Runoff prediction under different climate scenarios in the source region of the yellow river

Climate change has great effect on water resources in the source region of the Yellow River, which affects agricultural productivity, industrial water supply and wildlife management in the whole river basin. The hydrologic characteristics of precipitation, temperature and runoff in the source region of the Yellow River are analyzed using the long-term observed data from 1961 to 2010. The trend of runoff is predicted by the multivariate linear regression method under different climate scenarios. Reasons for the changing runoff are explored from the climate change and human activities perspective

Luminescence, morphology and X-ray diffraction features of InGaN materials grown on sapphire by metalorganic chemical vapor deposition

Proceedings of SPIE - The International Society for Optical Engineering389963-72PSIS

Nano-optomechanical static random access memory (SRAM)

This paper reports an on chip nano-optomechanical SRAM, which is integrated with light modulation system on a single silicon chip. In particular, a doubly-clamped silicon beam shows bistability due to the non-linear optical gradient force generated from a ring resonator. The memory states are assigned with two stable deformation positions, which can be switched by modulating the control light's power with the integrated optical modulator. The optical SRAM has write/read time around 120 ns, which is much faster as compared with traditional MEMS memory. Meanwhile, the write and read processes can happen concurrently without interference, which further reduces the time as compared with conventional electrical enabled SRAM. ? 2015 IEEE.EIFebruary49-522015-Februar