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4th International Conference on Sustainable Development in Civil, Urban and Transportation Engineering (CUTE 2024)
No full textVarious techniques exist for improving the mechanical property of soils. They differ in methods, consistency of treatment, expenses, environmental implications, and site accessibility demands. One of the recent techniques is through the use of microbial induction, and this paper aims to study the effect of commercial Bacillus subtilis on the shear strength of soils. The soils used for the experiment are for local coarse sand and black soil, and they are treated with the Bacillus subtilis with an activator period. The treated soils are subjected to shear box tests to determine the shear strength performance. It is expected that, throughout, the study will bring a sustainable approach to stabilizing and improving soil conditions. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025
25th International Conferenc on Web Information Systems Engineering (WISE 2024)
No full textInformation spread within social networks is a complex process with broad implications. Predicting information diffusion is crucial for understanding information spread within social networks. However, previous research has primarily focused on the homogeneity characteristics of internal cascades, such as temporal and social relationships, neglecting the impact of external information propagation. Additionally, conventional methods of feature integration simply merge cascade and user embeddings, which may introduce excessive redundant information and result in the loss of valuable contextual information critical for accurate predictions. To address these limitations, we present a novel model, the Equivariant Diffusion-based Sequential Hypergraph Neural Network with Co-Attention Fusion (EDSHNN-CAF). Within its cascade feature learning module, the model proposes hypergraphs with equivariant diffusion operators to incorporate external cascade influences alongside internal features. This approach effectively captures complex high-order interconnections and accurately reflects the dynamics of information diffusion. In the feature fusion and prediction module, a co-attention mechanism is designed to seamlessly integrate cascade and user embeddings, revealing their complex interdependencies and significantly enhancing predictive capabilities. Experimental results on four real datasets showcase the promising performance of EDSHNN-CAF in predicting information diffusion, outperforming existing state-of-the-art information diffusion prediction models
AIAA SciTech Forum 2025
No full textHypersonic aerothermoelastic data are needed to investigate fundamental physics and support the validation of numerical models. To this end, a novel experimental model, HyRAD, was developed and tested in TUSQ at Mach 5.9 with ∼220 ms flow time. On the model, a clamped-free-clamped-free compliant 120 mm x 60 mm x 1 mm AL6061-T6 panel was positioned at 0° and 5° inclination at room and elevated temperatures (maximum of 533 K) with the intention of measuring modal frequency shifts caused by temperature change. The panel was pre-heated radiatively by a thermo-resistively heated sheet of carbon-carbon. Thermal stress was prevented by allowing the panel to expand during heating, followed by the engagement of a remotely-actuated clamp to make the structure rigid. Panel temperatures were simulated and verified using infrared camera measurements. Deflections below 50 µm were resolved with a laser profilometer, schlieren imaging, and digital image correlation using in-house software. Thermally-induced frequency shifts for minimally-loaded bending modes (post flow and at 0° inclination) agreed with simulation. Thermally-induced frequency shifts were smaller at 5° inclination during flow. Torsional mode frequency shifts were consistently smaller than simulated
Intimate partner violence and sexual and reproductive health outcomes of women: An Australian population cohort study
Get PDFObjective
To examine sexual and reproductive health outcomes of women who report intimate partner violence (IPV) and compare these outcomes to women who did not report IPV.
Methods
Utilising the Cohort of women born in 1973–1978 and aged 18–23 years when recruited to participate in the National Australian Longitudinal Study on Women’s Health, we conducted an analysis in 2022–2023 of the relationships between exposure to IPV and reproductive and sexual health outcomes for this cohort over a decade (1996 to 2006). Logistic regression analyses were undertaken, mixed effects regression models were applied where feasible.
Results
The current study indicates exposure to IPV significantly increases the likelihood of forced sex, reporting endometriosis, infertility, miscarriage, pregnancy termination, along with greater odds of infertility, termination, and miscarriage increasing with greater exposure to IPV. Women reporting IPV also report a greater likelihood of STIs such as chlamydia, herpes, and genital warts, in addition to a higher incidence of abnormal Pap tests. Women reporting IPV were also more likely to have a larger number of births, with births occurring earlier than those who did not report IPV.
Conclusion
Addressing the global issue of IPV, healthcare organisations must offer robust support, including clear guidelines and protocols for managing IPV and the associated health risks among women. This should extend to providing access to resources and referral systems among those identified as experiencing IPV. Interdisciplinary collaboration remains essential to create a holistic approach to managing IPV and the associated health consequences to promote positive sexual and reproductive health outcomes for women
An improved hybrid method combined with a cloud-based supervisory control to facilitate smooth coordination under low inertia grids
No full textOver recent years, a transformation driven by the adoption of smart grid technologies has posed significant challenges to the traditional power grid. While this evolution promises greater efficiency, sustainability, and transparency for utility providers and consumers, it also introduces new complexities. Conventionally, inertia provided by synchronous generators plays a significant role in maintaining power grid stability by resisting large frequency deviations arising from sudden changes in generation or demand. With the increasing penetration of inverter-based resources such as solar and energy storage systems, the grid’s overall inertia can significantly be impacted. Despite various research on smart grid integration technologies, there is still a lack of rigorous studies focusing on grid performance during low inertia. For this reason, the paper proposed an optimized hybrid generalized droop method combined with a cloud-based supervisory control using the Internet of Things (IoT) to facilitate smooth transitions and maintain system stability. The presented approach synthesizes the traditional droop control and the generalized cloud-based algorithm to address challenges related to dynamic load variations and intermittent renewable energy sources. The framework has been validated on interconnected Simulink models running in a real-time cloud platform with data collected from local systems, interfaced in a closed-loop test environment. The proposed algorithm demonstrates outstanding performance in maintaining system stability under various operating conditions. Specifically, it limits frequency deviations to 0.01 %, significantly outperforming the traditional droop control algorithm, which exhibits deviations of 0.8 %. Similarly, voltage fluctuations are effectively minimized to 0.02 %, ensuring a stable operating voltage around 240 V. Furthermore, integrated with IoT-based control, the optimized hybrid generalized droop method mitigates transient instabilities, as evidenced by a 29 % reduction in voltage overshoot during fault clearance. These results highlight the effectiveness of the presented control strategy in enhancing microgrid resilience, particularly under high renewable energy penetration
36th International Conference of the Society for Information Technology and Teacher Education (SITE 2025)
Get PDFThis study examines technology integration in teacher education programs across multiple countries, focusing on pre-service teachers' self-efficacy, attitudes, and experiences with technology integration. Data from 791
participants were collected using validated instruments such as the Technology Proficiency Survey for Educators,
Stages of Adoption of Technology, Synthesis of Qualitative Evidence, and TPACK Core measure. Results demonstrated that pre-service teachers had positive attitudes and moderate self-efficacy toward educational technology integration, but these did not always align with perceived integration abilities in the classroom. A unique contribution to the field is the large international data set. The study reveals the complex nature of technology integration in teacher
education globally, suggesting areas for improvement such as increasing authentic experiences and enhancing feedback
mechanisms. Future research explores gender, program and country-specific variations and factors contributing to
effective technology integration in diverse educational contexts
Advanced 3D finite element limit analysis for assessing blowout stability in water main bursts
Get PDFThe increasing occurrence of sinkholes caused by water main bursts has attracted significant research attention in recent years. This study addresses the gap in evaluating soil blowout stability resulting from water main failures by investigating the three-dimensional stability of blowouts with circular, hemispherical, and spherical openings. Advanced finite element limit analysis (FELA) combined with adaptive meshing is employed to analyze critical factors, including soil cover depth, surcharge pressure, and internal water pressure, that contribute to blowout failure. In addition, dimensionless ratios are used throughout the paper to assess the influence of these factors. Numerical findings are rigorously validated, ensuring reliability and accuracy. Practical design charts are provided to accommodate a wide range of design scenarios, offering valuable guidance for engineers. This study introduces a pioneering sinkhole simulation methodology, leading to the understanding of three-dimensional blowout stability mechanisms
AQNML Conference 2025
No full textThe shortage of qualified health professionals in rural and remote areas presents significant challenges to sustainable healthcare delivery. Addressing this gap requires innovative solutions that harness local resources, strategic collaborations, and community engagement. The Bachelor of Nursing (end-to-end) program at the University of Southern Queensland (UniSQ), offered in Charleville, QLD (MM7), exemplifies this approach. This program is the only one of its kind to be offered in such a remote setting. Its success is driven in part by the strength of its collaboration with key stakeholders, including the South West Hospital and Health Service (SWHHS), South Queensland Rural Health (SQRH), Charleville State High School (CSHS), Murweh Shire Council, and other local entities. This approach cultivates a pipeline of locally trained nurses by offering tailored education, mentorship, and training experiences. These opportunities allow students to live, work, study, and undertake placements within their local area, equipping them with a deeper understanding of the rural health context and the challenges these communities face. Through the development of strong community connections gained via shared experiences, students emerge as our future nursing leaders upon graduation. This presentation will explore the successes, challenges, and future directions of the program, demonstrating how strategic partnerships can successfully bridge the workforce gap in rural nursing while developing our future nursing leaders
Climate-related migration practices from the Cancun Adaptation Framework to the Australia-Tuvalu Falepili Union treaty: Implications for the international legal regime
No full textAs the detrimental impacts of climate change intensify, individuals vulnerable to climatic disasters have left their homelands and migrated across borders for a better life. With the growing global circulation of human populations, the subject of international climate-related migration has gained much attention from the international community. From the Cancun Adaptation Framework, first recognising the importance of climate-related migration, to the Australia-Tuvalu Falepili Union treaty further advancing international migration practices by achieving bilateral agreement between States, the issues of climate-related migration have presented novel and complex challenges to international law. These challenges to the current international legal regime include lacking a more synergistic international legal system, existing legal gaps in international human rights protection, affecting States' compliance with their international obligations and threatening the national sovereignty and maritime rights of migrant-sending countries. Given the interdisciplinary and cross-cutting nature of climate-related migration practices, holistic legal responses aimed to coordinate multiple international legal regimes, provide comprehensive legal solutions to fill the legal gaps in climate-related migration, guarantee effective legal measures of human rights protection and prioritise national security of migrant-sending countries, should be considered to address current issues and prepare for potential risks associated with climate-related migration