• Title/Summary/Keyword: local-london theory

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Nonlocality effects of MgB2 superconductor

  • Jeong Hun Yang;Jong Su You;Soo Kyung Lee;Kyu Jeong Song
    • Progress in Superconductivity and Cryogenics
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    • v.25 no.3
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    • pp.22-27
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    • 2023
  • Magnetic properties of MgB2 superconducting powder were investigated. M(H), the magnetic field H dependence of magnetization M, was measured and analyzed using a PPMS instrument. The MgB2 superconducting powder showed high critical current density Jc > ~ 107 A/cm2 and clean limit superconducting properties. The equilibrium magnetization Meq properties of MgB2 powders exhibiting various superconducting properties were studied. We find that the equilibrium magnetization Meq(H) properties of MgB2 powders showing conventional BCS properties deviate from the predictions of the standard local-London theory at temperatures below T = 19 K and are in good agreement with the generalized nonlocal-London theory. Nonlocal-London analysis was used to determine and analyze the nonlocal parameters. The temperature dependence of the London penetration depth values λ(T) was studied.

An Analysis of the Urban Fringe Management Initiative's Operational Process in UK Using the Actor Network Theory - A Case Study of Thames Chase Community Forest Initiative - (행위자연계망이론을 통한 영국 도시교외지역 관리시책의 운영과정 특성 분석 -테임즈 체이스 마을 숲 조성 시책을 사례로-)

  • Kim, Yong-Bum;Park, Jae-Hong;Chun, Sung-Hwan
    • Journal of Korean Society of Rural Planning
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    • v.13 no.1 s.34
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    • pp.97-109
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    • 2007
  • The purpose of this research was to investigate and analyse how Community Forest Initiatives as urban fringe management initiatives made alliances with a variety of interest groups, enrol them in the urban fringe management processes using the Actor Network Theory. The Thames Chase Community Forest Initiative was selected and its area of operation included a $97 km^2$ area of green-belt area in East London. It was a instrument far improving and protecting the unique characteristics of the countryside landscape from urban developments as well as evaluating the impact of forestry inclusion in land use planning in the urban fringe. It was operated through a tiered structure comprising the Thames Chase Joint Committee and the management team. They employed a variety of devices to speak with one voice to bring about an effective operation process and to secure the enrolment of a variety of interest groups in its operational processes. Of note, the initiative's actor network impacted on improvement to and management of the countryside landscape despite not owning any land itself. As a result, when urban fringe management initiatives will be launched in South Korea to achieve a more effective and efficient urban fringe management, local councillors and representatives from public and non-government bodies should be more responsive to local communities' views and needs and work more vigorously on their behalf through lobbying, seeking media support, and so on. Moreover, better understanding and communication between local authorities' officers and management initiatives' teams are essential to avoid duplication of work practice.

A Study on Fashion Museum Exhibition Types and Roles -Focused on Simone Handbag Museum Seoul- (현대 패션박물관의 전시유형과 역할 -시몬느 핸드백 박물관 사례를 중심으로-)

  • Jung, Dawn;Ha, Jisoo
    • Journal of the Korean Society of Clothing and Textiles
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    • v.40 no.5
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    • pp.936-953
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    • 2016
  • This article surveys the meaning and history of fashion museum exhibitions to understand the characteristics that make a fashion museum exhibition special. It explores dress museology and fashion museology in theory, and practice across a range of international case studies that include the Costume Institute at the Metropolitan Museum of Art in New York, Mode Museum in Antwerp, and the Victoria and Albert Museum in London. In particular, it examines how curatorial intervention has developed the interpretation and display techniques of dress within the context of the museum or gallery as well as how fashion has made museums accessible to diverse audiences. For a specific case study, we review the types and roles of fashion exhibitions organized by the Simone Handbag Museum, Seoul. It is the first handbag-centered fashion museum in the world as well as one of the most representative local fashion museums. The museum collection includes fashionable western handbags from rare specimens of the $15^{th}$ century to the latest bags of the $21^{st}$ century, and presents a history of changing fashion cycles and the major socio-cultural shifts that have profoundly affected women's lives in public spaces. Exhibitions show the perspective to a range of curatorial methodologies and show the innovative approaches towards collections and displays with broader fashion issues such as gender, materialism and technology. The article is to help encourage further scholar discourse between fashion museum exhibitions and fashion museology.