Developing effective supervisory control policies that guarantee deadlock-free operations for automated manufacturing systems (AMSs) has been an active area of research the past two decades or so. A great deal work done with reliable resources; while only a few works are about unreliable resources. This paper addresses robust deadlock problem in AMSs multiple The objective is to develop policy AMS under which system can continue producing all part types not requiring any failed resources...

Time-frequency (TF) analysis algorithms are widely used to process seismic data. Unfortunately, most TF cannot 2-D data, which contain more information than 1-D In fact, x-t domain data should be analyzed in the multi-dimensional phase space (MDPS). this letter, we develop and explain an MDPS method for order map into MDPS, synchrosqueezed curvelet transform (SSCT) is extended from x-y domain. By comparing synchrosqueezing (SST) with SST, how SST makes connection between 4-D...

Frequent sequence mining (FSM) is a fundamental component for analyzing sequential data in the big era. However, collecting and incurs serious privacy issues users. Local differential (LDP) prevalent paradigm statistics analysis. Due to high-dimensionality of data, directly applying LDP on FSM faces severe challenges such as heavy perturbation, waste budget, poor accuracy, high computational costs. This paper proposed PrivFSM PrivFSM∗ which are two LDP-compliant mechanisms with utility low...

The separation of up-going and down-going wavefields is a significant step in the vertical seismic profiling (VSP) data processing. traditional frequency-wavenumber (FK) transform method maps VSP signal from time-space domain to FK for separation. However, cannot separate well near reflecting surface. In this paper, we propose novel called vector classification (FKVC) 2-D data. First, use curvelet (CT) extract direction information signal. CT tight frame has multi-direction characteristics,...

Abstract The dispersion curve describes the relationship between velocities and frequencies. group velocity is a kind of dispersion, which presents energy with different Although many studies have shown methods for estimating from surface wave, estimation body-wave data still hard. In this paper, we propose method to calculate vertical seismic profiling (VSP) that data. generalised S-transform (GST) used map signal time-frequency (TF) domain then delay (GD) can be extracted TF domain. GD...

With the development of bridge structures, it is very necessary to ascertain load-bearing characteristic complex structures. Model test can directly response mechanical characteristics. Based on model 1:5 T-beam, this paper introduces factors designing beam, and gives some similarity relation between beam prototype including deflection stress relation. So laid a theoretical foundation for later test.

An approach to measure the positive sequence parameters of transmission lines based on harmonic method is introduced. The mathematical model and measurement procedure new are explained in detail. hardware structure measuring system GPS given. simulation results show that can satisfactorily meet need under strong interference condition.

Firstly the research situation for grid-connected photovoltaic (PV) is introduced, then, engineering mathematical model of PV cells introduced. The perturbation and observation algorithm chosen as maximum power point tracking (MPPT) algorithm. SPWM double-loop control strategy with outer voltage loop inner current described a three-phase established. simulation results demonstrate validity correctness built in this paper.

High voltage distribution network is an important link between transmission and middle network. If a high fault occurs, the economy reliability of whole city system will be seriously affected. To solve this problem, traditional reconstruction optimization model improved 2-staged proposed based on particle swarm (PSO) algorithm. The first stage only considers economic goal second needs consider boundary constrains. method benefit quality simultaneously. It can achieve multi goals: meeting...

The simultaneous source data acquisition has become a trend because this method the advantages of high efficiency and low cost. Then how to separate overlapped seismic becomes new problem that must be solved. synchrosqueezed curvelet transform is presented as an alternative tool blended banded wave-like components. We have developed synchro-squeezed algorithm in paper. Both numerical example real show x-t domain can clearly separated with synchrosqueezing technique clustering technique....

With the advantage of low cost, simultaneous source data acquisition has become a trend. Meanwhile, how to separate blended becomes problem that must be solved. We have developped wave-field separated algorithm basde on synchrosqueezed curvelet transform deblend banded plane waves. The numerical example shows records in x-t domain can clearly domain.