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Fukai SHAN,B. C. Shin,G. X. Liu,W. J. Lee,Y. C. Kim 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.3
In$_2$O$_3$-doped ZnO thin films (In: 0.1 at.\%) were deposited on sapphire (0001) substrates at various temperatures (100 -- 600 $^{\circ}$C) by using pulsed laser deposition technique. An X-ray diffractometer was used to investigate the structural properties of the thin films. The thin films were found to have a preferred (002) orientation, and the peak intensity of the (002) orientation was found to increase with increasing growth temperature. With increasing growth temperature, the peak position of the ZnO (002) orientation shifted to the larger-angle side. An atomic force microscope was used to investigate the surface morphologies of the thin films. The grain size and the roughness of the thin films increased with increasing growth temperature. The transmittances of the thin films measured with a spectrophotometer were used to derive the band gap energies of the thin films. The band gap energies of In$_2$O$_3$-doped ZnO thin films were found to be larger than the undoped ZnO thin film due to the Burstein-Moss effect, and the band gap energy was found to decrease with increasing growth temperature. A spectrometer was used to investigate the photoluminescent (PL) properties of the thin films. All of the thin films showed near-band-edge emission and no deep-level emissions. This is due to the compensation of the oxygen vacancies in the thin films. Comparing the band-gap energies calculated from the absorption edge and the peak positions of the PL spectra, we calculated the Stokes shifts for the thin films. Hall measurements indicated that all the thin films were n-type semiconductors. The resistivity decreased and the mobility increased with increasing growth temperature.
Fukai Shan,Yun-Sik Yu 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.44 No.52
As an ecient method for producing a high-quality plasma with the pulsed laser deposition (PLD) technique, an excimer laser is one of the most excellent devices for depositing thin lms, especially for depositing metal-oxide thin lms. In this work, an excimer laser is used to ablate an Al-doped ZnO target (2 wt.%) and to deposit thin lms on glass substrates at dierent substrate temperatures (room temperature, 100, 200, 300, 400, and 500 C). Spectroscopic ellipsometry (SE) is applied to characterize the thin lms. The measured spectra are analyzed using the Sellmeier dispersion relation. The refractive indices and thicknesses of the thin lms are extracted from the SE data analysis by employing two dierent models and the eective medium approximation. The optical functions of the thin lms deposited at higher temperatures are found to have the normal dispersion behavior in the visible range. However, the refractive indices of the thin lms deposited at low temperatures deviate from the normal value. The refractive indices of Al-doped ZnO thin lms deposited at higher temperatures are in the range of 1.9 2.1, which are reasonable values for polycrystalline ZnO thin lms.
Fukai Hirofumi,Furuya Masahiro,Yamano Hidemasa 한국원자력학회 2023 Nuclear Engineering and Technology Vol.55 No.3
To understand the eutectic reaction mechanism and the relocation behavior of the core debris is indispensable for the safety assessment of core disruptive accidents (CDAs) in sodium-cooled fast reactors (SFRs). This paper addresses reaction products and their distribution of the eutectic melting/solidifying reaction of boron carbide (B4C) and stainless-steel (SS). The influence of the existence of carbon on the B4C-SS eutectic reaction was investigated by comparing the iron boride (FeB)-SS reaction by Raman spectroscopy with Multivariate Curve Resolution (MCR) analysis. The scanning electron microscopy with dispersive X-ray spectrometer was also used to investigate the elemental information of the pure metals such as Cr, Ni, and Fe. In the B4C-SS samples, a new layer was formed between B4C/SS interface, and the layer was confirmed that the formed layer corresponded to amorphous carbon (graphite) or FeB or Fe2B. In contrast, a new layer was not clearly formed between FeB and SS interface in the FeB-SS samples. All samples observed the Cr-rich domain and Fe and Ni-rich domain after the reaction. These domains might be formed during the solidifying process.
An Age Estimation System on the AIBO
Hironobu Fukai,Yuuki Nishie,Kohki Abiko,Yasue Mitsukura,Minoru Fukumi,Masahiro Tanaka 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
In this paper, we propose an age estimation system on the AIBO. AIBO is an entertainment robot produced by SONY co., Ltd.. AIBO has many sensors to get information around itself and moves according to its instinct. This autonomous action is considerably natural. However, it is inadequate to communicate with people. If AIBO can estimate the human age from a face image, it becomes more excellent entertainment robot. Then, we propose the age estimation method on the AIBO by using face image. In this paper, the apparent age feature is extracted by the fast Fourier transform (FFT), and it is selected by the GA. Moreover, the age is estimated by the 1-dimensional SOM. In order to show the effectiveness of the proposed method, we show the simulation examples.
닝하오(寧浩) 감독의 영화 편집 스타일 분석 - ‘크레이지 3부작’을 중심으로
추이푸카이 ( Cui Fukai ) 한국영화교육학회 2023 영화교육연구 Vol.17 No.3
중국 6세대의 감독으로서 장르영화에 대한 감독 닝하오(寧浩)은 능숙한 통제력이 있고 적은 예산으로 큰 흥행수입을 거두는 코미디 영화 촬영에 능하다. 닝하오(寧浩)의 영화는 다단서의 폐쇄적 극작 구조, 블랙 유머의 줄거리 설치, 개인화의 영상 스타일로 유명하며, 특히 그의 편집 스타일은 가장 두드러진다. 본 연구는 닝하오(寧浩) 영화 중의 편집 수법을 분석함으로써 서사와 의사표현에 대한 해당 편집 수법의 기능적 가치를 통찰하고자 한다. 본 연구에서 닝하오(寧浩)의 '크레이지 3부작' 시리즈를 분석한 결과, 영화 속의 편집 수법으로는 다단서 연결 편집, 다중 화면 편집, 컷백 플래시백 편집, 심리스 편집, 중복 편집, 음화 편집 등이 있다고 판단한다. 닝하오(寧浩)의 편집 수법은 서사의 리듬을 가속화시킬 수 있고 황당하고 우스꽝스러운 분위기를 조성할 수 있을 뿐만 아니라 삶에 대한 닝하오(寧浩)의 독창적인 견해를 반영할 수도 있다고 본다. 본 연구를 통해 학계와 영화계가 닝하오(寧浩)의 편집 스타일을 더 잘 이해하게 할 수 있을 것이고 코미디 영화의 미래 발전을 위한 더 많은 가능성을 탐색하는 데에도 도움이 될 것이다. As the sixth generation director in China, Ning Hao has a skilled control over genre films and is adept at shooting comedy films that win high box office at a low cost. His films are known for their multi threaded circular structure, black humor plot setting, and personalized visual style, especially the most prominent editing style. This study analyzes the editing techniques in Ning Hao's films to gain insight into their functional value for narrative and ideographic expression. This study analyzed Ning Hao's Crazy Trilogy series of films and found that the editing techniques in his films include multi clue linking editing, multi screen editing, fragmented flash back editing, seamless editing, repetitive editing, and audiovisual editing. This study believes that Ning Hao's editing techniques can not only accelerate the narrative rhythm, create a absurd and humorous atmosphere, but also reflect Ning Hao's unique insights into life. Through this study, it can effectively help the academic and film industries further understand Ning Hao's editing style, as well as his authorship representation based on this style, and further explore more paths for the future development of comedy films.