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All Outputs (34)

Numerical study of Taylor bubbles with adaptive unstructured meshes (2014)
Presentation / Conference Contribution
Hasan, A., Xie, Z., Pavlidis, D., Percival, J., Pain, C., Matar, O., & Azzopardi, B. (2014, November). Numerical study of Taylor bubbles with adaptive unstructured meshes. Presented at 67th Annual Meeting of the APS Division of Fluid Dynamics, San Francisco, USA

The Taylor bubble is a single long bubble which nearly fills the entire cross section of a liquid-filled circular tube. This type of bubble flow regime often occurs in gas-liquid slug flows in many industrial applications, including oil-and-gas produ... Read More about Numerical study of Taylor bubbles with adaptive unstructured meshes.

Production of syngas by pressurized fluidized bed gasification of German Lignite in a H2O/CO2 atmosphere (2014)
Presentation / Conference Contribution
Long, X., Skoulou, V., Paterson, N., & Agorio-Millan, M. (2014, September). Production of syngas by pressurized fluidized bed gasification of German Lignite in a H2O/CO2 atmosphere. Presented at 10th European Conference on Coal Research and its Applications (10th ERCCIA)

The oxyfuel gasification concept enables a N2 free gas to be obtained by fluidised bed gasification (FBG). This process uses CO2 to moderate the bed temperature and thus agglomeration. An alternative cooling medium is steam, which could be employed a... Read More about Production of syngas by pressurized fluidized bed gasification of German Lignite in a H2O/CO2 atmosphere.

A slot-loaded reduced-size CPW-fed aperture antenna for UWB applications (2013)
Presentation / Conference Contribution
Zolfaghari, M., Riley, N. G., Mahdawi, M., & Shen, J. (2013). A slot-loaded reduced-size CPW-fed aperture antenna for UWB applications. . https://doi.org/10.1109/lapc.2013.6711973

The paper presents a co-planar wave guide (CPW)-fed slot loaded low return loss planar printed antenna with a small size designed for wireless communication and UWB applications. First, a conventional UWB antenna is modeled to provide a reference poi... Read More about A slot-loaded reduced-size CPW-fed aperture antenna for UWB applications.

Comparing historical and current spectrum occupancy measurements in the context of cognitive radio (2012)
Presentation / Conference Contribution
Mehdawi, M., Riley, N., Ammar, M., & Zolfaghari, M. (2012). Comparing historical and current spectrum occupancy measurements in the context of cognitive radio. In 20th Telecommunications forum TELFOR 2012 (623-626). https://doi.org/10.1109/telfor.2012.6419287

Cognitive radio (CR) technology promises to be one possible solution to solve the problem of lack of frequency spectrum, by allowing access of unlicensed users in licensed bands, based on an opportunistic approach and without interfering with the lic... Read More about Comparing historical and current spectrum occupancy measurements in the context of cognitive radio.

Corrosion resistance study of electrophoretic deposited hydroxyapatite on stainless steel for implant applications (2012)
Presentation / Conference Contribution
Chew, K. K., Zein, S. H. S., Ahmad, A. L., McPhail, D. S., & Boccaccini, A. R. (2012). Corrosion resistance study of electrophoretic deposited hydroxyapatite on stainless steel for implant applications. Key engineering materials, 507, 141-146. https://doi.org/10.4028/www.scientific.net/KEM.507.141

Stainless steel (SS) is often used for orthopaedic and dental implants because of its excellent mechanical characteristics. However, from an electrochemical perspective, SS can be susceptible to corrosion-related problems. Inorganic bioactive coating... Read More about Corrosion resistance study of electrophoretic deposited hydroxyapatite on stainless steel for implant applications.

Preliminary study of hazardous materials management: An optimization model in the context of green supply chain management (2011)
Presentation / Conference Contribution
Zhao, R., Neighbour, G., & Deutz, P. (2011). Preliminary study of hazardous materials management: An optimization model in the context of green supply chain management. . https://doi.org/10.1109/icbbe.2011.5781397

Although the general framework of supply chain management usually focuses on the production process, as well as the delivery of the product to the market and the consumers, the treatment and disposal of waste materials is usually given little deliber... Read More about Preliminary study of hazardous materials management: An optimization model in the context of green supply chain management.

Simulation and static measurement of the gas volume fraction in a separated flow model using a conductance multiphase Venturi meter (CMVM) (2008)
Presentation / Conference Contribution
Hasan, A., & Lucas, G. (2008). Simulation and static measurement of the gas volume fraction in a separated flow model using a conductance multiphase Venturi meter (CMVM). In Proceedings of Computing and Engineering Annual Researchers' Conference 2008: CEARC’08 (69-74)

The assumption of equal mixture densities at the inlet and the throat of the Venturi is only valid in a homogenous flow. This assumption is no longer valid for a separated flow and therefore, the measurement of the gas volume fraction at the throat m... Read More about Simulation and static measurement of the gas volume fraction in a separated flow model using a conductance multiphase Venturi meter (CMVM).

Modeling of a homogenous gas-water two phase flow through a Venturi and vertical pipe; (A prediction of pressure drop sign change in two phase flow) (2007)
Presentation / Conference Contribution
Hasan, A., & Lucas, G. (2007). Modeling of a homogenous gas-water two phase flow through a Venturi and vertical pipe; (A prediction of pressure drop sign change in two phase flow). In Proceedings of Computing and Engineering Annual Researchers' Conference 2007: CEARC’07

In two phase flow, differential pressures technique can be used to measure the volume fraction of the gas phase. In the case where no restriction is available in the pipeline, the differential pressure technique can be used only in vertical or incl... Read More about Modeling of a homogenous gas-water two phase flow through a Venturi and vertical pipe; (A prediction of pressure drop sign change in two phase flow).

Screening of metal oxide catalysts for carbon nanotubes and hydrogen production via catalytic decomposition of methane (2006)
Presentation / Conference Contribution
Zein, S. H., Mohamed, A. R., & Chai, S. P. (2006). Screening of metal oxide catalysts for carbon nanotubes and hydrogen production via catalytic decomposition of methane. Studies in surface science and catalysis, 159, 725-728. https://doi.org/10.1016/S0167-2991%2806%2981699-X

A number of catalysts prepared from transition metals such as copper (Cu), iron (Fe), nickel (Ni), cobalt (Co) and manganese (Mn) on TiO 2 support were tested for the decomposition of methane into hydrogen and carbon. These catalysts were used in the... Read More about Screening of metal oxide catalysts for carbon nanotubes and hydrogen production via catalytic decomposition of methane.

Modelling and measurement of the gas flow rate in vertical annular gas-water flow using a conductance multiphase Venturi meter
Presentation / Conference Contribution
Hasan, A., & Lucas, G. (2009). Modelling and measurement of the gas flow rate in vertical annular gas-water flow using a conductance multiphase Venturi meter.

Separated flow in a Venturi meter is highly complex and the application of a homogenous flow model could not reasonably be expected to lead to highly accurate results. If this is the case, a gas volume fraction measurement technique at the throat mus... Read More about Modelling and measurement of the gas flow rate in vertical annular gas-water flow using a conductance multiphase Venturi meter.

Experimental characterization of interfacial wave structure of a falling liquid film in a vertical large pipe diameter
Presentation / Conference Contribution
Hasan, A., Azzopardi, B., Hewakandamby, B., AlAufi, Y., Watson, N., & Mohammed, S. (2016). Experimental characterization of interfacial wave structure of a falling liquid film in a vertical large pipe diameter.

There is considerable literature on the thicknesses of falling liquid films, much of which is focussed on either flat plates or small diameter pipes. Many studies provide time series data of the film thickness at one or two points on the pipe wall. T... Read More about Experimental characterization of interfacial wave structure of a falling liquid film in a vertical large pipe diameter.