We are developing an ultra-high resolution timeto-digital converter (TDC) based on a novel scheme combining a digital “coarse” TDC and analog “fine” TDC. The coarse TDC is derived from a previously reported RSFQ time digitizer based on binary counters. The fine TDC is based on an analog prescaler. A 31 GHz counter defines the coarse (~32 ps) time resolution, while the prescaler provides a fine ...

Terrestrial laser scanning (TLS) is an efficient tool to capture the point cloud for facade modeling. However, it not easy obtain position by Global Navigation Satellite System (GNSS) as occluded high buildings, which would lead a problem orienting TLS data target coordinate system. In this paper, we propose coarse-to-fine registration method reliably orient using digital line graph (DLG). The ...

A recent trial found that the presence of coarse soil in fine soil increased nutrient uptake by two plant species (Smaill et al., 2014). To determine if the additional nutrient uptake was derived directly from the coarse soil, the changes in coarse soil nutrient stocks were assessed. In most cases nutrient stocks increased, despite being associated with greater plant nutrient uptake. This sugge...