This paper presents an analysis for measuring performance of asynchronous packet switched hierarchical and multiplc-bus multiprocessor systems. T h e performance was measured using both the analytical and simulation models. The performance measured from the analytical model was found to be very close to the performance measured from the simulation model. The performance of a hierarchical bus sy...

High levels of integration in integrated circuits often lead to the problem of running out of pins. Narrow data buses can be used to alleviate this problem provided that the degraded performance due to wait cycles can be tolerated. We address bus coding methods for low-power core-based systems incorporating narrow buses. We show that transition signaling combined with bus-invert coding, which w...

Two organic gas speciation profiles (OG2403 and OG2404) for compressed natural gas (CNG) transit buses equipped with three-way catalysts (TWC) were developed in this work to complement the current CARB organic gas speciation profile database. The profiles were created based on chassis dynamometer test data of two transit buses equipped with TWCs running on CNG. Profile OG2403 was made for Stead...

Assess the traffic situation will be very good for finding the fastest route or avoid the traffic jam. In order to do so, we need to know the traffic situation on all the roads. Speed of the flow of vehicles on the road can be measured by number of vehicles go by a check point within a unit of time. This measurement shows the status of that road, a low value points out a jam and a high value le...

On behalf of the European Commission, this study establishes empirically the annual leakage rate of mobile air conditioners (MACs) in buses and coaches for the use-phase of the vehicles. In buses, refills are carried out in relatively short service intervals to compensate for leakages whatever their nature. Such refills are recorded over a sufficiently long time and in appropriate detail in Swe...

Mesh connected computers have become attractive models of computing because of their varied special features. In this paper we consider two variations of the mesh model: 1) a mesh with fixed buses, and 2) a mesh with reconfigurable buses. Both these models have been the subject of extensive previous research. The problem of our interest is selection. Selection is a critical comparison problem w...

Concerned with fuel consumption and emissions, especially public transportation in urban areas, the ELFA electric drive system has been developed for hybrid bus applications. This modular system provides bus manufactures a cost effective solution with a maximum degree of design flexibility. The system is adaptable to buses with a wide variety of energy storage devices, power sources, and hybrid...

This paper describes a methodology for obtaining minimum load-shed at selected buses from voltage stability margin viewpoint. The buses for load-shed have been selected based on line voltage stability index and its sensitivities at operating point. Computational algorithms for minimum load-shed have been developed using conventional particle swarm optimization (PSO) and coordinated aggregation ...

Power flow computations are important for operation and planning of the electricity grid, but computationally expensive because nonlinearities size system equations. Linearized methods reduce computational time often have disadvantage that they not applicable to general grids. In this paper we propose a novel linearized power (LPF) technique is able handle PQ- PV-buses, works on both transmissi...

Off-chip memories are typically used during behavioral synthesis to store large arrays that do not fit into on-chip registers. An important power-optimization problem that arises in this context is the minimizationof signal transitions on the off-chip buses connecting the ASIC and the memory. We address the problem of system power reduction through transition count minimization on the multiport...