• Title/Summary/Keyword: Princeton

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Localization of Ultra-Low Frequency Waves in Multi-Ion Plasmas of the Planetary Magnetosphere

  • Kim, Eun-Hwa;Johnson, Jay R.;Lee, Dong-Hun
    • Journal of Astronomy and Space Sciences
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    • v.32 no.4
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    • pp.289-295
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    • 2015
  • By adopting a 2D time-dependent wave code, we investigate how mode-converted waves at the Ion-Ion Hybrid (IIH) resonance and compressional waves propagate in 2D density structures with a wide range of field-aligned wavenumbers to background magnetic fields. The simulation results show that the mode-converted waves have continuous bands across the field line consistent with previous numerical studies. These waves also have harmonic structures in frequency domain and are localized in the field-aligned heavy ion density well. Our results thus emphasize the importance of a field-aligned heavy ion density structure for ultra-low frequency wave propagation, and suggest that IIH waves can be localized in different locations along the field line.

A new environmental barrier layer for organic light-emitting displays

  • Wagner, Sigurd;Mandlik, Prashant;Han, Lin;Silvernail, Jeff A.;Ma, Rui-Qing;Hack, Michael;Brown, Julie J.
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.1063-1064
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    • 2008
  • We have discovered a new single-layer environmental barrier for OLEDs. In storage at $65^{\circ}C$ and 85% relative humidity, OLED pixels encapsulated with this barrier have half-lives of approximately one year. We describe the fabrication and properties of the barrier, and results of accelerated storage tests.

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Symbiotic Framework for Campus Core and Modern Expansion A Case Study of Princeton University Campus, Princeton USA

  • Han, Gwang Ya;Kim, Hong Ill;Lee, Hee Won;Kim, Hwan
    • Architectural research
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    • v.8 no.1
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    • pp.25-36
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    • 2006
  • Campus core is an essential element in a university's physical environment for symbolic importance of high educational philosophy as well as hierarchical significance of campus structure. Yet, as modern expansion develops into and out of campus core, a challenging design and planning problem for a growing university is how to integrate a new development into the existing core structure and how to expand the fast-growing development beyond the core while maintaining a symbiotic harmony between the campus core and the modern expansion. Such challenge addresses four design frameworks for symbiotic development of the campus core and the modern expansion: (1) building grouping with territorial proximity; (2) building design rules for form and texture; (3) open space network with pedestrian walkway; (4) use-programming for on-campus student community. This study aims to explore these issues with in-depth case study of the Princeton University campus in Princeton, New Jersey in the United States. The study concludes that the Princeton campus is a result from successful synthesis of all the complex design elements, especially in relationship between the old and the new; and adds further that the development of a modern university campus requires a comprehensive plan that takes into account the older buildings when conceiving the new in symbiotic relationship along with open space network as well as functional program distribution.