This paper presents some of the results from a Master’s thesis research into the performance and operation of a centrifugal compressor at off-design operating conditions using advanced computational fluid dynamics (CFD) techniques. ANSYS CFX is the CFD solver used in this blind study to evaluate the ability of modern CFD software to predict the performance of centrifugal compressors operating a...

Design of mobile autonomous robots is challenging due to the limited on-board resources such as processing power and energy source. A promising approach is to generate intelligent scheduling policies that trade off reduced resource consumption for a slightly lower but still acceptable level of performance. In this paper, we provide a framework to aid the designers in exploring such resource-per...

Recent progress in wireless receiver design has been towards iterative processing, where channel estimation and decoding is considered a joint optimization problem. Sparse channel estimation is another recent advancement, which exploits the inherent structure of those wireless channels that are composed of a small number of multipath components. In this work we design iterative receivers which ...

We present here an accelerator modeling suite that integrates the capability of MAD-X and UAL packages, based on the Standard eXchange Format (SXF) interface. The resulting environment introduces a collection of accelerator applications ranging from the lattice design to complex beam dynamics studies. The extended capabilities of the MADX-UAL integrated approach have been tested and effectively...

A detention basin is designed for storm water quantity and quality controls. An in-stream basin is often located on a widened floodplain, while an off-stream basin can be part of open space in a parking lot, park, or sport field. The inflow channel associated with an off-stream basin is allowed to carry its base flow not to exceed the downstream capacity. When the inflow channel is full, the ex...

The motion of a multi-body autonomous robot as well as of a train-like multiarticulated transportation vehicle is characterized by the deviation of the path of each intermediate vehicle from that of the leading one (off-tracking). In this paper, we make use of an innovative junction technique, which allows the kingpin to slide along the axis of the leading vehicle, something that proved to be v...

Credible delegation of discretion obtains when it is a rational strategy for managers not to overrule employee decisions that are based on delegated decision rights or renege on the level of delegated discretion (and this is common knowledge). Making delegation of discretion credible becomes a crucial issue when organizations want to sustain the advantages that may flow from delegation: Such ad...

The increased adoption of electronic controls in offhighway machines increases the complexity of typical machine systems and stresses the traditional process used to develop these machines. To address this issue design engineers are turning from the traditional design methods to Model-Based Design. By using models in the early design stages, engineers can create executable specifications that e...

| Current design methodologies for embedded systems often force the designer to evaluate early in the design process architectural choices that will heavily impact the cost and performance of the nal product. Examples of these choices are hardware/software partitioning, choice of the micro-controller, and choice of a run-time scheduling method. This paper describes how to help the designer in t...

We are concerned with the utility of social laws in a computational environment, laws which guarantee the successful coexistence of multiple programs and programmers. In this paper we are interested in the oo line design of social laws, where we as designers must decide ahead of time on useful social laws. In the rst part of this paper we suggest the use of social laws in the domain of mobile r...