Recent Submissions

  • DOI Minter: A Service for Flexible Generation of DataCite DOIs in Connection with a DSpace Repository

    Habbal, Mohyden; Grenz, Daryl M. (2019-05-26) [Poster]
    As institutional repositories seek to better support the release of unique research outputs (as opposed to open access versions of separately published materials), they increasingly turn to DataCite DOIs as the most appropriate form of persistent identifier. While DataCite DOI registration support is built into many repository platforms, the native configuration options may be limited. For institutions like ours who opt to use commercial repository hosting services, contracting customizations to features such as the DataCite integration within the existing software also complicates future upgrade or migration paths for the platform as a whole. In addition, locating the DOI minting service of an institution within a single platform or database may be inappropriate when the institution has several different systems that would benefit from the use of DOIs. Due to these factors we developed a local DOI Minter service connected to our hosted DSpace repository via REST API. This has allowed us to have greater immediate flexibility and also better positions us for future expansion of our DOI related services.
  • Snapshot Incoherent Wavefront Sensing

    Wang, Congli; Fu, Qiang; Dun, Xiong; Heidrich, Wolfgang (2019-04-24) [Poster]
  • Super-Resolution and Dynamic Tomography

    Zang, Guangming; Idoughi, Ramzi; Tao, Ran; Lubineau, Gilles; Wonka, Peter; Heidrich, Wolfgang (2019-04-24) [Poster]
  • Uncovering the dark matter of the metagenome one read at a time

    Dimonaco, Nicholas; Creevey, Chris; Hoehndorf, Robert; Kulmanov, Maxat; Liuwei, Wang; Clare, Amanda; Aubrey, Wayne; Kenobi, Kim (Access Microbiology, Microbiology Society, 2019-04-24) [Poster]
    Contemporary metagenomic annotation methods have proven insufficient in our attempts to better understand the complex environments around us. We call the yet to be annotated part of a metagenome it’s ‘dark matter’. The Gene Ontology (GO) is a hierarchical vocabulary used to describe gene product function and a large collection of curated genes with GO annotations already exists. DeepGO utilises deep learning to build models from these curated genes and gene products to predict GO categories for novel proteins. One of the major problems with metagenomic studies today is the process of assembling the environmental DNA sequences into their original genomes. This is difficult, with chimeric metagenomically assembled genomes being common. To avoid this and the computational and time expense, we have modified DeepGO to perform protein function prediction directly from sequence reads with limited protein coding sequence prediction. Three independent models were trained as the following; The first 50 amino acids of a protein were used for training, The last 50 amino acids were used for training, A phasing window of 50 amino acids was used to train across the entirety of a protein sequence. These models were chosen to learn from the different parts of a protein sequence we are likely to capture from only the short unassembled sequence reads. We compared the three models by producing a mock metagenomic community consisting of 6 model bacterial genomes. We evaluated the functions predicted from the unassembled sequence reads and the protein coding sequences predicted from the assembled metagenome.
  • Enhance Solar Energy-based Systems Sustainability using Intelligent Controller

    Chahid, Abderrazak; Laleg-Kirati, Taous-Meriem; N’Doye, Ibrahima; Alharbi, Mohammad; Aljehani, Fahad (2019-04-03) [Poster]
    Nowadays, smart cities focus on using a clean source of energy such as solar-powered membrane distillation plant while reducing the need for fossil resources. Parabolic trough solar collector systems are part of a strategy for global regenerative power generation. The main objective is to gain a high-efficiency production despite the effect of external factors such that humidity or dust accumulation. To ensure economic and safe operation of parabolic solar collector systems advanced control strategies can result in a high efficiency of the outlet temperature.
  • Computation of Electromagnetic Fields Scattered From Objects With Uncertain Shapes Using Multilevel Monte Carlo Method

    Litvinenko, Alexander; Yucel, Abdulkadir; Bagci, Hakan; Oppelstrup, Jesper; Tempone, Raul; Michielssen, Eric (2019-02-14) [Poster]
    Computational tools for characterizing electromagnetic scattering from objects with uncertain shapes are needed in various applications ranging from remote sensing at microwave frequencies to Raman spectroscopy at optical frequencies. Often, such computational tools use the Monte Carlo (MC) method to sample a parametric space describing geometric uncertainties. For each sample, which corresponds to a realization of the geometry, a deterministic electromagnetic solver computes the scattered fields. However, for an accurate statistical characterization the number of MC samples has to be large. In this work, to address this challenge, the continuation multilevel Monte Carlo (CMLMC) method is used together with a surface integral equation solver. The CMLMC method optimally balances statistical errors due to sampling of the parametric space, and numerical errors due to the discretization of the geometry using a hierarchy of discretizations, from coarse to fine. The number of realizations of finer discretizations can be kept low, with most samples computed on coarser discretizations to minimize computational cost. Consequently, the total execution time is significantly reduced, in comparison to the standard MC scheme.
  • High-bitrate visible light communication and high-quality solid-state lighting using superluminescent diode

    Holguin Lerma, Jorge Alberto; Alatawi, Abdullah; Kang, Chun Hong; Shen, Chao; Subedi, Ram Chandra; Albadri, Abdulrahman M.; Alyamani, Ahmed Y.; Ng, Tien Khee; Ooi, Boon S. (2019-02-02) [Poster]
    White light solid-state lighting (SSL) is conventionally based on light-emitting diodes (LEDs). Lately, laser diodes (LDs) have been proposed as a replacement due to their higher device efficiencies; however, laser radiation and eye-safety are always a concern. Superluminescent diodes (SLDs) bring together low coherency and high power, high efficiency and low speckle density, offering an alternative to both LEDs and LDs. Our work compares LED, LD and SLD, and demonstrates high-speed visible light communications and high-quality white light based on c-plane InGaN SLD, constituting a viable innovation for the lighting industry and for the adoption of blue SLD for commercial applications.
  • 2D-Dual-Spacing Channel Graphene Oxide Membranes for High Performance Nanofiltration

    Wang, Shaofei (2019-01-27) [Poster]
    Membranes have a growing impact in water desalination, chemical and pharmaceutical industrial separations. Two-dimensional (2D) materials have been increasingly utilized to fabricate high performance membranes. However, their characteristic single-spacing channel architecture and the non-ideal physicochemical microenvironments result in a permeance-rejection trade-off. We synergistically manipulated the geometry and chemical microenvironment in the graphene oxide (GO) nanochannels, obtaining 2D dual spacing channels with locally expanded hydrophilic sections and narrow hydrophobic sections. With this tailored structure, we achieve high performances in water and organic solvent nanofiltration.
  • A sacrificial RO membrane coating for biofouling control

    Nava Ocampo, Maria (2019-01-27) [Poster]
    A sacrificial RO membrane coating for biofouling control.
  • A Hybrid Bio-inorganic System for Reduction of CO2 to CH4 in Microbial Electrosynthesis (MES) Cells

    Alqahtani, Manal (2019-01-27) [Poster]
    Porous Hollow fiber Nickel Electrode for Effective Supply and Reduction of CO2 to CH4 using Microbial Electrosynthesis Cells
  • Real-time fouling monitoring in membrane filtration systems

    Fortunato, Luca (2019-01-27) [Poster]
    Real-time fouling monitoring in membrane filtration systems
  • Phosphate limitation effect on RO biofouling development and membrane performance

    Javier, Luisa (2019-01-27) [Poster]
    Phosphate limitation effect on RO biofouling development and membrane performance
  • An Innovative Hollow Fiber Air Gap Membrane Distillation (AGMD) Process with Internal Heat Recovery and Reduced Footprint

    Alpatova, Alla (2019-01-27) [Poster]
    An Innovative Hollow Fiber Air Gap Membrane Distillation (AGMD) Process with Internal Heat Recovery and Reduced Footprint
  • Multi-functional 3D honeycomb ceramic plate for clean water production by heterogeneous photo-Fenton reaction and solar-driven water evaporation

    Shi, Le (2019-01-27) [Poster]
    Multi-functional 3D honeycomb ceramic plate for clean water production by heterogeneous photo-Fenton reaction and solar-driven water evaporation
  • Superwettable Membranes for Highly Efficient Separation of Oil-in-Water Emulsions

    Alduraiei, Fadhilah (2019-01-27) [Poster]
    Superwettable Membranes for Highly Efficient Separation of Oil-in-Water Emulsions
  • Early biofouling detection using extracellular enzyme activity A prototype explored

    Khan, Babar (2019-01-27) [Poster]
    Early biofouling detection using extracellular enzyme activity; A prototype explored

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