An alternative numerical method based on the finite element modelling was proposed. In this method, the circuit paameters or modal parameters were determined as the result of the modal analysis of the discretized equa...
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ISBN:
(纸本)7506255715
An alternative numerical method based on the finite element modelling was proposed. In this method, the circuit paameters or modal parameters were determined as the result of the modal analysis of the discretized equation of motion, which was derived from the finite element modeling. This paper shows that the circuit parameters were numerically determined for a piezoelectric Vibratory system by the modal analysis.
The research approach presented focuses on the investigation of real-Time distributed (RTD) systems development and simulation. The authors are developing a formalized simulation method for performance modeling and an...
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This paper presents the modeling and analysis of a fuzzy control algorithm related with Real-time Event Channel. One problem with Real-time Event Channel is that it is sensitive to overload. By modeling and analyzing ...
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Controlling the development of large and complex software is usually clone in a quantitative manner using software metrics as the foundation for decision making. Large projects usually collect large amounts of metrics...
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ISBN:
(纸本)9783642054143
Controlling the development of large and complex software is usually clone in a quantitative manner using software metrics as the foundation for decision making. Large projects usually collect large amounts of metrics although present only a few key ones for daily project, product, and organization monitoring. The process of collecting, analyzing and presenting the key information is usually supported by automated measurementsystems. Since in this process there is a transition from a lot of information (data) to a small number of indicators (metrics with decision criteria), the usual question which arises during discussions with managers is whether the stakeholders can "trust" the indicators w.r.t. the correctness of information and its timeliness. In this paper we present a method for addressing this question by assessing information quality for ISO/IEC 15939-based measurementsystems. The method is realized and used in measurementsystems at one of the units of Ericsson. In the paper, we also provide a short summary of the evaluation of this method through its use at Ericsson.
Precision stopping of an urban train at a station is prerequisite before starting revenue service due to screen doors. Regulation for precision stopping of the urban train requires +/- 30 cm in general in Korea. Since...
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ISBN:
(纸本)9788993215069
Precision stopping of an urban train at a station is prerequisite before starting revenue service due to screen doors. Regulation for precision stopping of the urban train requires +/- 30 cm in general in Korea. Since there is no device to detect stopping error automatically, it takes long time to gather stopping error data at each station due to manual measurement using a ruler. In this paper, we present a principle and design of a precision stopping measurement device (PSMD) which can be easily used for error detection of precision stopping of urban trains. The PSMD developed in our laboratory uses a non-contact optical laser sensor installed at the platform to generate pulse signals from vertical black and white patterns attached on a train side. The number of the generated pulses is counted using a microcontroller, and then is sent to a notebook computer on the train via wireless RF communication. The performance of the PSMD is tested at the lab experimentally under indoor and outdoor environments.
Although virtualization of distributed systems has already been widely implemented for years, a fundamental question in performance analysis and capacity planning is still in dispute, "Can I accurately measure th...
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Although virtualization of distributed systems has already been widely implemented for years, a fundamental question in performance analysis and capacity planning is still in dispute, "Can I accurately measure the CPU time inside a guest operating system?" This paper gives a tutorial on how the time devices are virtualized in different virtualization solutions and how they impact the timekeeping and resource accounting in the guest OS. Then it discusses and compares various solutions to the accuracy problem, to help people understand how to use appropriate metrics.
This paper describes the design, modeling, fabrication and characterization MEMS Coulter counter, using multilayer of SU-8, which can detect and monitor the dynamic cell impedance changes in situ as a function of time...
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The following topics are dealt with: optical fiber systems;image processing;multiple random-access systems;quality management;packet switching;digital systems;subscriber loops;satellite communication;speech coding;vid...
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The following topics are dealt with: optical fiber systems;image processing;multiple random-access systems;quality management;packet switching;digital systems;subscriber loops;satellite communication;speech coding;video communication;digital radio;modulation;OSI standards;switching systems;data communications;radio systems;mobile radio;communication software;spread spectrum;radio countermeasures;computer networks;digital facsimile;speech processing;echo cancellers;and communication system modeling and simulation. 330 papers were presented, of which 303 are published in full in the present proceedings, and 7 as abstracts only.
Experimental excess molar enthalpies of binary systems that are constituted by different groups of hydrocarbons, which are 1-hexene, methylcyclohexane, cyclohexane, isooctane, and heptane, are reported in this work. P...
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Experimental excess molar enthalpies of binary systems that are constituted by different groups of hydrocarbons, which are 1-hexene, methylcyclohexane, cyclohexane, isooctane, and heptane, are reported in this work. Precisely, the mixtures composed of 1-hexene, heptane, and isooctane were evaluated at 298.15 and 313.15 K although the rest of the mixtures were studied at 313.15 K. A quasi-isothermal flow calorimeter at atmospheric pressure has been used to measure the excess molar enthalpies of the studied mixtures. All the binary systems presented an endothermic behavior at the chosen temperatures. Furthermore, the measured data were fitted to the Redlich-Kister equation and NRTL and UNIQUAC models. Hence, the values of the standard deviation indicated the good agreement between the experimental data and the modeling results.
Inspection quality is dependent oil the ability of inspectors to weed out defective items. When inspection is visual in nature, humans play a critical role in ensuring inspection quality with training identified as th...
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ISBN:
(纸本)9783540733188
Inspection quality is dependent oil the ability of inspectors to weed out defective items. When inspection is visual in nature, humans play a critical role in ensuring inspection quality with training identified as the primary intervention strategy for improving inspection performance. However, for this Strategy to be successful, inspectors must be provided with the needed tools to enhance their inspection skills. In this article we outline efforts pursued at Clemson University, focusing on the development of computer-based training systems for inspection training and discuss the results of some of the research briefly.
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