남부지역에서의 양파 수확, 저장 및 유통실태

권병선,이을태,오용비,정동희,이조진 順天大學校 師範大學 附屬 科學敎育硏究所 1996 科學과 敎育 Vol.4 No.-

This study was carried out to find marketing, storage and harvest of onion in southern parts of Korea from Jan. 1994 to Apr. 1994. Early maturing cultivar harvest between 10th and 20th of May but late maturing cultivar harvest between 10th and 20th of June, this period was busy farming season with a shortage of labor. Early maturing cultivar was send out good directly but late maturing cultivar was send out good after shortage the simple store house with the period 7-9 month, and professional seed production farmer are not in here. We hope that this report stimulates research to investigate for the establishment of not only harvesting practices such as varietal improvement, machanical harvesting and disease resistant variety for the storage.

제주도 토양 방선균의 속 다양성 분포

권오성,박동진,이찬용,김창진 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.4

제주도 전역에서 채집한 59점의 토양시료로부터 총 938주의 방선균을 분리하였다. 분리된 각 균주의 형태적, 생리적 특성을 조사하고 이를 기준으로 속명을 동정하므로써 제주도 지역 토양 방선균의 속 다양성을 비교하였다. 그 결과 Streptomyces 속 방선균이 62.6%를 차지하였으며 Micromonospora 속은 16.4%, Nocardioform 군은 8.6%, Actinomadura 속은 2.2%, Microbispora 속은 1.0% 나머지 Streptosporangium 속은 5.9%이었다. 토양 환경별로 보면, 초지에는 Streptomyces 속과 Micromonospora 속 균주가 풍부하였고, 밭에는 Streptomyces 속과 Micromonospora 속 균주가 풍부하였고, 산림에는 Micromonospora 속과 기타 속 균주가 풍부하였으며 기타 지역과 더불어 방선균의 속 다양성이 풍부한 편이었다. 그리고 특히 자연 동굴 토양에서는 Streptomyces 속의 분포 비율이 높지 않았으며 상대적으로 Nocardioform 균주의 분포 비율이 특히 높았다. Total 938 actinomyete strains were isolated from 58 soil samples collected at Cheju island. All of these isolates were identified to the genus level based on morphological and physiological characteristics. As the result, 62.6% of those isolates were Streptomyces, 16.4% were Micromonospora, 8.6% were Nocardioform group, 2.2% were Actinomadura, 1.7% were Microbispora, 1.6% were Nocardiopsis, 1.0% were Streptosporangium, and 5.9% were the others. As the sources of soil, Streptomyces and Microbispora were abundant in grassland soil, Streptomyces and Micromonospora were abundant in field soil, and Micromonospora were abundant in forest soil. Especially, Nocardioform strains were abundant in natural caves.

어린 가토에서 자가 연골 이식후 연골성장에 관한 실험적 연구

권택근,김태연,정전은,이동진 대한성형외과학회 1992 Archives of Plastic Surgery Vol.19 No.3

Does free transplanted autologous cartilage grow? Until now many autors have published different results about the growth potential of cartilage. Some authors have produced in their study that transplanted cartilages were able to grow, but others showed contradicting results. In this study, authors obtained cartilages from young rabbits'ear, 10 by 10mm in size and divided them into two groups ; the first group was cartilages with perichondrium and the second group was cartilages stripped perichondrium. We transplanted both groups of cartilages in the posterior nuchal area of rabbits. Then numbers of specimens of each group were evaluated and compared for assessment of cartilage growth. After observaton for six months, we took the cartilages from the posterior nuchal area and examined the surface area, the thickness, and the weight and finally confirmed the growth potential of the cartilage by histologic study. The results are as follows : 1, The surface area, the thickness, and the width of the transplanted cartilages were increased significantly in gross specimens and their measured values were statistically significant and cartilages with perichondrium showed more growth than cartilages stripped perichondrium 2. In histologic studies, we observed increased surface activities with numerous proliferatng cells and found no abnormal features compared with normal cartilages. Cartilages with pericondrium were thicker than cartilages with stripped perichondrium

Effect of Fertilizer Levels on Growth Characters, Dry Matter Yield and Nutrient Quality of Forage Rape in Spring Sowing

Kwon,Byung-Sun,Shin,Jeong-Sik,Shin,Dong-Young,Hyun,Kyu-Hwan,Park,Hee-Jin,Sin,Jong-Sup,Seong-Kyu 한국자원식물학회 2003 Plant Resources Vol.6 No.2

To find out the optimum fertilizer level for high yielding variety, Velox, experiment was conducted with 15 compositions of fertilizer levels at the experiment field of forage crop in Sunchon National University from Mar. 2000 to Aug. 2000. The effects of nitrogen fertilizer on plant growth were significant but increasing rate of application in potassium and phosphate fertilizers above 6 kg/a had negligible effects on plant growth. The optimum nitrogen application level of fertilizers turned out to be 16-6-6 kg/l0a of N-P2O5-K5O. Content of crude protein was highest and that of crude fiber such as NDF, ADF, cellulose and lignin were lowest at this rate of fertilizer application. Furthermore, IVDMD was high and dry matter yield were highest at the optimum raterate

광섬유 산란형 센서를 이용한 사회기반시설물의 보안에 관한 연구

권일범,윤동진,이승석 한국비파괴검사학회 2004 한국비파괴검사학회지 Vol.24 No.5

광섬유 ROTDR (Rayleigh optical time domain reflectometry) 센서와 보다 긴 광섬유를 감지광섬유로 사용할 수 있는 광섬유 BOTDA (Brillouin optical time domain analysis) 센서를 구성하고, 이들 각각을 이용하여 중요보안 대상체인 사회기반시설물에 침투하는 침입자를 탐지할 수 있는 기초 연구를 수행하였다. ROTDR 센서의 감지부로는 넓은 면적을 감지할 수 있는 매설형 광섬유 센서 탐지판을 제작하고, 인가된 침입물체의 위치와 무게에 따른신호특성을 고찰하였다. ROTDR 센서는 펄스 폭이 30 ns이고, 광섬유의 길이는 10 km 이상이다. 위치탐지오차는 약 2m 이내였으며, 무게에 따른 탐지능력은 20 kgf, 40 kgf, 60 kgf, 80 kgf의 네 단계를 구분할 수 있음을 알 수 있었다. 넓은 지역에 걸친 침입자의 침투를 감시하기 위하여 수십 km의 광섬유 길이 전체를 감지부로 사용할 수 있는 광섬유 BOTDA 센서를 개발하였다. BOTDA 센서는 한 개의 레이저 다이오드와 두 개의 광전 변조기(electro-optic modulator)를 사용하여 간단하게 구성하였다. 침입자에 의한 광섬유의 변형률 벽화를 탐지하는 실험을 수행하기 위하여 광학테이블 위에 광섬유에 변형률을 인가하기 위한 실험 장치를 설치하여 실험을 수행하였다. 이 실험으로부터 시간간격 1.5 초동안 광섬유 약 4.81 km의 길이를 거리분해능 3 m로 침입자를 탐지할 수 있음을 확인하였다. We have studied the detection techniques, which can determine the location and the weight of an intruder into infrastructure, by using fiber-optic ROTDR (Rayleigh optical time domain reflectometry) sensor and fiber-optic BOTDA (Brillouin Optical time domain analysis) sensor, which can use an optical fiber longer than that of ROTDR sensor. Fiber-optic sensing plates of ROTDR sensor, which are buried in sand, were prepared to respond the intruder effects. The signal of ROTDR was analyzed to confirm the detection performance. The constructed ROTDR could be used up to 10 km at the pulse width of 30 ns. The location error was less than 2 n1 and the weight could be detected as 4 grades, such as 20 kgf, 40 kgf, 60 kgf and 80 kgf. Also, fiber optic BOTDA sensor was developed to be able to detect intrusion effect through an optical fiber of tens of kilometers longer than ROTDR sensor. Fiber-optic BOTDA sensor was constructed with 1 laser diode and 2 electro-optic modulators. The intrusion detection experiment was peformed by the strain inducing set-up installed on an optical table to simulate a11 intrusion effect. I11 the result of this experiment, the intrusion effect was well detected as the distance resolution of 3 m through the fiber length of about 4.81 km during 1.5 seconds.

취학전 아동의 체력 실태와 평가

권영옥,김동권,민춘기,이용인,전종귀,진윤수,홍성표 忠南大學校體育科學硏究所 1995 體育科學硏究誌 Vol.13 No.1

The purpose of this study was analyze children's Physical Fitness and basic rate by observing the change in the heart rate of the 1230 children of five of six years of age. Following conclusions were obtained The muscular strength was relatively low according to places. And the muscular strength of boys was higher than that of girls. The flexibility of girls was higher than that of boys according to places and sexes. The muscular endurance, power, balance and agility of boys were higher than those of girls according to places and sexes. Thus the development of physical fitness was improved with their ages, the physical fitness for physique seemed rather low. So the programs of physical plays for children's physical fitness ought to be developed and physical play showed to be done at kindergarten school.

토지이용의 효율성 제고에 관한 연구 : 묘지공원의 개선방안을 중심으로 on the cemetery park

권준오,김순곤,설동진 조선대학교 국토개발연구소 1994 국토개발연구 Vol.14 No.2

As unbanization and population have been increasing, cometerys have caused a lot of social problems. In order to improve these, a cemetery park with various functions like cemetery and park should be made. A cemetery park can provide neighboring people as well as cemetery users with spaces for relaxation and graves. Therefore the purpose of this study is to suggest basic directions for efficient policy which can change people's way of thinking about a propitious grave site and form new land culture. The conclusions are : First, in the aspect of system, laws related to burial and cemetery-grave size, and structures-should be changed in pace with people's consiousness and the rationalization of land. Second, in the aspect of administration, roads to cemetery parks, landscape and facilities should be prepared. And the plan should be made which neglected or unknown graves can be checked to be put in charnel. Besides by analyzing good and bad points of old cemetery, better ones should be made. It should take the department concerned and experts to manage the efficient policy for cemetery. Third, in the aspect of people's consciousness constant publicity activites about the efficient use of land will help to solve a sense of incompatibility caused by using excessive use of cemetery. Fourth, as this research shows, enough greenbelt and parking areas must be prepared with landscape, facilities and management improved.

음향방출을 이용한 저어널 베어링의 조기파손감지(Ⅱ) : Part Ⅱ : Intervention of Foreign Particles in Lubrication 윤활유 이물질 혼입의 영향 및 감시

권오양,윤동진,김경웅,정민화 韓國非破壞檢査學會 1994 한국비파괴검사학회지 Vol.14 No.2

일반적으로 회전기기의 저어널 베어링 부분은 윤활유 공급의 부족이나 윤활층에 이물질이 혼입되면 시스템의 고장이나 가동중단 등의 원인이 되기도 한다. 따라서 베어링 손상에 기인하는 사고와 관련된 안전운전 문제와 유지비용의 절감을 위해 여러가지 파괴 및 비파괴시험법들이 사용되어 왔다. 본 연구에서는 저어널 베어링에서 가장 발생하기 쉬운 윤활층에의 이물질이 혼입에 의해 야기되는 베어링 파손의 조기검출을 위해 음향방출 기술을 적용하였으며, 전보의 연구에 이어 좀더 정량적이고 체계적인 실험을 수행하였다. 실험실용으로 직접 제작한 모의베어링 시스템을 이용하여 여러 형태의 인위적인 이물질 흔입 상태를 만들어 실험하였으며 베어링 손상 및 결함 형태의 해석을 위해 AE rms level, 파형분석, AE 변수 등의 여러 파라메터를 사용하여 분석 고찰하였다. 그 결과 AE rms level의 변화가 이물질 흔입의 영향에 민감함을 보여주었으며 AE변수등 다른 정보들로부터 손상 원일별로 신호형태를 확인할 수 있었다. Journal bearings in the rotating machineries are vulnerable to the contamination or the insufficient supply of lubricating oil, which is likely to be the cause of unexpected shutdown or malfunction of these systems. Various destructive and nondestructive testing methods had been used for the reduction of maintenance cost and the operational safety problems due to the accidents related to bearing damages. In this experimental approach, acoustic emission monitoring in employed to the detection of incipient failure caused by intervention of foreign particles most probable in the journal bearing systems. Experimental schedules for the intervention of foreign particles was composed to be more quantitative and systematic than last study in consideration of minimum oil film thickness and particle size . The experiment was conducted under such designed conditions as inserting alumina particles to the lubrication layer in the simulated journal bearing system. Several parameters such as AE rms level, waveform, AE energy distribution and other AE event parameter are used for analysis and characterization of damage source. The results showed that the history of damage was well correlated with the changes of AE rms level and the types of damage source signal can be verified using other informations such an waveform, distribution of AE parameter etc.

몇 가지 항진균제가 Aspergillus fumigatus에 의한 대식세포의 Cytokine 생산에 미치는 영향

권은영,박철민,박선희,최수미,이동건,유진홍,신완식,최정현 대한감염학회 2007 감염과 화학요법 Vol.39 No.1

배경 : 현재 임상에서 사용되는 서로 다른 계열의 항진균제가 면역세포인 폐 대식세포(alveolar macrophage)에서의 cytokine 생산과 nuclear factor- κB (NF- κB)활성에 미치는 영향을 시험관내에서 파악하고 그 의미를 추론해 보고자 하였다. 재료 및 방법 : AmB, MF, ITZ 등 세 가지 항진균제가 쥐의 폐 대식세포인 RAW264.7 세포의 생존에 미치는 영향과, 이들 항진균제의 전처치가 Aspergillus fumigatus conidia 자극에 의한 RAW264.7 세포에서의 TNF-α, IL-10 생산, NF-κB 활성에 미치는 영향, 그리고 GMCSF와의 상승 작용 등을 WST-1, ELISA, western blot assay를 이용해 통해 측정하였다. 결과 : AmB, MF, ITZ 모두 농도 의존적으로 RAW264.7 세포의 생존을 감소시켰다. A. fumigatus conidia 자극으로 RAW264.7 세포에서 TNF-α 생산이 증가하였으며, 세포 생존에 영향을 미치지 않는 농도의 AmB를 전처치하고 conidia로 자극한 경우 TNP-α 생산에는 차이를 보이지 않았으나, MF와 ITZ을 전처치한 경우에는 TNF-α 생산이 감소하였다. GM-CSF는 AmB 전처치 및 A. fumigatus conidia 자극에 의한 TNF-α 생산에 상승 효과를 보였으나, MF, ITZ은 GM-CSF에 의한 상승 효과를 보이지 않았다. IL-10은 AmB에 의해 생산량이 증가하였으며 GM-CSF와 동시 투여시 IL-10 생산이 유의하게 상승하였다. MF와 ITZ 역시 RAW264.7 세포에서 IL-10 생산을 유도하였으나 AmB에 비해 상승폭이 적었으며 GM-CSF와의 상승 효과는 관찰되지 않았다. A. fumigatus conidia는 NF- κB를 활성화하였으며 항진균제와 GM-CSF 등 약제 처치에 따른 NF-κB의 활성 정도는 분비된TNF-α와 IL-10의 생산 정도와 상관관계를 보였다. 결론 : AmB, MF, ITZ 등 본 연구에 사용된 항진균제는 시험관내에서 A. fumigatus conida로 자극하는 RAW264.7 세포에 전처치함으로써 염증성 cytokine인 TNF-α의 생산을 감소시키고 항염증성 cytokine인 IL-10의 생산을 증가시키는 면역 조절 효과를 나타낼 수 있음이 관찰되었다. 추후 약제간의 면역조절 기능 차이가 항진균효과에 미치는 영향 및 약제에 따른 면역 조절 경로 등에 대한 연구가 필요할 것으로 사료된다. Background : We wanted to evaluate the immunomodulatory effect of three antifungal agents, amphotericin B (AmB), micafungin (MF), itraconazole (ITZ), in the aspect of cytokine production and expression of nuclear factor-κB (NF-κB) in the Aspergillus fumigatus conidia treated-RAW264.7 cells, a murine alveolar macrophage cell line. Materials and Methods : We evaluated cytotoxic effect of antifungal agents using commercial cell proliferation assay. Tumor necrosis factor (TNF)-α and interleukin (IL)-10 production according to stimulation (control, A. fumigatus conidia only, conidia + antifungal drug, conidia + antifungal drug + GM-CSF) was evaluated and compared each using commercial ELISA method. NF-κB activation was evaluated by western blot analysis. Results : AmB, MF, ITZ showed dose-dependent cytotoxic effect on the tested cells. Stimulation of cells by A. fumigatus conidia induced TNF-α production. Pretreatment of AmB at concentration not affecting cellular survival did not change the production of TNF-α compared to conidia treated cells, but pretreament of MF or ITZ showed reduced amount of TNF-α production compared to conidia treated cells. AmB also showed synergistic effect on TNF-α production when simultaneously treated with GM-CSF. IL-10 production was markedly increased when the cells were treated with AmB with conidia. MF and ITZ induced less increase of IL-10 production than AmB. AmB also showed synergistic effect on the production of IL-10 when treated with GM-CSF simultaneously. A. fumigatus conidia enhanced expression of NF-κB. The degree of NF-κB expression was associated with the amount of TNF-α and IL-10 produced. Conclusion : The antifungal agents we used in this experiment showed that decreased TNF-α production and increased IL-10 production from the RAW264.7 cells stimulated by A. fumigatus conidia after pretreatment of antifungal agents. But more studies, such as the association between immunomodulatory effect, antifungal activity and difference of signal pathway of cellular activation according to drugs should be performed.

Yield of Rice Affected by Meteorological Elements in Yeosu Area of Korea

Kwon,Byung-Sun,Choi,Seong-Kyu,Shin,Jeong-Sik,Shin,Jong-Sup,Shin,Dong-Young,Hyun,Kyu-Hwan,Kuk,Yong-In,Park,Hee-Jin 한국자원식물학회 2003 Plant Resources Vol.6 No.2

This study was conducted to investigate the relationships between yearly variations of meteorological elements and yearly variations of productivity in rice. In addition, correlation coefficients among yield and yield components were used to find out the relationships between meteorological elements and productivity. Yearly variation of the mean air temperature in May was large with coefficients of variation(C.V.) of 25.0%, but the variation of the duration of sunshine in May were relative small. No. of panicles per hill and 1,000 grains wt. of brown rice were great with C.V. of 21.1, 19.7%, respectively, brown rice yield show more or less C.V. of 5.5% and milled rice show still less variation. Correlation coefficients between temperatures in period of cultivation from May and yield were positive correlations. Correlation Coefficients between precipitation in period of cultivation from Sep. to Oct. and yield are positive correlations. Correlation coefficients amount the panicle length, no. of panicles, no. of spikelets, ratio of ripened grains, 1,000 grains wt. of brown rice, milled rice yield, brown rice yield and milled rice yield were positively significant at the level of 1 %, respectively.