• 물과 미래
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• 제9권1호
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• pp.38-42
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• 1976

Because of differences in thoughts and ideology, our country, Korea has been deprived of national unity for some thirty years of time and tide. To achieve peaceful unification, the cultivation of national strength is of paramount importance. This national strength is also essential if Korea is to take rightful place in the international societies and to have the confidence of these societies. However, national strength can never be achieved in a short time. The fundamental elements in economic development that are directly conducive to the cultivation of national strength can be said to lie in -a stable political system, -exertion of powerful leadership, -cultivation of a spirit of diligence, self-help and cooperation, -modernization of human brain power, and -establishment of a scientific and well planned economic policy and strong enforcement of this policy. Our country, Korea, has attained brilliant economic development in the past 15 years under the strong leadership of president Park Chung Hee. However, there are still many problems to be solved. A few of them are: -housing and home problems, -increasing demand for employment, -increasing demand for staple food and -the need to improve international balance of payment. Solution of the above mentioned problems requires step by step scientific development of each sector and region of our contry. As a spearhead project in regional development, the Saemaul Campaign or new village movement can be cited. The campaign is now spreading throughout the country like a grass fire. However, such campaigns need considerable encouragement and support and the means for the desired development must be provided if the regional and sectoral development program is to sucdceed. The construction of large multipurpose dams in major river basin plays significant role in all aspects of national, regional and sectoral development. It ensures that the water resource, for which there is no substitute, is retained and utilized for irrigation of agricultural areas, production of power for industry, provision of water for domestic and industrial uses and control of river water. Water is the very essence of life and we must conserve and utilize what we have for the betterment of our peoples and their heir. The regional and social impact of construction of a large dam is enormous. It is intended to, and does, dras tically improve the "without-project" socio-economic conditions. A good example of this is the Soyanggang multipurpose dam. This project will significantly contribute to our national strength by utilizing the stored water for the benefit of human life and relief of flood and drought damages. Annual average precipitation in Korea is 1160mm, a comparatively abundant amount. The catchment areas of the Han River, Keum River, and Youngsan River are $62,755\textrm{km}^2$, accounting for 64% of the national total. Approximately 62% of the national population inhabits in this area, and 67% of the national gross product comes from the area. The annual population growth rate of the country is currently estimated at 1.7%, and every year the population growth in urban area increases at a rising rate. The population of Seoul, Pusan, and Taegu, the three major cities in Korea, is equal to one third of our national total. According to the census conducted on October 1, 1975, the population in the urban areas has increased by 384,000, whereas that in rural areas has decreased by 59,000,000 in the past five years. The composition of population between urban and rural areas varied from 41%~59% in 1959 to 48%~52% in 1975. To mitigate this treand towards concentration of population in urban areas, employment opportunities must be provided in regional and rural areas. However, heavy and chemical industries, which mitigate production and employment problems at the same time, must have abundant water and energy. Also increase in staple food production cannot be attained without water. At this point in time, when water demand is rapidly growing, it is essential for the country to provide as much a reservoir capacity as possible to capture the monsoon rainfall, which concentarated in the rainy seaon from June to Septesmber, and conserve the water for year round use. The floods, which at one time we called "the devil" have now become a source of immense benefit to Korea. Let me explain the topographic condition in Korea. In northern and eastern areas we have high mountains and rugged country. Our rivers originate in these mountains and flow in a general southerly or westerly direction throught ancient plains. These plains were formed by progressive deposition of sediments from the mountains and provide our country with large areas of fertile land, emminently suited to settlement and irrigated agricultural development. It is, therefore, quite natural that these areas should become the polar point for our regional development program. Hower, we are fortunate in that we have an additional area or areas, which can be used for agricultural production and settlement of our peoples, particularly those peoples who may be displaced by the formation of our reservoirs. I am speaking of the tidelands along the western and southern coasts. The other day the Ministry of Agriculture and Fishery informed the public of a tideland reclamation of which 400,000 hectares will be used for growing rice as part of our national food self-sufficiency programme. Now, again, we arrive at the need for water, as without it we cannot realize this ambitious programme. And again we need those dams to provide it. As I mentioned before, dams not only provide us with essential water for agriculture, domestic and industrial use, but provide us with electrical energy, as it is generally extremely economical to use the water being release for the former purposes to drive turbines and generators. At the present time we have 13 hydro-electric power plants with an installed capacity of 711,000 kilowatts equal to 16% of our national total. There are about 110 potential dams ites in the country, which could yield about 2,300,000 kilowatts of hydro-electric power. There are about 54 sites suitable for pumped storage which could produce a further 38,600,000 kilowatts of power. All available if we carefully develop our water resources. To summarize, water resource development is essential to the regional development program and the welfare of our people, it must proceed hand-in-hand with other aspects of regional development such as land impovement, high way extension, development of our forests, erosion control, and develop ment of heavy and chemical industries. Through the successful implementation of such an integrated regional development program, we can look forward to a period of national strength, and due recognition of our country by the worlds societies.

• 자원리싸이클링
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• 제29권6호
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• pp.3-14
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• 2020

석탄재로부터 희토류 회수에 관한 연구 자료를 분석 및 검토하였다. 석탄재로부터 희토류 회수를 위해 적용된 선별 실험은 주로 PC 보일러로부터 발생된 석탄재를 대상으로 입도분리, 자력, 비중 및 부유선별법 등을 이용해 연구하였다. 선별 공정을 통해 희토류 성분의 농축 가능한 수준은 수 천 ppm 정도로 낮게 확인되었고, 선별 공정 이후 회수된 산물을 대상으로 습식 제련 공정을 통한 추가 농축 처리가 필요한 것으로 확인되었다. 침출 공정에서는 석탄재의 희토류 성분을 침출 향상을 위해 알칼리 용융과 같은 전처리 후, 침출공정에 적용하는 것이 효율적인 공정으로 확인되었다. 세계적 희토류 회수 시스템의 개발이 아직은 미흡한 것으로 확인되었으나, 석탄재에 포함된 희토류 회수 연구는 계속 진행될 것으로 보고되었다. 국내에서는 석탄재 중 희토류 회수를 위한 회수 기술이 매우 부족한 상황으로 선별, 침출 등의 기술 개발이 시급한 실정이다.

• Journal of East Asia Management
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• 제1권1호
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• pp.65-87
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• 2020

In recent years, with the rapid development of network live streaming, with the popularization of mobile Internet and mobile terminal equipment, the live streaming industry has ushered in great development. A sudden outbreak of the COVID-19 makes the PC end live streaming which has been developed for many years enter a new era, giving birth to the rapid development of mobile end live streaming. Not only because of the expansion of the live streaming industry market, the rise of the trend of the national live streaming, but also because the mobile live streaming is more and more valued by the brand, becoming an important tool for brand communication and product promotion. It is because of its unique communication characteristics that some scholars believe that the era of precision marketing has been opened by live network. Mobile live from the initial fans to reward and promote the brand, to now in the form of live marketing, consumers can "buy while watching". The time period from the understanding of the goods to the final completion of the purchase behavior has been greatly shortened. It is conducive to improving sales volume and brand awareness. Marketing communication through mobile live platform has become a popular way of brand marketing. This paper mainly studies the current situation, methods, problems and development strategies of brand marketing activities with the help of live streaming platform under the background of mobile internet. Taking Tmall live streaming platform as an example, this paper analyzes several ways of brand marketing with the help of live streaming and some universal characteristics of live streaming marketing by using the relevant theories of marketing. In view of the problems existing in live streaming brand marketing, it puts forward relevant Improvement measures. First of all, the paper puts forward the innovation in content and form. Second, the paper suggests that we should make full use of new technologies such as AR and VR to effectively combine with mobile live broadcasting. Third, the paper explores the integration of multiple channels to create intelligent marketing, and further optimize the live interface of mobile terminals. Finally, the paper emphasizes that the government departments and the platform itself should jointly supervise the mobile network live streaming platform and establish a good live broadcasting environment for mobile terminals. With the help of mobile live streaming, the marketing mode has an important impact on the promotion of brand marketing. How to make better use of this business mode and accurately use mobile live broadcast to promote brand marketing, so that enterprises can create greater profits, is also of profound research significance.

• 한국수산과학회지
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• 제54권6호
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• pp.880-889
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• 2021

The home meal replacement (HMR) market has attracted significant attention due to COVID-19 pandemic and products that utilize the combination of different processed ingredients are now being developed. In this study, Broughton's ribbed ark Scapharca broughtonii was soaked in seasoned soy sauce with the incorporation of mustard leaf Brassica juncea (M-BRA), which is known to have a unique texture as well as excellent functional properties such as antioxidation, to develop a regional specialty product. The optimal conditions for manufacturing M-BRA from the seasoned soy sauce (the sauce to be added [X₁] and the soaking time [X₂]), were examined using response surface methodology (RSM) to analyze the significance of the salinity (Y₁), amino-N content (Y₂), and overall acceptance (Y₃). The coefficient of determination (R²) between X₁-X₂ and Y₁-Y₃ were close to 1, thereby confirming the suitability of the RSM model. The optimal conditions were seasoned soy sauce addition of 140% and soaking time of 156 min. The M-BRA manufactured under these conditions exhibited superior overall acceptance compared to seasoned commercial soy sauce, which was used as a control. We expect that the market for M-BRA manufactured by combining marine and agricultural materials will expand owing to superior overall acceptance compared with commercial products.

• 한국자원식물학회지
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• 제16권1호
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• pp.40-48
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• 2003

C. destructans는 인삼에서 가장 문제가 되고 있는 뿌리섞음병을 유발하는 매우 중요한 미생물이다. 현재까지 정상적인 인삼포장이나 폐포지에서도 이 병원균의 농도를 조사할 만한 방법이 없어 이를 쉽게 조사함으로서 인삼 예정지 관린시 도움을 줄 수 있는 새로운 방법이 절실이 요구되고 있다. 본 연구에서는 nested PCR이란 분자생물학적 방법을 이용하여 효과적으로 매우 낮은 농도의 C. destructans을 검출할 수 있는 방법을 개발하였다. 2개의 universal ITS primers(ITS5F와 ITS4R)을 사 용 하 여 Cylindrocarpon spp.의 rDNA로부터 ITS영역을 증폭하였다. 이어 C. destructans의 specific primer(Nest 1 과 Nest 2)을 사용하여 최적의 PCR조건으로 재증폭시켜 밴드를 확인하였다. 또한 이런 2번의 과정을 4개의 primer를 동시에 사용함으로서 한번에 확인할 수 있는 방법을 개발하였으며 이에 따른 PCR조건도 확립하였다. 따라서 본 방법에 의해서 인삼포장의 토양에서 채취된 매우 낮은 농도의 wild type C. destructans spore로부터 성공적으로 positive band을 확인함으로써 추후 인삼포장의 선정 및 4년생에서 6년까지(홍삼포) 재배기간등의 예측에 활용 될 것으로 생각된다.

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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• pp.111-111
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• 2003

Several fungal isolates were isolated from diseased monochoria(Monochoria vaginalis, weed of paddy field), which has an resistance to sulfonyl urea(S.U.) herbicide, and were evaluated in the laboratory and greenhouse as potential mycoherbicide. Eight fungi, Alternaria sp., Colletotrichum sp., Curvularia sp., Paenicillium sp and etc. were observed in the isolates. Pathogenicity testing were done on the monochorias in the greenhouse. Monochorias were inoculated with suspensions containing conidia of each isolate at the rates of 1.0 ${\times}$ 10$\^$5/ conidia/ml and 0.1％ Tween 80 with hand-gun sprayer. Curvularia sp. and an unidentified fungal isolate caused 90-95％ mortality on the monochorias 15∼20 days after inoculation. However the other isolates induced slight symptom of disease on the monochorias. In the early stage of disease development sun-burn appearance was shown at the infected site and the last infected leaves and stems were withered to death. Subsequently the pathogenicity on the rice was evaluated with above two effective isolates. From the test an unidentified isolate showed pathogenicity on the rice but Curvularia sp., named as DBB2003, didn't. Now the mass production and formulation using Curvularia sp. DBB2003 are in progress and the field test will be followed. Combination product with Curvularia sp. DBB2003 and chemical herbicide will be more effect to control the monochoria resisted on S.U. herbicide and need to be further tested.

• 한국지역사회생활과학회지
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• 제15권3호
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• pp.21-28
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• 2004

Marketing of traditional doenjang (a kind of fermented soybean product) is now focusing on its health advantages, being proven to have anti-viral, anti-cancer and anti-oxidant effects. The purpose of this study is to investigate the consumption patterns of traditional doenjang in the households managed by different generations of women living in Gyeonggi area. Six hundred housewives answered the questionnaire. Statistical analyses were performed on 590 subjects using SAS (ver 8.1). Chi-square tests and General Linear Models were used. The age distribution of housewives was as follows: 42.9% were in their 30s; 40.9% were in their 40s; and 16.2% were in their 50s. 57.5% of subjects graduated with high school education while 72.8% of subjects did housework only. Overall, 47.2%, prepared their doenjang themselves, while the remainder purchased it or received it from relatives. This percentage differed however according to age group, as self-preparation of doenjang was found in only 22% of housewives in their 30s, but increased to 83% of subjects in their 50s. 53.4% of subjects had their doenjang donated to them by relatives, compared with only 3.1 % of subjects in their 50s. Most of dishes using doenjang were soups and stews. Those housewives in their 50s made significantly higher use of doenjang in soup, wrapping vegetables (ssamjang), seasoning, and flat cake (jangttok). Doenjang dishes were prepared for the husband in the family 59.2% of the time, followed by housewives 15.4% of the time. Annual consumption of doenjang was 5.1kg. and Kanjang was 4.4L per household; there was no significant difference between the age groups respecting annual consumption. From such results, we may assume a decrease in home-made doenjang among younger generations and an increase in the amount of purchased doenjang. We can predict an increased need for doenjang of better quality. Also the development of new products such as ready-to-eat or fast food variants would better serve the trend towards convenience.

• 한국콘텐츠학회논문지
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• 제17권6호
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• pp.22-31
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• 2017

본 연구는 커뮤니티 비즈니스가 균형적으로 성장하기 위해서 적합한 시스템이 요구되고 그에 대한 발전 방향을 모색하고자 하는 인식에서 연구를 시작하였다. 첫째, 커뮤니티 비즈니스의 효과적인 성과평가를 위하여 균형성과표에 기반을 둔 성과평가 모형을 개발하였다. 둘째, 평가요인의 1차 관점별 2차 지표의 상대적 중요도는 이해관계자 관점에서는 지역주민 참여율, 학습과 성장 관점에서는 내부교육 만족도, 내부프로세스 관점에서는 업무프로세스 단축, 지속가능성 관점에서는 1인당 매출액의 상대적 중요도가 높게 나타났다. 셋째, 각 지표별 종합적 가중치 산정 결과는 지역주민 참여율, 지역과의 사업연계, 1인당 매출액이 상위그룹으로 나타났다. 이상의 결과에서 관주도로 이루어진 커뮤니티 비즈니스를 중간지원조직 양성을 통한 경영지원이 필요한 시점이고, 외부컨설팅 연계, 주요 기업과의 전략적 제휴를 통한 제품 및 서비스 향상의 필요가 있음을 강조한다.

• 한국정밀공학회지
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• 제19권8호
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• pp.212-219
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• 2002

The pipe with a long-neck flange is widely used in power plants, chemical plants, and shipbuilding companies. Now the pipe with a long-neck flange is manufactured by welding a thick flange to a pipe. But this long-neck flange pipe has some defects in the welding region such as unfitting and local thermal fatigue, which weaken the strength around the neck of the flange. Moreover, after welding the flange, the contacting surfaces of the flange have to be machined flat. So, that is uneconomical. Therefore, to solve the above problems of the long-neck flange pipe, a new process, which has no defects around the flange neck, is required. In this study, three forming processes are suggested to get an enhanced long-neck flange. First suggested process consists of conical forming and flange forming. Second and third suggested processes consist of the bulging of a long pipe locally heated by induction coils and the flange forming. The differences between second and third suggestions are the thickness and local heating area of the pipe. That is, the thickness of the initial pipe of third suggestion is larger than that of the final product, and the local heating area is smaller than that of second suggestion. These three suggestions for forming a long-neck flange are simulated by FE analyses with a commercial code DEFORM 2D. Especially, the theoretical result of FE analysis on the first suggestion for forming a long-neck flange is verified by the experiment with aluminum 6063 pipes. From the theoretical and experimental results, it is concluded that three suggested processes are very useful in order to manufacture the pipe with a long-neck flange without any defects.

• 한국GIS학회:학술대회논문집
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• 한국GIS학회 2008년도 공동추계학술대회
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• pp.153-161
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• 2008

Agriculture and forest are basis for livelihood in Nepal while both sectors constitute around 40 percent of the national product and over two-thirds of the economically active population is dependent on agriculture. However, radical changes in land use, depletion in crops production and food availability are major threats due to loss of soil fertilityand severe environmental degradation. In this study, we used time series data from 1986/87 to 2005/06 about food crop production and population published by Government of Nepal, Ministry of Agriculture and Cooperatives and Central Bureau of Statistics. Descriptive statistics and ArcGIS were used to assess and map the food security status of Nepalese Terai based on the local food demand and supply system. Food supply to demand ratio(FSDR) was the main idea of assessment. Our results showed that out of 20 districts, only 8 districts were categorised under secured food districts whereas 5 districts were still under food unsecured situation. The analysis further revealed that 7 districts had faced food deficit more than 8-16 times during the last 20 year periods. Data further showed that there was surplus food supply relative to the requirements dictated by FSDR. However, the average FSDR was less than 1.2(less than 20% surplus) exploring fact that most of the districts were not producing sufficient food to cope up the food shock and after 1995 it was relatively stagnant. Our prediction reveals that food supply in Terai even in the future would remain at almost the same level as now, and there will not more than 16-17% surplus by 2021 considering medium vibrant population growth. The findings thus, indicate that Terai may not be a food secure region in the future, even though the region is considered as a food storage house of Nepal. In addition, this paper suggests ways to make future comprehensive case studies more widely comparable in Terai, Nepal.