Recent work by the authors and colleagues developed an Internet-distributed hardware-in-the-loop simulation (HILS) platform to integrate two geographically-dispersed HILS setups over the Internet, namely, the engine-i...
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ISBN:
(纸本)9780791848920
Recent work by the authors and colleagues developed an Internet-distributed hardware-in-the-loop simulation (HILS) platform to integrate two geographically-dispersed HILS setups over the Internet, namely, the engine-in-the-loop simulation setup at the University of Michigan (UM) in Ann Arbor MI, and the driver-in-the-loop ride motion simulator at the US Army Tank-Automotive Research, Development and Engineering Center (TARDEC) in Warren, MI. As the literature discusses in detail, distributing the HILS over the Internet introduces transparency issues due to the delay, jitter, and loss associated with the Internet. This paper first illustrates on a simple example that distributing the simulation can in and of itself be another important source of transparency degradation. Then, the paper presents a variation analysis to evaluate the effect of these two main sources of transparency degradation on the performance of the abovementioned setup. The paper concludes that transparency and how it is affected by distributing the simulation and by the delay, jitter and loss associated with the Internet is dependent on the signal of interest. Specifically, it is shown that distributing the simulation has more effect on the transparency of the engine torque and throttle signals than the delay, jitter, and loss of the Internet between Ann Arbor and Warren, whereas it does not significantly affect the transparency of vehicle speed unless the Internet delay increases significantly.
Because the tensile test provides the most fundamental mechanical property data and because of the incentive to produce ceramic composites and coated, inhibited carbon-carbon composites for use in oxidizing environmen...
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Because the tensile test provides the most fundamental mechanical property data and because of the incentive to produce ceramic composites and coated, inhibited carbon-carbon composites for use in oxidizing environments, Southern Research, under Air Force contract, has been working on tensile tests to 3500°F (1927°C). This work has been broken down into test capabilities to approximately 2800°F (1538°C) and to 3500°F (1927°C). The distinction is necessary at this time because two different heating methods are being considered. The lower temperature has been achieved by engineering existing technology. The higher temperature has required more creative engineering and may require some 'inventions.' The problem is not necessarily heating but combining the heating method with an adequate strain or deformation measuring system.
This paper shows that three cryptographic channels, secure channels (SC), anonymous channels (AC) and direction-indeterminable channels (DIC), are reduced to each other in the UC (universally composable) framework. We...
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ISBN:
(纸本)0780394917
This paper shows that three cryptographic channels, secure channels (SC), anonymous channels (AC) and direction-indeterminable channels (DIC), are reduced to each other in the UC (universally composable) framework. We first define ideal functionalities for these channels, F-SC, F-AC and F-DIC. We then prove that a SC protocol UC-realizes F-SC in the F-DIC-hybrid model, that a DIC protocol UC-realizes F-DIC in the F-AC-hybrid model, and that a AC protocol UC-realizes F-AC-hybrid model in the F-SC-hybrid model.
Recent investigations show that pulsed electric field (PEF) treatment is an effective process to inactivate microorganisms in order to pasteurize liquid foods. The pulsed electric fields are produced by high voltage, ...
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Flat panel displays (FPDs) such as a liquid crystal display (LCD) and a plasma display (PDP) have a problem of a motion blur. It is known that the motion blur is caused by the hold-type characteristics of LCD. The pro...
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This paper is concerned with the problem of longitudinal resonant vibration of a 3,000 m long disconnected riser. Theoretical investigations of natural frequencies and induced displacements and dynamic tensions are pr...
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