• 제목/요약/키워드: limited observation

검색결과 439건 처리시간 0.098초

항공사진을 이용한 해안선 변화에 대한 시계열 분석 (Time Series Analysis by Coastline Change Using Aerial Photographs)

  • 김용석;홍순헌
    • 한국콘텐츠학회논문지
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    • 제7권3호
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    • pp.160-167
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    • 2007
  • 국가 경제의 급속한 성장에 따른 국토전반에 걸친 개발로 인해 국토 및 연안해역의 모습은 날로 변화하고 있다. 이러한 국토 및 연안해역의 변화를 효과적으로 탐지하고 적절한 이용계획을 수립하기 위해서는 해안선의 변화관측과 분석을 토대로 연안해역에 대한 모니터링체계의 확립이 시급한 실정이다. 최근 들어, 국토해안선제작 분야에서는 해안선의 경계구분에 대한 불명확한 정립과 관측 자료의 부족으로 정확한 해안선의 길이가 불명확한 상태이며, 기존의 자료에 대한 정확성과 신뢰성이 크게 떨어지고 있는 실정이다. 따라서 본 논문에서는 연구대상의 지역적 범위를 부산근교로 한정하였으며, 일정 간격의 항공사진을 이용하여 이 일대의 송정 해운대 광안리 송도 다대포 해안선에 대한 시계열적 변화를 분석하였다.

한국땅거미(Atypus coreanus Kim, 1985)의 시각기 미세구조 (Ultrastructure of the Eye in the Atypus coreanus Kim, 1985)

  • 권중균;고명규;정호삼;김주필
    • Applied Microscopy
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    • 제28권4호
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    • pp.477-490
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    • 1998
  • Most spiders have four pairs of simple eyes. A few families of the spider have their developed eyes to an extent visual cues make up a significant of information to response from the external stimuli. Most spiders respond to the external stimuli around them. Specially, they are very sensitive to vibrations from the air, the ground, their webs, or even the surface of water. The present study was undertaken to examine the evolutionary development and function of eye with the observation of visual ultrastructure of Atypus coreanus Kim, 1985 using the electron microscopy. They have weak mobility, limited territory and low developed eyes. Atypus coreanus was collected from Mt. Ungil, Namyangju-gun, Kyonggi province. The fine structure of these eyes was examined by electron microscopy, and prepard by teasing method for scanning electron microscopic observation. As a result, the eyes of Atypus coreanus was composed of cornea, lens, vitreous body, retina, and rhabdome.

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실을 통한 맥진, 소위 현사진맥(懸絲診脈)에 관하여 (On the Pulse Diagnosis via a Thread, Namely "Xuanxizhenmai")

  • 최성민;김기왕
    • 대한한의진단학회지
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    • 제16권1호
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    • pp.1-8
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    • 2012
  • Objectives Although the faith that pulse diagnosis via a thread, namely "Xuanxizhenmai", had been applied to some women in royal families, is widely spread in East Asian countries, but it is still controversial that whether this faith is based on historical facts or just originated from some folk tales. So we provided some reasonable clues to interpret that faith. Methods The digitalized Annals of Joseon Dynasty and Twenty Five Books of Chinese History were used for historical example search. Conventional internet search engines are widely used for investigation of other examples and related interpretations. Additionally, a pilot observation with nylon threads and optical vibration detection devices was performed to confirm it's feasibility. Results Although there are a few evidences supporting Xuanxizhenmai's existence in Qing dynasty, no evidence was found to show it's existence in authoritative annals of Korea and China. The pilot observation showed that in optimal environment, some intense arterial pulse could be propagated dozens of centimeter, but it was not applicable to clinical needs. Conclusions Pulse propagation via a thread was proved to be reproducible within limited extents, but pulse diagnosis via a thread, namely Xuanxizhenmai, seem to have never been used for proper clinical purpose.

방아쇠 무지 환자를 A1 활차 박리없이 근골격계에 기반하여 침과 전침으로 호전시킨 1례: 증례보고 (Dry Needling and Electro-Dry Needling Improved the Trigger Thumb in a Patient Based on Anatomical Structure Without A1 Pulley Release: A Case Report)

  • 윤명현
    • 척추신경추나의학회지
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    • 제17권2호
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    • pp.101-108
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    • 2022
  • Objectives Most of the acupuncture or dry needling points for trigger finger were limited around the metacarpophalangeal joint, A1 pulley, and flexor muscle tendon. Thus, this study aimed to report a case of a patient with trigger thumb which improved using dry needling on additional muscle points. Methods The author has investigated why additional points are needed including what its accompanying effects are. Dry needling and electro-dry needling have been conducted based on anatomical structure. Moreover, a follow-up observation was performed twice to evaluate if the effects of this treatment have been maintained. Treatment progress was evaluated using a numeric rating scale (NRS) and Quinnell's classification of trigger finger. Results After 28 days of treatment, NRS and Quinnell's trigger grade decreased significantly without adverse effects. The treatment effect has been maintained until follow-up observation. Conclusions Additional points are recommended for the radical treatment of trigger finger.

ARIMA 모델을 이용한 수막재배지역 지하수위 시계열 분석 및 미래추세 예측 (Time-series Analysis and Prediction of Future Trends of Groundwater Level in Water Curtain Cultivation Areas Using the ARIMA Model)

  • 백미경;김상민
    • 한국농공학회논문집
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    • 제65권2호
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    • pp.1-11
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    • 2023
  • This study analyzed the impact of greenhouse cultivation area and groundwater level changes due to the water curtain cultivation in the greenhouse complexes. The groundwater observation data in the Miryang study area were used and classified into greenhouse and field cultivation areas to compare the groundwater impact of water curtain cultivation in the greenhouse complex. We identified the characteristics of the groundwater time series data by the terrain of the study area and selected the optimal model through time series analysis. We analyzed the time series data for each terrain's two representative groundwater observation wells. The Seasonal ARIMA model was chosen as the optimal model for riverside well, and for plain and mountain well, the ARIMA model and Seasonal ARIMA model were selected as the optimal model. A suitable prediction model is not limited to one model due to a change in a groundwater level fluctuation pattern caused by a surrounding environment change but may change over time. Therefore, it is necessary to periodically check and revise the optimal model rather than continuously applying one selected ARIMA model. Groundwater forecasting results through time series analysis can be used for sustainable groundwater resource management.

초등 예비교사들이 개발한 과학관 활동지의 유형 및 요건, 필요성에 대한 관점 분석 (An Analysis of Types of Science Museum Worksheets developed by Elementary Pre-service Teachers and Their Perspectives on the Requirements and Necessity)

  • 김동렬
    • 한국초등과학교육학회지:초등과학교육
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    • 제35권2호
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    • pp.150-165
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    • 2016
  • This study aims to analyze types of science museum worksheets developed by elementary pre-service teachers and their perspectives on the requirements and necessity of science museum worksheets. As analysis subjects, this study selected 38 kinds of worksheets and reports developed by 114 elementary pre-service teachers who were in the third year of university of education. In this study, the science museum selected for elementary pre-service teachers to develop worksheets was a national science museum, composed of 'Nature and Discovery Museum', 'Science Technology and Industry Museum' and 'Children's Museum', which was located in a metropolitan city and opened in 2013. The results of this study can be summarized as follows; Firstly, as a result of analyzing the science museum worksheets developed by elementary pre-service teachers, this study found out that the experience type with hands-on and observation techniques applied was most, and as an approach method, direct manipulation, look-in observation and close observation were most. However, although these science museum worksheets were experience-oriented, many of them were survey-oriented ones that suggested too many questions through various exhibits. Secondly, as a result of analyzing requirements of science museum worksheets elementary pre-service teachers thought and described through the word tree of NVivo 10, this study extracted 10 kinds of main themes, out of which the requirement, 'A limited amount of activity should be required', showed the highest frequency. Thirdly, as a result of analyzing the necessity of science museum worksheets elementary pre-service teachers thought and described through the word tree of NVivo 10, this study extracted 9 kinds of main themes, out of which the opinion, 'It is required to help students check an exhibit which may be passed by', was most.

국민건강증진종합계획 2010의 기획모형과 실제 (The National Health Promotion Plan 2010: The Planning Model and Approaches)

  • 이규식;서미경;한달선
    • 보건교육건강증진학회지
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    • 제23권3호
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    • pp.149-167
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    • 2006
  • Objectives: This study examined the national health promotion plan 2010 in order to identify the agenda and issues to be considered for the improvement of the evaluation of the plan and future planning. In specific, the examination focused on both the planning model and practical aspects of the planning work. With regard to the planning model, attention was directed to the theoretical background, logical framework and assumptions involved in the design. Also, an observation was made in comparison with Japanese $\ulcorner$Health Japan 21$\lrcorner$ and American $\ulcorner$Healthy People 2010$\lrcorner$ which provided main reference to our original health plan 2010 and revised health plan 2010 respectively. From this observation it was found that all the plans of three countries, except our original health plan 2010, basically employed a model of educational and ecological approaches to health promotion planning. As predicted, the practical constraints on the health promotion policy and programs in Korea led to many difficulties in attaining the rationality and validity of the plan. The short period of time afforded for the planning work, the limited availability of relevant data and research findings, and the lack of experiences and competent personnel in health promotion planning were main factors impeding the planning work performance. The observation and analysis of the National Health Promotion Plan 2010 suggest two main implications for the future planning of health promotion. First, it will be both theoretically and practically appropriate to maintain the current planning model basically as it is. Second, there are many practical problems that may impede effective planning for health promotion, thus continuous efforts should be made to remove or alleviate such problems.

웹기반의 정보시각화를 위한 디지털 병풍 시스템 구현 (Implementation of Digital Folding Screen System for Information Visualization Based on Web)

  • 최정희;윤창옥;이동훈;윤태수
    • 한국멀티미디어학회논문지
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    • 제12권9호
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    • pp.1342-1350
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    • 2009
  • 현재까지 디지털 디스플레이 시스템은 단순영상의 시연용, 감상용, 전시용 시스템이 대부분이며 음악과 움직이는 풍경으로 인해 색다른 영상작품으로 재해석되어 보여 질 수 있으며 사용자의 감수성을 자극한다는 장점을 가지고 있지만 개발된 시스템의 활용범위가 작고, 쉽게 흥미를 잃을 수 있는 시기성을 가진다는 단점이 있어 지속적인 사용자의 인터랙션을 유도할 수 있는 시스템이 필요하다. 따라서 본 논문에서 제안한 RSS기반 디지털 병풍 시스템은 사용자의 단순 감상용으로 활용하던 기존의 8폭 병풍의 한계를 극복하여 사용자가 직접 참여하고 체험할 수 있는 환경을 제공하고 필요한 정보를 효과적으로 획득 할 수 있는 인터랙티브 미디어 시스템으로써 의 활용을 목적으로 구현되었다. 본 시스템은 블로그나 사이트를 직접 방문하지 않아도 새로 등록된 글을 수집해 읽을 수 있는 RSS의 주된 기능을 적용하여 실시간으로 필요한 정보를 사용자의 의도에 맞게 전달 할 수 있어 평상시에는 관상용으로 콘텐츠를 감상할 수 있고, 필요에 따라 광고나 전시용으로 활용이 가능하며, 공공장소의 정보전달시스템으로도 사용가능한 장점을 가지고 있다.

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여성의류 매장 공간의 구도에 나타난 공간구성의 주의집중 특성 - 백화점 매장의 순회동선을 대상으로 - (Features of Attention to Space Structure of Spacial Composition in Women's Shop - Targeting the Circulation Line of Department Store -)

  • 최계영;손광호
    • 한국실내디자인학회논문집
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    • 제26권2호
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    • pp.3-12
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    • 2017
  • This study has analyzed the features of attention to spacial composition seen in "Seeing ${\leftrightarrow}$ Seen" Correlation of continuous move in the space. The eye-tracking was employed for collecting the data of attention features to the space so that the correlation between visual perception and space could be estimated through the attention features to the difference between spacial composition and display. First, it was confirmed that the attention features varied according to the structure of shops and the exposure degree of selling space, which revealed that, while causing the customers' less attention to both sides of shops, the vanishing-point structure characteristically made their eyes focused on the central part. Second, their initial observation activities were found to be active at the height of their eyes. Third, 10 images were selected as objects for continuous experiment. There was a concern that the central part of each image would be paid intense attention to during the initial observation, but only two of those were found to be so. Fourth, there had been a study result of eye-tracking experiment that the attention had been concentrated on the central part of the image first seen. This study, however, revealed that such phenomenon is limited to the first image. Accordingly, it is necessary to draw up such method for ensuring reliability in order to use the data acquired from any eye-tracking experiment as exclusion of the initial attention time to the first image or of unemployment of the initial image-experiment to analysis.

한국 서해 천수만의 화학적 수질특성과 부영양화 (Chemical Characteristics and Eutrophication in Cheonsu Bay, West Coast of Korea)

  • 김동선;임동일;전수경;정회수
    • Ocean and Polar Research
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    • 제27권1호
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    • pp.45-58
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    • 2005
  • Temperature, salinity, dissolved oxygen, COD, dissolved inorganic nitrogen(DIN), dissolved inorganic phosphorus (DIP), and chlorophyll were measured in the surface and bottom waters of Cheonsu Bay in April, August, December 2003, and Hay 2004. DIN showed a large seasonal variation, with higher values in summer and lower in spring. The significant decrease in DIN concentration was observed from April to May, which may imply the occurrence of spring phytoplankton bloom sometime in these periods. In contrast, DIP did not show distinct seasonal variation, with relatively low values compared with other coastal regions. The low DIP concentration in Cheonsu Bay is ascribed to a limited phosphorus input around Cheonsu Bay. The Nf ratios of Cheonsu Bay much higher than the Redfield ratio(16) in all season indicate that phytoplankton growth is limited by phosphorus. Based on low chlorophyll concentrations and eutrophication index, Cheonsu Bay has not been in eutrophic condition during our observation periods. In the artificial lakes located around Cheonsu Bay, however, chlorophyll concentrations were very high, mostly over $10{\mu}g\;l^{-1}$, indicating that they are now in severe eutrophic condition.