• Title/Summary/Keyword: Special bridge

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A Research on the Shamanistic Medical Activities of the Traditional Chinese Classics in the Zhou Dynasty (양주전세문헌소견지의료무술고찰(兩周傳世文獻所見之醫療巫術考察))

  • Cho, Yong-Jun;Baik, You-Sang
    • Journal of Korean Medical classics
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    • v.26 no.4
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    • pp.341-354
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    • 2013
  • Objective : The main idea of this article is to investigate the shamanistic medical activities through the traditional Chinese classics in the Zhou Dynasty. The ancient shaman played a bridge role between human beings and supernatural things like ghosts. Even though he didn't have the super power, the ancients believed that he could take care of all kinds of illness. Therefore, it can be said that the medicine of the Zhou Dynasty was still under the shamanism although it had already started to be specialized and professionalized. Method : This article is going to look into the detailed aspects of the shamanistic medical activities, for example, divination of illness, Zhuyou(祝由), shamanistic preventive medicine, and so on, through the traditional Chinese classics of Zhou Dynasty. Result : The medical knowledge of that time stayed in the early stage, so it was simple and raw. Also it had scientific and unscientific characters in itself at the same time. That's why it could be included in the shamanism. And about the shamanistic medical activities seen on underground written attestations, they will be offered through another article of mine, entitled A Research of Shamanistic Medical Activities on Underground Written Attestations in the Zhou Dynasty(兩周出土文獻所見之醫療巫術考察), which is being written now. Conclusion : From beginning of the Eastern Zhou period, the medicine gradually got to be specialized. And then specialized medical treatments and shamanistic medical activities began to be divided as the different two occupations. However, it is an unchangeable truth that the ancient shaman played an important role in the Chinese traditional medicine. Therefore, it can be said that he was in the very special position in the Chinese traditional medicine.

A Simple Method of Obtaining Exact Values of the Natural Frequencies of Vibration for Some Composite Laminated Structures with Various Boundary Condition (다양한 경계조건을 갖는 복합적층판의 간편한 고유진동수 해석방법)

  • Won, Chi Moon
    • Journal of Korean Society of Steel Construction
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    • v.14 no.1
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    • pp.23-29
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    • 2002
  • Many of the bridge systems, including the girders and cross-beams, and concrete decks behave as the special orthotropic plates. Such systems with boundary conditions other than Navier or Levy solution types, or with irregular cross sections, analytical solution is very difficult to obtain. Numerical method for eigenvalue problems are also very much involved in seeking such a solution. A method of calculating the natural frequency corresponding to the first mode of vibration of beam and tower structures with irregular cross-sections was developed and reported by Kim in 1974. Recently, this method was extended to two dimensional problems including composite laminates, and has been applied to composite plates with shear deformation effects. In this paper, application of this method to the specially orthotropic laminated plates with various boundary condition is accomplished and the result of analysis is presented.

Experimental study on nano silica modified cement base grouting reinforcement materials

  • Zhou, Fei;Sun, Wenbin;Shao, Jianli;Kong, Lingjun;Geng, Xueyu
    • Geomechanics and Engineering
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    • v.20 no.1
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    • pp.67-73
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    • 2020
  • With the increasing number of underground projects, the problem of rock-water coupling catastrophe has increasingly become the focus of safety. Grouting reinforcement is gradually applied in subway, tunnel, bridge reinforcement, coal mine floor and other construction projects. At present, cement-based grouting materials are easy to shrink and have low strength after solidification. In order to overcome the special problems of high water pressure and high in-situ stress in deep part and improve the reinforcement effect. In view of the mining conditions of deep surrounding rock, a new type of cement-based reinforcement material was developed. We analyses the principle and main indexes of floor strengthening, and tests and optimizes the indexes and proportions of the two materials through laboratory tests. Then, observes and compares the microstructures of the optimized floor strengthening materials with those of the traditional strengthening materials through scanning electron microscopy. The test results show that 42.5 Portland cement-based grouting reinforcement material has the advantages of slight expansion, anti-dry-shrinkage, high compressive strength and high density when the water-cement ratio is 0.4, the content of bentonite is 4%, and the content of Nano Silica is 2.5%. The reinforcement effect is better than other traditional grouting reinforcement materials.

The sound analysis of (<이야기 속의 이야기> 사운드 분석)

  • Mok, Hae-Jung
    • Cartoon and Animation Studies
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    • s.20
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    • pp.87-104
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    • 2010
  • Animation creates meaning and affection by combinig image and sound like film. directed by Yuri Norstein is a good text for analyzing animation sound in that it combines image and various music and sound effects well. This study focuses on analyzing the way that sound function to make meaning in this text. Generally sound is categorized into dialogue, music, and sound effect. And animation has its own characteristic in each category. The voice for dialogue is created corresponding to the image of the character and the rhythm is very important in Animation. Plus Sound effect in animation can be said to mimic not just sound but also movement. This study analyzes sound based on three sound factors and the concepts of the point of listening, subjective sound, and sound bridge. Subjective sound using the point of listening of the wolf and the baby bestows a special position on the main characters in the text. It is the overall characteristic of the sound use of this text that the repetitive combination of sound and image, the linguistic and annotative function of sound effect, and comparatively conventional use of music and sound effect enhance the affection and readability.

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A Case Study of the Underwater Blasting Using Emulsion Explosives (에멀젼폭약을 사용한 수중발파 사례)

  • An, Bong-Do;Lee, Ik-Joo;Heo, The-Moon
    • Explosives and Blasting
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    • v.25 no.2
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    • pp.71-78
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    • 2007
  • In many cases of underwater blasting in South Korea, the special blasting is mainly used for deepening harbor, installing gas pipes, or well blasting to build a bridge. The procedure of well blasting is almost same with shaft blasting, but the difference is that water is filled in before blasting. In case of deepening blasting under water, the first step like drilling, arranging explosives, and wire connection is done on a barge, then the next step such as charging and tamping is accomplished under water by expert divers. Therefore, underwater blasting needs precise and exact plan before blasting. In this paper, authors would like to introduce a case of underwater blasting for deepening the Busan new port with emulsion explosives and non-electric detonators in order to get some of 8,500TEU out sized container vessels entered into the port and to make safe. Considering environment and vibration, the blasting was controlled to minimized the damage to the lighthouse nearby. It will be great help to many other blasting sites where emulsion explosives and non-electric detonators are used for underwater blasting through this case.

Study on Elasto-Plastic Behavior of Column to Beam Connection with 600MPa High Performance Steel(SM 570 TMC) (기둥-보 용접접합부의 보단부 스캘럽형상과 탄소성 거동에 관한 실험적 연구 - 600MPa(SM570TMC)의 경우 -)

  • Kim, Jong Rak;Kim, Seung Bae;Kwon, June Yeop
    • Journal of Korean Society of Steel Construction
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    • v.20 no.6
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    • pp.691-700
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    • 2008
  • Contemporary architectural structures have diverse and complex forms. Such structural variety demands requisite performance from the connections in the steel structure so that the latter could resist a horizontal force, such as an earthquake. The connections are the all-important components that create the discontinuous form and that support stress concentration, determining the stiffness and toughness of the entire steel frame. In this study, a real-scale column-to-beam connection was constructed in the 600MPa-grade high-strength and high-performance steel, to test its behavior. Its material and welding characteristics were examined in this study, and its structural performance was analyzed by conducting seismic-resistance tests on the full-scale, cross-shaped column-to-beam welded connections with non-scallop, ordinary-scallop, and reinforced-scallop details. The weld ability of the high-strength, high-performance steel was also evaluated, and data regarding the seismic design for practical application were provided.

A Study on the Formative Characters of Art Deco - Especially Analyzed in War and Peace - (ART DECO의 조형성에 관한 분석 연구 - '전쟁과 평화'에서 살펴본 입장을 중심으로 -)

  • 박규현
    • Archives of design research
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    • v.12 no.1
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    • pp.85-94
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    • 1999
  • It is very signigicant to study a dominant drift of the contemporary formative art. And it's research not only gives us a great pleasure of study but also will be a big help for designers to study how the dominant drift of the contemporary art has developed thereafter, and what it has influenced upon the following formative movement of it. In this sense I think I cannot emphasize it too strong that I gave a subtitle 'Especially analyzed in War and Peace' do my paper because we can find a real aspect of the formative movement rather by sociological point of view than by formative art itself. In this sense, 1 selected Art Deoo as a thesis of research among other things because Art Deco developed socially in respond to general pressure to adapt to modem World, specially, was a stage in an already burgeoning revolution in the decorative arts. Through this sociological point of view on Art Deco I found lots of things worthwhile to research it Art Deco, which I think shows us a special aspect of the sandwich culture between both world wars in Europe, played the important role of a bridge likning its peculiar style with those of contemporary arts in Europe. In this paper the sociological research of Art Deco style will reveal what the European's emotions meant in the socio-psychological circumstances of Deco between both world wars, and where the peculiarity of Art Deco style came from, and especially why the colors of Art Deco was so gorgeous as called 'color for color's sake'. I tried to put the importance of research of Art Deco largely on the sociological or socio-psychological points of view not on the only formative viewpoints. I could draw a conclusion that Art Deco has a contradictive duplicity in its style that can be expressible in a word like 'naivety in gorgeousness, simplicity in complexity, orderliness in confusion, and peacefulness in noisiness'.

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Problems of Insufficient Detailed Inspection and Precision Safety Diagnosis and the Improving Direction for the Evaluation System (부실 정밀점검 및 정밀안전진단의 문제점과 평가제도의 개선방향)

  • Ha, Myung Ho;Park, Jong Sup
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.15 no.5
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    • pp.160-168
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    • 2011
  • As importance of the field of maintenance and management come to the fore because of collapses of the Seongsu bridge and the Sampoong department store, "Special Act for the Safety Control of Public Structures" was established in 1995 and the major maintenance and management system began taking effect "Detailed inspection and Precision safety diagnosis". However, a technical standard of "Detailed inspection and Precision safety diagnosis" was low because its history was not long, and also the results of research were not enough so anxiety for "Insufficient Detailed inspection and Precision safety diagnosis" was continuously left. While its evaluation system introduced in 2002, the ratio of "Insufficient Detailed inspection and Precision safety diagnosis" has been getting lower. However, according to the evaluation result after carrying out "Detailed inspection and Precision safety diagnosis" recently, it seems difficult to become lower for the ratio of "Insufficient Detailed inspection and Precision safety diagnosis" in future. Therefore, it is considered of questionary survey of the concerned organization and the mechanism side in connection with "Insufficient Detailed inspection and Precision safety diagnosis". So it is arranged the fundamental problems caused by an "Insufficient Detailed inspection and Precision safety diagnosis" that is to show the improving direction of the existing evaluation system in a based on this.

A Study on ${\ulcorner}Buin-daejeon-yangbang(婦人大全良方){\lrcorner}$ (${\ll}$부인대전량방(婦人大全良方)${\gg}$ 에 관한 연구)

  • Oh, Soo-Seock;Lee, Tae-Kyun;Kim, Dong-Il
    • The Journal of Korean Obstetrics and Gynecology
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    • v.15 no.4
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    • pp.76-97
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    • 2002
  • Buin-daejeon-yangbang is one of the special book on the traditional eastern medicine(T.E.M) Ob&Gy in Song dynasty. It remains very important book of the department of the Ob&Gy in today's T.E.M. There are a good deal of the useful theories and prescriptions about clinical Ob&Gy in it. Chen-zi-ming(陳子明) was a very famous Ob&Gy doctor and professor on T.E.M who came from Lincuan Jingxi(江西 臨川) province China in the South-Song dynasty. He was born in AD 1190, was died in AD 1270. Buin-daejeon-yangbang was written by him in AD 1237 and remained several kinds of edition now. It takes form total 8 volumes, 24 chapters. There are more than 260 medical references and 1500 prescriptions in it. And the formation of the book which the arrangement of theories and prescriptions is to keep in order. But it has some unreasonable and superstitious contents too. It performed as a bridge which link the results of pre-Song dynasty about clinical T.E.M Ob&Gy and after-Song dynasty about that. So it is a grandfather of a book for about clinical T.E.M Ob&Gy as following books like Gyoju-Buin-daejeon-yangbang, Yeougwa-Jeungchi-Junsung and Jeieum-Gangmock.

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Multi-Secondary Transformer: A Modeling Technique for Simulation - II

  • Patel, A.;Singh, N.P.;Gupta, L.N.;Raval, B.;Oza, K.;Thakar, A.;Parmar, D.;Dhola, H.;Dave, R.;Gupta, V.;Gajjar, S.;Patel, P.J.;Baruah, U.K.
    • Journal of international Conference on Electrical Machines and Systems
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    • v.3 no.1
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    • pp.78-82
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    • 2014
  • Power Transformers with more than one secondary winding are not uncommon in industrial applications. But new classes of applications where very large number of independent secondaries are used are becoming popular in controlled converters for medium and high voltage applications. Cascade H-bridge medium voltage drives and Pulse Step Modulation (PSM) based high voltage power supplies are such applications. Regulated high voltage power supplies (Fig. 1) with 35-100 kV, 5-10 MW output range with very fast dynamics (${\mu}S$ order) uses such transformers. Such power supplies are widely used in fusion research. Here series connection of isolated voltage sources with conventional switching semiconductor devices is achieved by large number of separate transformers or by single unit of multi-secondary transformer. Naturally, a transformer having numbers of secondary windings (~40) on single core is the preferred solution due to space and cost considerations. For design and simulation analysis of such a power supply, the model of a multi-secondary transformer poses special problem to any circuit analysis software as many simulation softwares provide transformer models with limited number (3-6) of secondary windings. Multi-Secondary transformer models with 3 different schemes are available. A comparison of test results from a practical Multi-secondary transformer with a simulation model using magnetic component is found to describe the behavior closer to observed test results. Earlier models assumed magnetising inductance in a linear loss less core model although in actual it is saturable core made-up of CRGO steel laminations. This article discusses a more detailed representation of flux coupled magnetic model with saturable core properties to simulate actual transformers very close to its observed parameters in test and actual usage.