한국인의 연, 망간, 알루미늄 및 실리콘의 혈중 농도

김정만,안정모,김원술,김정일,신해림,정갑열,김준연 동아대학교 산업의학연구소 2000 산업의학연구소 논총 Vol.- No.5

Blood Lead, Manganese, Aluminium and Silicon Concentrations in Korean Adults Jung Man Kim, Jung Mo Ahn, Won Sul Kim1), Jung Il Kim2), Hai Rim Shin, Kap Yeol Jung2), Joon Youn Kim Department of Preventive Medicine, College of Medicine and Industrial Medicine Research Institute. Dong-A University Department of Health Care, Handong University Sunlin Presbyterian Hotpital1) Department of Occupational Medicine, College of Medicine, Dong-A University2) 0bjectives : This study was performed to determine the reference values of blood lead, manganese, aluminium, and silicon in healthy adults. Methods : The subjects were 132 (67 male and 65 female), and classified to three age groups (≤39,40∼49, and 50≤). Hood lead, manganese and aluminium were analyzed by atomic absorption spectrophotometer, and blood silicon was analyzed by direct current plasma optical omission spectrometer. Results : Blood lead levels(geometric mean, S.D) were (3.49, 1.70) ㎍/dL in male auld (3.04, 1.65) ㎍/dL in female, but the difference is not significant, and there was no significant difference between age groups. Mean blood manganese level was 0.99±0.41㎍/dL, and there was no significant difference between sex or age groups. Mean blood aluminium level was 0.59±0.35㎍/dL and there was no significant difference between sex or age groups. Mean blood silicon level was 54.41±27.64㎍/dL in male and 43.34±23.51㎍/dL in female, and the level in male was significantly higher than that in female (p〈0.05). There was significant difference between age groups, and the oldest showed the highest level in male (p〈0.05), but no significant difference between age groups in female. Conclusions : Authors hope that this study would provide basic data for determininig reference values and evaluating health effects.

A Study on the Mythological Figures in the Poetry of W. B. Yeats

Lee, Jung-Won 국립7개대학공동논문집간행위원회 2003 人文學論叢 Vol.3 No.-

긴 작품활동 동안 예이츠의 관심의 초점은 항상 사람들에게 맞춰져 있었다. 이는 희곡이나 산문 작품에만 해당하는 말이 아니라 그의 시에도 마찬가지로 적용된다. 그의 시에 등장하는 인물 중에는 신화적 인물들이 상당수 있는데 예이츠가 정의하는 신화는 단지 신들의 이야기만이 아닌 보다 넓은 의미의 정의, 여러 세대를 두고 전해 내려온 전설적 인물들도 포함한다. 릴리안 페더는 예이츠에게 신화의 주인공들은 한 문명의 발단단계를 나타내며 그 소산물이라고 말한 바 있다. 한 시대의 특징들이 신화를 통해 전달되며 현대에 도전하는 시금석이 된다는 것이다. 예이츠의 신화적 인물들은 신화라는 단어가 일반적으로 연상시키는 그리스, 로마 신화보다도 그의 조국 아일랜드의 신화에서 나온 인물이 더 많다는 특성을 지니고 있다. 예이츠는 물론 아일랜드 인들만을 자신의 독자로 생각하고 글을 쓴 것은 아니지만 이들 인물들을 시에서 묘사함으로써 잘 알려지지 않았던 아일랜드의 문화적 유산을 성공적으로 보편화, 세계화하는 본보기를 보여주고 있다. 예이츠는 시에서 기존 신화를 단순히 인용하는 것이 아니라 자신의 필요에 맞게 한, 두 양상을 선택해 확대하고 증보하는 자유로운 상상력의 구사로 새로운 인물로 창조하는 면모를 보여준다. 또한 그에게 신화적 인물은 사라진 고대세계의 인물로만 존재하는 것이 아니라 현대사회에 재현될 수 있는 인물상으로 그려진다. 그리하여 신화적 영웅 쿠훌린은 1916년 혁명의 현장에 되살아나며 트로이의 헬렌은 그의 평생의 연인 모드 곤의 모습에 투영되어있다. 예이츠가 한 편의 시에서는 한가지 양상을 중점적으로 묘사했기 때문에 예이츠 시의 신화적 인물들은 여러 편의 시를 종합하여 고찰할 때 그 인물의 유형적 특성이 잘 드러난다. 본고에서는 사랑의 신 엥거스, 은둔현자 퍼거스, 시인 어쉰, 전사 쿠훌린, 절세미녀 트로이 헬렌의 다섯 인물의 분석을 통해 예이츠가 이들 신화적 인물들을 통해 구현하고자 했던 인간관을 살펴본다.

紅花가 高Cholesterol 食餌에 의한 家兎의 高脂血病에 미치는 影響

鄭承鉉,朴性植,李源哲 동국대학교 경주대학 1995 東國論集 Vol.14 No.-

In order to evaluate the effects of Carthami Flos on the Hyperlipidemia induced by high cholesterol diet, rabbit were fed with 4% cholesterol diet, 4% cholesterol - Carthami Flos diet (2g/㎏/day) during 12weeks. After 12 weeks, serum lipid levels of rabbits were studied. The results were obtained as followed ; Carthami Flos Group had a decrease effect of serum total cholesterol, triglyceride, total lipid, free fatty acid and LDL-cholesterol level. Whereas Carthami Flos Group had a decrease tendency effect of serum phospholipid level and a increase tendency effect of serum HDL-cholesterol level but P-value did not show a significance.

다중 경로 페이딩 채널 모델들의 특성 분석

元寅載,朴帝賢,金正國 明知大學校 産業技術硏究所 2005 産業技術硏究所論文集 Vol.24 No.-

Rayleigh signal fading phenomena due to multipath propagation in wireless communication can be simulated using the sum-of-sinusoids channel model. Jakes' fading channel model and Clarke's fading channel model are very simple simulators based on the sum-of-sinusoids and has been widely used. However, It has some short-comings. Its time correlation properties based on the simulated waveform do not correspond to the statistical ones. In this paper, the difference between statistical and time properties of Jakes' fading channel model and Clarke's fading channel model are examined.

Reliability and validity of the short‐version instrument to measure health promotion for Korean cancer survivors

Jung‐won Lim 한국사회복지학회 2019 Asian Social Work and Policy Review Vol.13 No.1

Purpose: The current study tests the validity and reliability of the short version of the Health Promoting Lifestyle Profile II (HPLP‐II) when used to measure health promotion for Korean cancer survivors. Methods: The survey data were collected from 175 Korean cancer survivors who were diagnosed with breast or colorectal cancer in South Korea. The confirmatory factor analysis (CFA) and structural equation modeling were conducted to examine the construct and criterion validity of the Korean version of the HPLP‐II. Results: Findings demonstrated that excluding nutrition and stress management, four subscales showed good internal consistency. The three competing models of the HPLP‐II were tested to determine the factor structure of the HPLP‐II for Korean cancer survivors: (a) the original 6‐factor, (b) the modified 4‐factor, and (c) the modified 5‐factor. The five‐factor solution with 23 items was selected for the final model. The criterion‐related validity based on the relationships between health promotion and HRQOL was demonstrated. Discussion: This study makes an important contribution to understanding the health promotion measure used by Korean cancer survivors. Specifically, this study provides a rationale to investigate the validity of a measure before such measures are used in the different language and cultural groups.

호주와 뉴질랜드의 會計制度에 관한 硏究

元亭淵 漢陽大學校 産業經營硏究所 1995 産業經營硏究 Vol.7 No.-

동태안정도 해석방법의 개선에 관한 연구

정정원 慶星大學校 1995 論文集 Vol.16 No.2

There are two categories in the transient stability analysis of power systems. One is the direct method using Lyapunov function or energy function, and the other is the indirect method which uses numerical methods such as Runge-Kutta or modified Euler method. The latter is prevalent because of its wide applicability. Conventional methods treats bus voltages as constant quantities in the procedure of numerical calculations of differential equations which represent motions of state variables. In this thesis, proposed is more accurate stability analysis method which can treat the variations of voltages.

중부지역 과수원 토양중의 중금속 함량 평가

정구복,김원일,이종식,신중두,김진호,윤순강 한국환경농학회 2004 한국환경농학회지 Vol.23 No.1

우리나라 중부지역에서 1998년 3∼5월에 과수원 토양 164지점(경기 48, 강원 36, 충북 36, 충남 44지점)을 대상으로 표토(0∼20 ㎝)와 심토(20∼40 ㎝)로 나누어 채취하여 토양내 중금 속함량과 분포특성, 총함량에 대한 침축액별 가용성 함량 비율 및 토양 이화학성과의 관계 를 비교 검토한 결과는 다음과 같다. 과수원 토양중 0.1 N-HCl 침출성 평균함량은 Cd 0.080, Cu 4.23. Pb 3.42 ㎎/㎏, 1 N-HCl 침출성 As 평규함량은 0.44 ㎎/㎏, 중금속 총함량 은 Zn 78.9, Ni 16.09 및 Hg 0.052 ㎎/㎏ 이었다. 과수원 토양내 중금속 평균함량은 우리 나 라 토양환경보전법의 토양오염 우려기준(Cd 1.5, Cu 50, Pb 100, Zn 300, Ni 40, Hg 4 ㎎/ ㎏)과 비교하여 1/25∼1/76.9 수준으로 안전하였다. 토양의 중금속 총함량에 대한 침출액별 가용성 함량비율은 Cd 5.4∼9.2, Cu 27.9∼47.8, Pb 12.6∼21.8, Zn 15.8∼20.3, Ni 5.3∼6.3, Cr 0.7∼3.6% 이었고, 특히 0.05 M-EDTA 침출성 CU 및 Pb의 침출비율이 상대적으로 높 게 나타났다. 토양내 Cd, Pb 및 Ni의 총함량은 모래함량과 부의상관, 미사와 점토함량과는 정의 상관을 보였다. 토양의 중금속 총함량에 대한 침출액별 가용성 함량비율은 점토함량과 는 부의 상관을 보였으며, Zn과 Ni의 함량비율은 토양 pH값, 유기물 및 유효인산 함량과 정 의 상관을 보였다. 이상의 결과에서 볼 때 과수원 토양의 중금속 함량은 토양환경보전법의 토양오염기준보다 매우 낮아 안전하였으나 영농활동에 의한 영향으로 볼 수 있는 농도수준 이 검출된 일부 토양에서 조사되었다. 따라서 최근의 친환경농업 측면으로 볼 때 영농형태 별 중금속의 분포 및 농업자재에 의한 농경지내 중금속 부하량에 근거하여 중금속 오염유무 를 평가할 수 있는 판단기준에 대한 연구가 필요하다고 생각된다. Objectives of this study were to monitor the distribution of heavy metals, to compare extractable heavy metal with total content and to investigate the relationships between soil physico-chemical properties and heavy metals in orchard soil. sampling sites were 48 in Gyeonggi, 36 in Gangwon, 36 in Chungbuk, and 44 in Chungnam. Soils were collected form two depths, 0 to 20 and 20 to 40 cm (here after referred to as upper and lower layers) from March to May in 1998. Total contents of heavy metal in soils were analyzed by ICP-OES after acid digestion (HNO₃:HCl:H₂O₂) whereas extractable contents were measured after successive extraction of 0.1 N-HCl, 0.05 M-EDTA, and 0.005 M-DTPA. Mercury was analysed by mercury atomizer. The average contents of Cd, Cu, and Pb in the extractant with 0.1 N-HCl at upper layer were 0.080, 4.23, and 3.42 ㎎/㎏, respectively. As content in the extractant with 1 N-HCl was 0.44 ㎎/㎏, and total contents of 20, Ni, and Hg were 78.9, 16.1, and 0.052 ㎎/㎏, respectively. m e ratios of concentrations of heavy metals to threshold values (Cd 1.5, Cu 50, Pb 100, Zn 300, Ni 40, Hg 4 ㎎/㎏) in soil Environmental Conservation Act in Korea (2001) were low in the range of 1/2.5-1/76.9 in orchard soils. The ratios of extractable heavy metal to total content ranged 5.4-9.21% for Cd, 27.9-47.8% for Cu, 12.6-21.8% for Pb, 15.8-203% for Zn, 5.3 -6.3% for Nii and 0.7 -3.6% for 2n, respectively. Cu and Pb contents in 0.05 M-EDTA extractable solution were higher than those in the other extractable solution. Total contents of Cd, Ni, and Ni in soils were negatively correlated with sand content, but positively correlated with silt and clay contents. Ratios of extractable heavy metal to total content were negatively correlated with clay content, but Zn and Ni contents were positively correlated with soil pH, organic matter, and available phosphorous. Therefore, the orchard soil was safe because the heavy metal contents of orchard soil were very low as compared to its threshold value in the Soil Environmental Conservation. Act However, it need to consider the input of agricultural materials to the agricultural land for farming practices for assessment of heavy metals.

各級學校에 設置된 銀行의 運營實態와 그 改善方案에 關한 硏究 : 國民學校의 金融機關 派出收納과 貯蓄行態 The detached receipt and The Saving Forms of the elementary schools

鄭原圭 釜山敎育大學 1975 부산교육대학 논문집 Vol.11 No.2

The saving education in the elementary schools is carried out in various ways, but its result is stagnant and leaves much room for improvement. This study has dealt with the instillation of a desirable saving attitude and the encouragement of the will to save. This study has been attempted to find out the advisable suggestion by the needed saving education program. For this purpose, it is necessary to analyze and investigate the school banks, the detached receipt, its reality, saving education, and its form. This stydy me summarized as follows: (1) The real understanding of savings is weekened by the lack of understanding and the compulsory enforcement for the attainment of the target figures of the national savings union in preference to the necessary conception of the efficient saving education. A sure way to encourage the will to save is to enlighten the students on the necessity of savings and to relax the restrictions of the drawing deposits out of the school banks. (2) It is desirable to encourage the free children deposits and lead to the voluntary saving attitude and to increase the interests of deposits from the educational point of view. (3) It is necessary to found the children banks in the schools in order to save at any time they want. In case of the unfavorable conditions, it is advisable to adopt the detached receipts with the help of the neighboring banking institution. (4) It is important to provide the financial assistance for the effective operation of the children banks and to have a full-charge teacher in a school over twenty classes.

NH₃가스 미량첨가 분위기에서의 CO-H₂혼합가스에 의한 과탄화철의 합성

정성실,정우창,강흥원,박응열,정원섭,박익민 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.11

The synthesis process of iron carbide was proceeded in two stages of reduction of hematite fines by H₂ gas, and carburization of the reduced metal by CO-H₂ gas mixture at 600℃. The surface of reduced iron was pre-treated with an addition of 0.05 vol% NH₃-Ar before carburization. The synthesized iron carbides were comprehensively explored by C/S analyzer (Low C/S determinator), Mossbauer spectroscopy, X-ray diffraction patterns (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy at various reaction times of 5, 10, 15, 20, 25, 30, and 35 min. By addition of a small amount of NH3 gas, the super iron carbides contained 10 wt% carbon were made, and such addition stabilized iron carbides. It was found that addition of NH3 gas played a major role in the formation of iron carbide without decomposition (Fe₃C→ 3Fe+C) of iron carbides and precipitation of free carbon. From these results, we succeed in synthesis of super iron carbide, Fe_(5)C₂, with a stable single phase without Fe and Fe₃C phases. (Received August 2, 2004)