The Purpose of this paper is to suggest sustainable strategies of the project for developing large-scale environment-friendly agricultural districts (LSEAD). This study used assessment 3 indicators, efficiency, impact and sustainability of environmentfriendly agricultural certification area and farmers, management situations of croplivestock circulation center, educations for environment-friendly farming, changes of farmer’s income and so on. This project has contributed to develop environment-friendly agriculture and model of LSEAD. And for sustainable development of LSEAD, it is necessary to renovate crop-livestock circulation centers, promote organic farming of resource-circulation type, converse to non-pesticide or organic farming of low pesticide one, do active marketing activities, establish a governance system of business projects and so forth.
This study revealed that seismic retrofit technology which has to conduct seismic retrofit work after removing facing walls from a reinforced concrete structured building constructed with masonry walls and facing walls, bears disadvantages of additional costs both for removal of facing walls and for brick masonry and possibility to incur the secondary damage from collapse of facing walls. Therefore, this study aims to develop a seismic retrofit technique and examines its performance which can yield sufficient seismic retrofit effect without additional retrofit of facing walls by forming a pile-bent reinforced concrete walls with facing walls after removing masonry walls.
FRP has higher design tensile strength than steel bar and outstanding characteristics such as light-weight, non-corrosion, and lower conductivity. And, current researchers evaluated flexural performances of flexural members using FRP and suggested the development length and splice length by using bonding failure test. This Researchers has the main purpose to examine the quality of bonding failure in the lap spliced FRP and deformed bar. Variables in this test with total 208 specimens planned are re-bar location, embedment length, covering depth, re-bar diameter. And, this study describes the result of our review on the bonding strength of the lap-spliced FRP and the deformed bar located at the bottom.
The Purpose of this paper is to analysis on farmer’s awareness and satisfaction level of the project for developing large-scale environment-friendly agricultural districts (LSEAD). To analysis farmer’s awareness and satisfaction level, a series of farm household surveys were conducted on farmers, take part in the project for developing LSEAD. The sample size of the survey is 80 respectively. As a survey result, awareness and practical use of facilities & equipment shows a little different outcome. Satisfaction level of the project for developing LSEAD is summarized as follows. Influence on disposal of livestock excretions and farmer’s consciousness change appears 4.47 and spreading environment-friendly agriculture 4.44, distribution of environment-friendly agricultural product 4.33, and demand of environment-friendly agricultural materials 4.04. In order to sustainable development of LSEAD, a governance system should be established.
The Purpose of this paper is to establish development strategies for sustainability of environment-Friendly agriculture based on farm awareness analysis. To analysis farm management, a series of farm household surveys were conducted on farmers residing in Embong-Myun. The sample size of the survey is 108 respectively. As a survey result, satisfaction level about market stability and understanding of upper organization is high, on the contrary, awareness of related organization is low in a relative sense. Most of farmers reveal their intention to sustain environment- Friendly agriculture but future agriculturalist and an ageing society that one face as well. In order to establish development strategies for sustainability of environment- Friendly agriculture, an infrastructure should be consistently expanded. On the other hand, self-supporting ability of farmer’s organization and education system attempt to expand for sustainability.
The objectives of this study were to establish of resource cycling agricultural system focused on farmer’s organization. Case is selected as the farming corporation for the regional agriculture considering the amount of sowing by-products and livestock by-products generated. As a result, generation of fertilizer ingredient depend on feces and urine of Korean native cattle is estimated nitrogen 7.7 ton, phosphoric acid 2.9 ton, and potassium 4.9 ton. On the other hand, generation of fertilizer ingredient demand in cultivated acreage is estimated nitrogen 42.4 ton, phosphoric acid 14.3 ton, am! potassium 17.0 ton. Therefore, optimum livestock numbers is estimated 1,867 cattle and it means 1,468 cattle can be raise additionally. In order to complete the resource cycling agricultural system, it should be establish nutrient management system at all of organization level and achieve improvements in regional resource supply. Both economic value of organic fertilizer and the resource cycling system linked market system is considered to develop resource cycling level.
This study focused on analysis of the satisfaction level of specialty shops for environment-friendly agricultural products (EFAP). To analyze the satisfaction level of EFAP, a series of household surveys were conducted. Questionnaire was prepared on the basis of the SERVQUAL model and the structural equation modeling was made on the basis of the contents surveyed. The main results of this study are summarized as follows. Firstly, tangibles structured with store clearance, neat uniform, information and others is the factor of service quality satisfaction. Secondly, reliability structured with service practice, problem solving, and service in accurate time is the factor of service quality satisfaction. Thirdly, assurance structured with the reliability of employees, sufficient knowledge of employees, courteous and good manner is the factor of service quality satisfaction. Fourthly, responsiveness structured with prompt service, voluntary help, customer response service and the like is the factor of service quality satisfaction. Fifthly, the sympathy structured in interest for each customer, provision of service in time convenient to use, encountering the customers with genuine feeling are the factors of service quality satisfaction. And sixthly, the service satisfaction factors would influence on the consumer behavior factors.
The objectives of this study were to find out determinant attributes of selecting Environment-Friendly Agricultural Products (EFAP) and to analyze the degree of consumer’s satisfaction by using factor analysis. To identify determinant attributes of EFAP, a series of household surveys were conducted on housewives residing in Seoul. The sample size of the survey is 247 respectively. The main results of this study are summarized as follows. Firstly, the degree of consumer’s satisfaction and loyalty is higher than before. Secondly, the consumers recognized that the most important attributes in selecting EFAP is a ‘taste’. Thirdly, ‘price policy’, ‘diversity of purchasing items’ and ‘package design’ will continuously speed up the development of EFAP in order to improve the consumer"s satisfaction.
This study was conducted to assess water movement in paddy-upland rotation soil scheduled for ginseng cultivation through the measurement of infiltration and permeability of soil water. Soil sample was divided with four soil layers. The first soil layer (to 30cm from top soil) was loamy sand, the second and the third soil layers (30~70 ㎝) were sand, and the fourth (〈 120 ㎝) was sandy loam. The soil below 130 ㎝ of fourth soil layer was submerged under water. The shear strength, which represents the resisting power of soil against external force, was 3.1 kPa in the first soil layer. This corresponded to 1/8 of those of another soil layer and this value could result in soil erosion by small amount of rainfall. The rates of infiltration and permeability depending on soil layers were 39.86 cm hr-1 in top soil, 2.34 cm hr-1 in 30~70 ㎝ soil layer, 5.23 cm hr-1 and 0.18 cm hr-1 in 70~120 ㎝ soil layer, with drain tile, and without drain tile, respectively. We consider that ground water pooled in paddy soil and artificial formation of soil layer could interrupt water canal within soil and affect negatively on water movement. Therefore, we suggest that to drain at 5 m intervals be preferable when it makes soil dressing or soil accumulation to cultivate ginseng in paddy-upland rotation soil to reduce failure risk of ginseng cultivation.
The objectives of this study were to analysis the nutrient cycles of agricultural by-products. The region, in which agricultural by-products are circulated for use within the agroecosystem for minimizing the input of artificial nutrients as well as generation of wastes, and where ecologically industrial diversity is formed, was defined as the regional agriculture focused on eco-industrial approach. Plan in stages for promoting ahead with the regional agriculture focused on eco-industrial approach is as follows: First of all, "The Consultation Body for Circulating & Using By-products" should be formed. Secondly, usage of agricultural by-products is identified to select the facilities of recycling and its location including the type and amount. Thirdly, the facilities for recycling of resources and infrastructure are installed. Finally, the facilities for recycling and resource circulation system within the area are efficiently managed.
디지털 방사선 검출기의 주된 연구동향은 영상의 해상도 향상, 대면적화, 동영상 구현 등… 이라 할 수 있다. 이런 연구는 방사선 변환과정에 따라 크게 직접변환 방식과 간접 변환 방식으로 나눌 수 있으며 각각 고유한 장단점을 내포 하고 있다. 간접변환 방식의 경우 형광체의 사용으로 인한 Light scattering 문제로 해상력의 저하 그리고 직접방식의 경우는 낮은 system 안정성과 동영상 구현의 어려움 등이 대표적이라 할 수 있다. 이런 문제를 해결하기 위한 연구로 써 액정을 이용한 엑스선 검출기 연구가 진행되었으나 그 구조의 특성상 균일한 액정의 주입이 어려워 제작에 있어 많 은 어려움이 있다. 따라서 본 논문에서는 기존의 문제점을 해결할 수 있는 구조를 제안하고 이를 Simulation 통해 제안 된 구조의 가능성을 검토해 보았다.
눈동자개, Pseudobagrus koreanus의 성분화 과정을 밝히기 위해 부화 직후부터 250일령까지 생식소의 분화 및 발달을 조사하였다. 원시생식세포는 부화 후 1일(전장: 6.63~6.95 ㎜)에 나타났으며, 부화 후 5일(7.50~9.36 ㎜)에 생식융기를 형성하는 원시생식소 구조를 나타내었다. 부화 후 25일(11.58~13.21 ㎜)에서는 생식소 후단부 한쪽 끝에서 신장된 체세포 돌기가 생식소와 융합되어 작은 난소강이 형성되었다. 부화 후 30일(12.19~13.72 ㎜)에는 생식소 하단부에 정소관 원기가 출현하여 정소의 분화가 시작되었다. 부화 후 50일째 자어(16.28~17.06 ㎜)의 난소내에서는 주변인기 난모세포로 채워지기 시작하였으며, 정소내에서는 정원세포(spermatogonia, SG)의 활발한 증식을 관찰할 수 있었다. 부화 후 250일째 자어(35.49~51.12 ㎜)에서는 난소의 크기가 더욱 커지고 난모세포들로 가득 채워져 있었고, 정원세포의 수가 증가하기 시작하였다. 이상의 결과 눈동자개의 성분화 양상은 자웅이체형 중 분화형이었다.
고등어를 습식법으로 인공 수정한 난을 대상으로 난발생 및 자치어 발육과정을 관찰하였다. 수정란의 형태는 구형의 분리부성란으로 유구는 1개를 가지고 있었으며, 난경은 0.94~1.02 ㎜(평균 0.95±0.03 ㎜)였다. 부화에 소요된 시간은 수온 20±0.5℃에서 51시간이 소요되었다. 부화 직후 자어의 전장은 2.52~3.0 ㎜(평균 2.75±0.04 ㎜)로 난황을 달고 있었고, 입과 항문은 아직 열려 있지 않았으며, 근절은 28~31개였고, 눈에는 흑색소포 소포가 착색되어 있었다. 부화 후 2일째의 전기 자어는 3.12~3.63 ㎜(평균 3.39±0.05 ㎜)로 난황이 완전히 흡수되었다. 부화 18일째 후기 자어는 전장이 8.45~12.32 ㎜(평균 10.85±4.36 ㎜)로 꼬리말단이 굽어지기 시작하면서 가슴지느러미, 등지느러미, 꼬리지느러미의 줄기가 형성되었다. 부화 25일째에는 44.12~58.72 ㎜(평균 55.95±6.74 ㎜) 외부 형태가 성어와 같은 치어기에 도달하였다.
벼 재배 시 녹비작물 투입은 화학비료의 대체뿐만 아니라 토양 물리・화학성을 변화시킨다. 특히 두과 녹비는 토양의 내수성입단 형성 등으로 토양 물 이동 특성에 많은 영향을 미친다. 본 시험은 두과 녹비작물인 헤어리베치를 2007년부터 2008년 5월까지 재배하였다. 투입 시기는 5월 14일이었고 투입량은 2,100 kg/10a를 투입하여6월2일에 중생종인 풍미벼를 기계이앙하였다.물 소요량은7월8일부터 벼 수확기까지 시험구에 계량기를 설치하여 물소요량을 산정하였다. 조사기간의 강수량은 7월 541 mm, 8월 217 mm, 9월은 10일간 강수량이 51 mm 였다. 물관리 처리는 관행 물관리와 7일에 1회 간단관개를 처리하였다. 관행 물관리는 녹비작물 헤어리베치를 투입한 구에서 많이 소모 되었고 주1회 물관리는 관행물관리가 헤어리베치 투입구보다 많았다. 따라서 녹비작물 헤어리베치 투입 시 주1회 물관리를 할 경우 물절약이 가능할 것으로 생각되었다.
본 연구에서는 중등학교 현장에서 요구되는 전문상담교사의 실제적 역할과 그 기능을 규명하고자 하였다. 이를 위하여 학생 323명, 학부모 323명, 교사 307, 전체 953명을 대상으로 자료를 수집한 후 전문상담교사의 역할에 대한 요인분석을 실시하였다. 그 결과, 개별 및 집단 상담활동, 교사 및 부모를 위한 자문활동, 학교상담 관련 행정업무, 학생이해 및 지도를 위한 정보수집 및 제공활동, 전반적인 학교 생활지도 및 상담체제에 대한 지원, 학교 및 학급 생활지도를 위한 교육과정 구성과 실행 등 여섯 요인이 산출되었고, 각 집단별 요구구조가 안정적인 것으로 나타났다. 이를 토대로 학생, 학부모, 교사들이 요구하는 전문상담교사의 공통적인 세부 역할 및 기능에는 개별 및 집단 상담활동 중 바람직한 진로선택 및 진로결정을 위한 상담이 가장 높게 나타났다. 한편, 세 집단간 차이를 비교한 결과, 학생은 개별 및 집단상담 활동 중 바람직한 진로선택 및 진로결정을 위한 상담, 학부모는 학교상담관련 행정업무 중 학교상담실의 운영, 교사는 개별 및 집단상담 활동 중 집단 괴롭힘(왕따, 학교폭력)의 가해 및 피해 학생을 위한 상담에 대한 요구가 가장 높은 것으로 나타났다.
Competitive power of pelagic fishery in Korea has been weakened by the domestic and international problems such as wage increase and exclusive economic zone. To make it worse, fishing fleet spends more than 80% of fishing time on searching fishing grounds. Real-time information on oceanographic data, temperature in particular, are likely to contribute to raise efficiency of fishing. However, available data obtained by satellite remote sensing, fixed buoy and drifting buoy, limited to sea surface or fixed positions. ARGO (Array for Real-time Geostrophic Oceanography), an international program, has delivered vertical profiles of temperature and salinity in the upper 2000 m of the world ocean every 10 days using freely moving floats. We have developed real-time oceanographic information system for pelagic fishery based on the Argo data which has the contents of vertical profile, horizontal distribution and vertical section of temperature around fishing grounds and searched data can be download unrestrictedly. Comparison of skipjack catch with sea surface temperature and depth of 20℃ derived from Argo data in the West Equatorial Pacific revealed that Argo data are able to help fishing fleet to find fishing grounds and to increase catch.
Producing Korean organic beef cattle costs a great deal because it needs breeding conditions like the organic feed, an uncontaminated breeding farm and so on. So the price of Korean organic beef (KOB) is more expensive than that of Korean general beef (KGB). To overcome this adverse price condition, a case production organization in Asan will choose direct marketing routes for consumers or the shop under direct management of the organization, or franchise shops. As a result, these marketing routes are expected to narrow the price gap between KOB and KGB. And consumers will accept the price of KOB if quality of KOB is very high level, for example the first grade++.