본 연구는 느타리버섯 자실체가 생육온도에 따른 수량성과 자실체의 형태적 특성을 확인하기 위하여 느타리버섯 품종 중에서 저온, 중온, 고온성 품종을 구분하여 12개 품종에 대하여 실험을 실시하였다. 수량성에 있어서는 품종의 온도 반응적 특성에 맞는 온도에서 수량성이 가장 높게 나타났다. 형태적 특성에 있어서는 갓크기는 온도처리에 따른 일정한 경향을 보이지 않았으며, 갓두께에 있어서는 저온 처리인 10℃에서 품종에 관계없이 가장 두껍게 나타났다. 대길이는 삼복 외 4품종은 온도가 증가하면서 같이 증가하였으며, 그 외의 품종은 품종에 따라 약간의 차이를 보였다. 대굵기에 있어서는 대체적으로 온도 증가에 따라 가늘어지는 경향이나 품종간 약간의 차이가 나타났다. 버섯수확소요일수에서는 10℃처리에서 가장 기간이 길었으며, 품종별 가장 짧은 소요일수를 보인 것은 품종의 온도 특성에 따라 다르게 나타났다. 품종에 따라서 온도에 반응하여 기형적 형태를 보이는 경우가 있었는데 이런 특이적 현상은 수한1호의 경우 저온 처리인 10℃에서 버섯이 발이후 어린 버섯 갓 표면에 백색 인피가 형성하며 성장 후에는 갓의 일부분에만 발생하거나 없어지는 현상이 있었으며, 춘추2호에서는 고온인 20℃ 이상에서는 대가 뒤틀리며, 대기 휘어지는 특이적 현상이 발생하였다.

The operation of vending machine system presents a decision-making problem which consists of determining the product allocation to vending-machine storage compartments, replenishment intervals of vending machines, and vehicle routes, all of which have cri

목적 : 본 연구는 일상생활에서 범하기 쉬운 사소한 실수들의 빈도를 통해 인지적 손상정도를 평가하는 인지적 실패 질문지Cognitive Failure Questionnaire(CFQ)의 국내 적용을 위한 번역연구 및 번역된 설문지의 신뢰도를 알아보고자 하였다. 연구방법 : 본 번역 과정은 총 5단계로 진행되었다. 첫 번째 과정에서 작업치료사 1명이 인지적 실패 질문지 25개 항목을 한국어로 번역하였고, 두 번째 과정으로 재활전문가 으로 구성된 번역 검증 위원회에서 한글번역의 적합성 검증을 실시하여 부적절한 항목을 수정하였다. 세 번째 과정은 9명의 인지기능 장애가 있는 환자들을 대상으로 설문항목에 대한 이해도를 10점 척도로 조사하였고, 이해도가 낮은 항목들은 다시 번역검증위원회를 통해 수정하였다. 수정된 질문지는 번역 전문가를 통해 역번역하였고, 마지막으로 영어를 모국어로 하는 외국인 2명이 원문과 역번역본의 문장구조 및 의미전달의 유사성을 검증하였다. 최종 번역된 질문지는 15명의 인지기능 장애가 있는 환자군에게 1-2주일 간격으로 실시하였고, 검사·재검사 신뢰도는 급간 내 상관계수로, 내적 일치도는 크롬바 알파(Cronbach α)로 분석하였다. 결과 : 한글 번역 적합성 검증 결과 총 11개 항목을 수정하였으며, 수정된 질문지에 대한 이해도 평가 결과 대부분 의 항목에서 높은 이해도를 보였다(평균 9.0-10.0). 또한 역번역 검증 과정을 통하여 총 3개 항목을 수정하였다. 최종 번역본에 대한 검사·재검사 신뢰도는 ICC .807, 내적 일치도는 Cronbach a= .878로 나타났다. 결론 : 본 연구는 체계적인 번역 과정을 통하여 국내 적용을 위한 설문내용의 적합성과 이해도를 높였다. 또한 신뢰도 검증을 통하여 추후 인지기능 장애가 있는 뇌손상 환자군에서 인지적 실패 질문지가 다양하게 사용될 수 있는 기반을 마련하였다.

This study was is to establish the floristic composition of vascular plants of Sinan-gun, Korea. The field works performed 26 times from April to November in 2010. Vascular plants observed were 768 taxa containing 118 families, 428 genera, 674 species, 1 subspecies, 81 varieties and 12 formae. Among the investigated plants, 13 taxa (2.4%) were Korean endemic. The rare plants designated by the Korea Forestry Service in this region were 27 taxa. The floristically and geographically important plants were 112 taxa: grade I, II, III, IV, and V species were 68, 7, 26, 3, and 8 taxa, respectively. In the 321 naturalized plants in Korea, 78 taxa (24.3%) were found in this region and it is relevant to 10.2% of the total taxa number of this region. As a endangered species designated by the Ministry of Environment of Korea, we report Millettia japonica (grade II) in this region.

A study was conducted to investigate the efficiency of recipient for Embryo Transfer (ET) in Holstein Heifers. A total of 193 heifers (Age 14-20 months and body weight, 250-400 Kg) was assigned in 2 groups (natural ovulation cycle group and Hormone-induced ovulation synchronization group) based on the development of corpus luteum (CL) and uterus where 28.49% (55/193) heifers were in normal estrous. The ET technique was applied in both of the groups to transfer the embryo in the recipients and evaluated their efficiency. In vivo frozen embryos were used for ET at the blastocyst stage. Results showed that according to recipient preparation method the conception rates were 22.72% (10/44) and 40.26% (60/149) in hormone-induced ovulation synchronization group and natural ovulation cycle group, respectively. The pregnancy rate of heifers was significantly higher (p<0.05) during the first time ET compared to repeat ET; however, recipient showed no significant difference in CL development in both side. The conception rate were 31.03% (9/29), 37.75% (57/151) and 15.38% (2/13) at day 6, 7 and 8, respectively after the CL development of the heifers. The conception rate was significantly higher (p<0.05) in the right side compared to left side of the CL development. In addition, during ET anesthesia group and non anesthesia group conception rate of the recipient were 27.63% (21/76) and 41.88% (49/117), respectively.

This study was carried out to classify the regional folk plants in northern area of Gyeonggi-do. According to the survey results from 238 survey sheets of 223 residents at 65 places of 11 counties and cities from March to October, 2010, the folk plants in north of Gyeonggi-do consisted of a total 238 taxa; 84 families, 194 genera, 207 species, 3 subspecies, 26 varieties, and 2 form. The use by its usage was: 146 taxa; edible, 93 taxa; medicinal, 7 taxa; dye, 3 taxa; aroma, 4 taxa; spice, 4 taxa; ornamental, 12 taxa; fiber, 6 taxa; oil, 51 taxa; others, respectively, so the edible use is the highest. The most useful part was the leaf, followed by root and fruit. The consistency comparison between the scientific name and the local name was the lowest in 40's.

The purpose of this study is a classification of farm typology and an analysis of characteristic e-commerce type of farm enterprises. The classification of sample farm enterprises thus results in six distinctively agribusiness type. The six identified types can be characteristic as follows: production type, processing type and distribution type, e-commerce type, export-agricultural type, amenity-tourism type. This article attempted to come up with workable strategies to solve these problems affecting e-commerce type farm enterprises. The main results this paper are as follows: 1) to make organization of e-commerce type farm enterprises to accomplish business goals 2) to find out solution for urgent problems and subjects of farm management 3) to practice profitable business model for e-commerce type. E-commerce type farm enterprises needs are not only technology transference but also farm management.

Recently, various efforts to make more speedy and precision machine tool to improve productivity and also various efforts to solve environmental problem are going on, so that dry cutting in manufacturing industry, which needs environmental conscious design and development of manufacturing technique, is becoming a very important assignment to solve. Because dry cutting does not use cutting fluid, we need other methods that can be used instead of cutting fluid, which does cooling, lubricating, chip washing, and anti-corrosion. Especially, because turning is a continuous work, the consideration of tool life and surface roughness due to continuous heat and poor lubrication is important. The purposes of this paper are the consideration of how well the compressed air can work instead of cutting fluid, and also the development of the method to select the optimum machining condition by the minimum numbers of experiments through the Taguchi method.

재하속도에 따른 용접강관의 모멘트-곡률 거동특성에 관한 해석적 연구를 수행하였다. 3차원 열역학해석을 통하여 용접이음부의 잔류응력을 산출하였다. 그리고 동적소성모델이 적용된 탄소성 유한요소해석 프로그램을 이용하여 잔류응력을 고려한 용접강관(Welded pipe)의 동적해석을 수행하였다. 그리고 용접이음부가 없는 일반강관(Seamless pipe)에 대한 동적거동과의 비교를 통하여 해석을 수행하여 용접강관의 해석력과 해석결과는 용접강관의 모멘트가 일반강관의 모멘트에 비해 낮은 응답을 보였으나 재하속도가 증가함에 따라 모멘트 응답의 차이는 점차 감소하는 경향을 보였다.

The flow rate analysis for sanitary fixtures has been studied to determine the water supply piping system and size. The study has been carried out to analyze for a various water supply pressure and piping size theoretically. Also, the study has been carried out to analyze for a various water supply piping system experimentally. The water supply pressure is varied from 0.01MPa to 0.07MPa, and the piping size is varied from 6mm to 15mm. The water supply piping systems are one-to-one, all-loop-type, and bathroom-loop-type water supply piping system. The results indicate that the piping size is able to supply water fully in case of smaller than 15mm if the water supply pressure keep an necessary minimum pressure. And the gap of flow rate is very little for the various water supply piping systems

The paper concerns numerical study of fully developed laminar flow of a Newtonian water and non-Newtonian fluids, 0.2% aqueous of sodium carboxymethyl cellulose(CMC) solution in eccentric annuli with combined bulk axial flow and inner cylinder rotation. Pressure losses and skin friction coefficients have been measured when the inner cylinder rotates at the speed of 0～200 rpm. A numerical analysis considered mainly the effects of annular eccentricity and inner cylinder rotation. The present analysis has demonstrated the importance of the drill pipe rotation and eccentricity. In eccentricity of 0.7 of a Newtonian water, the flow field is recirculation dominated and unexpected behavior is observed. it generates a strong rotation directed layer, that two opposing effects act to create two local peaks of the axial velocity. The influences of rotation, radius ratio and working fluid on the annular flow field are investigated.

This paper addresses the analysis of the travel distance and order picking time of the vehicle in a aisle when items are picked by the batch in a warehouse system. Batching is to combine several orders in a single tour of the storage/retrieval machine. An

As operating temperatures of engines or turbines continually increase for higher efficiency, significant amounts of researches have been focused on finding new materials, which would be alternatives to conventional yttria-stabilized zirconia (YSZ) for thermal barrier coatings (TBCs). In this study, phase evolution and thermo-physical properties of pyrochlore systems are investigated for TBC applications. systems are comprised by selecting as A-site ions and as B-site ions in pyrochlore structures. For the developed phases in compositions, thermo-physical properties such as thermal conductivity, thermal expansion coefficient are examined. The potential of these compositions for TBC application is also discussed.

In this study, a novel-processing route for fabricating microcellular zirconia ceramics has been developed. The proposed strategy for making the microcellula zirconia ceramics involved hollow microspheres as pore former. Compared to conventional dense microspheres pore former, well-defined pore structured zirconia ceramics were successfully fabricated. Effects of hollow microsphere content and sintering temperature on microstructure, porosity, pore distribution, and strength were investigated in the processing of microcellular zirconia ceramics.

Alloy 617, Ni-22Cr-12Co-9Mo base oxide dispersion strengthened alloy was fabricated by using mechanical alloying, hot isostatic pressing and hot rolling. Uniaxial tensile tests were performed at room temperature and at . Compared with the conventional Alloy 617, ODS alloy showed much higher yield strength and tensile strength, but lower elongation. Fracture surfaces of the tensile tested specimens were investigated in order to find out the mechanism of fracture mode at each test temperature. Grain adjustment during tensile deformation was analyzed by electron backscattered diffraction mapping, inverse pole figures and TEM observation.

국내 지침에 의하면 성능기준에 적합한 노측용 방호울타리만이 도로 현장에 설치될 수 있다. 그러나 공용중인 고속도로 노측의 상당 구간에는 지침 개정 이전에 설치된 성능이 미흡한 기존 구형 가드레일이 설치되어 있어서 고속도로 운전자의 안전을 위협하고 있다. 구형 가드레일은 전국의 고속도로에 약 2,777km가 설치되어 있으며 일률적으로 동시에 모든 구간의 가드레일을 교체하기란 예산상 어려움이 많아 최소한의 보강을 통해 국내 지침에 만족스럽게 보강개선된 가드레일을 개발하는 것이 본 연구의 목적이다. 본 연구에서는 LS-DYNA 3D를 이용한 충돌시뮬레이션과 실물차량 충돌시험을 통해 철재 노측용 가드레일 보강방안(SB1, 3, 5등급)을 개발하였고 개발된 가드레일 보강개선방안은 차량의 충돌 및 이탈사고의 심각성을 감소시켜 도로의 안전도를 개선, 향상시킬뿐만 아니라 많은 예산절감을 기대할 수 있다.