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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.
P412 : Giant chondroid syringoma appearing as Large protruding telangiectatic tumor on nose
( Sung Min Park ),( Gun Wook Kim ),( Hyun Ho Cho ),( Won Jeong Kim ),( Margaret Song ),( Hoon Soo Kim ),( Hyun Chang Ko ),( Byung Soo Kim ),( Moon Bum Kim ),( Je Ho Mun ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.1
P273 : Tuberous sclerosis presented only with connective tissue nevi: usefulness of genetic testing
( Sung Min Park ),( Gun Wook Kim ),( Hyun Ho Cho ),( Won Jeong Kim ),( Je Ho Mun ),( Magaret Song ),( Hoon Soo Kim ),( Hyun Chang Ko ),( Byung Soo Kim ),( Moon Bun Kim ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.1
Synthesis of Superconductor $YBa_{2}Cu_{4}O_{8}$ by Pyrolysis of EDTA Complex
Jeong Cheol-Mo,Mun Seung-Ho,Kang Cheol-Hwa,Lee Cheol-Eui,Yom Sang-Seop,Kim Keon Korean Chemical Society 1992 Bulletin of the Korean Chemical Society Vol.13 No.6
The superconducting $YBa_2Cu_4O_8$ was synthesized in oxygen condition at 1 atm. The starting material with 1 : 2 : 4 composition was obtained by pyrolysis of EDTA complex, which was converted to 1-2-3 phase during densification, followed by the 1-2-4 phase recovery at $810^{\circ}C$ . The phase presents were identified by XRD, TG, DTA and AC magnetic susceptibility. Our data indicated that considerable amounts of 1-2-4 phase formed but with the 1 : 2 : 3 phase or possibly 2-4-7 as visible. As the P($O_2$) increased with temperature, impurity peak, CuO ($2{\Theta}$ = 38.8), gradually decrease, and we conclude that the 1-2-4 phase is predominant bulk superconductor under the high oxygen pressure.
P082 : Use of ustekinumab for treatment of moderate to severe psoriasis in Korea
( Sung Min Park ),( Gun Wook Kim ),( Hyun Ho Cho ),( Won Jeong Kim ),( Je Ho Mun ),( Margaret Song ),( Hoon Soo Kim ),( Hyun Chang Ko ),( Moon Bum Kim ),( Byung Soo Kim ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2
Background: Ustekinumab, a fully human monoclonal immunoglobulin antibody that targets the interleukin (IL)-12 and IL-23 shared P40 subunit, has emerged as a promising treatment for moderate to severe psoriasis. However, to date, there are no ‘real-world’ data on ustekinumab in Korean patients with psoriasis. Objectives: To assess the clinical efficacy and safety of ustekinumab in Korean patients with psoriasis. Methods: Retrospective data was gathered during the follow-up of 31 consecutive psoriasis patients treated with ustekinumab for minimum of 16 weeks at single referral centre. Patients’ age, gender, Psoriasis Area Severity Index (PASI) score, physicians’ global assessment (PGA), concomitant therapies, and adverse events were reviewed. Results: Thirty-one patients (median age 42.7) had been treated with ustekinumab. Twenty-three of 31 patients (74.2%) had obtained near complete clearance (PASI 90) upon the final follow-up visit, and PASI90 was achieved after an average of 2 administration of ustekinumab. Concomitant systemic treatments, primarily methotrexate, were given to 7 (22.5%) patients. Three patients (9.7%) discontinued treatment, primarily for sub-optimal response or loss of response. No unexpected adverse events other than herpes zoster and elevated liver enzyme were observed. Conclusion: Ustekinumab can be of benefit in the treatment of Korean psoriasis patients, as it was associated with a rapid and satisfactory response and was well tolerated.
(Sang Mun Jeong),(Sang Done Kim) 한국화학공학회 1999 Korean Journal of Chemical Engineering Vol.16 No.5
A fluidized bed reactor has been developed to overcome the plugging problem of urea injection by employing a sparger rather than nozzles in the SNCR process for simultaneous removal of SO_2 and NO_x. In a developed fluidized bed reactor, the optimum temperature to remove NO_x is shifted to lower values, the reaction temperature window is widened with the presence of CO in flue gas, and NO conversion is higher than that in a flow reactor. The optimum amount of urea injection in the reactor is found to be above 1.2 based on the normalized stoichiometric molar ratio (NSR) with respect to NO conversion. In the simultaneous removal of SO₂/NO, conversions of SO₂ and NO reach 80-90%, nearly the same values for the individual removal of SO₂ and NO above 850℃.