• Title/Summary/Keyword: 안양

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Application Method of Site Calibration Function of Network RTK Survey for Local Coordinate System Result Analysis (지역좌표계 성과분석을 위한 네트워크 RTK측량 사이트 캘리브레이션 기능 적용 방안)

  • Shin, Chang Soo;Choi, Yun Soo;Park, Moon Jae
    • Journal of Cadastre & Land InformatiX
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    • v.47 no.1
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    • pp.95-110
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    • 2017
  • The network RTK surveying has been widely used in the field of cadastral surveys in recent years, and its use is gradually expanding. As a result of the implementation of GPS static surveys by civilian companies in accordance with the progress of the cadastral surveys and gradual civilian transfer plans and cadastral surveys, there has been an increase in the number of civilian companies performing surveys. In this paper, we describe the process of applying the results of analysis of conformity using the network RTK site calibration function on the local coordinate system to the GPS static surveying of the cadastral reference points in Anyang city. In addition, the measurement results of the network RTK site calibration function and the results of the GPS static surveying network reconciliation in the local coordinate system were compared, and the performance was determined within 0.04m maximum of RMSE(Root Mean Square Error), and further study on the application method is needed.

Synthesis of Zinc Ferrite Nanocrystallites using Sonochemical Method (음향화학법을 이용한 아연페라이트 나노입자의 합성)

  • Cho, Jun-Hee;Ko, Sang-Gil;Ahn, Yang-Kyu;Kang, Kun-Uk;An, Dong-Hyun;Choi, Eun-Jung
    • Journal of the Korean Magnetics Society
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    • v.17 no.2
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    • pp.71-75
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    • 2007
  • Ultrasonic irradiation in a solution during the chemical reaction may accelerate the rate of the reaction and the crystallization at low temperature. We have synthesized nanometer sized zinc ferrite particles using chemical co-precipitation technique through a sonochemical method with surfactant such as oleic acid. The thermal behaviour of the zinc ferrite was determined by the thermoanalytical techniques (TGA-DSC). Powder X-ray diffraction measurements show that the samples have the spinel structure. Magnetic properties measurement were performed using a superconducting quantum interference device (SQUID) magnetometer.

THE INCIDENCE OF MESIODENS (상악 정중과잉치의 발병율)

  • Kim, Jong-Bin;Kim, Jong-Soo;Park, Ji-Eun
    • Journal of the korean academy of Pediatric Dentistry
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    • v.34 no.4
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    • pp.646-650
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    • 2007
  • The purpose of this study was to evaluate the prevalence of mesiodens at pediatric dental clinic in Anyang, Kyeong Gi-Do. From retrospective reviews of all patients who visited Kizwell pediatric dental clinic from 2003.4-2006.4, 241 patients (289 mesiodens) who were shown to have mesiodentes were examed by a periapical radiograph and a panoramic radiograph. The incidence of mesiodens was 3.42% and the ratio of male/female (184/57) was 3.2:1. The number of supernumerary teeth was one in 193 cases (80%), two in 48 cases (20%). The mesiodens was placed at left side more frequently and the most common shape was conical type (208, 78%). Of 289 mesiodens, the direction of the crown of the mesiodens was inverted in 156 (54%), in a normal direction in 104 (36%), in a horizontal direction with regard to the tooth axis in 29 (10%). Early diagnosis of the mesiodens allow the most appropriate treatment, often reducing the extent of surgery, orthodontic treatment and possible complications.

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A Historical Trends of Doctoral Nursing Education in Korea (한국 간호학박사교육의 역사적 흐름)

  • Oh, Kasil;Park, Young Sook;Lee, Ja Hyung;Oh, Kyong-Ok;Ahn, Yang Heui;Lim, Jiyoung
    • The Journal of Korean Academic Society of Nursing Education
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    • v.20 no.1
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    • pp.93-107
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    • 2014
  • Purpose: The aim of this study was to identify historical backdrop leading to the introduction of the doctorate degree of nursing in Korea, and to explore trends of doctoral nursing education program. Methods: The research design was a descriptive study adopting a historical approach. Documentation data were collected through web sites and mail survey. The semi-structured interviews were conducted with 6 professors who were involved in the introduction of the doctorate degree of nursing. The outcomes of doctoral nursing education program were evaluated with a total of 1,153 dissertations' titles published from 1982 to 2007. Results: First introduced in Korea in 1978, doctoral nursing education program had steadily increased totaling 21 doctoral program in 2007. This resulted in a rapid increase in the number of doctoral students, but the number of faculty and the quality were not as satisfactory as expected. Many doctoral program had the missions or goals that fostered nursing scholars, theorists, and researchers, a trend that seems set to continue. The majority of dissertations utilized the experimental design (39.9%), others were qualitative design (21.6%), and survey design (19.0%). Conclusion: Doctoral education that is the hallmark of nursing scholarship is further elaborated in terms of academic tradition of nursing school in Korea.

An analysis on the Trend of Nursing Research in the Journal of Rheumatology Health (대한 류마티스 건강 학회지 논문분석을 통한 연구경향 분석 - 창간호부터 2003년도까지 -)

  • Park, Kyung-Sook;Choi, Eun-Hee;Ryoo, Eon-Na;Hwang, Yun-Young;Chung, Hae-Kyung;Ahn, Yang-Heui;Paik, Hoon-Jung;Lim, Nan-Young;Lee, Eun-Ok
    • Journal of muscle and joint health
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    • v.11 no.1
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    • pp.18-30
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    • 2004
  • Purpose: The purpose of this study was to identify the trend of research on the nursing research in the journal of rheumatology health and to suggest future perspective for nursing research. Method: In this study, we reviewed the contents of 131 researches published in this journal from its beginning year 1994 to year 2003. Result: In the 85.5% researches, type of the research subjects was patient. research that subject is patient' family was none. An analysis of the research design showed, non-experimental research was 67.2%, experimental research was 26.7%, qualitative research was 5.3%, triangulation research was only one. In the experimental design types of nursing intervention were movement intervention 38.4%, cognitive intervention 38.4%. and true experimental research was none. Among non-experimental researches, 93.2% was survey method, methodological research was two, concept analysis research was two, a-method was one. Conclusion: There has been a lack of qualitative research, true experimental research, research using vary nursing intervention. Further research need nursing intervention development that intervention can be use in actual nursing care area.

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An Analysis of Trends in Nursing Research Utilizing Experimental Designs (류마티스 건강학회지 창간호부터 10년간의 실험연구 분석을 통한 연구 경향 분석)

  • Park, Kyung-Sook;Choi, Eun-Hee;Hwang, Yun-Young;Ahn, Yang-Heui;Chung, Hae-Kyung;Paik, Hoon-Jung;Ryoo, Eon-Na;Lee, Eun-Ok
    • Journal of muscle and joint health
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    • v.11 no.2
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    • pp.136-152
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    • 2004
  • Purpose: The purpose of this study was to summarize trends and status of nursing research utilizing experimental designs in the Journal of Rheumatology Health over the past 10 years. Method: The Journal of Rheumatology Health published 37 experimental research articles between 1994 and 2004. These articles were included in a retrospective descriptive analysis. A checklist was utilized for data collection. Results: Qoasi-experimental researches were more frequent than pre-experimental research, but there were 8 research studies which had no hypothesis. The most frequently used nursing interventions were exercise/movement, and cognitive, followed by sensitive, and social interventions. There were very few research studies that used random assignment for internal validity. The rate of effectiveness of self-help interventions was lower than socio-psychological, cognitive, or motor-physical interventions. There was no research regarding families of patients with rheumatoid disease. Conclusion: Rigorous experimental research design is needed for internal and external validity in future research. Generalizing the effects of nursing interventions that are the results of rigorous experimental designs will contribute to promote the quality of life of patients with rheumatism and their families.

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Oxygen Fluctuation Monitored with High Frequency in a Eutrophic Urban Stream (the Anyang Stream) and the Effect of Weather Condition (부영양 도심하천(안양천)에서 고빈도 관측에 의한 산소고갈과 기상조건의 영향 연구)

  • Kim, Sun-Jung;Shin, Myoung-Sun;Kim, Jai-Ku;Lee, Jae-Yong;Jeong, Karp-Joo;Ahn, Bu-Young;Kim, Bom-Chul
    • Korean Journal of Ecology and Environment
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    • v.45 no.1
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    • pp.34-41
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    • 2012
  • The variation of dissolved oxygen (DO) was monitored with high frequency by an automatic data-logging sensor in a eutrophic urban stream (the Anyang Stream) located in a metropolitan area of Seoul, South Korea. In general, DO showed the diel variation of increase in daytime and decrease at night, implying that primary production is a major mechanism of oxygen supply in this ecosystem. The fluctuation of oxygen was determined by rainfall. DO depletion was most obvious after a rainfall resulting in an anoxic condition for a day, which is thought to be caused by scouring of periphyton and organic ooze at the stream bottom. Seasonally DO was higher in winter and frequently depleted in warm seasons. DO depletion was often at a dangerous level for fish survival. Fish survey showed that little fish was living at the study site and oxygen depletion may be the major stress factor for aquatic animals. From the results it can be suggested that a high frequency monitoring of oxygen should be established for the proper assessment of aquatic habitats and better management strategy.

Visualization Design of Monitoring System using Mash-up Method (Mash-up기법을 활용한 모니터링 시스템의 시각화기법)

  • Kim, Joohwan;Nam, Doohee
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.14 no.3
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    • pp.69-74
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    • 2014
  • Numerious agencies are trying to install many surveilance systems in their jurisdiction. A mashup,is a page, or application, that uses content from more than one source to create a single new service displayed in a single graphical interface. The main characteristics of a mashup are combination, visualization, and aggregation. It is important to make existing data more useful, for personal and professional use. To be able to permanently access the data of other services, mashups are generally client applications or hosted online. This study is utilizing mash-up technology to provide suitable location scheme for monitoring and surveilance system in order to utilize existing infrastructure and to provide better service to the public.

Study on the Effect of Density Ratio of Gas and Liquid in Sloshing Experiment (기체-액체 밀도차에 대한 슬로싱 충격압력의 실험적 고찰)

  • Ahn, Yangjun;Kim, Sang-Yeob;Kim, Kyong-Hwan;Lee, Sang-Woo;Kim, Yonghwan
    • Journal of the Society of Naval Architects of Korea
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    • v.50 no.2
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    • pp.120-128
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    • 2013
  • This paper presents the results of sloshing experiments having different fluids in model tanks with various density ratios. The experimental model consisting water and air at ambient, which has been commonly used, is not consistent in density ratio with that of an actual LNG cargo tank. Therefore, an advanced experimental scheme is developed to consider the same density ratio of LNG and NG by using a mixed gas of sulfur hexafluoride ($SF_6$) and nitrogen ($N_2$). For experimental observation, a two-dimensional model tank of 1/40 scale and a three-dimensional model tank of 1/50 scale have been manufactured and tested at various conditions. Two different fillings with various excitation frequencies under regular motions have been considered for the two-dimensional model tank, and three different filling levels under irregular motions have been imposed for the three-dimensional model tank. The density ratio between gas and liquid varies from the ratio of the ambient air and water to that of the actual LNG cargo container, and the different composition of gas is used for this variation. Based on the present experimental results, it is found that the decrease of sloshing pressure is predicted when the density ratio increases.

Real-time Gaussian Hole-Filling Algorithm using Reverse-Depth Image (반전된 Depth 영상을 이용한 실시간 Gaussian Hole-Filling Algorithm)

  • Ahn, Yang-Keun;Hong, Ji-Man
    • Journal of the Korea Society of Computer and Information
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    • v.17 no.7
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    • pp.53-65
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    • 2012
  • Existing method of creating Stereoscopy image, creates viewpoint image from the left and right by shooting one object with 2 lens in certain distance. However, in case of 3-D TV using Stereoscopy camera, the necessity to transmit 2 viewpoint images from the left and right simultaneously, increases the amount of bandwidth. Various and more effective alternatives are under discussion. Among the alternatives, DIBR(Depth Image Based Rendering) creates viewpoint images from the left and right using one image and its Depth information, thus decreasing the amount of transmitted bandwidth. For this reason, there have been various studies on Algorithm to create DIBR Image in existing Static Scene. In this paper, I would like to suggest Gaussian Hole-filling solution, which utilizes reverse-depth image to fill the hole naturally, while minimizing distortion of background. In addition, we have analyzed the effectiveness of each Algorithm by comparing and calculating its functions.