영산강 상류일부의 水質汚染에 관한 調査硏究 : 산동교를 중심해서

류일광,이치영,강영식,김관천 광주보건대학 1990 論文集 Vol.15 No.-

Water quality of Young San river was examined for 3 months from April 12, 1989. to Jun 12, 1989. For checking the water quality 4 sampling position were selected. The results we obtained are as follows. 1. The average for Young San river was 6.6∼7.4 of pH, 3.6∼8.7mg/ℓof Dissolved dxygen (DO), 18.67∼33.47mg/ℓof chemical oxygen demand (COD), 47.66∼250mg/ℓ of suspended solid (SS), 37.83∼114.66mg/ℓ of N-hexane abstraction maters, 5.16∼6.63mg/ℓ of BOD. 2. The monthly average for Young San river was 6.5∼7.5 pH,3.5∼10.4mg/ℓ of DO. 15.07∼48.90mg/ℓ COD, 6.2∼10.2 mg/ℓ of BOC, 2∼250mg/ℓ of SS. 2∼124mg/ℓ of N-hexane abstraction mater, in April, 6.2∼7.5 of pH, 3.5∼8.2mg/ℓ of DO, 2.4∼5.7mg/ℓ BOD, 18.21∼32mg/ℓ of COD, 16∼123mg/ℓ of SS, 9.5∼95mg/ℓ of N-hexane abstraction matter, in May 6.9∼7.5 of pH, 3.8∼7.50mg/ℓ of pH, 3.8∼7.50mg/ℓ of DO, 4.0∼5.8mg/ℓ of BOD, 18.23∼of COD, 123∼163mg/ℓ of SS, 102∼125mg/ℓ of N-hexane abstraction matter in Jun. 3. The sampling positions averag for Young San San river was 6.9∼7.5 of pH, 7.5∼10.4mg/ℓ of DO, 15.07∼22.8mg/ℓ of COD, 3.5∼6.2mg/ℓ of BOD, 2∼125mg/ℓ of ss, 2∼102mg/ℓ of N-hexane abstraction matter in posiction 1.7.3∼7.5 of pH, 6.0∼7.5mg/ℓ of DO, 46.25∼52.05mg/ℓ of COD, 2.4∼8.5mg/ℓ of BOD, 58∼123mg/ℓ of SS, 62∼120mg/ℓ of N-hexane abstration matter in position 2. 6.2∼7.3 of pH, of pH, 4.23∼6.7mg/ℓ of DO, 4.9∼7,9mg/ℓ of BOD, 18.23∼36.75mg/ℓ of COD, 89∼152mg/ℓ of SS, 75∼123mg/ℓ of N-hexane abstraction matter, in position 3, 6.5∼7.2 of pH, 4.0∼10.2mg/ℓ of BOD, 3.5∼3.82mg/ℓ of DO, 23.6∼52.32mg/ℓ of COD, 123∼250mg/ℓ of SS, 95∼125mg/ℓ of N-hexane abstraction matter in position 4.

젊은 남자 성인의 칼슘과 철의 영양상태에 관한 연구

박영숙,곽주영,권지혜,류화라 순천향대학교 기초과학연구소 2002 순천향자연과학연구 논문집 Vol.8 No.1

A survey was performed to 174 male young men who were living alone(40 persons) and shared living with friends(4143 persons) in Chungnam province. Their average age was 22.6 years old, height 171.8 ㎝, and weight 65.6 ㎏. Their daily calcium intake level was averaged 271.9±169.1 ㎎, which was 38.8 %RDA. Comparing calcium intake of each mealtime, breakfast, lunch, dinner, and snacks were composed of 18.6%, 30.0%, 34.0% and 17.4%, respectively. Their daily iron intake level was averaged 8.9±10.8 ㎎, which was 74.3 %RDA. Comparing iron intake of each mealtime, breakfast, lunch, dinner, and snacks were composed of 15.4%, 33.6%, 36.3% and 14.7%, respectively. These results suggested that deficiency of the two minerals in young male adults were severe and the nutrient qualities were also poor, no matter of their living alone or with accompanies. The deficiency was more profound in calcium than iron. And we observed iron nutriture differed significantly according to their living status, such as iron intake and its %RDA were significantly worse in single living subjects than the others. However calcium did not show significant difference. We concluded that shared living environment in young male adults could possibly improve their dietary mineral intake levels.

규산질 비료의 참외 흰가루병 발생 억제 효과

류나현,최미영,류연주,조현종,이용세,이영득,정종배 한국환경농학회 2003 한국환경농학회지 Vol.22 No.4

토양에 시용한 규산의 참외 흰가루병에 대한 직접적인 억제 효과와 살균제의 방제 효과를 증진시킬 수 있는 보조효과를 조사하였다. 규산질 비료의 처리는 철가루병 균에 의해 감염된 참외 잎에서 균사의 생장과 분생포자의 형성을 억제함으로써 흰가루병 발생을 일부 억제할 수 있는 것으로 조사되었다. 물론 규산질 비료 자체만의 흰가루병 발생 억제 효과는 매우 미약한 수준이었으나 살균제의 흰가루병 방제 효과를 크게 증진시켜줄 수 있는 것으로 나타났다. 따라서 현재 농가 현장에서 밝혀지고 있는 규산질 비료의 참외 병해 발생 억제 효과는 주로 이러한 살균제의 효과를 증진시킬 수 있는 규산의 보조적인 작용에 기인하는 것으로 판단된다. 따라서 토양에 대한 적절한 수준의 규산질 비료의 시용은 살균제의 방제 효과 증진을 통하여 과다한 약제의 사용과 그에 따른 부작용을 경감시킬 수 있을 것으로 보인다. 규산질 비료의 흰가루병 발생 억제 효과를 증진시키기 위해서는 앞으로 병의 발생을 최대로 억제할 수 있는 참외 잎 중의 적정 규소 함량에 대한 검토 등의 추가적인 연구가 필요할 것이다. Silicon is known to accumulate in plants and results in greater resistance to diseases and insect pests. In this study, we investigated the effect of silicate fertUizer applied in soil on the development of powdery mildew of oriental melon Oriental melon seedlings of four-leaf stage were transplanted and grown in a plastic film house. silicate fertilizer was applied to maintain soil available SiO₂ level of 200 ㎎/㎏ one week before transplanting. Fungicide trinumizol was sprayed three times; one, two, and three weeks after transplanting. Sphaerotheca fuliginea was inoculated 2 weeks after transplanting. The number of infected leaf and the number of fungal colony in leaves were measured one, two, and three weeks after the inoculation. Three weeks after the fungal inoculation, in the treatment of fungicide triflwnhl, infected leaf numbem and number of colony per leaf were reduced by 10 and 58% respectively. In the silicate fertilizer treatment, infected leaf numbers and numbers of colony per infected leaf were suppressed only by 6 and 16%, respectively, and the efficacy was lower than that of the fungicide triflumizol. The combined treatment of silicate fertilizer and the fungicide suppressed powdery mildew more effectively, and infected leaf numbem and numbem of colony per leaf were reduced by 31 and 80%, respectively. These results indicate that although silicate fertilizer itself is not much effective in the suppression of powdery mildew, it can significantly enhance the efficacy of the fungicide.

해운경기가 항만지역경제에 미치는 영향: 부산과 인천지역 비교를 중심으로

류은영(Ryu, Eun-Young),이상원(Lee, Sang-Won) 한국경영교육학회 2020 경영교육연구 Vol.35 No.1

[연구목적] 본 연구에서는 상대적으로 연구가 부족했던 BDI와 지역별 경제변수들(고용률, 실업률, 수출액, 수입액, 광공업생산지수, 컨테이너 물동량)간의 연관성을 실증분석 하여, 시사점을 제공하였다. [연구방법] 본 연구는 BDI와 지역별 경제변수 등에 대한 관련 논의, 기존에 수행되었던 연구들을 검토하였다. 본 연구에서는 부산과 인천지역을 대상으로 2012년 1월부터 2019년 9월까지의 기간 동안 BDI와 지역별 경제변수들 간의 관련성을 비교분석 하였다. 이를 위해, 상관관계분석과 그랜저인과관계분석 등을 이용하였다. [연구결과] BDI와 지역별 경제변수들 간의 관련성을 비교한 연구결과를 보면, 부산과 인천지역 모두 동일하게 나타났다. 상관관계분석결과, BDI와 실업률 및 수입액 간에는 음(-)의 관계, 다른 변수와는 양(+)의 관계를 보였다. 컨테이너 물동량은 실업률과는 음(-)의 관계를, 다른 변수와 양(+)의 관계를 보였다. 그랜저인과관계분석결과, BDI는 광공업생산지수와 컨테이너 물동량을 선행하고 고용률과 컨테이너 물동량은 서로 양방향으로 선행, 실업률과 수입액은 컨테이너 물동량에 대해 선행성을 가지는 것으로 나타났다. 다만, BDI는 부산에서는 지역경제변수들에 대해 선행성을 가지고 인천에서는 반대로 지역경제변수들이 BDI를 선행하는 것으로 나타났다. [연구의 시사점] 본 연구를 통해 확인한 이론적․실무적 시사점으로는, 부산지역 경제가 BDI에 의한 영향을 보다 많이 받기 때문에 지역 경제정책을 국제 해운업 상황에 따라 시의성 있게 실시해야 할 것으로 보인다. 또한, 컨테이너 물동량이 항만 지역경제에 미치는 영향이 상당하므로 이를 고려한 정책이 필요할 것으로 보인다. [Purpose] This study empirically analyzes the relationship between BDI and regional economic variables, such as employment rate, unemployment rate, exports, imports, industrial product index, and port container volumes, which were relatively lacking in research. [Methodology] This study reviews related studies on BDI and regional economic variables, and previous studies. In this study, we compared and analyzed the relationship between BDI and regional economic variables during the period from January 2012 to September 2019 in Busan and Incheon. For this purpose, correlation analysis, Granger causality analysis, and variance decomposition were used. [Findings] The results of the study comparing the relationship between BDI and regional economic variables are as follows. The same was true for both Busan and Incheon. As a result of the Granger Causality Analysis, BDI preceded the industrial product index and the port container volumes, and the employment rate and the port container volumes were bi-directional. However, BDI has precedence over regional economic variables in Busan and regional economic variables precede BDI in Incheon. [Implications] Therefore, this study provides theoretical and practical implications by empirically analyzing the relationship between BDI and regional economic variables, which have been relatively overlooked.

消費者의 衣服購買時 品質表示 制度의 認識度와 表示內容의 實態調査

殷英子,柳德桓,咸玉相 啓明大學校 生活科學硏究所 1988 科學論集 Vol.14 No.-

The purpose of this study was to investigate the purchasing pattern toward the garment's label and to find the problem of content's label. The questionnair method was used to obtained the data which was made by a result of self-administered questionnair, the lot of random sample for this paper was 390 subgects and the problem in the content's label was contemplate as the results of chemical method. The results indicate that; 1. The young's class, high scholarship and the small income earners had the more interest on the ready made clothes than the case of the contrary. 2. The group of 40∼50 year's old had the most interest in the garment label and the second case was the large income earner's and high scholarship's group. 3. An item of the interest in the label was the price and the size, everyone had understood generally the label contents, especially group of young's years all more than old year's, and the mark of Korean standard a little more than international standard's. 4. Percentages of the fibre blending were incorrected, especially mark's term was out of keeping by reason of the a bombastic advertisment.

가교된 PS 코어와 PBA 및 PS 셸로 이루어진 코어-더블셸형 나노입자의 압력가소성

박지영(Ji Young Park),류상욱(Sang Woog Ryu) 한국고분자학회 2014 폴리머 Vol.38 No.1

가교결합된 코어와 PBA, PS 더블-셸을 갖는 고분자 나노입자를 제조하고 압력가소 특성을 평가하였다. 더블-셸을 합성하기 위해 먼저, 가교된 코어입자를 St, DVB의 에멀션 중합을 통해서 제조하였으며, 이어서 PBA가 내부셸, PS가 외부셸을 형성하도록 3 단계의 연속적인 에멀션 중합을 수행하였다. 제조된 더블-셸 나노입자는 가교된 코어의 존재에도 불구하고 PBA, PS 간 압력상용성을 발견할 수 있었으며, 25 ℃에서 반투명한 시편으로 압출성형될 수 있었다. 기계적 물성측정 결과, 성형물의 탄성계수는 더블-셸 나노입자의 크기에 직접적으로 연관됨을 알 수 있었다. 또한 PBA가 과량으로 첨가된 시편의 경우, 25 ℃에서 재가공이 성공적으로 진행되어 5회의 연속된 압출성형에도 불구하고 0.55MPa의 탄성계수와 1.81 MPa의 파단강도를 얻을 수 있었다. Polymer nanoparticles with cross-linked core and PBA/PS double-shell were synthesized and their baroplasticproperties were characterized. PBA/PS, the inner and outer shell with cross-linked core consisting of St and DVB weresynthesized by three-stage emulsion polymerization. The obtained materials exhibited pressure-induced mixing of theircomponents and could be processed at 25 ℃ by compression molding which means there was no effect of the presenceof cross-linked core. Interestingly, the Young`s modulus of molded objects has found to be affected strongly by the sizeof double-shell nanoparticles. Furthermore, the molded object of higher PBA content was successfully recycled 5 timesat 25 ℃ and showed 0.55 MPa of modulus and 1.81 MPa of strength at break.

농장 사육되는 타조에서 나타난 다리 기형의 증례 보고

최종윤,손화영,전무형,조성환,김혜성,류시윤,박배근,이영원,윤원기 충남대학교 수의과대학 동물의과학연구소 2001 動物醫科學硏究誌 Vol.9 No.-

Two farmed young ostrich chicks were applied to pathology laboratory at Chungnam National University. Grossly, one ostrich showed rotated tibiotarsus, the other showed rolled toes. Case 1 ostrich was hypertrophy of fibualis longus and tibial cranialis tendon and gastrocnemius tendon in crus, inflammation of flexor digitorum longus. In histopathological views, myocytes of fiburalis longus were showed hypertrophy and hyperplasia. It is not found any specific feature in X-ray of the case 2 ostrich. Limb deformities were detected frequently in farmed ostrich chicks in 2- to 3 weeks old. Limb deformities were an important cause of mortality in farmed ostrich chicks during the first 10weeks after hatch. Cause of limb deformities were considered a nutrition problem.

石炭, 洋灰關聯産業이 嶺東地域經濟에 미치는 波及效果 分析

박형래,강영갑,양정식,류한천 강릉대학교동해안지역연구소 1994 東海岸硏究 Vol.5 No.1

본 논문의 목적은 지역산업연관표를 이용하여 영동지역의 산업연관 관계를 계량적으로 분석하는데 있다. 이러한 산업연관 분석방법은 영동지역의 산업상호간 경제활동과 구조적 특징을 체계적으로 분석하고 장래의 산업 변화에 대한 예측을 가능하게 한다. 본연구의 결과에 나타난 몇가지 중요한 점은 다음과 같다. 첫째, 석탄, 양회산업은 지역산업연관효과가 매우 높은 수준으로 측정됨으로써 이들 특화산업이 지역발전의 선도산업으로서 중요한 역할을 수행하고 있음을 보여주고 있다. 둘째, 이들 두 산업이 영동지역내에서는 중요한 산업이지만 양회산업의 경우 지역전체 생산에서 차지하는 비중이 매우 높은 산업임에도 불구하고 고용승수로 측정되는 고용효과 측면에서는 그 영향이 그리 크지 않은 것으로 나타났다. 이것은 시멘트 산업이 자본집약적인 장치산업으로서 자본의 규모에 비해 고용자를 많이 사용하지 않기 때문인 것으로 평가된다. The purpose of this study is to analyze the quantitative characteristics of the Young-Dong regional economy in industrial interleatedness by using the 1990 I-O table. The analysis of this structural character and industrial interrelatedness makes it possible to estimate the current structural problems and future prospects of Young-Dong regional economy. The findings of this study can be summarized as follows: 1)The coal mining and cement industries sector have relatively high and wide-spreading positive impacts on the regional output and income. 2)Above two sectors showed different impacts pattern on the employment. Coal mining sector gives relatively higher impacts on the regional employment but cement industry sector gives lower impacts on the regional economy because cement industries sector is labor saving industries with large equipment requirement.

Helicobacter pylori와 대장균의 Shuttle Vector 개발

조명제,이우곤,이상룡,김경희,안영숙,김성희,김현주,류복덕,최여정,윤영혜,백승철,전영석,이광호 경상대학교 유전공학연구소 1997 遺傳工學硏究所報 Vol.16 No.-

In this study, a vehicle vector using cryptic plasmids was constructed for gene transfer in Helicobacter pylori. pHP51(3.9 kb) and pHP489(1.2 kb) were selected for constructing vectors from cryptic plasmid of H. pylori isolates in Korea. The HindⅢ-digestedDNA fragment(1.2kb) of pHP489 and 1.6kb DNA fragment of pHP51 were ligated with a kanamycin resistance gene(aph3'-Ⅲ) from C. jejuni to produce the recombinant plasmids pHP489K and pHP51K, respectively. Transformation frequency of pHP51K by electroporation was low. But pHP489K could be effectively transformed into various H. pylori strains. In order to design an intermdiate vehicle vector for gene transfer into H. pylori, pBlueHP489K was prepared by recloning pHP489K DNA into pBluescript and pTZ19R vector. This vector permitted the DNA fragment containing pHP489 sequence, aph3'-Ⅲ, and cloned DNA to be cut and self-ligated in the SacⅠ site after cloning. ureA and ureB gene were inserted into pBlueHP489K, resulting in pBlueHP489K/AB. The DNA fragment containing pHP489, kanamycin resistance gene(aph3'-Ⅲ), and urease structural gene was cut away from pBlueHP489K/AB and self-ligated to generate pBlueHP489K/AB. pBlueHP489K/AB made urease-negative H. pylori strains restore their urease activity. By this experiment, pBlueHP489K was confirmed to be the vehicle system for transferring H. pylori genes.

습관성 흡연여성에서 후측 수부에 발생한 Buerger씨병

김삼,이남호,육청미,최영진,백대균,홍경순,두영철,한규록,오동진,유규형,임종윤,이광학,이영 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.7