인삼 선발계통의 지역적응성 검정

Bong Jae Seong,Sun Ick Kim,Ka Soon Lee,Moo Geun Jee,Su Dong Kim,A Reum Kwon,Hyun Ho Kim1,Young Chang Kim 한국약용작물학회 2017 한국약용작물학술대회 발표집 Vol.2017 No.05

Background : For cultivation of varieties of ginseng, the pure line selection method, which is to select the best among those cultivated in farms for pedigree breeding, replicated yield trials and regional adaptation trials before registering as a new variety, is widely used. Although there are 25 registered varieties of ginseng in Korea, the quality of ginseng is declining together with the amount of harvest being decreased by 15 - 20% due to the heat injuries and diseases from the warming & abnormal climate. Thus, the needs for development of disaster-resistant varieties with better chances of surviving through high temperature, salts and disease are increasing. Therefore, this study is to cultivate disaster-resistant varieties among those selected for their disaster tolerance and salt tolerance through regional adaptation trials. Methods and Results : As a result of examining the growth characteristics of the selected 2 - 5 year old varieties used in the study, among the 5-year old crops, Goryeo 4 and Eumseong 5 showed superior growth in both above and below aerial parts, and among the 4-year old crops, Eumseong 11 and Cheonryang showed superior growth while the growth in the below aerial parts were satisfactory in the order of Cheonryang > Eumseong 10 > Eumseong 11 > Eumseong 9. Among the 3-year old crops, the most superior growth in both above and below aerial parts was observed in Eumseong 14 with the weight of the below aerial part, root diameter and taproot length at 13.8 g, 11.8 ㎝ and 6.2 ㎝ respectively. Among the 2-year old crops, Eumseong 10 showed the most superior growth in both above and below aerial parts. Conclusion : Based on the above results, Goryeo 4 and Eumseong 5 among the 5-year old crops, Eumseong 11 among the 4-year old crops, Eumseong 14 among the 3-year old crops and Eumseon 10 among the 2-year old crops showed the most superior growth among the selected varieties. The growth characteristics of both above and below aerial parts in each year will continuously be monitored.

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

24주간 추적하는 임상 연구에서 한국인 남자 알코올 의존 환자의 비재발률

강철중,김성곤,남궁기,조동환,이병욱,최인근,최용성,박성봉,제영묘,김현경,김성연 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.1

Objetives : In order to provide useful data tbr the further clinical studies with Korean alcohol-dependent patients, enrollment and non-relapse rates were investigated while alcohol-dependent patients wcre followed up for 24 weeks. Methods : The subjects of this study were alcohol-dependent male patients who, for the first time, visited a hospital among 3 groups of hospitals, University Hospital, General Hospital or Mental Hospital, or those who needed to be followed up after discharge from those hospitals. After assigning 12 subjects to each hospital, we investigated enrollment and non-relapse rates while cognitive-behavioral therapy and pharmacotherapy were provided. Results : 1) Forty-eight patients were enrolled and the rate of enrollment was 36.4%. The enrollment rate in the University Hospital group was 52.1%, in the General Hospital group 50.0%. and in the Mental Hospital group 10.4%. 2) In 48 patients, non-relapse rate was 27.1% at 12 week and 18.8% at 24 weeks after starting follow-up. It was 24.4% and 20.0% at 12 and 24 weeks, repectively, in the University Hospital group while the General Hospital group showed 33.3% and 16.7%, respectively, and the Mental Hospital Group showed 20.0% at both 12 and 24 weeks. Conclusion : These results provide important data for further clinical studies of Korean alcohol-dependent patients.

LMC로 덧씌우기 보수된 RC보의 계면응력에 관한 연구

김현오,김성환,김동호,이봉학 江原大學校 産業技術硏究所 2004 産業技術硏究 Vol.24 No.A

Each year, new technological advancements for repair-purpose are being introduced to overlay the old deterioration of RC bridge deck at highway by latex-modified concrete. The days may come when this old problem will be successfully resolved. While the experimental works and researches are very active at both laboratory and field, only a few theoretical studies were performed on interfacial problems, especially on stress distribution and concentration of RC beam overlayed by latex-modified concrete. The repaired and strengthened structures would induce a premature failure due to the stress concentration at the adhesive layer of different material before the design expected failure. This paper investigated and proposed an analytical model for predicting interfacial shear and normal stresses of RC beam repair-purpose overlayed by latex-modified concrete. This would be used for predicting interfacial stresses and preventing premature failure at interfaces. This study modified Smith-Teng method for applying to cementitious repairing material, which was based on a direct governing equation and linear-elastic approach for interfacial normal and shear stresses. The proposed theoretical model was verified using commercial FEA program, LUSAS, in terms of interfacial stresses predicted by the proposed model and calculated by LUSAS.

釜山地域 主要企業그룹의 發展過程과 成長戰略

金峯寬,金星煥,李明國 東亞大學校 經營問題硏究所 1994 經營論叢 Vol.15 No.-

Mg(OH)₂를 이용한 습식탈황에서 폐슬러리 처리특성연구

김근범,이은덕,박영성,임봉수 大田大學校 環境問題硏究所 1998 환경문제연구소 논문집 Vol.3 No.-

Properties analyses and treatment characteristics of waste slurry discharged in the wetted flue gas desulfurization process using Mg(OH)₂as a absorbent were investigated. Aeration and coagulation test were carried out to evaluate variation of some factors such as COD, SS, T-N, etc. related to waste slurry treatment. The hydraulic retention time(HRT) and coagulant dosage rate were applied as operating variables in experiment. As experimental results, the reduction effects of COD, SS in aeration test were distinct, due to oxidation of SO₃ and floc, formation of suspended solids. It was also found that the reduction efficiencies of SS and T-P in coagulation test are higher than 90%.

Silver Nitrate溶液의 精巢內 注射에 衣한 家兎의 去勢效果에 關한 硏究

金鐘洙,趙聖均,李殷奉 順天大學校 1984 論文集 Vol.3 No.1

This experiment was carried out to develop a Chemical castration with a single intratesticular injection of silver nitrate solution in domestic rabbits. A total of 44 bucks of 4 to 5 months old were alloted at random into the following 4 groups; 9 bucks for controls; 6 bucks for 0.3㎖ injection of 1% AgNO₃to each testis; 14 bucks for 0.5㎖ injection of 1% AgNO₃: and 15 bucks for 0.5㎖ injection of 5% AgNO₃. Changes in body weight, testicuar width in scrotum sac, weight and histology of testis at slaughter, blood cell counts and serum levels of testosterone of the buck were measured for 4 weeks after treatment. The results obtained were summarized as follows: 1. Compared with the controls the body weght gain of bucks treated with AgNO₃was not significantly (P<0.05) different during the experimental period for 4 weeks. 2. The white blood cell counts were increased slightly but insignificantly 1 day after injection of AgNO₃and then decreased to normal level soon. There was no significant change in red blood cell counts in the bucks treated with AgNO₃. 3. Most of the testis of bucks were swollen significantly (P<0.05) by 6 to 12㎜ in the width of testis in scrotum sac 1 day after injection of AgNO₃, but decreased in size 3 days after treatment and regained their normal size in a week. 4. The AgNO₃injection was not sufficient for same bucks to be successfully castrated. Only 60.0 to 66.7% of the bucks treated with 0.5㎖ dose of 1 to 5% AgNO₃showed the serum level of testosterone of lower than 0.1ng/㎖ by 28 days after treatment. This was considered to be resulted from the fact that not a whole but a limited part of testis injured by this scheme of injection. 5. The weight of testis of the bucks showing less than 0.1ng/㎖ of serum testosterone by 7 to 28 days after treatment was not significantly (p<0.05) different between the treatments of periods after treatment. This result indicates that the period of 4 weeks might be not sufficient for the injured testicular tissue to be necrotized and absorbed. 6. The extent of damage of testis by injection of AgNO₃was much different by the local effect in the parts of distance from injection. A proximal portion of testis injected with AgNO₃was fully damaged and necrotized, but a distal part of testis was not severely damaged.

비정질 Co₁-xPx 합금의 결정화 메카니즘

김성봉,김인호,정순영 慶尙大學校 1992 論文集 Vol.31 No.2

The Crystallization mechanism of electrodeposited amorphous Co1-xPx films with 16.2~18.3%P was studied with Differentisl Scanning Calorimetry and X-Ray Diffractometer. Form these experiments, we concluded that the amorphous Co1-xPx films were crystallized by eutection reaction. The activation energies of annealed sample obtained by the Augis-Bennet and Kissinger's method were 135,175 and 187 KJ/mol for Co-18.3 at%P, 16.2 at%P, and 18.3 at%P. respectively. The enthalpy of crystallization calculated from the area of reaction peak was in the range of 1.0~3.4 KJ/mol.

DBD(Dielectric Barrier Discharges)에서 플라즈마 발생 해석

김종봉,신명수,김종호,김성영,이혜진 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-

DBD(Dielectric Barrier Dischages) plasma is often used to clean the surface of semiconductor. The cleaning performance is affected mainly by plasma density and duration time. In this study, the plasma density is predicted by coupled simulation of flow, chemistry mixing and reaction, plasma, and electric field. 13.56 MHz of RF source is used to generate plasma. The effect of dielectric thickness, gap distance, and flow velocity on plasma density is investigated. It is shown that the plasma density increases as the dielectric thickness decreases and the gap distance increases.

매크로/마이크로 레벨 볼트 결합 구조물에서의 실험적/해석적 방법을 통한 시스템 특성 비교

김봉석,이성민,이문구,이수훈,Jun Ni,송준엽,이창우,하태호 한국공작기계학회 2006 한국공작기계학회 추계학술대회논문집 Vol.2006 No.-

As the micro technology and miniaturization of a structure and component in the last couple of decades have been concretely realized, the understanding of structural and dynamic characteristics and prediction of dynamic behavior are indispensable to the miniaturized structures and micro machines. This paper shows the effect of dynamic characteristics in bolt-jointed structures by comparing natural frequencies and mode shapes between macro and micro-scale beams through experimental modal analysis and finite element analysis with a1 8 test models by materials, by size, and by joining condition; that is, SS41 and A16061-T651, micro and macro, and monolithic beam and bolt-jointed beam.