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Transmission line mode theory is used to analyze wideband/multiband small antennas consisting of several conductors. First, the modal theory is introduced with equations in order to implement the theory to antenna analysis. Eigenvalue and eigenvector matrices generated by the theoretical calculation are shown. As an example of simple analysis, ILA with a folded structure consisting of two-wire (FILA)...
In order to reduce a tension on a cable, a deep sea ROV is designed to minimize the weight. However, such a light weight will influence on the movability of crawlers. As an initial investigation experiments were conducted in a water tank using a vehicle of ROV "ABISMO" changing the weight, the buoyancy, the center of gravity and the center of buoyancy. It was observed that the ROV ran unstably...
In this paper, we propose a new method to detect the presence of other wireless systems on the UWB band. In our proposed algorithm, the fittest interference model is selected from the assumed several models based on the akaike information criterion (AIC) which is the estimate of a measure of fit of the model. Using the AIC, we can improve the goodness of fit of the model by the number of free parameters...
The Software Development Project Scheduling Problem is similar to the well-known Resource-Constrained Multi-Project Scheduling Problem (RCMPSP). It consists in determining a schedule of tasks taking into consideration resource availabilities and precedence constraints, while optimizing an objective. Like RCMPSP, it is an NP-hard problem. In this paper, a task segmentation scheme to schedule a software...
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