For a practical mobile robot team such as carrying out a search and rescue mission in a disaster area, the localization have to be guaranteed even in an environment where the network infrastructure is destroyed or a global positioning system (GPS) is unavailable. The proposed architecture supports localizing robots seamlessly by finding their relative locations while moving from a global outdoor environment to a local indoor position. The proposed schemes use a cooperative positioning system (CPS) based on the two-way ranging (TWR) technique. In the proposed TWR-based CPS, each non-localized mobile robot act as tag, and finds its position using bilateral range measurements of all localized mobile robots. The localized mobile robots act as anchors, and support the localization of mobile robots in the GPS-shadow region such as an indoor environment. As a tag localizes its position with anchors, the position error of the anchor propagates to the tag, and the position error of the tag accumulates the position errors of the anchor. To minimize the effect of error propagation, this paper suggests the new scheme of full-mesh based CPS for improving the position accuracy. The proposed schemes assuring localization were validated through experiment results.

In this study, mass concentrations and chemical compositions of PM2.5, including water-soluble ions and elements were determined at the 1,100 m-highland of Mt. Hallasan in Jeju Island across four seasons from August 2013 to August 2014. The average mass concentration of PM2.5 was 12.5±8.41 /m3 with 45.8% of the contribution from eight water-soluble ionic species. Three ionic species (SO4 2-, NH4 +, and NO3 -) comprised 96.2% of the total concentration of ions contained in PM2.5 and were the dominant ions, accounting for 43.5% of the PM2.5 mass at Mt. Hallasan. On the basis of the mass concentration level, seasonal variation, enrichment factor, and relationship among elements, we can presume that Mg, K, Ca, Mn, Fe, Co, Sr, Ba, Nd, and Dy originated mainly from crust or soil and that V, Cr, Ni, Cu, Zn, As, Cd, and Pb were significantly enriched in PM2.5 owing to the effects of the anthropogenic emissions. These results and the local distribution of emission sources and topographic characteristics near this sampling site suggest that the compositions of PM2.5 collected at the 1100 m-highland of Mt. Hallasan were largely influenced by inflow from outside of Jeju Island.

소설 속에 등장하는 인물은 특정한 시공간이 지시하는 특정한 상황 속에 존재 한다. 흔히 소설의 3요소 중 하나인 배경이라고 하는 것이 그것이다. 이 논문은 <최척전>의 전반부에 해당하는 임진왜란 기간 동안 작품 속의 인물들이 존재 한 작중 배경, 즉 몇 년, 몇 월, 며칠에 어떤 장소에 있었는가를 작품 속 증거를 찾아내어 고증하는 것을 목적으로 한다. 인물이 존재하는 시간과 장소 곧 특정 한 상황이 전제되면 그때 그 곳에 있었던 인물과 사건은 그때 그 곳의 상황과 관련하여 좀 더 구체적인 모습으로 드러나리라고 기대한다. 연구방법으로 따지 면 문학지리학의 맥을 잇고 있고 소설배경론에도 속한다. 이러한 시각으로 <최척전>을 보면 <최척전>의 첫들머리에서 최척이 정상사 에게 공부를 하러 가는 시기는 1592년 5월경이고, 옥영이 남원 정상사 집에 오는 시간은 1592년 8월경이다. 두 사람이 만나는 시점은 1593년 1월 말경이다. 최척이 변사정 의병부대에 종군하는 시점은 1593년 2월경이고, 두 사람이 다 시 만나는 시점은 1593년 10월 말이다. 옥영의 억지혼사의 뒷배경에는 제2차 진주성 전투 후 남원 남쪽까지 쳐들어왔다 물러간 일본군의 약탈이 있었다. 정 유재란 시기에 구례 피아골 연곡사로 피난을 간 최척 일가는 불과 하루 이틀 사 이로 엇갈리면서 동아시아 세 나라로 흩어지고 있다. 이렇게 따져놓고 보면 <최척전>에 등장하는 시간과 공간, 즉 인물들이 존재 하고 있던 정확한 날짜와 장소를 거의 재구할 수 있다. 이를 통해 작품 속 인물 들의 형상이나 주제의식 등에 대한 좀 더 진전된 형태의 해석으로 나아갈 수 있 는 길이 열릴 수 있을 것이라 기대한다.

이 연구는 서울지역의 다문화학생이 밀집한 학교를 대상으로 다문화교육의 현실에 대한 교원들의 인식과 요구사항을 조사함으로써 개선방향을 탐색하기 위해 수행되었다. 이를 위 해 2015년 기준으로 서울지역에서 다문화학생 비중이 높은 학교들을 선정하여 학교에 대한 문헌연구 및 학교교원에 대한 설문조사를 시행하였다. 연구결과 제안된 다문화밀집학교 개선을 위한 방향은 다음과 같다. 첫째, 학교 특성을 반 영한 적극적 학교 비전의 제시가 필요하다. 둘째, 일반학생과 다문화학생 모두를 고려한 통 합교육적 관점에서 다문화학생 밀집학교의 지원을 시행해야 한다. 마지막으로 다문화학교 의 교육력을 제고하기 위해서는 학교 내외의 공동체적 접근이 필요하다. 구체적인 개선방 안으로는 첫째, 교육 및 생활지도 측면에서 일반학생보다 다문화학생에 대한 어려움이 더 큰 점을 고려할 때 다문화밀집학교에 대한 교육여건 개선이 필요하며, 둘째, 다문화학생 교 육의 어려움을 고려하여 교원들에 대한 지원을 대폭 강화해야 한다. 마지막으로 학교공동 체의 일원으로서 학부모 교육 및 지원을 강화해야 한다.

In this study, global climate change scenario by Hadley Centre Global Environmental Model version 2-Atmosphere and Ocean (HadGEM2-AO) is dynamically downscaled using four regional climate models (RCMs). All RCMs with 12.5-km and 50-km resolution are integrated for continuous 27 years (1979-2005). In general, RCMs with higher horizontal resolution more reasonably capture the spatial distribution of precipitation over South Korea compared to those with lower resolution. In particular, heavy precipitation regions related to complex mountain ranges are well simulated due to detailed topography in RCMs with higher resolution. Difference between RCMs with dissimilar resolutions is relatively robust in summer compared to other seasons. This could be associated with that higher resolution and detailed topography lead to more realistic simulation of heavy summer precipitation related to mesoscale phenomena.

This study was aimed to investigate the spatial distributions and temporal changes of disaster areas due to heavy snowfall at all cities and guns (country level) in Korea during 1979-2014. The number of days of damage caused by heavy snowfall has increased, and amounts of damage also increased. However, the number of casualties by the heavy snowfall damage has decreased in the deaths and missing. Although the damage by heavy snowfall was concentrated in Gangwon Yeongdong region during 1980s, the damage had extended to the eastern coast of Gyeongbuk region, Chungcheong region, and the western coast of Jeolla region in 1990s. In 2000s, the damage was largely concentrated in Gyeonggi region, Chungcheong region and the southern part of western coastal area while the damage in the surrounding regions of the Taebaek Mountains were dominant during the early 2010s. The spatial and temporal patterns of the damage caused by heavy snowfall have changed over the study period with the decadal variations.

Due to the rapid economic development of Korea, the bridge have been built by government over the several years. Additionally, there are too many mountain and river and the bridge have been built in rural area. But bridge designers weren't considering the bridge landscape. And bridge was a negative factor in regional landscape. Because of this, this study surveyed the landscape preferences of rural bridge landscapes according to different bridge types. The results were summarized as follows: And this research include conducting a study on visual preference according to the bridge's type and background. And, the landscape of arch bridge in the river 1 is landscape of the highest preference. The the landscape of girder bridge in the river 2 is landscape of the lowest preference. In the river 1 and 2 landscape, high preference is observed in the arch bridge and low preference is noted in the girder bridge. In the mountain 1 and 2 landscape, high preference is observed in the cable-stayed bridge and low preference is noted in the girder bridge. In conclusion, the visual preference of bridge landscape depend on the background and bridge shape, the study said. Therefore, when bridge designer design the bridge, designer have to choose proper bridge shape according to the background. This research was conducted only in bridge landscape of rural area but the visual preference of bridge landscape can be changed according to the various background. And further research is needed to analyze visual preference of bridge landscape according to the various background.

This Research was carried out to investigate landscape characteristics of the traditional Chinese village through the landscape analysis. The Purpose of this study was to offer suggestions for improving Korea's traditional village scenery. This research was conducted by analysis about an important component of the landscape in Ping-shan traditional village. It was studied natural landscape, life landscapes, agricultural production landscapes and symbols landscape. This study was carried out through literature research, field research and interviews. The results of Chinese traditional village's landscape characteristic was First, Ping-shan traditional village was located on the basis of Feng-Shui settings. Second, Ping-shan traditional village was clan-based. Third, It is composed of a large green space on the outskirts of the village. Fourth, Ping-shan traditional village was a typical channel village. Fifth, Ping-shan traditional village was a living landscape with various features. sixth, Ping-shan traditional village was a lot of space to agricultural production, most of the arable land surround village. Suggestions for improving Korea's traditional village scenery are as follows ; First, proposes actively re-design on the base of defense fengshi landscape interpreted as a modern sense. Seconds, when large-scale farmland project is established in Korea, you can expect to gain knowledge from traditional Chinese village spacing. Thirds, It seems to require a study of the public space for festival. in the case of china, ancestral shrine space is center and space for festival. Fourth, It was important to seek knowledge about protection for frequent in flood plains in Korea's traditional village. Ping-shan traditional village was well-known for housing with contact water, connected channels and beautiful defense pond. Fifth, for improving Korea's traditional village scenery, we need to make various focus landscape features. Most of the visitors to Ping-shan traditional village was interested in the big and small beautiful landscapes and shelters.

Disasters that occur most frequently in rural areas are drought, flood, damages from wind and cold weather. Among these, damages from storm and flood and drought are the main disasters and recently, these are occurring on a large scale due to unusual weather conditions. Under such circumstances, projects and researches on disasters in rural areas are under way but they are mostly targeting one area or making approaches focusing on repair facilities, maintenance project of facilities in small streams, and disaster management, so there have not been enough studies on the current status of overall damaged facilities in the rural areas. Against this backdrop, through the analysis of the current status of damaged facilities due to storm and flood in rural areas, this study aims to provide base data for policies needed for disaster recovery planning and maintenance work of rural areas. For the analysis of damaged facilities due to storm and flood in rural areas, using the annual report on disasters issued by Ministry of Public Safety and Security and based on the occurrence rate of estimated damage in each city and district for the past 10 years(2004~2013), 8 areas with the highest number of occurrence and cost of damage were found from each province and target areas were selected. Then, regarding the selected target areas, the General Plan for Reducing Damages from Storm and Flood, which is the report on top-level plan for preventing disasters, was secured and the current status of damaged facilities were analyzed. After organizing the analysis of current status, the tendency of damaged facilities due to storm and flood in rural areas, the items of damaged facilities depending on the types of storm and flood damages, and risk factors were suggested. Based on this result, in order to generalize the results of follow-up researches, it is thought that disaster recovery planning and establishing the system of remodeling items necessary for maintenance work would be possible by analyzing damage investigation items recorded in additional researches on rural areas, researches on natural disasters, and recovery plan instructions and by conducting on-site investigation on the damaged villages from storm and flood in rural areas.

In this research, we reappraise saemaul project which is a leading role of rural development in a present perspectives and deduct social and political implications for rural development. For deducting problems and implications, related documents and previous researches are reviewed. Administration statistics are also gathered and analyzed for monitoring detailed projects propulsion progress and results. Samaul project is reappraised based on previous researches such as rural development, regional agricultural production system improvement, agricultural distribution system improvement, leader breeding, income improvement, and governance. Saemaul project has basically positive characteristics because of decreasing growth gap of urban and rural area by empowering cooperation of rural residents, instilling leadership, making village fund, constricting networks of government and urban area for administrative and financial assistant. In conclusion, there are implications that continues interests of most powerful sovereignty and comprehensive assistant of government are needed for overcome agricultural and rural crisis. Saemaulundong is a united and systematic approach in village level. In south korea where most of farms are small size, village or regional level assistants started in saemaulundong are still needed. In regional development, we can infer that will and ability development of participated residents are most basic and important factors for successful project propulsion in saemaul project.

The ambient mass concentration and chemical composition of the PM2.5 were determined at the highland site with 1,100 m above sea level on Jeju Island from June 2013 to November 2014. Yearly averaged mass concentration of PM2.5 was 11.97±8.63 /m3. PM2.5 concentrations were highest during the spring, while they tended to be lowest during the summer. Eight water soluble ionic species attributed 45.5% to PM2.5 mass. SO4 2-, NO3 - and NH4 + were major ions, which occupied to 27.9%, 3.7% and 12.3%, respectively. The greatest contributors to total mass concentration of water-soluble ions contained in PM2.5 were sulfate, ammonium and nitrate. These three ions accounted for 96.6% in total ions mass concentration of PM2.5. We could infer that these three secondary ions exist mostly in the form of (NH4)2SO4 and NH4NO3. Ca2+ and Mg2+ had a good relationship and with r=0.9. The molar ratio of Mg2+/Ca2+ in this study was lower than the value observed in sea water and higher than that in soil dust, indicating that these two ions originated from other sources rather than ocean and soil dust in this study.

This study investigates the concentration sudden rise in fine particle according to resuspended dust from paved roads after sudden heavy rain in Busan on August 25, 2015. The localized torrential rainfall in Busan area occurred as tropical airmass flow from the south and polar airmass flow from north merged. Orographic effect of Mt. Geumjeong enforced rainfall and it amounted to maximum 80 ㎜/hr at Dongrae and Geumjeong region in Busan. This heavy rain induced flood and landslide in Busan and the nearby areas. The sudden heavy rain moved soil and gravel from mountainous region, which deposited on paved roads and near roadside. These matters on road suspended by an automobile transit, and increased fine particle concentration of air. In addition outdoor fine particle of high concentration flowed in indoor by shoes, cloths and air circulation.

The adequacy of urban air quality monitoring networks in the largest metropolitan city, Seoul was evaluated using multivariate analysis for SO2, NO2, CO, PM10, and O3. Through cluster analysis for 5 air pollutants concentrations, existing monitoring stations are seen to be clustered mostly by geographical locations of the eight zones in Seoul. And the stations included in the same cluster are redundantly monitoring air pollutants exhibiting similar atmospheric behavior, thus it can be seen that they are being operated inefficiently. Because monitoring stations groups representing redudancy were different depending on measurement items and several pollutants are being measured at the same time in each air monitoring station, it is seemed to be not easy to integrate or transmigrate stations. But it may be proposed as follows : the redundant stations can be integrated or transmigrated based on ozone of which measures are increasing in recent years and alternatively the remaining pollutants other than the pollutant exhibiting similar atmospheric behavior with nearby station’s can be measured. So it is considered to be able to operate air quality monitoring networks effectively and economically in order to improve air quality.

본 연구에서는 GCOM-W1 위성에 탑재된 Advanced Microwave Scanning Radiometer 2 (AMSR2) 센서의 토양수분 자료를 Land Parameter Retrieval Model (LPRM) 알고리즘을 통해 전처리하여 2014년도 한반도 지점관측 자료와의 비교 분석을 수행, 위성 토양수분 자료 의 적합성을 평가하였다. 통계 분석 결과 AMSR2 X-band의 토양수분 자료는 38개의 지점관측 자료와 비교해 0.03의 평균 bias, 0.16의 평균 RMSE의 낮은 오차 수준을 보였으며, 최대상관계수는 0.67로 나타났다. 또한 AMSR2 센서의 ascending, descending 시간대별 위성 토양수분 자료 분석과 X, C1, C2-band의 주파수 영역별 위성 토양수분 자료 분석 결과, ascending overpass time 시간대와, X-band 주파수의 토양수분 자료가 지점 관측 자료와 더 좋은 상관관계를 보였다. 본 연구의 분석 결과는 한반도에서 최근 문제가 되고 있는 가뭄을 비롯한 각종 재해 분석 시 토양수분의 공간적 분포를 연구하는데 활용 될 수 있을 것으로 기대된다.

Background : Liriope platyphylla Wang et. Tang is a species of Liliaceae and its tuber is used as medicinal herbs. This medicinal plant is mainly cultivated in Cheongyang and Buyeo of Chungcheongnam-Do and Miryang of Gyeongsangnam-Do. It is necessary to establish a cultivation techniques for stable production to solve the problems that are found on farms. These farm surveys were carried out to obtain the basic data on soil environment and cultivation conditions at main producing areas of Chungnam-Do in Liriope platyphylla Wang et. Tang. Methods and Results : The surveys were investigated from 37 farmers in Cheongyang and 32 farmers in Buyeo who cultivate Liriope platyphylla Wang et. Tang. There were slightly differences in the local characteristics between Cheongyang and Buyeo. The rate of successive cropping for more than 3 years were 19% at Cheongyang and 41% in Buyeo. The reason may be due to the a small-owned field. It has grown 28% at Cheongyang and 59% at Buyeo in paddy fields. The injury by successive cropping that farmers argued were the increasing pest/disease occurrence, degradation of tuber quality and yield reduction. Crops planted after the harvest of L. platyphylla were mostly Pepper or soybean in upland. It is necessary to reduce the injury of successive cropping. The results of 112 soil analysis data were classified by 8 soil series. There are many acidic soil, lack of organic matter, excess phosphate. However, it did not analyzed the influences on the growth and yield of the crop as affected by different soil conditions. Conclusion : From the above results, it is necessary to develop cultivation techniques on the reduction of injury of successive cropping, such as cropping system, seedling transplanting cultivation, cultivation methods for good agricultural practices(GAP) and soil improvement.

This survey was conducted in order to investigate the vascular plants of Mt. Goryeong and Gaemyeong in the DMZ area of Korea. The vascular plants were collected eight times from April 2014 to October 2014 and consisted a total of 450 taxa; 91 families, 279 genera, 391 species, 4 subspecies, 49 varieties and 6 forms. The observed rare plant species as designated by Korea Forest Service were 5 taxa including Tylophora floribunda Miq., Aristolochia contorta Bunge, Viola albida Palib., etc. Endemic plant species were 6 taxa containing Aconitum pseudolaeve Nakai, Clematis brachyura Maxim., Clematis trichotoma Nakai, etc. 33 taxa were listed as specific plant species based on phytogeographical in the investigated area. 35 taxa were recorded as naturalized plants, and their naturalized rate and urban index were noted as 7.7%, and 10.9%, respectively. Of the 450 taxa listed; 186 were edible plants, 173 pasture plants, 149 medicinal plants, 51 omamental plants, 20 timber plants, 13 stain plants, 4 fiber plants, 4 industrial plants and 92 unknown resource plants.

본 연구는 제주 지역의 공립 유치원 방과후 과정 전반적인 운영 체계, 급·간식 및 안전 관리, 교직원 구성, 시설 및 행·재정 지원에 대한 교사의 인식을 조사하는데 목적이 있다. 연구에 참여한 교사는 제주도에 소재 하는 공립유치원에서 근무하는 방과후 과정 업무를 담당한 교사 89명이었다. 연구과정은 2015년 1월 5일 (월) ∼ 1월 23일(금)까지 3주간 실시하였다. 연구도구는 선행연구를 참고로 하여 연구자가 수정·보완하여 설문지를 사용하였다. 연구의 결과는 첫째, 특성화 프로그램을 가르치는 외부강사의 질 관리가 필요하다. 둘째, 급·간식 업무는 전문가의 영양(교)사가 담당해야 하며 보안시설이 완비되고 보안 담당자가 배치된 안 전관리가 필요하다. 셋째. 방과후 과정의 인력 배치가 확대 되어야 한다. 넷째, 방과후 과정의 예산이 확대 와 행정 실무 인력의 배치가 필요하다.. 이러한 연구 결과를 통해 유치원 교사의 방과후 과정 업무를 지원 하는 교육청의 행·재정 지원이 마련되어야 할 것이다.