2,870 research outputs found
Summarised findings from Australian poultry odour research (2005–2018)
D&E related to odour is integral to addressing community concerns, reducing the potential for odour impacts and supporting sustainable growth of the chicken meat industry. By necessity, the industry is typically established on the urban fringe, which increases the potential for amenity impacts.
Odour RD&E has involved several research teams, including government agencies, universities, and consultancy businesses. The industry must now undertake the important tasks of broadly reviewing the overall knowledge that has been developed to date, taking stock of the achievements and challenges, and planning the path forward to address emerging and unresolved issues.
This project summarises the odour-related RD&E that has been supported by the Australian chicken meat industry (through AgriFutures Australia or the Poultry CRC) since 2005. It was funded by industry revenue, the Australian Government, and the Queensland Government Department of Agriculture and Fisheries
Early warning monitoring of natural and engineered slopes with Ground-Based Synthetic Aperture Radar
The first application of ground-based interferometric synthetic-aperture radar (GBInSAR) for slope monitoring dates back 13 years. Today, GBInSAR is used internationally as a leading-edge tool for near-real-time monitoring of surface slope movements in landslides and open pit mines. The success of the technology relies mainly on its ability to measure slope movements rapidly with sub- millimetric accuracy over wide areas and in almost any weather conditions. In recent years, GBInSAR has experienced significant improvements, due to the development of more advanced radar techniques in terms of both data processing and sensor performance. These improvements have led to widespread diffusion of the technology for early warning monitoring of slopes in both civil and mining applications. The main technical features of modern SAR technology for slope monitoring are discussed in this paper. A comparative analysis with other monitoring technologies is also presented along with some recent examples of successful slope monitorin
Artificial olfaction system for on-site odour measurement
Odour impacts and concerns are an impediment to the growth of the Australian chicken meat industry. To manage these, the industry has to be able to demonstrate the efficacy of its odour reduction strategies scientifically and defensibly; however, it currently lacks reliable, cost effective and objective tools to do so. This report describes the development of an artificial olfaction system (AOS) to measure meat chicken farm odour. This report describes the market research undertaken to determine the demand for such a tool, the development and evaluation of three AOS prototypes, data analysis and odour prediction modelling, and the development of two complementary odour measurement tools, namely, a volatile organic compound (VOC) pre-concentrator and a field olfactometer.
This report is aimed at investors in poultry odour research and those charged with, or interested in, assessment of odour on chicken farms, including farm managers, integrators, their consultants, regulators and researchers. The findings will influence the focus of future environmental odour measurement research
Rapid continuous chemical analysis of meat chicken shed emissions by SIFT–MS
Assessing and addressing odour impacts from poultry production is extremely difficult and subjective because the odorants involved and their dynamics over time and space are poorly understood. This knowledge gap is due, in part, to the lack of suitable analytical tools for measuring and monitoring odorants in the field. The emergence of Selected Ion Flow Tube – Mass Spectrometry (SIFT–MS) and similar instruments is changing that. These tools can rapidly quantify targeted odorants in ambient air in real time, even at very low concentrations. Such data is essential for developing better odour abatement strategies, assessment methods and odour dispersion models.
This project trialled a SIFT–MS to determine its suitability for assessing the odorants in meat chicken shed emissions over time and space. This report details evaluations in New Zealand and Australia to determine the potential of SIFT–MS as a tool for the chicken meat industry, including odour measurement (as a proxy for dynamic olfactometry).
The report is specifically targeted at those funding and conducting poultry odour research. It will be of interest to those involved with environmental odour monitoring and assessment in general. The high upfront cost of SIFT–MS will lead to potential users wanting compelling evidence that SIFT–MS will meet their needs before they invest in one
Detect-alert-deter system for enhanced biosecurity and risk assessment
This project developed a prototype of a machine vision-based surveillance system to enhance wildlife biosecurity by automatically detecting and deterring target wildlife. It was programmed to recognise and target ducks, which are avian influenza (AI) reservoirs and a potential biosecurity risk. Other species may also be reservoir or bridge species that spread AI, and therefore seasonal surveys of wild birds on and around meat chicken farms were undertaken as wild bird migration patterns vary for wild birds at different times of the year
A New Configuration of Vertical Axis Wind Turbine: Towards the Development of a highly distributed and efficient Wind Power Generation
Preliminary results obtained for a new configuration lift based vertical-axis wind turbine are shown. The turbine rotor is a cross flow fan type made with high curvature aerodynamic profiles. A reduced scale model of the turbine rotor has been designed and preliminary tested at the Department of Aerospace Engineering of the University of Pisa (rotor diameter 250 mm, rotor height 210 mm). The reduced scale model shows an efficiency of about eighteen per cent. The rotor is of a self-starting type. Two-dimensional CFD analyses have been performed applying both the Moving Reference Frame and the Moving Mesh conditions to the grid which surrounds the rotor blades (Fluent® Rel. 6.3 and STAR-CCM+® Rel. 6.04 have been used). Noticeable scale effects have been found numerically, so, the efficiency of a full scale lift based vertical axis multi-blades optimized wind turbine is expected to be comparable with lift based horizontal-axis wind turbines
Employment relations in Chile and Argentina
The study of employment relations in Chile and Argentina has been the outcome of research in various disciplines particularly sociology, political science, law, and history. This broadly defined scholarship has followed similar lines of analysis in both countries, reflecting their parallel socio-economic transformations and corresponding changes in employment relations actors and institutions. From the rise of import substituting industrialisation and developmentalist populist regimes in the 1930s, which provided the base upon which ‘classic’ employment relations systems began to take shape, to the crises and replacement of such regimes by military dictatorships and the introduction of neoliberalism in the 1970s, which redefined the relationship between capital and labour.Facultad de Humanidades y Ciencias de la Educació
Determinants of Risk Infection During Therapy with Anti TNF-Alpha Blocking Agents in Rheumatoid Arthritis
The use of TNF-alpha antagonists (infliximab, etanercept, adalimumab) has changed the course of many rheumatic diseases including rheumatoid arthritis (RA). Since their approval, some questions regarding their safety including infections have been observed. The aim of the study was to evaluate the changes in cytokines levels and cells subsets in patients with RA during anti TNF blocking agents treatment and the possible effect on infections’ development. We evaluated in 89 RA patients [39 treated with etanercept (ETN), 29 with adalimumab (ADA) and 21 with infliximab (IFN)] at baseline and after 6 months the following parameters: procalcitonin, ESR, CRP, cytokines as TNF, IL-6, IL-10, IL-8 and the TNF/IL-10 ratio, and peripheral mononuclear cells as CD3+, CD3+/CD4+, CD3+/CD8+, CD19+, CD3- /CD16+/56+, CD14+HLADR+, CD20+, CD19+/CD38+. Peripheral mononuclear cells were detected by flow cytometric system Cytomics FC500 and cytokines circulating levels by a quantitative sandwich enzyme immunoassay technique (Human IL-8 Instant ELISAe Bioscience, Human IL-6 Instant ELISA e Bioscience, Human IL-10 Instant ELISAe Bioscience and Human TNF-a Quantikine immunoassay RD system). A lower reduction of CD14+HLADR+ in ADA group 54.6±10.4% vs ETA 48.4±15.7% vs INF 40.7±16.5%, p<0.039 was found. No differences in all three groups on peripheral mononuclear cells CD3+, CD3+/CD4+, CD3+/CD8+, CD19+, CD 20+, CD19+/CD38+, CD3-/CD16+/56+, and cytokine circulating levels were found. The number of infections at 6 months was: 10.3% in ADA group, 12.8% in ETN group and 19.04% in IFN group. A correlation was found between the reduction in CD14+HLADR+ cells and IFN treatment. Our data showed that the level of CD14+HLADR+ cells was reduced during therapy with IFN. ADA and ETN don’t reduce lymphocyte populations and their subsets such as CD14+HLADR+ cells that play an important role host defence
Employment relations in Chile and Argentina
The study of employment relations in Chile and Argentina has been the outcome of research in various disciplines particularly sociology, political science, law, and history. This broadly defined scholarship has followed similar lines of analysis in both countries, reflecting their parallel socio-economic transformations and corresponding changes in employment relations actors and institutions. From the rise of import substituting industrialisation and developmentalist populist regimes in the 1930s, which provided the base upon which ‘classic’ employment relations systems began to take shape, to the crises and replacement of such regimes by military dictatorships and the introduction of neoliberalism in the 1970s, which redefined the relationship between capital and labour.Facultad de Humanidades y Ciencias de la Educació
Employment relations in Chile and Argentina
The study of employment relations in Chile and Argentina has been the outcome of research in various disciplines particularly sociology, political science, law, and history. This broadly defined scholarship has followed similar lines of analysis in both countries, reflecting their parallel socio-economic transformations and corresponding changes in employment relations actors and institutions. From the rise of import substituting industrialisation and developmentalist populist regimes in the 1930s, which provided the base upon which ‘classic’ employment relations systems began to take shape, to the crises and replacement of such regimes by military dictatorships and the introduction of neoliberalism in the 1970s, which redefined the relationship between capital and labour.Facultad de Humanidades y Ciencias de la Educació
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