三槽式便所를 設置한 濟州道內 一部落民의 寄生蟲感染率 推移

蘇鎭琸,李根泰,鄭坪林,李在興,李定熙,金英漢,洪淳億 최신의학사 1968 最新醫學 Vol.11 No.8

Three compartment stool tank system was established in March, 1965 to each of the houses . of Yongheungri, Cheju-do. The trend of parasites prevalence, faithfulness of the people to paractice the system and effectiveness of the system for destruction of ascaris eggs were examined. 1. Only 22 houses among 65 utilized the system for 3 years. The remained 43, gave up to practice; 10 because of the destruction of the cemented tank and 33 due to the shortage of. food stuffs, for hogs. In this island, the people have been raised hogs with human excrets. 2. The prevalence of ascaris infection in the village and in Sinwom-ri, a control village where the human feces were used as food stuffs for hog, were as follows: Yongheung(%) Sinwom(%) March 1965 before medication 52.0 43.0 Dec. 1965 after medication 15.1 21.2 Feb. 1968 22.7 30.8 3. Ascaris eggs in the 3rd compartment, were destroyed 94-100%, whereas the eggs in semi-formed feces in hog sty survived 94%.

Pollen Viability of Common Buckwheat (Fagopyrum esculentum Moench.) in in vitro Germination and its Application to Male Gametophyte Isolation

Woo, Sun-HeeㆍKeun-Yook ChungㆍHeung-Tae, KimㆍYong-Gu, ChoㆍHong-Sig, KimㆍBeom-Heon, Songㆍ Chul-Won, Lee and Seung-Keun Jong 忠北大學校 農業科學硏究所 2004 農業科學硏究 Vol.21 No.-

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지난 2년간의 학회지 "신경정신의학" 심사 평가보고

김찬형,김세주,김도관,김성곤,박원명,송동호,박용천,이영문,오강섭,정영철,이상열,김주한,이동영,이헌정,함병주,김율리,김문두,김정진,이강욱,천근아,김재진,홍진표,홍승철 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.6

Disilver Cadmium Tetraiodide Membrane Electrode에 관한 연구

李根植,金禎姬 淑明女子大學校 1978 論文集 Vol.18 No.-

This experiment is concerned with determining the sensitivity, stability and reproducibility of Ag_2CdI_4 membrane electrode, the response of the electrode to Cd^2+ concentration, and the effect of inhibitor and pH of the solution. The ion-sensitive membrane electrode is prepared by mixing Ag_2CdI_4 with PVC power in 4 to 1 rato and pressing with IR pellet press. The observations may be summarized as follows: 1. The potential plot is linear with the slope of 27.0mV in the range of Cd^2+ conce ntration 1×10^-1M∼1×10^-5M, slightly deviated from the Nernstian value, but the stability and reproducibility of the electrode is quite acceptable. 2. The electrode is considered to be applicable in the pH range of 2∼9. 3. The electrode shows no definite sensitivity to any other cations or anions except Ag^+ and Hg^2+. 4. Using the electrode as indicator electrode, Cd^2+ solution is titrated with 0.1M NaOH standard solution by precipitation titration and EDTA complexometry.

광주시내 업종별 음식점의 주방기구와 관련된 주요 세균 및 이들의 계절별 변화

이홍열,유맹자,정해진,김근영,정희종 全南大學校 農業科學技術硏究所 1998 農業科學技術硏究 Vol.33 No.-

업종별 음식점에서 사용중인 주방기구 가운데 개숫물중에 존재하는 세균들을 분리·동정한 결과, 한색음식점에서 37균주, 일식음식점에서 23균주, 및 중식음식점에서 33균주가 분리되었고 이들 중 한식음식점에서 E. coli 등 16균주, 일식음식점에서 Listeria sp. 등 20균주, 중식음식점에서 Micrococcus sp. 등 15균주를 각각 동정하였다. 이들 세균들은 업종별 음식업소에서 주로 사용되는 색품재료에 존재하는 세균들과 밀접한 관계가 있는 것으로 밝혀졌고 E.coli와 같은 일부 세균들은 주방의 불결한 환경이나 종사자로부터 오염된 것으로 추정되었다. 업종별 음식점에서 사용중인 개숫물, 행주, 칼, 및 도마에 존재하는 세균의 분포는 일반세균수 및 대장균수가 모두 2월에서 8월까지 점점 증가하다가 11월에는 다시 감소하는 경향을 보였다. 특히 이같은 경향은 일반세균은 개숫물에서 대장균군은 칼에서 가장 뚜렷하게 나타났다. 따라서 식중독 발생 가능성이 가장 높은 여름철에는 칼, 도마 등 주방기구들은 정기적으로 열탕소독하는 철저한 위생처리가 필수적인 것으로 생각되었다. Thirty-seven, twenty-three, and thirty-three bacterial strains were isolated from dish-washing water which was selected as a kitchen supply commonly loaded the highest level of bacteria among various supplies using at Korean style, Japanese style, and Chinese style restaurants. Among these isolates, sixteen strains including Esherichia coli, twenty strains including Listeria sp., and fifteen strains including Micrococcus sp. were identified from Korean style, Japanese style, and Chinese style restaurants, respectively. This result suggested that most isolated bacteria were closely related to bacterial flora of raw food materials used in each style of restaurants and others could be contaminated from the surrounding environment and the employees. Total and coliform bacterial counts distributed in dish washing water, wiping cloths, knives, and cutting boards used at different types of restaurants were gradually increased from February to August and then decreased until November. This changing tendencies of total bacterial counts and coliform group counts were obvious in dish-washing water and in knives, respectively. Therefore, kitchen supplies such as wiping cloths, cutting boards, and knives should be treated carefully with hot water of above 45℃ at every certain period of time to kill some of these potential hazardous bacteria and to prevent outbreaking foodborne-illness by them, especially during Summer.

MIS設計의 組織構造的 側面에 관한 一考察

李根植,鄭相喆 충남대학교 경상대학부설 경영경제연구소 1984 경영논집 Vol.6 No.2

6-Sigma경영혁신기법 시행에 따른 방사선과 내부고객만족도의 변화

이근옥,박재성,강충환,김미영,김승식 한국의료QA학회 2005 한국의료질향상학회지 Vol.12 No.1

Background : The concept of 'service' in a hospital is based on the quality of medical staffs who serve as customer-satisfying media, and this is what distinguishes general hospitals from other business corporations in which customer satisfaction is achieved through commercial products. Thus, the internal employee satisfaction is essential in the improvement of the 'service' and subsequent 'competitiveness' of a hospital. The purpose of this study is to establish internal marketing strategies for a general hospital through regular surveys on employee satisfaction. Method : Surveys on employee satisfaction in radiology department were conducted regularly twice a year in a university hospital with 800 beds 2001 in 2004. The subjects of this study were 35 employees who work in radiology department. The authors developed the questionnaires and the surveys were conducted initially during the first 6 months of the year. After necessary improvements were made by applying 6 Sigma techniques, subsequent surveys were conducted during the latter 6 months of the year and the degree of employee satisfaction was compared. Results : Overall satisfaction increased with a constant rate and the authors were able to assess that the hospital is being gradually stabilized. The degree of satisfaction assessed by multiple choices showed only minor changes. However, as a result of focusing on the demands put forth by the employees through the open questions, the degree of satisfaction increased gradually year after year. Conclusions : It is important to heighten the internal employee satisfaction systematically and harmoniously through the assessment on the demands of the internal customers and feedback-based communications between the management officers and the staffs. Continuous surveys on the internal employee satisfaction will serve to be valuable materials in the establishment of internal marketing strategies for a general hospital.

通貨論的 接近方法에 의한 韓國 換率決定의 實證分析 : Kalman Filter를 이용하여 Using the Kalman Filter

정근존,이민환 한국경상학회, 한국국민경제학회 2003 경제연구 Vol.21 No.3

본 연구에서는 통화론적 모형에 근거하여 1996:Ⅰ-2001:Ⅳ의 분기별 원/달러 환율을 Kalman Filter를 이용하여 추정하였다. 추정결과 환율에 대한 통화량과 실질소득 변수의 추정계수들이 이론적 부호와 일치할 뿐 아니라 통계적 유의성이 높은 것으로 나타났다. 특히 통화량 변수ㄹ M1보다 시중의 유동성을 정확히 반영하는 M2, 더욱이 M3를 이용하는 경우에 통계적 유의성이 높을 뿐만 아니라, 추정계수의 크기가 증대하며 또한 우수한 예측력을 나타내고 있다. 아울러 외환위기를 겪은 1994년 4/4분기의 구조적 변동을 추정계수의 변화로 확인 할 수 있었다. 이러한 결과는 외환 및 자본자유화의 진전이 더욱 가속화되는 우리나라에서 환율변화에 대한 설명으로써 통화론적 접근 모형의 유용성이 증대되리라는 것을 시사한다. Based on the monetary approach, this paper estimates the exchange rate of Korea against U.S. in 1996:Ⅰ - 2000:Ⅳ using the Kalman Filter. The result shows that the estimated coefficients of money stock and real income are consistent with the theoretical signs and highly significant. Particularly, using the M2 and M3 instead of M1. the estimated coefficients are significant and increasing through t h e time with better forecasting ability. Also we found t h a t there was a structural change in exchange rate at the foreign currency crisis in the late 1997 in Korea. These results, in the face of more liberalization of foreign currency and capital movement, the monetary approach will be useful in explaining the change in exchange rate in Korea.

레진강화형 글라스아이오노머의 2 축 굽힘강도

이용근,임미경,구대회,이정식 大韓齒科保存學會 1997 Restorative Dentistry & Endodontics Vol.22 No.2

Resin-modified glass ionomers were introduced in 1988 to overcome the problems of moisture sensitivity and low early mechanical strengths of the conventional glass ionomers, and to maintain their clinical advantages. The purpose of this study was to evaluate the bi-axial fracture strength of four resin-modified glass-ionomers(Fuji II LC, Vitremer, Dyract, VstiGlass), one resin composite material(Z-100), and one conventional glass-ionomer(Fuji II). Three specimens of each material and shade combination were made according to the manufacturers' instructions. Materials were condensed into metal mold with a diameter of 10mm and a thickness of 2.0mm and pressed between two glass plates. Resin-modified glass ionomers were polymerized using a Visilux II light curing unit by irradiating for 60 seconds from both sides, and conventional glass ionomer was cured chemically. After specimens were removed from the molds, surfaces were polished sequentially on wet sandpapers up to No. 699 silicone carbide paper. The specimens were thermocycled for 2,000 cycles between 5℃ and 55℃ distilled water. After thermocycling, bi-axial fracture strengths were measured using a compressive-tensile tester(Zwick 1456 Z020, Germany) with the cross head speed of 0.5mm/minute. The results were as follows: 1. Two factors of the kind and color of materials had a main effect on bi-axial fracture strength (p<0.01), and bi-axial fracture strength was influenced significantly by the kinds of materials (p<0.01). But there was no significant interaction between two variables of the kind and color of materials (p>0.05). 2. Comparing the mechanical properties of the materials, the elastic modulus of Z100 was higher than any other material, and there was no difference in the displacement at fracture among materials. The bi-axial fracture strength of Z100 was significantly higher than any other material, and that of resin-modified glass ionomers was significantly higher than that of conventional glass ionomer (p<0.05). 3. In the same material group, the color of material had little influence on the mechanical properties.

골프장의 잔디 토양에서 살균제 Tolclofosmethyl의 분해

정근욱,우선희,김흥태,사동민,김영기,홍순달,김재정,이재구 한국환경농학회 2004 한국환경농학회지 Vol.23 No.3

Tolclofosmethyl (TCFM) is heavily and annually applied to the turf soils of most golf courses in Gyeongju to control the fungi known to cause the disease brown patch. The soil samples used for the experiment was collected three weeks after the annual application at the end of May in the year 2002. The preliminary results obtained from this study demonstrated that the repeated field annual applications of TCFM to the turf soils of a golf course located in Gyeongju city in the southern area of Korea showed the enhanced degradation of the parent compound TCFM, especially in the surface (0~15 cm) soil rather than the shallow subsurface (15~30 cm) and deep subsurface (30~45 cm) soils, compared to the corresponding surface (0~15 cm) and shallow and deep subsurface (15~30 cm and 30~45 cm) soils of the untreated plot. It appears that microorganisms in the soil may be involved in the enhanced degradation of TCFM.