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종 분포 모형을 이용한 구상나무림의 지속 및 쇠퇴에 관한 연구 - 전라남도 광양시 백운산을 중심으로 -
조선희 ( Seon Hee Cho ),박종영 ( Jong Young Park ),박정호 ( Jeong Ho Park ),이양근 ( Yang Geun Lee ),문이만 ( Lee Man Mun ),강상호 ( Sang Ho Kang ),김광현 ( Gwang Hyun Kim ),윤종국 ( Jong Guk Yun ) 한국산림과학회 2015 한국산림과학회지 Vol.104 No.3
The present study investigated the habitats of Korean fir trees (Abies koreana E. H. Wilson) on Mt. Baekwun (Baekwun-san), determined the current distribution, quantified the contribution of biological and nonbiological environmental factors affecting the distribution, derived actual and potential habitats, presented a plan for the establishment of protected areas, applied RCP 8.5 climate change scenario to analyze the effects of climate change on the future distribution of Korean fir trees, and predicted future potential habitats. According to the results of the study, 3,325 Korean fir trees (DBH >= 2.5 cm) inhabited Mt. Baekwun, and their distribution area was approximately 150 ha. Populations of Korean fir trees were confirmed to exist at an altitude of 900 m above sea level and were distributed up to 1,200 m. Based on potential distribution, areas appropriate for habitation by Korean fir trees were analyzed to be 450 ha, three times the current distribution area, with a focus on Sang Peak (Sang-bong), Eokbul Peak (Eokbul-bong), Ddari Peak (Ddari-bong), and Dosol Peak (Dosol-bong). The forest stands near Sang Peak, the main peak, were evaluated as those with the most appropriate potential for the habitation of Korean fir trees, and populations of the trees tended to prefer the northern slope rather than the southern slope. When climate change scenario RCP 8.5 was applied and future potential distribution was analyzed, the habitats were expected to decrease in area to 20 ha by 2050, with a focus on Sang Peak, and areas appropriate for habitation were predicted not to exist by 2080. Judging from such results, as global warming accelerates, the habitats of Korean fir trees are clearly expected to move from lowlands to highlands.
P081 : A clinical study of malignant skin tumors excised simply before definite diagnosis
( Sung Min Park ),( Gun Wook Kim ),( Hyun Ho Cho ),( Won Jeong Kim ),( Je Ho Mun ),( Margaret Song ),( Hyun Chang Ko ),( Byung Soo Kim ),( Moon Bum Kim ),( Hoon Soo Kim ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2
Background: Although some skin tumor have distinct clinical feature, biopsy is essential for confirming the diagnosis in most cases of skin tumor. Furthermore, appropriate treatment method is determined according to the diagnosis. Encountering patients who visit after simple excision for skin tumor before definite diagnosis, clinicians experience difficulties in further evaluation and management. Objectives: To evaluate the characteristics of simply excised malignant skin tumor before confirming the diagnosis. Methods: Retrospective study was conducted by reviewing the record of patients visited after excision of malignant skin tumor without confirming diagnosis in other hospital. We investigated the previous and final diagnosis, completeness of excision, recurrence, and management. Results: Twenty-four patients were enrolled in this study. Most patients had undergone an operation at surgical hospital. Although basal cell carcinoma and squamous cell carcinoma were common, there were various tumors including myxofibrosarcoma, mucinous eccrine carcinoma, sebaceous carcinoma, porocarcinoma, and so on. Re-operation was required in most cases. Conclusion: Our study showed that excision of malignant skin tumor before definite diagnosis leads to many problems such as delay of accurate diagnosis, possibility of incomplete excision, difficulty to localize remaining tumor and to decide resection margin.
Mun Ho Jung,Sang Hwan Lee,Yoon Su Kim,Mi Jeong Park 한국토양비료학회 2016 한국토양비료학회지 Vol.49 No.3
The objectives of this study were to investigate the effects of soil neutralizing treatments on soil characteristics and growth of Aster koraiensis in the acid soil of abandoned metal mine for selection of proper neutralizer. The most effective neutralizers were acid mine drainage sludge, waste lime + oyster and compost. Those neutralizing treatments showed promoting growth of Aster koraiensis. According to this study, it is applicable of acid mine drainage sludge, waste lime + oyster and compost to neutralize acid soil for rehabilitation in abandoned metal mine. However, follow-up study is necessary to calculate proper ratio of each neutralizer.
Preparation and Characterization of Electroactive Acrylic Polymer- Platinum Composites
Jeong Han Mo,Woo Sung Min,Kim Hyun Soo,Kim Byung Kyu,Bang Ju Hyun,Lee Sukmin,Mun Mu Seong The Polymer Society of Korea 2004 Macromolecular Research Vol.12 No.6
A new ionomeric polymer-metal composite (IPMC) was prepared using a cast membrane of acrylic copolymer, which was synthesized by radical copolymerization of fluoroalkyl acrylate and acrylic acid (AA). To examine its performance as a new electroactive polymer, the current and displacement responses to a step voltage applied across the IPMC were measured. The largest responses were observed when the AA content in the copolymer was $10.6\;wt\%$.