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Yongjun Peng is a Professor at School of Chemical Engineering, The University of Queensland. He obtained his PhD under the supervision of Profs Stephen Grano, John Ralston and Daniel Fornasiero from the Ian Wark Research Institute of the University of South Australia in 2002. This study was part of a large international project, AMIRA P260C regarding grinding and flotation chemistry in fine particle flotation with application of complementary solution and surface analytical techniques. He studied the galvanic interactions between grinding media and base metal sulphide minerals, mineral oxidation and dissolution, the activation of iron sulphide minerals, and surface contamination in improving mineral flotation. He was the 1st researcher developing the well-known Magotteaux Mill which allows the control of chemical reactions during grinding. His research work also guides the industry to use high chromium media in primary grinding mills and inert grinding media in regrinding mills to minimize the negative effect of galvanic interactions.

From 2002 to 2006, Yongjun Peng worked at the COREM Research Centre in Canada which is supported by the Canadian government and eleven international member mining companies. During his time there, he developed technologies for member mining companies to improve base metal, gold and niobium flotation. He was awarded an expert certificate for five years in Canada by the Quebec government, and also awarded NSERC (Natural Sciences and Engineering Research Council of Canada)-Industry Research Fellowship. From 2006 to 2009, Yongjun Peng worked at BHP Billiton Perth Technology Centre in Australia as a Senior Metallurgist/Engineer responsible for fine nickel flotation in saline water, gold and uranium processing. He won a major BHP Billiton internal prize in 2008.

Yongjun Peng’s current research at the University of Queensland focuses on froth flotation and the underlying solution chemistry, colloid/surface chemistry and electrochemistry. In addition to solving problems for individual companies, the underlying theme is the particle interaction taking place during the processing of low quality and complex energy and mineral resources with low quality water to address key challenges that face the resource industry today. His research is supported by the Australia Research Council, the Australian Coal Industry’s Research Program (ACARP) and the resource industry. In 2022, he was awarded the ACARP Research Excellent Award recognising research and leadership excellence through long term commitment and impact.

New technologies developed

Depressing hydrophobic gangue minerals in the flotation of sulphide ores. Traditional prefloat to float and remove hydrophobic gangue minerals also floats and removes sulphide minerals due to the collectorless flotation of sulphide minerals upon surface oxidation. This technology introduces a prefloat cleaner stage where sulphide minerals recovered to the prefloat concentrate are depressed and separated from other hydrophobic gangue minerals at a low pulp potential using innovative reducing agents which do not affect the natural floatability of sulphide minerals. The prefloat cleaner tailings are then fed back to the main sulphide flotation circuit. Traditional reducing agents applied in prefloat require high consumptions and also interfere with the downstream flotation. Flotation tests using chalcopyrite and organic carbon show that the new approach can reduce the loss of chalcopyrite in the prefloat by over 40% without affecting the rejection of naturally hydrophobic gangue. This technology is commercialized by ALS.

GoldRecover. This technology improves the gold flotation recovery from comminution circuit and flotation circuit in gold processing operations using innovative chemicals to remove iron contamination from gold surfaces. Iron contamination prevents the adsorption of collectors on mineral surfaces. Based on a copper-gold ore, this technology achieved a gold recovery up to 30% and a copper recovery up to 12% higher than the base line. Based on a pyrite-gold ore, this technology achieved a gold recovery up to 10% higher than the base line. This technology is commercialized by Kinetic Group Worldwide.

Counteracting the adverse effect of cyanide in flotation. Cyanide added to depress gangue minerals or existing in process water can depress the flotation of sulphide and precious minerals. Cyanide can also complex with metal ions and form metal cyanide which can depress or activate mineral flotation depending on the pulp chemistry. The new technology involves the modification of pulp chemistry to make metal cyanide activate sulphide and precious minerals in flotation. This technology has been applied in the sponsor’s flotation plant to improve gold and silver recoveries since 2012.

Regrinding-flotation pre-treatment prior to CIL leaching. This technology has been applied in the sponsor’s plant to improve copper and gold recoveries while reducing cyanide consumption since 2012.

New sulphidisation to improve the flotation of oxidized minerals. Traditional sulphidisation suffers from drawbacks such as low efficiency, low pulp potential with a high reagent consumption and difficulty to sulphidise some minerals. The new sulphidisation we developed from the ARC Linkage Project LP160100619 supported by Newmont and Newcrest is conducted at higher pulp potential. Based on a stockpile copper ore, the new sulphidisation improves the copper recovery from 76% (base line) to 93% with even higher copper grade. Based on a stockpile pyritic ore containing gold, the new sulphidisation improves the recovery of total S from 48% (base line) to 68% and the recovery of sulphide S from 84% (base line) to 92%.

De-aerating froth products (patented technologies). Persistent froth in flotation concentrates presents operational challenges in downstream processing such as pumping in sumps and dewatering in filters and thickeners. In sumps where flotation concentrates are pumped to the dewatering process, the liquid level sensors often fail to detect the persistent froth which may lead to flooding of the processing area or even the entire plant. In dewatering to separate the solids in the concentrate from water, persistent froth significantly reduces both thickening and filtration efficiencies. The accumulated persistent froth floating on top of thickeners can also limit the capacity of the plant. Two types of physical froth de-aerators have been developed, one based on physical forces and another based on pressure changes. The de-aerator using physical forces is suitable for destabilising froth in sumps and filters, while the de-aerator using pressure changes is suitable for destabilising froth in thickeners. These technologies are commercialized by DADI (AUSTRALIA) Engineering Company.

Rapid measurement of coal oxidation (patented technology). This technology can be used in the plant to determine the degree of coal oxidation in natural environments within 5 minutes. The solvens used are environmentally friendly. Based on the degree of coal oxidation, a ratio of non-polar collector to polar collector can be determined to maximise the coal flotation while minimizing reagent consumptions. At one coal preparation plant this technology demonstrates an improvement of 5%-26% increase in the recovery of coal (based on applying optimised ratios of oily and polar collectors for the measured degree of coal oxidation).This technology is commercialized by interchem.

Apparatus and method for emulsifying oily collectors for use in flotation (patented technology). Oily collectors are widely used in the flotation of various commodities. Due to their low solubility in water, a large amount of oily collectors has to be used with a long conditioning time. A number of studies has demonstrated that chemical emulsifiers can significantly improve the efficiency of oily collectors by reducing their droplets. However, the application of chemical emulsifiers in flotation plants is limited due to their strong frothing abilities which can cause various problems. We have developed apparatus to physically emulsify oily collectors to droplets with a size ranging from 12.2 µm to 0.7 µm and found that the flotation performance increases with the decrease of droplet size until an optimal droplet size. Droplets smaller than the optimal size is not beneficial to flotation. The apparatus has a low equipment cost and low maintenance. Based on the test work on five different coal samples from 3 Australian coal preparation plants, the emulsified diesel could increase the yield by 2.5 to 15.3% at the same product ash content while reducing the diesel consumption by 97,412 L to 304,941 L per annum. This technology is commercialized by DADI (AUSTRALIA) Engineering Company.

Adriana Penman is a Senior Teaching-Focused Lecturer in Speech Pathology at The University of Queensland and the Deputy Director of Teaching and Learning for the School of Health and Rehabilitation Sciences (SHRS), Faculty of Health, Medicine and Behavioural Sciences (HMBS). Adriana is an experienced speech pathologist who has worked clinically in the areas of adult swallowing and communication disorders across the continuum of care and stuttering or fluency disorders across the lifespan. Adriana is passionate about sharing her knowledge, experience and expertise in these clinical areas through her teaching and research. She is a current member of Speech Pathology Australia and was the Co-Chair of the Asia Pacific Education Collaboration in Speech-Language Pathology (2022-2024).

Adriana's teaching and research programs are driven by the need to create innovative and authentic solutions such as embedding simulation-based learning within health professional curricula to support students’ preparation for practice. Adriana leads a program of research that aims to assist the growth of new graduates who are prepared for future success in speech pathology through their enriched student educational experiences. As a previous ITaLI Affiliate Academic, she is interested in embedding experiential learning opportunities such as simulation-based learning into university classrooms more broadly to assist student learning and engagement, and to build their confidence and readiness for placement. Additionally, within her Affiliate Academic role in 2023-2024, Adriana is the ITaLI representative on the UQ Fitness to Practise Working Party review which is necessitated to continue to guide and support students as developing practitioners.

Adriana's program of research is focussed on the investigation of teaching and learning practices within speech pathology and more broadly, within health science professions with a specific focus on graduate preparedness for placement and the transition to professional practice. She maintains national and international collaborations with a learning community of academics interested in scholarship of teaching. Adriana’s PhD (2021) investigated the use of simulation-based learning to prepare speech pathology students for clinical practice. Her research utilises mixed methodologies however, she has a particular interest in qualitative studies. Adriana is an active researcher in stuttering across the lifespan, teaching and student learning practices, practice education and simulation pedagogy. She is also interested in exploring students’ engagement in interprofessional education and collaborative practice.

Awards and Fellowships:

• UQ Award for Teaching Excellence (2024)
• Faculty of Health and Behavioural Sciences (HaBS) Award for Teaching Excellence (2023)
• Higher Education Academy Fellow (2019)
• Faculty of Heath and Behavioural Sciences (HaBS) Citation for Outstanding Contribution to Student Learning (2018)
• School of Health and Rehabilitation Sciences (SHRS) Early Career Citation for Outstanding Contribution to Student Learning (2017)
• School of Health and Rehabilitation Sciences (SHRS) Commendation for Early Career Citation for Outstanding Contribution to Student Learning (2016)

Dr Rob Pensalfini received his PhD in theoretical linguistics from the Massachusetts Institute of Technology in 1997, with research based on his fieldwork in the Barkly Tableland of Australia's Northern Territory. He then worked as a Visiting Assistant Professor at the University of Chicago for two years prior to commencing as a Lecturer in Linguistics at the University of Queensland in 1999. He was promoted to Senior Lecturer in Linguistics and Drama in 2003, and to Associate Professor in 2016. He has published several books and numerous articles in both linguistics and drama, including ground-breaking work on the performance of Shakespeare in prisons. He leads Australia's only ongoing Prison Shakespeare program and is the Artistic Director of the Queensland Shakespeare Ensemble.

Sarah Percy arrived at UQ from the University of Western Australia in 2016. Prior to her appointment at UWA, Sarah was University Lecturer and Tutorial Fellow in International Relations at the University of Oxford (Merton College). At Oxford, Sarah was on the steering committee of the Oxford Programme on the Changing Character of War. Sarah did her M.Phil and D.Phil as a Commonwealth Scholar at Balliol College, Oxford.

Sarah has three main research areas. She has had a long-standing interest in unconventional combatants, and has published widely on mercenaries, private military companies, and pirates. Sarah is interested in issues of maritime security generally, including piracy and counter-piracy, maritime crime, and the role of navies as security actors. She also conducts research at the nexus between international relations and international law, and is interested in how and why the use of force is regulated, and the relationship between norms and international law.

Professor Nigel Perkins is from a mixed grazing property in south west Queensland and completed a veterinary degree at the University of Queensland, followed by a Master of Science at The Ohio State University and a PhD in veterinary epidemiology at Massey University, New Zealand. He has practiced as a veterinarian in Queensland, New South Wales and Victoria and has worked as a veterinary academic clinician at university veterinary schools in Australia, the USA and New Zealand. In 2003 Nigel was promoted to Associate Professor in veterinary epidemiology and Group Leader of the EpiCentre, an internationally acclaimed epidemiology research and consultancy centre within the Institute of Veterinary, Animal and Biomedical Science, Massey University. Nigel then joined AusVet - a private epidemiology consultancy company - in 2004 and became a Director of AusVet in 2007. Nigel joined UQ in February 2016 as Professor of One Health and Academic Superintendent within the School of Veterinary Science. In October 2017 Nigel was appointed as the Head of School of the School of Veterinary Science.

Nigel has held leadership roles in a number of organisations, including research program manager for the Horse R&D Program within the Rural Industries Research and Development Corporation (RIRDC), surveillance program co-ordinator for the Australian Biosecurity Co-operative Research Centre (AB-CRC), and Chief Examiner of the Australian and New Zealand College of Veterinary Scientists. He is the current Chair of the Thoroughbred Advisory Panel for Agrifutures Australia. Nigel is recognised nationally and internationally as a leader in the field of veterinary epidemiology. He has broad experience in investigations of animal health, welfare, production and disease in a number of species including sheep, cattle, horses, poultry, pigs, aquatic species, and wildlife, as well as experience in human health projects. He has been involved in many short-term projects in Asian countries associated with capacity building in animal health, transboundary animal disease preparedness and response, risk analysis and disease outbreaks. Nigel's work has a strong focus on improving animal health, production and welfare outcomes in Australian livestock as well as providing leadership within the veterinary profession and in the broader areas of science, food sustainability and one health. .

Risti is passionate about promoting food security. Risti has undertaken extensive research in Australia and Asia, particularly in Indonesia, on topics such as the agriculture and livestock policy, Australia-Indonesia beef and dairy supply chains, agricultural trade, the adoption of agricultural innovations by smallholder producers, digital transformation and agrifood e-commerce, and has been a Principal Investigator in several international development projects. In recent years, her work has focused on building food system resilience, working with researchers and stakeholders across disciplines. Risti is also committed to improving gender inclusion in agriculture through leadership and providing opportunities to early career researchers. Risti has also served as an Expert Reviewer to assess multiple international development projects related to food security in recognition of her expertise in project management, the monitoring and evaluation framework and impact pathway.

Prior to her current role, Risti was a Senior Lecturer at the Department of Economics at Deakin University, serving as the main focal point for Deakin Business School’s involvement in teaching, research, and community engagement in the areas of agribusiness. Between 2016 and 2018, Risti was an Assistant Director of the ASEAN Integration Monitoring Directorate at the ASEAN Secretariat. After completing her postdoctoral fellowship in agriculture economics in 2012 at the School of Economics, the University of Adelaide, between 2013 and 2016, Risti was a Research Fellow/Lecturer at the Centre for Global Food and Resources, the University of Adelaide.

Risti has a PhD and Master in Economics from the University of Adelaide and a Bachelor of Science in Statistics (minor in Agricultural Economics) from IPB University.

Courses taught at UQ:

• Semester 1: MKTG7961 Agribusiness Marketing (Postgraduate)
• Semester 2: AGRC3000 Food & Fibre Case Studies III (Undergraduate; Capstone)
• Semester 2: MKTG3960 Applied Market Research (Undergraduate/Postgraduate)

Internal roles at UQ:

• The School of Agriculture and Food Sustainability (AGFS) - Chair of Engagement and Advancement Committee
• The Bachelor of Agribusiness Program Coordinator

Dr Simon Perry’s research interests include Russian music (history and criticism, and analysis) and analysis of late nineteenth and early twentieth century music.

He is a BMus (Hons) and MMus graduate from The University of Melbourne and a PhD graduate of the School of Music at UQ.

He lectures mainly in music techniques and music history.

Associate Professor Roslyn Petelin initiated and designed the post-graduate Writing, Editing, & Publishing (WEP) Program in the School of Communication and Arts. Prior to launching the program at UQ in 2000, she taught Literature and Film at the Brisbane Kindergarten Teachers’ College and Communication in the Faculty of Business at Queensland University of Technology and in the School of Hotel Administration at Cornell University.

Associate Professor Petelin edited the internationally refereed Australian Journal of Communication from 1988-2013 and is on the editorial boards of Business and Professional Communication Quarterly (USA) and Corporate Communications: An International Journal (UK). She is a past President and Honorary Life Member of the Australian and New Zealand Communication Association and has consulted extensively on writing, editing, and information design to public and private sector organisations in Australia, the UK, the USA, and S. E. Asia. In 2014, she developed and launched WRITE101x, a massive, open online course for UQx, which has attracted more than 950,630 registrants in its many offerings to date (end of 2024).

Research

Classical and contemporary rhetoric, academic writing, scholarly editing, writing about the arts, writing in the disciplines and the professions, University Writing Programs, publishing, knowledge management, information design, blended learning, and digital publishing futures.

Current research includes: Plain language, writing and editing in the disciplines and the professions, editing scholarly journals, e-Learning, and e-Publishing.

Matt lectures and researches management accounting. Matt completed his PhD in management accounting while working full-time in industry. Matt worked in accounting and finance roles including Group Financial Controller at GenesisCare (tier one private equity environment with CVC Worldwide), and Group Strategy and Financial Controller for Major Change at Woolworths Limited. Before that, Matt worked at Hewlett-Packard, Astra Zeneca, Tyco International, and Gerling Global. Earlier in his career, Matt started and sold an indoor rock climbing gym business and a climbing wall manufacturing business. Matt likes to bring innovative insights from sociology and strategic management literature to his management accounting research projects. Matt has developed a range of innovative teaching materials and materials for management accounting classrooms to give students real-life knowledge and skills. Matt received the 2022 UQ BEL Leading Teaching Award. Matt loves how at UQ he can flex time to balance his work and private lives.

Dr. Ove A. Peters joined the University of Queensland, Brisbane, Australia, in 2020 after faculty positions in Heidelberg, Germany and Zurich, Switzerland, as well as at the University of California, San Francisco. Most recently, he was the founding director of the postgraduate endodontic program at the Arthur A. Dugoni School of Dentistry in San Francisco, a professor with tenure and the Chair of the Department of Endodontics at that school.

Dr. Peters has wide-ranging clinical and research expertise and has published more than 200 manuscripts related to endodontic technology and biology. He has authored two books and contributed to several leading textbooks in dentistry; he also is an associate editor for the International Endodontic Journal as well as the Australian Endodontic Journal, an academic editor for PLOS One and serves on the review panel of multiple other journals. Among others awards, Dr Peters has received the Hans Genet Award of the European Society of Endodontology and more recently the Louis I. Grossman Award of the American Association of Endodontists. He is a Diplomate of the ABE, a member of OKU and a Fellow of the International and American Colleges of Dentistry.

Senior Staff Specialist Anaesthetist at the Department of Anaesthesia and Perioperative Medicine, Royal Brisbane and Women's Hospital.

I began my career working in industry for a company which specialised in in vitro diagnostic assays, for both human and veterinary health (AGEN Biomedical). There, I worked as a scientist for almost a decade in numerous departments of the commercialisation pipeline, including manufacturing, product development and research. Following this, I completed a PhD (2010) with the Australian Biosecurity Co-operative Research Centre for Emerging Infectious Disease and have since worked as a virologist at The University of Queensland.

My current research focuses on mosquito-borne virus discovery and the development of innovative vaccine and diagnostic platforms. Together, these research interests have culminated in a greater understanding of the mosquito virome and the development of new approaches for the detection of novel viruses. These include high throughput sequence and antigen-independent assays and the development of suites of unique monoclonal antibodies (mAbs), which in conjunction with deep sequencing platforms, provide comprehensive virus discovery strategies. Using this repertoire, I have been involved in the discovery and extensive genetic and phenotypic characterisation of new mosquito-borne viruses, belonging to more than six viral taxon (including Flaviviridae, Mesoniviridae, Bunyavirales, Reoviridae, Negevirus, Nodaviridae).

Harnessing the unique mosquito-specific growth restriction of the insect-specific flaviviruses that we discovered, my research now focuses on the application of these viruses to the development of novel, safe vaccines and diagnostics for multiple pathogenic flaviviruses.

Maree's program of research centres on older people experiencing disadvantage. Underpinning her research is the recognition of the rights of older people to participate in healthy ageing, and as such be housed well with access to community aged care services. Her work incorporates a number of themes but the central aim is to use research to improve the delivery of health and welfare services in the context of elder abuse, housing, homelessness with particular emphasis on the intersection of the policy areas of housing, health and income security necessary for ensuring wellbeing as people as they age. The results from her research have implications for how we think about older people without access to their rights, and living in poverty and at risk of homelessness with restricted access to community aged care and support.