Abstract The advancement in technology has brought a new era in terrorism where Online Social Networks (OSNs) have become a major platform of communication with wide range of usage from message channeling to propaganda and recruitment of new followers in terrorist groups. Meanwhile, during the terrorist attacks people use OSNs for information exchange, mobilizing and uniting and raising money for the victims. This paper critically analyses the specific usage of OSNs in the times of terrorism...
Abstract Designing for maximum usability is the goal of interactive systems design, since users want interactive products to be easy to learn, effective, efficient, safe, memorable and over all; satisfying to use. Achieving this requires the product to be evaluated, but the process of evaluation can be difficult, because different evaluation methodologies require some restriction ―e.g. experienced evaluators‖ and can be more time-consuming. In addition, developers will not be able to kno...
Abstract The Wireless Sensor Network (WSN) is becoming increasingly popular as it enables sensor nodes to measure the surrounding environment, communicate and process measured data. WSN has been directed from military applications to various civil applications, especially in hostile areas. Medical, industrial and smart energy applications is still in need for extensive research due to various challenges encountered. Energy consumption is one of the vital challenges that face WSNs research. T...
ABSTRACT E-government is a kind of governmental administration which is based on electronic information technology. One of the key factors that realizes integration and information sharing to the inter-governmental administrations is the trust level. Information security contributes directly to the increased level of trust and confidence between the government departments by providing an assurance of confidentiality, integrity, and availability of sensitive governmental information. The main...
Abstract: Control charts are considered as powerful tools in detecting any shift in a process. Usually, the Shewhart control chart is used when data follows the symmetrical property of a normal distribution. In practice, the data from the industry may follow a non-symmetrical distribution or an unknown distribution. The average run length (ARL) is a significant measure to assess the performance of the control chart. The ARL may mislead when the statistic is computed from an asymmetric distri...
Abstract We find new classes of exact solutions for the Einstein-Maxwell field equations. The solutions are obtained by considering charged anisotropic matter with a linear equation of state consistent with quark stars. The field equations are integrated by specifying forms for the measure of anisotropy and one of the gravitational potentials which are physically reasonable. A general feature of our models is that isotropic pressures are regained when certain parameters vanish; this behaviou...
ABSTRACT Different physical phenomena can be represented in terms of nonlinear problems for partial differential equations, however such problems are often subjected to singularities. Thus it gives rise to a permanent research interest to such problems. In the present study we provide reviews of essential approach applied to Cauchy problems and initial-boundary problems for hyperbolic equations based on latest results in this field. Also in this research we investigate the following problem ...
ABSTRACT This research presents the existence and uniqueness of a solution to nonlocal problem for a loaded parabolic equation. The nonlocal condition of first kind is expressed to its equivalent nonlocal condition of second kind, which is necessary for qualitative study about the solvability of the problem. The theoretical analysis of study on existence and uniqueness of a generalized solution to a nonlocal problem is studied using Galerkin method, apriori method to obtain the approximate s...
ABSTRACT Tomato leafminers, Tuta absoluta pose a control challenge due to resistance against many chemical pesticides including abamectin. In this study, new pesticide was developed by heating mixture of abamectin with neem oil at1:1 ratio. The heating of this mixture resulted to formation of a new compound which is highly biopotent than its constituent substances. This was confirmed by TLC spot formed at Rf 0.43. A leaf dip bioassay method was used to test toxicity against T. absoluta. Bio...
ABSTRACT The main purpose of this dissertation was to evaluate the performance of Cassandra and HBase NoSQL Databases, that present at Column-oriented category on handling streaming data. The data set used for this evaluation were constructed with the help of the Twitter Streaming API. The environment which used to evaluate the performance of Cassandra and HBase on Streaming Data was Apache Spark with its ability to plot streaming data from source using Spark-R. Several studies have been con...
Abstract Big data refers to large complex structured or unstructured data sets. Big data technologies enable organisations to generate, collect, manage, analyse, and visualise big data sets, and provide insights to inform diagnosis, prediction, or other decision-making tasks. One of the critical concerns in handling big data is the adoption of appropriate big data governance frameworks to (1) curate big data in a required manner to support quality data access for effective machine learning a...
Abstract Two types of liquids (water and ethanol) are used to investigate the volumetric change of these liquids with change of temperature in order to find the temperature coefficient for both liquids to relate the volumetric change with global warming. It reveals great agreement with theoretical consideration. So the volume of these liquids increased with increases of temperatures.
ABSTRACT National roaming is an important service that Facilitates can lead us to do the best utilization of available resources between different telecommunication providers in the same country. Vehicle tracking services are important for vehicle protection in different businesses. But this service is limited with the limitation of cellular coverage area especially in rural areas. As a result, the vehicle is disconnected from the tracking server until it enters an area where cellular covera...
ABSTRACT In this thesis, we have designed a shielding system consisting of dual layers to shield fast neutrons. Monte Carlo simulation code (MCNP5) was used to simulate the spectra of 252Cf-neutron source and to verify the performance of several moderating materials and absorbers as well. The performance of high density polyethylene (HDPE) as moderating material was examined against different thermal neutron absorbers such as; borated polyethylene (BPE), Boric acid (H3BO3) and Boron carbide ...
Abstract The aim of this study was to produce protein concentrate from the defatted kernel seeds of Balanites aegyptiaca and investigate its functional properties. The proximate chemical composition of the kernel seeds was determined. The results showed that the moisture, ash, crude protein, oil, and total carbohydrate contents were 3.89, 3.40, 42.41, 40.24 and 10.06% respectively. Protein concentrate was isolated by using alkaline extraction method which followed by isoelectric precipitatio...