• Journal of Korean Society of Forest Science
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• v.82 no.4
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• pp.381-395
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• 1993

To investigate the procedure of natural plant succession on cutting slope in the forest roads, considered elapsed years and regional distribution, data were collected from natural and artificial treatment slope. And to elucidate the effective methods of revegetation on forest road slope, each seeding experiments carried out with 4 species(Themeda triandra, Lysimachia clethroides, Artemisia princeps and Lespedeza cyrtobotrya). The pioneer species on cutting slope in the forest road were Pinus densiflora, Lespedeza bicolor, Rhubus crataegiflora etc. in wood species, and Arundinella spp., Lysimachia barystachys, Artemisia spp. etc. in herb species. In process of year, plant coverage was increased and average of plant coverage was 30% in road slope which elapsed 5 years after construction. On short slope less than 3m, broadcast seeding method with straw mulch was more effective way than the other methods. Slope revegation work should be adapted with forest road construction work and revegetation work with native species will be effective.

• Korean Journal of Agricultural Science
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• v.15 no.2
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• pp.123-131
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• 1988

This study was done to investigate the interplanting effects of corn, when a corn hybrid with tillers (IK derivaties) was interplanted with a corn hybrid without tillers(Jinjoo Ok). The interplanting ratios of two hybrids, IK and Jinjoo Ok, were 1 to 1, 1 to 2, 1 to 3, 2 to 1, and 3 to 1. The interp1anting effects were compared with monoculture for major agronomic characteristics. 1. The plant height was increased when interplanted regardless of the interplanting ratios of the two hybrids. The general growth of IK hybrid was a little hindered when the interplanting ratio of Jinjoo Ok hybrid increased. 2. The number of tillers produced by the IK hybrid increased until 40 days after emergence and appeared to increase as the interplanting ratio of IK hybrid increased. 3. When monocultured, the fresh weight of IK hybrid per 10a was 8,096kg and and 6,677kg at silking and dough stages, respectively and these were 77%, 53% over the fresh weight of Jinjoo Ok at the sarne stages. When IK and Jinjoo Ok hybrids were interplanted in 1 to 1 ratio, the fresh weight of IK was 20% higher than that of Jinjoo Ok monocultured. 4. The highest grain yield per 10a was obtained from the Jinjoo Ok hybrid monocultured and the yield was 434kg. Even the interplanting ratios between IK and Jinjoo Ok were 1 to 1 and 1 to 3, the grain yield of Jinjoo Ok was 16% and 13% over the IK, respectively. 5. Root and stalk lodging of IK hybrid was 29% when monocultured and seemed to increase as the interplanting ratio of Jinjoo Ok increased. The lowest lodging was found when the interplanting ratio of IK and Jinjoo Ok was 1 to 1. 6. Stem diameter of IK hybrid was also decreased as the interplanting ratio of Jinjoo Ok increased. The ear height of IK was lowered as the interplanting ratio of IK was increased. The two hybrids tested seemed to have tolerance to the black streaked dwarf virus(BSDV).

• Journal of The Korean Society of Grassland and Forage Science
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• v.38 no.4
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• pp.310-319
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• 2018

The southern type grasses announced for the test were the Bermudagrass cultivars (Giant, Cheyenne, Mohawk, Panchero Frio, Common and Tifton 85) and the Bahiagrass cultivars (TifQuik, Tifton 9), and the changes in the productivity and nutrient content were surveyed in Jeju area (450m altitude). The different cultivars were sowed by broadcasting or drill seeding method, and Tifton 85 was transplanted from sprigs. The fresh and dry matter yield showed varying significant differences for different cultivars (p<0.05). The fresh yields of Tifton 85, TifQuik and Tifton 9 were excellent, compared to the other cultivars, and for the dry matter yield, Tifton 85 and Tifton 9 were excellent when compared to the other cultivars. Crude protein content showed significant differences among different cultivars (p<0.05). Cheyenne, Mohawk, Panchero Frio, and Common showed differences in the crude protein content by sowing method and harvest time (p<0.05). The different cultivars showed differences in the crude fiber content (p<0.05), and Tifton 9 registered significantly high content and Mohawk and Tifton 85 showed significant crude fiber content by harvest time (p<0.05). According to these results, the southern type grass cultivars showed big differences in the regenerative capacity against damage from frost, productivity, and nutrient content, so they need to be chosen according to the purposes, and to increase their usage, their evaluation needs to be conducted at various altitudes.

• Radiation Oncology Journal
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• v.1 no.1
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• pp.61-67
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• 1983

Two cases of primary malignant lymphoma of the brain and six cases of secondary CNS lymphoma seen at Yonsei cancer center, radiotherapy department for recent 4 years are presented. Primary lymphomas revealed single tumor mass on corpus callosum area and secondary lymphoma were intracranial (3 cases) or leptomeningeal type (3 cases). Histology of primary lymphoma were reticulum cell sarcoma and secondary lymphomas were either diffuse histiocytic or diffuse poorly differentiated lymphocytic lymphoma. All patients showed good response to radiation. Two patients with primary CNS lymphoma and two of six secondary CNS lymphoma are alive after radiotherapy (34, 31, 26, 12 months). But the prognosis of secondary CNS lymphoma is grave, because of progressive systemic disease. Incidence, risk factors, diagnosis and therapeutic management of CNS involvement are also discussed.

• The Journal of the Korean dental association
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• v.22 no.11 s.186
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• pp.973-978
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• 1984

The authors observed a case of Burkitt's lymphoma, occurred in the mandible, of 6-year-old female patient who admitted to the Department of Oral Radiology, Kyung Hee University Medical Center. The serial radiograms, clinical findings, and microscopid findings had been taken and obtained following results: 1. In serial radiograms, invasive and infiltrative bone destruction in the both mandibular body region was observed. Perforation and erosion of cortical plate of the mandibular angle area and loss of alveolar lamina dura in involved teeth were also noticed. 2. In microscopic findings, a monotous overgrowth of undifferentiated monomorphic lymphoreticular cells found. Macrophages with and abundant clear cytoplasm are usually found scattered uniformly throughout the tumor, producing the very characteristic 'starry-sky' appearance.

• The Korean Journal of Pain
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• v.10 no.2
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• pp.258-261
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• 1997

Back pain with sciatica is a common clinical syndrome that may be the expression of an uncommon pathological process. We describe a case of retroperitoneal lymphoma mimicking herniated lumbar disc. 62 year old male patient with a clinical picture of sciatica as a first manifestation of retroperitoneal lymphoma. His pain was not response to conventional therapy, and progressively worsened. We reevaluated him and found huge retroperitoneal lymphoma in his pelvic cavity. So we discuss how to identify the few who had extra attention. It is important to rule out occult pathology in patient with an atypical presentation. In assessing a patient with a low back pain, accurate evaluation require a logical, step by step method.

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2001.06a
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• pp.101-104
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• 2001

작물 발육단계의 정확한 진단은 그 시기의 생리적 반응을 이해하고 정확하고 정밀한 생육관리를 위해서 절대적으로 필요한 요소이다. 지금까지 벼의 발육단계 예측을 위한 모델에는 GDD를 이용하는 방법(이, 1972), 한 단계의 발육을 완료하는데 걸리는 기간(t)과 이 기간중의 평균기온, 평균일장의 단순회귀 또는 중회귀를 구하는 방법(Gao et al, 1989; Yin et al, 1995; 임, 1982), 평균발육속도(1/t)를 이 기간중의 평균온도와 평균일장의 함수로 표현해서 이를 적산하여 1이 되었을 때를 발육완료일로 나타내는 방법(이, 1987; 신 등, 2000), 발육기간이 시계열자료를 모두 고려하여 함수를 이용하지 않는 non-parametric 방법(이, 1991) 등이 있다.(중략)

• Proceedings of the Korean Society of Crop Science Conference
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• 2019.09a
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• pp.26-26
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• 2019

• Journal of the Korean Society of Radiology
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• v.83 no.2
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• pp.406-413
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• 2022

Malignant tenosynovial giant cell tumor (TsGCT) is a rare disease that can arise as a recurrent lesion or co-exist with a benign TsGCT lesion. Here we report a rare case of malignant TsGCT in a 73-year-old male with a history of lymphoma. The tumor appeared as a superficial soft-tissue mass in the subcutaneous fat tissue of the left knee.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2023.04a
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• pp.70-70
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• 2023

유자의 번식방법은 세 가지로 알려져 있다. 유자 대목의 유자를 접목하는 방법과 탱자 대목의 유자를 접목하는 방법, 유자의 종자를 파종하여 유자나무를 번식하는 방법 등이 있다. 이러한 번식 방법 가운데 가장 많이 활용되고 있는 유자의 번식 방법은 탱자 나무 대목에 유자를 접목하여 생산하는 방법이다. 실제로 유자의 생산물을 비교해보면 과일의 크기는 유자나무에 유자를 접목시킨 유자나무에서 대체적으로 과일이 크고 색깔도 진노랑색이다. 과일이 제일 작은 번식 방법은 유자 종자를 파종하여 유자를 생산하는 방법이다. 또한, 유자 접목 방법에 따른 유자의 생산 연령은 실생번식보다 접목방법이 훨씬 빠르다. 즉, 과일의 형태와 색깔, 향 등이 번식 방법에 따라서 다소 차이를 나타내고 있다. 따라서, 이러한 번식 방법에 따른 유자의 과육으로부터 항균 활성에 차이를 분석하고자 본 실험을 실시하였다. 3종의 항균실험을 실시한 결과 대부분의 균 종류의 결과를 보면 실생 번식에서 다소 양호한 항균활성을 나타내었다. 유자 대목의 유자를 접목한 유자의 과육도 비교적 항균활성이 좋게 나타났다. 탱자 대목에 유자를 접목하여 얻어진 유자 과육의 항균 활성은 다른 번식 방법에 비하여 다소 미흡한 항균 활성 결과를 나타내었다. 따라서, 이러한 결과들로 미루어볼 때 번식 방법에 따른 유자 과육의 항균 활성은 균 종류별 차이가 나는 것으로 판단되었다. 따라서, 이러한 결과들로 미루어 볼 때 향후 과피의 항균 활성을 조사한다면 더 좋은 결과를 확보할 수 있을 것으로 생각된다