• Journal of Digital Contents Society
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• v.12 no.2
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• pp.177-184
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• 2011

This study deals with Timing Synchronization of motion picture and music in film music's physical point of view. Timing Synchronization appears by using Click Track, which calculates time of picture and location of bar. We also can find Hit, the emphasis point of music, by computation Frame Per Beat and estimate the location of note per time. Hit can be placed at upbeat, but, because of music's characteristic, it is more convenient to composer when it's placed at downbeat. Therefore, this study suggests three methods to sync the music and picture. First of all, sync through time conversion, second of all, sync through tempo conversion, and lastly, there is way to sync through offset. These each methods have their pros and cons, so choice should be made based on the music's natural flow.

• Tribology and Lubricants
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• v.1 no.1
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• pp.20-29
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• 1985

많은 윤활 부품의 성능과 수명은 초기작동기간에 금속표면에서 일어나는 현상들에 의하여 좌우된다. 특히 혼합마착구역(Mixed film region)에서나 윤활막의 두께가 몇십 마이크론의 정도가 되는 EHD(Elastohydrohynamic)윤활구역에서 작동하는 경우엔 더욱 중요하다. 이러한 경험적 현상에 의해 상대운동하는 두마찰면의 초기 작동과정을 길들이기(run-in, breaking-in)라고 부르고 "마찰 부분의 형상이나 마모 및 윤활 마찰특성이 향상되어가는 과정" 으로 정의한다. 보통 길들이기 과정이 끝나면 표면 모양은 더이상 변하지 않고 마모나 마찰 특성이 일정하게되며 이 단계를 정상 상태라고 부른다. 길들이기과정이 중요시되는 것은 이 과정에서 마모는 정상 상태보다 심하고 Scuffing 혹은 Scoring현상이라고 부르는 마찰면 손상의 가능성이 항상 존재하기 때문이다. 이 현상은 보통의 마모나 부식 또는 피로파손의 형태와는 달리 갑작스런 발생으로 부품이나 기관의 부분적 혹은 완전 파손을 유발함으로써 설계나 제조 과정에 문제를 제기하는 요인으로 오래전부터 알려져 왔다.부터 알려져 왔다.

• The Journal of the Korea Contents Association
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• v.13 no.11
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• pp.87-95
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• 2013

"Gone with the wind"(1939, Directed by Victor Fleming) was produced in the stylistic conventions of the classical hollywood cinema, and thus the musical employment also followed the norms of the style, such as late Romantic musical style, serving the narrative, signifier of emotion, and giving continuity and unity. But, at the same time, the statement of the classical theory that the music hides and tailors itself to support the drama - invisibility, inaudibility, narrative cuing and so on - does not seem to explain the musical employment of "Gone with the wind." On the contrary, it hires music to put itself forward, and often times it stops the narrative to show musical spectacles for which the image is tailored to fit the music. These are more of music theatre or music drama features rather than the conventional underscore of the films in that period. In this study analysed the musical employment of "Gone with the wind" to see how it took full advantage of music to lead the narrative in a more active way and to make musical spectacles, by borrowing the technique and style of music theatre, such as, overture and entr'acte, similarities with film musicals, Wagnerism influence, and the use of songs.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.4
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• pp.648-655
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• 2019

This paper proposes the differential development of a Taekwondo electronic body protector. For this development, the most suitable sensor system was selected after analyzing and testing various sensor methods (magnetic sensors, electric capacity sensors, contact switch sensors, and piezo-film sensors) that could be applied in the electronic body protector, the selected sensors were distributed to the body and feet to make a more precise hit score, unlike the existing system in which all sensors are centralized on the body. Furthermore, it aims to illuminate using a lightweight film-type piezoelectric sensor on the body protector. In the case of an existing electronic body protector, all sensors and network device were concentrated on the body protector, so users need to purchase a set if they want it. On the other hand, the proposed system cloud can be used individually using a smart scoring WEP program. The effects of decreasing weight by up to 20% were compared with those of the existing system. Setting up a test facility is very difficult, so more study will be needed to analyze the effects of a hit.

• Korean Journal of Soil Science and Fertilizer
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• v.37 no.6
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• pp.357-364
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• 2004

Modern agriculture depending on chemicals such as fertilizers and pesticides gave rise to questions about long-term sustainability of agriculture in relation to degradation of soil quality. Improving soil quality is prerequisite to sustain biological productivity, maintain environmental quality, and promote plant and animal health. Assessment and monitoring of the health and quality of soil is necessary to provide opportunity to evaluate and redesign soil management system for sustainability. To develop the soil quality assessment method, we collected national data on soil properties of paddy and upland and attempted to evaluate the data in aspect of soil quality by the process of selecting a minimum data set (MDS), scoring the soil properties and calculating soil quality index (SQI) integrating the score of each soil property. This approximation indicated that soil quality index was in the order of paddy soil, upland soil and plastic film house soil.

• Journal of Korean Academy of Oral and Maxillofacial Radiology
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• v.24 no.2
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• pp.279-290
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• 1994

The purpose of this study was to compare the diagnostic accuracy of periapical radiographs and their digitized images for the detection of simulated interproximal carious lesions. A total of 240 interproximal surfaces was used in this study. The case sample was composed of 80 anterior teeth, 80 bicuspids and 80 molars which were prepared in order to distribute the surfaces from carious free to those containing simulated carious lesions of varying depths (0.5㎜, 0.8㎜, and 1.2㎜). The periapical radiographs were taken by paralleling technique and film used was Kodak Ektaspeed(E group). All radiographs were evaluated by five dentist to recognize the true status of simulated carious lesion. They were asked to give a score of 0, 1, 2, or 3. Digitized images were obtained using a commercial video processor(FOTOVIX Ⅱ- XS). And the computer system was 486 DX PC with PC Vision and frame grabber. The 17' display monitor had a resolution of 1280×1024 pixels(0.26㎜ dot pitch). But the one frame of the intraoral radiograph has a resolution of 700×480 pixels and each pixel has a grey level value of 256. All the radiographs and digital images were viewed under uniform subdued lighting in the same reading room. After a week the second interpretation was performed in the same condition. The detection of lesions on the monitor was compared with the finding of simulated interproximal carious lesions on the film images. The results were as follows: 1. When the scoring criteria was dichotomous ; lesion present and not present 1) The overall sensitivity, specificity and diagnostic accuracy of periapical radiographs and their digital images showed no statistically significant difference. 2) The sensitivity and specificity according to the region of teeth and the grade of lesions showed no statistically significant difference between periapical radiographs and their digital images. 2. When estimate the grade of lesions ; score 0, 1, 2, 3 1) The overall diagnostic accuracy was 53.3% on the intraoral films and 52.9% on digital images. There was no significant difference. 2) The diagnostic accuracy according to the region of teeth showed no statistically significant difference between periapical radiographs and their digital images. 3. The degree of agreement and reliability 1) Using gamma value to show the degree of agreement, there was similarity between periapical films and digital images. 2) The reliability of each twice interpretation of periapical films and digital images showed no statistically significant difference. In all cases P value was greater than 0.05, showing that both techniques can be used to detect the incipient and moderate interproximal carious lesions with similar accuracy.