We consider the problem of migrating user data between data centers. We introduce distributed storage overlays, a simple abstraction that represents data as stacked layers in different places. Overlays can be readily used to cache data objects, migrate these caches, and migrate the home of data objects. We implement overlays as part of a key-value object store called Nomad, designed to span man...

1. Introduction This paper discusses the integration of constraint actors to the Conceptual Programming (CP) environment (Hartley 1988) developed at CRL. The CP system is an implementation of Conceptual Graphs (Sowa 1984) with an added layer called procedural overlays. These overlays allow the system to represent temporal and causal information using a temporal calculus and related time maps (s...

With the popular use of the mobile intelligence equipment, including smartphones and mobile tablets, mobile peer-to-peer (P2P) networks have become increasingly important. In recent years some mobile P2P overlays have been proposed. We propose a three-dimension evaluation framework for mobile P2P overlays under churn. Three P2P overlays, named as GIA, M-GIA, and KCCO(k-Clique Community Overlay)...

The article describes the studies’ results of steels with applied boron-based hardsurfacing overlays. overlay was done in four different ways. materials obtained differed chemical composition, properties and wear resistance. A detailed technical process surfacing charge which makes it possible to obtain necessary material, is given. Studies hardness, macro- microstructure, X-ray phase compositi...

an experimental program was conducted to determine the effects of geosynthetic reinforcement on mitigating reflection cracking in asphalt overlays. the objectives of this study were to asses the effects of geosynthetics inclusion and its placement location on the accumulation of permanent deformation. to simulate an asphalt pavement overlaid on top of a crack in a concrete or asphalt pavement, ...

Intelligent and automatic overlays for video streams know an increasing demand in broadcasting and conference systems. These overlays provide information regarding the broadcast or the conference to better engage the end users. In this paper, a platform is presented that employs Linked Data to determine the content of the overlay, based on the current context. Semantic reasoning is utilized to ...

This paper reviews recent research on the application of an engineered cementitious composite (ECC) as overlay in the repair of deteriorated concrete structures. ECC is an ultra-ductile fiber reinforced cement based composite, that has metal-like features when loaded in tension. The uniaxial tensile stress-strain curve shows a ‘yield’ point, followed by strain-hardening up to several percent st...

Lexical tone melodies of words and word strings in Dogon languages are overridden by syntactically conditioned word-level or broader tone overlays. In Ben Tey and other Dogon languages, certain NP-internal elements—possessors, adjectives, relative clauses, demonstratives—are controllers , imposing overlays such as {L} and {HL} on adjacent words or word strings (the targets). Other elements (non...