IP Multicast is one of the most absolute method for large bandwidth Internet applications such as video conference, IPTV, E-Learning and Telemedicine etc., But due to security and management reason IP Multicast is not enabled in Internet backbone routers. To achieve these challenges, lot of Application Layer Multicast (ALM) has been proposed. All the existing protocols such as NICE, ZIGZAG and ...

We describe our experience porting the Regensburg implementation of the DD-αAMG solver from QPACE 2 to QPACE 3. We first review how the code was ported from the first generation Intel Xeon Phi processor (Knights Corner) to its successor (Knights Landing). We then describe the modifications in the communication library necessitated by the switch from InfiniBand to Omni-Path. Finally, we present ...

Omni-channel retailing consists of the complete alignment different channels and touchpoints that generate a seamless experience for consumers, allowing them to move freely through all channels. The consumer’s perception consistent omni-channel is called intensity. This study reveals this intensity in shopping can offer value also influence satisfaction loyalty. We propose relationship model ha...

In this paper, we propose a new middleware, which supports implementation and evaluation of Application Layer Multicast (ALM in short) protocols in real environments. The middleware provides many functions by which it can largely reduce the time and effort required for ALM protocol prototyping, performance evaluation and tuning. By using those functionalities, we have easily implemented several...

The objectives of POL’s research for 2002 has been to; (i) Provide continued guidance design criteria to OMNI Technologies for the development of acoustic suspended sediment and flow measuring instrumentation, which is to be mounted on the surface of a mine. (ii) The calibration of one of the systems developed by OMNI in the sediment tower at POL. (iii) The assessment of scattering models for s...

Catadioptric omnidirectional sensors (catadioptric cameras) capture instantaneous images with panoramic 360◦ field of view. Entire surroundings are projected via a circularly symmetrical mirror onto the image. Nothing disappears from view even when objects move and the robot rotates. Therefore, catadioptric cameras are very effective in dynamic visual guidance applications such as tracking of o...

SILK is an expressive Semantic Web rule language and system equipped with scalable reactive higher-order defaults. We present two of its latest novel features. Omni rules are prioritized defeasible clauses that provide a higher-level expressive abstraction for users by making rules omni-directional. They handle multi-way conflicts. And they are soundly interoperable with FOL and W3C OWL as well...

A wheelchair with omni-directional wheel is introduced in this article. Two kinds of omni-directional wheel, Mecanum wheel and Trans wheel, are illustrated and their motion principles were analyzed. Virtual Reality Modeling Language (VRML) is adopted to implement the real-time customization and motion simulation. In the realtime customization process, the color of some parts of the wheelchair c...

In this paper, we introduce a novel reservationbased multiple access protocol for ad hoc networks using directional antennas. First, we investigate the limitations of the extreme reservation schemes, namely omni-directional and directional reservations. We highlight the trade-off between spatial reuse (favors directional reservation) and control/data packet collisions (favors omni-directional r...