• Title/Summary/Keyword: limited observation

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

  • Kim, Yong-Suk;Hong, Soon-Heon
    • The Journal of the Korea Contents Association
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    • v.7 no.3
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    • pp.160-167
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    • 2007
  • Due to the drastic growth of national economy and the development of overall territory, the shapes of national land and coastal areas are changing from day to day. To detect such changes in lands and coasts efficiently, as well as to establish an appropriate usage plan, it is necessary to secure a monitoring system for coastal areas based on the observation and analysis of the change in coastlines. Currently, looking at the field of producing national coastlines, the lengths of coastlines are inaccurate due to the vague definition of dividing coastline boundaries and insufficient observation data. The level of accuracy and reliability of previous data are also in the very low. This paper used aerial photographs with certain intervals to monitor the change in coastal areas of Songjeong, Haeundae, Kwanganri, Songdo and Dadaepo. The local area subjected for this research was limited to areas near Busan.

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

  • Kwon, Jung-Kyun;Ko, Myung-Kyoo;Chung, Ho-Sam;Kim, Joo-Pil
    • Applied Microscopy
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    • v.28 no.4
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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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On the Pulse Diagnosis via a Thread, Namely "Xuanxizhenmai" (실을 통한 맥진, 소위 현사진맥(懸絲診脈)에 관하여)

  • Choi, Sung-Min;Kim, Ki-Wang
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.16 no.1
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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.

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

  • Myung Hyun Yoon
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.17 no.2
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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.

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

  • Baek, Mi Kyung;Kim, Sang Min
    • Journal of The Korean Society of Agricultural Engineers
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    • v.65 no.2
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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.

Radiosonde Observation Using General Purpose Radio Receiving Instruments (범용 라디오 수신장비를 활용한 라디오존데 관측)

  • Hyungyu Kang;Joowan Kim;Minseong Park;Sanghyun An
    • Atmosphere
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    • v.34 no.3
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    • pp.325-336
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    • 2024
  • Radiosonde is an important in-situ profiling instrument that measures atmospheric temperature, moisture, and wind structure from the surface to the middle stratosphere. The operational radiosonde measurements are carried out more than twice (at 0000 UTC and 1200 UTC) daily at approximately 1,300 World Meteorological Organization (WMO) stations and play a pivotal role in daily weather forecasts. It also contributes to the monitoring of atmospheric structure by providing the key physical information like temperature and pressure, forming the backbone of atmospheric (re)analyses and numerical weather forecasts. Additionally, high-resolution radiosonde profiles are used for calibration and evaluation of satellite products. Despite these advantages, radiosonde measurements are mostly limited to operational uses due to the high initial cost of ground instrument setup required for data transmission and reception. This study outlines a cost-effective (roughly one-tenth of the operational cost) method for establishing the ground station and the necessary radiosonde measurement procedures, offering guidance for individual researchers or university-level instructors.

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

  • Kim, Dong-Ryeul
    • Journal of Korean Elementary Science Education
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    • v.35 no.2
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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.

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

  • Lee, Kyu-Sik;Suh, Mee-Kyung;Han, Dal-Sun
    • Korean Journal of Health Education and Promotion
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    • v.23 no.3
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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.

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

  • Choi, Jeong-Hee;Yun, Chang-Ok;Lee, Dong-Hoon;Yun, Tae-Soo
    • Journal of Korea Multimedia Society
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    • v.12 no.9
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    • pp.1342-1350
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    • 2009
  • Until today, the uses of digital display system mostly included demonstration, observation, and exhibition of simple images. The strengths were that the images that changes in line with the music played could be reinterpreted as a different work. Also, it could stimulate the sensibility of the users. However, the range of the uses of the system is very limited and users could easily lose their interest. Therefore, it is necessary to develop a system that could continuously induce and motivate user interaction. Therefore, the RSS based digital folding screen system proposed by this paper has an objective of being used as an interactive media system which overcome the limitations of former eight-sided folding screen used for simple observation purposes. It also applied the main function of RSS in which the user could collect and read newly registered messages without visiting the blogs or corresponding websites. Therefore, it is capable of sending the information needed by the user. Generally, we can observe the contents for mere observation purposes and when necessary, it could also be utilized for advertisement or exhibition purposes. It could also be used as a information transfer system in public facilities.

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

  • Choi, Gae-Young;Son, Kwang-Ho
    • Korean Institute of Interior Design Journal
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    • v.26 no.2
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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.