Measures of the effectiveness and efficiency of meat and poultry recalls are proposed including the proportion of recall product retrieved (recovery rate), time to complete a case, and the ratio of these variables and the statistical evidence is examined. Regression models suggest no significant improvement in the recall process over time or following the PR/HACCP implementation. The key result...

when a distribution network consisting of distributed generations (dgs) is disconnected from upstream network, the system may be exposed to severe power imbalance. in order to prevent the damage of power plants, frequency relays operate and remove dgs from the network. in contrast to traditional methods, the main objective in new methods is to keep dg units in service in the islanded distributi...

The use of stereoscopic SAR images offers an alternative to interferometric SAR for the generation of digital elevation models (DEMs). The stereo radargrammetric method is robust and can generate DEMs of sufficient accuracy to geocode SAR images. Previous work has shown that ground coordinates with accuracy of four times the resolution cell can be obtained from ERS data without using any ground...

At Johnson Space Center (JSC) we have developed automated control agents to reduce human workload by automating routine tasks such as system reconfiguration and FDIR. We have evaluated these control agents for extended periods during ground tests of regenerative crew life support systems that represent analogs of crew systems operating in space. In this paper we describe our experience with the...

When conducting image registration in the U.S. state of Alaska, it is very difficult to locate satisfactory ground control points because ice, snow, and lakes cover much of the ground. However, GCPs can be located by seeking stable points from the extracted lake data. This paper defines a process to estimate the deepest points of lakes as the most stable ground control points for registration. ...

Road condition data are very important in transportation management system. Conventional data collection approach is time-consuming and labor intensive. This paper reports the developed techniques for 3D road surface reconstruction in support of unpaved road distress assessment using imagery acquired from a Unmanned Aviation Vehicle (UAV)-based imaging system. This system, produced in a project...

Satellite line scanner imagery such as that of SPOT and MOMS-02 is usually analysed via a collinearity equation approach based on projective transformation. This paper discusses the application of an alternative approach to the triangulation of satellite line scanner imagery, namely affine projection. The approach involves an initial transformation of the original perspective line image into an...

In active learning, one attempts to maximize classifier performance for a given number of labeled training points by allowing the active learning algorithm to choose which points should be labeled. Typically, when the active learner requests labels for the selected points, it assumes that all points require the same amount of effort to label and that the cost of labeling a point is independent ...