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導入 機器의 效率的 活用을 위한 敎授-學習 敎材의 開發 : 8 個 學科 共同 硏究
李昌甲,孟琦錫,李載元,朴萬植,廷吉煥,金鍾悟,朴景采,李英浩,李東周,邕章祐,柳盛淵,趙澤東,姜理錫,李殷雄,李興浩,金健中,韓相玉,金良模,張錫明,朴俊灝,洪鳳植,金太均,金再韓,宋海永,盧載星 충남대학교 공업교육연구소 1982 論文集 Vol.5 No.1
In this study, through the combined effort and collaboration of 8 engineering education departments, teaching-learning processes and models were reviewed, and printed and bound student manuals developed on 120 different tasks and subjects. Audio-visual supportive material, already in use in laboratories, was added to form a complete teaching-learning package. In addition to promoting the maximum use of the newly acquired equipment, this study will also contribute to the development of laboratory practice, the in-service training of technical high schools teachers and help in the development of their own instructional program.
A systematic approach for effective marketing strategies in base of the pyramid (BOP) market
MS Jai-sung Hwang,MS Minhee Lee,Yihun Jeong,Yoo S. Hong 대한산업공학회 2019 대한산업공학회 추계학술대회논문집 Vol.2019 No.11
BOP (base of the pyramid) market is defined as a market segment that consists of consumers who earn lower than $10 per day and it is known that over 60% of world population is account for this segment. Henceforth, in spite of low purchasing power and high risk, BOP market still retains high potential. The purpose of this study is to classify the characteristics of BOP market in each country and to suggest marketing strategies optimized for each market. To this end, based on real business cases (22 successes, 13 failures) in 35 BOP markets worldwide, 4 key factors (GDP growth rate, electricity usage per person, income rate of 20-40 percentiles of pyramid, and cultural distance) representing the characteristics of the market were extracted. And then, marketing strategies used by companies in BOP markets were classified into 4 categories (less quantities, business to business (B2B), civilizing education, and social needs). With these 4 factors and 4 strategies, patterns were derived between the market characteristics and marketing strategies for successful business using support vector machine. As a result, we found that, in the BOP market of countries with relatively high GDP growth rate and high electricity usage per person, it is effective to conduct civilizing education strategy for potential customers. But in the BOP market of countries with high GDP growth rate and low electricity usage per person, business strategy in the form of B2B (business to business) with a domestic company in a marketing target country is more favorable. The result of this study would provide new insights to understand the characteristics of BOP market for companies to enter BOP market successfully.
이명순(MS Lee),한혁동(HD Han),이영진(YJ Lee),권장연(JY Kwon),차동수(DS Cha),한상원(SW Han),정인배(IB Chung),김대현(TH Kim) 대한산부인과학회 1992 Obstetrics & Gynecology Science Vol.35 No.5
This is clinical data based on the 343 cases of infertility patients visited to Wonju Christian Hospital during 4 years of period from November 1986 to July 1990. The results are as follows : 1. The annual incidence of infertility was 2.7% of total 12,507 out-patients and it was increased tendency during 1986∼1990. 2. The incidence of primary and secondary infertility was 44.3% and 55.7%, respectively. 3. Primary and secondary infertility were most common in 26∼30 years of age and the mean age was 28.9 and 30.2 years, respectively. 4. The duration of infertility varied 1∼20 years period and 1∼5 years duration was the most common which comprise about two third in primary and secondary infertility patients, the mean duration was 4.9 and 5.6 years, respectively. 5. The mean age of the menarche in primary and secondary infertility patients was 15.3 and 15.1 years, respectively. 6. The most common past history in primary and secondary infertility patients was pelvic inflammatory disease (35.8%) and previous operation (38.5%), respectively. But single the most common past history in secondary infertility was post-tubal ligation status (27.1%). 7. The etiologic factors of infertility were male (11.0%), ovulatory (24.9%), tubal (36.6%), uterine (5.1%), cervical (3.9%), peritoneal (2.3%), combined (7.4%), and unexplained (8.6%) one.