http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Fe-Cr-Si과 Fe-Cr-Pt 합금의 고온 cyclic 산화거동에 관한 연구
임채선,조현준,최송천,이동복 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.1
To investigate the cyclic oxidation behavior of Fe-Cr-Si and Fe-Cr-Pt alloys, both (82-94)wt% Fe-(5-15)wt% Cr--(1-3)wt% Si and (82-94)wt% Fe--(5-15)wt% Cr-(1--3) wt%Pt alloys were cyclically oxidized in air at 1000 and 1250℃. By the addition of Si or Pt, the oxidation resistance of Fe-Cr alloys was generally increased with the most pronouncing effects observed in Fe-15wt%Cr containing alloys. After oxidation, on the surface of Fe-Cr--Si alloys, complex oxide layers of Fe_20_3/Fe-Cr spinel/Si-rich oxide were formed, which provides the necessary oxidation resistance. Especially, Fe-15wt%Cr-3wt%Si alloys had best oxidation resistance because the inward diffusion of oxygen was considerably deterred owing to the formation of the protective inner Si0_2 layer from the initial oxidation stage. In Fe-Cr-Pt alloys, oxidation resistance was obtained by forming protective Cr_2 O_3 layers below initially formed outer Fe_2 0_3, layers. However, Fe-Cr-Pt alloys showed decreased oxidation resistance at 1250℃ compared with Fe-Cr-Si alloys.
브랜드 인지도와 광고가 콘택트렌즈의 착용감과 가격만족도에 미치는 영향
임동규 ; 신상준 ; 한지선 ; 이익한 ; 김진숙 김천대학교 2016 김천대학교 논문집 Vol.36 No.-
The purpose of this research was to analyze the effects of brand awareness and brand advertising on price satisfaction and comfort in contact lens. We did a survey with 200 university students (85 male, 115 female) who have experience of wearing contact lens from April to May in 2015. The brand awareness of contact lens influences to purchasing intention of contact lens, it effects women more than men. Many respondents(53%) replied that the reliability is the most important elements of the advertising. This survey indicates that there is no statistically significant correlation between the brand awareness and advertisement with price satisfaction in contact lens. Therefore we could confirm they have dissatisfaction for prices of contact lens regardless to brand awareness or advertisement. The brand and advertising dependence group have more comfort of contact lens than non-dependence group when they are long time wear of contact lens. Therefore, there is statistically significant correlation between the brand awareness and advertisement with comfort of contact lens. As a result, brand awareness and reliability of advertising influences to purchasing intention of contact lens. But there is no statistically significant correlation with price satisfaction in contact lens. Whereas, brand awareness and advertisement have a statistically significant correlation with comfort of contact lens.
수종의 엔진구동형 니켈-타이타늄 파일에 의한 급한 만곡의 근관 성형시 근관형태 변화에 대한 비교연구
임중장,김동준,황윤찬,황인남,오원만 大韓齒科保存學會 2005 Restorative Dentistry & Endodontics Vol.30 No.4
본 연구는 치근첨부위의 급한 만곡을 가진 근관에서 엔진구동형 니켈-타이타늄기구를 이용해 근관 성형시 근관형태 변화에 대한 비교 연구를 함으로써 어떤 기구가 근관의 본래 형태를 잘 유지하는가를 구명하기 위하여 시행되었다. #15 finger spreader를 이용해 만곡된 근관의 주형을 형성하고 epoxy resin으로 모형 근관을 갖는 레진 블록 96개를 제작하였다. 모형 근관은 만곡의 반경이 0.5 mm, 3.0 mm.4.0 mm 및 6.0 mm를 가지며, 근관의 만곡도는 90도로 제작하였다. 엔진구동형 니켈-타이타늄 파일로 ProFile, ProTaper, Hero 642 그리고 K³를 사용하였으며 크라운다운법을 이용하여 제조회사의 지시에 따라 300 rpm으로 근관을 성형하였다. 시술 전·후사진을 디지털 카메라를 이용하여 촬영한 후, 이미지분석기를 이용하여 근관의 변화량을 측정하였다. 근관의 만곡을 따라서 치근첨 으로부터 1 mm 간격으로 계측점을 총 9부분을 설정하여 원래의 근관형태가 유지되는 정도를 측정하였다. 각 계측점에서 근관의 중심축의 변위량, 근관의 폭의 변화량을 측정하였다. 계측점에서 각 기구들간의 유의성은 Kruskal-Wallis 분석법을 이용하였고 기구간에 검정은 Mann-Whitney U-test분석법을 이용한 결과 급격히 만곡된 근관 성형시에 반경 1.5 mm의 만곡에서는 엔진구동형 니켈-타이타늄 파일을 사용시 주의를 요하며, 반경3.0 mm 이상의 만곡에서는 다른 엔진구동형 니켈-타이타눔 파일보다는 ProFile의 사용이 권고된다. The purpose of this study was to evaluate which type of Ni-Ti files are able to maintain canal configuration better in the simulated canal with abrupt curvature near it's apex. Ninety six simulated root canals were made in epoxy resin and #15 finger spreader was used as root canal templates. The simulated root canals were made with radius of curvature of 1.5 mm, 3.0 mm, 4.0 mm, 6.0 mm respectively and the angle of curvature of all simulated canals were adjusted to 90 degree. The simulated canals were instrumented by ProFile, ProTaper, Hero 642, and K³ at a 300 rpm using crown-down pressureless technique. Pre-instrumented and post-instrumented images were taken by digital camera and were superimposed with Adobe Photoshop 6.0 program. Images were compared by image analysis program. The changes of canal width at the inner and outer side of the canal curvature, canal transportation were measured at 9 measuring point with 1 mm interval. Statistical analysis among the types of Ni-Ti files was performed using Kruskal-Wallis test and Mann-Whitney U-test. The result was that ProFile maintain original canal configuration better than other engine driven Ni-Ti files in the canals above 3.0 mm radius of curvature, and in the 1.5 mm radius of curvature, most of Ni-Ti flies were deformed or separated during instrumentation.[J Kor Acad Cons Dent 30(4):303-311,2005]
中國 傳統公演施設의 歷史變遷과 建築特性에 關한 硏究 : 中國 劇場 '戱臺'를 中心으로 Focused on the "Xitai(戱臺)" in the Chinese Theater
박창준,한동수,임종엽 대한건축학회 2004 대한건축학회논문집 Vol.20 No.1
The Chinese traditional theater, formed with priority given to the "Xitai", has formed a stage and a seat's space arranging method based on the "siting a stage southward and a stage facing northward 坐南面北", which follows the Chinese's own "Siheyuan-quadrangles 四合院" arranging method, and formed theater with diversity and multilateral character due to a "openness of spaces" of the "Xi Tai". The "Xitai" is typically an "open stage" which 3 sides or 4 sides are open to an audience, and most of all attach great importance to "the connections to surrounding environment" and generally do not take account of a audience's seat space specially. A narrow interior seat space was expanded naturally to exterior space such as a square, a court, a vacant land of street, a "corridor" of surrounding buildings, and even a bridge, a pond, etc. This fact means that, in a theater composition, exterior is considered as interior by the openness of a stage, and surrounding environment is used with a stage as a central figure through an limited interior stage space being led to an unlimited seat space. In other words, the space composition method of "Xitai" emphasizes <void and dynamic> among 'void vs solid' and 'dynamic vs static', and these diversity of space treatment is considered as a "Xitai" architecture's dynamic adaption to space.