• Title/Summary/Keyword: site selection

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Analysis of Suitable Site for Farmastead using GIS (지형공간정보체계를 적용한 농장의 적지분석에 관한 연구)

  • Rhee, Shin-Ho;Oh, Moo-Young;Choi, Jin-Young;Kim, Han-Joong
    • Journal of Korean Society for Geospatial Information Science
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    • v.3 no.2 s.6
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    • pp.173-181
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    • 1995
  • Geospatial analysis method was applied for classification of suitable site for farmstead. Typical urban suburb and rural area was selected and analyzed, that is Cheongwon County in Chungbuk Province, South Korea. In this study, suitable site for the farmstead was classified by five grade in the other site except suitable area for paddy field, upland, settlement and Green Belt, regulated area for development around the city. Digital Elevation Model(DEM), detailed soil map, administration boundary map, stream map and Green Belt map where digitized and scoring tables were composed with scoring standard. In site verification, Geospatial Information System(GSIS) was quite good tools for suitable site classifying for farmstead causing farm household income increasing, environmental impact decreasing and scientific site selection.

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Mechanisms of herbicide resistance in weeds

  • Bo, Aung Bo;Won, Ok Jae;Sin, Hun Tak;Lee, Jeung Joo;Park, Kee Woong
    • Korean Journal of Agricultural Science
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    • v.44 no.1
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    • pp.1-15
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    • 2017
  • In major field crops, synthetic herbicides have been used to control weeds worldwide. Globally, herbicide resistance in weeds should be minimized because it is a major limiting factor for food security. Cross resistance can occur with herbicides within the same or in different herbicide families and with the same or different sites of action. Multiple resistance refers to evolved mechanisms of resistance to more than one herbicide (e.g., resistance to both ALS-inhibitors and ACCase-inhibitors) and this resistance was brought about by separate selection processes. Target site resistance could occur from changes at the biochemical site of action of one herbicide. Non target site resistance occurs through mechanisms which reduce the number of herbicide molecules that reach the herbicide target site. There are currently 480 unique cases (species ${\times}$ site of action) of herbicide resistance globally in 252 plant species (145 dicots and 105 monocots). To date, resistance in weeds has been reported to 161 different herbicides, involving 23 of the 26 known herbicide sites of action. Finally, it can be concluded that we can protect crops associated to herbicide resistant weeds by applications of biochemical, genetic and crop control strategies.

Probabilistic real-time updating for geotechnical properties evaluation

  • Ng, Iok-Tong;Yuen, Ka-Veng;Dong, Le
    • Structural Engineering and Mechanics
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    • v.54 no.2
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    • pp.363-378
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    • 2015
  • Estimation of geotechnical properties is an essential but challenging task since they are major components governing the safety and reliability of the entire structural system. However, due to time and budget constraints, reliable geotechnical properties estimation using traditional site characterization approach is difficult. In view of this, an alternative efficient and cost effective approach to address the overall uncertainty is necessary to facilitate an economical, safe and reliable geotechnical design. In this paper a probabilistic approach is proposed for real-time updating by incorporating new geotechnical information from the underlying project site. The updated model obtained from the proposed method is advantageous because it incorporates information from both existing database and the site of concern. An application using real data from a site in Hong Kong will be presented to demonstrate the proposed method.

Study on Site Selection of A/R CDM Using LiDAR Data (LiDAR 자료를 이용한 A/R CDM 대상지 선정에 관한 연구)

  • Guishan, Cui;Park, Taejin;Lee, Woo-Kyun;Lee, Jongyeol;Kwak, Doo-Ahn;Kwak, Hanbin
    • Korean Journal of Remote Sensing
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    • v.28 no.5
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    • pp.587-596
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    • 2012
  • Verifying about eligibility of targeted site is necessary for execute Afforestation and Reforestation Clean Development Mechanism (A/R CDM) project which is followed by system of Kyoto protocol. The site have to be identified by which could not be in conformity with definition of forest. This study tried to propose a technology of classify for site selection of A/R CDM. We chose several parts of Yangpyeng as study area and applied LiDAR data and remotely sensed imagery for considering about tree height, degree of crown closure, and land area which 3 factors for identify forest. LiDAR data was used for offset the shortage of remotely sensed imagery that cannot perfectly determine the forest definition due to absence of 3-dimentional information, but can be obtained from LiDAR. Considering tree height, degree of crown closure, and land area simultaneously by moving window, classified fields to forest and non forest based on pixel size. As a result, 124.06 ha for suitable to doing plantation and approximately 357.02 ha are in negative. Technology that applied for analyzing will provide fundamental methodology not only site selection for A/R CDM, but will be utilized in other Kyoto protocol.

Optimal Site Selection of Carbon Storage Facility using Satellite Images and GIS (위성영상과 GIS를 활용한 CO2 지중저장 후보지 선정)

  • Hong, Mi-Seon;Sohn, Hong-Gyoo;Jung, Jae-Hoon;Cho, Hyung-Sig;Han, Soo-Hee
    • Korean Journal of Remote Sensing
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    • v.27 no.1
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    • pp.43-49
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    • 2011
  • In the face of growing concern about global warming, increasing attention has been focused on the reduction of carbon dioxide emissions. One method to mitigating the release of carbon dioxide is Carbon Capture and Storage (CCS). CCS includes separation of carbon dioxide from industrial emission in plants, transport to a storage site, and long-term isolation in underground. It is necessary to conduct analyses on optimal site selection, surface monitoring, and additional effects by the construction of CCS facility in Gyeongsang basin, Korea. For the optimal site selection, necessary data; geological map, landcover map, digital elevation model, and slope map, were prepared, and a weighted overlay analysis was performed. Then, surface monitoring was performed using high resolution satellite image. As a result, the candidate region was selected inside Gyeongnam for carbon storage. Finally, the related regulations about CCS facility were collected and analyzed for legal question of selected site.

A Study on the Land Suitability Analysis Based on Site Selection Variables using Macro Language (매크로 언어를 이용한 입지인자 변수조정에 따른 토지적합성 분석에 관한 연구)

  • Yi, Gi-Chul
    • Journal of the Korean Association of Geographic Information Studies
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    • v.6 no.1
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    • pp.59-77
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    • 2003
  • This study is to validate the use of macro language for the land suitability analysis aiming to help to resolve land use conflicts. The silver-town suitability analysis is conducted on the Geejang Gun, Busan Metropolitan city. Such digital maps as terrain, road, facility, and water body were created for various cartographic models. A cartographic model identified the best suitable areas for silver-town development based on the such site selection variables as a distance to facility and road, slope and aspect of terrain, land use etc. Then, the other cartographic model identified the most favorable site among the candidate sites based on the comparison of the aspect of proximity, usage and environmental quality. Macro language was used for these modeling process and was used for the manipulation of all these spatial variables used in the models to resolve land use conflicts relating to the decision making process of the final site selection. This study will improve the effectiveness and rationality of the traditional site suitability analysis.

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Suitable Site Prediction of Erosion Control Dam by Sediment (산지사면에 있어서 퇴사량에 의한 사방댐의 시공적지 예측)

  • Ma, Ho-Seop;Jeong, Won-Ok
    • Journal of Korean Society of Forest Science
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    • v.96 no.3
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    • pp.300-306
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    • 2007
  • This study was carried out to analyze the characteristics of forest environmental and stream morphological factors by using the quantification theory (I) for prediction of the suitable dam site. The results obtained from this study were summarized as follows; The selection of suitable site for erosion control dam was estimated by normalized score of each category. And the prediction method of suitable site for erosion control dam divided into class I (Very suitable site), II (Suitable site), and III (Poor suitable site) for the convenience of use. In conclusion, if we select the suitable site for construction of erosion control dam for disaster prevention, we could save the loss of tremendous budget, avoid the poor suitable site due to subjective judgment, and it would promote the functions of erosion control dam.

The Use of the Internal Mammary Vessel Perforator as a Recipient Vessel for Free TRAM Breast Reconstruction (유리 횡복직근피판술을 이용한 유방의 재건에서 수혜부 혈관으로 내유방혈관 천공지의 사용)

  • Park, Myong-Chul;Lee, Jung-Hoon;Chung, Jae-Ho;Lee, Sung-Hun
    • Archives of Reconstructive Microsurgery
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    • v.10 no.2
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    • pp.105-110
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    • 2001
  • Breast reconstruction is an aesthetically critical procedure and should be peformed to match the opposite breast in shape, contour, and position. Many methods were introduced to reconstruct the breast with autogenous tissue. But, free tissue transfer for breast reconstruction has become common method. The transverse rectus abdominis myocutaneous flap technique has been a widely accepted method of breast reconstruction after mastectomy, since the first introduction of free abdominoplasty flap in 1979. In breast reconstruction with a free flap the selection of suitable recipient vessels remains one of the most critical decision for surgeon. The most common recipient site for free flap breast reconstruction is the axillar system. But, the use of the axillary system as a recipient site limits flap movement and flexibility in breast shaping. The use of internal mammary vessels as a recipient site be able to achieve ideal breast symmetry, but that technique require the rib resection. The selection of suitable recipient vessels is most important for successful free tissue transfer. We have performed breast reconstruction with TRAM flaps anastomozed to the internal mammary vessel perforator. We came to the conclusion that this vessel perforator is useful as a recipient site in cases of immediate breast reconstruction with free TRAM flap.

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Large Auricular Chondrocutaneous Composite Graft for Nasal Alar and Columellar Reconstruction

  • Son, Daegu;Kwak, Minho;Yun, Sangho;Yeo, Hyeonjung;Kim, Junhyung;Han, Kihwan
    • Archives of Plastic Surgery
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    • v.39 no.4
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    • pp.323-328
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    • 2012
  • Background Among the various methods for correcting nasal deformity, the composite graft is suitable for the inner and outer reconstruction of the nose in a single stage. In this article, we present our technique for reconstructing the ala and columella using the auricular chondrocutaneous composite graft. Methods From 2004 to 2011, 15 cases of alar and 2 cases of columellar reconstruction employing the chondrocutaneous composite graft were studied, all followed up for 3 to 24 months (average, 13.5 months). All of the patients were reviewed retrospectively for the demographics, graft size, selection of the donor site and outcomes including morbidity and complications. Results The reasons for the deformity were burn scar (n=7), traumatic scar (n=4), smallpox scar (n=4), basal cell carcinoma defect (n=1), and scar contracture (n=1) from implant induced infection. In 5 cases of nostril stricture and 6 cases of alar defect and notching, composite grafts from the helix were used ($8.9{\times}12.5$ mm). In 4 cases of retracted ala, grafts from the posterior surface of the concha were matched ($5{\times}15$ mm). For the reconstruction of the columella, we harvested the graft from the posterior scapha ($9{\times}13.5$ mm). Except one case with partial necrosis and delayed healing due to smoking, the grafts were successful in all of the cases and there was no deformity of the donor site. Conclusions An alar and columellar defect can be reconstructed successfully with a relatively large composite graft without donor site morbidity. The selection of the donor site should be individualized according to the 3-dimensional configuration of the defect.

The Selection of House Site and Its Architectural Expression in the Chosun Dynasty : A Case Study of Confucianist Lee-sik's Taegpoongdang in Yangpyung, Kyungki-do (조선 중기 유가(儒家)의 세계관이 반영된 집터 선정과 건축적 표현 -양평군 소재 택당 이식의 택풍당을 중심으로-)

  • Sung, Dong-Hwan;Cho, In-Chul
    • Journal of the Korean association of regional geographers
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    • v.11 no.3
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    • pp.367-380
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    • 2005
  • This paper aims to investigate the characteristics of house site selection and its expression of building through manuscript of Taegdanggip which was authored by Lee-sik in the middle of Chosun dynasty. Its results are summarized in the following. Firstly, as a Confucianist, Lee-sik selected his ancestor's grave site as well as his house site by means of divination sign. And then he interpreted the characteristics of the location from feng-shui perspective. Secondly, he built Taepoongdang(literally 'pond and wind house') as his house for retirement based on a trigram from the Book of Changes. He reflected the divination sign in consturcting his house Taekpoongdang. Finally, the location of Taekpoongdang and Baekagog village was well suitable to feng-shui theory.

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