• Title/Summary/Keyword: long term means

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The effects of Korean music Pansori Sugungga on mental health sung by Dong-jin Park

  • Ko, Kyung Ja;Hwang, Sung Yeoun
    • CELLMED
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    • v.7 no.1
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    • pp.5.1-5.3
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    • 2017
  • The purpose of this article is to show that satire through Sugungga is beneficial for the mental health of people. Dong-jin Park is one of the greatest singers of Han Ak (Korean music, 韓樂). He is an authentic singing master through long-term training, which explains why his cheerful voice will certainly allow us to become unburdened. The story of Pansori Sugungga is akin to that of David and Goliath, the art of battling giants but a Korean version. Satire is a technique found in Pansori, Korean epic songs which use humor as a cover for more serious social criticism. Koreans have believed that outbursts of sentiment through satire are good for their mental health. For a long time, these singers have entertained Koreans with political satire and indirect counter-drives. Pansori Sugungga's keen wit and satire have earned the love of Koreans. Koreans want vivid descriptions and surprising turns that end with catharsis through Sugungga and are therefore thrilled with Sugungga. Therefore, Sugungga in Han Ak (Korean music, 韓樂) is a good means of music therapy for better mental health.

Possibility of Chaotic Motion in the R&D Activities in Korea

  • Loh, Jeunghwee
    • Journal of Information Technology Applications and Management
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    • v.21 no.3
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    • pp.1-17
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    • 2014
  • In this study, various characteristics of R&D related economic variables were studied to analyze complexity of science and technology activities in Korea, as reliance of R&D activities of the private sector is growing by the day. In comparison to other countries, this means that it is likely to be fluctuated by economic conditions. This complexity characteristic signifies that the result of science and technology activities can be greatly different from the anticipated results - depending on the influences from economic conditions and the results of science and technology activities which may be unpredictable. After reviewing the results of 17 variables related to science and technology characteristics of complex systems intended for time-series data - in the total R&D expenditure, and private R&D expenditure, numbers of SCI papers, the existence of chaotic characteristics were. using Lyapunov Exponent, Hurst Exponent, BDS test. This result reveals science and technology activity of the three most important components in Korea which are; heavy dependence on initial condition, the long term memory of time series, and non-linear structure. As stable R&D investment and result are needed in order to maintain steady development of Korea economy, the R&D structure should be less influenced by business cycles and more effective technology development policy for improving human resource development must be set in motion. And to minimize the risk of new technology, the construction of sophisticated technology forecasting system should take into account, for development of R&D system.

Forecasting the Effect of Global Warming on the Water Temperature and Thermal Stratification in Daecheong Reservoir (지구온난화가 대청호 수온 및 성층구조에 미치는 영향예측)

  • Cha, Yoon Cheol;Chung, Se Woong;Yoon, Sung Wan
    • Journal of Environmental Impact Assessment
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    • v.22 no.4
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    • pp.329-343
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    • 2013
  • According to previous studies, the increased air temperature can lead to change of thermal stratification structure of lakes and reservoirs. The changed thermal stratification may result in alteration of materials and energy flow. The objective of this study was to predict the effect of climate change on the water temperature and stratification structure of Daecheong Reservoir, located in Geum River basin of Korea, using a three-dimensional(3D) hydrodynamic model(ELCOM). A long-term(100 years) weather data set provided by the National Institute of Meteorological Research(NIMR) was used for forcing the 3D model. The model was applied to two different hydrological conditions, dry year(2001) and normal year(2004). It means that the effect of air temperature increase was only considered. Simulation results showed that the surface water temperature of the reservoir tend to increase in the future, and the establishment of thermal stratification can occur earlier and prolonged longer. As a result of heat flux analysis, the evaporative heat loss can increase in the future than now and before. However, the convective heat loss and net long wave radiation from water surface decreased due to increased air temperature.

An Experimental Study on Compressive Loading Capacity of PCT System (PCT System의 압축내하력에 관한 실험적 연구)

  • Han, Man-Yup;Kim, Jae-Hong;Kang, Sang-Hun;Jin, Kyung-Seok;Jeon, Yong-Sik;Cho, Byung-Ku
    • Proceedings of the Korea Concrete Institute Conference
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    • 2008.11a
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    • pp.41-44
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    • 2008
  • The PCT that supports the walls of long span temporary shoring facility is previously manufactured in the way of prestressing, and it which is composed of concrete is improved precast structure to satisfy enough stiffness. The components of PCT are manufactured as a fixed form, and they are close to the inner side of the wall of temporary shoring facility by fixed means in PCT. PCT system as support structure is that the ends of concrete filled segment members are united by the means of connection and also they have connection hole. In this study, PCT has enough bearing power for the long span temporary shoring facility, and also make the term of work reduce due to that the time of curing reduce through the method of precast.

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Long-Term Behavior of Composite Continuous Beams With Flexible Shear Connectors (슬립을 고려한 강합성 연속보의 장기거동해석)

  • 최동호;김호배;이동혁;고상은
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2000.04b
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    • pp.141-149
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    • 2000
  • This study performs the elastic and viscoelastic analysis of composite continuous beams with flexible shear connectors. Due to creep and shrinkage of the concrete part, the stress redistribution between the concrete slab and steel beam, and the evolution of the redundant restraint reaction occur with time. Using the equation of equilibrium, internal and external compatibility condition, and constitutive relationships, mathematical formulations are formulated. The solution is obtained by means of numerical step-by-step techniques and the finite difference method. Numerical parametric studies are performed to evaluate the stress redistribution, and the evolution of the redundant restraint reaction. The parameters include the stiffness and spacing of shear connectors, the age of concrete at loading, and the relative humidity.

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Shear-lag effect in twin-girder composite decks

  • Dezi, Luigino;Gara, Fabrizio;Leoni, Graziano
    • Steel and Composite Structures
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    • v.3 no.2
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    • pp.111-122
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    • 2003
  • The paper presents a model for analysing the shear-lag effect on the slab of twin-girder composite decks subjected to static actions, support settlements and concrete shrinkage, which are the main actions of interest in composite bridge design. The proposed model includes concrete creep behaviour and shear connection flexibility. The shear-lag in the slab is accounted for by means of a new warping function. The considered actions are then applied to a realistic bridge deck and their effects are discussed. The proposed method is utilised to determine the slab effective widths for three different width-length ratios of the deck. Finally, a comparison between the results obtained with the Eurocode EC4-2 and those obtained with the proposed model is performed.

Composite and Porcelain Laminates and Veneers/Clinical Choice of Materials and Techniques

  • Wei, Stephen-H.
    • Proceedings of the KACD Conference
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    • 2002.11a
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    • pp.719-719
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    • 2002
  • Aesthetic and cosmetic dentistry is becoming a major source of the dentists practice and source of income. Patients are demanding dentists to improve and enhance their appearance and function by means of aesthetic contouring and orthodontics and are willing to pay for such services. This creates a challenge for the dental profession to gain more knowledge and skill in this important area of their practice. Ceramic and composite veneers provide a comprehensive solution to the dentition that are severely hypoplastic or deeply stained by the ingestion of tetracycline during tooth development. A large number of dental materials and new techniques are now available that will render extremely satisfactory and beautiful solutions to these previously unsightly dentitions. This presentation will present the most commonly used dental materials and techniques of fabrication of composite and porcelain veneers. Using clinical cases, the step by step cavity preparations.Impression taking, laboratory fabrication, clinical try-in and cementation materials and techniques and repairs of broken veneers as well as long term follow up will be presentedesented

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ISO9000 Certification Effect: Evidence from China

  • Liu, Yumin
    • International Journal of Quality Innovation
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    • v.9 no.3
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    • pp.15-27
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    • 2008
  • As a sign of international quality system, ISO9000 certification has been adopted by more and more enterprises. In recent five years, there have been 560,000 certified companies in Europe and America, and there have been more than 390,000 ones in China. It has being attracted many quality scholars' attentions whether ISO9000 certification can bring more benefits to certified companies or not. This paper investigates the ISO9000 certification effect on market performance by the samples from Chinese list companies in shanghai stock exchange. Considering ISO9000 certification as an event, a certification effect model will be set up by means of the event study method, which takes abnormal return rate as a basic indicator to measure the ISO9000 certification effect on Chinese market performance in different event times. Investigation results show that the Chinese certified companies have some positive effects on market performance in the short term. From a long standpoint, the relation between certification and performance has a positive trend.

A Case Study on the Reinforcement Method of Subway Tunnel (도심지 지하철 터널의 지반보강공법 시공사례 연구)

  • 천병식;여유현;최현석
    • Proceedings of the Korean Geotechical Society Conference
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    • 1999.10a
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    • pp.201-208
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    • 1999
  • The NATM(New Austrian Tunnelling Method) has been used for tunnelling since 1980's. But Collapses of tunnel under construction take place frequently, especially at urban areas because of adjacent buildings, underground conduits and traffic loads. This paper is a case study on the reinforcement method of subway tunnel at urban areas. In this study, ground inspection, geological investigation, laboratory test and numerical analysis by means of FDM program were carried out. The tunnel excavation was stopped because of over excessive brake of tunnel crown and shotcrete was installed to prevent deformation of adjacent ground as the temporary method. From the result of field survey and geological investigation, it is found that the soft weathered soil was distributed to the ground of tunnel invert unlike original investigation. The results of the analysis and the study show that the SGR(Space Grouting Rocket) method and Umbrella method can be applied for the stability of tunnel excavation and in addition the reinforcement of concrete lining is required for long-term stability of tunnel.

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Synthesis and Antibacterial Activity of Polyacrylic Acid (PAA)-Sulfacetamide (Polyacrylic acid(PAA)-Sulfacetamide 의 합성과 항균성)

  • 김종완;김용렬;이우윤
    • Journal of Environmental Health Sciences
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    • v.27 no.1
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    • pp.106-111
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    • 2001
  • Recently there were many studies not only to enhance drug delevery effect but to reduce side effect. Drug delivery system efficiency with decreasing side effect of drug dosage. It made possibility to use for a long term. Polymer drug was prepared by acid halide method with polymer in such of polyacylic acid and sulfacetamide. Its chemical properties were identified by means of IR, TGA. The antibacterial activities of polymer drug were studied by MICs and disk susceptivility test. The antibacterial activities by clean zone were increased in order of Staphyloccus aures

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