• 농촌계획
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• 제22권4호
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• pp.131-138
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• 2016

Recently, the cultivated area is reduced, the ratio of upland-field in the total cultivated area is increasing relative appeared in 36.2% in 1990 from 43.7% in 2013. If upland-field can be applied well designed-infrastructure, good income crop production is possible, however, maintenance of infrastructure and a significant portion of the upland-field is maintained under insufficient infrastructure. While imports of agricultural products expanded since the 2000s in progress, looking at the self-sufficiency of upland-field crops, it is reduced to from 90% to 42% for the pepper, it is from 90% to 74% for the garlic, cereals is reduced from 42% by 26%. As a result of these conditions, the competitiveness of farmers has weakened, the risk to meet the challenges of this area of production and supply reduction increased. This study was the first to conduct a basic evaluation index, data analysis and evaluation of indicators to diagnose the agricultural production capacity of the upland field. 12 kinds classified index of producing conditions from the natural environment and eight factors for the cultivation and production capabilities have developed for the assessment of productivity of upland-field (especially Kimchi cabbage). Through this regional imbalance was found, based on the production capabilities conditions are good in Haenam, Gangneung, Pyeongchang. 3 Regions have been low and the lowest Youngwol to 0.8992. Climate(Cultivation conditions) indicators of Mungyeong region is the highest, relatively low areas were in Taebaek. In particular, it is determined to be preferred that the area required for the enhancing the production environment based on providing the convenience for the producing and maintenance of the first production area. It is necessary Increasing part of mechanization, agro-industrial competitiveness through aggressive management plans for facilities as required in the process of post-harvest storage, processing, distribution line can be improved.

• Biotechnology and Bioprocess Engineering:BBE
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• 제6권3호
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• pp.189-193
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• 2001

Critical cell density (CCD), the maximum cell concentration without mutual shading in algal cultures, can be used as a new operating parameter for high-density algal cultures and for the application of the flashing light effect on illuminated algal cultures. CCD is a function of average cell volume and light illumination area. The CCD is thus proposed as an index of estimation of mutual shading in algal cultures. Where cell densities are below the CCD, all the cells in photobioreactors can undergo photosysnthesis at their maximum rate. At cell densities over CCD, mutual shading will occur and some cells in the illumination chamber cannot grow photoautotrophically. When the cell concentration is higher than the CCD, specific oxygen production rates under flashing light were higher than those under continuous light. The CCD was found to be a useful engineering parameter for the application of flashing light, particularly in high-density algal cultures.

• 산업경영시스템학회지
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• 제21권46호
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• pp.229-240
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• 1998

In these days, we are facing the needs of the times that the product have to be converted from quantity to quality. Most companys now pay more attention to maximize efficiency of facilities with introducing high priced equipments, those equipments are too automated and electronic that partial failure or short time stop leads to the stop of producing process in the whole factory. Consequently, effective maintenance management of production equipment becomes a only solution against problems. This thesis develops a preventive maintenance software that grasp a failure sign through daily inspection with management item, Machine-Capability index and estimate a trend, determine the time of preventive maintenance. The software is useful to the plant operator in analyzing information easily and controlling preventive maintenance operations efficiently.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• 제5권2호
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• pp.71-99
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• 2001

The model and analytical method for solving the problem of coupled fluid flow in the reservoir/well system is presented. The 3-D drainage area is composed of three connected media: the tubing, the annuli as a super conducting collector, and the reservoir itself. To couple these three types of fluid flows a non-overlapping Dirichlet-Neumann domain decomposition method is developed. The method allows us to apply an analytical hybrid simulator for accurate evaluation of the impact of main geometrical and hydrodynamic parameters of the 3-D system on the pressure drop along the horizontal well and its production index.

• 한국환경과학회지
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• 제13권4호
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• pp.349-357
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• 2004

Emergy is a measure of the processes required to produce something expressed in units of the same energy form. Emergy based indices can provide insights into the thermodynamic efficiency of the process, the quality of its output, and the interaction between the process and its surrounding environment. However, in an industrial system, the inputs are mostly nonrenewable, renewable energy source is nearly zero, ultimate purpose is pursuit of profits in economic activity. In study, we present two indices based on emergy - EEE(Ecological Economic Efficiency) and ERI(Environmental Responsibility Index). The EEE is taken into account real value of product in market economy. The ERI is shown to be a function of the net yield of the economy, its ‘load’ on the environment and ecological economic efficiency. Manufacturing industry of Korea produced the 30% of total GDP in 2001. We applied these indices to manufacturing industry for environmental management and further sustainable industry. As a results, the highest ERI is 0.34 in recycling industries, the lowest ERI is 0.01 in coke, refined petroleum products which is dominated by ELR. The higher ERI, the more friendly to environment. The suggested indices help us understand relative contributions of various alternatives in company's production and consumption activity, and provide a tool of decision-making for the rearrangement of future industries. Furthermore, they contribute to environmental friendly operation and consumption.

• 농업과학연구
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• 제39권2호
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• pp.227-242
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• 2012

Accurate estimation of milk production cost is very important for dairy farmers in establishing strategies for business management (e.g. planning a program for milk production, deciding the size of business and investment, determining the milk price for sale). Since the estimated cost of milk production is used as an important index to determine the basal price of milk in Korea, there has been much interest and debate on the method used to estimate milk production cost among the stakeholder. This study was thus carried out to identify problems in the current methodology for estimating cost of milk production, and to find a better way to improve it. We propose several alternatives and better ways to improve the current method for estimating cost of milk production. Estimation of the income and cost per head should be based on the number of cattle converted to grown cows. Cost estimation per liter of milk should be made for both whole milk and 3.4% milk fat corrected milk. The value of purchased cows and raised replacement heifers should be the same as their market value. The productive life span of cows should be less 4 years, and the terminal or salvage value of cows needs to be 30 to 40% less than her initial value. When calculating depreciation of cows over the productive life span, however, the salvage value should be 0 or 1 Korean won. On calculating labor costs, the farm labor wage corresponding to the average wage of nonfarm industrial workers should be assumed. Beside of these, better estimation procedures for other items are also given. The proposed methods from this study should improve the accuracy of estimation of milk production cost and help to achieve consensus among the stakeholder.

• 지역연구
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• 제33권3호
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• pp.3-19
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• 2017

본 연구의 목적은 지역의 산업다양성이 지역의 경기변동에 어떤 영향을 주는지를 분석하는 데 있다. 지역의 경기변동은 고용시장과 생산활동의 측면에서 측정하였고 2005년 1월부터 2016년 2월을 분석기간으로 설정하였다. 우리나라의 주요 항만도시를 대상으로 선정하였고 지역의 특성을 통제하기 위하여 패널 벡터오차수정모형의 그룹평균 추정량과 통합그룹평균 추정량을 사용하였다. 산업의 구성이 다양한 지역에서는 단기적으로 실업률의 변동의 폭이 작았지만, 제조업 생산지수의 변동성은 장기적인 경우에만 낮게 나타났다.

• 벤처창업연구
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• 제11권3호
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• pp.63-76
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• 2016

본 연구는 최근 농촌경제 활성화를 위해 활발히 진행되고 있는 6차산업을 성공적으로 이끌기 위해 6차산업 기업가정신의 개념을 정립하고, 6차산업 기업가정신을 측정하기 위한 지표를 개발하는데 목적이 있다. 농촌 자원의 가치를 계발하고 생산, 가공, 유통 관광을 융합하는 특성을 지닌 6차산업 창업에서는 전통적 창업에서 강조되는 기업가정신 요소 이외에 더 다양한 기업가정신 요소들이 요구되었다. 본 연구에서는 문헌조사를 통해 전통적 기업가정신 구성요소와 6차산업 기업가정신 구성요소를 도출하고, 6차산업 전문가 인터뷰를 통해 현장에서 필요로 하는 기업가정신 핵심요소를 도출하였다. 도출된 결과를 기반으로 6차산업 기업가정신 지표를 설정하고 6차산업종사자들을 대상으로 설문조사를 진행하였다. 탐색적인 요인분석을 통하여 타당성 측정 및 지표를 평가하였으며, 탐색적 요인분석 결과 문헌조사와 인터뷰를 통해 설정된 요인들이 합리적으로 구성된 것으로 나타났다. 본 연구의 결과는 6차산업 활성화를 위한 교육이나 컨설팅, 귀농 귀촌 교육프로그램 기획 등에 활용될 수 있을 것이다. 또한 기존의 6차산업 진행 주체들의 기업가정신을 진단하고 개별적 필요에 맞는 맞춤형 역량개발을 진행하는데 도움을 줄 수 있을 것으로 기대한다.

• 한국콘텐츠학회논문지
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• 제13권4호
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• pp.350-360
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• 2013

뷰티산업은 인체를 건강하고 아름답게 관리하기 위해 서비스 등을 제공하는 산업으로 노동집약적 서비스산업으로 고용 창출 효과가 뛰어난 산업이다. 본 연구는 2009년 산업연관표를 활용하여 403개 산업 중 화장품 및 치약, 비누 및 세제, 이용 및 미용 등 3개 부문을 뷰티산업으로 분류하고, 뷰티산업의 경제적 파급효과를 분석하여 향후 정책 수립에 일조하는데 목적이 있다. 연구 결과 뷰티 산업의 생산유발계수는 1.810, 감응도 계수 0.534, 영향력계수0.965, 부가가치유발 계수 0.728, 소득유발계수 0.293, 생산세유발계수 0.124, 노동유발계수 0.039으로 나타났다. 그리고 뷰티산업의 최종수요 11,004 십억원을 국가경제에 투입할 경우 전 산업에서 유발되는 총생산유발액은 598,438 십억원으로 이 중 뷰티 산업은 11,029십억원으로 전체의 1.8%를 차지하며, 부가가치유발액은 4,947십억원( 2.3%), 세금유발액은 23,798.5십억원(3.5%),소득유발액은 91,187십억원(2.5%)으로 나타났다.

• 산업경영시스템학회지
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• 제43권1호
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• pp.26-33
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• 2020

The plastic waste problem is deepening all over the world. Plastic wastes have serious impacts on our lives as well as environ- mental pollution. The production and use of plastics increases every year, but once they are produced, they usually roam the earth for hundreds or thousands of years to pollute the environment. Although there is growing interest in plastic issues around the world and environmental regulations are being tightened, but no clear solution has yet been found. This study suggests Environmental degradation index (EDI). EDI can help raise consumers' attention to plastic wastes. In addition, EDI will contribute to reduce them in the future. As far as we know, this is the first study. We developed EDI for the confectionery packaging. This study defines four factors that may affect the environment of confectionery packaging: greenhouse gas emissions, energy consumption, methane emissions, and packaging space ratio. Then we quantify the value of each element and compute EDI as the sum of the four component values. In order to evaluate the feasibility of EDI proposed in this study, confectionery-packaging materials distributed in Korea were collected and analyzed. First, the types of confectionery are classified into pies, biscuits, and snacks and basic data was collected. Then the values of the four components were calculated using existing research data on the environment. We can use the proposed EDI to determine how much a product packing affects the environment.