Digital Commons Network^™

Finite Element Analysis Of Square Frp-Concrete-Steel Columns Under Eccentric Compression, Amin Izadi, Lip H. Teh, Aziz Ahmed, Maria Anna Polak

Faculty of Engineering and Information Sciences - Papers: Part B

This paper presents the development of a finite element (FE) methodology for investigating the behavior of the FRP, concrete and steel components of a square FRP-concrete-steel composite (FCSC) columns with a rotated square inner steel tube. The FE models are developed in ABAQUS using the authors’ recently refined Concrete Damage Plasticity Model (CDPM) in conjunction with the FRP damage criteria available in the literature. The developed FE methodology is verified against the authors’ experimental test results involving columns with normal and rotated square inner steel tubes under eccentric loading, and the FE analysis results are used to explain the …

Monitoring And Computational Modelling Of Ventilation And Dust Flow In Development Panel, Ting Ren, Ming Qiao, Jon Roberts, Jennifer Hines

Resource Operators Conference

Exposure to respirable coal dust and respirable crystalline silica dust in underground coal mines is increasingly becoming a concern as a result of the re-emergence of coal mine dust lung disease in New South Wales (NSW) and Queensland. A significant challenge in mitigating dust exposure lies in the better understanding of ventilation and dust behaviour in the gateroad development panels, which can be achieved by a combination of onsite monitoring and computational modelling. Based on site-specific conditions of the underground development panel excavated with a single-pass 12CM30 continuous miner, a three-dimensional computational model was built and verified with onsite dust …

Substitution Of Recycled Plastic Aggregates (Rpa) In Concrete And Its Influence On Pullout Capacity Of Mechanical And Chemical Anchors, Raza Akhtar, Graham Skellern, Ali Mirzaghorbanali

Resource Operators Conference

There is a lot of plastic going to land fill or entering environmentally sensitive systems, that could ideally be converted into a form or material that would be considered as a resource. Much of this plastic waste is not suitable for re-cycling or use, where exposed to sun light or weathering elements. Some of these materials have been converted to granular materials and used in sub-soil drainage systems as free draining materials and as substitute for aggregates in concrete pavements. There is significant enthusiasm for utilising ‘environmentally friendly’ construction systems and materials. Unfortunately, that enthusiasm can result in them being …

Resourcing And Recognition: Academics' Perceptions Of Challenges Experienced Embedding Work-Integrated Learning In The Curriculum, Bonnie Amelia Dean, Trish Mundy, Oriana Price, Meredith A. Kennedy, Glen Wheeler, Lynn Sheridan, Loretta Iskra

Faculty of Business and Law - Papers

This paper explores academics' perceptions of work-integrated learning (WIL) resourcing provisions and challenges at one institution to better envisage institutional support for WIL. The study draws on the WIL Curriculum Classification Framework to unpack how support and resourcing aligns to different modes of WIL. This study reports on the perceptions of 95 academics from a range of disciplines, teaching a variety of WIL activities. Findings are organized under core resourcing challenges: workload and recognition; developing WIL; administering and scaling WIL; sustainable management of industry relationships, and; other support requirements. Findings suggest mixed perceptions on WIL resourcing, space for more WIL …

Teaching Legal Research Subversively, Dorothea Anthony, Colin Fong

Faculty of Business and Law - Papers

This article presents a novel approach to teaching the compulsory law subject Legal Research. It considers that while Legal Research is traditionally a non-substantive subject that does not explain the law, let alone question or critique the law, it can in fact be taught in a way that encourages law students to think critically about legal institutions and the broader social context that gives rise to them. The article explores ways to pursue such legal instruction, with reference to activities administered in a legal research subject at the Law and Justice Faculty of the University of [withheld for peer review], …

United Nations Environment Programme (Unep), Questions And Answers About The Effects Of Ozone Depletion, Uv Radiation, And Climate On Humans And The Environment. Supplement Of The 2022 Assessment Report Of The Unep Environmental Effects Assessment Panel, Mads P. Sulbaek Andersen, Anthony L. Andrady, Alkiviadis F. Bais, Paul Barnes, Germar H. Bernhard, Scott N. Byrne, Anu M. Heikkila, Rachael Ireland, Marcel A. K Jansen, Sasha Madronich, Richard L. Mckenzie, Rachel Neale, Patrick J. Neale, Rachele Ossola, Qing-Wei Wang, Sten-Ake Wangberg, Christopher C. White, Stephen R. Wilson, Richard G. Zepp, Sharon A. Robinson

Faculty of Science, Medicine and Health - Papers: Part B

This collection of Questions & Answers (Q&As) was prepared by the Environmental Effects Assessment Panel (EEAP) of the Montreal Protocol under the umbrella of the United Nations Environment Programme (UNEP). The document complements EEAP’s Quadrennial Assessment 2022 (https://ozone. unep.org/science/assessment/eeap) and provides interesting and useful information for policymakers, the general public, teachers, and scientists, written in an easy-to-understand language.

Environmental Effects Of Stratospheric Ozone Depletion, Uv Radiation, And Interactions With Climate Change: 2022 Assessment Report, Anthony L. Andrady, Pieter J. Aucamp, Alkiviadis F. Bais, Paul W. Barnes, Germar H. Bernhard, Janet F. Bornman, D P. Hader, Anu M. Heikkila, Samuel Hylander, Janice Longstreth, Sasha Madronich, Patrick J. Neale, Rachel Neale, Krishna K. Pandey, Lesley E. Rhodes, Sharon A. Robinson, Matthew Robson, Kevin C. Rose, Barbara Sulzberger, Craig E. Williamson, Christopher C. White, Richard G. Zepp, Stephen R. Wilson, Sten-Ake Wangberg, Seyhan Yazar, Antony R. Young

Faculty of Science, Medicine and Health - Papers: Part B

The Montreal Protocol on Substances that Deplete the Ozone Layer was established 35 years ago following the 1985 Vienna Convention for protection of the environment and human health against excessive amounts of harmful ultraviolet-B (UV-B, 280-315 nm) radiation reaching the Earth’s surface due to a reduced UV-B-absorbing ozone layer. The Montreal Protocol, ratified globally by all 198 Parties (countries), controls ca 100 ozone-depleting substances (ODS). These substances have been used in many applications, such as in refrigerants, air conditioners, aerosol propellants, fumigants against pests, fire extinguishers, and foam materials.

The Montreal Protocol has phased out nearly 99% of ODS, including …

Evolving Us Marine Corps Concepts: Implications For The Adf, Chris Rahman

Australia’s Contribution to Alliance Strategy for the Western Pacific, 2025-2030

No abstract provided.

Advanced Missile Systems And Operations In The Western Pacific: Threats And Opportunities, Prakash Gopal, Chris Rahman

Australia’s Contribution to Alliance Strategy for the Western Pacific, 2025-2030

No abstract provided.

Proceedings Of The 2023 Resource Operators Conference, Naj Aziz, Kevin Marston, Ali Mirzaghorbanali

Resource Operators Conference

Proceedings of the 2023 Resource Operators Conference. All papers in these proceedings are peer reviewed. ISBN (ebook): 978-1-74128-368-6 ISBN (paperback): 978-1-74128-367-9.

Programa Del Medio Ambiente De Las Naciones Unidas (Unep), Preguntas Y Respuestas Acerca De Los Efectos De La Disminución Del Ozono, La Radiación Ultravioleta Y El Clima En Los Humanos Y El Medio Ambiente. Suplemento Del Reporte De Evaluación 2022 Del Panel De Evaluación De Los Efectos En El Medio Ambiente De Las Naciones Unidas, Mads P. Sulbaek Andersen, Anthony L. Andrady, Alkiviadis F. Bais, Paul Barnes, Germar H. Bernhard, Scott N. Byrne, Anu M. Heikkila, Rachael Ireland, Marcel A. K Jansen, Sasha Madronich, Richard L. Mckenzie, Rachel Neale, Patrick J. Neale, Rachele Ossola, Qing-Wei Wang, Sten-Ake Wangberg, Christopher C. White, Stephen R. Wilson, Richard G. Zepp, Sharon A. Robinson

Faculty of Science, Medicine and Health - Papers: Part B

Esta colección de preguntas y respuestas fue preparada por el Panel de Evaluación de los Efectos en el Medio Ambiente (EEAP por sus siglas en inglés) del Protocolo de Montreal bajo el amparo del Programa para el Medio Ambiente de las Naciones Unidas (PNUM). Este documento es un complemento de la Evaluación Cuatrienal 2022 realizada por el EEAP (https://ozone. unep.org/science/assessment/eeap), y provee de información interesante y útil para redactores de políticas públicas, maestros y científicos. Este P&Rs está escrito en un lenguaje de fácil comprensión para el público en general.

How Do The Life Histories Of Women Who Have Experience Domestic Violence Impact The Ways They Decide On And Engage With Higher Education?, Kelly Lewer

Faculty of Science, Medicine and Health - Papers: Part B

My doctoral inquiry focused on understanding the experiences of mature aged female higher education students who had experienced domestic violence. Guided by the concepts of Bourdieu’s (1977) capital, field, and habitus this feminist narrative inquiry analysed the life histories of nine women from across the Australian state of New South Wales in relation to their resources and engagement within higher education. The findings presented in this paper point to the women’s success through sheer determination and perseverance, the choosing to limit engagement outside of the classroom, and frustrations over a lack of understanding.

An Expert-Driven Framework For Applying Edna Tools To Improve Biosecurity In The Antarctic, Laurence J. Clarke, Justine D. Shaw, Leonie Suter, Javier Atalah, Dana M. Bergstrom, Elisabeth Biersma, Peter Convey, Michelle Greve, Oakes Holland, Melissa J. Houghton, Kevin A. Hughes, Emma L. Johnston, Catherine K. King, Arlie H. Mccarthy, Angela Mcgaughran, Luis R. Pertierra, Sharon A. Robinson, Craig D. H Sherman, Jonathan S. Stark, Mark I. Stevens, Jan M. Strugnell, Ulla Von Ammon, Nerida G. Wilson, Anastasija Zaiko, Anna J. Macdonald

Faculty of Science, Medicine and Health - Papers: Part B

Signatories to the Antarctic Treaty System’s Environmental Protocol are committed to preventing incursions of non-native species into Antarctica, but systematic surveillance is rare. Environmental DNA (eDNA) methods provide new opportunities for enhancing detection of non-native species and biosecurity monitoring. To be effective for Antarctic biosecurity, eDNA tests must have appropriate sensitivity and specificity to distinguish non-native from native Antarctic species, and be fit-for-purpose. This requires knowledge of the priority risk species or taxonomic groups for which eDNA surveillance will be informative, validated eDNA assays for those species or groups, and reference DNA sequences for both target non-native and related native …

United Nations Environment Programme (Unep), Plastics In The Environment In The Context Of Uv Radiation, Climate Change And The Montreal Protocol. 2023 Assessment Update Of The Unep Environmental Effects Assessment Panel, Marcel A. K Jansen, Anthony L. Andrady, Janet F. Bornman, Pieter J. Aucamp, Alkiviadis F. Bais, Anastazia T. Banaszak, Paul W. Barnes, Germar H. Bernhard, Laura S. Bruckman, Rosa Busquets, Donat P. Hader, Mark L. Hanson, Anu M. Heikkila, Samuel Hylander, Robyn M. Lucas, Roy Mackenzie, Sasha Madronich, Patrick J. Neale, Rachel E. Neale, Catherine M. Olsen, Rachele Ossola, Krishna K. Pandey, Irina Petropavlovskikh, Laura E. Revell, Sharon A. Robinson, T Matthew Robson, Kevin C. Rose, Keith R. Solomon, Mads P. Sulbaek Andersen, Barbara Sulzberger, Timothy J. Wallington, Qing-Wei Wang, Sten-Ake Wangberg, Christopher C. White, Antony R. Young, Richard G. Zepp, Liping Zhu

Faculty of Science, Medicine and Health - Papers: Part B

This Assessment Update by the Environmental Effects Assessment Panel (EEAP) of the United Nations Environment Programme (UNEP) considers the interactive effects of solar UV radiation, global warming, and other weathering factors on plastics. The Assessment illustrates the significance of solar UV radiation in decreasing the durability of plastic materials, degradation of plastic debris, formation of micro- and nanoplastic particles and accompanying leaching of potential toxic compounds. Micro- and nanoplastics have been found in all ecosystems, the atmosphere, and in humans. While the potential biological risks are not yet well-established, the widespread and increasing occurrence of plastic pollution is reason for …

Multi-Proxy Validation Of Glacial-Interglacial Rainfall Variations In Southwest Sulawesi, Alena K. Kimbrough, Michael K. Gagan, Gavin B. Dunbar, Wahyoe S. Hantoro, Chuan-Chou Shen, Hsun-Ming Hu, Hai Cheng, R Lawrence Edwards, Hamdi Rifai, Bambang W. Suwargadi

Faculty of Science, Medicine and Health - Papers: Part B

Speleothem δ¹⁸O is widely used as a proxy for rainfall amount in the tropics on glacial-interglacial to interannual scales. However, uncertainties in the interpretation of this renowned proxy pose a vexing problem in tropical paleoclimatology. Here, we present paired multi-proxy geochemical measurements for stalagmites from southwest Sulawesi, Indonesia, and confirm changes in rainfall amount across ice age terminations. Collectively, the stalagmites span two glacial-interglacial transitions from ~380,000 to 330,000 and 230,000 to 170,000 years ago. Mg/Ca in the slow-growing stalagmites is affected by water moving through the karst and prior calcite precipitation, making it a good proxy for …

Recreational Biosecurity Hygiene And A Trial Of Footwear Cleaning Stations In Kosciuszko National Park: Walkers’ Use Of Stations, Influences On Use, And Recommendations For Future Communication, Installation, And Design, Nicholas Gill, Leonie Miller, Maryann Barrington

Faculty of Arts, Social Sciences and Humanities - Papers

This project is part of the Accelerating Hawkweed Eradication campaign to eradicate Orange (Hieracium aurantiacum L.) and Mouse-eared (Hieracium pilosella L.) Hawkweed in NSW. These noxious weeds are classified as Prohibited Matter under the NSW Biosecurity Act 2015, and they are currently confined within the Kosciuszko National Park (KNP). If these weeds spread beyond KNP, they could present a risk to both the biodiversity and pasturing land of south-eastern Australia. Specifically, it has been estimated that 27 million hectares of south-eastern Australia are susceptible to Hawkweed, and across NSW there is a potential grazing loss of …

Overwhelmed And Frustrated: Experiences Of Workplace Sexual Harassment And Discrimination; The Barriers Faced With The Legal System, Amanda Chan, Zana Bytheway, Jessica C. Oldfield, Rachel Loney-Howes, Georgina Heydon

Faculty of Arts, Social Sciences and Humanities - Papers

With the high volume of sexual harassment and discrimination calls to the JobWatch Telephone Information Service, JobWatch was interested in understanding the gap in justice system data about the non-legal and legal actions that are taken by workers after being provided with information about their issue. To address this information gap, JobWatch undertook a survey of these TIS callers.

227 people responded to the JobWatch 2022 Workplace Sexual Harassment and Discrimination Survey and 202 people consented to share their response in this research report.

Covariants Of Gemination In Eastern Andalusian Spanish: /T/ Following Underlying /S/, /K/, /P/ And /Ks/, Alfredo Herrero De Haro

Faculty of Arts, Social Sciences and Humanities - Papers

In Eastern Andalusian Spanish, consonants are deleted in syllable-final position, triggering regular gemination of a following consonant, even across word boundaries. This paper investigates five underlying phonemic contexts involving /t/, including singleton /t/ and four different underlying /C+t/ sequences that typically surface as [t:], by analyzing how durational and formant differences vary depending on the presence and identity of the preceding underlying consonant. Following the acoustic and statistical analyses of 444 instances of /ˈeta/, /ˈesta/, /ˈekta/, /ˈepta/ and /ˈeksta/, a Discriminant Function Analysis shows that differences in the total duration of /t/ and in the duration of the closure of …

The Fate Of Organic Species Upon Sintering Of Thiol-Stabilised Gold Nanoparticles Under Different Atmospheric Conditions, Paige K. Summers, Alexander Angeloski, Richard Wuhrer, Michael B. Cortie, Andrew M. Mcdonagh

Scopus Harvesting Series

Understanding and controlling the sintering behavior of gold nanoparticles is important for applications such as printed electronics, catalysis and sensing that utilise these materials. Here we examine the processes by which thiol-protected gold nanoparticles thermally sinter under a variety of atmospheres. We find that upon sintering, the surface-bound thiyl ligands exclusively form the corresponding disulfide species when released from the gold surface. Experiments conducted using air, hydrogen, nitrogen, or argon atmospheres revealed no significant differences between the temperatures of the sintering event nor on the composition of released organic species. When conducted under high vacuum, the sintering event occurred at …

Capital, Change And Elsie's Place: Understanding The History Of Safe Accommodation In Australia, Kelly Lewer

Scopus Harvesting Series

Gendered violence, specifically, domestic violence, continues to be a global issue impacting the health and well-being of women despite the improvements to women's rights and the expansion of women's health and well-being services in the 1970s. While considerable attention has been given to this period of time, scant attention has been given to understanding the resources and change processes involved in the opening of Australia's feminist-led women's health and wellbeing services from a theoretical perspective. During a Visiting Scholar appointment at the State Library of New South Wales, Sydney, Australia I undertook a review of historical documentation and academic literature …

The Case For A ‘Treating Customers Fairly’ Regime In Australia: Evidence From Other Jurisdictions And A Consumer Survey, Nicola Howell, Therese Wilson, Nina Reynolds, Andy Schmulow, Paul Mazzola

Faculty of Business and Law - Papers

In the light of recommendations from the Financial Services Royal Commission, the Australian Law Reform Commission is currently reviewing the financial services regulatory framework, including to examine how fundamental norms (such as fairness) can be more effectively incorporated. In this article, we present results from a national survey of 2026 consumers to show that consumers have high expectations of fair treatment by firms, but that those expectations are not always met. Given these findings, we argue that a principles-based and outcomes focused ‘Treating Customers Fairly’ regime, such as those implemented in the United Kingdom and South Africa, should be given …

Asia In Australia: History On The Streets, Vera Mackie

Faculty of Arts, Social Sciences and Humanities - Papers

There are various ways of apprehending the past: archival research, material culture, media, memory and experiencing the traces of 'history on the streets'. This photo essay follows some walks around the central business district of Sydney and its close surrounds. I trace the visual evidence of 'Asia in Australia', triangulating the visual evidence with archival and other sources. When we talk about Asia and Australia we are no longer simply talking about bilateral relationships between two hermetically sealed entities called 'Australia' and 'Asia' but rather a series of connections which brings together Australians, Asians and Asian Australians in global chains …

Movements Of Personnel And Materials In Australian Underground Coal Mines, Chris Harvey, David Walker, Ernest Baafi, Ian Porter, Senevi Kiridena

Resource Operators Conference

With the desire to optimise the development of roadways in underground coal mines as operations expand, it logically followed that any increase in the development rate will require more efficient logistics management, especially the timely supply of roof support materials (bolts, chemicals and mesh) to each active face area. Logistics management in general was not considered as a key issue when initial or long-term planning of an underground coal mine is undertaken. It is traditionally assumed that whatever production targets are set that logistics can keep up or that it is retrospectively managed after an identifiable bottleneck.

Fighting Mine Fires With A Small Turbine Engine, Mark Kleinhans, Eleonora Widzyk-Capehart, Andre De Kock, Gareth Kennedy

Resource Operators Conference

In the past, exhaust emissions and steam produced from large turbine engines have been successfully used to extinguish fires or early stages of spontaneous combustion of coal in underground coal mines. Extinguishing fires with a turbine engine exhaust emissions and steam eliminates the heat and displaces the oxygen. However, large turbine engines require a pre-existing connection port and the ability to force exhaust gasses throughout the existing underground coal mine ventilation systems and roadways. Simtars is assessing the viability of a smaller turbine engine, with the vision of the exhaust emissions being deployed through existing or newly drilled boreholes in …

Research Into The Selection And Efficiency Of Nozzles For Airborne Dust Suppression, Jon Roberts, Rongfu Liao, Ming Qiao, David Hastie, Peter Wypych

Resource Operators Conference

The suppression of airborne dust is a significant issue within the resources industry that has been highlighted by the re-emergence of lung diseases such as coal workers’ pneumoconiosis and silicosis. A prominent method for the control of airborne dust is the use of water spraying systems to suppress dust and minimise its liberation into the workplace. The challenge with water spraying systems for airborne dust suppression lies largely in the correct selection of nozzles to suit the application. This paper outlines work conducted by the University of Wollongong with funding from the Coal Services Health & Safety Trust to investigate …

Investigating A Potential Geothermal Play In The Southern Sydney Basin, Yangguang Han, Kumari W.G.P., Lloyd White, Dominique Tanner, Titus Murray

Resource Operators Conference

Geothermal energy is a renewable resource that will be part of the world’s transition to clean power production. Different technologies can be utilised to extract heat or produce geothermal-based electricity. The Geological Survey of NSW has identified several regions across the state where there are higher than average geothermal gradients. These regions in the southern Sydney Basin are investigated with the aim of determining if the high temperatures might be related to subsurface rocks with relatively high concentrations of radiogenic isotopes that might create a ‘hot dry rock’ play. Rock properties are tested that would be required to generate a …

Preliminary Studies Of An Energy Efficient Ble Wireless Network For Underground Positioning Systems, Vihanga Peiris, Kai Zhao, Binghao Li, Henry Gong, Aruna Seneviratne

Resource Operators Conference

Positioning is a safety measure and a disaster management method used in the mining industry. Therefore, a positioning system is vital to ensure safety and reduce the risks to life of the workers at mine sites. The major challenge with existing positioning systems located in underground mines is the sending the collected positioning data to the positioning server through the energy-constrained, stationary wireless network nodes. This research is the first to identify the power challenge in sending positioning data in underground mines. By exploiting the mining environment, the authors of this paper propose to use Bluetooth Low Energy (BLE) communications …

Shear Strength Properties Of Clean And Clay Infilled Rock Joints: An Analysis Of The Impast Of Moisture Content Under Cnl Conditions, Elizabeth Downing, Ali Mirzaghorbanali, Naj Aziz

Resource Operators Conference

Rock joints are a type of fracture or discontinuity that have little or no movement that is parallel to the plane of fracture caused by forces acting perpendicular to the fractured walls, where the opening of the break is parallel to the face of least resistance. These are common phenomena in geology around the world and range from small scale to tectonic fault lines. The first part of this project focused on the effect of clean rock joints on the shear strength of the joint at normal loads of 100, 300, 500 and 700 kPa. Rock joints leave an opportunity …

Spt-Cpt Correlation In Southeast Queensland, Australia, Yohanne Faivre, Ali Mirzaghorbanali, Hadi Nourizadeh, Behshad Jodeiri Shokri, Kevin Mcdougall, Naj Aziz

Resource Operators Conference

Among the most popular in situ investigation techniques for identifying subsurface strata, cone penetrometer testing (CPT) and standard penetrometer testing (SPT) are employed in geotechnical engineering. In fact, both tests are adopted to correlate a wide range of geotechnical parameters in various design applications. The cost associated with conducting both in situ tests at the same locations often results in one method being chosen over the other. Hence, engineers have to corelate one of the tests’ parameters into the other test using empirical correlation in translating SPT blow counts (SPT-N) into CPT cone tip resistance (CPT-q_c). However, disadvantages …

Mapping Water Content In Drying Antarctic Moss Communities Using Uas-Borne Swir Imaging Spectroscopy, Darren Turner, Emiliano Cimoli, Arko Lucieer, Ryan S. Haynes, Krystal Randall, Melinda J. Waterman, Vanessa Lucieer, Sharon A. Robinson

Scopus Harvesting Series

Antarctic moss beds are sensitive to climatic conditions, and both their survival and community composition are particularly influenced by the availability of liquid water over summer. As Antarctic regions increasingly face climate pressures (e.g., changing hydrology and heat waves), advancing capabilities to efficiently and non-destructively monitor water content in moss communities becomes a key research priority. Because of the complexity induced by multiple micro-climatic drivers and its fragility, tracking the evolution and responses of moss bed moisture requires monitoring methods that are non-intrusive, efficient, and spatially significant, such as the use of unoccupied aerial systems (UAS). In this study, we …