1,721,404 research outputs found
On the fidelity of the AX+B equipment model for clustered photolithography scanners in fab-level simulation
No full textFlow lines with regular service times: Evolution of delay, state dependent failures and semiconductor wafer fabrication
No full textRegular flow line models for semiconductor cluster tools: A case of lot dependent process times
No full textEquipment models for fab level proudction simulation: Practical features and computational tractability
No full textRéunions concernant l’Amérique Latine et l'Afrique. Compte rendu de Mrs. James Morrison, déléguée de la F.I.F.D.U. aux Nations unies, à New York.
No full textMorrison James, Etillard M. Réunions concernant l’Amérique Latine et l'Afrique. Compte rendu de Mrs. James Morrison, déléguée de la F.I.F.D.U. aux Nations unies, à New York. In: Diplômées, n°71, 1969. pp. 140-141
A Numerical Study on the Structure of Optimal Preventive Maintenance Policies in Prototype Tandem Queues
No full textWhile high levels of automation in modern manufacturing systems increase the reliability of production, tool failure and preventive maintenance (PM) events remain a significant source of production variability. It is well known for production systems, such as the M/G/1 queue, that optimal PM policies possess a threshold structure. Much less is known for networks of queues. Here we consider the prototypical tandem queue consisting of two exponential servers in series subject to health deterioration leading to failure and repair. We model the PM decision problem as a Markov decision process (MDP) with a discounted infinite-horizon cost. We conduct numerical studies to assess the structure of optimal policies. Simulation is used to assess the value of the optimal PM policy relative to the use of a PM policy derived by considering each queue in isolation. Our simulation studies demonstrate that the mean cycle time and discounted operating costs are 10% superior
Morrison, James E. v. Van Sciver, George R.
No full textExhibits include photographs of White Horse Pike (Route 30) south of Berlin, NJ and the back of the truck involved in the accident
Pluralist public sphere or elitist closed circle? Elite-driven agendas and contributor 'chemistry' as determinants of pundit choice on a flagship BBC politics show.
Full text linkSince BBC1’s Politics Live discussion show launched in 2018, it has been characterised by an accessible and chatty, if sometimes highly involved, discursive style more native to podcasts than conventional daytime television. The programme attempted to distinguish itself through distinctive features including meaningful engagement with social media, a dynamic ‘musical chairs’ approach to refreshing panels mid-show, live fact-checking of disputed political truth-claims, and a sometimes self-consciously inclusive strategy for balancing the age, race and gender profiles of studio guests. If the programme has struggled to fulfil any of its trumpeted selling-points, however, it is its quest to reflect the world of politics at ‘grassroots’ level – by venturing beyond London’s insular ‘Westminster bubble’ to seek out issues and contributors that better reflect the topics people chat about in the pub. This chapter combines analysis of the voices and issues aired on Politics Live during the opening months of its second year and an interview with its head producer to determine the extent to which it qualifies as a pluralistic, representative public sphere, rather than a superficially persuasive reconfiguration of existing elite circles
- …
