 성적에 대해 불만족 하는 군에서 높은 우울 증상의 상대 위험률을 보이며, 고등학생에서 남학생의 우울증의 유병률이 높아지는 것은 이 지역 학생들이 학업에 대한 높은 부담을 가지고 있다는 것을 알 수 있었다. 따라서 이들에 대한 특별한 관심이 요구된다. Objective : We tried to see the prevalence and correlates of symptoms of depression in an adolescent population in Korea, and collected the basal data for mental health promotion of adolescents. Method : We sampled 2,203 adolescents among 71,102 adolescents living in Puchon City in Korea by the randomized clustered sampling method. The Center for Epidemiologic Studies Depression scale(CES-D) was used to measure depressive symptoms. The measurements were conducted through visiting schools. Of the 2,203 adolescents(aged 13 to 18) who were sampled, 1,972 persons completed CES-D and sociodemographic questions. The response rate was 89.5%. Result : 1) The prevalence rate of 'probable' depressive symptoms with cutoff point 16 was 34.3% in the boys and 47.5% in the girls. 2) The prevalence rate of 'definite' depression symptoms with cutoff point 25 was 17.4% in the boys and 20.6% in the girls. 3) We could not find any meaningful difference in the average of CES-D from the districts where they live, the course of their education, and their religions. 4) We used the logistic regression analysis to find the risk factor for adolescent depression in these samples. Among the variables degree, it was most important risk factor in adolescent depression to dissatisfy with their school degrees. Compared it with fully satisfied group, the odds ratio was 8.850. The group of mid to low socioeconomic status had the odds ratio 2.007 compared with high socioeconomic status. The girls had the odds ratio 1.307 compared with the boys. 5) The male versus female ratio was 1: 1.38 in the total students and 1 : 1.88 in the middle school students, and 1 : 1.13 in the high school students. The male versus female ratio was relatively low in the high school students. It was the result of the high prevalence of depressive symptoms in the high school boys, and it was due to the large burden to their school degrees. Conclusion : The depressive symptoms checked by CES-D were very common among adolescents in Korean urban area. The prevalence of depressive symptoms was 34.3% in the boys and 47.5% in the girls. The result that male versus female ratio was relatively low in the high school adolescents, and the group that were dissatisfied with the school degrees had high risk of depressive symptoms, revealed that the students had large burden to their school degrees and so they needed special concerns.

고등학교 과학Ⅰ하 (지구과학) 교과서의 정량적 분석 (1)

조규성,남기상 全北大學校 敎育大學院 1992 敎育論叢 Vol.12 No.-

We investigate the text analysis, sentences, figures and diagrams, questions and summaries at the end of each chapter, activities index of the textbook of high school Science I B (Earth Science) that was reorganized at March, 1988 from the five publishers, according to the quantitative analysis method by Romey(1968). Index of student involvement for sentence analysis from five textbooks is 0.11~0.48. This is no discovery-oriented course that cease to statement of fact, definitions and stated conclusions. It will be primarily authoritarian and will contain few challenges to student other than memorization of facts and definitions. Romey's indices are 0.33~1.4 for figure and diagram analysis and 1.13~1.71 for analysis of questions at chapter ends, respectively, student activity per page investigated being 0.6~1.5. This is requiring some student activities pertinently. But chapter summaries cease to repeats the conclusions of the chapter also it be rather formaly and inattentively written. The indices of each unit are much different within the same textbook. This is believed to be caused by composition of authors, considering the multi-science nature of Earth Science. Textbooks should be compose of learned and expert authors without preponderating of certain field over others and discussed by the committee constituted with the specialist in science education, scientists and science teachers.

'지각의 물질과 변화' 단원에 대한 중학생들의 인식과 자연환경에의 연계성

조규성,황지현 全北大學校 敎育大學院 2001 敎育論叢 Vol.21 No.-

This study is focused on how much middle school students who learn the chapter of first-grade science, ‘The Materials and Change of the Earth Surface’, connect and understand what they learn with their environment and surroundings. According to this research, this study will discuss the connection between school education and living surroundings and how much the difference between the surroundings will influence the understanding of their concepts and attitudes toward science. This study researched 330 second-grade students in middle schools which are located in Jeonju, Buan and Jinan in Jeollabukdo. (1) In case of mineral and rocks, this study analyzed that students have known the concept of mineral and rocks by observing samples in class. Only 16 percent of the students observe surrounding rocks with interest, but most of them are not interested in it. (2) Chaesukgang and Mountain Mai are two local places in Jeollabukdo which have a lot of specific stratum and geological structures. So it’s easy for teachers to show the students rocks and geological structure by connecting outdoor experience with these locations. Although the students have a little more observation experience than Jeonju area students, all of them throughout the county seldom do outdoor observation learning. By collecting and observing the surrounding minerals and rocks, along with teaching the chapter ‘The Materials and Change of the Earth Surface’, and by visiting outdoor locations while teaching at geological structures, we can improve the effect of learning.

水稻 乾沓直播裁培時 播種方法 및 播種量

趙東三,朴裁成,尹汰,朴成圭 충북대학교 농업과학기술연구소 1993 農業科學硏究 Vol.10 No.2

This experiment was caried out to investigate the optimum seeding amounts with different seeding methods such as flat drill seeding by tractor, high ridged broadcasting and flat broadcasting by power tiller in direct seeded rice on experimental fields of Chungbuk Provincial Rural Development Administration in 1990. The results were summarized as follows ; Labor requirements from seeding to transplanting were decreased about 85% in flat drill seeding by tractor, about 79% in high ridged broadcasting, and about 77% in flat broadcasting by power tiller compared with that of machine transplanting. Seeding stand per m2 and percentage of seeding emergence were the highest in flat drill seeding by tractor compared with those of others. Optimum seeding amounts were 5kg/10a in flat drill seeding by tractor, whereas it was 7kg/10a in other treatments. As the seeding amounts were increased, no. of panicles and grains per m2 were increased, and it showed the highest in flat drill seeding by tractor. Ripened grain ratios hod low tendency as the seeding amounts were increased. In yields, it was the highest in flat drill seeding by tractor compared with seeding methods. Comparing yields with different seeding amounts, it was higher in seeding of 5kg/10a with flat drill seeding by tractor, while it was higher in 7kg/10a with other treatments.

水稻 直播栽培에 關한 硏究 : (Ⅰ)栽培方法이 節間長에 미치는 影響

趙東三,許華永,朴成圭,尹洪載,金泰秀 충북대학교 농업과학기술연구소 1989 農業科學硏究 Vol.7 No.2

Data on internode length obtained from cultural experiments on seeding date, seeding method and seeding rate in direct seeding cultivation of rice in 1989 were analyzed to investigate the rela-tionship between internode length and lodging. In general, internode length appeared to be longer in earlier plantings except May 11 planting which had longer internode than those of other plantings. Seeding in flooded condition as well as higher seeding rate resulted in longer internode length. Culm diameter leas greater in the order of April 21 > May 11 > May 21 > May 1 plantings, and drilled in upland condition > broadcasting in upland condition > seeding in flooded condition, while the higher the seeding rate, the greater the culm diameter was. Except seeding in upland condition and seething rate of 3kg/10a which showed lodging degree of 1, all other treatments resulted in severe lodging with degree of 7.

저수시 하상상황에 따른 조도계수의 적용에 관한 연구

조성만,유상호,박병선,민일규,민병형 東亞大學校 海洋資源硏究所 2002 硏究論文集 Vol.14 No.1

As the roughness coefficient by existing manning table is used by technician's experience and judgement, it isn't always correct. This study as a try to make quantitative roughness coefficient is to suggest a new application mode computerizing roughness coefficient by surveying the velocity and hydraulic condition of small rivers. The bound of roughness coefficient was 0.027∼0.180 and its values distribute uniformly. This means that the roughness coefficient adapt value Manning table cannot fill up the transformed value when the small rivers are low. The roughness coefficient computation mode in this study with hydraulic radius(R), channel slope(I), average grain diameter(D) as subject factors presents as follows. n = 5.97R^0.671 l^0.452 D^0.059

남원 지역에 분포하는 화강암류와 풍화토양의 화학성분 변화에 관한 연구

조규성,박정관 全北大學校 科學敎育硏究所 1999 과학과 과학교육 논문지 Vol.24 No.-

This study aims at clarifying the variation of chemical composition according to weathering of granitic rocks in the Namwon area. The results are obtained from the analysis and examination of chemical composition of the basement and weathered rocks. The abundance of Na_2O and FeO decreased according to weathering of rocks from the Harker variation diagram. As weathering proceeds, the ratio of K_2O/Na_2O, Al_2O_3/CaO, SiO_2/Na_2O shows increasing but that of FeO/Fe_2O_3, (Na_2O+K_2O/Al_2O_3 decreasing. The chemical weathering potential index of me granitic rocks is small. The reason is that the granite is strong on the chemical weathering.