We introduce a practical antialiasing approach for interactive ray tracing and path tracing. Our method is inspired by the Subpixel Reconstruction Antialiasing (SRAA) method which separates the shading from visibility and geometry sampling to produce antialiased images at reduced cost. While SRAA is designed for GPU-based deferred shading renderer, we extend the concept to ray-tracing based app...

a r t i c l e i n f o Due to the challenges associated with reaching consumers using traditional marketing approaches, firms increasingly rely on relational marketing tactics to increase customer patronage with the firm. Yet, consumers often actively avoid relational devices. Thus, firms have a heightened interest in factors that affect customer engagement in relationship marketing efforts. Thi...

In view of the LHC upgrade for the High Luminosity Phase (HL-LHC), the ATLAS experiment is planning to replace the Inner Detector with an all-Silicon system. The n-on-p technology represents a valid solution for the modules of most of the layers, given the significant radiation hardness of this option and the reduced cost. There is also the demand to reduce the inactive areas to a minimum. The ...

In this communication a bi-criterion approach for the nominal Airlines Crew Rostering Problem is developed. The nominal Crew Rostering Problem considers the assignment of the crew staff to a set of pairings covering all the scheduled flights so that operations costs are minimized while its solution must meet hard constraints resulting from the safety regulations of Civil Aviation as well as fro...

The study of Multiple Soft errors on memory modules caused by radiation effects represents an interesting field of current research. The fault tolerance of these devices in radiation environments is traditionally analyzed and increased by means of soft error protection mechanisms as EDAC codes or physical interleaving. As Communication System interleavers are mainly implemented using memories, ...

Software testing is indispensable in ensuring software quality. Traditionally, testing has been viewed as a separate and distinct stage at the end of the software development process. However, testing activities have evolved from the “code and fix” process of executing a piece of software in an attempt to find coding errors, to a collaborative coordinated effort with testing activities embedded...

In cloud-computing systems, network-bandwidth guarantees have been shown to improve predictability of application performance and cost [1, 30]. Most previous work on cloudbandwidth guarantees has assumed that cloud tenants know what bandwidth guarantees they want. However, application bandwidth demands can be complex and time-varying, and many tenants might lack sufficient information to reques...

With massive increase in data size, databases have grown beyond size that can be managed at a central point. So databases need to be distributed with capabilities of scaling, aggregation and coordination. With the advent of cloud computing resources are easy than ever to access with the possibility of scalability, increased performance, automatic resource adaptation and up and down scaling. How...

Concentrating photovoltaics is an innovative alternative to flat-plate module to produce cost-competitiveness electricity. It is based on the use of optical system of reduced cost which is able to concentrate the solar light on a very small surface (high efficiency solar cell). At present, this technology has a marginal position in photovoltaic market and to take off needs to increase the confi...

Over the past decade the availability of digital photography, digital imaging systems and computer driven digital presentation programs has revolutionised teaching and lecturing. Before the arrival of digital photography it was expensive to purchase dedicated 35mm dental photographic equipment and accessories and it would be more likely to be bought by the dentist who is an amateur photographer...