양돈폐수로부터의 수소 생성 특성

장영복,정태영,차기철,정형근,김성헌,김동진,유익근 한국물환경학회 2004 한국물환경학회지 Vol.20 No.4

The characteristics of H₂ production from livestock wastewater were investigated through an anaerobic acid forming process using Clostridium beijerinckii and the photosynthetic process using Rhodobacter sphaeroides. The submerged separation membrane was installed in the acid forming reactor. The photosynthetic process is composed of two reactors(photosynthetic reactor 1 and photosynthetic reactor 2) which is connected continually. The removal rate of COD and the production of volatile fatty acid(VFA) in the acid forming process were approximately 50% and 1000㎎/ L, respectively. The 70% of COD in the effluent of acid forming process was removed through the photosynthetic process. The production of H₂ in the photosynthetic reactor 1 and 2 was 50 and 25mLH₂/gVFA_(COD), respectively. The values of Y in acid forming reactor, photosynthetic reactor 1 and 2 was 0.2263, 0.0601 and 0.0393, respectively. The acetic acid and butyric acid produced in acid forming process were converted to H₂ by photosynthetic bacteria.

Piezocone과 Rowe Cell을 利用한 水平壓密係數 推定

권기복,류권일,고영헌,김팔규 忠南大學校 産業技術硏究所 2002 산업기술연구논문집 Vol.17 No.1

Site characterization is one of the most important performances in projects with regard to solving geotechnical problems. Piezocone penetration test is a fast, economic, and accurate method of site characterization. Static cone penetrometer and the piezocone represents the most versatile tools currently available for soil exploration. The cone penetration and piezocone tests provide continuous sounding capability and repeatability. Rare of consolidation parameter may be assessed form the Piezocone test by measuring the dissipation or decay of pore pressure with time after a stop in penetration. And many researches have been developed to determine the horizontal coefficent of consolidation from the Piezocone test. Many of these researches using a theoretical solutions which is determined from either the cavity expantion theory or the stress path method. However, depending on assumptions and analytical techniques, the results can be varied considerably. For that reason, many researchers make their effort to improve and complement the defect of already established methods. In this dissertation, the correlation between the Coefficient of Consolidation from Piezocone dissipation test and the Coefficient of Consolidation Rowe Cell horizontal consolidation test in many cases was studied. The purpose of this study is to know the changing of the Coefficient of Consolidation by loading condition while Rowe Cell horizontal consolidation test is used

식사 대용식을 사용한 단기간의 체중 조절 : 한국인 비만 성인 여성에서 식사 대용식에 대한 연구 Meal replacements trial in Korean Obese women

이복기,이규래,박미현 대한비만학회 2002 The Korean journal of obesity Vol.11 No.2

연구배경 : 최근의 비만 인구의 증가와 체중 조절에 대한 관심이 증가하면서 식사 대용식의 사용이 많아지고 있다. 그러나 이러한 제품들이 실제적인 효과 면에서 문제가 되고 있음이 많이 보고되고 있고, 무분별한 사용으로 경제적인 측면에서 많은 손실이 초래되고 있음이 현실이다. 이에 본 논문은 비만 여성에 대한 식사 대용식에 대한 연구를 함으로써 국내에서 시판되는 식사 대용식의 효능과 안전성에 대해 알아보고자 하였다. 방법 : 대중 매체 및 인터넷 사이트를 통하여 자원한 여성들 중 체질량 지수 25kg/㎡ 이상의 25 ~ 35세의 여성 54명을 선별하여 6주간의 연구가 진행되었다. 참여한 54명을 2군으로 분류하여 식사 대용식 사용군 (A군)은 식사 대용식을 아침과 저녁 식사에 사용하였고 대조군 (B군)의 경우는 식사와 운동에 대한 교육만을 시행하였다. 모든 연구 대상자에 대해서 초기 방문과 3주 째, 그리고 6주 째에 신체 계측 치들과 체 성분, 그리고 대사적인 변수들을 측정하고 6주간의 식사일기를 분석하였다. 결과 : 54명의 연구 대상자 중 42명이 6주간의 연구 기간을 마쳤고, 그 중 식사 일기의 분석이 가능한 35명을 최종 대상자로 하였다. 6주의 연구 동안 A군은 1042.61±179.73kcal/day를 섭취하였고 B군은 1313.49±308.07 kcal/day를 섭취하여 두 군간의 통계적으로 의미있는 차이가 있었다. 신체 계측치와 체 성분에 미치는 영향은 A군에서 체중 (-3.84±1.97 kg), 체지방률 (-1.42±2.20%), 허리 둘레, 둔부 둘레에서 의미 있는 감소를 보였고, B군에서는 체중 (-3.39±2.25 kg), 허리 둘레, 둔부 둘레에서 의미 있는 감소를 보였다. A군에서는 수축기, 이완기 혈압, LDL 콜레스테롤에서 의미있는 감소를 보였고, B군에서는 수축기 혈압, 총 콜레스테롤 , LDL 콜레스테롤에서 의미 있는 감소를 보였다. 양군간의 체중과 체지방률의 변화량의 비교에서는 유의한 차이를 보이지 못했다. 결론 : 이 결과는 한국의 성인 여성에서 6주 동안 하루 2번의 식사 대용식을 사용할 때, 섭취량을 줄이고 체중과 체지방률을 줄이는 데 효과적인 방법임을 시사한다. 그렇지만 대조군과의 비교를 위해서는 좀 더 장기간의 연구가 필요하다. Background : Among the obese and those interested in weight reduction, the use of meal replacements recently has gained popularity. The efficacy and safety of meal replacements, however, has been questioned. In addition, the imprudent use of meal replacements lead to significant economic costs. Therefore, this study will investigate the efficacy and safety of meal replacements by examining obese women who take meal replacements. Methods: This experiment was conducted with subjects who volunteered through the internet and the mass media. The duration of the experiment was six weeks. The subjects consisted of 54 obese women (BMI>25) whose ages ranged from 25 to 35.54 subjects were divided into two groups : Group A, the experimental group, took meal replacements for breakfast and dinner. Group B, the control group, received instruction concerning exercises and diets. anthropometric measurement, body composition and metabolic variations were evaluated the first day, the third week and the sixth week; in addition, the subjects' diet diaries were analyzed. Results : 42 out of 54 finished the six weeks experiments. 35 out of the 42 completed diet diaries. The results are based on the 35 subjects' diet diaries. Group A took 1042.61±179.73 kcal/day, and group B took 1313.49±308.07 kcal/day for six weeks. This is a statistically significant difference between two groups. Group A showed a significant reduction in weight (-3.84±1.97 kg), the percentage of body fat (-1.42±2.20%), and in waist and hip circumference. Group B also showed a significant reduction in weight (-3.39±2.25 kg) and in waist and the hip circumference. In group A, there was a significant reduction in the LDL cholesterol and in systolic and diastolic blood pressure. In group B, there was a significant reduction in total cholesterol, LDL cholesterol and in systolic blood pressure. There was no significant difference in changes of weight and body fat between the two groups. Conclusion : From these results, Korean women who took meal replacements twice a day for six weeks reduced their oral intake, weight and body fat. However, long-term studies are needed to clarify the comparison between two groups.

歷節風의 病因病機와 鍼灸治療에 關한 文獻的 考察

劉複鍾,金基鉉 대전대학교 한의학연구소 2000 한의학연구소 논문집 Vol.9 No.1

The Literatural Study on the classification of cause and the effect of Acupuncture and Moxibustion treatment for Youk Jeol Poung was studied from the viewpoint of therapeutic acupuncture and moxibustion effect. And the results were as follows: 1.Youk Jeol Poung is similar to Tong Bi, Ju Bi. Haeng Bi, Tong Poung. 2.The symptoms of Youk Jeol Poung are pain and weakness, difficulty of flexion, swelling and pain, severe pain etc., at night pain is more severe. 3.The cause, mechanism of Youk Jeol Poung is as follow, due to penetration of the wind, cold, moisture, uder situation of whole body is pain. 4.The main treatment is invigorate vital energy and blood, expel wind-evil, promote diuresis, eliminating phlegm, promote blood circulation, cold, heat -clearing. 5.The basal meridian of acupuncture and moxibustion treatment were the channels of Su Jok Sam Yang.

카올린으로부터 질화알루미늄 분말 합성

이윤복,서기원,류봉기,김광호,박희찬,장윤식 釜山大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.50 No.-

카올린으로 부터 수화염기성황산알루미늄을 제조하고, 이것을 탄소열환원질화하여 질화알미늄 분말을 합성하였다. 수화염기성황산알루미늄은 카올린으로 부터 제조된 수화황산알루미나 0.5M 및 요소 5M인 용액으로 부터 얻은 것이 가장 미세하였다. 탄소열환원질화법으로 질화알미늄을 합성할 때 활성화탄과 염기성황산알루미늄의 질량비가 2인 조성이 가장 적합하였으며, 이 때 얻어진 질화알미늄은 0.3-1㎛의 submicron급 분말이었다. Aluminum nitride powder was synthesized by carbothermal reduction-nirtridation using kaolin- derived hydrated basic aluminum sulfate. The hydrated basic aluminum sulfate powder produced from the solution of 0.5M hydrated aluminum sulfate and 5M urea showed very fine particles. The aluminum nitride showed the submicron powder of 0.3-1㎛ in the optimum condition with 2.0-weight ratio of activated charcol to hydrated basic aluminum sulfate.

Fe_3Al-(0, 2, 4, 6) % Cr 합금위에 형성되는 산화막 특성 분석

金基永,李東複 대한금속재료학회 2001 대한금속·재료학회지 Vol.39 No.12

Thermomechanically treated Fe_3A1-(0, 2, 4, 6 at%)Cr alloys were oxidized at 1000℃ in air, and the oxide scales were characterized using XRD, SEM, EPMA and TEM. The oxide scales formed were thin, but non-adherent. The oxide scales were primarily composed of submicron-sized α-Al_2O_3 oxide grains, which contained small amounts of dissolved ions of Fe and Cr. Beneath the oxide scale, numerous voids particularly along the grain boundaries of the matrix alloy were observed, indicating that the outward diffusion of Al occurred to form the Al_2O_3 oxide layer.

運動選手와 非運動選手의 Personality 特性에 關한 調査硏究 : 男子大學生을 中心으로

禹福元,田重基 慶北大學校 師範大學 體育學硏究會 1989 體育學會誌 Vol.17 No.-

For this study which is intended to have a good grasp of details about the personality of the athletes, the writer made a survey of personality traits on 320college School athletes and non athletes in Dae-Gu from Match 20, 1989 to June 30, 1989 by means of professor Chung Bum Mo's personality test papers. As the result of that inquiry and through the analysis of the responses, the writer make a conclusion as follows : 1. While athletes have Superior qualities in the Characteristics of general activity, impulsiveness, and dominance, they Show relatively lower tendencies in emotional stability, Masculinty, and objectivity approaches to thing ingeneral. In addition to promoting their operational tactics and techniques in sports activities, the leaders in Charge of these athletes must play heed to this consideration so that they will actively participate in normal academic school life, thus increasing as they come. This will in the first place enable them to be clesirable members of a society as well as successful Sportman 2. Team players are rated higher than individual athletes in general activity, impulisiveness, sociability but lower in their emotional Stability, musculity, objectivity.

장수과학기술의 국내외 동향과 국가적 추진방향

한복기,박상철 한국노화학회 1998 한국노화학회지 Vol.8 No.3

Hansen의 補整的 財政思想에 관한 硏究

장기주,이원복 韓社大學 産業福祉硏究所 1975 産業福祉 Vol.1 No.-

Fiscal policy has been processed in various types during capitalistic economy is generated and developed. The Fiscal policy of absolute monarchy has devoted a primary accumulation of capital. but when industrial capitalism was accomplished, national economy was self-adjusting developed without persanal interference. In that times, classical economic theory premised full employment and credited say's law. Therefore, whatever expenditures is non productive, especially, classical economists insisted on that public debt and tax hindered the accumulation of capital-laissez faire. but when it was arrived at the stage of monopolistic capitalism, price mechanism could not be solved the problem of business cycle, thus, capitalistic vision of J.M.Keynes expressed secular stagnation, so to speak , moreover the richer the community, the wider will ten to be the gap between its actual and its potential production and therefore the more obvious and outrageous the detects of the economic system. Total employment depends on total demand, and unemployment results from a deficiency of total demand. as employment increases, income increases. A fundamental principle is that as the real income of a community increases, consumption will also increases but by less than income. Therefore, in order to have sufficient demand to sustain an increase in employment, there must be an increase in real investment equal to the gap between in income and the consumption demand out of that income. Hansen accepted keynes's thought. moreover, He asserted that governmental positive fiscal policy increase national income and achieve economic stability, especially, He proposed a systematically compensatory fiscal policy and lay stress upon a balancing factor-compensatory function.

안동호 상류 운곡천의 이화학적 수질특성과 식물플랑크톤 군집 특성

이중복,이희무,이건주,박정원,박재충,김동걸,권기석 7개 국립대학교 환경연구 논문집 공동발행 위원회 2002 환경연구논문집 Vol.2 No.1

This investigation is about the characteristics of phytoplankton community and physciochemical water quality of specific 6-point the Woon-kog stream system in upsteam of the Andong Lake. DO value was showed over 8.1㎎/L at each site and COD_Mn, BOD, T-N, T-P tend to increase as they stream down and that the existence and dominance of phytoplankton was low and it was difficult to conclude the definite correlation of water quality and phytoplankton community. Finally, it seemed to be desirable that alternatives for pollutional reduction should be made and performed on the basis of the continuous monitoring of the inflow to preserve the Andong Lake.