Based on the theory of ecological footprint, and as land use/cover change the breakthrough point in Loess hilly area, the ecological carrying capacity analysis method was used to calculate the ecological carrying capacity of Shanghuang experimental area. The results showed that the total ecological carrying capacity in 1982, 2000 and 2010 were 242.47、750.53、929.68 hm. Meanwhile the per capita e...

The signal-to-noise ratio of planar ISFET pH sensors deteriorates when reducing the area occupied by the device, thus hampering the scalability of on-chip analytical systems which detect the DNA polymerase through pH measurements. Top-down nano-sized tri-gate transistors, such as silicon nanowires, are designed for high performance solid-state circuits thanks to their superior properties of vol...

The potential of plants to replace fossil oil was evaluated by considering the scale of production required, the area of land needed and the types of plants available. High yielding crops (50 tonnes/ha) that have a high conversion efficiency (75%) would require a global land footprint of around 100 million ha to replace current (2008) oil consumption. Lower yielding or less convertible plants w...

Long-term eddy covariance particle number flux measurements for the diameter range 6 nm to 5μm were performed at the SMEAR III station over an urban area in Helsinki, Finland. The heterogeneity of the urban measurement location allowed us to study the effect of different land-use classes in different wind directions on the measured fluxes. The particle number fluxes were highest in the directio...

Increase in CO2 emissions induced by agricultural inputs in China since its socialist market economic reforms may hinder its sustainable economic development. More attention has been paid to changes in agricultural land use and overall land use benefit; however, relatively less attention has been paid to changes in CO2 emissions induced by agricultural inputs in China since the reforms. The car...

Most arthroscopic rotator cuff repairs utilize suture passing devices placed through arthroscopic cannulas. These devices are limited by the size of the passing device where the suture is passed through the tendon. An alternative technique has been used in the senior author's practice for the past ten years, where sutures are placed through the rotator cuff tendon using percutaneous passing dev...

Full-waveform spaceborne laser altimeter can provide more characteristic parameters of the footprint and rich vertical structure information on target surface. This technology has potential for land-cover classification, especially in hard-to-reach mountain areas. Classifying land types based returned waveform a convenient way online classification needs assess quality used as ground control po...