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        검색결과 3,770

        3006.
        2014.10 서비스 종료(열람 제한)
        A cut slope mudstone formed due to construction work has usually been accompanied such as a joint and fracture zone so it especially is required to be significant care when cutting rock construction. Therefore, in this study was analyzed about engineering characteristics through case of a slope activity. In addition, two-dimensional finite element analysis with construction stages and actual measurement results were compared by each displacements. Through this, application between finite element analysis and actual field condition was investigated for stable slope design and construction.
        3007.
        2014.10 서비스 종료(열람 제한)
        Linear and nonlinear models are available to simulate the effect of mine blasting and the results change by each model. Linear model can properly simulate loss of impact wave in plastic failure region based on comparison of site vibration measurement and numerical analysis iteratively. But, loss of impact wave in plastic failure region should be calibrated into input parameter of blasting pressure. A method to convert loss of impact wave into design parameter is suggested in this study.
        3008.
        2014.10 서비스 종료(열람 제한)
        Linear and nonlinear models are available to simulate the effect of mine blasting. And the results are changed by selection of each model. Plaxis 8.0, FLAC 4.0 are used in this study for simulating blasting pressure. These programs offer linear model and nonlinear model. Linear model can properly simulate loss of impact wave in plastic failure region based on comparison of site vibration measurement and numerical analysis iteratively.
        3009.
        2014.10 서비스 종료(열람 제한)
        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.
        3010.
        2014.10 서비스 종료(열람 제한)
        This study evaluated compressive strength on the slurry for HPFRCC using blast- furnace slag with various blain as a basic study for developing alternative technology of the existing HPFRCC.
        3011.
        2014.10 서비스 종료(열람 제한)
        Improving traffic capacity and vehicle speed is no longer the main focus in transportation because of developments of technology and awareness of the citizens. Therefore, transportation's focus has been changing to solve social and environmental phenomena, such as noise and accident reduction and disaster prevention. One of new solutions that solves transportation problems is porous asphalt concrete pavement that can reduce highway noise and accident in wet condition. This research evaluated the economic characteristics of porous asphalt pavements by selecting associated safe and environmental variables. Also, The research conducted economic analysis between porous pavements and traditional pavements. The results show economic benefits of porous pavements.
        3012.
        2014.10 서비스 종료(열람 제한)
        SHM에서 변위는 구조물의 동적 특성을 파악하는 핵심정보다. 이를 구조물과 직접 접촉하여 자기장 변화를 전기적신호(LVDT), 직접적으로 측정하는 방안으로 LVDT, GPS, LDV Displacement is one of the most fundamental responses, containing useful information regarding dynamic behavior of a structure. Traditional displacement measurement devices such as LVDT have disadvantages in its high-cost and few options on installation place. For the sake of economic reason, vision-based displacement measurement systems using low-cost cameras have been developed, yet these approaches still have difficulties in finding appropriate camera positions; camera should be placed perpendicular to targets. This study presents a new vision-based displacement measurement system using the planar homography method that gives accurate displacement, allowing the camera to have an arbitrary angle toward target. The vision-based system is experimentally verified using a low-cost camera and a target with four circles.
        3013.
        2014.10 서비스 종료(열람 제한)
        This study proposes a FE model updating strategy based on data fusion of acceleration and angular velocity. The use of acceleration and angular velocity gives richer information than the sole use of acceleration, allowing the enhanced performance particularly in determining the boundary conditions. A numerical simulation is presented to demonstrate the proposed FE model updating approach using the data fusion.
        3014.
        2014.09 KCI 등재 서비스 종료(열람 제한)
        This study investigated ginseng growth and ginsenoside contents after control a reserved ginseng cultivation land using various green manure crops for stable ginseng cultivation. Followings are results obtained from this research. After cultivate the green manure crops, microbial flora in soil was diversified, organic matter and total-N content increased, but salt content decreased. The highest output obtained from the wheat cultivated area among various green manure corps. Growth of shoot and root of two years old ginseng increased significantly at the green manure crop cultivated area. Specially, the wheat cultivated area was the most effective in growth. Also, the rate of the leaf discoloration at the aerial part and the rusty root at the root was the least at the wheat cultivation area. Meanwhile, the ginsenoside content was the most at the wheat cultivation area. Thus, the reserved ginseng cultivation land could be managed by cultivating wheat for effective ginseng growth.
        3015.
        2014.09 KCI 등재 서비스 종료(열람 제한)
        ‘새단백’은 고단백 다수성 콩 신품종육성을 목표로 ‘보광콩’과 ‘수원193호’를 교배한 계통을 다시 단백질 고함유자원인 ‘MD87L’을 모본으로 하여 1999년에 교배하여 계통육종법으로 육성한 품종으로 2010년 12월 농작물직무육성신품종선정위원회에서 국가목록등재품종으로 선정됨과 동시에 ‘새단백’으로 명명하였다. ‘새단백’의 개화기는 ‘대원콩’보다 3일 늦으며, 성숙기는 10월 5일경으로 7일 빨라 등숙기간이 10일 정도 더 짧다. 경장은 64 cm로 ‘대원콩’보다 다소 작으며 도복에 강하고 불마름병에 저항성이며 바이러스와 종자병해에 강하였으나 뿌리썩음병에는 약한 편이었다. 조단백 함량은 ‘대원콩’보다 8.9% 높은 고단백 품종으로, ‘단백콩’보다 연차간 단백질 함량의 변이가 적고, 두부수율과 순두부응고력이 높으며 두부의 물성이 양호하여 두부 가공적성이 우수하다. ‘새단백’의 종실 100립중은 20.7 g으로 ‘대원콩’보다 약 4 g 가벼우나 ‘단백콩’보다 5.7 g 무거운 중립종이며, 수량성은 2.53 MT/ha로 표준품종인 ‘대원콩’에 비해 9% 감소하였으나 ‘단백콩’과는 비슷하였다.
        3016.
        2014.09 KCI 등재 서비스 종료(열람 제한)
        ‘조양1호’는 1999년 내병 다수성인 ‘풍산나물콩’을 모본으로, ‘수원187호’를 부본으로 하여 교배하여 계통육종법으로 육성한 품종이다. 유한신육형이며 꽃은 자색이고 잎은 피침형이며 모용은 회색이다. 종자의 종피와 배꼽은 황색이며 성숙한 꼬투리는 잘 터지지 않는다. 개화와 성숙이 빠르며 평균 성숙기는 9월 27일로 ‘풍산나물콩’보다 10일 빠르다. 경장은 51 cm로 다소 작으며 도복에 강하고, 불마름병과 뿌리썩음병, 성숙기 탈립에 강하다. 바이러스 접종시 괴저가 발생하나 포장에서는 강하며 종자병해는 ‘풍산나물콩’과 비슷하다. 종실 100립중은 11.6 g이며 발아율이 높고 경실종자가 거의 발생하지 않아 ‘풍산나물콩’에 비해 콩나물 수율이 11% 높다. 종실 수량성은 전국 4개소에서 3년간 시험한 결과, 3.03MT/ha로 ‘풍산나물콩’보다 3% 증수하였다.
        3017.
        2014.09 KCI 등재 서비스 종료(열람 제한)
        2013년 1월에서 8월 사이에 전국에서 유통 중인 립스틱, 립글로스, 립밤, 파운데이션, 아이라이너 등 색조화장품 121개 제품에서 납, 카드뮴, 비소, 크롬, 안티몬, 니켈, 구리 및 코발트의 농도 측정과 국산 및 수입산, 유형별, 색상별로 비교함으로써 이와 관련된 분야의 기초자료를 제공하고자 본 연구를 시행하였다. 분석된 전체 색조화장품의 중금속 평균 농도는 납 0.663μg/g, 카드뮴 0.010μg/g, 비소 0.056μg/g, 크롬 1.144μg/g, 안티몬 0.008μg/g, 니켈 0.405μg/g, 구리 0.319μg/g 및 코발트 0.108μg/g으로 측정되었다. 국산 및 수입산 색조화장품은 통계적으로 유의한 차이를 보였으며(p < 0.05), 수입산이 크롬을 제외한 7개 금속에서 국산보다 높게 검출되었다. 색조화장품의 유형에 따른 중금속 농도는 통계적으로 유의한 차이를 보였으며(p < 0.05), 립스틱에서 크롬 1.430μg/g, 납 0.616μg/g 그리고 니켈 0.385μg/g이 파운데이션에서 납 1.155μg/g, 크롬 1.023μg/g이 가장 높은 농도를 보였으며, 아이라이너에서는 크롬 1.424μg/g, 니켈 0.830μg/g이 가장 높은 농도를 나타내었다. 색조화장품의 색상별 중금속 농도는 통계적으로 유의한 차이를 보였으며(p < 0.05), 갈색의 화장품은 크롬, 니켈과 구리가 높은 평균 농도를 보였고, 아이보리색의 화장품은 납과 크롬이 핑크색의 화장품은 크롬과 납이 높은 평균 농도를 나타내었다.
        3018.
        2014.09 서비스 종료(열람 제한)
        Ankylosing spondylitis (AS) is an inflammatory joint disease affecting the axial skeleton, peripheral joints, entheses, and extra-articular site. Non-steroidal anti-inflammatory agents are the first line drugs for treatment of AS. Sulfasalazine is regarded as the second line drug and is usually used on AS patients with concomitant peripheral arthritis. Sulfasalazine has side effects, including liver toxicity, hematological abnormality, skin eruption, and other symptoms. However, eosinophilic pleural effusion is rare. Thus, we report on a patient with peripheral eosinophilia and eosinophilic pleural effusion after taking sulfasalazine for treatment of AS.
        3019.
        2014.09 KCI 등재 서비스 종료(열람 제한)
        This study aimed to identify orientations for the development of the community by establishing desirable aesthetical environments and reorganizing the residents' communal way of life through the implementation of village art projects. To investigate how the implementation of village art projects influence community and communication, the author analyzed changes in walls made by the implementation of actual projects in Anhyeon Village in Gochang, Dongpirang in Tongyeong, and Byeolbyeol Village in Yeongcheon. The community was analyzed from the view points of locality, communal ties, and communication. The results showed that Anhyeon Village in Gochang expressed its locality with chrysanthemum, poems and local figures. Similar walls were built across the village to strengthen ties among the residents, and portraits used as doorplates represented communication among them. Various paintings of seas, flowers, and poems were seen in Dongpirang in Tongyeong, which were thought to be representations of its locality and the friendliness of hometown in the less favoured area. Wall paintings played pivotal roles in this village to impart to the residents essentials that should be kept to eliminate inner walls in their minds and ensure open communications. In Byeolbyeol Village in Yeongcheon, locality was presented with common farm village landscapes in various materials, patterns and formativeness. Village-wide reinforcement contributed to strengthening ties in the community rather than forming boundaries against outside worlds. Cultural and artistic elements structured mental walls that made people not aware of the presence of physical walls.
        3020.
        2014.08 KCI 등재 SCOPUS 서비스 종료(열람 제한)
        항산화 및 항균활성을 가진 천연물을 활용해 합성보존료를 대체하고자 하는 연구가 활발한 가운데 국내 자생 식물 중 135종을 대상으로 DPPH radical 소거활성을 측정하였다. 이중 항산화 활성이 10%대로 낮게 나타난 식물 8종에 대해 항균효과를 조사하였다. 식물 추출물의 DPPH radical 소거활성은 0.41~94.84%로 다양하였으며, 가장 효과가 좋은 식물은 꽃향유와 우엉으로 각각 94.84, 80.55%를 나타내었다. 우엉은 잎의 경우 26.87, 뿌리 19.29%의 활성을 나타내 동일 식물이라도 추출부위에 따라 활성의 차이가 있을 것으로 보인다. 선이질풀과 비쭈기나무는 각각 그람양성균인 B. subtilis, 그람음성균인 E. coli 및 Candida속인 C. albicans에 대해 2.2~10.8 mm 수준의 항균활성을 나타내었다. 각 식물에 대한 다양한 추출법을 적용하여 기능성을 확인하고 이들 항산화성 물질에 대한 추가 연구가 진행되어야 할 것으로 사료된다.