closed-loop supply chain network design is a critical issue due to its impact on both economic and environmental performances of the supply chain. in this paper, we address the problem of designing a multi-echelon, multi-product and capacitated closed-loop supply chain network. first, a mixed-integer linear programming formulation is developed to maximize the total profit. the main contribution...

Data centers are promising participants in demand response programs (i.e., reducing a large electricity demand upon utility’s request), making power grid more stable and sustainable. In this paper, we focus on enabling colocation data center demand response. Colocation is an integral yet unique segment of data center industry, where multiple tenants house their servers in one shared facility. N...

Most studies of spatial colocation patterns of crime and land-use features in geographical information science and environmental criminology employ global measures, potentially obscuring spatial inhomogeneity. This study investigated the relationships of three types of crime with 22 types of land-use in Wuhan, China. First, global colocation patterns were examined. Then, local colocation patter...

Object colocation is an optimization that reduces memory access costs by grouping together heap objects so that their order in memory matches their access order in the program. We implemented this optimization for Sun Microsystems’ Java HotSpot VM. The garbage collector, which moves objects during collection, assigns consecutive addresses to connected objects and handles them as atomic units. W...

Pediatric practices are faced with a growing demand that they address the healthy development of their patients. As pediatric practices strengthen their role as medical homes for their patients, they need either to provide expanded services or enhance their capacity to coordinate that care. One option for enhancing the existing capacity of pediatric practices is colocation with other providers ...

The proliferation of electronic trading has seen a race towards faster execution. This technological arms race has yet to be comprehensively and scientifically reviewed. We perform a systematic literature review into colocation and latency minimization with respect to high-performance algorithmic trading systems. We start by defining our protocol in which we identify research questions which ai...

Abstract This paper considers what function—if any—colocation of bodies may have in the Stoic theory blending ( κρᾶσις ), by examining (1) whether colocation is part definition is; and (2) posited Stoics as a requirement necessary for to be satisfied. I reconstruct standard, Chrysippean blending, show that answer ‘no’; further, argue evidence gives no reason affirm (2). Thus, it appears does no...

Satellite measurements are often compared with higher-precision ground-based measurements as part of validation efforts. The satellite soundings are rarely perfectly coincident in space and time with the ground-based measurements, so a colocation methodology is needed to aggregate “nearby” soundings into what the instrument would have seen at the location and time of interest. We are particular...

Colocation has come to be seen as a necessary precondition for obtaining the majority of the benefits of XP. Without colocation teams expect to struggle, to compromise and to trade off the benefits of XP vs the benefits of distributed development. We have found that you can stay true to the principles and not compromise the practices of XP in a distributed environment. Thus, business can realiz...