Ubiquitous robotics for knowledge-based auto-configuration system within smart home environment
Mustafa Al-Khawaldeh ; Ibrahim Al-Naimi ; Xi Chen ; Philip Moore
Date of Conference: 5-7 April 2016
Date Added to IEEE Xplore: 23 May 2016
Publisher: IEEE
Conference Location: Irbid, Jordan
Abstract
The wide availability of services and devices within contemporary smart home environments make their management a challenging and rewarding task. Maintaining complex smart home systems throughout their lifecycle entails considerable resources and effort. These challenges have stimulated the need for dynamic auto-configurable services amongst such distributed systems. Although significant research has been directed towards achieving auto-configuration, none of the existing solutions is sufficient to achieve auto-configuration within smart home environments. This research aims to devise methods to automate the activities associated with customised service delivery for dynamic home environments by exploiting recent advances in the field of ubiquitous robotics and Semantic Web technologies. It introduces a novel approach called the Knowledge-based Auto-configuration Ubiquitous Robotics for Smart Home Environments, which utilises the Sobot to achieve auto-configuration of the system. A proof-of-concept testbed has been designed, implemented and validated via several case studies.
Influence of Sampling Period on Harmonics of Three- Phase Space Vector Modulated Inverter
Jasim A. Ghaeb ; Mustafa A. Al-Khawaldeh1 ; Saleh Al-Jazzar
British Journal of Applied Science Technology
17(5): 1-8, 2016, Article no.BJAST.28866
ISSN: 2231-0843, NLM ID: 101664541
SCIENCEDOMAIN international
www.sciencedomain.org
Abstract
The three- phase inverter is driven by a number of semiconductor switches for obtaining three phase output of nearly sinusoidal fundamental voltage. The purpose of the Space Vector Modulation (SVM) technique is to produce three-phase load voltages of fewer harmonics. It can be reached by selecting an appropriate sampling period for the desired circular locus. This paper endeavors to present the influence of the sampling period on inverter output voltages and their harmonics. Simulation results are presented to assess the inverter performance for different values of sampling periods. The results conclude that an optimum inverter output voltage is achieved when the given circular locus of space vector is sampled at a period equals the half interval between of the two adjacent space vectors.
Mechatronics Engineers’ Perception of Code Mixing: Philadelphia University and Hashemite University as a Case Study
Publisher: IJALEL; Vol 5, No 7 (2016)
Mustafa Al-Khawaldeh; Nisreen Al-Khawaldeh; Baker Bani-Khair; Hussein Algwery
Abstract
It has recently been widely recognized that code-switching is prevalent in Jordanians' daily conversation in various situations such as home, cafés, universities, restaurants and clubs. Abalhassan and Alshalawi (2000: 183) made a very related observation on code switching behavior among Arab speakers of English that without exception, all respondents switched into English to some degree”. This could be referred to the increase number of technological advances and people travelling across countries for pleasure or for pursuing further education. In light of this observation, the crucial role of language in people's life, ambivalent attitudes towards code-switching (Akbar, 2007), the dearth of research in this area, such a present study is required to explore Jordanian university students’ and instructors’ perceptions of code-switching in their daily classroom conversation and its expected impact on their language proficiency. In particular, it investigates the factors leading them to code mix and their underlying attitudes towards its expected future impact on their language proficiency. To the best knowledge of the present researcher, this study is the first of its kind in Jordan. Data was collected via semi-structured interviews and a questionnaire from 70 university students and 30 instructors from both Philadelphia University and the Hashemite University. Data revealed that code mixing between English and Arabic is a common phenomenon in lectures they have attended in their academic institutions. The participants also show that they find code mixing fascinating and believe that though code switching might have a positive impact on their learning as it helps them better understand the topic. The instructors revealed that code mixing fulfill a set of functions that serve the educational process.