African University of Science and Technology: Recent submissions

Now showing items 1761-1780 of 4824

  • Higher symmetries of the Schrödinger operator in Newton–Cartan geometry 

    Gundry, James (ElsevierJournal of Geometry and Physics, 2016-06-17)
    We establish several relationships between the non-relativistic conformal symmetries of Newton–Cartan geometry and the Schrödinger equation. In particular we discuss the algebra sch(d) of vector fields conformally-preserving ...

  • Flagellar flows around bacterial swarms 

    Dauparas, Justas; Lauga, Eric Jean-Marie (American Physical SocietyPhysical Review Fluids, 2016)
    Flagellated bacteria on nutrient-rich substrates can differentiate into a swarming state and move in dense swarms across surfaces. A recent experiment measured the flow in the fluid around an Escherichia coli swarm (Wu, ...

  • Annotating Web Search Results 

    Manthalu, Sam (2014-12-15)
    With more than millions of pages, the Web has become a greatly enormous information source. This information is in form of documents, images, videos as well as text. With such vast sizes of data, it is a common problem to ...

  • A Smart Media-Based Recommendation System 

    Ogbonna, Amanze Darlington (2014-12-15)
    Smart media devices such as: smartphones and tablets are getting more powerful, smarter, cheaper and hence more popular. Recommendation systems become very common in e-business and e-Commerce, for example: Amazon, Google, ...

  • Modeling and Simulation as a Service 

    Ngargoto, Mainroal (2014-12-15)
    DEVS Modeling & Simulation separates a model from its simulator. A DEVS model describes the structure and the behavior of a system, while a DEVS simulator generates the trajectories of these descriptions through execution ...

  • Designing mobile multi-touch drum sequencing applications 

    Lekena, Mohato Karabo (University of Cape TownFaculty of ScienceDepartment of Computer Science, 2015)
    Digital music software can limit the forms of music we create by using interfaces that directly copy those of the analogue instruments that came before. In this study we report on a new multi-touch interface that affords ...

  • Integrating contextmapping and interaction design: designing with and for small-scale urban farmers in Soweto 

    Fenn, Terence Kevin (University of Cape TownFaculty of ScienceDepartment of Computer Science, 2015)
    This thesis describes and reflects on the effectiveness of integrating contextmapping as both a methodology and interaction design practice in order to co-­design digital products with and for developing communities. A ...

  • How far from equilibrium is active matter? 

    Fodor, Etienne Paul; Nardini, Cesare; Cates, Michael Elmhirst; Tailleur, Julien; Visco, Paolo; van, Wijland Frédéric (American Physical SocietyPhysical Review Letters, 2016)
    Active matter systems are driven out of thermal equilibrium by a lack of generalized Stokes-Einstein relation between injection and dissipation of energy at the microscopic scale. We consider such a system of interacting ...

  • Tunnelling effects for acoustic waves in slowly varying axisymmetric flow ducts 

    Nielsen, RB; Peake, Nigel (ElsevierJournal of Sound and Vibration, 2016-06-22)
    The multiple-scales Wentzel–Kramers–Brillouin (WKB) approximation is used to model the propagation of acoustic waves in an axisymmetric duct with a constriction in the presence of mean flow. An analysis of the reflection ...

  • Model and Development of Non‐Predefined Query In Information Retrieval System 

    Adebisi, John Adewale (2014-12-13)
    The amount of information available today is extremely large. The increasing need for easier and faster information discovery demands optimal information retrieval techniques. A measure of performance of any ...

  • A Devs-Based Ann Training and Prediction Platform 

    Adelani, David Ifeoluwa (2014-12-07)
    The artificial intelligence (AI) domain grows every day with new algorithms and architectures. Artificial Neural Networks (ANNs), a branch of AI has become a very interesting domain since the eighties when the back-propagation ...

  • Opinion Mining/Sentiment Analysis 

    Zakari, Abdul Shakur (2013-04-15)
    There has been tremendous growth in the amount of user generated content on the Internet. This is due to rise in social networks and the embrace of web 2.0 or technologies. The Internet is no longer a place for consumption ...

  • Face Verification with Statistical Models of Shape and Appearance 

    Odiete, Obaro Ogehenyoma (2013-04-15)
    Research in computer vision and machine learning is a significant part of research in computer science departments of many leading institutions resulting in ideas and products that have direct applications in different ...

  • Design and Implementation of a Native Mobile Multimedia Learning Application Framework on Android Platform 

    Oyibo, Kiemute (2013-05-23)
    Internet connectivity is one of the fundamental requirements for a successful mobile learning environment. However, within the context of Africa, availability and access, let alone cost, still pose a great challenge in ...

  • Combining Machine Learning Techniques with Statistical Shape Models in Medical Image Segmentation 

    Ebhotemhen, Eustace (2013-05-07)
    In this thesis, we implemented Point Distribution Model and basic Active Shape Model algorithm and contributed this to the AUST Computer Vision and Machine Learning code library. We applied the Active Shape Model to ...

  • Interactive Simulation of Well Placement Technology 

    Emamurho, Juliet Ugherughe (2013-04-12)
    We attempt the design and development of an educational game based on the Input-Process-Outcome model. This tool helps students and other professionals to learn and appreciate the decision-making processes carried out by ...

  • Formal Analysis of DDML 

    Soremekun, Olamide Ezekiel (2011-12-15)
    We propose a framework for formal analysis of DEVS Driven Modeling Language (DDML) models in order to assess and evaluate the properties of DDML models. This framework semantically maps the hierarchical levels of DDML: ...

  • Instabilities and Solitons in Minimal Strips 

    Machon, Thomas; Alexander, Gareth P; Goldstein, Raymond Ethan; Pesci, Adriana Irma (American Physical SocietyPhysical Review Letters, 2016-07-01)
    We show that highly twisted minimal strips can undergo a nonsingular transition, unlike the singular transitions seen in the Möbius strip and the catenoid. If the strip is nonorientable, this transition is topologically ...

  • Simulation Interoperability 

    Osayawe, Ighile (2011-12-15)
    DEVS models are implemented in various programming languages using various strategies. There is a scientific need to couple these models for larger simulations. Therefore there is a need for interoperability between these ...

  • Design and Simulation Study of a Scalable and Resilient Network Architecture for a Hybrid Cloud; Its Billing System 

    Ngolah, Kenneth (2011-12-15)
    A Hybrid Cloud refers to a cloud computing environment that provides pay-as-you-go services to users using the integration of public and private clouds resources. Cloud computing is one of the latest areas in the field of ...