This paper aims at studying the effect of the dynamic errors on surface measurements using three different types of touch trigger probes attached to a bridge-type-CMM. Unforeseeable dynamic root errors of a ductile touch trigger probing system have been characterized theoretically and experimentally as well. The results were employed in validating a developed analytical twodimensional-model (2D...

We present a new network coordinate system, Charm, embedding round-trip time latencies into a Euclidean space. Charm is based on a particle system model with two spatial force interactions: attraction and repulsion. The update algorithm (Charming) that Charm uses is simple and lightweight: At each latency sample, the algorithm either “attracts” the communicating nodes to each other or “repels” ...

Industrial robots need instrument or parts transport to do which requires coordinate to show the robot’s instrument, parts and body. When investigating the robot location, we are usually interested in measuring its location relative to a reference coordinate system. In this system it is attempted to make the assemble direction smaller by designing the sensor board and making use of an instrumen...

Health and social care students spend up to 50% of their course in practice. Placements are distributed across a wide geographical area and have varying degrees of IT access and support. Consequently, students may feel isolated from peers, academic staff, and resources required for effective learning. Mobile technology has considerable potential to enhance the learning of these students. This p...

For geographic applications, it is of great interest to study the geometric properties of the sphere. Spatial models that directly deal with geographic coordinates are able to contemplate such aspects that would be otherwise disregarded by flat 2D models. For example, on the Earth’s surface, a point which is to the East of another point could be reached travelling to West as well. Being situate...

This paper investigates the dynamic conditional correlations (DCC) of stock returns between China and international markets. Statistics suggest that stock-return correlations across markets are time-varying, displaying a structural change triggered by an upward shift in China’s adoption of financial liberalization and the occurrence of the worldwide financial crisis. The dynamic correlations ar...

This paper presents a system for overlaying 3D GIS data information such as 3D buildings onto a 2D physical urban map. We propose a map recognition framework by analysis of distribution of local intersections in order to recognize the area of the physical map from a whole map. The retrieval of the geographical area described by the physical map is based on a hashing scheme, which is called LLAH...

Now let (x, y, z) be a representative of a class in E and suppose z 6= 0 then (xz , y z , 1) is the unique representative of [(x, y, z)], the class of (x, y, z), in the plane z = 1. So we can think of projective points on E with nonzero z-coordinate as corresponding bijectively to solutions (x, y) of y = x + ax + b. Now suppose z = 0, then [(x, y, z)] ∈ E implies that x = 0, so there is exactly...

Winning business strategies are grounded in sustainable competitive advantage. A company has competitive advantage whenever it has an edge over rivals in securing customers and defending against competitive forces. There are many sources of competitive advantage: making the highest-quality product, providing superior customer service, achieving lower costs than rivals, having a more convenient ...

Introduction: Of Titan’s three seas, Kraken has the largest area, and sprawls over the widest range of latitude and longitude. This extent means it sees the largest variations in tidal accelerations due to Saturn’s gravity, and thus has the largest tides. New Cassini observations map the seas (figure 1) and allow quantification of tidal processes : a feature of particular interest is a narrow ‘...