Gamma-ray Bursts (GRBs) are among the potential extragalactic sources of very-high-energy (VHE) γ-rays. We discuss the prospects of detecting VHE γ-rays with current ground-based Cherenkov instruments during the afterglow phase. Using the fireball model, we calculate the synchrotron self-Compton (SSC) emission from forward-shock electrons. The modeled results are compared with the observational...

Online merchants adopt web personalization to customize web content to match online users’ needs. Prior research has only looked at the “success” side of web personalization. Little research examines the “problematic” side of web personalization. The objective of this research is to explore how “malfunctioning” personalized web services influence an online user’s trust in the personalization ag...

In the Internet of Things (IoT) networking, numerous objects are connected to a network. They sense events and deliver the sensed information to the cloud. A lot of data is generated in the IoT network, and servers in the cloud gather the sensed data from the objects. Then, the servers analyze the collected data and provide proper intelligent services to users through the results of the analysi...

Ball bearings are among the most important and frequently encountered components in the vast majority of rotating machines, their carrying capacity and reliability being prominent for the overall machine performance. Fault detection and diagnosis in the early stages of damage is necessary to prevent their malfunctioning and failure during operation. This paper presents fault detection of ball b...

In the classic RTK method using a single reference station the rover needs to work within a short range from the reference station due to the spatial decorrelation of distance-dependent errors induced by the ionosphere, troposphere and orbital errors. The operating range of RTK positioning is thus dependent on the existing atmospheric conditions and is usually limited to a distance of up to 10-...

The aim of this survey was to describe the different strategies regarding the management of malfunctioning and recalled pacemaker and defibrillator leads across Europe. A questionnaire has been designed to assess the current practice and physician's approach to the management of leads which are faulty, unnecessary, and/or recalled. Responses to the questionnaire were received from 34 hospitals-...

As computing systems are increasingly depending on networking, they are also becoming more vulnerable to networking malfunctioning or misuse. Human intervention is not a solution when computer system monitoring and repairing must be done fast and reliably regardless of scale, networking availability, or system impairing. Future network-centric systems must be built around a defensive architectu...

Whereas John Hunter (1728-93) the anatomist, zoologist, physiologist, pathologist and museum collector receives unceasing eulogy, his work as a practising surgeon is curiously neglected. As far as can be determined, there are no studies devoted to his instruments and operative technique before a personal investigation in 1991, perhaps for the good reason that these would prove inconclusive. Nev...