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There are various unstable situations in IoT environments due to the characteristics of wireless local connections, the faults in IoT devices, and the IoT devices crowd at a unit space. To construct a more stable IoT environment for IoT services, the IoT Routers for the IoT service overlay networks should be constructed solidly first. Our research seeks implementing a reliable IoT environment with...
K-modes is a typical categorical clustering algorithm. Firstly, we improve the process of K-modes: when allocating categorical objects to clusters, the number of each attribute item in clusters is updated, so that the new modes of clusters can be computed after reading the whole dataset once. In order to make K-modes capable for large-scale categorical data, we then implement K-modes on Hadoop using...
The main aim of this study is to assess the potential copyright infringement risks (CIR) in information resources by using the extension theory. At first, the analytic hierarchy process (AHP) is employed to determine the weights of the existing early warning indicators system. Secondly, a model is built based on the extension theory to evaluate the potential CIR in information resources. Finally,...
Code-on-demand is an architectural style that a client dynamically downloads a raw script file and executes it on the client-side. This style causes a problem of network traffic because a raw script is not always compiled or minified in advance. Formatting rules, such as indents, line breaks and comments for ensuring human readability, are not necessary to the execution. In order to save wasteful...
The need to increase performance and power efficiency in modern processors has led to a wide adoption of SIMD vector units. All major vendors support vector instructions and the trend is pushing them to become wider and more powerful. However, writing code that makes efficient use of these units is hard and leads to platform-specific implementations. Compiler-based automatic vectorization is one solution...
The study objectives were: (1) to develop and design an Electronic book (E-book) for improving knowledge addressed pesticide safety behaviors among children living in rubber farming areas; and (2) to evaluate their knowledge and perceptions on pesticide use. This study was conducted in the Khogyang community, Trang province, Thailand between September 2013 and March 2014. E-book's content validity...
This work presents a peculiar phenomenon which occurs in the response at a cable terminal exposed to an incident plane wave. There is no even-order resonance peak in the induced voltage if the entire cable is irradiated perpendicularly. Theoretical formulation predicts the phenomenon which is in turn validated by a full-wave electromagnetic simulation of the scenario.
In this paper, a solution to the double curl equation with generalized Coulomb gauge is proposed based on the vectorial representation of the magnetic vector potential. Coulomb gauge is applied to remove the null space of the curl operator and hence the uniqueness of the solution is guaranteed. However, as the divergence operator cannot act on the curl-conforming edge basis functions directly, the...
The department of Electrical and Computer Engineering (ECE) is one of four departments in the College of Engineering at Sultan Qaboos University (SQU), Sultanate of Oman. The department admits around 25% to 30% of engineering students every semester. Specialization selection is based on students' discretion and academic acation selection is its inception, ECE accommodated the largest share of students...
Electromagnetic scattering from conducting combination target of body of revolution (BoR) and arbitrary structure is analyzed using the integral equation domain decomposition method (IE-DDM). In non-conformal IE-DDM framework, the target is divided into the BoR sub-domain and non-BoR sub-domain according to geometrical feature, where the BoR and RWG basis functions are used respectively. To realize...
Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
Opinion these days is considered vital to attract probable customers; hence e-commerce websites are facilitating the existing customers to share their experiences about the products they have used. The dawn of e-commerce business has resulted into some firms, which post reviews that are carefully designed to influence the opinion of prospective customers. Review sites provide an open platform for...
There is an ongoing concern over too few females enrolling and persisting in collegiate science, technology, engineering, and mathematics (STEM) degree programs. To address this issue three studies were carried out (1) an investigation of the factors that influence females to enroll in collegiate STEM programs so that more effective outreach can occur, (2) an analysis of changes in female self-efficacy...
In this paper, the design and implementation of a systematic process for students outcomes (SO) assessment in the Electrical and Computer Engineering (ECE) program at Sultan Qaboos University (SQU) in Oman is described. Unlike most programs aiming for ABET accreditation, the process is based on a collective and acquiescent approach that involves most of the program faculty members: All Faculty members...
The structuring of large volumes of e-documents assumes the organization of text on several levels, namely paragraphs, sentences, phrases, words. Methods of lexical paradigms extraction using statistical analysis were developed long ago. In this paper we attempt to move from lexical correlatives to the list of synonyms on various levels of generalization on the basis of local and global contexts'...
This paper introduces a methodology of synthetic aperture radar imaging by utilizing scattering coefficients of targets obtained from time-domain full-wave simulations. Compared with conventional point-reflector assumption in synthetic radar imaging as well as shooting and bouncing rays technology, such a method is able to achieve a higher resolution in range, and is especially useful in imaging complex...
Computational Electromagnetics (CEM) has made great strides over the years and has enabled us to solve very large and complex problems that were well beyond our reach only a few year ago. This has been made possible because of steady increases in computing speeds — thanks to Moor's Law — and the advent of parallelization as well as development of iterative and domain decomposition techniques. The...
Adaptive beamforming is critical in high performance radar and wireless communications applications. This paper presents a study of adaptive beamforming for arbitrary array by applying the powerful and versatile particle swarm optimization (PSO). Numerical experiments for sidelobe suppression, nulling, null steering and array failure correction have demonstrated that the presented PSO approach is...
In this paper, we first consider the Fock current from the 3-D convex cylinder. Next, on invoking the incremental length diffraction technique (ILDC), the resultant high frequency scattered fields are expressed in terms of the Fock current. We propose the NSDP method to calculate these scattered fields. Numerical examples illustrate that the proposed NSDP method for calculating the high frequency...
Life cycle assessment (LCA) as a decision support tool for evaluating the environmental load of products has been widely used in many fields. However, applying LCA in the building industry is expensive and time consuming. This is due to the complexity of building structure along with a large amount of high-dimensional heterogeneous building data. So far building environmental impact assessment (BEIA)...
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