• Journal of agricultural medicine and community health
• /
• v.28 no.2
• /
• pp.123-133
• /
• 2003

Objectives: To examine the association between serum gamma-glutamyltransferase(GGT) activity level and blood pressure, serum lipids in the male residents of rural area, we analyzed cross-sectionally the data of 379 male health examinees aged 40 years and older from rural areas in Gyeongsangnam-do prefecture in Korea. Methods: Blood pressure and concentration of serum lipids were compared between high and low level of serum GGT activity by t-test or Wilcoxon rank sum test. Possible confounding effects of age, body mass index and coffee drinking were adjusted by analysis of covariance. Results: Adjusted values of systolic and diastolic blood pressure were higher in the group of high level of serum GGT activity in non-drinkers(P=0.055 and P=0.074 respectively) and drinkers(P=0.284 and P=0.398) of alcohol. Adjusted serum total cholesterol level was also higher in the group of high level of serum GGT activity in non-drinkers(P=0.052) but not in drinkers(P=0.981) of alcohol. In serum triglyceride, adjusted level was significantly higher in the group of high level of serum GGT activity in both non-drinkers(P=0.035) and drinkers(P=0.002) of alcohol. Conclusions: These results suggest the association of serum GGT activity and serum triglyceride, total cholesterol, or blood pressure in non-drinkres of alcohol.

• Journal of Korean Home Economics Education Association
• /
• v.28 no.2
• /
• pp.41-50
• /
• 2016

Fast foods are very popular to adolescent and the sales are increasing due to the convenience, low price, and a broad scale advertisement through mass media. Fast foods are often named as junk foods because of high calorie and fat, low vitamins and minerals contents. This study investigated the intake frequency of hamburger, pizza and fried chicken, the 3 representative fast foods, in 306 male and female high school students living in Daejeon. Data were collected by food frequency questionnaire, and analyzed by SPSS(ver. 18.0). Intake frequency of hamburger, pizza and fried chicken were 33, 29, 17 times per year, respectively. Intake frequency of these 3 fast foods were not sig. different by BMI obesity, breakfast and supper meal frequency, and first time of fast foods intake. But intake frequency of fast foods were different by the allowance, intake frequence of pizza and fried chicken are higher in students with higher allowance. Restrain score of fast foods intake were higher in underweight and obese than normal weight students. There were no sig. difference of intake restrain score by preferable future body figure. As conclusion, the most effective way of reducing the fast food intake frequency in adolescent were cutting down the allowance. Besides that education based on analysis about what are the specific nutritional defects in each fast food may help to change the behavior of fast foods intake.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.39 no.2
• /
• pp.172-178
• /
• 2010

This study was conducted to investigate total polyphenol contents and antioxidative effects of the enzymatic hydrolysates digested by several kinds of carbohydrases from the powder of ripened pumpkin (Cucurbita moschata), sweet pumpkin (C. maxima) and green pumpkin (C. moschata). The total polyphenol contents of all enzymatic hydrolysates from green pumpkin powder were higher than those of ripened and sweet pumpkins. DPPH radical scavenging activities of the enzymatic hydrolysates digested by AMG and Termamyl from green pumpkin were also very strong compared to ripened and sweet pumpkins. However, the most enzymatic hydrolysates of ripened and sweet pumpkin powders, except Viscozyme digestion, were higher superoxide anion scavenging activities than green pumpkin powder. Hydrogen peroxide scavenging activities in the enzymatic digests (not Ultroflo) of green pumpkin were potent compared to other pumpkin powders whereas hydroxyl radical scavenging activities were low at less than 14% in hydrolysates of all pumpkin species. Nitric oxide scavenging activities were very effective in Viscozyme digests of sweet and green pumpkin, and other enzymatic hydrolysates also showed higher activity than $\alpha$-tocopherol control (not BHT).

• Korean Journal of Adult Nursing
• /
• v.12 no.2
• /
• pp.196-208
• /
• 2000

The purpose of the study was to explore the effect of 2 hour infusion of vancomycin(1g) in 200ml of isotonic saline every 12 hour on the frequency of "red man syndrome", phlebitis and length of peripheral catheter placement of infected patients, in order to provide safe infusion method for reducing vancomycinin-duced RMS and phlebitis. The subjects of the study consisted of 16 hospitalized patients; 3 oncology and gastro-intestinal patients, 1 neurological patient, 6 thoracic surgical patients and 6 orthopedic patients, who had received vancomycin from July to October in 1999 at S-hospital. The dependent variables were the incidence of RMS, phlebitis and the length of peripheral catheter placement. The incidence of RMS was checked by an inspector at the first night whenever the infusion method of vancomycin was changed. RMS was observed every 15 minutes during an hour for symptoms of RMS such as itching, erythema, chest pain and systolic blood pressure. Incidence of phlebitis was assessed by inspector twice a day from the insertion of peripheral catheter to the removal of the catheter. The data were analyzed by percentage, mean, $X^2$-test, t-test, repeated ANOVA, and logistic regression analysis using the SPSSWIN program. The results are summarized as follows; 1. No significant difference was identified in frequency of RMS between the experimental group and control group. 2. There was no significant difference in the change of systolic blood pressure as the time goes on between the experimental group and control group. 3. The incidence of phlebitis was significantly lower in the experimental group than in the control group. 4. The length of peripheral catheter placement was significantly longer in the experimental group than in the control group. 5. Other drugs administrated with vancomycin didn't influence the occurrence of phlebitis. However, the infusion method of vancomycin influenced the occurrence of phlebitis. The results suggest that 2 hour infusion of vancomycin(1g) in 200ml of isotonic saline every 12 hours may decrease the incidence of phlebitis and increase the length of peripheral catheter placement compared to 1 hour infusion of vancomycin(1g) in 100ml of isotonic saline every 12 hours. However, it does not reduce the incidence of RMS.

• Journal of Bio-Environment Control
• /
• v.18 no.1
• /
• pp.23-28
• /
• 2009

This study was conducted to evaluate the effect of optimized environment conditions with growth stage in photoautotrophic micropropagation on the growth of potato (Solanum tuberosum L. cv. Dejima) plantlets and energy efficiency. Optimum environment conditions at each stage were decided in our previous study. For the evaluation of optimized environment control, potato plantlets were cultured under four different conditions: photoautotrophic optimum conditions of photosynthetic photon flux density (PPFD) and $CO_2$ levels with growth stage (POG), photoautotrophic constant condition with average PPFD and $CO_2$ levels (PCA), photoauototrophic constant condition with maximum PPFD and $CO_2$ levels (PCM), and photomixotrophic conventional condition with 3% sucrose (PMC) as control. As a result, environment control with growth stage (POG) significantly promoted all the growth characteristics such as the number of nodes and unfolded leaves, shoot height, shoot diameter, and fresh and dry weights of potato grown in vitro. In addition, based on dry weight consumed electricity and $CO_2$ were the lowest in POG suggesting the highest energy efficiency among the treatments. After transferring potato plantlets to greenhouse, the plantlets under POG showed vigorous growth, which was pretty similar with those under PMC. The accumulations of dry matter in POG were 4.7 times in vitro and 3.8 times in greenhouse as much as those in the conventional control (PCM). Thus, we concluded that in vitro environment control with growth stage induced vigorous growth of potato plantlets both in vitro and in greenhouse with less energy consumption.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.33 no.3
• /
• pp.1215-1224
• /
• 2013

Great efforts have been made worldwide to reduce the Green House Gas (GHG) emission following the "Kyoto Protocol" declared during the United Nations Framework Convention on Climate Change in 1997. Many industries have restructured to meet the standard set by the Protocol. However, no clear guidance has been established for the purpose of reducing the GHG emission in construction industry. In addition, no significant effort has been made to conserve the energy during construction activities. For more effective energy saving in construction industry, it is essential to collect data about energy consumption, quantity of environmental emissions and costs. However, most studies on sustainable construction have been concentrated on the use of equipment, maintenance and repair works during construction due to the difficulties of collecting such data. This study suggests a method to select the most environmentally friendly equipment combination for earthwork with comparing environmental loads and costs using the database of Life Cycle Inventory in the Ministry of Knowledge Economy and Ministry of Environment of Korea.

• Journal of Korean Society for Geospatial Information Science
• /
• v.5 no.2 s.10
• /
• pp.131-144
• /
• 1997

Traffic jam densified day by day is phenomenon to occur lack of the road capacity in comparison with traffic density, but lack of the road cannot be concluded by main cause of traffic ism. Because the central function of a city would be concentrated upon the downtown and traffic demand would not be evenly distributed by the classification of an hour. Therefore, this study based on the fact that each driver will select the route generating traffic delay very low when path choice from origin to destination in travel plan estimating the quality of passage could be maintained the speed he want will approach to a characteristic grasp of a road, traffic, driver changing every moment by traffic-demand of road increased as a geometrical series with analysis a classification of a street, a intersection along the path on traffic density and highway capacity analysis the path using GIS techniques about complex street network, also will get the path of actual optimum for traffic delay trend creating under various condition the classification per a hour, a day of week and an incident through network such as analysis for traffic generation zone adjacent about street, intersection, afterward will expect the result increasing efficiency of the road-use through a good distribution of traffic by optimum-path choice, accordingly will prepare the scientific, objective, appropriate basis to decide the reasonable time of a road-widen and expansion through section analysis along a rate of traffic volume vs. road capacity.

• The Research Journal of the Costume Culture
• /
• v.12 no.5
• /
• pp.859-879
• /
• 2004

As a result of research, the characteristics of the general costumes from the king Young-Cho period to the king Jung-Cho period in Genre Paintings of Mung-Hyun Oho, Yong Yun, In-Sang Lee, Hee-Eon Kang follows. First, the typical man wore his hair in a topknot(sangtu), and put on 'Bung-gu-ji', 'Lip', or a scarf on his head. The length of the 'Jeogori'(Korean traditional jacket) was long enough to cover the waist. Dress for work had side slits, and had half length sleeve Jeogori, and short pants looked like 'Jam-bang-i'. They went barefoot and wore 'Jipsin'(Korean traditional straw shoes). Dress for outdoor was 'Po' that knot at front of chest by band. 'Baji'(slacks) were with knot below knee, worn 'Hang-jun'(ankle band) and the width of slacks was suitable. They were 'Beoseon'(Korean traditional socks) and shoes. Second those in the upperc1ass and those in the military put on 'Mang-geon', 'Gat', 'Sa-bang-gan', 'Tang-geon', 'Bok-geon' on their head on a topknot. Most of them wore 'So-chang-i', 'Jung-chi-mag' or 'Do-po'. The length of Jeogori covered the waist or the hip and were tied with 'Go-rum'(ribbon). Baji was tied with Hang-jun and 'Dae-nim'. The waist of the slacks were tied with a dark colored waist-band and folded down their waist of slacks. They wore white color Beoseon and 'Hye' or dark color leather shoes. They wore 'Sup'(assistant of arm) for bow. It showed the lifestyle of the 18C with fan, 'Be-ru', 'Mug', 'Yun-jug', teacup, pot, etc. Third, child's hair was short or knotted to the back of the head. The length of Jeogori reached waist line, Git of Jeogori was 'Dunggurai-Kit'(shape of round) and other style Jeogori, which reached the hip line, had side-slit. Baji was tied with Dae-nim, and the width of the slacks is suitable. They hang 'Yum-nang'(Pocket). Final, most women worked outdoors wearing their hair in a high twisted style, or covered it with scarf. They wore Jeogori and 'Chima'(Korean traditional skirts), Bagi. They folded up the sleeves of the Jeogori. And they folded the 'Jambang-i-styled' pants to just above the knees, fastening at the waist. When they wore skirts, they also wore underpants under the skirt that went down to the knees. Most of them went barefoot and wore straw shoes, Jipsin. Through genre paintings, we can understand the ways and forms of our ancestor's clothing. And with our understanding, interest, and passion, we can be familiar with Hanbok in our daily life by succeeding and creating its peculiar style. And then we can promote the globalization of Hanbok.

• Transactions of the Korean Society of Mechanical Engineers B
• /
• v.35 no.12
• /
• pp.1249-1255
• /
• 2011

In modern large-scale semiconductor manufacturing clean rooms, the energy consumed by the outdoor air-conditioning system during heating, humidification, cooling, and dehumidification of the incoming outdoor air represents about 45% of the total air-conditioning load required to maintain a clean-room environment. In particular, the energy required for humidification of the outdoor air in winter is very high. Therefore, evaluation and comparison of the energy consumption in key humidification systems, viz., steam-humidification and water-spray-humidification systems, used in outdoor air-conditioning systems would be useful to reduce the outdoor air-conditioning load in clean rooms. In the present study, an experiment with an outdoor air flow of 1000 $m^3$/h was conducted to compare the air-conditioning process and energy consumption in outdoor air-conditioning systems with electrodeboiler steam humidifiers and air-washer water spray humidification systems. The experimental results showed that the water-spray-humidification-type outdoor air-conditioning system consumed less electrical power than did the steam-humidification-type system and was more energy efficient during winter.

• Restorative Dentistry and Endodontics
• /
• v.27 no.1
• /
• pp.44-53
• /
• 2002

목적 : 최근 개발된 bonding agent 중 일부는 다양한 함량의 filler를 포함하고 있으며 filler의 첨가는 bonding agent의 기계적인 물성을 향상시킴으로써 접착력의 향상에 기여한다는 주장이 있다. 본 연구에서는 다양한 함량의 filler를 포함한 adhesive를 실험적으로 만들어, filler의 함량이 전단접착강도에 미치는 영향을 살펴보고 임상적으로 가장 적절한 filler의 함량을 알아보고자 하였다. 또 adhesive의 간접인장강도를 측정하여 adhesive의 기계적인 물성과 접착력과의 상관관계를 알아보았다. 방법 : 발거된 건전한 70개의 대구치를 투명 레진에 매몰하고 상아질면을 노출시켰다. 3M사의 Scotchbond Multipurpose의 etchant와 primer를 제조사의 지시대로 적용하고 1$\mu\textrm{m}$크기의 barium glass filler를 0, 5, 10, 15, 20, 30, 45wt% 포함하도록 실험적으로 제작한 adhesive를 도포한 후 레진을 충전하여 시편을 완성하였다. Instron으로 0.5mm/min의 속도에서 전단접착강도를 측정하고 그 단면을 입체현미경으로 관찰하여 파절의 양상을 확인하였다. Filler함량에 따른 adhesive의 후경을 측정하기 위해 상기한 방법으로 시편을 제작하여 주사 전자현미경으로 관찰한 후 Sigmascan을 이용하여 그 후경을 측정하였다. 또, 지름 4mm 높이 6mm의 원통형 시편을 제작하여 Instron로 간접인장강도의 측정을 시행하였다. 얻어진 결과는 Kruskal-Wallis test와 Mann-Whitney test를 시행하여 분석하였으며, 상관관계를 분석을 위해 Pearson Product Moment Correlation Coefficient를 구하였다. 결과 : 1) Filler함유량에 따라 전단접착강도는 유의할 만한 차이를 보였다(p<0.05). 2) Filler함량의 증가에 따라 전단접착강도는 유의하게 증가하여 15% 수준에서 가장 높은 갈(19.9$\pm$1.38Mpa)을 보였으며 20% 이상의 수준에서는 유의하게 감소하였다(p<0.05). 3) Adhesive의 간접인장강도는 20% 수준까지는 증가하는 양상을 보였으나 통계적 유의성은 없었으며(p>0.05), 30% 이상에서는 유의할 만한 감소를 보였다(p<0.05). 4) Adhesive의 후경은 0% 수준에서 5.97$\pm$1.23$\mu\textrm{m}$부터 45%수준에서 73.37$\pm$11.7$\mu\textrm{m}$까지 유의하게 증가하였다(p<0.05). 5) Filler함량에 따른 Adhesive의 간접인장강도와 전단접착강도는 상관관계가 없었다.