This chapter deals with the problems occur in the welding under the consideration of many causes of defects such as cracking, distortion, porosity, inclusion and undercutting. Welding is very useful for every industry. It is used as a fabrication and sculptural that joins the two parts of materials, generally metals or thermoplastic, through a restricted amalgamation from a suitable combination...

The present study deals with a robot safety system composed of standby robot units and inbuilt safety unit. When the main operative unit fails, it is replaced by the standby robot unit available in the system. The concept of reboot delay is also incorporated in this study according to which the robot unit is rebooted if it is not successfully recovered. The recovery and reboot times of failed u...

We explore the frequency and impact of misunderstandings in an existing corpus of tutorial dialogues in which a student appears to get an interpretation that is not in line with what the system developers intended. We found that this type of error is frequent, regardless of whether student input is typed or spoken, and that it does not respond well to general misconception repair strategies. Fu...

Several studies on photovoltaic systems focused on how it operates and energy required in operating it. Little attention is paid on its configurations, modeling of mean time to system failure, availability, cost benefit and comparisons of parallel and series–parallel designs. In this research work, four system configurations were studied. Configuration I consists of two sub-components arranged ...

In this paper, the authors examine UK mobile users’ perceptions of m-commerce utilization. For this purpose, the authors devise a Mobile Network Utilization Model empirically tested in experimental settings. The empirical findings reveal strong support for the capability of the proposed utilization model in measuring the concept of Mobile Task-Technology Fit (MTTF) and explaining the utilizatio...

Parallel processing is an efficient form of information processing system,which emphasizes the exploitation of concurrent events in the computing process. To achieve parallel processing it’s required to develop more capable and cost-effective systems.In order to operate more efficiently a network is required to handle large amount of traffic. Multi-stage Interconnection Network plays a vital ro...

We present a fault-tolerant post-mapping resynthesis for FPGA-based designs that exploits the dual-output feature of modern FPGA architectures to improve reliability of a mapped circuit against faults. Emerging FPGA architectures, such as 6-LUTs in Xilinx Virtex5 and 8-input ALMs in Altera Stratix-III, have a secondary LUT output that allows access to non-occupied SRAM bits. We show that this a...