• Journal of Chest Surgery
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• v.34 no.11
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• pp.875-878
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• 2001

Background: Although sclerotherapy is an established procedure in treating varicose veins, a wide disparity remains in the rates of success. The purpose of this study was to evaluate the effectiveness and complications of sclerotherapy in combination with compression. Material and Method: From December 2000 to September 2001, a combined total of 50 legs in 39 patients with primary varicose veins were treated with sodium tetradecyl sulfate as sclerosant with the empty vein technique. Immediately after the injection, local compression was increased by a cotton wool roll, and additional compression was obtained with class II medical compression hosiery. Patients were evaluated at 5 days, 1 week, 2 weeks, and 6 weeks for degree of improvement and complications. Result: There were 36 women and 3 men ranging in age from 26 to 66 years, with a mean age of 45.3 years. Good sclerosing results were obtained in all patients. Of fifty legs, five had minor complications, two small intravascular clots, two pigmentations, and one compression-related bulla, which needed no treatment. Conclusion: The use of a cotton wool roll for local compression is highly effective, and sclerotherapy in combination with compression is safe and effective in the treatment of varicose veins.

• Journal of Korean Home Economics Education Association
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• v.33 no.4
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• pp.103-117
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• 2021

Nuts are cholesterol free with high poly-unsaturated fatty acids(PUFA) and have lower intakes of sodium than non-consumers, and thus they can decrease blood pressure. Hypertension is a common primary diagnosis in Korea. Because of extending exposure to 24-hour raised blood pressure and heart rate hypertension is likely to be caused by prolonged short sleep durations. This study examined the relationship between nut consumption and hypertension according to sleep duration among Korean adult. Based on data from the 2010-2016 Korea National Health and Nutrition Examination Survey(KNHANES), the final analytic sample(n=25,359) was used for current analysis. The dietary intake was assessed through a 24-hour recall method. Associations of nut consumption with sleep duration and hypertension were determined using multiple logistic regression with odds ratio(95% CI). All the analyses were carried out in SAS version 9.4, and the significance level was set at p<0.05. With increasing nut intake, the prevalence of hypertension significantly decreased(p for trend=0.02). After controlling for sleep duration, the nut consumption showed significant association with the prevalence of hypertension when sleep duration was 6 to 6.9 h per day(p for trend=0.03) or 7 to 7.9 h per day(p for trend=0.03). In conclusion, dietary total nut intake was found to be significantly associated with the prevalence of hypertension.

• Journal of Industrial Convergence
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• v.21 no.2
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• pp.79-84
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• 2023

This study was analyzed based on 1051 analyzes of questionnaires in order to examine the status and perception of abused drugs according to the gender of the young people entering the adult group from the adolescents. The gender of the young people who participated in the survey was 686 males and 365 females, and the types of abused drugs and their perceptions of harmful effects of narcotics and abused drugs were analyzed according to gender. As a result of the study, the experience of using alcohol, tobacco, appetite suppressants, sedatives, and opioid analgesics was statistically significant according to gender. Among the harmful effects of narcotic drugs and drugs of abuse, significant results were shown on the recognition of risks, induced problems, and sympathy for risks. As for the desirable way to improve the problem of narcotics and substance abuse, 257 women (68.2%) of women wanted publicity (enlightenment) activities, and about effective education for preventing narcotics and substance abuse, 379 men (54.2%) of men %) appeared as online online education. It is considered that proper education and publicity about drug use is necessary in the reality that drug addiction among young people due to drug abuse is increasing.

• Microbiology and Biotechnology Letters
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• v.21 no.1
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• pp.82-87
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• 1993

Fourteen samples of kimchies and soy bean pastes were used to isolate strictly anaerobic bacteria on complex BL agar and on a selective BS agar for bifidus bacteria. About $10^7$ ~ $10^8$ colonies per g sample were developed on BL agar under strictly anaerobic conditions, while BS agar supported the growth of $10^3$ ~ $10^6$ colonies per gram sample at the same condition. All colonies developed on BS agar at anaerobic conditions grew in aerobic conditions and did not show fructose6-phosphate phosphoketolase activity. Type cultures of Bifidobacterium did not grow in PYG medium containig more than 3% NaCI. From these results it is conduded that salted fermented food cannot support the growth of strictly anaerobes induding Bifidobactenum.

• The Korean Journal of Malacology
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• v.7 no.1
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• pp.66-75
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• 1991

금강수위에 서식사는 패류의 중금속함량을 알아 보기 위하여 1001년 4월부터 동년 10월사이에 우기를 피하여 금강유역에서 8개 지소를 임으 선택하여 채집한 8종의 부족류 중 비교적 각 지역에서 공통적으로 채집될 수 있었던 말조개와 채첩을 각각 10개체씩 선택하여 패를 아가미, 외투막, 폐각근, 족근 및 내장기관등 각 부위별롸 나누어 Cd, Cu, Pu, Zn의 함량을 원가흡광법으로 분석하여 다음과 같은 결론을 얻었다.1. 각 부위별 중금속 함량을 전체적으로 본 평균값은 Zn을 제외하고는 전체 패류의 내장부위가 모두 다른 어느 부위보다도 매우 높은 함량을 나타냈으며, 그 다음은 지역에 따라 다소의 차이는 있언ㅆ지만 대부분 외투막과 아가미, 족근, 폐각근의 순으로 나타났다.2. 각 패류별 중금속 함량은 역시 Zn만을 제외하고는 상류로부터 하류로 내려감에 따라 중금속 함량이 높아지는 경향을 보였다.3. 여러 금속 중 Zn만이 각 부위별에서 내장부위보다 아가미, 외투막에서 비교적 높은 값을 볼 수 있었으며, 일반적으로 다른 중금속은 하류보다 상류가 그 함량이 적은 경향을 보였으나, Zn만은 상류족에서 비교적 높은 함량을 보였고, 지역에 따라 그 함량이 다른 경향을 나타내었다. Zn 다음의 중금속함량은 Cu, Pb, Cd의 순으로 그 농도를 나타내었다.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.5 no.4
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• pp.346-356
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• 2000

This study was carried out to investigate the distribution pattern of macrobenthos in the subtidal sandy bottoms of the east coast of Korea, and seasonal samplings were performed from April 1993 to February 1994. The species number of macrobenthos was in the range from 70 in winter to 109 in spring season. Polychaete worms were the most dominant faunal group in species richness and abundance, but mollusks showed the highest biomass. The mean density of macrobenthos fluctuated from 631 individuals/m$^2$ in autumn to 1,995 individuals/m$^2$ in summer. The major macrofauna in abundance were polychaetes, Spiophanes bombyx which occurred all seasons with top rank and Prionospio sp. and a mollusk, Alvenius ojianus, and crustaceans, Wecomedon sp. and Urothoidae spp. were also numerically dominant macrobenthic fauna. The macrobenthos in the study area were classified into two assemblages by water depth. However, they showed a different community structure near small rivers in autumn and winter seasons.

• Journal of Korean Society of Transportation
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• v.26 no.4
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• pp.229-239
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• 2008

Most algorithms for detecting incidents have been developed under the premise that congestion must happen whenever an incident occurs. For that reason, the performance of these algorithms could not be guaranteed in cases where congestion did not happen due to traffic operations with low flows despite the occurrence of an incident. The objective of this paper is to develop an automatic incident detection algorithm using a new diagram that can reliably detect the incident under various conditions of traffic operations including a low volume state. Compared with the McMaster Algorithm, the proposed algorithm in this paper was evaluated with three different cases in which the incidents occur in traffic operations with a low volume state, a relatively high volume state, and a recurrent congestion state. It is shown that the new algorithm has a capability to identify the flow characteristics of incidents for all the three cases and is much better than McMaster algorithm in terms of detection rate and false alarm rate.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2008.05a
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• pp.263-267
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• 2008

In this work the realistic install performance analysis of a helicopter was performed together with power extraction enabling to operate auxiliary system as well as intake pressure loss, loss due to bleed air, etc. which must be considered in practical propulsion system's performance modelling to be installed to the airframe. The pressure loss occurring in intake was estimated from the intake performance map with relationships of Mach Number and pressure loss. In order to evaluate the proposed installed performance model, the experimental data for comparison must be needed when mounted in propulsion system. However because of lack of accessibility to such real data at the moment, the alternative way was made through comparison that the analysis results by the proposed model were compared with a wellknown commercial program GASTURB's analysis results. The validity of the proposed installed performance model was consequently confirmed because its average deferences from the GASTURB's results were within 0.5%.

• Journal of the Korean Society of Propulsion Engineers
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• v.12 no.1
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• pp.51-56
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• 2008

In this work the realistic install performance analysis of a helicopter was performed together with power extraction enabling to operate auxiliary system as well as intake pressure loss, loss due to bleed air, etc. which must be considered in practical propulsion system's performance modelling to be installed to the airframe. The pressure loss occurring in intake was estimated from the intake performance map with relationships of Mach Number and pressure loss. In order to evaluate the proposed installed performance model, the experimental data for comparison must be needed when mounted in propulsion system. However because of lack of accessibility to such real data at the moment, the alternative way was made through comparison that the analysis results by the proposed model were compared with a wellknown commercial program GASTURB's analysis results. The validity of the proposed installed performance model was consequently confirmed because its average deferences from the GASTURB's results were within 0.5%.

• Transactions of the Korean Society of Automotive Engineers
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• v.16 no.6
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• pp.109-114
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• 2008

An improvement of vehicle fuel economy is one of the most important topic in automotive engineering. Lots of engineers make efforts to achieve 1% of fuel economy improvement. Engine friction is an important factor influencing vehicle fuel economy. This paper focuses on effect of engine friction on vehicle fuel economy during warm-up. A computer simulation is one of the powerful tools in automotive engineering field. Recently Simulation is attempting to virtual experiment not using expensive instruments. It is possible to presuppose fuel economy by changing the characteristic of accessories using CRUISE(vehicle simulation software). In this paper, fuel consumption at each part of the vehicle is analyzed by both of experiment and simulation. The results of fuel economy analysis on experiment substitute for Cruise to calculate fuel economy. The simulation data such as engine speed, brake torque, shift pattern, vehicle speed, fuel consumption level is well correlated to experiment data. In this paper, the change of warm-up time, faster or slower, through simulation is performed. As a result of the fast warm-up, fuel economy is improved up to 1.7%.