HPLC를 사용한 쌀 중 잔류농약 동시분석법

최재천,이영자,김소희,최수영,최희주,정성욱,박흥재,김우성 한국환경과학회 2005 한국환경과학회지 Vol.14 No.4

A simple and sensitive analytical method based on RP-HPLC with UV detector(225 nm) and mobile phases using 0.1% phosphoric acid and acetonitrile was developed for simultaneous determination of quinclorac, bentazone, 2,4-D, bensulfuron-methyl, dymuron, capropamide, pencycuron, ethofenprox. This method was resulted in recovery of 78~ 96% with RSD 3.3~7.5%. LODs 0.12~0.84 and LOQs 0.34~1.20 ㎎/L. Calibration curves were linear with r of 0.9995~ 0.9999.

複合 韓藥劑 淸籬滋坎湯의 抗癌效果 및 作用機轉 糾明

Cho, Kyung-Sam,Kim, Si-Young,Park, Jai-Kyung,Choi, Seung-Hoon,Chung, Se-Young,Yoon, Hwi-Joong 경희대학교 동서의학연구소 1999 INTERNATIONAL SYMPOSIUM ON EAST-WEST MEDICINE Vol.1999 No.1

Kyung Sam Cho¹Si Young Kim¹, Jai Kyung Park²,Seung Hoon Choi³,Se Young Chung⁴, Hwi Joong Yoon¹¹College of Medicine, ²East-West Medical Research Institute, ³College of Oriental Medicine, ⁴College of Pharmacology, Kyung Hee University,Seoul, Korea. The Anti-cancer Effect of Oriental Medicine Chung-Ri-Ja-Gam-Tang in the Mouse with Metastatic Lung Cancer. Proceedings of International Symposium on East-West Medicine, Seoul. 231-243, 1999.-The oriental medicine Chung-Ri-Ja-Gam-Tang is an herbal medicine which has been used for pulmonary diseases and known as having immune stimulatory effects. It has been known effective in lung cancer. So we studied the effects and the mechanisms of this herbal medicine it the mouse with metastatic lung cancer. The metastatic lung cancer of the mouse was produced with melnoma cell line(B16BL/6).5×10□/mouse tumor cells were injected intravenously to the CDF1 mouse via tail vein. The mice were divided 4 groups. The first group was treated with 50mg/kg extract of Chung-Ri-Ja-Gam-Tang per oral for 10 days after cancer cell injection, second group treated with saline after cancer cell injection, the third group with medicine without cancer cell, and the last group with saline only. After 10 days treatments some of the mice were scarificed and the lung and spleen was removed. The survival duration, weight change, the number of metastatic cancer nodule of the lung, the NK cell activity, the capacity of cytokines(INF-γ,INF-α,IL-2) production and the proliferation activities of mouse lymphocytes were measured. The surival times of the group 1 mice were longer and the weight loss was less than the group 2 significantly. The number of the metastatic nodule of the lung were decresed in the group 1 than the group 2. The production of INF-γ,was increase in group 2 than group 3 and 4, IL-2 production was increased in group 1 than group 2,3,4 significantly. There was no difference in TNF- α production and proliferation activity of lymphocyte in each group. The NK cell activity was significantly increased in group 1 than group 2,3,4. We conclude that the Chung-Ri-Ja-Gam-Tang has the effect of increasing the NK cell activity of the CDF1 mouse with metastatic lung cancer(B16BL/6). And it is suggested that the increased production of the IL-2 is the mechanisms of enhanced NK cell activity.

제주도 북방 탑동해안해역의 동계 수질 특성

최영찬,김재하 제주대학교 해양연구소 1988 해양자원연구소연구보고 Vol.12 No.-

경주보문관광단지 조경대상물의 이용후 평가에 관한 연구

최재영 경주대학교 1996 論文集 Vol.8 No.-

As Kyongju is one of world-famous tourist cities that have cultural remains appoted by UNESCO, its redevelopment is inevitable in accordance with the tourists' rapid demand. First of all, which a view to offering the fundamental data for that project, it is urgent to evaluate landscape objects tourist's having used them. After evaluating landscape architectural objects of Bomoon Tourism site, this study shows the improvementplan about the evaluation result as below. First, most space must be prepared more comfortably than before in order to strengthen some merits as tourism site. Second, a tall tree or a symbol of Bomoon site must be established to fortify the character of land mark in the node of line of flow. Third, street trees must be uniform to give the symbolism of Bomoon site as beautiful native sorts of trees. Fourth, the establishment of landscape architectural objects must be considered if those objects can function fully as well as harmonize with the desirable image of Bomoon site. Fifth, a promenades must be constructed so as to be safe for even the handicapped. Sixth, the ever security of water resource for Bomoon lake must be master planned to create the lake side alive. The result of this study is to contribute to the fundamental data which can help effective redevelopment as well as practical management of Bomoon tourism site.

이온교환을 이용한 인공폐수중 질산이온 제거

최영상,조성용,김승재 전남대학교 촉매연구소 2000 觸媒硏究 論文集 Vol.21 No.-

Removal of nitrates in artificial groundwater was studied experimentally in batch and continuous column reactors. The ion exchange resins used in these experiments were Macro-type Amberlite IRA-900, Gel-type Dowex1X8-50 and SA10-AP with Cl-form functional group. Equilibrium data obtained from batch experiment were fitted by Freundlich, Langmuir and Sips equations. Sips equation was showed better fit with on data than Freundlich and Langmuir equations. Effects of pH and resin size on the nitrate removal were studied. As the pH value increased, nitrate removal efficiency of each resin was increased. It was observed that the removal rate of nitrate was highly enhanced as the size of resin decreased. In addition, effective diffusion coefficients of nitrate were calculated for each resin particle in batch system. For the water containing both sulfate and nitrate, the removal efficiencies of nitrate were determined by the sulfate/nitrate ratio as equivalence basis. Effects of various operation condition, such as feed concentration, pore type and flow rate were also discussed.

학교의 교목(校木)·교화(校花)에 대한 실태조사 연구 : 포항지역 초·중·고등학교를 대상으로 The case of Elementary·Middle·High Schools in Phohang

최재영 경주대학교 2004 論文集 Vol.17 No.-

This paper aims to survey and analyse the cases of 117 ElementaryㆍMiddleㆍHigh Schools of a School Trees and Flowers situation in Phohang. The result of the study are as follows; 1. Species of a School Trees are 11 and Flowers are 16 of total Schools in Phohang. 2. Juniperus chines were designated more freqently than others were, concerned with the quantity, and Pinus dens flora, Ginkgo biloba, Cedrus deodara, Zelkoua serrata, Pinus thunbergii, Platanus occidentalis, Chionanthus retusa, Euonymus japonica, Abies holophylla, Taxes cuspidata are followed in order. 3. Rosa hybrid were designated more freqently than others were, concerned with the quantity, and Forsythia koreana, Lilium longiflorum, Prunus mume, Lagerstroemi indica, Camellia spp., Rhododendron schlippenbachii, Rhododendron lateritium, Chrysanthemum morifolium, Syringa vulgaris, Punica granatwn, Lilium longiflorum, Chrysanthemum zawadskii, Narcissus tazetta, Pyrus pyrifolia, Chionanthus retusa are followed in order. 4. Native Species are 17 with 63.0%, Alien Species are 10 with 37.0%. Native Species are planted more than Alien Species are.

전두부 거상술과 동시에 시행한 미용성형수술 치험례

최희윤,류재만,김영수 大韓成形外科學會 1987 Archives of Plastic Surgery Vol.14 No.1

The forehead lift with other cosmetic procedures was done in the case of the six patients for 18 months; four were female and two were male patients. We observed an excellent results in the four patients and good results in the two patients after following-up for 24 months. And we found the following of our procedures. 1. possible OPD based operation under local anesthesia-save money and time 2. can perform with blepharoplasty. 3. can perform with rhinoplasty without other incision. 4. reduce the lid redundancy. 5. natural elevation of eyebrow. 6. raise drooping nose.

경주지역의 옛지명 유래(由來)에 나타나는 자연경관대상물 유형(類型)에 관한 연구

최재영 경주대학교 1998 論文集 Vol.10 No.-

Our ancestors lived in this land, keeping faith with nature. And our culture is greatly related to the natural environment of our country. But today, old geographical names which have their own history are disappearing in this land because of urbanization and industrialization. Accordingly, it is very meaningful to study the ways of living, the geographical features, the use of trees, and the types of natural landscape object revealed in the origins of the old geographical names, and to exploit the result of this study in the field of landscape architecture for the modern life. And the result of this study is as follows : 1. 26 natural landscape objects and 800 old geographical names are discovered at 55 areas or villages of Kyongju area. And 557 old geographical names derived from the natural landscape objects in the areas concerned. 2. Old geographical names are discovered more in the suburbs of Kyongju City than in the heart of this city. Especially, Oedong-eup area in the outskirts of Kyongju City has many old geographical names originating from its natural landscape objects. 3. Old geographical names derived from the location, the geographical features, the trees, the plants, the buildings, the rivers, the valleys, the ponds, the temples and the rocks in the areas concerned, in the order of frequency. 4. Of the 557 old geographical names, 103 ones(18%) derived from the trees, the woods, and the plants in the areas concerned. 5. Some old geographical names derived from plants such as Pinus densiflora S. et Z., Prunus armeniaca var. ansu Max., zizyphus jujuba var. inermis Rehder, Castanea crenata S. et Z, Lespedeza bicolor Turcz, Phyllostachys bambusoides S. et Z, Diospyros kaki Thunb, Celtis sinensis Pers, Paulownia coreana, Actinidia arguta Planch, Sophra japonica L, Quercus acutissima Carruthers, Rhus verniciflua Stokes Marsh, Pyrus pyrifolia Nakai, Ailanthus altissima Swingle, Cydonia sinensis Thouin, Broussonetia Kazinoki Siebold, Prunus armeniaca var ansu Max

중추에서 Prostaglandin계가 Renin-angiotensin System에 미치는 영향

최영태,김종승,문성호,오형균,김재훈,전제열,염철호,윤평진 朝鮮大學校 附設 醫學硏究所 1997 The Medical Journal of Chosun University Vol.22 No.1

Role of prostaglandins on the renin-angiotensin system in the central nervous system was examined in normotensive and 2-kidney, 1 clip (2K1C) hypertensive rats. The experiment was done under thiopental (50 ㎎/㎏, IP) anesthesia. Captopril and indomethacin were injected into the right lateral cerebral ventricle. Arterial blood pressure and heart rate were recorded from the femoral artery. Intracerebroventricular (ICV) captopril (1 ㎎) caused a decrease in mean arterial pressure in both normotensive and 2K1C hypertensive rats. The depressor response to captopril was more sensitive in hyper-tensive rats than in normotensive rats. Indomethacin treatment (ICV, 200 ㎎) altered the depressor response to captopril neither in normotensive nor in hypertensive rats. These results suggest that the cardiovascular effect of renin-angiotensin system in the central nervous system may not be mediated via prostaglandin systems in normotensive and 2KlC hypertensive rats.

하청 근로자들의 건강수준 평가

최홍열,고상백,장세진,차봉석,임형준,이상윤,김재용,강동묵,조수헌 大韓産業醫學會 2001 대한직업환경의학회지 Vol.13 No.1

목 적 : 하청노동을 이용한 노동 유연화 전략은 근로자들의 고용을 불안정시키고, 근로자들의 삶에 부정적 영향을 미치고 있다. 따라서 이 연구는 하청업체 근로자들의 고용현황을 조사하고, 기존의 업체중심의 건강평가의 문제점을 지적하고자 하였다. 또한 하청업체 근로자들의 건강평가의 현재적 의미와 사회적 배제의 특성을 알아보고자 하였다. 방 법 : 모기업과 하청업체 근로자들의 건강수준을 비교하기 위하여, 정기건강진단(일반, 특수)과 채용건강진단 자료를 이용하고자 하였다. 건강진단에서 누락된 비정규직을 포괄하기 위하여 SF-36을 이용하여 건강설문조사를 시행하였다.결 과 : 조선업 하청업체 근로자들의 고용기간은 짧고, 빈번한 노동이동 현상을 보였다. 3년간 건강진단 수검 현황을 통해 살펴볼 때, 1998년 수검자중 2000년까지 연속해서 검진 받은 수검자는 40.3%였다. 건강진단 결과 유소견자 규모를 통해 모기업과 하청업체간의 건강수준을 비교해 보았다. 모기업은 일반질병 요관찰자와 질병자를 포함한 유소견자가 1,011명으로 약 10 %의 유소견율을 보이고 있고, 질병자의 경우 596명으로 유병률이 5 %를 상회하고 있다. 반면 하청업체의 경우 1,967명의 수검자중 유소견자가 115명으로 6 %의 유소견율을 보이고있고, 질병자는 82명으로 4 %의 유병률을 보이고있다 채용건강진단을 받은 수검자는 6,260명 이었으며, 이 중 유소견자 수는 2,373명으로 전체 수검자의 37.9 %를 차지하였다. 건강설문지의 경우는 전체 건강수준의 총합은 하청보다 원청 근로자가 높았고 통계적으로 유의하였다. 결 론' 정기건강검진 결과는 하청근로자들이 고용형태에 따라 검진을 받지 못한 경우가 많아, 건강 근로자 효과로 표현될 가능성이 있다. 따라서 채용건강진단 결과는 다른 측면에서 하청업체 근로자들의 건강수준의 현실적 반영이라고 할 수 있다. 향후 하청업체 근로자들의 건강문제를 감시하고 개선하려면 기존의 업체 중심의 접근으로는 하청 근로자의 건강문제를 제대로 다룰 수 없고, 업종과 지역을 동시에 고려하여 접근할 필요가 있다. 또한 단기 고용 근로자 및 비정규직 근로자를 사회보장의 확충과 모기업의 연대책임 강화 및 기업복지 차원에서 포괄하는 방안이 모색되어야 하겠다. Objectives : The strategy for the labor flexibility through subcontracted labor have brought a negative effect on the lives of the workers, such as the increase of the unstable employment. This study was conducted to analyze the relationship between the employment of subcontracted firms and the health status of them, and to find out some problems which have been caused in the process of health evaluation and the characteristics of social exclusion. Methods : We reviewed the periodical health examination and preemployment health examination in order to compare health status of the subcontracted workers with those of the parent firm workers. The SF-36 questionnaire was administered to assess the self-perceived health status. Results : The result shows that compared to the working duration of the parent firm workers, those of the subcontracted workers were shorter, and the job transfer rate was higher. In the periodical health examination, the prevalence of occupational and general disease was higher in the parent firm(10%) than in the subcontracted firms(6%). Preemployment health examination plays an important role in worker's health manage- ment. Among 6,260 workers who received preemployment health examination, the prevalence of disease was 37.9%. Mean scores of health status measured by SF-36 were lower in the subcontracted firm than in the parent firm. Conclusions : Due to social exclusion of the subcontracted workers from the periodical health examination, there is a possibility that the periodical health examination have the healthy worker effect. These results suggests that the preemployment health examination could be a more appropriate indicator which is able to assess the health status of the subcontracted workers than the periodical health examination.