회전형 및 선형 와전류 제동장치의 특성 비교 분석

이경표(Kyung-Pyo Yi),박현정(Hyun-Jeung Park),임재원(Jaewon Lim),노종석(Jong-Suk Ro),정현교(Hyun-Kyo Jung) 대한전기학회 2013 대한전기학회 학술대회 논문집 Vol.2013 No.7

대학생의 개인재무관리역량

이슬기(Sul-kee Lee),박현정(Hyun-jeong Park),김민정(Min-jeung Kim) 충북대학교 생활과학연구소 2012 생활과학연구논총 Vol.16 No.1

The purpose of this study is to measure financial competency of students in Chung-buk national university. The financial competency included financial attitude, financial knowledge, and financial skills. The major findings are as follows: First, as the financial management competency of university students, their attitude towards financial management was 75 points, knowledge in financial management was 68.5 points, and financial management skill was 59.9 points. Second, male students showed higher scores than female students in all areas. Third, students in the fields of medicine, education, and laws showed higher levels of financial management knowledge yet their financial management skill was low. Forth, students who receive allowances from parents showed high points of attitude towards financial management yet their financial management skill was low. Those who receive allowances from people that are not parents showed lower points in the attitude towards financial management or the knowledge than those who do not receive allowances. Fifth, students who spend money they earned showed higher points in every area than other students’ points. Finally students who received financial education showed similar or lowered points in financial management attitude and financial management knowledge with students who did not receive the financial education. However, the level of their financial management function was higher. Students who have saving accounts, periodicaldeposits, fixed deposits, a check card, or debit card showed higher levels of financial management knowledge and function that those who do not have the above items.

대학생의 개인재무관리역량

이슬기, 박현정, 김민정 충북대학교 생활과학연구소 2012 생활과학연구논총 Vol.16 No.1

The purpose of this study is to measure financial competency of students in Chung-buk national university. The financial competency included financial attitude, financial knowledge, and financial skills. The major findings are as follows: First, as the financial management competency of university students, their attitude towards financial management was 75 points, knowledge in financial management was 68.5 points, and financial management skill was 59.9 points. Second, male students showed higher scores than female students in all areas. Third, students in the fields of medicine, education, and laws showed higher levels of financial management knowledge yet their financial management skill was low. Forth, students who receive allowances from parents showed high points of attitude towards financial management yet their financial management skill was low. Those who receive allowances from people that are not parents showed lower points in the attitude towards financial management or the knowledge than those who do not receive allowances. Fifth, students who spend money they earned showed higher points in every area than other students’ points. Finally students who received financial education showed similar or lowered points in financial management attitude and financial management knowledge with students who did not receive the financial education. However, the level of their financial management function was higher. Students who have saving accounts, periodicaldeposits, fixed deposits, a check card, or debit card showed higher levels of financial management knowledge and function that those who do not have the above items.

Helicobacter pylori의 생육에 영향을 미치는 성분과 식품첨가물에 관한 연구

송재철,정혜진,박현정,조은경,신완철 한국식품영양학회 1999 韓國食品營養學會誌 Vol.12 No.5

본 연구에서는 일반적으로 섭취하고 있는 식품재료나 음식 중에 공통적으로 함유한 성분 또는 가공중에 많이 첨가되는 성분을 선정하여 이들이 Helicobacter pylori 생육에 어떤 영향을 미치는지를 검토하였다. 첫째, 일반식품의 주요 성분인 탄소원, 질소원, 무기질을 대상으로 Helicobacter pylori 생육에 미치는 영향을 검토하였다. 그 결과 식품성분 중 탄소원의 종류에 따라 균일 생육활성은 다르게 나타났다. 우선 단당류가 이당류나 다당류에 비교하여 생육을 촉진하였고 특히 단당류 중 포도당은 가장 균의 생육에 큰 영향을 미치는 것으로 나타났다. 그러나 만노오스는 균의 생육을 오히려 억제시키는 것으로 나타났다. 당알코올류인 솔비톨, 만니톨, 말티톨, 크리시톨 등은 균의 생육에 아무런 영향을 미치지 않은 것으로 나타났다. 질소원과 Helicobacter pylori의 생육과의 관계는 평소 식생활에서 많이 섭취된다고 생각되는 일반 음식에 많이 함유되어 있는 유기형 아미노산 성분고 무기형 질소화합물을 대상으로 균의 생육 정도를 비교하였다. 리신, 메티오닌, 시스테인, 트립토판 등은 균의 생육을 촉진하고 아르기닌, 황산암모늄, 염화암모늄 등은 균의 생육에 도움이 되지 않고 암노니아, 요소등은 균의 생육에 도움이 되지 않고 암모니아, 요소 등은 균의 생육에 조금 영향을 미침을 관찰할 수 있었다. 특히 리신과 메티오닌은 가장 균의 생육에 영향을 미치는 것으로 나타났다. 무기염류의 영향에서는 황산마그네슘, KH-2PO_4, 염화마그네슘 등은 큰 영향을 미치지 못하였고 황산철, 염화제일철, 염화제이철은 생육을 억제하는 것으로 나타났다. 식품첨가물의 Helicobacter pylori의 생육 정도를 검토한 것으로, 그 다음이 질화나트륨, 염화나트륨 순이었으며 토코페롤은 전혀 생육에 영향을 미치지 못하였다. The purpose of this study was to choose principal food components contained in diet foods and food additives used for manufacturing processed foods, and elucidate their in vivo effects on the growth pattern of Helicobacter pylori. To do this, the antibacterial effects of various sources of carbon, nitrogen and mineral as an effect agent on Helicobacter pylori were first assessed based upon bacterial growth degree. Results show that the source of carbon tested had different effects on bacterial growth of Helicobacter pylori. It was revealed that a promotional effect of monosaccharides resulted in enhanced growth of Helicobacter pylori compared with disaccharides and polysaccharides. In particular, glucose was observed to be most effective in growth of Helicobacter pylori among monosaccharides tested, whereas mannose to hinder the growth of Helicobacter pylori. Polyols such as sorbitol, mannitol, maltitol and xylitol was, however, observed to show no promotion or suppression effect on growth of Helicobacter pylori. Apart from these, the sources of amino acid and inorganic nitrogen were chosen and tested to assess the promotion or suppression effect of nitrogen sources on growth of Helicobacter pylori. It was found that amino acid such as lysine showed its promotion effect on the growth of Helicobacter pylori, while arginine, (NH_1)_2SO_4 and NH_4Cl showed no effect on its growth. Ammonia and urea were, however, observed to have a positive effect on the growth of Helicobacter pylori. Among these effect agents, lysine and methionine were revealed to show the most positive effect on growth of Helicobacter pylori. Minerals such as MgSO_4, KH_2PO_4, and MgCl_2 appeared to exert their positive growth effects, whereas CaCl_2, and CaSO_4 had a little effect. In addition FeSO_4, FeCl_2, and FeCl_3 brought suppression on the growth of Helicobacter Pylori. In studies of the growth of Helicobacter pylori by food additives, ascorbic acid showed extreme suppression on its growth. Sodium nitrate and sodium chloride were also found to be of negative effect on the growth of Helicobacter pylori in order of degree, whereas tocopherol had nothing to do with microbial growth.

생육패턴에 영향을 미치는 성분에 의한 헬리코세균의 미세적 구조 관찰

정혜진,송재철,박현정,조은경 울산대학교 1999 생활과학논문집 Vol.1 No.1

본 연구는 위암유발 요인인 Helicobacter pylori(H. pylori)와 이 균의 생육에 영향을 미치는 식품성분과의 상관관계를 규명하기 위해 실시하였다. 균의 생육에 영향을 미칠 것으로 생각되는 기본배지를 응용한 촉진 또는 억제배지에 ascorbic acid, sodium chloride, sodium nitrate를 첨가, 각 성분이 H. pylori의 생육 활성에 미치는 영향을 검토하였다. 그 결과 기본배지에 첨가한 ascorbic acid, sodium nitrate, sodium chloride는 모두 균의 생육 억제에 관련되었고 특히 ascorbic acid는 가장 좋은 억제효과를 나타내었다. 촉진 및 억제 배지상 실험에서 촉진배지에서의 균의 생육활성은 기본배지의 결과와 유사하였고 ascorbic acid가 가장 높은 억제율을 보여 주었다. 전자현미경적 관찰에서 대조군 배양균의 경우는 형태 변형이 없는 간균의 형상을 유지하였으나 촉진배지상에서 sodium chloride, sodium nitrate, ascorbic acid를 첨가하여 배양한 균은 구조가 파손, 왜곡, 붕괴 등의 모습으로 나타났으며 많은 부분이 구균의 형상으로 변한 것으로 관찰되었다. 억제배지에서도 균의 형상은 균이 파괴되어 서로 뒤엉켜 덩어리를 이루고 있는 구조로 관찰되었다. 특히 ascorbic acid에 의한 억제효과가 가장 높은 것으로 검경에서도 관찰되었다. This study was conducted to elucidate the relationship fo helicobacter pylori, being associated with gastritis, peptic ulcers and stomach cancer, and food components such as ascorbic acid, sodium chloride and sodium nitrate added to the promotion and suppression medium. Addition of ascorbic acid, sodium chloride and sodium nitrate to the basal medium respectively was indicated to inhibit the growth of helicobacter pylori. Ascorbic acid showed maximum growth inhibition of microbe. In experiment of growth patterns on the promotion medium and suppression medium, growth pattern of Helicobacter pylori was shown to be high on the prmotion medium with ascorbic acid, and this pattern had a strong resemblance to the result of the basal medium. In the examination of morphological changes by scanning electron microscopy, ascorbic acid, sodium chloride and sodium nitrate exhibited the negative growth activation of microbe by using a basal medium. Untreated control cells were identified to be curved bacilliforms, with bluntly rounded ends and showed smooth surfaces. However the treated cells on the promotion medium with sodium chloride, sodium nitrate and ascorbic acid revealed respectively the structure being destructive orient and collapse resulted from breakdown of cell wall. Cells treated with the supression medium were observed to be interwined and conglomerated each other as a result from breakdown of cells. The degree of inhibition of growth by ascorbic acid was developed a tendency to be independend with concentration.