• 한국엔터테인먼트산업학회논문지
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• 제13권5호
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• pp.99-110
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• 2019

본 연구는 영화 "트루먼 쇼"를 영화음악의 의미와 기능 분석을 통해 내러티브의 특성을 재고하였다. 특히 이 영화의 영화음악 중 필립 글래스의 음악을 중심으로 연구하였으며, 편집곡이 많이 쓰임에 따라서 기존의 영화에 쓰인 그의 음악적 의미와 기능 분석으로부터 출발하였다. 영화음악은 영화의 내러티브가 말하는 스토리텔링의 총체적 관점에서 파악해야함에 따라서 배경음악의 12가지 기능을 통하여 음악을 분석하였다. 영화 전반에 걸쳐서 필립 글래스의 음악은 갈등의 증폭과 절정, 그리고 해결의 장면에 매우 중요하게 사용되었다. 특히 영화의 주인공인 트루먼의 갈등에 나타난 스토리적인 긴장의 고조와 이의 해결 등과 같은 영화의 인물과 내러티브 구조의 중요한 맥락에 필립 글래스의 음악이 음악의 템포적인 대조, 감정 성격의 대조를 통하여 중요하게 작용하였음을 고찰하였다. 또한 이는 영화의 인물과 스토리 설정에 나타난 대조를 영화음악적 대조로 표현한 것이라고 이해할 수 있다.

• Nuclear Engineering and Technology
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• 제40권3호
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• pp.233-238
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• 2008

This study investigates the surface modification of a Hastelloy X plate and diffusion bonding in the assembly of surface modified plates. These types of plates are involved in the key processes in the fabrication of a process heat exchanger (PHE) for a $SO_3$ decomposer. Strong adhesion of a SiC film deposited onto Hastelloy X can be achieved by a thin SiC film deposition and a subsequent N ion beam bombardment followed by an additional deposition of a thicker film that prevents the Hastelloy X surface from becoming exposed to a corrosive environment through the pores. This process not only produces higher corrosion resistance as proved by electrolytic etching but also exhibits higher endurance against thermal stress above 9$900^{\circ}C$. A process for a good bonding between Hastelloy X sheets, which is essential for a good heat exchanger, was developed by diffusion bonding. The diffusion bonding was done by mechanically clamping the sheets under a heat treatment at $900^{\circ}C$. When the clamping jig consisted of materials with a thermal expansion coefficient that was equal to or less than that of the Hastelloy X, sound bonding was achieved.

• 치과방사선
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• 제27권1호
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• pp.55-71
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• 1997

Digora/sup (R)/ an intraoral digital radiography system utilizing image plate (IP) - has a dynamic range of exposure time which allows it to decrease the patient's exposure time and to increase diagnostic ability through image processing, transmission and storage. The purpose of this study was to evaluate the Digora/sup (R)/ system by assessing the effects of various exposure times on the detectability on the tip of the endodontic file. Examining the root canals of 45 extracted sound premolars, K -files No. 10, 15, and 20 were placed at slightly varying distances from the apex. The teeth were glued onto resin-plaster blocks. Five exposure times varying between 0.01 seconds and 0.25 seconds were used. Four observers were asked to measure the distance between the tip of the file and a reduction of crown portion, and obtained mean errors (subtracting true file length from the measured file length), comparing Digora/sup (R)/ monitors with E-plus films, which were both obtained under the same geometrical positions. The results were as follows : 1. Comparing E-plus film with Digora/sup (R)/ at 0.01 seconds, the mean errors in E-plus film showed -4.453 nun, -4.497 nun, and -3.857 nun, while the mean errors in Digora/sup (R)/ showed 0.065 nun, 0.607 nun, and 0.719 mm according to the file groups. Therefore there was a significant difference between E-plus film and Digora/sup (R)/(p<0.05). 2. By comparison of mean errors according to the various exposure times in the Digora/sup (R)/ system, the mean error at 0.01 seconds was significantly lower than that at 0.12 and 0.25 seconds in the No. 10 file group(p<0.05). And the standard deviation was the highest at 0.01 seconds. 3. Comparing E-plus film at 0.25 seconds with the Digora/sup (R)/ system, the mean errors showed a significant difference between E-plus film at 0.25 seconds and the Digora/sup (R)/ system at 0.25 seconds in No. 10 and 20 file groups(p<0.05). 4. Comparing E -plus film at 0.25 seconds with other exposure times, the mean errors showed a significant difference between E-plus film at 0.25 seconds and E-plus film at 0 .. 01 and 0.03 seconds in 10 file group(p<0.05). In the No. 15 and 20 file groups, there was a significant difference between E-plus film at 0.25 seconds and E-plus film at 0.01 seconds(p<0.05). In conclusion, Digora/sup (R)/ was better than E-plus film in detectability on the tip of the file at the exposure time of 0.01 seconds in all file groups. And we concluded that Digora/sup (R)/ can shorten exposure times up to 4％ of 0.25 seconds (0.01 sec), which is adequate exposure time for premolar in E-plus film using No. 15 and 20 files.

• 한국인터넷방송통신학회논문지
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• 제12권6호
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• pp.57-63
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• 2012

심장질환과 호흡기계 질환이 증가하는 가운데 기초진료를 위한 청진기의 성능 및 효과적인 사용은 매우 중요한 과정으로 적용되고 있다. 본 연구에서는 piezopolymer film을 사용하여 주위 소음을 최소화하고 5Hz까지의 저주파 대역을 수용할 수 있는 접촉형 진동센서를 개발하였고, 기존 전자청진기의 청진음보다 의사들이 익숙해 있는 청진음에 가깝도록 신호처리 기술을 적용하였다. 특히 저주파수 대역의 심음을 왜곡 없이 검출하고, 대부분의 전자청진기에서 취약한 호흡음의 질적 수준을 향상시켰으며, 블루투스를 적용하여 무선으로 송수신함으로써 u-헬스케어 환경에 적용이 가능한 전자청진시스템을 개발하였다. 본 연구의 결과는 일상생활중의 건강관리에 원격진료를 통한 의료산업 및 정보통신 산업 간의 융합기술 활성화에 적용될 수 있을 것이다.

• 한국인터넷방송통신학회논문지
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• 제12권5호
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• pp.91-97
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• 2012

근래의 전기 전자 제품은 기능은 향상되는 반면 크기는 소형화되는 추세에 있다. 기존 입체 형태의 음향 신호 재생 장치로서의 엑츄에이터 대신 압전 소자를 이용한 스피커가 개발되기 시작하였다. 압전 소자는 압전 특성을 갖는 물질로서 물체의 외부에서 전압을 가할 때 기계적인 변형을 일으키는 특징(즉 피에조 특징)을 이용한다. 초기의 필름 스피커는 화학적 성질의 한계로 인하여 전도성 고분자 막을 형성하기 힘들다는 한계가 있었고, 도포한 두께를 균일하게 유지하기 힘들었으며, 음향 신호의 출력과 동작 주파수의 한계가 있다는 등의 종래 기술의 문제점을 해결하기 위해, 전도 물질과 피에조 물질(필름)의 결합력을 증가시킴으로써 전도체의 저항을 줄이고 주파수 영역을 확장하고자 한다. 피에조 필름의 표면 접착력을 향상시키고, 고분자 전도체 막의 흡착력을 증가시킴으로써 음향시스템의 출력 향상을 위해 코로나 표면처리방식에 의한 표면 특징을 변화시킴으로써 출력개선을 하였다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2007년도 추계학술대회 논문집
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• pp.37-38
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• 2007

This paper reports the characteristics of piezoelectric microspeakers that are audible in open air with high quality piezoelectric AlN thin film according to the materials properties. When we use a tensile-stressed silicon nitride diaphragm as a supporting layer, the Sound Pressure Level (SPL) is relatively small. However, the SPL of the fabricated microspeakers that have compressive-stressed composite diaphragm show higher output pressure than those of tensile-stressed diaphragm. It produces more than 60dB from 100Hz to 15kHz and the highest SPL is about 100dB at 9.3kHz with 20 Vpeak-to-peak sinusoidal input biases and at 10 mm distances from the fabricated microspeakers to the reference microphone.

• 한국멀티미디어학회논문지
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• 제17권10호
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• pp.1239-1252
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• 2014

The OST (Original Sound Track) in the film plays a vital role in increasing consensus and concentration to the storyline. The selected 4 animations are classified into 17 Narrative Processes (NP) by using NP Classification Model [1]. For the NPs each having OSTs, the authors have investigated 6 kinds of objective musical elements of the OST such as sound (speech, music, effect), tonality, tempo, range, intensity, and instrumentation. It is found that there are 33.3% common musical elements among all of them for the NPs with OSTs commonly. Among them, it is also found that there are 71.9% of common properties of the musical element. This research is meaningful by firstly showing that there are common properties of objective musical elements in each NP and the corresponding OST.

• 한국멀티미디어학회논문지
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• 제25권10호
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• pp.1475-1482
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• 2022

Mickey Mousing perfect match between animation sound and image was an aesthetic in the field of animation, but since the 2000s, works such as and released by producers such as DreamWorks and Pixar have expanded the perfection of synchronization to irony. It also influenced the identification system of sentiment. It is time to view the directing attempt of these elements as a factor that changed the new paradigm of narrative, and related research is needed. In this study, the scene of was analyzed as a case study for the synchronization of animation sound and image components and the boundary direction on the recognition of identification between reality and fiction. Aesthetic recognition of the research work is based on the premise of real time and space perception, and the audience can recognize in the conceptual world as an integrated art by playfully producing fictional time and space. The direct antithesis of synchronization and identification was drawn to maintain the curiosity of the next scene by repeating selective concealment and disclosure of information in the direction of conveying an unfamiliar and heterogeneous feeling to the audience.

• Imaging Science in Dentistry
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• 제34권3호
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• pp.145-150
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• 2004

Purpose: To compare three digital radiographic imaging sensors by evaluating the visibility of endodontic file tips with interobserver reproducibility and assessing subjectively the clarity of images in comparison with the x-ray film images. Materials and Methods: Forty-five extracted sound premolars were used for this study. Fifteen plaster blocks were made with three premolars each and #8, 10, 15 K-flexofiles were inserted into the root canal of premolars. They were radiographically exposed using periapical x-ray films (Kodak Insight Dental film, Eastmann Kodak company, Rochester, USA), Digora imaging plates (Soredex-Orion Co., Helsinki, Finland), CDX 2000HQ sensors (Biomedisys Co., Seoul, Korea), and CDR sensors (Schick Inc., Long Island, USA). The visibility of endodontic files was evaluated with interobserver reproducibility, which was calculated as the standard deviations of X, Y coordinates of endodontic file tips measured on digital images by three oral and maxillofacial radiologists. The clarity of images was assessed subjectively using 3 grades, i.e. plus, equal, and minus in comparison with the conventional x-ray film images. Results: Interobserver reproducibility of endodontic file tips was the highest in CDR sensor (p < 0.05) only except at Y coordinates of #15 file. In the subjective assessment of the image clarity, the plus grade was the most frequent in CDR sensor at all size of endodontic file (p < 0.05). Conclusion : CDR sensor was the most superior to the other sensors, CDX 2000HQ sensor and Digora imaging plate in the evaluation of interobserver reproducibility of endodontic file tip and subjective assessment of image clarity.

• 한국재료학회지
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• 제10권1호
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• pp.62-68
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• 2000

Reactive DC magnetron sputtering 법으로 AISI 304 스테인레스강 기판 위에 TiN 극박막을 50nm∼700nm 두께로 증착한 후, 경화된 AISI 52100 강과 알루미나를 마모 상대재로 하여 박막의 미끄럼마모 시험을 상온 대기 중에서 행하고, 마모 상대재에 따른 TiN 극박막의 마찰과 마모 거동을 연구하였다. AISI 52100 강구를 마모 상대재로 한 경우, TiN 박막은 200g 이하의 마모 하중과 0.035m/sec의 낮은 미끄럼 속도 조건에서 500nm 내외의 극박으로도 마찰계수가 0.1 내외로 유지되는 우수한 내마모성을 보였다. 이같이 우수한 내마모성은 AISI 52100 강으로부터 천이된 Fe가 산화되어 TiN 박막 표면에 Fe 산화층을 형성한 때문으로 설명되었다. 그러나, 마모 상대재를 알루미나 볼로 한 경우에는 TiN 박막 위에 산화층이 형성되지 않고, 마모가 거의 되지 않는 알루미나 볼과 박막층 사이에 국부적 응력집중 등이 발생하여 시험된 전 조건 하에서 박막층의 박리 현상이 관찰되었고 높은 마찰계수가 측정되었다. 또한 기판의 평균 표면조도, Ra가 박막의 두께와 유사할 때 마찰계수가 급격히 상승하는 현상이 관찰되었다.