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This document describes the Recommended Practice for Distributed Simulation Engineering and Execution Process (DSEEP). The DSEEP is intended as a high-level process framework into which the lower-level systems engineering practices native to any distributed simulation user can, such as DIS, HLA and TENA, be easily integrated.
A sensor network consists of a large number of sensor nodes which have sensing functions and wireless communication functions, and a single sink node which is a base station node of the sensor network. Sensor nodes sense some environmental phenomena and send data packets about the phenomena to the sink node by multi-hop communications. Generally sensor nodes are battery-driven. Therefore shortening...
The objective of this paper is to carry out computational experiments to examine Japanese public pension system from the perspective of both macro-level and micro-level. In Japan, one of the most aging countries in the world, many studies have been conducted to evaluate the sustainability of the pension system under the condition of drastic demographic change through computational simulations. Most...
This work discusses a link between two previously reported ideas in high-speed digital-to-analog converter (DAC) design: linear approximation with analog interpolation techniques and an RF DAC concept where oscillatory pulses are used to combine a DAC with an up-conversion mixer. An architecture is proposed where we utilize analog interpolation techniques, but using sinusoidal rather than linear interpolation...
With the increasing popularity and development of e-commerce and information technology, multi-attribute bilateral matching problem has been receiving more and more attention. In this paper, multi-attribute bilateral matching problem is discussed based on the consideration of stable matching. Concepts and definitions of multi-attribute bilateral stable matching are presented firstly, followed by the...
In order to eliminate accident, reduce congestion and improve the efficiency of the traffic circle, three effective and feasible methods are proposed.As an example,the traffic circle flow of the circle in Xiamen China is simulated by these methods above using VISSIM soft.The results of simulation show that three methods applied to different traffic flow each,then we did further simulations to the...
Home-appliance replacement may be implemented in two situations: with and without the financial subsidy offered by the government. As the implement entity of the home-appliance replacement, the enterprise may have two choices: with and without the replacement. In this paper, we analyzed the behaviors of the government and the enterprise based on a mixed-strategy game by system dynamics methodology...
Anti-windup saturation compensation schemes in two-link flexible arms are studied. The singular perturbation approach is used to decompose the nonlinear system into a rigid subsystem and a fast subsystem, which allows a composite control design for the original system. A neural network is designed to compensate the saturation nonlinear in rigid subsystem, and a robust controller is employed to attenuate...
This article refers to possibility of utilization of particle swarm optimization (PSO) by job-shop scheduling problem (JSSP) in real manufacturing system, where the operation processing time depends on the state of machine after processing previous operation.
This report introduces a new approach for detection and correction of gain mismatch between ADC sub-channels in time- interleaved ADCs. Based on discrete Fourier transform, this technique uses a simple approach for gain mismatch correction. MATLAB simulation results are represented for correction of ±2% gain mismatch in a two-channel time-interleaved ADC where the proposed approach improves the SFDR...
In order to deal with the control difficulties of the dredger's dynamic positioning system under large disturbances caused by dredging operation, a disturbances compensating dynamic surface control method is proposed to be used in the dredger's dynamic positioning system. Disturbances can be measured and compensated by the adding forces sensors. The proposed robust controller guarantees the semi-globally...
This paper focuses on complete and systematic application of discrete-event simulation in Distribution Center (DC) design procedure. A framework of simulation application in DC design is given on basis of extensive literature review. Six main steps of DC design and specific aspects for each step in which simulation is always helpful are involved in this framework. Four kinds of functions of simulation...
The relationship between parameter configurations of mechanical products are the main design rules that affect their work performance and the major factor that optimize product structure. However, the actual relationship of parameter configurations can't be gotten directly in the design specifications or the manual. Physical experimental methods are difficult to implement due to long cycle and high...
The environment of information dissemination is represented by complex network. The information here can represent viruses in the network, advertisements, hot topics, public opinions , rumors and so on. A new mathematical model describing the propagation process of information in the complex network is proposed using multi-agent simulation and discrete event simulation methods. The model is developed...
Regarding order arrival obeying Poisson flow and general service distribution of single picking servicer as M/G/1 random service system, the efficiency optimal problem of manual order picking system is studied. Picking route stochastic model under random storage S-type picking condition is built. It makes model approximation calculation with simulation result under order random arrival frequencies...
Qualitative reasoning uses incomplete knowledge to compute a description of the possible behaviors for dynamic systems. For standard QSIM algorithm frequently results in a large number of incomprehensible behavioral descriptions and the simulation for complex systems frequently is intractable, model decomposition methods are used to decompose the complex system model into simple sub-models. Qualitative...
A crank slide-way mechanism is a kind of mechanisms between crank slide mechanisms and crank rocker mechanisms, the main difference is that: in the same case of taking uniform speed as input, the output is neither linear displacement nor the arc path, but a specifically curve. So in some cases, A complex output path can be realized when kinematical curves with special shapes have been accepted. The...
The permanent magnet synchronous motor (PMSM) is increasingly playing an important role in alternating current(AC) transmission system. Recently, lots of researches have been investigated for the PMSM system without speed and position sensors. The Vector-control system based on fuzzy self-tuning PID is proposed in this paper. The new algorithm based on fuzzy self-tuning PID can improve the performance...
New analytical equations are proposed for oscillation amplitude of the MOS Colpitts oscillator. These equations are obtained from a large signal analysis. The analysis is based on a reasonable estimation for the output waveform. The estimated waveform should satisfy the nonlinear differential equations governing the circuit. The validity of the resulted equations is verified through simulations using...
This paper deals with the use of the integrated circuit electromagnetic model (ICEM) to analyze, predict, and optimize auto compatibility and electromagnetic emission at PCB level. ICEM is currently under standardization process (IEC62014-3). The basic ICEM architecture is composed of a power distribution network model and an internal current source modeling digital activity. Such an approach enables...
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