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적외선열화상장치를 이용한 Buchanan plugger 표면의 온도상승 분석
최성아,김선호,황윤찬,윤창,오병주,최보영,정우남,정선와,황인남,오원만 大韓齒科保存學會 2002 Restorative Dentistry & Endodontics Vol.27 No.4
This study was performed to evaluate the temperature rise on various position of the Buchanan plugger, the peak temperature of plugger's type and the temperature change by its touching time of heat control spring. The heat carrier system 'System B' (Model 1005. Analytic Technologies, USA) and the Buchanan's pluggers of F, FM, M and ML sizes are used for this study. The temperature was set to 200℃ which Dr. Buchanan's "continuous wave of condensation" technique recommended on digital display and the power level on it was set to 10. In order to apply heat on the Buchanan's pluggers, the heat control spring was touched for 1, 2, 3, 4 and 5 seconds respectively. The temperature rise on the surface of the pluggers were measured at 0.5 mm intervals from tip to 20 mm length of shank using the infraed thermography (Radiation Thermometer-IR temper, NEC San-ei Instruments, Ltd, Japan) and TH31-702 Data capture software program (NEC San-ei Instruments, Ltd, Japan). Data were analyzed using a one way ANOVA followed by Duncan's multiple range test and linear regression test. The results as follows. 1. The position at which temperature peaked was approximately at 0.5 mm to 1.5 mm far from the tip of Buchanan's pluggers (p<0.001). The temperature was constantly decreased toward the shank from the tip of it(p<0.001). 2. When the pluggers were heated over 5 seconds, the peak temperature by time of measurement revealed from 253.3±10.5℃ to 192.1±3.3℃ in a touch for 1 sec, from 218.6±5.0℃ to 179.5±4.2℃ in a touch for 2 sec, from 197.5±3.0℃ to 167.6±3.7℃ in a touch for 3 sec, from 183.7±2.5℃ to 159.8±3.6℃ in a touch for 4 sec and from 164.9±2.0℃ to 158.4±1.8℃ in a touch for 5 sec. A touch for 1 sec showed the highest peak temperature, followed by, in descending order, 2 sec, 3 sec, 4 sec. A touch for 5 sec showed the lowest peak temperature (p<0.001). 3. A each type of pluggers showed different peak temperatures. The peak temperature was the highest in F type and followed by, in descending order, M type, ML type. FM type revealed the lowest peak temerature (p<0.001). The results of this study indicated that pluggers are designed to concentrate heat at around its tip, its actual temperature dose not correlate well with the temperature which Buchanan's "continuous wave of condensation" technique recommended, and finally a quick touch of heat control spring for 1 sec reveals the highest temperature rise.
울진원자력발전소 주변 해역 동물플랑크톤상의 계절 변화 및 사망률
이성진,김세화 용인대학교 자연과학연구소 2009 自然科學硏究所論文誌 Vol.14 No.1
Zooplankton samples were collected for the investigation of zooplankton dynamics at ten selected stations in waters off Ulchin nuclear power plant, Korea in January, April, August and October, 2008. A total of 34 taxa occurred. Copepods showed the prosperity in species number with 18 species. Seasonally, 17 taxa were observed in January and 24 in April, 20 in August and 21 in October, respectively. Maximum abundance of 6,631 indiv./m3 was recorded in April and the minimum was 551 in October. Dominant taxa were copepodite, copepod nauplius, Podon Polyphemoides, Paracalanus sp. and Oithona similis. Maximum mortality of 16.4% was recorded in August and the minimum was 10.3% in October. Little impact might exist on zooplankton fauna in waters off Ulchin nuclear power plant due to the maximum mortality being recorded less than 30% during the study.
누에의 軟化病에 關한 硏究 : Ⅰ. Identification and pathogenicity of etiologic agent 제1보 原因菌의 分離同定과 病原性에 對하여
李載窪,趙成萬 全南大學校 農漁村開發硏究所 1978 農業科學技術硏究 Vol.13 No.-
軟化病蠶에서 分離된 菌의 生物化學的 性狀과 누에에 대한 病原性試驗結果를 要約하면 다음과 같다. 1. 分離菌의 形態, 培養性狀 및 生物化學的 性狀檢査 結果 Bacillus thringiensis의 性狀과 大體로 一致하였다. 2. 分離菌은 病原性이 確認되었으며 特히 培養菌의 生理的 食鹽水浮遊液添食區가 斃死率이 가장 높았고 分離菌의 斃死까지의 期間은 齡이 增加할수록 길어졌으며 斃死率은 4, 3, 5齡 順으로 높은 것으로 觀察되었다. The biochsmical characteristics of the isolated bacteria from silkworms infected with Flacherie and its pathogenicity were examined. The results obtained were summarized as follows: 1. The biochemical characteristics of isolated bacteria were almost similar to the characteristics of Bacillus thuringiensis. 2. The pathgenicity of the isolated bacteria was recognized and the ratio of dead to alive number of silkworms was remarkably highest in the mulberry leaves fed with saline-suspension. The incubation-psriod of pathogenic agent was highly extended with the instar advanced and the ratio of dead to alive number of silkworms was higher in the order of 4th instar>3rd>5th.
월성원자력발전소 주변 해역 동물플랑크톤상의 계절 변화 및 사망률
김세화,이성진 龍仁大學校 2010 용인대학교 논문집 Vol.28 No.-
Zooplankton samples were collected for the investigation of zooplankton dynamics at ten selected stations in waters off Wolseong nuclear power plant, Korea in January, May, August and October, 2008. A total of 49taxa occurred. Copepods showed the prosperity in species number with 25species. Seasonally, 30taxa were observed in January and 34 in May, 32 in August and 30 in October, respectively. Miximum abundance of 3,385 indiv./m3 recorded and the minimum was 426 in August. Dominant taxa were copepodite, Noctiluca scintillans, Paracalanus sp. and Corycaeus affinis. Maximum mortality of 20.9% was recorded in October and the minimum was 12.8% in January. Little impact might exist on zooplankton fauna in waters off Wolseong nuclear power plant due to the maximum mortality being recorded less than 30% during the study.
Sang Min Lee,Soon Hee Kim,Ji Sung Kim,Joong San Wang,Sung Won Kim,Nyeon Jun Kim,Sook Hee Lee,Kyoung Ok Min 국제물리치료학회 2011 Journal of International Academy of Physical Ther Vol.2 No.2
The purpose of this study is to examine the changes in bone mineral density in long-stay patients of a geriatric hospital in relation to physical therapy, thereby providing basic data for preventing the onset or deterioration of osteoporosis in inpatients of geriatric hospitals or relevant facilities. The subjects of this study were 133 elderly patients who had been in H geriatric hospital in Yongin-si for more than four years. Their bone mineral density T-scores at admission and those after four years were measured to compare and analyze the changes in bone mineral density in relation to physical therapy. According to the results, the decrease in T-score for the group without physical therapy was greater by .40 than that for the group with physical therapy, indicating a statistically significant difference between the two groups(p<.01). Accordingly, physical therapy proved to be effective in preventing bone mineral density loss and maintaining the current density.
Young Dae Yun,Hee Joon Shin,Sung Joong Kim,Sang Wan Lim,Suk Ju Choi,Dong Kyu Seo,Hong Rae Kim,Jung Hee Kim,Joo Sang Lee,Mi Jung Kim,Soon Hee Kim 국제물리치료학회 2010 Journal of International Academy of Physical Ther Vol.1 No.2
The purpose of this study was to analyze and compare the effect of resistance exercise and balance exercise on proprioception and WOMAC index of patients with degenerative knee osteoarthritis. A total of 40 subjects participated in this study. The subjects were diagnosed with degenerative knee osteoarthritis and all were more than 60 years old. They were divided into three groups. Group Ⅰ(n=8) was trained with resistance exercise, Group Ⅱ(n=6) was trained with balance exercise and GroupⅢ(n=6) was trained with range of motion as a control. The results of this study were as follows. It was significantly indicated that the resistance exercise group and balance exercise group elicited error-reduction on proprioception goal-angle (p<.05). There was a statistically significant difference on proprioception between resistance exercise group and control(range of motion) group. There was a statistically significant reduction on WOMAC index between resistance exercise group and balance exercise group (p<.05) and on the WOMAC index between resistance exercise group and range of motion group(p<.05). In conclusion, resistance exercise and balance exercise are effective on degenerative knee osteoarthritis and resistance exercise is the most effective for improving proprioception and WOMAC index. More research on the intervention according to the degree of degenerative knee osteoarthritis is needed.