• 제목/요약/키워드: the Combination Data

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최적화 기법을 이용한 임하호유역 대표 CN값 추정 (Regionalization of CN values at Imha Watershed with SCE-UA)

  • 전지홍;김태동;최동혁
    • 한국농공학회논문집
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    • 제53권5호
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    • pp.9-16
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    • 2011
  • Curve Numbers (CN) for the combination of land use and hydrologic soil group were regionalized at Imha Watershed using Long-term Hydrologic Impact Assessment (L-THIA) coupled with SCE-UA. The L-THIA was calibrated during 1991-2000 and validated during 2001-2007 using monthly observed direct runoff data. The Nash-Sutcliffe (NS) coefficients for calibration and validation were 0.91 and 0.93, respectively, and showed high model efficiency. Based on the criteria of model calibration, both calibration and validation represented 'very good' fit with observe data. The spatial distribution of direct surface runoff by L-THIA represented runoff from Thiessen pologen at Subi and Sukbo rain gage station much higher than other area due to the combination of poor hydrologic condition (hydrologic soil C and D group) and locality heavy rainfall. As a results of hydrologic condition and treatment for land use type based on calibrated CNs, forest is recommended to be hydrologically modelled dived into deciduous, coniferous, and mixed forest due to the hydrological difference. The CNs for forest and upland showed the poor hydrologic condition. The steep slope of forest and alpine agricultural field make high runoff rate which is the poor hydrologic condition because CN method can not consider field slope. L-THIA linded with SCE-UA could generated a regionalized CNs for land use type with minimized time and effort, and maximized model's accuracy.

인공위성 관측자료와 궤적분석을 이용한 Eyjafjallajökull 화산재 감시와 예측 (Monitoring and Forecasting the Eyjafjallajökull Volcanic Ash using Combination of Satellite and Trajectory Analysis)

  • 이권호
    • 한국대기환경학회지
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    • 제30권2호
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    • pp.139-149
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    • 2014
  • A new technique, namely the combination of satellite and trajectory analysis (CSTA), for exploring the spatio-temporal distribution information of volcanic ash plume (VAP) from volcanic eruption. CSTA uses the satellite derived ash property data and a matching forward-trajectories, which can generate airmass history pattern for specific VAP. In detail, VAP properties such as ash mask, aerosol optical thickness at 11 ${\mu}m$ ($AOT_{11}$), ash layer height, and effective radius from the Moderate Resolution Imaging Spectro-radiometer (MODIS) satellite were retrieved, and used to estimate the possibility of the ash forecasting in local atmosphere near volcano. The use of CSTA for Iceland's Eyjafjallaj$\ddot{o}$kull volcano erupted in May 2010 reveals remarkable spatial coherence for some VAP source-transport pattern. The CSTA forecasted points of VAP are consistent with the area of MODIS retrieved VAP. The success rate of the 24 hour VAP forecast result was about 77.8% in this study. Finally, the use of CSTA could provide promising results for VAP monitoring and forecasting by satellite observation data and verification with long term measurement dataset.

크리에이티브 디렉터 교체에 따른 버버리 남성복 디자인 및 스타일 연구 (A Study on the Design and Style of Burberry Men's Wear through the Replacement of Creative Directors)

  • 송부영;김윤경;이경희
    • 패션비즈니스
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    • 제25권4호
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    • pp.14-35
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    • 2021
  • This study compares and analyzes the designs of Burberry creative directors, Christopher Bailey and Riccardo Tisci. For this purpose, 322 photographs (176 Christopher Bailey and 146 Riccardo Tisci) were collected and the data analysis criteria were classified into color, shape, material, decoration, item, and fashion style. With respect to the data analysis method, statistical analysis and content analysis were combined. First, the design characteristics of Christopher Bailey top and bottom combined bright tone, tone-in-tone color scheme, H-line, heterogeneous material combination, and smart casual appeared very frequently. Second, the design characteristics of Riccardo Tisci top and bottom combined were monotone, tone-on-tone color scheme, H-line, heterogeneous material combinations, and street culture. Third, the design differences between creative directors were significantly different in color, tone, color arrangement, pattern, material type, material combination, detail, top and bottom items, and fashion style. Burberry men's wear maintains Burberry's traditional design identity with achromatic colors, beige-based colors, and beige checks. Christopher Bailey's design direction is characterized by modernity in a casual mood that emphasizes practicality. The design direction of Riccardo Tisci is characterized by a wide gap between images in a semi-formal style that emphasizes Burberry's tradition and a free-spirited casual style.

온톨로지 기반의 서비스 연관관계를 이용한 서비스 통합에 관한 연구 (The Study of Service Integration using Ontology-based Service Association)

  • 황치곤;신효영;이상훈;정계동
    • 디지털융복합연구
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    • 제12권2호
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    • pp.327-333
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    • 2014
  • 현재 컴퓨팅 기술은 대부분 웹 기반으로 수행된다. 따라서 사용자는 필요한 자원이나 서비스들을 웹에 등록하고, 찾아 사용할 수 있다. 이러한 서비스들은 단독적으로 사용될 수 있고, 복합적으로 사용될 수 있다. 이것의 복합적 사용은 단위 서비스들의 순서와 연관성이 중요하며, 서비스의 관계를 정의한 온톨로지가 필요하다. 본 논문은 온톨로지를 기반으로 서비스의 연관관계를 정의하고, 이를 통해 서비스를 통합하여 사용할 수 있는 방안을 제안한다. 제안된 방안은 서비스 영역과 데이터 연관 영역으로 구성함으로써 효율적인 서비스 검색이 가능하다.

Combined Genotoxic Effects of Aflatoxin B1, Ochratoxin A and Zearalenone in Rat Bone Marrow and Blood Leukocytes

  • Tigran, Harutyunyan;Anna, Karapetyan;Galina, Hovhannisyan;Rouben, Aroutiounian
    • 환경생물
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    • 제31권3호
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    • pp.189-191
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    • 2013
  • Mycotoxins such as aflatoxin B1 (AFB1), ochratoxin A (OTA) and zearalenone (ZEA) are widespread contaminants of food and feedstuffs. It is very likely, that humans and animals are always exposed to mixtures of mycotoxins rather than to individual compounds. Therefore, risk assessments should consider mixture toxicity data. In the present study the combination of AFB1, OTA and ZEA was tested for genotoxicity in rat bone marrow and blood leukocytes after 15, 30 and 60 days treatment. The level of DNA damage was determined by the comet assay. The tail intensity and Olive tail moment in leukocytes and bone marrow cells were significantly higher than in controls. At the same time, the level of DNA damage in bone marrow cells was higher than in leukocytes. The data suggests that prolonged exposure to mycotoxins combination through food consumption can induce DNA damage contributing to the harmful effects in vivo.

후두내시경 영상에서의 라디오믹스에 의한 병변 분류 연구 (Research on the Lesion Classification by Radiomics in Laryngoscopy Image)

  • 박준하;김영재;우주현;김광기
    • 대한의용생체공학회:의공학회지
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    • 제43권5호
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    • pp.353-360
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    • 2022
  • Laryngeal disease harms quality of life, and laryngoscopy is critical in identifying causative lesions. This study extracts and analyzes using radiomics quantitative features from the lesion in laryngoscopy images and will fit and validate a classifier for finding meaningful features. Searching the region of interest for lesions not classified by the YOLOv5 model, features are extracted with radionics. Selected the extracted features are through a combination of three feature selectors, and three estimator models. Through the selected features, trained and verified two classification models, Random Forest and Gradient Boosting, and found meaningful features. The combination of SFS, LASSO, and RF shows the highest performance with an accuracy of 0.90 and AUROC 0.96. Model using features to select by SFM, or RIDGE was low lower performance than other things. Classification of larynx lesions through radiomics looks effective. But it should use various feature selection methods and minimize data loss as losing color data.

Computer Simulation을 이용한 의복의 착시효과와 이미지 연구 Collar와 Sleeve의 조합을 중심으로- (The Study on the Visual illusions and the Image of the Clothing by the Computer Simulation through the combination of the collars and the sleeves)

  • 최정;이경희
    • 한국의류학회지
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    • 제20권5호
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    • pp.915-929
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    • 1996
  • The purpose of this study is to investigate the visual illusions and image of the combinated collars and sleeves which are combinated by the computer simulation. The detail object of this study as follows; 1) to know the visual illusions of the clothing as the collar and sleeves are combinated 2) to constract the clothing image using sementic differential scales 3) to know the differet image of the clothing as the collars and sleeves are combinted 4) to know the interaction effect of the collars and sleeves of the clothing The detail method of this study is as follows; In the first experiment, there are two groups; the first 8 groups are the combination of the same collar and the different sleeves. The second 8 groups are the combination of the same sleeve and the different collars. The second experiment has done for the 32 clothings which are the combination of the 8 collars and 4 sleeves. For the 14 clothing the image has tested by 13 semantic differential bi- polar scale. The subjects were 50 female students majoring in clothing and textile. The data analyzed by Kendall cofficient of concodance, Factor analysis, Anova and scheffe's test. Briefly the image of the clothing is much influenced by the varing of the collar than that of the sleeve. Thus, we also can conclude that the recognition of the clothing are much more dependent on the collar than sleeve.

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3실 열펌프의 운전조합에 대한 난방성능 실험연구 (Experimental Study on Heating Performance by Operation Combination of Heat Pump with 3 Indoor-Units)

  • 김주형;김기영;권영철;박승철
    • 한국산학기술학회논문지
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    • 제14권9호
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    • pp.4197-4203
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    • 2013
  • 본 실험연구는 인버터 압축기를 적용한 실내기 3실을 가진 멀티형 열펌프 시스템의 난방운전 시 열펌프의 난방성능을 연구하였다. 멀티형 열펌프의 운전특성은 항온항습 기능을 가진 공기엔탈피방식의 멀티형 칼로리미터를 이용하여 측정되었다. 난방표준 및 난방저온 온도조건에서 실내기 운전조합에 따른 실험을 수행하여 난방성능 변화를 관찰하였다. 실내기 3실을 가진 열펌프의 실내기 운전조합에 따른 난방표준 및 난방저온 운전에서 난방능력, 난방 COP, P-h선도로부터, 3실을 가진 열펌프의 운전특성과 냉매 사이클의 거동을 조사하였다. 열펌프의 운전부하와 성능은 실내기 조합에 의한 부분부하에 의존하므로 열펌프의 난방능력과 사이클의 거동은 다르게 관찰되었다. 표준온도 시험조건 대비 저온 시험조건의 난방능력과 난방 COP는 감소하였다. 또한 실내기 조합에 대한 냉매사이클은 P-h 선도를 사용하여 분석되었다.

Accuracy of maximal expiratory flow-volume curve curvilinearity and fractional exhaled nitric oxide for detection of children with atopic asthma

  • Park, Sang Hoo;Im, Min Ji;Eom, Sang-Yong;Hahn, Youn-Soo
    • Clinical and Experimental Pediatrics
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    • 제60권9호
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    • pp.290-295
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    • 2017
  • Purpose: Airway pathology in children with atopic asthma can be reflected by the concave shape of the maximal expiratory flow-volume (MEFV) curve and high fractional exhaled nitric oxide (FeNO) values. We evaluated the capacity of the curvilinearity of the MEFV curve, FeNO, and their combination to distinguish subjects with atopic asthma from healthy individuals. Methods: FeNO and angle ${\beta}$, which characterizes the general configuration of the MEFV curve, were determined in 119 steroid-naïve individuals with atopic asthma aged 8 to 16 years, and in 92 age-matched healthy controls. Receiver operating characteristic (ROC) curve analyses were performed to determine the cutoff points of FeNO and angle ${\beta}$ that provided the best combination of sensitivity and specificity for asthma detection. Results: Asthmatic patients had a significantly smaller angle ${\beta}$ and higher FeNO compared with healthy controls (both, P<0.001). For asthma detection, the best cutoff values of angle ${\beta}$ and FeNO were observed at $189.3^{\circ}$ and 22 parts per billion, respectively. The area under the ROC curve for the combination of angle ${\beta}$ and FeNO improved to 0.91 (95% confidence interval [CI], 0.87-0.95) from 0.80 (95% CI, 0.75-0.86; P<0.001) for angle ${\beta}$ alone and 0.86 (95% CI, 0.82-0.91; P=0.002) for FeNO alone. In addition, the combination enhanced sensitivity with no significant decrease in specificity. Conclusion: These data suggest that the combined use of the curvilinearity of the MEFV curve and FeNO is a useful tool to differentiate between children with and without atopic asthma.

알츠하이머병 환자의 이상행동심리증상(BPSD)에 대한 한약과 양약의 병용 효과에 대한 연구: 체계적 문헌 고찰 (A Study on the Combination Effect of Herbal Medicine and Western Medicine on BPSD in Patients with Alzheimer's Disease: A Systematic Review)

  • 김만기;장석주;홍민호;김근우;구병수
    • 동의신경정신과학회지
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    • 제31권4호
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    • pp.301-314
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    • 2020
  • Objectives: The purpose of this study was to provide clinical evidence to support the use of herbal medicine combined with western medicine for BPSD. Methods: Studies were identified by searching CNKI, Pubmed, EMBASE, Cochrane Library, SCIENCEON, RISS, KMbase, KISS, OASIS. Literature searches of Chinese, English, and Korean databases were performed. Two authors independently extracted the data and evaluated the quality of each study. Results: The literature search identified 203 articles. Of these, 7 were selected for the analysis. The risk of bias in most studies was unclear. The most frequently used diagnostic tools were the NINCDS-ADRDA and DSM-IV. The most commonly used results indicator was NPI. In 6 of the 7 papers, combination treatment (herbal & Western medicine) was statistically significantly more effective than single treatment (Western medicine alone) for BPSD. No significant adverse events were reported. Conclusions: Herbal medicine in combination with Western medicine is more effective for treating BPSD than Western medicine alone. However, the quality of the studies used in this study was uncertain and the sample size was too small. Based on the findings of this study, more high-quality clinical trials are needed to confirm the efficacy of combination treatment.