• Title/Summary/Keyword: Local area

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Efficient equalizer design for multi-carrier transmission system in local area access (가입자 지역 다중반송파 전송시스템의 등화기 구현)

  • 최재호
    • Journal of the Institute of Convergence Signal Processing
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    • v.2 no.3
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    • pp.32-38
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    • 2001
  • Multi-carrier data transmission system performance is mostly limited by Inter- symbol-interference that is caused by a dispersive characteristic of the transmission channel. In order to enhance the system performance to meet the service requirements of local access, the channel impulse response shortening method incorporated with a channel frequency response compensation method is proposed. For a fast and efficient implementation of the equalizer proposed, Kalman and LMS algorithms are successively used. To verify the channel equalization performance, a set of computer simulation is performed on a filter bank based multitone system operating in a typical high-speed local area data transmission environment. The results showed us a comparable signal-to-interference improvement over the conventional multitone equalization scheme.

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A study of joint development strategies of recognition and collaboration about green growth between local government and company in Dae-gu and Kyoung-buk Area (저탄소 녹색성장에 대한 인지도 향상 및 협업에 관한 연구 - 대구.경북지역을 중심으로)

  • Ahn, Sang-Hun;Kang, Eun-Gu;Lee, Sun-Kyu;Bae, Jung-Mi
    • Journal of Digital Convergence
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    • v.10 no.1
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    • pp.39-48
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    • 2012
  • Under the effectuation of Green growth from last year, It was surveyed in this study that how recognize of local government and companies in Dae-gu and Kyoung-buk Area. For this purpose, in order to see the present situation, the perception and influence to the Green growth was surveyed and analyzed. The result was that local government and companies were big differences in many items between the compared companies which are different. On the basis of this analysis, It was suggested what and how the companies and the government have to do in order to improve the perception of Green growth and make a new business chances.

Design Development of Cultural Fashion Products Based on the Baekje Local Culture (백제 지역문화기반의 패션문화상품 디자인 개발)

  • Kim, Hye-Kyung;Jeon, Hee-Kwan
    • Fashion & Textile Research Journal
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    • v.14 no.6
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    • pp.898-905
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    • 2012
  • This paper develops fashion products that express the beauty of Baekje through an investigation of the unique characteristics of Baekje artifacts. This work can promote the Baekje region and provide cultural goods for local festivals to improve the economic competitiveness of the area. Artifacts from the Muryongwangreung in Gongju (the capital city of Baekje during the Woongjin period)were reinterpreted into a more modern form. Among the Muryongwangreung artifacts, the king and queen's gold coffin as well as chignon ornaments were used as design motifs. These artifacts were stylized into motifs and developed into patterns using Adobe Illustrator CS3 and Adobe Photoshop CS3. The patterns were subsequently applied to the designs of scarves and ties. The color was selected using the CMYK colorway from the Gongju city logo subsequently, a total of 12 designs (including 6 ties and 6 scarves) were developed. The design developed from this research can be applied to diverse products to promote the area. Using the research as a foundation, fashion product development based on the local culture can have a significant impact on the establishment of the Baekje cultural identity and the competitiveness of the region.

MONITORING OF MOUNTAINOUS AREAS USING SIMULATED IMAGES TO KOMPSAT-II

  • Chang Eun-Mi;Shin Soo-Hyun
    • Proceedings of the KSRS Conference
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    • 2005.10a
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    • pp.653-655
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    • 2005
  • More than 70 percent of terrestrial territory of Korea is mountainous areas where degradation becomes serious year by year due to illegal tombs, expanding golf courses and stone mine development. We elaborate the potential usage of high resolution image for the monitoring of the phenomena. We made the classification of tombs and the statistical radiometric characteristics of graves were identified from this project. The graves could be classified to 4 groups from the field survey. As compared with grouping data after clustering and discriminant analysis, the two results coincided with each other. Object-oriented classification algorithm for feature extraction was theoretically researched in this project. And we did a pilot project, which was performed with mixed methods. That is, the conventional methods such as unsupervised and supervised classification were mixed up with the new method for feature extraction, object-oriented classification method. This methodology showed about $60\%$ classification accuracy for extracting tombs from satellite imagery. The extraction of tombs' geographical coordinates and graves themselves from satellite image was performed in this project. The stone mines and golf courses are extracted by NDVI and GVI. The accuracy of classification was around 89 percent. The location accuracy showed extraction of tombs from one-meter resolution image is cheaper and quicker way than GPS method. Finally we interviewed local government officers and made analyses on the current situation of mountainous area management and potential usage of KOMPSAT-II images. Based on the requirement analysis, we developed software, which is to management and monitoring system for mountainous area for local government.

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A Framework for Human Body Parts Detection in RGB-D Image (RGB-D 이미지에서 인체 영역 검출을 위한 프레임워크)

  • Hong, Sungjin;Kim, Myounggyu
    • Journal of Korea Multimedia Society
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    • v.19 no.12
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    • pp.1927-1935
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    • 2016
  • This paper propose a framework for human body parts in RGB-D image. We conduct tasks of obtaining person area, finding candidate areas and local detection in order to detect hand, foot and head which have features of long accumulative geodesic distance. A person area is obtained with background subtraction and noise removal by using depth image which is robust to illumination change. Finding candidate areas performs construction of graph model which allows us to measure accumulative geodesic distance for the candidates. Instead of raw depth map, our approach constructs graph model with segmented regions by quadtree structure to improve searching time for the candidates. Local detection uses HOG based SVM for each parts, and head is detected for the first time. To minimize false detections for hand and foot parts, the candidates are classified with upper or lower body using the head position and properties of geodesic distance. Then, detect hand and foot with the local detectors. We evaluate our algorithm with datasets collected Kinect v2 sensor, and our approach shows good performance for head, hand and foot detection.

A Study on the Characteristics of Daily Living and the Location of Welfare Facilities for the Aged in the Local City (지방소도시 노인복지시설의 입지와 고령자의 생활특성에 관한 연구)

  • Yang, Kum-Suek
    • Journal of the Korean Institute of Rural Architecture
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    • v.11 no.2
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    • pp.37-44
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    • 2009
  • The purpose of this study is to clarify the characteristics of daily living and the location of welfare facilities for the aged in the local city. The thorough investigation and observation works were made to them from the view points of daily living behaviors and behavioral places of the recuperating elderly and location of welfare facilities. This article discusses about the actual condition of the daily living activities of 252 elderly in 4 facilities. The results of this study are summarized as follows; We must actively prepare for the advanced age society to the increase of the elderly man population. The elderly man welfare facilities expansion needs the range who do not escape from existing a life area of the aged. The city of Sa-cheon the elderly man welfare facilities have got on favorable terms ready in the locational environment. But an facilities in the west area need to preparable emergency happen that facility construction. The usage of behavioral places in recuperating facilities are influenced by the physical environments and the basic characteristics of the elderly.

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A Study on the Development of Symbolic Places for Local Cultural Festival - Focused on the places for International Jazz Festival in Gapyeong - (지역문화축제 활성화를 위한 상징공간 구축방안 연구 -가평 국제 재즈페스티벌 장소를 중심으로-)

  • Lee, Hyung-Sook
    • Journal of Korean Society of Rural Planning
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    • v.20 no.2
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    • pp.151-158
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    • 2014
  • The purposes of this study is to identify a proper spot to create a symbolic place for the International Jazz Festival and to improve the connections among the place assets of Gapyeong as a place marketing strategies. To this end, the analysis and interpretation of spatial structure was conducted using space syntax. The results of the study showed that the entire structure of the space formed in the axis of a total of 200. The value of total integration was 0.833, which is relatively low, and the local integration degree was 1.588 degrees. Gahwa Street has the highest value of full integration (1.264) among the major points related with the Festival, followed by the former Gapeyong Station area (1.189). As a result, the former Gapeyong station area was identified as a recommendable place for symbolic place because it is highly accessible to the surrounding areas and spacious enough to function as a plaza. Developing a cultural street occupied by jazz cafes, concerts, shops and restaurants, and transforming the old railroad into a linear park will enhance the image of jazz city and help place marketing.

Micro Raman Spectroscopic Analysis of Local Stress on Silicon Surface in Semiconductor Fabrication Process (반도체 제조 공정에서 실리콘 표면에 유입된 Stress의 마이크로 Raman 분광분석)

  • Son, Min Young;Jung, Jae Kyung;Park, Jin Seong;Kang, Sung Chul
    • Analytical Science and Technology
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    • v.5 no.4
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    • pp.359-366
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    • 1992
  • Using micro-Raman spectrometer, we investigated the evaluation of microstress on silicon surface after the local thermal oxidation. The induced stress of silicon surface after local thermal oxidation shows maximum value at the interface of silicon oxide and active area. The smaller the size of active area, the larger stress. From the evaluation of three other device isolation processes, A, B and moB, whose active size has $0.45{\mu}m$ in length, moB process is turned out to have the lowest stress value and the smallest bird's beak effect.

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Computerized Outpatient's Prescription using Personal Computer and Local Area Network (PC 및 LAN을 이용한 외래처방 전달 시스템)

  • Kim, Won-Ky;Kim, Nam-Hyun;Huh, Jae-Man;Chang, Byung-Chul;Kim, Ji-Hyue
    • Proceedings of the KOSOMBE Conference
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    • v.1992 no.05
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    • pp.152-154
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    • 1992
  • We computerized outpatient's prescription using personal computer and local area network(LAN). The information and history of patient which is stored in the HOST computer is transfered to the local file server via emulatort & LAN. Then, the computerized outpatient's prescription which is made in each examination room is transfered to the admission of discharge office and pharmacy via LAN. In the admission of discharge office, drug charge is automatically calculated, and the prescription and envelope is printed out automatically in the pharmacy. Using this system, the patient takes the drug faster than before, eventually we improve medical service. Also, this system manage hospital works and administration effectively.

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Economical Analysis for the Integrated Watershed Sewage Works Program in the Sample Area (표본지역에서의 유역별 통합 하수도정비에 따른 경제적 효과 분석)

  • Yoon, Hyun-Sik;Kim, Duk-Jin;Lee, kwan-Yong
    • Journal of Korean Society of Water and Wastewater
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    • v.26 no.4
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    • pp.565-578
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    • 2012
  • Integrated watershed sewage works program(IWSWP) is defined as implementing, by one of local governments or central government, sewage facilities planning, installation and management for a certain watershed in which criteria of water quality is established and two or more local governments are involved. It is shown that IWSWP is more efficient for the improvement of water quality of water body than conventional local sewage works program(CLSWP) and besides, economical benefits can be achieved by integration of facilities and M&O. In this research, case study for 8 watershed area were investigated to evaluate the difference of effect between IWSWP and CLSWP. The research shows that IWSWP has the money saving result of approximately 12 % by cost reduction for sewage works investment. B/C analysis result shows that B/C ratio of IWSWP was 1.749 and it is higher than B/C ratio of 1.439 for CLSWP. At the same time, the B/C sensitivity analysis is carried out for the rate of discount and the recreational use benefit.