• 제목/요약/키워드: Associate

검색결과 935건 처리시간 0.025초

Novel Hilbert spectrum-based seismic intensity parameters interrelated with structural damage

  • Tyrtaiou, Magdalini;Elenas, Anaxagoras
    • Earthquakes and Structures
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    • 제16권2호
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    • pp.197-208
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    • 2019
  • The objective of this study is to propose new seismic intensity parameters based on the Hilbert spectrum and to associate them with the seismic damage potential. In recent years the assessment of even more seismic features derived from the seismic acceleration time-histories was associated with the structural damage. For a better insight into the complex seismic acceleration time-history, Hilbert-Huang Transform (HHT) analysis is utilized for its processing, and the Hilbert spectrum is obtained. New proposed seismic intensity parameters based on the Hilbert spectrum are derived. The aim is to achieve a significant estimation of the seismic damage potential on structures from the proposed new intensity parameters confirmed by statistical methods. Park-Ang overall structural damage index is used to describe the postseismic damage status of structures. Thus, a set of recorded seismic accelerograms from all over the word is applied on a reinforced concrete frame structure, and the Park-Ang indices through nonlinear dynamic analysis are provided and considered subsequently as reference numerical values. Conventional seismic parameters, with well-known seismic structural damage interrelation, are evaluated for the same set of excitations. Statistical procedures, namely correlation study and multilinear regression analysis, are applied on the set of the conventional parameters and the set of proposed new parameters separately, to confirm their interrelation with the seismic structural damage. The regression models are used for the evaluation of the structural damage indices for every set of parameters, respectively. The predicted numerical values of the structural damage indices evaluated from the two sets of seismic intensity parameters are inter-compared with the reference values. The numerical results confirm the ability of the proposed Hilbert spectrum based new seismic intensity parameters to approximate the postseismic structural damage with a smaller Standard Error of Estimation than this accomplished of the conventional ones.

서비스학 학위과정 프로그램개발 연구 (A Design of Service Science Degree Program)

  • 김현수
    • 서비스연구
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    • 제8권3호
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    • pp.37-49
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    • 2018
  • 본 연구는 21세기를 선도할 학문인 서비스학을 학위과정 프로그램으로 설계하기 위한 탐색적 연구를 수행하였다. 새 시대는 산업간 융합이 가속화되고 직업의 이동성이 크게 증가하는 시대이므로, 고등교육에서 양성해야하는 인재상도 크게 달라지게 된다. 역량 개발을 통해 자신의 직업을 창조할 수 있는 인재를 양성해야하며, 산업간 경계가 해체된 생태계에서 창조적 주도성을 발휘할 수 있는 인재를 양성해야 한다. 이를 위해서는 기존의 수직적 전공 학과체제에서 수평적 연계전공 체제로의 전환이 요구되며, 서비스학은 이러한 전환을 위한 핵심 프로그램으로서 역할이 기대된다. 본 연구에서는 이러한 신경제사회의 변화를 반영하고 신교육수요를 반영하여 서비스학 학위 프로그램을 설계하였다. 서비스학 프로그램은 독립전공으로서 학위를 수여할 수도 있고, 기존 전공들과의 연계전공으로서 또는 부전공으로서 역할을 수행할 수도 있으므로, 이에 대한 분석을 제시하였다. 서비스학은 세계경제포럼에서 21세기 인재상으로 정의한 역량을 가장 효과적으로 배양하는 학문으로서 역할이 기대되므로, 향후 연구에서 교육 내용과 방법론에 대한 심화 연구가 필요하다.

Molecular discrimination of Panax ginseng cultivar K-1 using pathogenesis-related protein 5 gene

  • Wang, Hongtao;Xu, Fengjiao;Wang, Xinqi;Kwon, Woo-Saeng;Yang, Deok-Chun
    • Journal of Ginseng Research
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    • 제43권3호
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    • pp.482-487
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    • 2019
  • Background: The mixed-cultivation of different Panax ginseng cultivars can cause adverse effects on stability of yield and quality. K-1 is a superior cultivar with good root shape and stronger disease resistance. DNA markers mined from functional genes are clearly desirable for K-1, as they may associate with major traits and can be used for marker-assisted selection to maintain the high quality of Korean ginseng. Methods: Five genes encoding pathogenesis-related (PR) proteins of P. ginseng were amplified and compared for polymorphism mining. Primary, secondary, and tertiary structures of PR5 protein were analyzed by ExPASy-ProtParam, PSSpred, and I-TASSER methods, respectively. A coding single nucleotide polymorphism (SNP)-based specific primer was designed for K-1 by introducing a destabilizing mismatch within the 3' end. Allele-specific polymerase chain reaction (PCR) and real-time allele-specific PCR assays were conducted for molecular discrimination of K-1 from other cultivars and landraces. Results: A coding SNP leading to the modification of amino acid residue from aspartic acid to asparagine was exploited in PR5 gene of K-1 cultivar. Bioinformatics analysis showed that the modification of amino acid residue changed the secondary and tertiary structures of the PR5 protein. Primer KSR was designed for specific discrimination of K-1 from other ginseng cultivars and landraces. The developed real-time allele-specific PCR assay enabled easier automation and accurate genotyping of K-1 from a large number of ginseng samples. Conclusion: The SNP marker and the developed real-time allele-specific PCR assay will be useful not only for marker-assisted selection of K-1 cultivar but also for quality control in breeding and seed programs of P. ginseng.

국내 문헌정보학 분야의 공동연구 동향 분석 (Analysis of Collaborative Research Trends in Library and Information Science in Korea)

  • 이혜경;양기덕;김선욱
    • 한국도서관정보학회지
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    • 제50권2호
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    • pp.191-214
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    • 2019
  • 본 연구는 국내 문헌정보학 분야의 공동연구의 동향을 파악하기 위하여, 26개 대학의 교수업적평가기준 중 공동연구기여도 부분과, 2000년부터 2017년까지 국내 문헌정보학과 교수 195명의 국내외 학술지에 게재된 논문 5,383편의 서지데이터와 키워드 분석을 시행하였다. 그 결과, 첫째. 국내 대학의 교수연구업적평가기준에 따르면 저자는 공동연구에서의 역할과 관계없이 단독연구 보다 낮은 연구업적으로 그 가치를 인정받는다. 둘째. 국내외 논문 게재 추이로 현재 공동연구가 단독연구보다 많은 게재양이 나타나는 것으로 확인되었다. 셋째. 사립대학 소속 저자가 국립대학 소속 저자보다 상대적으로 공동연구 비율이 낮았다. 넷째. 교수직급별 공동연구의 비율의 경우, 부교수가 상대적으로 타 교수 직급에 비해 공동연구 비율이 낮았다. 다섯째. 키워드 분석의 결과로, 국내 공동연구와 국내 연구자가 참여하여 국제학술지에 게재된 국외 공동연구 모두 사회 현상을 반영한 주제 및 신기술을 활용한 정보학관련주제가 두각을 나타냈다.

ISNI 기반 데이터 융합을 위한 저자식별체계 운용에 관한 연구 (A Study on the Management of Name Identifier System for ISNI-based Data Integration)

  • 이승민;곽승진;오상희;박진호
    • 한국비블리아학회지
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    • 제30권1호
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    • pp.29-51
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    • 2019
  • 현재 사회 각 분야에서는 개별 저작자 및 기관을 고유하게 식별하고 이를 다양한 저작물 관련 데이터와 연계하기 위해서 International Standard Name Identifier(ISNI), Open Researcher and Contributor ID(ORCID), Interested Parties Information System(IPI) 등과 같은 여러 가지 저자식별체계들을 구축, 적용해 왔다. 분야별 데이터 연계와 융합이 점차적으로 가속화되고 있는 현재의 데이터 환경에서 저자식별체계의 적용은 필연적인 것이라 볼 수 있지만, 저자식별체계를 활용하는데 있어서의 한계들도 여러 가지 측면에서 대두되고 있다. 이러한 한계를 극복하고, 저자식별체계를 중심으로 다양한 분야의 데이터를 융합하여 보다 나은 정보생태계를 구축하기 위해, 본 연구에서는 ISNI 중심의 데이터 융합 선진사례를 분석하고, 이를 기반으로 데이터 융합에서 ISNI 저자식별 체계를 효율적으로 운용하기 위한 개선사항을 제안하였다.

최적가용기법 연계배출수준(BAT-AEL) 설정 (Determination of the Best Available Techniques Associated Emission Level(BAT-AEL))

  • 서경애;배연정;박재홍;신동석;류덕희
    • 한국환경과학회지
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    • 제28권4호
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    • pp.455-464
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    • 2019
  • BAT-AEL(Best Available Techniques Associate Emission Level) is the basis for establishing permissible emission standards for the workplace. Therefore, it is necessary to formulate a regulated BAT-AEL setting methodology that is generally applicable to all relevant industries. For the BAT-AEL settings, various factors should be considered such as the pollutants item, whether the workplace is subject to integrated pollution prevention and control, whether BAT is applicable, the basic data type, the emission classification system, and the suitability of the collected data. Among these factors, it is the most important factor to establish the classification system for the emitting facilities such that the emission characteristics of an industrial facility and its pollutants can be effectively reflected. Furthermore the target of the survey workplace should adhere to the BAT guidelines, even if it is a workplace that is subject to an the integrated environmental system. Certified data (SEMS, TMS, cleanSYS, WEMS, etc.) can be used to prioritize the classification system for the emission facility and the emission levels of pollutants. However, the self-measured data, daily logs, and questionnaire data from the workplace can also be used upon agreement of the relevant TWG. The collected data should only be used only when the facility is operating normally. Data that have been determined to be outliers or inappropriate validation methods should also be excluded. The BAT-AEL can be establish by adhering to the following procedure: 1) investigate all relevant workplaces with in the industry, 2)select workplaces for integrated management, 3)Identify BAT application, 4)identify whether BAT is generally applicable, 5)establish a classification system for emitting facilities, 6)collection available data, 7)verify conformity, 8)remove of outliers, 9)prepare the BAT-AEL draft, 10)deliberate, and 11) perform the confirmation procedure.

치유문화에서 나타나는 자아 제한성의 문제: 고통수기들을 중심으로 (The Problem of Self-Limitation in Therapeutic Culture: Focusing on Misery Memoirs)

  • 서길완
    • 영미문화
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    • 제14권1호
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    • pp.73-94
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    • 2014
  • Accounts from therapeutic culture seem often to associate the selfish, or at least self-centered quest for self-fulfillment with individual choice or satisfaction, self-expression, expressive individualism, and emotionalism. These associations point to the downside of therapy as they present it as constituting a culture of narcissism, selfishness, or irresponsibility. While some of these characterizations contain useful insights, they overlook what are maybe some of the most important features of a therapeutic outlook. This paper aims to reveal that the therapeutic imperative is not so much geared towards the realization of self-fulfillment, as it is the promotion of self-limitation. Therapeutic culture tends to posit the self in a fragile and feeble form and insist that the management of life requires the continuous intervention of therapeutic expertise. Because of this, the elevated concern with the self is underpinned by anxiety, pain, suffering, and survival, rather than seen as a positive vision of realizing the human potential. Therapeutic culture has in this way helped to construct a diminished sense of self by which one is seen as suffering from an emotional deficit and vulnerability. This paper demonstrates this downside of therapeutic culture concerning self-limitation and the sense of a diminished self by examining popular "misery memoirs." Misery memoirs are widely consumed by the general public, therefore tend to be treated by contemporary therapeutic culture as a gospel on the therapeutic ideal for self-fulfillment and self-discovery. This is, despite the existence of hidden evidence to the contrary, because of their redemptive, happy endings that show individuals overcoming difficult trials such as child abuse, incestuous rape, and domestic violence. Individual self-fulfillment and self-discovery in such stories are not achieved through the active agency of the subject but through the passive endurance of pathological symptoms and with the aid of expertise and outside support. Therefore, such stories put victims in the limited position.

모바일 홈트레이닝 활용에 따른 운동몰입과 운동지속의도 인과관계 : 코로나19 이후 피트니스 변화 (Causal relationship between exercise commitment and exercise continuation intention according to the use of mobile home training : Changes in fitness after Covid-19)

  • 김지선
    • 한국응용과학기술학회지
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    • 제38권3호
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    • pp.860-869
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    • 2021
  • 본 연구는 모바일 홈트레이닝과 운동몰입, 지속의도에 대한 기술수용 이론을 적용한 인과관계모형에 대한 구조분석 방법(SEM)을 적용하여 소비자을 예측하기 위한 기초자료를 제공하고자 하였다. 현재 코로나-19 팬데믹 사태로 인한 전략적 도구를 파악하기 위해 2021년 2월 1일부터 5월 21일까지 표본계획에 의해 모바일 프로그램인 "서베이 몽키"를 사용하여 유효표본 총 287명의 소비자를 최종 분석에 사용하여 다음과 같은 결과를 도출하였다. 첫째, 수용모델이 운동몰입에 유의미한 영향(+)을 미치는 것으로 나타났으며, 둘째, 수용모델이 운동지속의도에 유의미한 영향(+)을 미치는 것으로 나타났다. 셋째, 운동몰입이 운동지속의도에 유의미한 영향(+)을 미치는 것으로 나타났다.

Characteristics of Wintering Bird Communities in the Moeyungyi Wetland Wildlife Sanctuary, Myanmar

  • Aung, Hsu Sandar;Kim, Hankyu;Lee, Yohan
    • Journal of Forest and Environmental Science
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    • 제38권3호
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    • pp.195-206
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    • 2022
  • Gaining an understanding of bird communities in different habitat types is essential for the conservation of ecologically important habitats. Wetlands possess different types of habitats and provide an important environment for wintering waterbird communities. This study compares avian communities in five different habitat types in the Moeyungyi Wetland Wildlife Sanctuary (MWWS), Myanmar. From December 2014 to the first week of February in 2015, bird and habitat data were collected from representative areas of five habitat types (i.e., short grassland, tall grassland, lotus fields, open water areas, and rice fields) at MWWS. We established nine sampling plots in each habitat type, and used the point quadrat method to survey habitats and the point count method to survey birds in the habitats. Simple one-way analysis of variance (ANOVA) and post-hoc tests were used to determine differences between bird communities. We made 95 detections during 19 daily visits to each of the five habitat types. During the survey period, we recorded a total of 10,389 individuals belonging to 52 different bird species, based on 7-min observations at each of the 45 point count stations. Furthermore, we detected significant differences by habitat structure (i.e., vegetation coverage, height, and density; water depth; and plant species diversity) as well as bird communities (i.e., species richness, abundance, and diversity indices). In addition, the detailed analysis of 52 avian species revealed significant differences among 45 species with respect to the mean numbers of observed individuals in the survey habitats. The findings of this study revealed significant differences in the structure and composition of waterbird communities among the five assessed habitat types. Because natural marshes provide preferable habitats for a larger number and greater diversity of birds, relative to rice fields, natural marshes should be prioritized for conservation and restoration in Moeyungyi Wetland Wildlife Sanctuary.

이중차분법을 이용한 석탄화력발전소에 대한 미세먼지 계절관리제의 지역별 효과 분석 (Analysis of Regional Effects of the Seasonal Management Policy on Coal-fired Power Plant Using Difference-in-difference Method)

  • 강희찬
    • 자원ㆍ환경경제연구
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    • 제31권3호
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    • pp.343-365
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    • 2022
  • 본 논문은 정부가 시행한 1차 계절관리제의 초미세먼지 농도 감소 효과를 통계적 기법을 통해 확인하는 것이다. 특히 본 논문은 이러한 정책효과가 지역별(서해안, 남해안, 동해안)로 차이가 발생할 수 있다는 가설을 검정하는 것이다. 이를 위해 본 논문은 이중차분법(DID, difference-in-difference)을 활용하여 정책 시행 기간(2019년 12월~2020년 3월) 지역과 무관하게 발생한 코로나19, 따듯한 겨울 등 시간적 특이성을 제거하여 순수한 정책효과만 분석하였다. 분석 결과 석탄화력발전소에 대한 정부의 1차 계절관리제는 초미세먼지 감소 효과가 있었으나, 지역별로 그 효과에 차이가 존재하였다. 특히 서해안 지역의 감소 효과가 가장 크고, 남해안 지역이 그다음으로 효과가 있었으나 동해안 지역의 경우 감소 효과가 통계적으로 확인되지 못했다. 결과적으로 본 논문은 현재와 같이 지역과 무관하게 계절관리제를 운영하는 방식은 개선될 필요가 있다는 시사점을 도출하였다.