9,451 research outputs found
Comparison of 2nd generation LiDAR wind measurement technique with CFD numerical modelling
With the rapid increase in both on and offshore wind turbine deployment there is a requirement for a better understanding of the flow field in which such devices are deployed. Greater understanding of the flow field is necessary for optimisation of turbine control, turbine design, and machine interaction as well as maximise operation and performance. Advanced measurement tools can characterise the flow regime by either acoustic or laser pulses to measure the line of sight velocity of airborne particles. Such technology facilitates the acquisition of detailed and precise measurements of wind speed and direction remote from the device location; some solutions can even provide detail of the flow structure of the wind in the measurement field. In the current study an analysis of the methodology, relevance and potential of a 2nd generation LiDAR is presented along with results of a deployment at an onshore wind farm. The results demonstrate the potential of the LiDAR to capture details of wind farm flow and structures, along with the potential to corroborate numerical techniques with the measured data. Advances in Computational Fluid Dynamics (CFD) approaches coupled with the availability of significant computational resources makes it possible to conduct a valid comparative assessment. This paper presents the details of this comparative assessment and makes a judgement on the accuracy of the approach. The results show that remote sensing devices offer a useful and accurate capability for wind vector analysis and flow visualisation, along with the flexibility to organise bespoke measurement campaigns. The study also presents methodologies by which such devices can be used as validation tools for CFD
Development of Organic Breads and Confectionery
End of project reportIn recent years, concern for the environment and consumer dissatisfaction
with conventional food has led to growing interest in organic farming and
food. The demand has also been fuelled by highly-publicised food scares. Food
safety and genetic modification issues have led some consumers to opt for
organic food as a safer alternative.
Recently, there has been a significant increase in the number of launches of
organic bakery products in Ireland. As a result, there is an increased need to
identify suitable organic bakery ingredients for use in bread and confectionery
formulations. However, only a limited number of scientific studies on the
physical, chemical and functional properties of organic flours and ingredients
exist. The effects of commonly-used ingredients in baking, i.e. organic
improvers and fats, on the baking characteristics of organic products have not
yet been reported and little is known about the influence of approved
additives that may be beneficial to organic baking.
Arising from these gaps in the knowledge base on the use of organic flours and
ingredients, the objective of this study was to evaluate the chemical,
rheological and baking characteristics of white, wholemeal and confectionery
organic flours and to assess the baking potential of organic bakery ingredients,
in particular improvers, fats and additives. Ingredients and baked goods were
compared to non-organic controls.National Development Plan (NDP
Income Tax Aspects of Partnership Formation
Income Tax Aspects of Partnership Formatio
St. John of the Cross : the poetics of heroism and the heroism of poetics
In Chapter 1, I demonstrate a dialectical circularity between St. John's early years through the year 1568 and his theological, vocational and literary achievements. Chapter 2 offers a verbal and nominal analysis of the "Cántico espiritual" from which I show three new strains of interpretation: First, a personal dialogue on the attainment of true love; second, the inclusion of sacramental imagery; and third, a heroic trajectory of the poetic soul. In Chapter 3, I present an analysis of "Noche oscura" and "Llama de amor viva," whereby I demonstrate that both poems belong to the same poetics. All in all, this paper shows that St. John's biography, vocation and mystical heights merge, only later to emerge, as lyrical expressions of life, theology and divine experience
Acrylamide formation in potato products
End of Project ReportAcrylamide, a substance classified as a potential carcinogen, occurs in heated
starchy foods at concentrations many times in excess of levels permitted in
drinking water. Early surveys indicated that levels of acrylamide in potato
products such as French fries and potato crisps were the highest of the
foodstuffs investigated. The present project addressed this issue by
determining levels of acrylamide precursors (asparagine and reducing sugars)
in raw potatoes and levels of acrylamide in (i) potato products from different
storage regimes, (ii) spot-sampled potatoes purchased from a local
supermarket, (iii) samples that received pre-treatments and were fried at
different temperatures and (iv) French fries reheated in different ovens.A risk
assessment of the estimated acrylamide intake from potato products for
various cohorts of the Irish population was also conducted
A survey of practices, procedures, and time allotments devoted to the National Lunch Program by the principals, teachers, and lunchroom workers of the elementary public schools of Essex County
Thesis (Ed.M.)--Boston Universit
A case of bovine raw milk contamination with Listeria monocytogenes
peer-reviewedDuring routine sampling of bulk raw milk on a dairy farm, the pathogenic bacteria Listeria monocytogenes was found to be a contaminant, at numbers < 100 cfu/ml. A strain with an indistinguishable pulsed-field gel electrophoresis pattern was isolated from the bulk milk two months later. Environmental swabs taken at the dairy environment were negative for the presence of L. monocytogenes, indicating a possible case of excretion of the L. monocytogenes directly into the milk. Milk samples were collected from the individual cows and analysed, resulting in the identification of L. monocytogenes excretion (at 280 cfu/ml) from one of the 4 mammary quarters of one dairy cow out of 180. When the infected cow was isolated from the herd, no L. monocytogenes was detected from the remaining herd. The pulsed-field gel electrophoresis pattern of the strain from the individual cow was indistinguishable from that originally isolated from the bulk milk. The infected cow did not show any clinical signs of disease, nor did the appearance of the milk have any physical abnormalities. Antibiotic treatment of the infected mammary quarter was found to be ineffective. This study shows that there can be risks associated with direct contamination of raw milk with L. monocytogenes.Teagasc Walsh Fellowship; Irish Department of Agriculture, Fisheries and Food, Food Institutional Research Measure (Irish Microbial Risk Assessment Network project); European Union (EU), 6th Framework Programme (BIOTRACER project)
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