벼 立毛中 보리 散播栽培時 적정 立毛數 설정 및 둑새풀 발생의 영향

朱廷一,李喜鳳,申哲雨 충남대학교 농업과학연구소 1999 농업과학연구 Vol.26 No.1

벼 立毛中 보리 산파재배법은 파종노력 절감, 적기파종 및 포장조건 불량시 대체파종 등의 장점이 있지만 관행에 비하여 수량성이 낮고 연차간 變異가 큰 특징이 있다. 수량성을 향상시키기 위하여 栽培安定性을 높이는 관리기술이 요구되는데 우선 입모 확보와 둑새풀 방제체제 확립이 절실히 요구된다. 따라서 立毛率 향상시킬수 있는 요인, 다수확을 위한 적정 입모수 설정 및 둑새풀에 의한 감수정도 등을 구명코자 대전에서 올보리를 공시하여 벼 수확 1일전에 파종하고 이에 대한 결과는 다음과 같다 . 1. 볏짚피복과 진압에 의하여 출현율이 향상되었는데 볏짚피복효과가 진압효과에 비하여 높았고 추가진압으로 11% 증수 효과를 기대할 수 있었다. 2. 단위 면적당 적정보리 立毛數는 507개/㎡로 측정되었다. 3. 둑새풀 발생이 많을수록 수량이 감소되었는데 ㎡당 17~22본 발생시 21.8%, 6~11본 발생시 11.0%가 각각 감수되었다. This experiment was carried out to estimate the appropriate seedling stand and to find out the factors of good establishment and the reason of the reduction of yield by water foxtail. The seedling stands was improved by the ice straw mulching and treading by the tracks of combine. The effect of mulching was higher than the treading. The appropriate seedling stands for example yield were estimated about 507 plants per ㎡ and its yield was 24㎏/10a. The higher density of water foxtail, the less the grain yield; 21.8% by 17 to 22 water foxtail stands per ㎡ and 11.0% by 6 to 11 plants.

후두 미세수술 후 발생한 일시적인 설인신경 및 설하신경 장애 1예

정철우,주영민,박성철,최정섭 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.11

국가정보보호수준 측정 및 활용에 관한 연구

황철중,주용완,민경식,정경호 한국정보사회진흥원 2006 정보화정책 Vol.13 No.3

정보보호 수준을 측정하는 것은 매우 어려운 일로써 정보보호의 영역이 계속 확장됨에 따라 개념자체를 정의하기가 어렵고 아울러 다차원적인 요인을 포함하는 정보보호 지표 선정의 어려움, 시계열적인 통계 데이터 부족, 상이한 정보보호 지표를 하나의 지수로 통합하는 문제가 있기 때문이다. 그럼에도 불구하고 정보보호수준을 계량적으로 측정하기 위한 방법론으로 가장 적합한 것은 지수화하는 것이다. 이는 정책입안자나 정보보호 이해관련자들이 종합적인 측면에서 정보보호수준 목표를 결정하고 실행결과를 평가하는데 용이하기 때문이다. 본 연구의 목적은 정보보호정책 수립 및 평가의 기초 자료로 활용할 수 있는 지수를 산출하기 위한 종합적인 정보보호수준 평가지수 모델을 제시하고 지수를 산출하는데 있다. 지수산출결과, 정보보호수준은 2002년부터 2005년까지를 시계열적으로 보면 매년 평균 5.8%의 증가추세를 보이고 있다. 반면 역기능수준은 2003년 1.25 인터넷 대란으로 증가한 것을 제외하고 꾸준한 감소추세를 나타내고 있다. 특히 정보보호수준과 역기능수준이 발산하고 있어 정보보호정책이 유효하게 작용하고 있다고 판단되어진다.

신체화장애 환자의 스트레스 대처방식 및 심리적 특성

이주연,이무석,윤진상,양종철,문지웅,정해원,은성종 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.6

Objectives : The purpose of this study was to investigate the stress coping strategies and psychological charactehstics, such as combined psychopathology and tendency of symptom interpretation, in patients with somatization disorder. Methods : Thirty patients meeting the criteria of DSM-IV somatization disorder were compared with thirty controls. We evaluated the subjects using Symptom Checklist-90-Revised (SCL-90-R), Somato-Sensory Amplification Scale (SSAS), Symptom Interpretation Questionnaire (SIQ), and The Ways of Stress Coping Questionnaire (SCQ). Independent t-test and Pearson correlation analysis were used. Results : From the results of SCL-90-R subscales, the scores of somatization, obsession-compulsion, depression, anxiety, and psychoticism were significantly higher in patients with somatization disorder than nonnal controls. Somatization disorder patients had greater amplification of physical sensation in SSAS and significantly higher score in physical interpretation of SIQ compared with psychological or environmental interpretation, In the SCQ of somatization disorder patients, we observed generallylower levels of total coping scores than the control group and significant positive correlation between passive coping style of SCQ and psychological interpretation of SIQ. Conclusion : These results show that patients with somatization disorder have various psychopathology, greater amplification of physical sensation, physical interpretation tendency of symptoms, and insufficient copying strategy.

부산 일광산 습지의 식물상

최철만,정은주,이인섭 한국환경과학회 2003 한국환경과학회지 Vol.12 No.12

To investigate the flora of wetland at Mt. Il-Kwang, the helophyte of the mountain was examined. The flora observed was classified into 2 phyla, 15 families, 27 genera, and 34 species. Representative species at the wetland were Drosera rotundifolia, Utricularia racemosa, Utricularia bifida, Eriocaulon miquelianum, and Eleocharis attenuata var. laeviseta. In the lower part of the wetland, water was abundant and soil surface layer was thin, and Eriocaulon miquelianum-Carex canescens-Drosera rotundifolia community were developed. On the other hand, in the upper part of the wetland, water was not abundant and soil surface layer was thick, and Agrostis clavata-Phragmites japonica community were developed. Utricularia bifida and Utricularia yakusimensis were growing abundantly at this wetland, but Utricularia racemosa was few in number and narrow in the distribution area. Eriocaulon miquelianum, a Korean endemic plant, was observed, and Habenaria linearifolia, Spiranthes amoena, and Epipactis thunbergii, the CITES plant, were observed at this wetland. Insectivorous plant such as Drosera rotundifolia, Utricularia racemosa, Utricularia bifida, and Utricularia yakusimensis were also observed.

국내 주요 호수의 육수학적 조사(4): 주암호

김범철,박주현,허우명,임병진,황길순,최광순,최종수 江原大學校 附設 環境硏究所 2001 環境硏究 Vol.18 No.-

In this study limnological characteristics of Lake Juam was surveyed from June 1993 to May 1994 in order to provides important information regarding water resources. Seschi disc transparency, epilimnetic chlorophyll a(chl-a), tatal nitrogen(TN), total phosphorus(TP) concentration and primary productivity were in the range of 2.0~4.5 m, 0.9~13.6 mgChl/㎥, 0.78~2.32N/l, 11~56 mgP/㎥, 270~2,160mgCm^(-2)day^(-1), respectively. On the basis of TP, Chl-a and Secchi disc depth, the trophic state of Lake Juam can be classified as mesotrophic lake. The phosphorus inputs from non-point sources are concentrated in heavy rain episodes during the monsoon season. As a result, phosphorus concentration are higher in summer than in winter. TP loading from the watershed were estimated to be 0.9 gPm^(-2)yr(-1), which correspond to a boundary of the critical loading (1.0 gPm^(-2)yr(-1), which correspond to a boundary of the critical loading (1.0 gPm^(-2)yr(-1)) for eutrophication. From the results of the algal assay, both phosphous and nitrogen act as limiting nutrients in algal growth. The seasonal succession of phytoplankton community structure in Lake Juam was similar to that observed in other temperate lakes. Diatoms(Asterionella formosa and Aulacoseira granulata var. angustissima) were dominant in spring and winter, cyanobacteria (Microcystis aeruginosa, M. sp. and M. viridis) were dominant in warm season. The organic carbon, nitrogen and phosphorus content of lake sediment were 9.5~14.0 mgC/g, 1.01~1.82 mgN/g, and 0.51~0.65 mgP/g, respectively. The allochthonous organic carbon loading from the watershed and autochthonous organic carbon loading by primary production of phytoplankton were determined to be 1,122 tC/yr and 6,718 tC/yr, respectively. To prevent eutrophication of Lake Juam, nutrient management of watershed should be focus on reduction of fertilizer application, proper treatment of manure, and conservation of topsoil as well as point source.

구면삼각법

황철주 신라대학교 자연과학연구소 2005 自然科學論文集 Vol.14 No.-

직무특성과 조직시민행동의 관련성에 관한 연구 : 경력관련 특성의 조절효과를 중심으로

한주희,정진철 한국생산성학회 2001 生産性論集 Vol.15 No.1

This research investigated the moderating role of career-related characteristics on the relationship between job characteristics and organizational citizenship behaviors. Correlation and hierarchical regression were employed to test the hypotheses. The moderating role of career-related characteristics examined using Baron and Kenny's approach. With 3,200 members in a securities company, it was found that (1) job characteristics are positively related with OCB and (2) Career-related characteristics are partial moderators in the relationship between job characteristics and OCB. In particular, age, rank, and job seniority have been investigated as moderator. Some implications of these results are discussed.

볼링장 경영환경에 따른 전략적 특성이 경영성과에 미치는 영향

김철주,박현서 朝鮮大學校 스포츠科學硏究所 2005 스포츠科學硏究 Vol.16 No.-

This study is intended to examine effects of strategic characteristics on business performance in the business environment of bowling alley. To achieve this goal, this study sampled 250 managers who ran a bowling alley in 2005 using random sampling. Of 230 questionnaires returned. 24 were dropped due to omission of some items and finally a total of 206(82.4%) were used for actual analysis. In order to achieve the goal of this study. a questionnaire survey was selected. Research factors included independence factor(internal and external environment related to business of bowling alley), parameters(strategic characteristics such as R&D. marketing, efficiency, diversified management, and cost-leadership), and dependent factor(business performance such as profitability index and qualitative growth). In order to confirm the loading score of instrument. LISREL' maximum likelihood method was used. Its results suggested high convergent validity. Covariance structure model was conducted and the following results were obtained. First. the result of analysing effects of business environment on strategic characteristics suggests that in external environmental factors, growth had a positive effect on R&D, efficiency. and cost-leadership strategies: complexity factors on R&D, marketing, efficiency, and cost-leadership strategies; and dynamics factors on efficiency strategy. In internal environmental factors, program development and introduction had a positive effect on marketing, efficiency. and cost-leadership strategies; personnel and organization on efficiency, and cost-leadership strategies; and financial structure on had a positive effect on R&D. marketing, efficiency, and cost-leadership strategies. Second, the result of analysing effects of strategic characteristics on business performance suggests that R&D strategy had a positive effect on qualitative growth; marketing on qualitative growth: efficiency on profitability and qualitative growth: and cost-leadership on qualitative growth

웹 카메라 서버용 JPEG2000의 EBCOT 설계에 관한 연구

박주현,김영철,홍성훈 전남대학교 전자통신기술연구소 2001 전자통신기술논문지 Vol.4 No.1

In this paper, an EBCOT in JPEG2000 for application to a web camera is designed in VLSI and implemented into a chip. The designed EBCOT extracts contexts from mutual relevance of neighborhood pixels values and previous bit-plane values in a same subband. The contexts are compressed using entropy coding scheme. Two IP modules, a context extracting module and an arithmetic coding module, are modeled in VHDL and synthesised using Synopsys tool, and fabricated using Hyun-dai 0.35㎛ CMOS process.