• Title/Summary/Keyword: Living concrete

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Investigation of Floor Impact Sound Levels in Rahmen Structure Multi-story Residential Buildings (라멘복합구조 공동주택의 바닥충격음 실태)

  • 정정호;송희수;전진용
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2004.05a
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    • pp.308-311
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    • 2004
  • It is reported that there is a limit in increasing heavy-weight impact noise isolation performance of the load bearing wall system apartments to meet the regulation of the Ministry of Construction and Transportation (MOCT). To increase the heavy-weight impact noise isolation performance, improvement in structural systems such as increasing concrete slab thickness and application of rahmen structure were proposed. In this study floor impact sound levels from toil apartments with two rahmen structure multi-story residential buildings were measured before the construction of the buildings finished. Measurements were made at living room and two bedrooms at each apartment when the finishing processes were finished. The average value of light-weight impact sound level from ten apartments was 56dB (L'$\sub$n,Aw/). The heavy-weight impact sound level was 44dB (L'$\sub$i.Fmax.Aw/) and the impact sound level of the impact ball was 41dB(L'$\sub$i.Fmax.Aw/), As a result floor impact noises at the rahmen structure system were lower than the regulation level.

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A Study on Embroidery Patterns of Miao Women′s Traditional Costume Guizhou Province in China (중국 귀주성 묘족 여자복식의 수증문양에 관한 연구)

  • 김영신;홍정민
    • Journal of the Korean Society of Costume
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    • v.52 no.1
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    • pp.21-36
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    • 2002
  • The Miaos have their own unique and luxurious culture traditional and modern formed as they have experienced repeated fusion into and resistance against the Han Race or the Chinese in their long and old history. Taijiang County of Guizhou Provice, in which whey have been living, is endowed with natural beauty. Thus their culture enjoys abundant and diverse contents of artificial and natural character. Naturally, their costume reflects cultural and natural features in abundance and variety. This dissertation aims to investigate the artistic character of Miaos' traditional costume as reflected in patterns for their embroidery. As for the artistic character of the patterns for embroidery, the following were found. To begin with, the space in the Miaos' embroidery is, unlike the measurable three-dimensional space found in Greek art, unmeasurable and fantastic with its beauty, majesty and peculiarity. It is as if immersed in limitless space, they were in communion with gods and universe. Another characteristic is the use of image construction beyond mere imitation. Their mode of image construction was realistic in that patterns as a whole reveal an abstract form or meaning but separately they portray visual representations of concrete thins in nature. Still another is that sense of motion conveyed by the basic curve line is full of life. It was the result of using light rhythm breaking stereotypic balance and symmetry. Finally, the colouring was abstract, and a strong contrast between black and white was gorgeous and fantastic.

Comparative Study on Body Water Rising and Heat Falling through Taoism Nae-dan thought and Traditional Korean Medicine (도교(道敎) 내단사상(內丹思想)과 한의학에서 바라본 수승화강(水升火降)의 비교 연구)

  • Lee, Ki-Hoon;Shin, Min-Kyu;Kim, Soo-Joong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.25 no.3
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    • pp.382-388
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    • 2011
  • Traditional Korean Medicine and Taoism think of the importance of a life nurturing for one's health and longevity. However, for a life nurturing, Traditional Korean Medicine aims at a person living up to one's natural life span. Taoism lays importance on ascending up to the sky to be a Taoist hermit with supernatural powers. Therefore, they both differ in the pursuit of their goals and their methods in doing respectively. In this study we have shown similarities and differences in the meaning and ways to practice su-seung-hwa-gang (body water rising and heat falling) which Traditional Korean Medicine and Taoism regard highly as a means of the practice of a life nurturing. Su-seung-hwa-gang is a concept that both Traditional Korean Medicine and Taoism set a high value on and at the same time it is a concrete method of a life nurturing demonstrating the possibility of 'non-disease treatment' through the active efforts of Traditional Korean Medicine.

A Comparison of Chinese Women's Lower Body Features in Shanghai and Hong Kong

  • Cha, Sujoung
    • Journal of Fashion Business
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    • v.17 no.6
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    • pp.141-157
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    • 2013
  • In this study, we analyzed the figure type and lower-body size of Shanghai and Hong Kong adult women in their early twenties using the data obtained from 3D whole body scanners. We also provided concrete information related to women's lower bodies, in terms of crotch width, crotch length, inseam, outseam, slope of waist, etc., among women in Shanghai and Hong Kong. The result may be useful to the Chinese apparel industry when designing trouser pants for adult women. According to the results of the factor analysis for categorizing the body shape of the lower half, 5 factors were obtained: obesity of the lower half factor, height of the lower half factor, length from waist to the crotch factor, factor related to legs, and shape of the abdomen factor. After performing a cluster analysis according to the factor analysis, three clusters were set: Cluster 1 was represented as the lower half growth type, which has a high value in height of the lower half factor and grows in the abdomen part. Cluster 2 was represented as thin legs type, which has a low value in most part compared to the length of leg bones and factors about legs that have high value. Cluster 3 was represented as the obesity type having a high value in the obesity of the lower half factor. Overall, thin legs type achieved a high rate in Shanghai adult women and obesity type received a high rate in adult women living in Hong Kong.

A Study on Residens Participation of Intentional Community in Korea (국내 계획 공동체마을의 주민 참여에 관한 연구)

  • Cho, Jeong-Hyun;Kwak, Yu-Mi;Lee, Dong-Sook;Choi, Jung-Shin
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2008.04a
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    • pp.123-128
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    • 2008
  • In Korea, a movement for founding a intentional community village is becoming popular to improve the individualistic living environment, and to create a humanistic lifestyle. However, it is difficult to say whether its management is successful or not because the intentional community village such as an eco-village is still in an experimental stage in Korea. In this study, a intentional community village was proposed as an alternative approach to help residents build an effective cooperation system and to encourage them to participate in various communal activities. Detailed cases were studied including a formation process and methods of residents' participation. Through the case study, actual conditions of the community villages and several problems were studied. The conclusion of this study is as follows; In order to sustain the community village, it is crucial to encourage the community spirit among the residents. We also find that developing various community facilities and programs can easily raise a sense of familial warmth among the residents. Above all, proactive participation in the communal activities is the most important. It is also necessary to consider the architectural design which can be used as a guiding principle for foundation of the intentional community village. In addition, concrete and systematic solutions including communal activity programs, residents education, and self management regulations must be discussed.

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The effects of the surrounding viscoelastic media on the buckling behavior of single microfilament within the cell: A mechanical model

  • Khadimallah, Mohamed A.;Safeer, Muhammad;Taj, Muhammad;Ayed, Hamdi;Hussain, Muzamal;Bouzgarrou, Souhail Mohamed;Mahmoud, S.R.;Ahmad, Manzoor;Tounsi, Abdelouahed
    • Advances in concrete construction
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    • v.10 no.2
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    • pp.141-149
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    • 2020
  • In the present study, a mechanical model is applied to account the effects of the surrounding viscoelastic media on the buckling behavior of single microfilament within the cell. The model immeasurably associates filament's bending rigidity, neighboring system elasticity, and cytosol viscosity with buckling wavelengths, buckling growth rates and buckling amplitudes of the filament. Cytoskeleton components in living cell bear large compressive force and are responsible in maintaining the cell shape. Actually these filaments are surrounded by viscoelastic media consisting of other filaments network and viscous cytosole within the cell. This surrounding, viscoelastic media affects the buckling behavior of these filaments when external force is applied on these filaments. The obtained results, indicate that the coupling of viscoelastic media with the viscous cytosol greatly affect the buckling behavior of microfilament. The buckling forces increased with the increase in the intensity of surrounding viscoelastic media.

Architectural Characteristics of Pinson Hall, Yonsei University, focused on Usage as University Dormitory from 1922 to 1944 (연세대학교 핀슨홀(Pinson Hall)의 건축적 특징 -1922년~1944년 기숙사로의 사용을 중심으로-)

  • Kim, Ki-Joo;Lee, Yeon-Kyung
    • Journal of architectural history
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    • v.28 no.3
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    • pp.55-66
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    • 2019
  • Pinson Hall is a dormitory building of Chosen Christian College, built in 1922, and it still remains comparatively well preserved as original form. This building is worthy in that it shows the living space of western style college in Korea, as well as characteristics of collegiate gothic style and building technology, designed by western architect in 1920s. At first, based on literate review and field survey, this study aims to trace the construction background and process of Pinson Hall, and find out its architectural characteristics with the original form when it is used as dormitory. Additionally, it deals with historic meaning and value of Pinson Hall as a modern western style college dormitory, through comparison with other dormitories in the same era. In conclusion, Pinson Hall is a Western style dormitory which allows students to accustom themselves to Western life style, using bed and desk, as well as it shows the new building technology in the early 1920s which has mixture of masonry and reinforced concrete structure.

ESTABLISHMENT OF SAFETY GUIDELINES FOR ELDERLY CONSTRUCTION WORKERS

  • Lee, Jeong-Cheol;Lee, Chan-Sik
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.1237-1241
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    • 2009
  • With the average life expectancy increasing thanks to better standards of living and medical technology, the number of elderly construction workers in construction sites rises every year to surpass the 450 thousand people in the construction industry (24.7% of all employees in the construction industry). Similarly, the percentage of fatal accidents involving elderly workers has stood at 41~46 percent for the past five years; note that this is significantly higher than the other age groups, making safety measures for dealing with this issue a matter of urgency. This study sought to propose appropriate safety guidelines for elderly construction workers aged 50 years and over by examining the changes in their physical and psychological functions and through the subsequent analysis of the current status and causes of fatal accidents involving them. The guidelines targeted ferroconcrete construction where accidents occur quite often; construction was classified into mold construction, reinforcing rod construction, and concrete construction. Mold construction was further classified into preparation, carry-in, processing, assembly, and disassembly, and reinforcing rod construction, into preparation/transport and processing/assembly. Safety guidelines for each process were presented by dividing them into three aspects considering the changes in the physical and psychological functions according to their ages and type of accident causes: work environment improvement, machinery and equipment improvement, and work method improvement.

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Suggestion for sustainable development of Korean traditional wooden Structure (Hanok)

  • Lee, Yunsub;Jin, Zhenhui;Seo, Nuri;Jung, Youngsoo
    • International conference on construction engineering and project management
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    • 2017.10a
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    • pp.159-166
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    • 2017
  • Recently, the wooden structure has been revived again as an eco-friendly structure technique. It is the counterattack of the wood material, which has become more recognized as a finishing material pushed by the concrete material in the rapid growth after the Industrial Revolution. However, it is difficult to conclude that this is a tendency of the construction market in the whole country. Perhaps this is a tendency to appear more strongly in Korea. It could be seen by comparing the characteristics of the overseas construction market with Korean's and the advanced constructed case of large-scale wooden structures in overseas. National wooden buildings show own characteristics such as construction methods, materials, and member dimensions of wood structures by country, which could be seen as a result of continuously developing their own technology. However, in Korea, despite its unique wooden structure and technology (Hanok; Korean traditional housing), it has not been developed continuously and treated it only as a living building exhibit. This is evidenced by the fact that only one percent of the building is constructed with traditional wooden building technology. Therefore, there are various efforts to modernize the traditional wooden structure technology, but it still does not reach the level of advanced wooden technology abroad. The characteristics of the Korean wooden building market were analyzed in order to suggest ways to develop the Korean wood structure technology. The characteristics of Hanok construction were analyzed through quantitative criteria to define the main development tasks for Hanok development to propose the long-term development path.

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Assessment on Thermal Transmission Property of Wall Through a Scaled Model Test (축소모형 실험을 통한 벽체의 열관류 측정)

  • Chang, Yoon-Seong;Kim, Sejong;Shim, Kug-Bo;Lee, Sang-Joon;Han, Yeonjung;Park, Yonggun;Yeo, Hwanmyeong
    • Journal of the Korean Wood Science and Technology
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    • v.43 no.6
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    • pp.884-889
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    • 2015
  • Appropriate evaluation of thermal insulation property of structural member and valid control of cooling/heating energy are important for improving building's energy efficiency. The typical heating system of house in Korea is the floor heating one. The radiation heating system is not only appropriate to climate and geographic conditions of Korea, but also advantageous to provide emotional comfort by the warm feeling of floor. Based on living conditions in Korea, scaled models of the wooden house and concrete house were designed. The ceiling was made of styrofoam insulation and the four sided walls and bottom were made of plywood and concrete, respectively. The floor was heated by heating film. Indoor vertical temperature distributions by floor heating system were measured by thermocouple, and surface temperatures on walls were measured by infrared thermography. Also, thermal insulation property of wooden wall was evaluated to build database for improving energy efficiency of wooden building. It is expected that collected data during tests of various types of floor and wall composition could be referenced for evaluating thermal environment of actual conditions of houses.