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치과용 임플란트 적용을 위한 항균력을 가진 티타늄 표면의 평가
강민경 ( Min Kyung Kang ),문승균 ( Seung Kyun Moon ),김경남 ( Kyoung Nam Kim ) 한국치위생과학회 2011 치위생과학회지 Vol.11 No.5
The aim of this study was to evaluate antibacterial effect of Cl coated titanium. To coat the Cl on the titanium, first, the titanium was modified by blasting treatment with hydroxyapatite and alumina powder. Anodization process was completed using electrolyte solution of 0.04 M β-glycerol phosphate disodium salt n-hydrate, 0.4 M calcium acetate n-hydrate and 1 M NaCl on the condition of 250 voltages for 3 min. Surface morphology and elements` observation were performed with scanning electron microscopy and energy dispersive spectroscopy and surface profiler was used to analyze the surface roughness. Antibacterial effect was evaluated by film adhesion method. The anodized titanium after blasting showed dimpled surface contained the Cl. Surface average roughness of these surfaces had significantly higher compared to polished titanium. Result of antibacterial test showed that anodized titanium after blasting had an enhanced antibacterial effect compared to the polished titanium. Therefore, these results suggested that titanium contained Cl by anodization after blasting had a rough surface as well as antibacterial effect.
강민경,이명예,홍경표,유선균,장경호,Kang Min-Kyoung,Lee Myung-Ye,Hong Kyung-Pyo,Yoo Sun-Kyun,Chang Kyung-Ho 동아시아식생활학회 2005 동아시아식생활학회지 Vol.15 No.6
The purpose of this study was to evaluate the selective marinates, red win, ginger, ginseng, and green tea, for improving the sensory characteristics of pork hind legs. The marinated samples of pork hind legs were analyzed for their physicochemical propenies and sensory characteristics. Especially, overall acceptabilities of them were compared with bacon the most palatable pork meat to Koreans. After marinating, all the meats except the red wine marinated meat showed pH increase. After cooking, all the marinated meat including red wine marinated meat recorded further pH increase. The water holding capacities(WHC's) of the marinated meats except the ginger one showed a tendency of decrease. however, who's or all the cooked meats were increased greatly. Only the L-value or the green tea marinated meat increased After cooking, the L-values of the red wine and ginseng marinated meats were lower than that of the unheated cooked meat The a-value of the green tea marinated meat recorded the lowest In the hardness and gumminess test all the marinate treatments showed lower values than the control did. the brittleness of all the marinated meats except the ginger one decreased The flavor of the cooked ginger marinated meat was improved to the similar level of bacon. The textures of all the treatments except the green tea marinated meat were improved the overall acceptability of the ginger or ginseng marinated meat improved greatly to $87.6\%$ of bacon$(100\%)$.
대장 종양의 진단에서 F18-FDG PET/CT의 유용성
강민경 ( Min Kyung Kang ),홍성표 ( Sung Pyo Hong ),이지은 ( Ji Eun Lee ),전태주 ( Tae Joo Jeon ),김종우 ( Jong Woo Kim ),권창일 ( Chang Il Kwon ),고광현 ( Kwang Hyun Ko ),황성규 ( Seong Gyu Hwang ),박필원 ( Pil Won Park ),임규성 ( 대한장연구학회 2010 Intestinal Research Vol.8 No.1
Background/Aims: The diagnostic value of 2-18F-fluoro-2-deoxy-D-glucose positron emission tomography (FDG PET)/CT in the detection of colon carcinoma and adenoma was evaluated retrospectively. Methods: Between May 2007 and June 2008, 102 patients (42 males and 60 females: age range, 28-89 years) underwent both FDG PET/CT and colonoscopy in < a 3 month interval. FDG uptake on PET/CT was divided into physiologic and pathologic uptake by a nuclear medicine specialist. Pathologic confirmation was obtained in all patients. Results: Forty-three patients had no abnormal findings on both FDG PET/CT and colonoscopy. One hundred five and 59 colonic lesions were detected on FDG PET/CT and colonoscopy, respectively. Eleven of 24 lesions with pathologic FDG uptake were histologically-confirmed to be malignancies. Among 18 lesions with physiologic FDG uptake, 1 carcinoma and 1 adenoma were revealed. One carcinoma, 25 adenomas, and 11 hyperplastic polyps did not reveal FDG uptake. Interpretation of pathologic FDG uptake in the colon had a sensitivity of 84.6% and 28.2%, a specificity of 90.4% and 88.1%, a positive predictive value of 45.8% and 45.8%, and a negative predictive value of 98.4% and 77.8% for carcinomas and adenomas, respectively. Conclusions: FDG PET/CT is a very useful diagnostic method for the detection of colon cancer, but the sensitivity is low for adenomas, which may need further evaluation, such as a screening endoscopy. (Intest Res 2010;8:18-23)
아파트 저층부의 디자인적 요소로 적용되는 외장 석재가 단열성능에 미치는 영향 평가
강민경(Min Kyung Kang),윤범열(Beom Yeol Yun),이경훈(Kyung Hoon Lee),김수민(Sumin Kim) 한국생활환경학회 2021 한국생활환경학회지 Vol.28 No.5
The most effective way to save energy in a building is to strengthen the insulation performance of the outer shell. As an apartment building, it is essential to strengthen the insulation performance as the representative housing type in Korea. Visual elements that satisfy consumers are also important. Therefore, this study focused on the effect of exterior materials used as design elements on insulation performance. For this, four types of exterior materials mainly used were selected and the thermal conductivity of each was measured. Based on the measured thermal conductivity, the thermal transmittance value for each case was calculated. Annual heating and cooling energy consumption was calculated through simulation through the calculated thermal transmittance value and comparatively analyzed. As a result of comparison, both heating and cooling energy consumption showed a slight difference of less than 1% depending on the presence or absence of exterior materials. Therefore, it was judged that the existing exterior material as a design element did not help the insulation performance. However, now that both insulation performance and design are considered important, it is judged that research on exterior materials that can play both roles at the same time is necessary.
시각적 자료를 이용한 영어 강세 지도 방법의 효과성 고찰
강민경(Kang, Min-Kyung),전지현(Jeon, Jihyun) 새한영어영문학회 2013 새한영어영문학 Vol.55 No.4
This study aimed to investigate the effect of English word stress instruction on Korean college students’ English improvement. 40 college students participated in this study and all participants’ speeches were recorded by a visual and auditory tool, Praat. The main results are as follows: (1) Both control and experimental groups didn’t pronounce the English word stress correctly in their pre-test. (2) There was a certain difference between the control group and the experimental group in their post-test results. The experimental group’s mean for accentedness was highly increased while the control group’s mean remained almost the same. (3) It was evident that shorter syllable words had the highest mean score for both pre- and post-tests. (4) The characteristics of Korean college learners’ English word speech were that they tended to place the stress on the first syllable and to give the same amount of stress on each syllable. In conclusion, Korean college learners could improve native-like accentedness by learning the English word stress with a visual and auditory tool. Moreover, learning English stress is not necessarily affected by learner’s age, rather affected by individual differences.
도시별 건축자산의 가치판단 기준 특성 - 대전광역시, 세종특별자치시, 청주시의 건축자산을 대상으로 -
강민경(Kang, Min-kyung),안대환(An, Dai-Whan) 대한건축학회 2021 대한건축학회논문집 Vol.37 No.12
As of 2020, the ‘1st Basic Plan for the Promotion of architectural Assets’ was carried out according to historical, scenic, artistic, and socio-cultural values for each city and province. When conducting the basic architectural asset survey, each city and province used the same value judgment criteria, but the value characteristics of architectural assets were different for each city. The purpose of this study is to examine the relationship between architectural assets and cities from the point of view of value judgment and the characteristics of architectural assets that appear in each city. Targeting Daejeon, Sejong, and Cheongju, the characteristics of the times of each city are identified. The characteristics were identified by classifying the types by historical, scenic, artistic, and socio-cultural values, which are the criteria for judging the value of architectural assets by city. As a result, historical values were given to the architectural assets that showed the characteristics of the times in the three cities. Sejong City, which developed relatively recently, gave historical value only to architectural assets in the form of hanok. Cheongju, with a long history, did not attach historical value to Gak Dang(閣堂). The scenic value is given to the architectural assets that harmonize with the surrounding environment. Daejeon and Cheongju were judged to be in harmony with the surrounding environment through the material and shape of the facade. Sejong City, where many buildings have been built in recent years, won the Architecture Award. In addition, a scenic value was given to architectural assets that would be in harmony with the natural scenic. Artistic value is given to architectural assets that reflect the characteristics of the times in architectural design and are in a good state of preservation. Also, Daejeon, Sejong, and Cheongju gave artistic value mainly to architectural assets that have won architectural awards. Through this study, it can be seen that the characteristics of architectural assets differ from city to city because the characteristics of cities and the criteria for value judgment for selecting architectural assets are related to each other. Accordingly, it shows that architectural assets should be preserved, managed, and utilized differently for each city.