• 제목/요약/키워드: $MAP_1$

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실외 이동로봇의 고도지도 기반의 전역 위치추정을 위한 Hausdorff 거리 정합 기법 (Hausdorff Distance Matching for Elevation Map-based Global Localization of an Outdoor Mobile Robot)

  • 지용훈;송재복;백주현;유재관
    • 제어로봇시스템학회논문지
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    • 제17권9호
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    • pp.916-921
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    • 2011
  • Mobile robot localization is the task of estimating the robot pose in a given environment. This research deals with outdoor localization based on an elevation map. Since outdoor environments are large and contain many complex objects, it is difficult to robustly estimate the robot pose. This paper proposes a Hausdorff distance-based map matching method. The Hausdorff distance is exploited to measure the similarity between extracted features obtained from the robot and elevation map. The experiments and simulations show that the proposed Hausdorff distance-based map matching is useful for robust outdoor localization using an elevation map. Also, it can be easily applied to other probabilistic approaches such as a Markov localization method.

토공현장 디지털맵 시계열 변화분석 프레임워크 기술개발 (Development of Framework for Digital Map Time Series Analysis of Earthwork Sites)

  • 김용건;박수열;김석
    • 한국BIM학회 논문집
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    • 제13권1호
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    • pp.22-32
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    • 2023
  • Due to the increased use of digital maps in the construction industry, there is a growing demand for high-quality digital map analysis. With the large amounts of data found in digital maps at earthwork sites, there is a particular need to enhance the accuracy and speed of digital map analysis. To address this issue, our study aims to develop new technology and verify its performance to address non-ground and range mismatch issues that commonly arise. Additionally, our study presents a new digital map analysis framework for earthwork sites that utilizes three newly developed technologies to improve the performance of digital map analysis. Through this, it achieved about 95% improvement in analysis performance compared to the existing framework. This study is expected to contribute to the improvement of the quality of digital map analysis data of earthworks.

일본군 호남 의병토벌대의 진중일지(陣中日誌)에 이용된 전투약도 연구 (The Battle Maps in the Journal of Armed Forces of Japanese Army Suppressing the Honam's Patriotic Soldiers)

  • 남영우
    • 대한지리학회지
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    • 제47권3호
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    • pp.407-425
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    • 2012
  • 본 연구는 항일의병대를 소탕하기 위해 한국에 파견된 일본군 보병 제14연대가 작성한 "진중일지"의 전투약도를 고찰한 것이다. 분석결과, 이 일지에 기록된 전투상황보고에 의하면 일본군이 압승을 거두었다고 해도 과언이 아닐 정도로 토벌대의 일방적인 전투를 벌일 수 있었던 것은 지형도 때문이었음이 밝혀졌다. 또한 일본군이 사용한 작전지도는 군용비도라 불리는 1:5만 축척의 제1차지형도를 필사한 지도였음이 규명되었다. 토벌대가 사용한 지형도의 축척은 대부분 1:5만이었으나 경우에 따라서는 1:2만 축척의 지형도가 이용되기도 하였다. 이는 치밀한 군사작전을 위해 더 상세한 지형을 묘사하기 위해 제1차지형도를 확대한 것으로 밝혀졌다.

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GIS를 이용한 3차원도로시뮬레이션에 관한 연구 (A Study on the Three Dimensional Road Design Technique Based on GIS Technique)

  • 권혁춘;이병걸
    • 한국환경과학회지
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    • 제13권6호
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    • pp.489-495
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    • 2004
  • The purpose of this research is to apply GIS(Geographic Information System) for the road simulation and find some benefits analysis for the design processes. The northern Jeju island was selected as a case study. The 1/5,000 digital map and GIS technique were used for optimum road design of the island based on Arc View software. Using this software we can get an overlay map by combination of hill shade map, slope map, aspect map, and building buffer map. Based on the overlay map, we designed the optimum road line and performed three dimensional simulation. From the results, we found that the developed three dimensional road simulation technique using GIS technique that was very useful tool to estimate the reasonable road design before the real road construction works.

Log-MAP을 사용한 3GPP용 터보 복호기의 설계 (A Design of Turbo Decoder for 3GPP using Log-MAP Algorithm)

  • 강형구;전흥우
    • 한국정보통신학회:학술대회논문집
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    • 한국해양정보통신학회 2005년도 춘계종합학술대회
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    • pp.533-536
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    • 2005
  • MAP 알고리즘은 터보코드의 최적 복호알고리즘으로 알려져 있지만, 연산의 복잡도가 매우 크다. 이러한 MAP 방식의 단점을 개선하기 위하여 일반적으로 log-MAP 알고리즘을 이용하게 된다. 본 논문에서는 log-MAP 복호기에서 비교적 연산량이 크고 동작속도에 큰 영향을 미치는 상태 메트릭 계산 블록의 연산 속도를 향상시킨 개선된 구조를 제안하고, LUT(Lookup Table)을 이용하지 않고 간단한 연산에 의해 보상하는 linear 보상기를 제안하여 동작속도를 개선하였다.

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PREVENTION OF CANCER BY DIETARY FACTORS: TARGETING MAP KINASE/AP-1 SIGNAL TRANSDUCTION PATHWAYS

  • Dong, Zigang
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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    • pp.29-30
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    • 2001
  • MAP kinase/ AP-1 signal transduction components are rapidly initiated by many extracellular stimuli, especially environmental carcinogens. We have investigated the role of MAP kinases (Erks, JNKs, and p38 kinases) and AP-1 signal transduction pathways in the process of cell transformation and carcinogenesis. Incubation of Cl 41 cells with tumor promoters such as TPA, EGF, arsenic, or TNF-$\alpha$ led to cell transformation and activation of MAP kinases.(omitted)

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SURFACES OF REVOLUTION WITH POINTWISE 1-TYPE GAUSS MAP IN PSEUDO-GALILEAN SPACE

  • Choi, Miekyung;Yoon, Dae Won
    • 대한수학회보
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    • 제53권2호
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    • pp.519-530
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    • 2016
  • In this paper, we study surfaces of revolution in the three dimensional pseudo-Galilean space. We classify surfaces of revolution generated by a non-isotropic curve in terms of the Gauss map and the Laplacian of the surface. Furthermore, we give the classification of surfaces of revolution generated by an isotropic curve satisfying pointwise 1-type Gauss map equation.

芳香族디아민 및 아미노페놀-포름알데히드系 樹脂에 관한 硏究 (第1報) (Studies on Aromatic Diamine and Aminophenol-Formaldehyde Type Synthetic Resins (I))

  • 최규석;이하정;진재혁
    • 대한화학회지
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    • 제17권1호
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    • pp.60-66
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    • 1973
  • m-Phenylenediamine(MPD) 및 m-aminophenol(MAP)을 각각 질소기류중, pH1, m-Phenylenediamine(MPD) 및 m-aminophenol(MAP)을 각각 窒素氣流中, pH1, $-5{\sim}0^{\circ}C$에서 포름알데히드와 반응시키면 약간의 發熱과 함께 附加縮合反應이 진행되어 不溶性인 重合體를 生成한다. 또한 같은 反應 條件下에서 恐縮合反應體도 生成하며, 生成 重合體의 耐熱性 및 Bromophenol Blue 또는 Methylene Blue의 吸着性은 恐縮合重合體의 경우가 우수하다. MPD-MAP-F계(F: 포름알데히드) 恐縮合樹脂는 TGA에서 몰比 1:2:6의 경우, $800^{\circ}C$에서 각 $40\%$의 重量 損失을 나타내는 좋은 耐熱性을 띄며, 몰比 2:1:6의 恐縮合樹脂는 1g당 Bromophenol Blue를 308mg을 吸着하는우수한 吸着性을 띈다.

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Effect of Dietary Marine Microalgae (Schizochytrium) Powder on Egg Production, Blood Lipid Profiles, Egg Quality, and Fatty Acid Composition of Egg Yolk in Layers

  • Park, J.H.;Upadhaya, S.D.;Kim, I.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제28권3호
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    • pp.391-397
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    • 2015
  • Two hundred and sixteen Institut de S$\acute{e}$lection Animale (ISA) brown layers (40 wks of age) were studied for 6 wks to examine the effect of microalgae powder (MAP) on egg production, egg quality, blood lipid profile, and fatty acid concentration of egg yolk. Dietary treatments were as follows: i) CON (basal diet), ii) 0.5% MAP (CON+0.5% Schizochytrium powder), and iii) 1.0% MAP (CON+1.0% Schizochytrium powder). From 44 to 46 wks, egg production was higher in 1.0% MAP treatment than in control treatment (linear, p = 0.034); however, there was no difference on the egg production from 40 to 43 wks (p>0.05). Serum triglyceride and total cholesterol were significantly reduced in the groups fed with MAP, compared to those in groups fed with control diets (Quadratic, p = 0.034 and p = 0.039, respectively). Inclusion of 0.5% MAP in the diet of layers improved egg yolk color, compared with hens fed with basal diet at 46 wks (quadratic, p = 0.044). Eggshell thickness was linearly increased in MAP-fed treatments at 46th wk (p<0.05). Concentration of yolk docosahexaenoic acid (DHA; C22:6n-3) was increased in treatment groups fed with MAP (linear, p<0.05). The n-6 fatty acids, n-6/n-3 fatty acid, and unsaturated fatty acid/saturated fatty acid were decreased in treatment groups fed with MAP (linear, p<0.05). These results suggest that MAP improved the egg production and egg quality, and may affect serum lipid metabolites in the layers. In addition, MAP increases yolk DHA levels, and deceases n-6/n-3 fatty acid ratio.

Quantitative Assessment of Nonpoint Source Load in Nakdong River Basin

  • Kwon, Heon-Gak;Lee, Jae-Woon;Yi, Youn-Jeong;Cheon, Se-Uk
    • 한국환경과학회지
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    • 제23권1호
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    • pp.7-23
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    • 2014
  • This study estimates unit for the nonpoint source(NPS), classified according to the existing Level-1(large scale) land cover map, by monitoring the measurement results from each Level-2(medium scale) land cover map, and verifies the applicability by comparison with previously calculated units using the Level-1 land cover map. The NPS pollutant loading for a basin is evaluated by applying the NPS pollutant unit to Dongcheon basin using the Level-2 land cover map. In addition, the BASINS/HSPF(Better Assessment Science Integrating point & Non-point Sources/Hydrological Simulation Program-Fortran) model is used to evaluate the reliability of the NPS pollutant loading computation by comparing the loading during precipitation in the Dongcheon basin. The NPS pollutant unit for the Level-2 land cover map is computed based on precipitation measured by the Sangju observatory in the Nakdong River basin. Finally, the feasibility of the NPS pollutant loading computation using a BASINS/HSPF model is evaluated by comparing and analyzing the NPS pollutant loading when estimated unit using the Level-2 land cover map and simulated using the BASINS/HSPF models.