Prior research suggests that controls can negatively impact the motivation of employees to exert effort and that the detrimental effects of controls depend on control source. That is, controls cause more adverse behavior when employees attribute the source of control implementation to their manager’s decision than when the source of control implementation is beyond their manager’s authority. This study uses experiments to investigate whether the behavioral effects of controls depend not only on control source, but also on control framing, by which managers can frame the control implementation either for monitoring or coordinating purposes. The study also suggests that the interaction of control source and control framing impacts the strength of vertical collective identity, i.e. the shared identity between managers and employees, which in turn explains the differences in employee effort. While this study documents that the interaction of control source and control framing has no effect on vertical collective identity or employee effort, it finds a surprising result: employees respond more positively to the monitoring-framed controls than to the coordinating-framed controls, particularly when the controls are imposed by the manager. This finding suggests that persuasive messages can backfire if the employees are aware of the manager’s potentially self-serving motives behind the control implementation.

Previous work has shown that active noise control (ANC) can be applied to axial cooling fans. Optimization of the control source and error sensor placement is desired to maximize the attenuation using ANC. A genetic algorithm was developed to find the optimal placement of control sources for a given primary source. The optimal configuration of control sources around a single primary source was shown to be a linear arrangement of the sources. This holds true for both two-dimensional as well as three-dimensional configurations. The higher-order radiation of the linear arrangement has also been verified experimentally, but the improvement in the experimental apparatus was not as dramatic as the theoretical model. Multiple flow visualization techniques have been used to find optimal near field error sensor locations. When there is little obstruction to the flow field of the fan, minimal airflow is found along the near field null that is created by minimizing the sound power of the system. Surface mounting of the error sensors can lead to a small increase in the signal-to-noise ratio of the error sensors if vortices exist in the near field of the fan due to obstructions in the main flow. It has also been shown that the introduction of the ANC system does not affect the flow field of the fan.

This project deals with design and implementation of management and monitoring of static power source via ethernet. Description of individual objects and instalations which are located in static power source. Design and implementation of a system for access control of individual users.