When rails are laid in a railway track, small gaps are left between the ends of adjoining rails to allow for the expansion of the rails when the temperature rises. Rail joints are provided to form a continuous rail path which are normally laid in standard lengths bolted together by fishplates. When two rail joints are exactly opposing each other, they are called square &#10&#10(side by side) jo...

When rails are laid in a railway track, small gaps are left between the ends of adjoining rails to allow for the expansion of the rails when the temperature rises. Rail joints are provided to form a continuous rail path which are normally laid in standard lengths bolted together by fishplates. When two rail joints are exactly opposing each other, they are called square (side by side) joints...

This paper develops methods for associating two sets of sensor tracks in the presence of missing tracks and translation bias. Key results include (1) Extension of the Maximum A Posteriori Probability method of matching tracks to use feature information as well as kinematic information; (2) translation bias removal techniques that are computationally tractable for large numbers of tracks, and ef...

This paper presents a easy to read review of the architectures for track-to-track fusion (T2TF). Based on whether the fusion algorithm uses the track estimates from the previous fusion and the configuration of information feedback, T2TF is categorized into six configurations, namely, T2TF with no memory with no, partial and full information feedback, and T2TF with memory with no, partial and fu...

We present a direct measurement of the parity-violation parameter Ab using a self-calibrating track-charge technique. In the SLD experiment we observe hadronic decays of Z bosons produced in collisions between longitudinally polarized electrons and unpolarized positrons at the SLAC Linear Collider. A sample of b b events is selected using the topologically reconstructed mass of B hadrons. From ...

We (ICTNET team) participated in Web Track of TREC2009, and in this paper, we summarize our work on Diversity task of Web Track, which is new in this year. The goal of the diversity task is to return a ranked list of pages that together provide complete coverage for a query, while avoiding excessive redundancy in the result list. For this task, we cluster the results of ad hoc task, and rerank ...

This paper investigates how to track a desired trajectory by a mobile manipulator that has redundant degrees of freedom (DOFs). Our approach is based on the analysis of its position and orientation. In the first part of the analysis, the manipulator contributes sub-vectors projected on the Z axis in the world frame, including position and orientation. In the second part, the mobile base and the...

Type II topoisomerases are enzymes that change the topology of DNA by performing strand-passage. In particular, they unknot knotted DNA very efficiently. Motivated by this experimental observation, we investigate transition probabilities between knots. We use the BFACF algorithm to generate ensembles of polygons in Z(3) of fixed knot type. We introduce a novel strand-passage algorithm which gen...

This paper describes a system which acquires 3D data and uses the data to track an eleven degree of freedom human model in real-time. Using four cameras we create a time-varying volumetric image (a visual hull) of whatever object is moving in the space observed by all four cameras. We are currently operating the sensor in a volume of approximately 500,000 voxels (1.5 inch cubes) at a rate of 25...