• 한국유기농업학회지
• /
• 제27권3호
• /
• pp.271-288
• /
• 2019

It has continuously promoted to scale up the agricultural management body in order to cope with the market-opening pressure such as the UR negotiation, the DDA negotiation, and more conclusions of FTAs and to enhance the competitiveness of our agriculture. This study evaluated the factors associated with production organization participation centered on environmentally-friendly agriculture farmers in order to improve the production efficiency of environmentally-friendly agriculture in the aspect of production. In order to achieve this objective, this study evaluated the factors that contributed to participating in an organization using the bivariate probit model focusing on environmentally-friendly agriculture farmers in Chungnam. This study examined the validity and reliability of the study model through exploratory factor analysis. The results of factor analyses identified four factors: "distribution", "production", "organization operation", and "social capital". The results of the bivariate probit model showed that distribution significantly affected production activities and distribution, organization operation, agricultural income, and gender significantly influenced sale activities. Environmentally-friendly production organization had not been able to provide the productive support that was needed for local farmers to produce environmentally-friendly agricultural products in a region. Additionally, farming education did not provide the information needed by the farmers. Although producers had a network within a production organization, it was operated mainly for administrators. Therefore, participants felt somewhat lacking. This study identified the level of organization of producer organizations in Chungnam area, where environmentally-friendly agriculture is well activated. This study suggested implications for future production organization participation by evaluating factors affecting participation quantitatively.

• Asian Pacific Journal of Cancer Prevention
• /
• 제13권8호
• /
• pp.3601-3604
• /
• 2012

Purpose: Numerous studies have evaluated the association between XRCC1 Arg399Gln gene polymorphism and hepatocellular carcinoma risk in the Chinese Han population. However, the results have been inconsistent. We therefore here examined whether the XRCC1 Arg399Gln gene polymorphism confers hepatocellular carcinoma risk by conducting a meta-analysis. Methods: PubMed, Google scholar and China National Knowledge Infrastructure databases were searched for eligible articles in English and Chinese that were published before April 2012. Results: 6 studies involving 1,246 patients with hepatocellular carcinoma and 1,953 controls were included. The association between XRCC1 Arg399Gln gene polymorphism and hepatocellular carcinoma in the Chinese Han population was significant under GG vs AA (OR = 1.48, 95% CI = 1.13 to 1.94). Limiting the analysis to the studies with controls in the Hardy-Weinberg equilibrium, the results were persistent and robust. Conclusions: In the Chinese Han population, the XRCC1 Arg399Gln gene polymorphism is associated with an increased hepatocellular carcinoma risk.

• Journal of Dairy Science and Biotechnology
• /
• 제25권2호
• /
• pp.33-40
• /
• 2007

The Korean dairy industry has been developed continuously for the past seventy years both in quality and quantity; now the total amount of dairy products accounts for 13 percent of that of livestock production - a remarkable turnover. Korea now stands at the 13th economic power around the world and it is inevitable that we must pursue an open-door policy at a global level; the dairy industry should also strengthen its potentialities in the long term in order to compete with advanced dairy countries. It is predicted that the impact of DDA agreement and FTA negotiations on the domestic dairy industry will be great; so it is urgently needed that we should reconsider the current status of the dairy industry and comprehensive mesures for dairy industry development to improve its international competitiveness. Such measures comprise the three aspects: first, reforming the policy of dairy industry-related systems, second, improving the productivity and third, expanding the consumption of dairy products. In terms of the system reforming, the most important things are, above all, the planned production relevant to market needs, the milk supply and demand management, and the raw milk transaction method. Secondly, the appropriate scale of management is important for the enhancement of productivity together with the modernization of dairy facilities. Thirdly, step-up effort is needed to expand the milk consumption; especially, more milk should be provided to the students by improving the standing milk ration system in middle and senior high schools. The government should make more effort to support and develop new dairy products tuned to consumers' taste, accelerating the publicity of diverse and steady milk consumption together with related organizations.

• 무역상무연구
• /
• 제75권
• /
• pp.179-198
• /
• 2017

Recently, agricultural exports of Korea have steadily increased. But, no progress is being made at the WTO and DDA negotiations, the FTAs have played a leading role in the formulation of the international trade rules, and countries have been cleverly utilizing non-tariff barriers such as SPS and TBT, there is a growing need to respond to non-tariff barriers aggressively. On the other hand, since the FTA has the potential to activate the global value chain, there is a high need for exporting companies in the domestic agricultural sector to understand the structure of the global value chain in agriculture and actively utilize the global value chain. The non-tariff measures of agricultural commodities major trading partners in the field of domestic agricultural exports were mostly comprised of SPS measures and TBT measures. The non-tariff measures corresponding to inputs and production stages of value chain elements (seeds, seedlings) in the value chain were mainly reported in SPS measures. TBT measures are mainly carried out in selective packaging, storage, processing, distribution, and export sales. It is most important for agricultural export companies to know their position on the value chain and information on non-tariff measures of importing countries in order to actively utilize the global value chain. Since there are non-tariff barriers that are difficult to be solved at the individual enterprise level, active government support of the government is not only important but also actively promoting relevant information to farmers and agricultural exporters. In addition, potential export farmers and prospective export companies will be able to identify TBT and SPS and other non-tariff barriers well in advance, and respond to them in advance. Also, through networking with export related organizations and overseas buyers, It is very important that policy support from the perspective of global value chain is linked effectively.

• Journal of Biosystems Engineering
• /
• 제17권1호
• /
• pp.65-78
• /
• 1992

When using a computer vision system for a measurement, the geometrically distorted input image usually restricts the site and size of the measuring window. A geometrically distorted image caused by the image sensing and processing hardware degrades the accuracy of the visual measurement and prohibits the arbitrary selection of the measuring scope. Therefore, an image calibration is inevitable to improve the measuring accuracy. A calibration process is usually done via four steps such as measurement, modeling, parameter estimation, and compensation. In this paper, the efficient error calibration technique of a geometrically distorted input image was developed using a neural network. After calibrating a unit pixel, the distorted image was compensated by training CMLAN(Cerebellar Model Linear Associator Network) without modeling the behavior of any system element. The input/output training pairs for the network was obtained by processing the image of the devised sampled pattern. The generalization property of the network successfully compensates the distortion errors of the untrained arbitrary pixel points on the image space. The error convergence of the trained network with respect to the network control parameters were also presented. The compensated image through the network was then post processed using a simple DDA(Digital Differential Analyzer) to avoid the pixel disconnectivity. The compensation effect was verified using known sized geometric primitives. A way to extract directly a real scaled geometric quantity of the object from the 8-directional chain coding was also devised and coded. Since the developed calibration algorithm does not require any knowledge of modeling system elements and estimating parameters, it can be applied simply to any image processing system. Furthermore, it efficiently enhances the measurement accuracy and allows the arbitrary sizing and locating of the measuring window. The applied and developed algorithms were coded as a menu driven way using MS-C language Ver. 6.0, PC VISION PLUS library functions, and VGA graphic functions.

• 한국지능시스템학회논문지
• /
• 제19권1호
• /
• pp.90-95
• /
• 2009

본 논문은 선형차원감소(Linear Dimensionality Reduction)을 위해 널리 이용되고 있는 특징추출 알고리듬인 선형판별분석(Linear Discriminant Analysis)의 문제점을 해결할 수 있는 새로운 특징추출 알고리듬을 제안한다. 선형판별분석에 포함되는 평균-자료 간 거리 및 평균-평균 간의 거리에 기반한 분산행렬은 역행렬 연산, 계수의 제한 등으로 인하여 계산상의 문제와 추출되는 특징의 수가 제한되는 한계를 가지고 있다. 또한 자료의 집단이 단일 모드의 정규 분포로부터 얻어진 것으로 가정되며 그렇지 않은 경우에 대해서는 적절한 결과를 얻을 수 없다. 본 논문에서는 자료-자료 간의 거리에 기반하고 적절하게 가중치가 추가된 새로운 행렬을 정의하였으며. 이에 기반하여 특징을 추출하는 방법을 제안하였다. 그럼으로써 앞서 선형판별분석의 여러 문제를 해결하고자 시도하였다. 제안된 방법의 성능을 실험을 통해 확인하였다.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2013년도 추계학술대회
• /
• pp.177-180
• /
• 2013

한국 보건복지부에 등록된 장애인수는 2010년부터 250만명이상을 유지하여 2012년말에 약251만명이다. 한국에서 빨리 진행되고 있는 고령화에 따른 잠재 장애를 고려한다면, 장애인수는 더 증가할 것으로 예상된다. 한국에서 시행되고 있는 장애인 차별금지법을 준수하려면, 장애인이 불편함 없이 시설물을 사용할 수 있는 방법과 장애인 편의시설에 대한 활용 연구가 필요하다. 본 논문에서는 최근 급격하게 사용량이 늘고 있는 스마트폰을 이용하여 장애인이 인식할 수 있도록 위치와 음성인식과 QR 코드가 인식되는 스마트폰을 개발한다. 개발된 장애인 스마트폰에서, 장애인 편의시설로 구축된 DataBase를 연결하고, 장애인 택시의 네비게이션과 연결하여 장애인 Data Base를 활용 할 수 있도록 한다. 본 논문을 통하여 한국의 장애인차별법을 준수하고, 장애인 복지확대를 통해 국가복지 향상에 기여할 것이다.

• 수산경영론집
• /
• 제36권3호
• /
• pp.65-88
• /
• 2005

The fisheries industry has been changed drastically during the so - called Golden Growth Era of Korea. Recently, WTO/DDA agenda drove industries out of their safe refuges toward infinite competitions in the world. This paper aims at finding out distinguished features in the structural changes of fisheries since 70s. Furthermore, policy implications are investigated in order for the fisheries to survive in the outdoors. The paper consists of the following sections. First, we consider why and for what the structural change of fisheries in historical perspective should be investigated. And we introduce how we can approach to the goal in various aspects in the second section. In the third section, we examine the historical change of Korean fisheries in respect of national economy, resource allocation mechanism, industrial structure, and fisheries society. In the fourth section, we extract the development steps in fisheries from the periodic characteristics, using various methods of the above approaches. And we deduce the next step for Korean fisheries in the future. Finally, we conclude that there needs some turning point of fisheries policies in Korea, striving to foster the fisheries industry in the future. As results of empirical analysis in this paper, we find that fisheries industry in Korea has experienced some momentous changes during 30 years, using I/O data of B.O.K. The weight of fisheries sector in the whole economy of Korea increased during early 70s, initially leading the national economy to export - oriented engine for growth. But fisheries sector has shrunk rapidly since late 70s. Almost resources in Korea were allocated to expanding manufacturing industries. Further, fisheries industry has encountered perfect international competitions since the late 90s. This paper draws that fisheries industry in Korea will jump across to next step of qualitative growth in the future. Therefore, we recommend that the policies should be focused on enhancing the industrial competitiveness, switching quantitative growth to qualitative advance in fisheries.

• 농업생명과학연구
• /
• 제43권2호
• /
• pp.55-63
• /
• 2009

본 논문에서는 선행연구와 달리 냉장육 돼지고기와 냉동육 돼지고기에 대한 서로 다른 관세철폐 일정을 명시적으로 고려하여 한?미 FTA가 국내 돼지고기 시장에 미치는 영향을 분석하였다. 국산 돼지고기의 균형가격은 최소 2.69%에서 최대 15.96%까지 감소하고, 물량은 최소 1.35%에서 최대 5.6%까지 감소할 수 있는 것으로 시뮬레이션 된다. 또한 부위별로 보면 관세철폐 이행 이후 돼지고기의 도매가격은 kg당 최소 100원에서 최대 1300원까지 하락할 수 있는 것으로 분석된다. 이러한 분석결과는 한 EU의 협상결과나 DDA 협상 타결로 인한 다른 나라 돼지고기의 수입증가와 같은 돼지고기 시장의 다른 측면과 돼지고기가 타 육류와 가지는 대체관계 등은 고려하지 않은 것이기 때문에, 본 논문의 분석결과는 다른 모든 조건이 일정하다는 가정 하에 미국산 돼지고기의 수입가격이 하락한 상황이 가져오는 효과만을 분석했다는 전제하에 이해되어야 한다.

• Geomechanics and Engineering
• /
• 제11권1호
• /
• pp.1-39
• /
• 2016

The finite element method (FEM), discrete element method (DEM), and Discontinuous deformation analysis (DDA) are among the standard numerical techniques applied in computational geo-mechanics. However, in some cases there no possibility for modelling by traditional finite analytical techniques or other mesh-based techniques. The solution presented in the current study as a completely Lagrangian and mesh-free technique is smoothed particle hydrodynamics (SPH). This method was basically applied for simulation of fluid flow by dividing the fluid into several particles. However, several researchers attempted to simulate soil-water interaction, landslides, and failure of soil by SPH method. In fact, this method is able to deal with behavior and interaction of different states of materials (liquid and solid) and multiphase soil models and their large deformations. Soil indicates different behaviors when interacting with water, structure, instrumentations, or different layers. Thus, study into these interactions using the mesh based grids has been facilitated by mesh-less SPH technique in this work. It has been revealed that the fast development, computational sophistication, and emerge of mesh-less particle modeling techniques offer solutions for problems which are not modeled by the traditional mesh-based techniques. Also it has been found that the smoothed particle hydrodynamic provides advanced techniques for simulation of soil materials as compared to the current traditional numerical methods. Besides, findings indicate that the advantages of applying this method are its high power, simplicity of concept, relative simplicity in combination of modern physics, and particularly its potential in study of large deformations and failures.