2,592,661 research outputs found

    Radiation oncology areas of need: cancer incidence projections 2014-2024

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    Summary: Cancer incidence in Australia is projected to rise due to an expected increase in both the underlying cancer rates and in the Australian population over the age of 65. As a result, planning for cancer treatment services must anticipate future trends and age structures. This report presents projections of the number of new cases of cancer (all cancers combined) diagnosed in Australia from 2014 to 2024, by state and territory health planning regions. Projections of the number of new cancer cases for each health planning region have been calculated using trends in cancer incidence from 1997 to 2010-the latter being the most recent year for which national cancer incidence data are available-and population projections provided by the Australian Government Department of Health. Key findings In 2024, an estimated 169,648 new cases of cancer are expected to be diagnosed in Australia, an average annual increase of 3.3% per year from 2010 (Table 2.1). The proportional increase is expected to vary between states and territories. The largest increase is expected in Western Australia (5.0% per year), followed by the Australian Capital Territory (4.4%), Queensland (4.2%), the Northern Territory (3.9%) and Victoria (3.2%). New South Wales (2.5% per year), Tasmania (2.3%) and South Australia (1.9%) are expected to have the smallest annual proportional increases in cancer incidence rates. Important notes Projections are, by nature, estimates at best and are subject to a number of limitations and assumptions. The combined impact of these is such that the Australian Institute of Health and Welfare (AIHW) presents these projections only as approximate statistical extrapolations of the period 1997 to 2010 as a means to illustrate future changes that would occur if the stated assumptions were to apply over the projection interval. The AIHW can offer no guarantees as to the true predictive value of these estimates out to 2024.  These estimates were developed for the Australian Government Department of Health for their planning purposes. The methods used to derive projected cancer incidence counts for this report were developed so as to be consistent and comparable across all jurisdictional health planning regions.  The projection methodology does not take into account variations in historical incidence at the health planning region level. The resulting incidence projections also do not account for the future use of radiation oncology services by residents of other states, territories or health planning regions. For further information see the \u27Limitations and assumptions\u27 section in Chapter 1.  The projected estimates presented in this report may differ from those published by the states and territories, due to differences in the underlying methodologies. In particular, state and territory cancer registries have access to additional information that could lead their projections to be more accurate at the jurisdictional level.  Consumers are advised to exercise caution and consider the methodology when applying these estimates to other purposes.  The state and territory cancer registries have given approval to publish these data.&nbsp

    Combined Kelvin probe force microscopy and secondary ion mass spectrometry for hydrogen detection in corroded 2024 aluminium alloy

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    The capability of Kelvin probe force microscopy (KFM) to detect and locate hydrogen in corroded 2024 aluminium alloy was demonstrated. Hydrogen was introduced inside the 2024 alloy following a cyclic corrosion test consisting of cycles of immersion in 1 M NaCl solution followed by exposure to air at -20 °C. The combination of scanning electron microscopy, secondary ion mass spectrometry and KFM demonstrated that the grain and subgrain boundaries were preferential pathways for the short-circuit diffusion of hydrogen but also acted as a source of hydrogen diffusion in the lattice over distances of up to ten microns with non-negligible desorption when exposed to air at room temperature for 24 h

    Simulating the galvanic coupling between S-Al2CuMg phase particles and the matrix of 2024 aerospace aluminium alloy

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    Study of the corrosion behaviour of a magnetron sputtered Al–Cu/Al–Cu–Mg model alloy couple in sulphate solutions has been undertaken to gain insight into the galvanic coupling between the matrix and SAl2CuMg particles in the 2024 aluminium alloy (AA2024). Polarisation curves and local electrochemical impedance spectroscopy measurements (LEIS) were performed on the individual alloys and on the model alloy couple. SEM enabled correlation of electrochemical phenomena to the observed damage. The corrosion behaviour of the sputtered alloys was shown to be representative of the AA2024, with the Al–Cu–Mg alloy part undergoing localised corrosion and the Al–Cu alloy part remaining passive

    TeaP 2024 Detailed Program

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    Detailed program of the TeaP 2024 conference in Regensburgunknownunknow

    The contribution of hydrogen to the corrosion of 2024 aluminium alloy exposed to thermal and environmental cycling in chloride media

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    This work is focused on the role of hydrogen in corrosion damage induced by the cyclic exposure of 2024 aluminium alloy to chloride media with air emersion periods at room and/or negative temperatures. Various analysis and microscopic observation techniques were applied at intergranular corrosion defects. A mechanism involving the contribution of hydrogen to the degradation of the alloy mechanical properties is presented. Several consecutive stress states appear during cycling, resulting from volume expansion of the electrolyte trapped in the intergranular defects during emersion phases at -20°C. These stress states lead to hydrogen diffusion, transport and trapping

    Revista SCNK 2024

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    Revista SCNK 2024&nbsp

    Author Package-2024-Vol.20-Issue4

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    Author Package-2024-Vol.20-Issue

    Resolución CSPyGE Nº 17/2024. Sustituye.

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    Fil: Consejo Superior de Programación y Gestión Estratégica (P). Universidad Nacional de Río Negro. Río Negro, ArgentinaResolución CSPyGE Nº 17/2024. Sustituir el ARTÍCULO 1°, de la Resolución CSPyGE Nº 07/2024. Sustituir el Anexo I de la Resolución CSPyGE Nº 07/2024.tru

    An inverse method for evaluating weld residual stresses via fatigue crack growth test data

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    This paper presents an inverse method for calculating the thermal residual stresses in welded specimens via measured fatigue crack growth rates. Firstly, fracture-mechanics superposition law has been used to extract the stress intensity factor due to residual stress contribution from measured crack growth rate. Secondly, a so-called B matrix has been established by performing finite element analysis. Residual stress distribution is then determined by solving linear algebraic equations relating the B matrix and residual stress intensity factors obtained from crack growth test data. The inverse method has been validated by a well-established residual stress distribution and corresponding stress intensity factor, and then applied to an M(T) sample in 2024-T3 alloy with a longitudinal weld. Agreement with the measured residual stresses is reasonably good and reasons for certain differences between the calculated and measured are discussed
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