System analysic

This purpose of this work was to investigate the patient radiation doses and image quality of a Philips/Agfa computed radiographic (CR) system and a Philips indirect-capture digital radiographic (DR) system in a paediatric setting. A CDRAD digital radiographic contrast-detail phantom was used to assess radiographic image quality. Perspex slabs of three different thicknesses (6, 11 and 16 cm) were used to simulate paediatric patients of three arbitrary ages.

159p runthenight05 01-03-2023 10 3   Download

The aim of this Master of Engineering (MEng) - Aerospace thesis is to study the structural response and failure of aerospace grade composites during exposure to fire. Key aspects of the research are to analyse the thermal and mechanical responses of laminates and sandwich composites in high temperature and fire environments, which result in softening and structural failure. The research is concentrated on carbon/epoxy laminates and sandwich composites, which are the most common composite materials used in aerospace structures.

209p runthenight05 01-03-2023 7 3   Download

This thesis attempts to address the problem of how best to remedy different types of channel distortions on speech when that speech is to be used in automatic speaker recognition and verification systems. Automatic speaker recognition is when a person's voice is analysed by a machine and the person's identity is worked out by the comparison of speech features to a known set of speech features. Automatic speaker verification is when a person claims an identity and the machine determines if that claimed identity is correct or whether that person is an impostor.

118p runthenight07 01-03-2023 6 3   Download

The aim of this research is to employ a sensitivity study for the total thrust of a ducted twin counter-rotating propeller system design for UAV applications using computational fluid dynamics (CFD). Two factors were investigated: propeller spacing and difference between blades pitch angle. Using discrete values for both factors, 32 designs were analysed and evaluated. The same approach was also used for an equivalent unducted propeller system to access the influence of the duct.

142p runthenight07 01-03-2023 11 3   Download

The above aims raise the following research objectives: To identify and analyse how people from Bogotá living in Melbourne understand, perceive and position themselves in relation to the Colombian socio-economic stratification system; To explore how people from Bogotá living in Melbourne re-think and reposition themselves in terms of socio-economic stratification once in Australia; To assess whether and how their perceptions of socio-economic stratification and repositioning after migration affects their self-perception and their perception of others.

273p runthenight04 02-02-2023 12 2   Download

The main objective of this research "Dynamic modelling of an aggregated solar-PV system for power system transient stability studies" is to develop an aggregated solar-PV model and critically analyse its performance under various operating conditions and faults.

104p runthenight04 02-02-2023 6 2   Download

This research develops a rich theoretical and empirical understanding of embeddedness by way of three dimensions (structural, relational and cultural), and investigates its implications for actors’ value co-creation behaviours and value-in-context outcomes. In addition, the research refines co-creation perspectives by examining a central boundary condition of co-creation processes. The data was collected in an online service environment and was analysed using structural equation modelling techniques.

183p runthenight04 02-02-2023 9 2   Download

The overall purpose of this study is to develop a set of criteria with which policy makers can evaluate their domain name policies, in order to improve the usability of domain names for end users. Specifically the study aims to: develop an understanding of the Australian domain name industry; identify the role of standards and policies; analyse and compare domain name policies; investigate the domain name system from the perspective of end users; and develop criteria to evaluate domain name policy, in order to improve end user usability.

128p runthenight04 02-02-2023 3 3   Download

Evaluating nonlinear HPA models regarding to problem of simulating intermodulation products (IMP). Proposing the polysine model for precise simulation of IMPs, especially for signals with complex structures. Proposing the use of predistortion schemes for MIMO-STBC systems based on thorough analyses of the nonlinear HPA effects on these systems with transmit/receive filters introduced in the model.

14p gaocaolon6 30-07-2020 36 1   Download

One of the easiest and efficient way of water conservation to solve drinking water scarcity is rooftop water harvesting. To evaluate the performance of the first flush with micromesh filter system, inflow and outflow of the rooftop water samples were analysed for pH, EC, TDS, SAL and TSS parameters. In general, the PH, electrical conductivity, and TDS of the roof water samples were within the drinking water standards and the first flush with micromesh filter system was found to reduce TDS values.

9p chauchaungayxua6 26-06-2020 15 2   Download

This paper analyses the contribution of both public and private sector in making telemedicine an alternate way of providing healthcare services especially in rural India.

8p guineverehuynh 19-06-2020 14 3   Download

This presents the advantage of decoupling the management of the minor actinides from the conventional fuel and not impacting the core reactivity coefficients. In both cases, the design and analyses of potential transmutation systems have been carried out in the frame of Gen IV fast reactor using a “perturbation” approach in which nominal power reactor parameters are modified to accommodate the loading of minor actinides.

8p christabelhuynh 31-05-2020 24 1   Download

Thesis purpose: Chemical system to clarify the basic theoretical issues of governance of commercial banks credit activity in the economy. Analysing the current situation credit management activity of commercial banks in Laos during the current period. Giving the achievements and limitations of the credit administration operations in Laos’s banks; on that basis, providing solutions for credit management of commercial banks in Laos in the process of international economic integration.

23p change01 05-05-2016 45 3   Download

Academic Article: Hot Weather Comparative Heat Balances in Pervious Concrete and Impervious Concrete Pavement Systems focuses on a site in Iowa where both a pervious concrete and a traditional concrete paving system have been installed and where temperatures were recorded within the systems for extended time periods. The analyses cover days with negligible antecedent precipitation and high air temperatures, which are extreme conditions for UHI impact.

7p pjflexri 10-03-2015 53 3   Download

Structural analysis of the lipopolysaccharide (LPS) of nontypeableHaemophilus in¯uenzaestrain 1003 has been achieved by the application of high-®eld NMR techniques, ESI-MS, capillary electrophoresis coupled to ESI-MS, composition and linkage analyses on O-deacylated LPS and core oligosaccharide material. It was found that the LPS contains the common structural element of H.

11p research12 01-06-2013 47 7   Download

Traditional analyses of the control and regulation of steady-state concentrations and fluxes assume the activities of the enzymes to be constant. In living cells, a hierar-chical control structure connects metabolic pathways to signal-transduction and gene-expression. Consequently, enzyme activities are not generally constant. This would seem to compromise analyses of control and regulation at the metabolic level.

10p research12 23-04-2013 48 2   Download

The localization of different classes of alcohol dehydro-genases (ADH) in the brain is of great interest because of their role in both ethanol and retinoic acid metabolism. Conflicting data have been reported in the literature. By Northern blot and enzyme activity analyses only class III ADH has been detected in adult brain specimens, while results from riboprobe in situ hybridization indicate class I as well as class IV ADH expression in different regions of the rat brain.

11p tumor12 20-04-2013 39 3   Download

Molecular mechanics calculations on conformers of Ac-HGly-NHMe, Ac-b 2 -HAla-NHMe and Ac-b 3 -HAla-NHMe indicate that low-energy conformations of the b-amino acids backbone, corresponding to gauche rotamers around the Ca–Cbbond, may overlap canonical backbone conformers observed for a-amino acids. Therefore, Sub-stance P (SP) was used as a model peptide to analyse the structural and biological consequences of the substitution of Phe7andPhe8by(R)-b 2 -HPheandofGly9byHGly (R)-b 2 -HAla or (S)-b 3 -HAla....

11p tumor12 20-04-2013 33 3   Download

Pest insects such asHelicoverpaspp. frequently feed on plants expressing protease inhibitors. Apparently, their digestive system can adapt to the presence of protease inhibitors. To study this, a trypsin enzymewas purified from the gut of insects that were raised on an inhibitor-containing diet. The amino-acid sequence of this enzyme was analysed by tandem MS, which allowed assignment of 66% of the mature protein amino acid sequence. This trypsin, called HzTrypsin-S, corresponded to a known cDNA sequence fromHelicoverpa. ...

10p tumor12 20-04-2013 26 3   Download

For a long time, the haemerythrin family of proteins was considered to be restricted to only a few phyla of marine invertebrates. When analysing dif-ferential protein expression in the methane-oxidizing bacterium, Methylo-coccus capsulatus(Bath), grown at a high and low copper-to-biomass ratio, respectively, we identified a putative prokaryotic haemerythrin expressed in high-copper cultures.

0p awards 06-04-2013 30 1   Download