COLLABORATIVE CONTROL MECHANISM FOR REENTRANT MANUFACTURING SYSTEM

2006 ◽  
Vol 42 (12) ◽  
pp. 137 ◽  
Author(s):  
Jie ZHANG
2020 ◽  
Vol 10 (10) ◽  
pp. 3497
Author(s):  
Paolo Renna

Workload control mechanisms are widely studied in the literature for the control of job-shop systems. The control of these systems involves acceptance, order release and priority dispatching. At the release level, the workload norm controls the “enters” of the jobs; it is relevant how the aggregate workload is computed. Few works have studied new computation methods of the aggregate workload but use the adjusted aggregate workload proposed in the literature. This paper proposes a dynamically adjusted aggregate workload to improve the performance of the workload control mechanism in job-shop systems. The adjusted aggregate workload is updated when each part exits from a workstation; this means that the workload used to release the orders is related to the state of the job shop in real-time. Simulation is used to evaluate and compare the proposed model to the classical models proposed in the literature. The simulation experiments demonstrate improvement of performance and how the model proposed is robust under different manufacturing system conditions.


Author(s):  
Edna S. Kaneshiro

It is currently believed that ciliary beating results from microtubule sliding which is restricted in regions to cause bending. Cilia beat can be modified to bring about changes in beat frequency, cessation of beat and reversal in beat direction. In ciliated protozoans these modifications which determine swimming behavior have been shown to be related to intracellular (intraciliary) Ca2+ concentrations. The Ca2+ levels are in turn governed by the surface ciliary membrane which exhibits increased Ca2+ conductance (permeability) in response to depolarization. Mutants with altered behaviors have been isolated. Pawn mutants fail to exhibit reversal of the effective stroke of ciliary beat and therefore cannot swim backward. They lack the increased inward Ca2+ current in response to depolarizing stimuli. Both normal and pawn Paramecium made leaky to Ca2+ by Triton extrac¬tion of the surface membrane exhibit backward swimming only in reactivating solutions containing greater than IO-6 M Ca2+ Thus in pawns the ciliary reversal mechanism itself is left operational and only the control mechanism at the membrane is affected. The topographic location of voltage-dependent Ca2+ channels has been identified as a component of the ciliary mem¬brane since the inward Ca2+ conductance response is eliminated by deciliation and the return of the response occurs during cilia regeneration. Since the ciliary membrane has been impli¬cated in the control of Ca2+ levels in the cilium and therefore is the site of at least one kind of control of microtubule sliding, we have focused our attention on understanding the structure and function of the membrane.


1974 ◽  
Vol 32 (01) ◽  
pp. 057-064 ◽  
Author(s):  
Y Nemerson ◽  
S.A Silverberg ◽  
J Jesty

SummaryTwo reactions of the extrinsic pathway of coagulation, the activations of Factor X and prothrombin, have been studied in purified systems and shown to be self-damping. Factor X was activated by the tissue factor - Factor VII complex, and prothrombin by two systems: the coagulant protein of Taipan venom, and the physiological complex of activated Factor X, Factor V, lipid, and calcium ions. In each case the yield of enzyme, activated Factor X or thrombin, is a function of the concentration of activator. These and other observations are considered as a basis for a control mechanism in coagulation.


2010 ◽  
Vol 4 (1) ◽  
pp. 42-59 ◽  
Author(s):  
Kane X. Faucher

The popularity of Deleuze and Guattari is an undeniable precedent in current theoretical exchanges, and it could be stated without much contention that one's theoretical positioning must at some point deal with the salient conceptual offerings of Deleuze and Guattari, especially their double-opus, Anti-Oedipus and A Thousand Plateaus wherein a wealth of critique abounds. However, the significant trends concerning Deleuze and Guattari ‘scholarship’ may be jeopardised by the (ab)use of certain conceptual themes and methods in their work that are distorted and employed by big business looking to secure their legacies of power by means of a control mechanism that looks to subjugate an entire world by means of (to borrow a term from Mihai Spariosu) ‘globalitarianism’. Our aim here will be to use McDonald's Corporation as an example of how the theoretical offerings of Deleuze and Guattari have been indirectly and hastily deployed for corporate ends, how these attempts are counter-Deleuzian, and to answer at least one of Žižek's criticisms against Deleuze.


2015 ◽  
Vol 9 (2) ◽  
pp. 206
Author(s):  
Tawfik Benabdallah ◽  
Nor Nait Sadi ◽  
Mustapha Kamel Abdi

Author(s):  
Jiunn-Tsair FANG ◽  
Zong-Yi CHEN ◽  
Chen-Cheng CHAN ◽  
Pao-Chi CHANG

Diabetes ◽  
1991 ◽  
Vol 40 (8) ◽  
pp. 1033-1040 ◽  
Author(s):  
J. N. Clore ◽  
P. S. Glickman ◽  
S. T. Helm ◽  
J. E. Nestler ◽  
W. G. Blackard

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