• 제목/요약/키워드: Yuseong-2

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KOMPSAT-2 영상을 이용한 토지피복정보 자동 추출 (Automatic Extraction of Land Cover information By Using KOMPSAT-2 Imagery)

  • 이현직;유지호;유영걸
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2010년 춘계학술발표회 논문집
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    • pp.277-280
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    • 2010
  • There is a need to convert the old low- or medium-resolution satellite image-based thematic mapping to the high-resolution satellite image-based mapping of GSD 1m grade or lower. There is also a need to generate middle- or large-scale thematic maps of 1:5,000 or lower. In this study, the DEM and orthoimage is generated with the KOMPSAT-2 stereo image of Yuseong-gu, Daejeon Metropolitan City. By utilizing the orthoimage, automatic extraction experiments of land cover information are generated for buildings, roads and urban areas, raw land(agricultural land), mountains and forests, hydrosphere, grassland, and shadow. The experiment results show that it is possible to classify, in detail, for natural features such as the hydrosphere, mountains and forests, grassland, shadow, and raw land. While artificial features such as roads, buildings, and urban areas can be easily classified with automatic extraction, there are difficulties on detailed classifications along the boundaries. Further research should be performed on the automation methods using the conventional thematic maps and all sorts of geo-spatial information and mapping techniques in order to classify thematic information in detail.

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대전지역 길고양이의 톡소포자충(Toxoplasma gondii) 감염 실태 조사 (Investigation of Toxoplasma gondii infection on stray cats in Daejeon)

  • 성선혜;유상식;임여정;정년기;문병천
    • 한국동물위생학회지
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    • 제35권1호
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    • pp.19-24
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    • 2012
  • This study was performed to evaluate the prevalence rate of Toxoplasma gondii on 217 stray cats in Daejeon. The positive infection rate of T. gondii was 15.7% in enzyme-linked immunosorbent assay (ELISA), 12.4% in latex agglutination test (LAT), 14.7% in indirect immunofluorescent antibody test (IFA) and 0.5% in polymerase chain reaction (PCR) respectively. In districts, Yuseong-gu was shown the highest seropositive rate of T. gondii as 31.8% in ELISA, 22.7% in LAT and 31.8% in IFA. In gender, the seropositive rate of female cats was slightly higher than that of male cats as 17.2% in ELISA, 15.2% in LAT, 15.2% in IFA and 1.0% in PCR. Cats captured in National science museum, detached house and apartment was shown relatively high prevalence rate of T. gondii.

Rotavirus성 위장염 (Rotavirus Gastroenteritis)

  • 강정옥;박승함;김기홍;이근수
    • 대한미생물학회지
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    • 제17권1호
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    • pp.15-19
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    • 1982
  • Fifty two infants and young children hospitalized in the pediatric department of Hanyang University Hospital with acute gastroenteritis from February through April 1982 were examined for the evidence of infection with rotavirus by electron microscopic technique and enzyme-linked immunosorbent assay(ELISA). Of 52 patients examined, rotaviruses were detected in stools of 11 patients(21%) by EM technique and 16 patients(31%) by ELISA. But there was no significant statistical difference between the two methods(Z=1.2<2). During the study period, rotaviruses were detected in stools of 6(38%) of 16 patients in February, 10(30%) of 33 patients in March, and none of 3 patients in April. The age of the 16 patients who shed the rotaviruses in their stools ranged from 3 months to 6 years, and 12 patients(75%) were between 6 and 24 months. Our study suggests that the rotaviral gastroenteritis of infants and young children in Korea might have similar frequency, seasonal variation, and age distribution with other countries in temperate zone.

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대전지역 아파트 거주자의 주거의식에 관한 조사연구 (Survey on Apartment Dwellers' Perception of Housing Environment in Daejeon City)

  • 최병숙;강인호;박정아;장혜선;정미현
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2008년도 춘계학술발표대회 논문집
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    • pp.339-344
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    • 2008
  • The purpose of this study was to find out the residents' perceptive opinions of apartment housing environment and to contribute to develop a apartment unit plan in Daejeon City. This research was performed by a questionnaire survey method, 464 data was collected from apartment residents lived in about $85m^2$ unit with 3 rooms and the apartments was limited to the complexes within 3 years at Yuseong-gu and Seo-gu. By analyzing those data, findings are as follows: 1) Residents thought living room, kitchen and bathroom were importment space in a unit plan. They needed a storage function in an entrance and a intermediate room, and Anbang(materbed room) so did. L-DK plan type was very preferred. 2) Sub-kitchen was needed for a refrigerator of Kinch, the location of it was realted to a main kitchen and a uitility. the third room was needed for library, home office and storage space. 3) The enlargment remodeling of balcony was showed livingroom balcony or personal bedrooms at the time of occupancy. They needed the balcony near a kitchen or an utility to equip a storage facility. And residents were preferred to their taste rather than a choice of interior concept package services.

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주호소가 호흡곤란인 환자에 대한 119구급대원의 병원전 응급처치 현황 (Prehospital care of patients with dyspnea by 119 emergency medical technician)

  • 윤성우;최보람;이경열
    • 한국응급구조학회지
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    • 제17권1호
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    • pp.41-50
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    • 2013
  • Purpose : This study intended to improve the quality of prehospital emergency care for patients with dyspnea by figuring out the current situations and problems based on run-sheets of 119 emergency medical technicians (EMTs). Methods : A total of 336 dyspnea patients were transferred to G university hospital by 119 ambulances from January 1, 2011 to December 31, 2011. Results : The data were analyzed by SPSS 19.0. Patients over 60 years old accounted for 57.2% and 48.4% had the history of heart disease. Among the heart disease patients, 31.7% complained of dyspnea and chest pain. The vital sign measurement performance by 119 EMTs increased compared to previous study. The number of prehospital treatment by 119 EMTs significantly increased depending on the mental state of the patients. Conclusion : 119 EMTs should remind the heart disease and other past history of the patients when they perform the dyspnea patient care.

Alternaria brassicifolii sp. nov. Isolated from Brassica rapa subsp. pekinensis in Korea

  • Deng, Jian Xin;Li, Mei Jia;Paul, Narayan Chandra;Oo, May Moe;Lee, Hyang Burm;Oh, Sang-Keun;Yu, Seung Hun
    • Mycobiology
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    • 제46권2호
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    • pp.172-176
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    • 2018
  • A new species belonging to the genus Alternaria was isolated from the necrotic leaf spots of Brassica rapa subsp. pekinensis in Yuseong district, Daejeon, Korea. It is an occasional isolate, not an etiological agent, which is morphologically similar to A. broccoli-italicae, but differs in conidial size and conidiophore shape. Phylogenetic analysis using the sequence datasets of the internal transcribed spacer (ITS) region of the rDNA, glyceraldehyde-3-phosphate dehydrogenase (gpd), and plasma membrane ATPase genes showed that it is distantly related to A. broccoli-italicae and closely related to Alternaria species in the section Pseudoalternaria, which belonged to a clade basal to the section Infectoriae. Morphologically, the species is unique because it produces solitary conidia or conidial chains (two units), unlike the four members in the section Pseudoalternaria that produce conidia as short branched chains. It exhibits weak pathogenicity in the host plant. This report includes the description and illustration of A. brassicifolii as a new species.

시추공 물리탐사를 통한 지반물성과 암상과의 상관성 분석 (Relationship between lithology and rock physical property using borehole prospecting)

  • 송무영;김환석;박종오
    • 지질공학
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    • 제12권2호
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    • pp.127-135
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    • 2002
  • 시추공영상자료와 시추조사에서의 RQD자료 및 완전파형음파검층에 의해 측정된 탄성파속도를 이용하여 각 암상에서의 탄성파속도와 RQD와의 상관관계를 검토하였다. 탄성파속도와 절리틈과의 상관관계는 유성일대의 화강암과 팔당일대의 호상 편마암에서 높은 상관성을 보인 반면, 사북일대 퇴적암에서 상관성이 없는 것으로 나타났다. 사북지역의 퇴적암에서는 상관성이 없고, 특히 누적 절리틈이 0∼20mm구간에서 탄성파속도 분포의 분산이 크게 나타나며, 이는 탄질 세일의 파쇄구간이 넓게 분포하여 절리틈 크기의 측정에 무리가 있었을 것으로 추측된다.

드론영상을 이용한 물체탐지알고리즘 기반 도로균열탐지 (Road Crack Detection based on Object Detection Algorithm using Unmanned Aerial Vehicle Image)

  • 김정민;현세권;채정환;도명식
    • 한국ITS학회 논문지
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    • 제18권6호
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    • pp.155-163
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    • 2019
  • 본 연구에서는 대전광역시 주요 간선도로인 유성대로를 대상으로 드론을 통해 취득한 노면 영상데이터를 기반으로 물체탐지알고리즘(Object Detection algorithm) 가운데 Tiny-YOLO-V2와 Faster-RCNN을 활용하여 아스팔트 도로노면의 균열을 인식, 균열유형을 구분하고 실험 결과차이를 비교하였다. 분석결과, Faster-RCNN의 mAP는 71%이고 Tiny-YOLO-V2의 mAP는 33%로 측정되었으며, 이는 1stage Detection인 YOLO계열 알고리즘보다 2Stage Detection인 Faster-RCNN 계열의 알고리즘이 도로노면의 균열을 확인하고 분리하는데 더 좋은 성능을 보인다는 것을 확인하였다. 향후, 드론과 인공지능형 균열검지시스템을 이용한 도로자산관리체계(Infrastructure Asset Management) 구축방안 마련을 통해 효율적이고 경제적인 도로 유지관리 의사결정 지원 시스템 구축 및 운영 환경을 조성할 수 있을 것이라 판단된다.

Reliability study of the Pectoralis Minor Muscle Thickness Measurement using Rehabilitative Ultrasound Imaging

  • Lim, Ji Young;Lee, Se-Yeong;Jung, Seung-Hwa;Park, Dae-Sung
    • 대한물리의학회지
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    • 제16권2호
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    • pp.45-52
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    • 2021
  • PURPOSE: This study examined the imaging procedure of pectoralis minor muscle thickness and assessed the intra- and inter-rater reliability of the muscle thickness measured by two raters using rehabilitative ultrasound imaging (RUSI) in healthy individuals. METHODS: Fifteen participants (aged 21 - 28, seven females, and eight males) were involved in the study. The primary rater palpated the coracoid process and the fourth rib, defined as the width of the index finger lateral to the sternum to avoid breast tissues, and lined the two landmarks. The second examiner checked 1 / 3 (1st point) and 1 / 2 (2nd point) of the line length as measurement points. The two raters obtained right side muscle images of the participants at a standardized sitting position using RUSI with a 7.5 MHz linear transducer at 40mm depth. For intra-rater reliability, the principal rater took three images per point and tried to take one more with an interval. For the inter-rater reliability, the other rater performed the same tasks as the principal rater on the same day. The reliability was analyzed using the intra-class correlation coefficient (ICC), the standard error of the measurement (SEM), and Bland and Altman plots. RESULTS: The reliability at all points was excellent for the same rater (ICC3,1 = .973 - .978, SEM = .042 - .046), and between raters (ICC2,1 = .939 - .959, SEM = .059 - .097). CONCLUSION: These findings show that the RUSI could be reliable for examining the pectoralis minor muscle thickness in healthy individuals at all measurement sites.

결측강우보완방법에 따른 분포형 유출모형의 적용성 검증 (The Verification of Application of Distributed Runoff Model According to Estimation Methods for the Missing Rainfall Data)

  • 최용준;김연수;이기하;김주철
    • 한국환경과학회지
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    • 제19권12호
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    • pp.1375-1384
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    • 2010
  • The purpose of this research is to understand the change of runoff characteristics by estimated spatial rainfall. Therefore, this paper largely composed of two parts. First, we compared the simulated result according to estimation method, ID(Inverse Distance Method, ID2(Inverse Square Distance Method), and Kr(General Covariance Kriging Method), after letting miss rainfall data to the observed data. Second, we reviewed the runoff characteristics of the distributed runoff model according to the estimated spatial rainfall. On the basis of Yuseong water level station, we select the target basin as Gabchun watershed. We assumed 1 point or 2 point of the 6 rainfall gauge stations in watershed were missed. We applied the spatial rainfall distributed by Kr to Hy-GIS GRM, distributed runoff model. When 1 point rainfall data is missed, Kr is superior to others in point rainfall estimation and runoff estimation of Hy-GIS GRM. However, in case rainfall data of 2 points is missed, all of three methods did not give suitable result for them. In conclusion, Kr showed better applicability than other estimated methods if rainfall's data less than 2 points is missed.