• 제목/요약/키워드: Talus area

검색결과 43건 처리시간 0.024초

한반도 서남부 암설사면지형의 분포가능성 예측 및 검증 (Prediction and Verification of Distribution Potential of the Debris Landforms in the Southwest Region of the Korean Peninsula)

  • 이성호;장동호
    • 한국지형학회지
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    • 제27권2호
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    • pp.1-17
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    • 2020
  • This study evaluated a debris landform distribution potential area map in the southwest region of the Korean peninsula. A GIS spatial integration technique and logistic regression method were used to produce a distribution potential area map. Seven topographic and environmental factors were considered for analysis and 28 different data set were combined and used to get most effective results. Moreover, in an accuracy assessment, the extracted results of the Distribution Potential area were evaluated by conducting a cross-validation module. Block stream showed the highest accuracy in the combination No. 6, and that DEM (digital elevation model) and TWI (topographic wetness index) have relatively high influences on the production of the Block stream Distribution Potential area map. Talus showed the highest accuracy in the combination No. 13. We also found that slope, TWI and geology have relatively high influences on the production of the Talus Distribution Potential area map. In addition, fieldwork confirmed the accuracy of the input data that were used in this study, and the slope and geology were also similar. It was also determined that these input data were relatively accurate. In the case of angularity, the block stream was composed of sub-rounded and sub-angular systems and Talus showed differences according to the terrain formation. Although the results of the rebound strain measurement using a Schmidt's hammer did not shown any difference in topographic conditions, it is determined that the rebound strain results reflected the underlying geological setting.

의성 빙계계곡 일대의 지형적 특성 -테일러스를 중심으로- (Geomorphic Features of Bing-gye Valley Area(Kyongbuk Province, South Korea) -Mainly about Talus-)

  • 전영권
    • 한국지역지리학회지
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    • 제4권2호
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    • pp.49-64
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    • 1998
  • 연구지역에서 발달하는 테일러스들은 테일러스의 일반적인 특성을 잘 반영하고 있다. 우리나라에 분포하는 테일러스가 보통 rock fall talus이듯이 본 연구지역의 테일러스도 동일한 유형으로 판단된다. 또 테일러스의 사면형태, 형성시기 발달과정, 미지형적 특성 등은 지금까지 발표된 여러 연구결과들과 거의 일치하고 있다. 그러나 인접한 테일러스간의 경계 부분에서는 암설입경의 상대적 크기에 따라 약간의 지형적 차이점을 인식할 수 있었다. 특히 본 연구에서는 테일러스 암설 최적층의 내부구조를 국내 처음으로 확인하여 3가지의 뚜렷한 층위를 구분할 수 있었다. 즉, 암설로만 구성된 표층과 암실과 세립물질(실트질 모래)이 혼재된 중간층 그리고 과거의 토양층인 기저층 등으로 구분된다. 또 암설 퇴적층에 대한 내부구조 인식은 테일러스 형성 당시로 부터 현재까지의 기후환경과 암설의 퇴적양상을 밝히는데 매우 중요하며 앞으로 이 분야의 연구에 큰 도움을 줄 것으로 생각된다. 한편 국지적으로 특수기상이 나타나는 빙혈이 있는 빙계계곡의 경우 그것의 형성에는 단층작용의 역할이 중요한 것으로 판단된다. 그러나 이 곳을 흐르는 쌍계천이 유독 빙계계곡에서만 협곡(빙계계곡의 폭은 주변 곡쪽의 $1/8{\sim}1/10$정도임)을 형성하는 이유에 대해서 정곡의 가능성을 제시했지만 입증할 만한 자료가 없는 것이 유감이다.

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『상한론(傷寒論)』 감초부자탕(甘草附子湯)으로 호전된 거골 박리성 골연골염 증례 1례 (A case of osteochondritis dissecans of the talus improved by Shanghanlun Gamchobuja-tang)

  • 최재영;이성준;이숭인
    • 대한상한금궤의학회지
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    • 제15권1호
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    • pp.161-182
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    • 2023
  • Objective: This is the result of a study on patients with osteochondritis dissecans (OCD) of the talus whose pain was improved by Gamchobuja-tang (GBT). Methods: The patient took GBT for 46 days. We observed the progress of symptoms, patient compliances and side effects. Quality of life related to pain was quantified through the SF-36 and AQoL-6D questionnaires. The degree of pain in the talus and ankle areas was quantified using VAS and observed through the symptoms and frequency complained of by the patient. Results: According to the DPIDS, the patient was diagnosed with the 175 provision in Taeyangbing chestbind (大陽病 結胸). As a result, SF-36 score increased from 36 points to 74 points, and the AQoL-6D score increased from 74 points to 104 points. The visual analogue scale (VAS) of ankle pain lowered from 9 to 2. The number of days with VAS levels 1 also increased. Conclusions: Gamchobuja-tang is effective in reducing pain in the talus area caused by osteochondritis dissecans..

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공간통합 모델을 적용한 암괴류 및 애추 지형 분포가능지 추출 (Extraction of Potential Area for Block Stream and Talus Using Spatial Integration Model)

  • 이성호;장동호
    • 한국지형학회지
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    • 제26권2호
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    • pp.1-14
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    • 2019
  • This study analyzed the relativity between block stream and talus distributions by employing a likelihood ratio approach. Possible distribution sites for each debris slope landform were extracted by applying a spatial integration model, in which we combined fuzzy set model, Bayesian predictive model, and logistic regression model. Moreover, to verify model performance, a success rate curve was prepared by cross-validation. The results showed that elevation, slope, curvature, topographic wetness index, geology, soil drainage, and soil depth were closely related to the debris slope landform sites. In addition, all spatial integration models displayed an accuracy of over 90%. The accuracy of the distribution potential area map of the block stream was highest in the logistic regression model (93.79%). Eventually, the accuracy of the distribution potential area map of the talus was also highest in the logistic regression model (97.02%). We expect that the present results will provide essential data and propose methodologies to improve the performance of efficient and systematic micro-landform studies. Moreover, our research will potentially help to enhance field research and topographic resource management.

거골 골연골병변: 하지 정렬을 교정하면 거골 골연골병변이 좋아질까? (If the Lower Extremity Alignment is Corrected, Will Osteochondral Lesions of the Talus Improve?)

  • 김유미;김경일;한별
    • 대한족부족관절학회지
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    • 제24권2호
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    • pp.42-47
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    • 2020
  • Increased loading in a localized area is a possible cause of pain-related osteochondral lesions of the talus (OLT), but the reported effects of realignment surgery for OLT have been anecdotal. Moreover, no report of realignment surgery for OLT could be found in the English literature. This study reviewed previous articles on lower extremity alignment and OLT to determine if OLT can be treated with realignment surgery.

후족부 내시경술을 이용한 거골내 결절종의 치료 - 증례 보고 - (Treatment of Intraosseous Ganglion of the Talus with Hindfoot Endoscopy - A Case Report -)

  • 김성윤;이우천
    • 대한관절경학회지
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    • 제16권1호
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    • pp.52-55
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    • 2012
  • 골내 결절종은 일반적으로 관절에 인접한 골단이나 연골하골에 위치하며, 낭종부위를 개방한 후 소파술 단독 또는 소파술 후 골이식술을 병용하여 치료한다. 저자들은 거골의 후방에 있는 골내 결절종의 치료로 후외측 및 후내측 삽입구를 통한 내시경적 낭종 내 소파술 및 골이식술을 시행하여 양호한 결과를 얻었기에 문헌 고찰과 함께 보고하는 바이다.

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The First Finding of the Lichen Solorina saccata at an Algific Talus Slope in Korea

  • Park, Jung Shin;Kim, Dong-Kap;Kim, Chang Sun;Oh, Seunghwan;Kim, Kwang-Hyung;Oh, Soon-Ok
    • Mycobiology
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    • 제48권4호
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    • pp.276-287
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    • 2020
  • An algific talus slope is composed of broken rocks with vents connected to an ice cave, releasing cool air in summer and relatively warmer air in winter to maintain a more stable microclimate all year round. Such geological features create a very unusual and delicate ecosystem. Although there are around 25 major algific talus slopes in Korea, lichen ecology of these areas had not been investigated to date. In this study, we report the first exploration of lichen diversity and ecology at an algific talus slope, Jangyeol-ri, in Korea. A total of 37 specimens were collected over 2017-2018. Morphological and sequencing analysis revealed 27 species belonging to 18 genera present in the area. Of particular interest among these species was Solorina saccata, as it has previously not been reported in Korea and most members of genus Solorina are known to inhabit alpine regions of the Northern Hemisphere. We provide here a taxonomic key for S. saccata alongside molecular phylogenetic analyses and prediction of potential habitats in South Korea. Furthermore, regions in South Korea potentially suitable for Solorina spp. were predicted based on climatic features of known habitats around the globe. Our results showed that the suitable areas are mostly at high altitudes in mountainous areas where the annual temperature range does not exceed 26.6 ℃. Further survey of other environmental conditions determining the suitability of Solorina spp. should lead to a more precise prediction of suitable habitats and trace the origin of Solorina spp. in Korea.

매리 땅밀림형 산사태(山沙汰)의 발생특성(發生特性)에 관한 분석(分析) (I) - 지형(地形) 및 지질특성(地質特性)을 중심(中心)으로 - (Analysis on the Characteristics of the Landslide in Maeri (I) - With a Special Reference on Geo-Topographical Characteristics -)

  • 박재현;최경;배종순;마호섭;이종학
    • 한국산림과학회지
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    • 제94권3호통권160호
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    • pp.129-134
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    • 2005
  • 이 연구는 김해시 상동면 매리 산사태지 1.5 ha에서의 발생특성 및 원인을 밝히기 위하여 수행한 것으로써 지형 및 지질적인 요인을 조사 분석하였다. 조사대상지의 모암은 섬록암이며, 상부사면 및 주변은 마산암으로 이루어져 있고, 너덜(Talus)이 산재하고 있는 것으로 나타났다. 이 산사태는 2004년 4월 19일에 발생되었으며, 산사태 발생 전 3일 동안의 연속강우량은 74 mm이었으나, 강우가 직접적인 영향이라기보다는 간접적인 영향을 미친 것으로 판단된다. 또한, 이 지역 땅밀림 산사태의 직접적인 원인은 깊게 형성된 붕적토층과 풍화토층 등 지질 지형적인 특성과 사면하단부 절취라 판단된다. 이 지역의 산사태 유형은 지하수에 의한 요(凹)지형 붕적토 땅밀림형 산사태에 해당한다.

Petrological Properties of Flat Stones from the Obongsan Mountain Quarry Used for Flooring in Ondol

  • Kim, Jae Hwan;Han, Min Su
    • 보존과학회지
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    • 제37권4호
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    • pp.380-390
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    • 2021
  • The purpose of this study is to scientifically analyze the rocks of the Obongsan Mountain in Boseong, Jeollanam-do, which contains the largest extant quarry of Gudlejang (flat stone for heating) in Korea, and to scientifically determine the petrological characteristics of the area and the reasons for its use as a quarry. The rocks in the quarry are composed of light-green lapilli tuff, containing various types of lithic fragments and crystalline fragments in a vitreous matrix consisting of the fine feldspar crystals. The main constituent minerals were identified as quartz, plagioclase, mica, chlorite and opaque minerals. When the major element compositions were plotted on a Na2O+K2O versus SiO2 diagram, all samples were situated in the same compositional area as rhyolite. In addition, the result of magnetic susceptibility measurement also showed a similar range of values, of 1.30 ~ 4.85 (×10-3 SI), indicating that samples were fractionated from the same magma. Both rock types showed similar apparent specific gravity values of 2.32 ~ 2.60. In particular, plate-shaped joints are well developed in the Obongsan Mountain area, and many areas exhibit talus terrain. In conclusion, the rocks of this area is interpreted to used for a site of Gudlejang quarrying, because the rocks were easily obtainable due to the terrain characteristics, and their petrological properties made them suitable for use as Gudlejang stone.

진성 적혈구 증다증 환자에서 발생한 발목뼈 결핵 1 예 (A Case of Tarsal Bone Tuberculosis in a Patient with Polycythemia Vera)

  • 고성애;정선영;손세훈;김동근;박성우;허지안;이경희;김민경;현명수
    • Journal of Yeungnam Medical Science
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    • 제26권1호
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    • pp.44-48
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    • 2009
  • Talus tuberculosis is a rare disease, even in an endemic tuberculosis area. In reviews of the worldwide literature, only 18 cases of talus tuberculosis have been reported. Recently, we experienced a case of a 70-year-old polycythemia vera patient with right metatarsopharyngeal joint pain for 2 months duration who was diagnosed with talus tuberculosis with prostate involvement. Tuberculosis should be considered as one of the causes of monoarticulitis, especially in countries, where the disease is endemic. Additionally, we highly recommend taking a biopsy of the site of suspected infection because an early diagnosis is the key to successful treatment.

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