• 한국지구물리탐사학회:학술대회논문집
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• 2005.05a
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• pp.255-260
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• 2005

A Gravity characteristic of Svalbard archipelago in Arctic was studied by using ArcGP data. There are situated the Dasan science station. After bouguer correction, an edge effect of free-air anomaly, which is similar to topography, are not shown at passive continent margin, and after terrain correction with GTOPO30 data, gravity anomaly increases from continent to marine. that is deep connected with rise of Moho discontinuity. The correlation of topography and free-air anomaly shows that the isostasy of continent attains a little less than marine. After filtering, the residual anomaly are shown high and low anomalies related to fracture zone in continent and base depression or thick sedimentary layer in continental slope, marine.

• The Korean Journal of Petroleum Geology
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• v.13 no.1
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• pp.17-23
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• 2007

Gravity characteristics are investigated in the vicinity of the DASAN scientific station, located at the Svalbard Archipelago, the Arctic using ArcGP data. Boundary effects of free-air gravity anomalies, which appeared generally at the continental margin, are erased after Bouguer correction was applied. Complete Bouguer anomalies produced after terrain correction by GrOPO30 show that gravity anomalies increase from continent to marine. This phenomena seem to be related to the rise of Moho discontinuity. The cut-off frequency of 0.16 was decided after power spectrum analysis and the gravity anomalies were divided into two parts. Residual anomalies in high frequency part show that characteristics of high values along the faults and of low values related to thick sediments in the continent. Characteristic is low values from basement subsidence of continental slope or thick sediments in the marine. The undulation of Moho discontinuity from 3-D inversion modeling show typical characteristics of continental margin that become higher from Svalbard archipelago to Knipovich ridge bordering Eurasian plate.

• Proceedings of the KSRS Conference
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• 2008.03a
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• pp.3-6
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• 2008

본 논문에서는 레일형 GB-SAR의 단점을 극복하고자 차량에 원형레일을 탑재하여 신속한 기동을 확보하고 합성구경의 길이를 늘리며 영상영역을 확장한 Arc-SAR의 설계안을 제시한다. 하드웨어 측면에서 살펴보면, 밴형 차량의 상부에 원형레일을 설치하고 마이크로파 송, 수신 안테나를 탑재한 후 레일 위를 1mm 이내의 정밀도로 이동시키며, 자료를 획득하게 된다. 이때 안테나에 연결된 동축 케이블은 차량 내부의 송, 수신장치에 연결되는데 RF대역에서 완벽히 작동하는 슬립링이 없기 때문에 내부 송, 수신 장치를 턴 테이블위에 장착하여 외부 안테나의 이동과 동일한 각도로 회전하여, 동축 케이블의 꼬임을 방지하게 된다. 송, 수신 장치의 구성은 벡터 네트워크 분석기를 기반으로 마이크로파 앰프, 마이크로파 스위치로 구성되며, 통합 제어 소프트웨어를 통해 외부 안테나의 이동과 함께 제어된다. 한편, Arc-SAR 영상의 구현은 원형레일을 따라 얻어지는 합성구경의 기하학적인 특수성을 감안하여 최초로 시도될 것이다. 이 시스템은 RTK-GPS를 장착하여 지반변형 모니터링 시 차량 이동 오차를 최소화 하고자 하며, 이외에 고정형 산란체를 이용하여 차량 이동 오차를 보정하고자 한다. 또한 AWS (Automatic Weather System)을 장착하여 위상의 대기보정을 동시에 수행할 것이다. 이 시스템은 차량 탑재에 의한 기동성의 확보로 침수나 침하 등 긴급 재난 지역에 즉각적인 대응이 가능하며, 대형 구조물의 주기적인 변형 모니터링 등에 활용성이 클 것이다.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.524-524
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• 2000

We have been developing a method to build one-step-ahead prediction models for time series using genetic programming (GP). Our model building method consists of two stages. In the first stage, functional forms of the models are inherited from their parent models through crossover operation of GP. In the second stage, the parameters of the newborn model arc optimized based on an iterative method just like the back propagation. The proposed method has been applied to various kinds of time series problems. An application to the seismic ground motion was presented in the KACC'99, and since then the method has been improved in many aspects, for example, additions of new node functions, improvements of the node functions, and new exploitations of many kinds of mutation operators. The new ideas and trials enhance the ability to generate effective and complicated models and reduce CPU time. Today, we will present a couple of financial applications, espc:cially focusing on gold price prediction in Tokyo market.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2001.11a
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• pp.1-4
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• 2001

본 연구에서는 실크 직물 7종의 마찰음을 녹음한 후, 색채 변환시켜 소리와 변환색채에 e한 감성을 평가함으로써 시각과 청각을 만족시킬 수 있는 의류소재 개발에 대한 기초자료를 제공하고자 하였다. 피험자 30명을 대상으로 소리와 변환색채를 차례로 제공한 후 감성을 평가하도록 하였다. 물리량은 소리의 경우 LPT, $\Delta$L, $\Delta$f, ARC를 색채의 경우 RP, GP, BP, CC를 계산하여 감성과의 관계를 조사하였다. 소리와 색채에 대한 감성차원으로는 '우아함', '활동감', '터프함'의 세요인이 도출되었다. 각 감성차원에 대한 소리와 색채 물리량과의 관계를 살펴보면, LPT와 $\Delta$L이 작을수록, 홍색비율이 크고 색채빈도수가 적을수록 우아함차원으로 평가하였으며, LPT와 $\Delta$L의 값이 클수록, 녹색비율이 크고 색채빈도수가 많을수록 활동감차원으로 평가하였다. 또한 ARC값이 작을수록, 홍색비율이 클수록 터프함차원으로 나타났다. 직물별 소리와 색채에 대한 선호도는 전통적인 수자직 직물이 가장 높게 나타났다.

• International Journal of Highway Engineering
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• v.14 no.1
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• pp.1-8
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• 2012

The horizontal alignment of road is deeply related with the stability of the road and traffic capacity. It is necessary to analyze horizontal alignment of road accurately for efficient maintenance of the road and relevance judgment about the standard. Recently the study on horizontal alignment of road using Lidar data and GPS was concluded, but they were many problem analyzing horizontal alignment radius of curvature in wide area. In this study, the tool which the radius of curvature can evaluate the suitability about "Rules about the Road Structure & Facilities Standards" by using center lines of the road of the digital map tries to implement on GIS. The interface was designed and implemented which can automatically estimate the Road Centerline Horizontal Alignment by using $ESRI^{(R)}$ $ArcObject^{TM}$.

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.01a
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• pp.179-180
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• 2011

항공기의 비행경로 시각화는 저고도 임무나 지형고도에 대한 위협을 해소하기 위하여 널리 사용되는 시스템이다. 하지만, 시스템을 구성하기 위하여 GPS와 방대한 지리정보를 구축해야하는 제약으로 인하여 게임 등의 저가형 시스템에 사용되기에는 불가능하다. 본 논문에서는 비행경로를 경제적으로 시각화하기 위한 오픈소스 기반의 DMM(Digital Moving Map) 시스템을 제한한다. 먼저 X-Plane에서 UDP를 통하여 비행정보를 전달받아 구글어스에서 시연 및 지형고도 정보를 DMM 시스템에 전달한다. DMM 시스템에서는 비행체의 고도와 현 위치의 지형고도를 매핑하여 ArcGIS의 MapServer를 통해 가져온 지도 정보상에 비행경로를 시각화한다. 시간간격에 다른 지형고도와 비행체의 고도 비교를 위하여 별도의 모니터링 화면을 제공한다. 본 논문의 결과물은 게임 및 연구 등의 목적으로 비행경로를 시각화하는 분야에 경제적인 도구로 사용될 수 있을 것이다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.21 no.3
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• pp.237-243
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• 2003

The complicated facilities on the ground have begun to be laid under the ground as increasing emphasis on the beauty of cities due to centralization. But, as the kind of the facilities have been concentrated on the narrow area, accidents occur due to the difficulty of maintenance and the inaccuracy of location information. In this study, first we constructed the field test model to compare with the method of underground probing. So, we could know that the electromagnetic induction method and GPR(Ground Penetration Radar) are useful. It was acquired the position information for the underground facilities using a RTK-GPS. As the result, we have analyzed the accurate position of the underground facility and show the way improving accuracy in detecting and surveying comparing with the traditional surveying method. Also, we hope to contribute the effective maintenance and prevention of disasters to the underground facility as using underground facilities 3D position with Arcview and building the DB of exact depth and underground facilities information system.

• Korean Journal of Environment and Ecology
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• v.25 no.4
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• pp.516-525
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• 2011

We studied the influence certain environmental factors (proximity of roosting site, roads, and residential areas) have on the spatial distribution of cranes in the Cheorwon, Korea. Using a range finder and GPS, data were collected from January to February 2007 and were subsequently evaluated with ArcGIS. The size of the cranes' wintering habitat was estimated to be 7$76.9km^2$. Five hundred and fifty-five flocks of cranes were observed and detailed distributions were collected. Feeding distribution of the cranes showed clustered distribution, however, no tendencies of spatial autocorrelation were apparent. Adjacent regions with paved roads and residences showed lower densities than other areas. Distances at which paved roads and residential areas induced changes in feeding flock densities were 1500m and 1750m, respectively. Feeding flock density decreased with increased distance from roosting site. Feeding flock density of the two crane species did not increase as distance from roads increased, however, the density of individuals showed a significant increasing tendency with increased distance from roads. In both species, density of feeding flocks and individuals significantly increased with increasing distance from residential areas. In Red-crowned Cranes, the density of feeding flocks and individuals significantly decreased with increasing distance from roosting site, however, in the case of White-naped Cranes, there was an even distribution in density of feeding flocks and individuals.

• Journal of the Korean Association of Geographic Information Studies
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• v.16 no.2
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• pp.65-74
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• 2013

A research program for the roe deer (Capreolus pygargus) has been set up at the Jeju Experimental Forest of Warm-temperate and Subtropical Forest Research Center in Jeju Island. To explore the home range size and habitat environment, 3 males and 3 females have been captured and released with GPS-CDMA based telemetry since 24th April 2012. Among them 2 females were captured at Hannam Forest of Seoguipo, were pregnant and monitored by the tracking system. There are significantly different patterns in behavior around the parturition. After parturition they show recurrence behavior toward one point in the forest, while they have irregular patterns in moving before. To calculate the home range size, the MCP (minimum convex polygon) and Kernel Method are applied through the extension of ESRI ArcView GIS 3.2a. The pregnant female captured 9th May 2012 has the size of MCP=67ha and Kernel 95%=0.5ha and the pregnant female captured 12th July 2012 has the size of MCP=82ha and Kernel 95%=0.9ha. Although a fawn could move immediately just after the birth likely others to avoid any risks, they stay at very narrow space significantly, and the size become wider when more time goes by. Furthermore, they mainly have a home range away from human activity area such as forest tracking roads. The habitat environment for the parturition is summarized as 40years old cryptomeria forests with new sprouting shrubs for foods, which are the controlled forest through the thinning and removing shrubs 2 years ago. This means that forest works could cause positive results for the parturition and survival of young. The period of parturition is earlier than highland in Jeju Island, the size of home range is narrower than other countries, and the habitat environment of the shelter for a fawn is similar to previous research in other countries.