8 research outputs found

    Chapter 3 : Japanese literature and “Homeland/Hometown”

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    Accompanying guidance document used to help assessors judge the risk of bias in each bias domain and overall risk of bias. (DOCX 29 kb

    Insights into Carbonation Kinetics of Fly Ash from Victorian Lignite for CO<sub>2</sub> Sequestration

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    Mineral carbonation of fly ash can both capture and store CO<sub>2</sub> permanently in a single process without long-term monitoring. Previous studies indicate that fly ash with high calcium and magnesium contents exhibit promising CO<sub>2</sub> fixation capability. However, the reaction mechanisms and kinetics involved in the carbonation reaction of fly ash is still not fully understood. In this study, a typical Victorian brown coal fly ash from Hazelwood power plant was selected to sequestrate CO<sub>2</sub> in a direct aqueous carbonation process. Experiments were conducted in a vessel reactor at various temperatures (40, 50, 60, and 70 °C), stirring rates (900, 1050, 1200, and 1350 rpm), and CO<sub>2</sub> pressures (3, 4, 5, 6, and 7 bar) to investigate the reaction kinetics and identify the rate-limiting steps of carbonation. The results show that both the carbonation rate and the maximum carbonation efficiency could be improved by optimizing parameters and by the introduction of NaHCO<sub>3</sub>. Also, the complex effects of the operating parameters on the carbonation rate and the maximum carbonation efficiency were investigated. The kinetic data can be well fitted by the surface coverage model with the <i>R</i><sup>2</sup> ≥ 0.98, indicating that the carbonation of fly ash can be physically expressed by this model. The maximum carbonation efficiency of fly ash could also be well-predicted by the model. In addition, the assumed mechanisms of the carbonation reaction were validated by particle size, surface area, and porosity changes of the fly-ash particles after carbonation reactions. The observation of scanning electron microscope equipped with energy-dispersive X-ray spectroscopy before and after carbonation also confirmed that the newly formed precipitates were not only deposited on the active surface but also filled the pores of the fly-ash particles

    Enhancing the translation of health behaviour change research into practice: a selective conceptual review of the synergy between implementation science and health psychology

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    Health psychology is at the forefront of developing and disseminating evidence, theories, and methods that have improved the understanding of health behaviour change. However, current dissemination approaches may be insufficient for promoting broader application and impact of this evidence to benefit the health of patients and the public. Nevertheless, behaviour change theory/methods typically directed towards health behaviours are now used in implementation science to understand and support behaviour change in individuals at different health system levels whose own behaviour impacts delivering evidence based health behaviour change interventions. Despite contributing to implementation science, health psychology is perhaps doing less to draw from it. A redoubled focus on implementation science in health psychology could provide novel prospects for enhancing the impact of health behaviour change evidence. We report a Health Psychology Review-specific review-of-reviews of trials of health behaviour change interventions published from inception to April 2020. We identified 34 reviews and assessed whether implementation readiness of behaviour change interventions was discussed. We then narratively review how implementation science has integrated theory/methods from health psychology and related discipline. Finally, we demonstrate how greater synergy between implementation science and health psychology could promote greater follow-through on advances made in the science of health behaviour change
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