• 제목/요약/키워드: POST

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Application of Post-Tension Technology on Tall Buildings

  • Chung, Kwangryang;Park, Jungwoo;Kim, Younghye;Kim, Dohun
    • 국제초고층학회논문집
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    • 제6권3호
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    • pp.285-296
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    • 2017
  • It's been a decade since post-tension system began to be applied in earnest to buildings in Korea. In the meantime, post-tension system has been used in various buildings as main structural system including tall buildings. And post-tension system plays a role to overcome architectural limit of regular RC tall buildings particularly in the realization of long span with shallower depth than other structural system. The post-tensioned building market of Korea has been steadily grown in recent years with such advantage. Recently, post-tension technology is adapted for special structural members like belt walls. In this paper, the authors would like to explain design and construction of tall buildings in Korea using post-tension technology.

Post-translational Modifications and Their Biological Functions: Proteomic Analysis and Systematic Approaches

  • Seo, Ja-Won;Lee, Kong-Joo
    • BMB Reports
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    • 제37권1호
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    • pp.35-44
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    • 2004
  • Recently produced information on post-translational modifications makes it possible to interpret their biological regulation with new insights. Various protein modifications finely tune the cellular functions of each protein. Understanding the relationship between post-translational modifications and functional changes ("post-translatomics") is another enormous project, not unlike the human genome project. Proteomics, combined with separation technology and mass spectrometry, makes it possible to dissect and characterize the individual parts of post-translational modifications and provide a systemic analysis. Systemic analysis of post-translational modifications in various signaling pathways has been applied to illustrate the kinetics of modifications. Availability will advance new technologies that improve sensitivity and peptide coverage. The progress of "post-translatomics", novel analytical technologies that are rapidly emerging, offer a great potential for determining the details of the modification sites.

Market Mavenism and Post-Purchase Satisfaction/Dissatisfaction of Apparel Shoppers

  • Ju, Naan;Park, Jee-Sun;Lee, Kyu-Hye
    • International Journal of Costume and Fashion
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    • 제14권2호
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    • pp.51-65
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    • 2014
  • With growing competition and increasing consumer demands, companies pay more attention than ever to market mavens who play a central role in diffusing marketplace information and influencing others' decisions. To enhance our understanding of the market maven, this paper examines the role of market mavenism in shaping consumers' shopping values (utilitarian value, hedonic value) and their post-purchase satisfaction or dissatisfaction. Regression analyses revealed that market mavenism had a positive impact on hedonic shopping values, and post-purchase satisfaction. The findings showed that hedonic shopping values had a significant impact on post-purchase satisfaction while utilitarian shopping value did not have any significant relationship. Findings of the study also suggest that market mavens pursue hedonic shopping values and exhibit greater post-purchase dissatisfaction than others. Practitioners are recommended to create entertaining retail environments for market mavens who seek hedonic values when they shop. The results also suggest that practitioners need to pay close attention to market mavens at the post-purchase stage since they can be extremely dissatisfied.

포스트텐션 콘크리트 보에서 비부착 외부강봉의 응력 (Stress of External Steel Rod in Post-Tensioned Concrete Beam)

  • 이수헌;강현구;신경재
    • 한국공간구조학회논문집
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    • 제15권1호
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    • pp.47-55
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    • 2015
  • This paper shows the simplified equation to predict the ultimate moment capacity and corresponding rod stress in reinforced concrete beam with external post-tensioning rods. Because the stress of external post-tensioning rod depends on the beam deflection, the previous analytical model for post-tensioned beams requires a tedious iteration process. Also, the stress equations in ACI code or other researchers' models are suitable only for internal tendons in concrete beams. In this study, given the lack of analytical approaches to predict the nominal stress of the external unbonded rod, a simple and robust equation has been proposed for externally post-tensioned concrete beams. It is concluded that the proposed equation predicted the stress of external steel rods in post-tensioned concrete beams reasonably well.

후기 산업주의 디자인과 그 트렌드에 관한 연구 (A Study on the Post-Industrial Design and the Trends)

  • 윤영화
    • 디자인학연구
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    • 제17권1호
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    • pp.191-200
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    • 2004
  • After the Industrialism, long-lasting issues about Post-Industrialism have closely been associated with our daily lives. The keyword of Post-Industrialism could be regarded as Immateriality, which is represented by service, Information and knowledge. In the Post-Industrial society, the major role of Post-Industrial design trend is a mediator to deliver the immateriality to users. Additionally, the maturity of technologies and product life cycle have leaded users to the design trend that is free from the technologies and functions of products. In this context, the most powerful trend of the Post-Industrial design could be "metaphor design" and "poetic dimension". The similarity of these two styles is situated in the romanticism -reflection of symbol and metaphor. However, the appearance of Apple's iMac in 1998, poetic dimension, which uses transparent plastic and colourful, pleasurable 'blobjects' has dominated the post-industrial design trend.

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Fiber-reinforced composite post removal using guided endodontics: a case report

  • Changgi Cho ;Hyo Jin Jo ;Jung-Hong Ha
    • Restorative Dentistry and Endodontics
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    • 제46권4호
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    • pp.50.1-50.8
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    • 2021
  • Although several techniques have been proposed to remove fiber-reinforced composite (FRC) post, no safe and efficient technique has been established. Recently, a guided endodontics technique has been introduced in cases of pulp canal obliteration. This study describes 2 cases of FRC post removal from maxillary anterior teeth using this guided endodontics technique with a dental operating microscope. Optically scanned data set from plaster cast model was superimposed with the data set of cone-beam computed tomography. By implant planning software, the path of a guide drill was selected. Based on them, a customized stent was fabricated and utilized to remove the FRC post. Employing guided endodontics, the FRC post was removed quickly and safely with minimizing the loss of the remaining tooth structure. The guided endodontics was a useful option for FRC post removal.

건설공사 사후평가결과보고서 표준화 방안 (Standardization for Post-Construction Evaluation Report)

  • 김경훈;이찬규
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 봄 학술논문 발표대회
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    • pp.289-290
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    • 2023
  • According to relevant laws, in the case of a construction project with a total construction cost of 30 billion won or more, a post-construction evaluation must be performed after completion. In addition, a post-construction evaluation report must be prepared and entered into the Continuous Acquisition & Life-cycle Support(CALS). As a result of reviewing the currently accumulated post-construction evaluation reports, since the report is not standardized, it is difficult for public project owners to write the report. It also hinders the post-construction evaluation and management center from verifying contents, analyzing data, and deriving meaningful results. In order to improve the convenience of the public owners who must conduct post-construction evaluations and the work efficiency of the center, evaluation factors were standardized and a standard post-construction evaluation report format for road construction was developed in Excel. Through this, the data in the reports will be effectively accumulated, managed, and analyzed, so that meaningful results will be produced and be helpful in future construction work.

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건설공사 사후평가 제도 활성화 방안 수립 (Strategies for Facilitating Post-Construction Evaluation and Management System)

  • 이강욱
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 봄 학술논문 발표대회
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    • pp.379-380
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    • 2023
  • The Post-Construction Evaluation and Management System has been operated over the past 20 years not only to analyze the performance of large-scale construction projects, and but also to provide useful reference data for future similar projects. Although the Post-Construction Evaluation and Management Center has been legally designated and operated since 2020, various problems have been occurring in the operation of the system. Accordingly, this study proposes strategies for facilitating Post-Construction Evaluation and Management System in terms of the following three aspects: (1) improving the implementation rate of post-construction evaluation; (2) improving the information management system related to post-construction evaluation; (3) improving the utilization of post-construction evaluation outcomes. Based on the results of this study, a specific action plan will be prepared, which is expected to contribute to the efficiency of construction project performance management in the future.

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Investigating the Factors Associated with Post-Traumatic Growth in Parents of Children with Special Needs

  • Min Kyung Han
    • International Journal of Advanced Culture Technology
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    • 제12권2호
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    • pp.386-401
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    • 2024
  • The study introduces and validates a model of post-traumatic growth among parents of children with special needs. The model incorporates cognitive processes, coping strategies, and sociocultural factors as intra-personal variables. The statistical analysis unveiled significant pathways that connect the factors, explaining 71% of the variance associated with post-traumatic growth. The study highlighted intentional reflection and robust decentralization skills as crucial factors that predict post-traumatic growth. Deliberate rumination functioned as a mediating factor, reducing the impact of trauma and facilitating post-traumatic growth, while social support played a crucial role in initiating purposeful rumination. The study findings indicate that the effect of self-disclosure on post-traumatic growth is not direct but rather indirect, as it is mediated by its influence on social support and deliberate rumination. The study underscores the significance of examining particular characteristics of social support networks and suggests integrating additional variables for future research, such as gender, types of traumatic events, and the age of children with disabilities.

Fabrication of a custom polyetherketoneketone post-and-core with digital technology

  • Ju-Hyoung Lee;Gyu-Heon Lee
    • 대한치과기공학회지
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    • 제46권1호
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    • pp.15-19
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    • 2024
  • An ideal post material should have physical properties similar to those of dentin. Post materials with high elastic moduli may cause root fractures. This clinical report describes the treatment of a severely damaged tooth using a recently introduced material. Polyetherketoneketone (PEKK) is a semicrystalline high-performance thermoplastic polymer. PEKK is a promising material for custom post-and-core fabrication because of its elasticity close to that of dentin, good shock absorbance, machinability, and low cost. A laboratory scanner was used to digitize the conventional impression of a severely damaged maxillary right first molar. A custom PEKK post-and-core was designed and milled using computer-aided design and computer-aided manufacturing technology. Using the proposed technique, a custom PEKK post-and-core was fabricated accurately and human error was reduced. Restoration was luted with resin cement. Custom PEKK post-and-core restorations are a viable alternative for treating severely damaged teeth.