Band ratio

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  • Coastal zone of Cuu Long estuary is a place through which Mekong River flows into the Eastern Sea with 8 estuaries. is the zone is formed under the influences in the interaction between river and sea. Geologically, coastal zone of Mekong delta is characterised by the predominat of clay and silt formations. These two factors makes the shoreline sensitive to exogenous processes such assedimentation and erosion.. This paper presents an application of satellite remote sensing technology to detect and analyze the spatial changes as well as quantify the shoreline change in Cuu Long estuary.

    pdf6p dem_thanh 22-12-2012 19 5   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Study of Harmonics-to-Noise Ratio and Critical-Band Energy Spectrum of Speech as Acoustic Indicators of Laryngeal and Voice Pathology

    pdf9p dauphong20 10-03-2012 17 2   Download

  • In this study, the mixtures of ZnO and Ga2O3 powder with addition of LiCl flux were fired, the raw material mixing ratio, doped with Mn 2+ and firing atmosphere effects on phosphor characteristics were investigated. When fired at 1200°C, its phosphor powder emits a broad-band spectrum range between 375 nm to 700 nm, with a peak at 470 nm.

    pdf6p nguyenphong201 29-03-2016 7 1   Download

  • To maximize the extent of the photonic bandgap in a finite-height photonic-crystal (PhC) slab one can increase the fill-factor in the PhC lattice. Among the realistic choices of possible 2D lattices, high fill- factor triangular lattices of cylindrical holes in a high index dielectric, namely silicon, are by far the most commonly used. In this paper, we present a method for fabrication of very high fill-factor PhC devices in silicon-on-insulator (SOI) substrates using electron-beam lithography and high-aspect-ratio reactive-ion etching (RIE).

    pdf12p quynho77 13-11-2012 19 0   Download

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