This paper presents an application of the supervisory control theory (SCT), initiated by Ramadge and Wohnam in the 80s, to coordinate a flexible manufacturing cell (FMC) controlled by a programmable logic controller (PLC). We show how the SCT associated with simulation and automatic code generation can help the control designer to shift focus from synthesis and implementation to the modeling st...

CD23 and FMC-7 are normal B-cell antigens used during diagnostic immunophenotyping of suspected lymphoproliferative disorders, but the diagnostic usefulness of antigenic expression patterns of simultaneous 2-color staining and flow cytometric analysis has not been reported. We evaluated the FMC-7 and CD23 expression pattern in 201 cases of B-cell lymphoma from tissue biopsy specimens by multipa...

Novel smart material and actuator technology will ultimately lead to the development of aerodynamically efficient air vehicles capable of radical shape change that can accomplish various mission types with superior performance. In this research, active skins based upon pressurized flexible matrix composites (FMCs) are investigated for trailing edge flap control of a glider wing. The new active ...

Organo-metal halide perovskites have suffered undesirably from structural and thermal instabilities. Moreover, thermal annealing is often indispensable to the crystallization of perovskites and removal of residual solvents, which is unsuitable for scalable fabrication of flexible solar modules. Herein, we demonstrate the non-thermal annealing fabrication of a novel type of air-stable triple-cat...

we compare two approaches for a markovian model in flexible manufacturing systems (fmss) using monte carlo simulation. the model which is a development of fazlollahtabar and saidi-mehrabad (2013), considers two features of automated flexible manufacturing systems equipped with automated guided vehicle (agv) namely, the reliability of machines and the reliability of agvs in a multiple agv jobsho...

scheduling of production in flexible manufacturing systems (fmss) has been extensively investigated over the past years and it continues to attract the interest of both academic researchers and practitioners. the generation of new and modified production schedules is becoming a necessity in today’s complex manufacturing environment. genetic algorithms are used in this paper to obtain an initial...

An initial manufacturing plan may not consider the particular implementation of flexible manufacturing cells (FMCs). Therefore, the FMC is subject to modelling and simulation to evaluate and correct the production plan using feedback. In the case of highly shared resource contention, deadlock and blocking present an inevitable, unavoidable problem, and corrections may be required for production...

Mixed-criticality (MC) system has attracted a lot of research attention in the past few years for its resource efficiency. Recent work attempted to provide new MC model, so-called Flexible Mixed-Criticality (FMC) task relax pessimistic assumptions classic scheduling. However, FMC, behavior tasks is still analyzed offline stage. The run-time such as dynamic slack not yet been studied FMC schedul...

This research will analyze and discuss the inner behavior of a flexible manufacturing cell in order to buildup its object-oriented simulation system. An object-oriented Petri Net will be built to model a flexible manufacturing cell. The objects of the object-oriented Petri Net are directly mapped from physical objects of a flexible manufacturing cell. This cell includes a robot, several machine...

To extend our studies on glycolipid-reactive invariant Natural Killer T-cell (iNKT-cell) function in multiple sclerosis (MS), we investigated the stimulatory activities of two myelin-derived glycolipids that are poly-acetylated derivatives of β-galactosylceramide designated as fast-migrating cerebrosides (FMC) by thin-layer chromatography. In healthy subjects, FMC stimulation of peripheral bloo...