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CT in Penetrating Wooden Foreign Bodies of Head and Neck (공기음영으로 오인될 수 있는 두경부 영역의 관통성 나무이물에 대한 컴퓨터 전산화 단층촬영의 의의)

  • 오승철;김찬우;박병훈;강인봉;김선태;장일환;차흥억;이선규
    • Korean Journal of Bronchoesophagology
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    • v.4 no.1
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    • pp.142-147
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    • 1998
  • Retained wooden foreign bodies following penetrating trauma are a difficult diagnostic problem. However, penetrating wooden foreign bodies of head and neck have the potential for misinterpretation or failure to detect such foreign bodies on CT. Given the likelihood that such a miss will result in an abscess or neurovascular injury, we present the method with higher window settings, they had a higher attenuation with a unique striated internal architecture and different Hounsfield numbers readily differentiate air and non-air hypodense material such as fat, or possibly wood. Being aware of the potential appearance of wood, we may also find CT useful in excluding small retained fragments in postoperative patients with persistent symptoms. This article presents two cases in which wooden foreign bodies of head and neck were present with CT evaluation.

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The Suggestion about the Construction Process of the Wooden Moat Found in the Wolseong Moat 1-1 (경주 월성 1-1호 목조해자 축조과정 추정)

  • Choi, Hyang Seon;Jin, Hye Jin
    • Journal of architectural history
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    • v.32 no.3
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    • pp.21-30
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    • 2023
  • The Wolseong Wooden moat is a unique example. Which is a vertical wall made of wood. It shows a changing point how to make the wall by digging a hole and stacking stones vertically. This study tried to to make a assumption about the construction process of the wooden structure found in the Wolseong pit moat. I sorted out wooden elements and then analyzing these features and compared with the results of the excavation. After I made 3D modelling in the order to it was made. This moat is not only a function of digging up the ground to trap water, but also a technique of building structures to maintain walls. It is a valuable material that can show the woodworking engineering techniques of the Silla Dynasty.

Characteristic of Wooden Toy for Infants (유아용 목재완구의 특성분석)

  • Cho, Sook-Kyung;Noh, Eun-Ho;Yang, Seung-Hee
    • Journal of the Korea Furniture Society
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    • v.20 no.4
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    • pp.317-325
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    • 2009
  • On the ground of that toy as for infants is an important tool for education as well as play and furthermore it has a great influences on their growth and development, the present study intends to analyze the characteristics of the infant-oriented toys made of wood, the environment-friendly material. Object of the study includes the infants aged 2 to 7, and the wooden toy not only in domestic also international cases are investigated and analyzed from the point of function and design in particular, and the infant-oriented wooden toy is finally characterized. The wooden toys are classified in 5 items according to functions. There are toy helping a physical development like small muscles, toy improving the creativity, toy assisting language learning like Korean & English, toy contributing to number understanding and counting, and toy for imitation of social roles. The characteristics of the wooden toy are that the natural color & grain of wood are shown first, and also the natural texture & aroma of wood are felt secondly, and geometric design and shape are often presented thirdly, and recycling is available fourthly, and it is expensive finally. In order to revitalize the wooden toys lagging behind the cheap and diverse toys made of plastic, it is highly needed that development of the environment-friendly painting, unique design, marketing strategy of enterprises and use of domestic wood material.

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A Study on Wooden Assembly Methods Appeared in Kuma, Kengo's Works (쿠마 켄코의 건축에 나타나는 목재 접합방식에 관한 연구)

  • Uhm, Heechoon;Baik, Seung-Yeon;Park, Jin-Ho
    • Korean Institute of Interior Design Journal
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    • v.24 no.4
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    • pp.14-22
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    • 2015
  • This study deals with a comparative analysis of wooden assembly methods between Japanese traditional architecture and Kuma, Kengo's works. Kuma, Kengo has known as an architect who pursues Japanese architectural traditions with integrated solutions for built and natural environments, and expresses a deep commitment to unexpected use of materials such as stone and wood with the clarity of structural solutions. Accordingly, his architecture focuses on the appreciation of the spatial relationship with the surrounding, its local characters, and the selection of materials. This article first examines two of wooden assembly methods that have been shown in Japanese traditional architecture such as 'two-way system' and 'one-way system'. And then, Kuma, Kengo's wooden assembly methods in his works are analyzed and compared in relation to Japanese wooden assembly methods to find out similarities and differences between them. Then, it concludes that Kuma, Kengo's approach is not only relying on the methods of Japanese traditional architecture, but also exploring creative ways beyond traditional assembly methods.

A Study about the Conservation theory of Architectural Monuments -with a Focus on similar work done in Japan- (목조(木造) 건조물문화재(建造物文化財)의 보존이론(保存理論)에 관한 연구 -일본(日本) 건조물문화재(建造物文化財)의 수리사례(修理事例)를 중심(中心)으로-)

  • Kim, Wang-Jik;Lee, Sang-Hae
    • Journal of architectural history
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    • v.11 no.3 s.31
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    • pp.35-51
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    • 2002
  • This study is about the preservation of wooden buildings as cultural properties. I got the idea for preservation and repair of cultural properties of wooden buildings by watching the process of repairing them in Japan. The Japanese have been endeavored to restoring old wooden buildings to their original forms for more than a hundred years. The idea to change decayed materials into new materials or the new approach to the process of restoration used to be in conflict with the concept of 'Authenticity'--the criteria for evaluation of the value of cultural properties, based on the Western of thinking, established by UNESCO. Since 'Nara Conference on Authenticity', held in 1994 in Nara, however, the concept of 'Authenticity' has changed, and the peculiarity of certain cultural properties of the wooden buildings and their diversity of culture have now begun to be recognized by UNESCO. This is a crucial change for the study of preservation, repair and restoration of cultural properties of wooden buildings. The purpose of this study is, therefore, to look closely at the process of change of the concept 'Authenticity' and find a better method for preservation of cultural properties of wooden buildings.

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A Study on the Relations between Wooden Toy and Development of Infant and Young Children

  • Yang, Seung-Hee;Lee, Mi-Hye
    • Journal of the Korea Furniture Society
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    • v.21 no.3
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    • pp.261-272
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    • 2010
  • The aim of the present study was to investigate the relations between wooden toy and development of infant and young children by taking only the commercialized wooden furniture which would be suitable for the developmental area for infant and young children, among the physical environment influencing the balanced development and development for them. The recommended standard for them was the commercialized good and the only advanced toys for the development of infant and young children was primary selected, in case of different furniture for same purpose with regardless of manufacturer, country of origin and price. The selected wooden toys for development of infant and young children covered the following test conditions. They keep the soft and clean surfaces and the corners are the round-finished so safe. The dyeing and coloring are so clear like the rainbow-colored in compliance with the international safety norm, and the paint material used are harmless to the people, because they have already passed the European Safety Norm EN 71 which is the most authoritative and strict standard in the world and contained accordingly little heavy metals, toxic substances and also allergy pigment under the maximum permissible standard. The size of wooden toys are not small enough for infant and young children to be able to swallow and this is important check point, because infants tend to feel the object in their own touching and therefore to have everything to the lip. The paint used was the toys-oriented goods and proved by the test regarding saliva and sweat.

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A study on investigation in damage sector of Wooden Cultural propertices-Housing Sin Keom Dang of MakokSa & Kim, Joo Tae's house (목조문화재 파손요인에 관한 연구-마곡사 심검당, 김주태 가옥)

  • Kim, Sa-Dug;Lee, Young-Hee;Yoon, Hee-Sang
    • 보존과학연구
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    • s.15
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    • pp.104-127
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    • 1994
  • Traditional architecture has structural limits after some terms because it almost made by wood elements. So in the name of 'Restoration', by anatural process, repair works are accomplished. But the repair works of traditional buildings have some problems in spite of best men power and technology. To overcome this problems, we need more detailed studies for examine the reasons of destruction in elements of wooden buildings. The life limits of wooden buildings are caused by natural circumstances and humanic circumstances, the former has bad effect on the damage in wooden buildings. There are various elements of damage in the wooden buildings, earthquake, the falling of a thunderbolt, fire, and rain, microorganism, insect, and so on. Moreover pollutions-sulfurous acid gas, acidorganic matters -are important reason of shortening the life of wooden buildings. From 1981 till now we investigated important traditional buildings under repair works by the way scientific analysis to catch the sample - seramics, woods, insects, metals, etc. In this reports we suggest various method of investigation with two samples of tradional house made by wood, one is Kim Joo Tea House, the order is Simgum-dang of Magok-Sa(dwelling of monk).

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A Method for Correcting English Vowel Pronunciation by Wooden Chopsticks (나무젓가락에 의한 영어모음 발음교정 방안)

  • Yang, Byung-Gon
    • Phonetics and Speech Sciences
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    • v.2 no.4
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    • pp.51-58
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    • 2010
  • English vowels play an important role in the daily communication between Korean students and international visitors. However, many Korean students still have difficulty producing them distinctively. Vowels vary according to shapes of oral and pharyngeal cavities, which are mainly determined by the degree of jaw opening and tongue position. Yang (2008a) proposed a simplified chart of English and Korean vowels for an educational purpose. He also suggested to use wooden chopsticks to secure distinguishable jaw openings. The purpose of this study is to tap whether wooden chopsticks can be applicable to a method for correcting English vowel pronunciation. Twelve male and female students participated in the recordings of eight /hVd/ words followed by additional recordings with wooden chopsticks between upper and lower teeth. The first and second formant trajectories of both natural and controlled vowel productions were obtained and compared at six equidistant measurement points using Praat. Results showed that the formant values of natural vowel productions were comparable to those of controlled productions. Vowels with similar formant trajectories of male students were separated with the aid of chopsticks. The width of each chopstick could be controlled similarly in the experiment. The author concludes that wooden chopsticks can be useful to correct vowel pronunciation. Further studies are desirable for native speakers to make perceptual evaluations of controlled vowel productions by nonnative speakers.

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A Study on Furniture Design Using By-product of Wood Furniture (목재가구 부산물(副産物)을 활용한 가구디자인 연구)

  • Jung, Jaenah;Yoon, Yeoh-hang
    • Journal of the Korea Furniture Society
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    • v.27 no.1
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    • pp.15-25
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    • 2016
  • Increasing concerns of environment need to make change furniture field to more environmentally friendly approach, such as reuse of by-products from wooden products. As it is, the methods of recycling wood for industrial purposes have the advantage of productivity and adaptability. However, the industrial way is required a certain production facility of processing wooden by-products and has possible hygienic problems due to contaminated sources. Many designers have developed their own methods for reuse of wood in unique and artistic ways. Even so, because of confined sources, it could be not enough supply. Therefore, I developed the design methodology utilizing wooden by-products from S Design Company to relieve former ways' problems. The design suggestion took materials from a safe and abundant source. The wooden leftover pieces were connected together with epoxy clay, so previous process traces of furniture are remained as a decorative factor. Moreover, the synthesized material was able to be processed by ordinary woodworking facilities without additional installations. In doing so, console table focused on a commercial purpose and dining table for an artistic objective were successfully fabricated as final suggestions. In consideration of the proposal using wooden furniture leftovers, diverse recycling designs should be investigated for future reference.

Infrared Irradiation and Conservation Treatment of Wooden Fish Excavated from Wiryeseong Fortress on Seonggeosan Mountain in Cheonan (천안 성거산 위례성 출토 목어의 적외선 조사 및 보존처리)

  • Jo, Sangyoon;Kim, Soochul
    • Conservation Science in Museum
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    • v.26
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    • pp.13-24
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    • 2021
  • Two wooden fish excavated from Wiryeseong Fortress on Seonggeosan Mountain in Cheonan-si, Chungcheongnam-do Province were frail due to their deterioration within the burial environment. To prevent further deformation, conservation treatment was conducted on them to strengthen the wooden materials and stabilize the dimensions. Prior to the conservation treatment, the species of wood was determined to be pine and infrared Irradiation on the patterns remaining on the wooden fish revealed that they were depictions of carp. For conservation treatment, the wooden fish were impregnated with PEG #3, 350 in a water solution with a 40% concentration, followed by freeze-drying.