نتایج جستجو برای: hub and spoke

تعداد نتایج: 16828932  

2009
Carlos F. Daganzo

This paper describes the network shapes and operating characteristics that allow a transit system to deliver a level of service competitive with that of the automobile. To provide exhaustive results for service regions of different sizes and demographics, the paper idealizes these regions as squares, and their possible networks with a broad and realistic family that combines the grid and the hu...

2003
Mabel Chou Miao Song

In this paper, we present a problem in international shipping which combines the ship routing problem with inventory considerations. A fleet of ships is responsible for the transportation of a given commodity between a supply port and the demand ports. Their routes should be selected so that the total transportation cost and the inventory cost is minimized. Although a generic mixedinteger progr...

2015
David James Derek Truman

OBJECTIVES The relative merits of hub and spoke models of service delivery are often debated, but accessing data on how they may benefit service delivery can be difficult, and may hinder the adoption of a model which can benefit the health community. Our aim was to provide objective data that would either support or refute one potential benefit of service redesign, namely the effect on turnarou...

Journal: :European heart journal 2009
Paolo Ortolani Antonio Marzocchi Cinzia Marrozzini Tullio Palmerini Francesco Saia Nevio Taglieri Federica Baldazzi Gianni Dall'Ara Paola Nardini Silvia Gianstefani Paolo Guastaroba Roberto Grilli Angelo Branzi

AIMS To evaluate the clinical impact of early administration of glycoprotein IIb/IIIa agents (IIb/IIIa agents) in the context of a dedicated hub and spoke network allowing very prompt pharmacological/mechanical interventions. METHODS AND RESULTS Using a prospective database, we conducted a cohort study of ST-elevation myocardial infarction (STEMI) patients (n = 1124) undergoing primary percut...

Journal: :Cerebral cortex 2015
Grace E Rice Matthew A Lambon Ralph Paul Hoffman

The roles of the right and left anterior temporal lobes (ATLs) in conceptual knowledge are a source of debate between 4 conflicting accounts. Possible ATL specializations include: (1) Processing of verbal versus non-verbal inputs; (2) the involvement of word retrieval; and (3) the social content of the stimuli. Conversely, the "hub-and-spoke" account holds that both ATLs form a bilateral functi...

2017
H W Roberts M Z Ni D P S O'Brart

AIMS To develop financial models which offset additional costs associated with femtosecond laser (FL)-assisted cataract surgery (FLACS) against improvements in productivity and to determine important factors relating to its implementation into the National Health Service (NHS). METHODS FL platforms are expensive, in initial purchase and running costs. The additional costs associated with FL t...

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