• Journal of Nutrition and Health
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• 제16권2호
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• pp.107-114
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• 1983

There has been no specific test available for identifying the sesame oil among common edible oils. As the contents of sesamin and the ratio of sterols allowed the estimation for the genuine sesame oil, the author investigated to establish some instrumental methods for verification of genuine sesame oil and its distribution in the market. The sesame oil was saponified and the sesamin and sterols were isolated from the unsaponiable fraction by Florisil column chromatography. The individual components were determined by gas- chromatography and sesamin standard (purified sesamin) was obtained by silicagel column chromatography. The gas- chromatographic condition using Flame Ionization Detector supported on 10% OV-101 with di-(2-ethylhexyl) sebacate as an internal standard was suitable, and quantitation of sesamin and sterols, including campesterol, stigmasterol and ${\beta}-sitosterol$ was carried out. The results of this study showed that contents of sesamin in genuine sesame oil were 0.3-0.5% and the ratio of stigmasterol to compesterol was 0.3-0.6 and ${\beta}-sitosterol$ to campesterol 3.0-3.8. The 50 samples from the markets in Seoul were composed of 70% genuine sesame oil, and others were mixed with palm oil, rape seed oil and soybean oil.

• 무역상무연구
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• 제49권
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• pp.493-518
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• 2011

The term rules of origin(RoO) actually speaks for itself, referring to the rules which determine the origin of goods in international trade. The importance of RoO has grown significantly as preferential agreements expand and countries have treated similar imported goods differently according to where the product was made. The purpose of this paper is to study the main case study and its implication of RoO in FTAs. According to survey, the degree of using FTAs in Korea export firms is sharply low. Major reasons are that rules of origin differ from country to country in the FTAs, and that Korean firms have yet to work out what the RoO are. Chapter II of this paper views criteria of the determination country of origin of goods. Chapter III introduces the main case study of FTA rules of origin. Chapter VI presents implication through the case studies and finally concluded this study. In conclusion, Korea needs to build up its own position for rules of origin and provides rules of origin experts into the market. In-depth study and evaluation about Korea's existing FTAs RoO should be carried out to prepare for future FTAs.

• 한국실내디자인학회논문집
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• 제13권4호
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• pp.164-171
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• 2004

Currently, the beauty of Korean traditional furniture has been changed irregularly and even the traditional character has been distorted. The purpose of the study is to examine the current situations of traditional bedroom-furnitures that are reproduced and sold at the markets in Korea. The eight companies were selected as a research sample. All those companies also participated at the "Living-design Fair 2003 and 2004" The traditional bedroom-furnitures were the limited products as a research target. As a method of the research, the content analysis such as names, dimensions and types was used. The results of research were as follows： 1) Using the confused names for a same item, 2) Changes of dimensions, 3) Diversification of the types, 4) Mixing with Japanese style furniture in the Korean traditional furniture market. On the basis of the results, selected eight companies were divided into three types： First, representation of traditions near to the prototype, second, reforming to be suitable to the contemporary life-style, and the last, mixing of Japanese style furniture. This research will make us be concerned about reproduced Korean traditional furniture and established the position to seek for Koreanity. This research expected to be a reference to develope Korean traditional furniture industry, opportunity of verification for reproduced Korean traditional furniture companies and find out the change of life-style through a comparison analysis of the original traditional furniture.furniture.

• 유통과학연구
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• 제18권9호
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• pp.45-53
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• 2020

Purpose: This study aims at investigating consumers' choice in online food purchasing behavior and the impact on repurchase for fresh food delivery which has recently shown rapid growth in Korea. The study focuses on the user experience factors af fecting satisfaction and intention to continuously use the online food market. Research design, data and methodology: The survey was conducted by 309 people who had purchased fresh food online, and the analysis was conducted using SPSS and AMOS. Structural Equation Modeling was used for the analysis for the verification of hypotheses. The factors that consumers value when ordering fresh food delivery services were defined as system quality, service quality, commodity quality, brand characteristics, and economics from the preceding study and the relationship between satisfaction and willingness to repurchase was verified. Results: When consumers purchase fresh food online, system quality, product quality, brand characteristics, and economics have had a significant impact on satisfaction. Meanwhile, of the five optional attributes of consumers, only economic efficiency has been verified to have a statistically significant impact on repurchase intentions. Conclusions: The results of the study suggested factors that consumers consider important when ordering fresh food online, providing basic data for companies to develop related strategies.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.1351-1354
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• 2005

Recently, as the feasibility study shows that trans-Korea railway and trans-continental railway are advantageous, interest in high speed railway system is increasing. Because railway vehicle is environment-friendly and safe compared with airplane and ship, its market-sharing increases gradually. Korean High Speed Train has been developed by KRRI for last 7 years to satisfy the need. Korean High Speed Train (350km/h), composed of 2 power cars, 2 motorized car and 3 trailer cars, has been developed and is under trial test. To verify the design requirements for the functions and traction performances of the train, KRRI (Korea Railroad Research Institute) decided to evaluate traction performances of the train during trial test. For this purpose, torque, velocity, voltage and current must be measured. KRRI has developed a measurement system that can measure vast and various signals effectively. In this paper, we introduce traction performances of Korean High Speed Train. The traction measurement items are focused on the verification of motor block performances. Motor block consists of 2 motors. By this test, we verified traction performances of Korean High Speed Train

• KIEAE Journal
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• 제17권4호
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• pp.33-39
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• 2017

Purpose: The use of renewable energy system is essential for building energy independence and saving energy consumption in the building sector. Among renewable energy technologies, ground source heat pump(GSHP) system is more energy-efficient and environmental-friendly than other heat source systems due to utilize stable ground heat source. However, the GSHP system requires a high initial installation cost and installation space in limited urban area, so it is difficult to have superiority in the market of heat source system. Therefore, it is necessary to develop the installation method of low-cost and improve system performance. This paper aims to evaluate the performance of double u-tube ground heat exchanger(GHX) and verify system feasibility through real-scale experiment. Method: In this study, the real-scale experiment of vertical closed-type GSHP system was conducted using double u-tube GHX and high-efficiency grout. Through the verification experiment, heat source temperature, heat exchange rate(HER) and seasonal performance factor(SPF) were measured according to the long-term operation. In addition, the feasibility analysis was conducted comparing to the single u-tube system. Result: In the results of experiment, average HER was 136.27 W/m and average SPF was 5.41. Furthermore, compared to the single u-tube, the installation cost of the developed system could be reduced about 70% in the same heating load condition.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
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• pp.427-432
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• 2004

최근 건설시장의 경쟁이 치열해지고, 건설생산성을 향상시키는 것이 기업의 경쟁력 확보라는 인식이 높아짐에 따라 건설업에서도 생산성과 효율성에 대한 관심의 풍요도가 증대되고 있다. 본 연구에서는 기존의 생산성 측정 방식을 활용한 사례조사를 통해 생산성을 측정하고 측정된 내용에 근거하여 작업개선사항을 제시하였다. 제안된 개선사항은 시뮬레이션(simulation)기법을 동해 검증하였다. 본 논문의 의의는 생산성 측정을 분석하는데 있어 시뮬레이션 기법이 현장여건을 모두 고려한 최적의 대안은 아니지만 현장관리자로 하여금 상황에 적합한 최적의 작업방식을 선택하게하고 생산량을 예측할 수 있는 방법을 제시했다는 점에 있다.

• 한국기계가공학회지
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• 제2권2호
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• pp.14-21
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• 2003

Rapid prototyping(RP) has been used for design verification and proto sample or mold manufacturing. Many RP systems have been introduced into the market during the past 15 years. However, until now, the systems have used mainly for external physical models (mono function), and have the basic but critical limitation of one material on one stage (mono material). To overcome the limitations of mono-material and mono-function of conventional. RP systems, the concept of Functional Phototype Development (FPD) is newly proposed in this paper FPD provides the necessary prototype functions such as mechanical, optical, chemical and electrical properties in order to meet the broad requirements of the industry. The paper illustrates the representative achievements of electronic components such as the multi-layer printed circuit board(MLB). Experimental results demonstrate that FPD has great potential applied to broad industrial uses and that It Will be a powerful tool in the neat future.

• 지식경영연구
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• 제18권1호
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• pp.67-81
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• 2017

As the important breakthrough continues in the field of machine learning and artificial intelligence recently, there has been a growing interest in the analysis and the utilization of the big data which constitutes a foundation for the field. In this background, while the economic value of the data held by the corporates and public institutions is well recognized, the research on the evaluation of its economic value is still insufficient. Therefore, in this study, as a part of the economic value evaluation of the data, we have conducted the economic value measurement of the data generated through the small business guarantee program of Korean Federation of Credit Guarantee Foundations (KOREG). To this end, by examining the previous research related to the economic value measurement of the data and intangible assets at home and abroad, we established the evaluation methods and conducted the empirical analysis. For the data value measurements in this paper, we used 'cost-based approach', 'revenue-based approach', and 'market-based approach'. In order to secure the reliability of the measured result of economic values generated through each approach, we conducted expert verification with the employees. Also, we derived the major considerations and issues in regards to the economic value measurement of the data. These will be able to contribute to the empirical methods for economic value measurement of the data in the future.

• 한국의상디자인학회지
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• 제7권3호
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• pp.27-37
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• 2005

This study is aimed at the ready-mades size system and satisfaction of consumers size for woman's wear at domestic market which are made by public production systems. This study, particularly, is focused on jacket of 20-30 aged woman's wear in twenties & thirties female clothe. The procedures of this study are as follows; 1. Select 25 domestic clothing companies that its product has targeted in twenties & thirties female and investigate the system of each pattern size 2. Select 259 female in twenties & thirties randomly in Seoul survey a standad of females jacket purchase. Analysis of this study is based on SPSS statistics program, technical statistics, $X^2$ and ANOVA verification. The results of studying are as follows; 1. The survey of pattern size of the domestic females clothing companies has shown some distinctive feature at age and body type of their consumers. 2. Crucial point of female consumers in twenties & thirties is a design and fitness of their jacket while they are purchasing their jacket. 3. Female consumers have some dissatisfaction for the variety of size, difficulty of purchasing and size of bust, shoulder & length of arms of their jacket.