아위버섯은 큰느타리(Pleurotus eryngii)의 변종(Pleurotus eryngii var. ferulae)으로서 향미가 풍부하고 항종양 및 혈당강화 작용, 위와 신장장애 및 기침을 멎게 하고 염증을 제거해 산부인과 종류의 병을 예방하는 효능이 있다고 알려져 있어 기능성 약용버섯으로 가치가 높다. 우리나라 버섯산업은 자동화, 대량생산시스템이 구축되면서 급속하게 성장하였으나 2010년을 정점으로 해서 소비량이 줄어들고 수출이 둔화되어 버섯 산업 전체가 지금 현재 정체상태에 있는 상황이다. 정체된 이 버섯산업을 극복하고 새로운 버섯산업의 성장 동력을 창출하기 위해서 기존의 5대 버섯 외에 새로운 품종을 개발해서 부가가치가 높고 수출 활성화를 도모할 수 있는 시장 맞춤형 버섯품종을 개발하고자 하여 아위느타리 신품종 ‘비산 1, 2호’, ‘에르고’, 아위 x백령느타리(종간교잡종) ‘백황’, ‘설원’ 등을 개발하였다. 신품종 보급을 위해 생산력 검정을 거쳐 농가실 증시험을 실시하였다. 본 실험에서는 신품종 ‘에르고’, ‘백황’, ‘설원’ 품종을 현장 실증을 하였다. 농가는 음성인근의 유진농원에서 3차에 걸쳐 실시하였다. 이 농가는 ‘미그린’이라는 상호로 큰느타리 배지를 80,000병/일을 생산하는 국내 최대규모의 큰느타리 배양업체로서 성장하였다. 아위느타리 신품종 농가실증 성적을 살펴보면 ‘에르고’는 생육일이 14일로 큰느타리 17일보다 3일이 빠르며, 종간교잡종 ‘설원’, ‘백황’ 은 균사 배양일(PDA 배양, 삼각플라스크, 액배양)에서는 36배지배양일이 33일로 36일인 큰느타리보다 빨리 자랐으며, 종균배양일(배지배양, 생육일)이 54일로 큰느타리 51일보다 더 걸려 큰느타리 85일, 종간교잡 종 87~89일로 큰느타리재배기간과 비슷하여 큰느타리 대체품종으로 재배가 가능하리라 본다.

Chloride penetration resistance test was conducted for verifying anti chloride of shotcrete toward change of slag amount in shotcrete. This research compared with each charge passed of material age 28 specimens, which are the results of the chloride penetration resistance test. The result show the shotcrete mixture with slag has great effect on the improvement of anti chloride.

We had designed and constructed floating type photovoltaic energy generation system, which is improved the structual and economical efficiency, compared with the system developed in the previous research. In this paper, the basic characteristics of wind force coefficient on a PV panel installed on the floating type PV energy generation system are investigated though the two-dimensional wind tunnel tests. Test variables included the angle of PV panel, direction of wind, number of rows of PV panel and attached or not attached frame. Based on the results obtained through the wind tunnel tests, it was found that the wind force coefficient can be used as a preliminary data in the design of the structure.

If the bracket triangle are commonly used, you may issues such as withdrawal caused by mounting unstable bracket phenomena and bending wire, the eccentricity of the loading plate than steel when you change the angle of the hole during construction will occur. SM brackets adjustment of the angle of 25~40 degrees is possible adjustment of the angle of the ground anchor bracket arched surface, the change in distance between the fixing position of the line and band pieces, due to changes in the installation angle, designers from steel Unlike with the intention, it is possible if the corresponding method can be constructed. Also, For construction of temporary structure used anchor, it will be reinforced with stiffener to prevent excessive deformation of the wale. In general, the welded steel stiffener is used. Construction of welded steel stiffener is costly and time-consuming and cause the problem that wale does not reuse. In order to solve these problems, various kinds of non-weled stiffeners are being developed.

For friction-type anchor general, pull-out resistance is exhibited by only fixing length frictional resistance. In order to ensure sufficient pull-out resistance excessive length and number of anchor is required. Thereby, including pressure-type and hybrid-type anchor is required. However, the standards for friction-type anchor are established in most of the national standards but specific design method for pressure-type and hybrid-type anchor is not been established. In this paper, we review behavioral characteristics of the hybrid-anchor body expanded in two stages using finite element analysis under the underground condition.

We plan to run the two-dimensional and three-dimensional finite element analysis to build a tunnel behavior DB along the fracture zone for making the development of behavior characterization method of construction of the destabilizing factors for each of the future.

Recently, water surface floating solar power system are few appeared some companies in the country. However, it is the reality of most structures using steel and the problem’s occurred in durability for error of design issues and corrosion. In order to solve these problems, research is being conducted for various materials but performance verification is insufficient. In this study, in order to predict the structural behavior of water surface floating solar power structure and to confirm the safety, it tried to understand the mechanical properties of PFRP, synthetic wood instead of steel.

Tunnels and underground construction projects directly or indirectly related to the risk for those who may be charged. In particular, various uncertainties related to soil and groundwater conditions, as well as increasing the cost of construction and environmental risks caused construction delays and construction as well as the collapse of the tunnel leads to a variety of risks. Thus, the possible risk of tunnel excavation during construction and throughout the project, including managing active risk management is very important. In this paper, in order to perform risk management, which may occur during construction was formalized type of tunnel collapse.

In this paper, the program finite element analysis We investigated the stress generated by the action of plate loading a load using to model the system exceeds the maximum load design ground anchor to apply 900kN a strength test evaluation it.