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Juwono A.M.,Queensland University of Technology | Juwono A.M.,Brawijaya University | Johnson G.R.,Queensland University of Technology | Mazaheri M.,Queensland University of Technology | And 3 more authors.
Atmospheric Environment

A method for investigating ship emissions, known as the plume capture and analysis system (PCAS) is described. The PCAS is applied to the task of measuring airborne pollutant emission factors (EFs) and particle size distributions aboard two dredgers, although the technique is also suitable for remote measurements. EFs were measured relative to the fuel consumption using the fuel combustion derived plume CO2. Each measurement typically took 6min to complete and during one day, 40-50 measurements were possible. EFs for particle number (PN), NOx, SO2, and PM2.5 were independent within a targeted dilution factor range of 50-1000 suitable for onboard and remote sampling. For the Amity, the EF ranges were PN: 2.2-9.6×1015(kg-fuel)-1; NOx: 35-72g(NO2)(kg-fuel)-1, SO2 0.6-1.1g(SO2)(kg-fuel)-1and PM2.5: 0.7-6.1g(PM2.5)(kg-fuel)-1. For the Brisbane they were PN: 1.0-1.5×1016(kg-fuel)-1, NOx: 3.4-8.0g(NO2)(kg-fuel)-1, SO2: 1.3-1.7g(SO2)(kg-fuel)-1 and PM2.5: 1.2-5.6g(PM2.5)(kg-fuel)-1. Particle number emission factors as a function of size as well as the count median diameter (CMD), and geometric standard deviation of the size distributions are provided. This size distributions were consistently uni-modal in the range below 500nm for both vessels, and this CMD always lay within the accumulation mode range. © 2013 Elsevier Ltd. Source

Steinke K.,QLD | Sanadgol B.,Wesley Medical Imaging | Singh M.,Royal Brisbane and Womens Hospital | Singh M.,University of Queensland
Journal of Medical Imaging and Radiation Oncology

Although very rare, mediastinal nodal angiomatosis is an entity radiologists should be aware of to be a differential diagnosis for a hypervascular mediastinal mass lesion. The CT- and MR-morphological features are non-specific and only histopathology can reveal the definitive diagnosis. © 2011 The Royal Australian and New Zealand College of Radiologists. Source

Logitharan R.L.,RoadTek | Somasundaraswaran K.,University of Southern Queensland | Ramanujam J.M.,QLD
Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014

Recently Foamed Bituminous Stabilisation (FBS) in rehabilitation of flexible pavements has become popular due the quality of the final product from using purposely made, environmentally responsible machineries to support the construction works for long-term performance. This paper documents the results of technical investigations carried out to improve the performance jointly by the contractor and the client for a FBS work in Oakey, Queensland. Results from several testings, including coring samples from the completed sections and subsequent MATTA testing to estimate resilient modulus were used when making modifications to the design for improved outcomes. The strategies documented here would be very useful for both the client and the contractors to deliver a long-team benefit to the public from the investments in road rehabilitation works. © 2015 Taylor & Francis Group, London. Source

McCarten P.S.,QLD
Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014

Bridge asset managers have been using performance indicators for many years to report stock and condition. It is recognized the fiscal demands necessary to address stock in poor condition and deficient bridges are significant and considered unsustainable. Recent audits of funding programs have reported there is a lack of transparency and accountability between funding and bridge improvement performance. Bridge managers must therefore: •Implement more robust and focused risk management regimes for prioritizing bridge projects • Improve justification and reporting for projects requiring funding This paper addresses these issues in relation to performance measures and offers a fresh perspective on the performance measures required to report the strategic outcomes expected by the funding agencies and community. © 2014 Taylor & Francis Group. Source

Walsh R.,QLD
International Journal of Speech-Language Pathology

This paper explores the insights that classification theory can provide about the application of the International Classification of Functioning, Disability and Health (ICF) to communication. It first considers the relationship between conceptual models and classification systems, highlighting that classification systems in speech-language pathology (SLP) have not historically been based on conceptual models of human communication. It then overviews the key concepts and criteria of classification theory. Applying classification theory to the ICF and communication raises a number of issues, some previously highlighted through clinical application. Six focus questions from classification theory are used to explore these issues, and to propose the creation of an ICF-related conceptual model of communicating for the field of communication disability, which would address some of the issues raised. Developing a conceptual model of communication for SLP purposes closely articulated with the ICF would foster productive intra-professional discourse, while at the same time allow the profession to continue to use the ICF for purposes in inter-disciplinary discourse. The paper concludes by suggesting the insights of classification theory can assist professionals to apply the ICF to communication with the necessary rigour, and to work further in developing a conceptual model of human communication. © 2011 The Speech Pathology Association of Australia Limited. Source

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