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Articles 31 - 37 of 37
Full-Text Articles in Engineering
Magnetic Resonance Image Processing Using Levy Distributed Anisotropic Diffusion, Jonathan Blackledge, Matthew Blackledge
Magnetic Resonance Image Processing Using Levy Distributed Anisotropic Diffusion, Jonathan Blackledge, Matthew Blackledge
Conference papers
We consider the physical nature of the self-diffusion of water molecules in tissue and explore how (Nuclear) Magnetic Resonance (MR) imaging may be used as a means of measuring the rate of diffusion in vivo. A discussion is presented on how these techniques may be implemented as a non-invasive means of assessing the response of tumours to novel therapeutics including some of the basic advantages and disadvantages when compared to other methods. The physical basis and mathematical models for diffusion are considered together with models for the distribution of the diffusion co-efficient including a Levy distributed model. Using a …
Dynamic Electrical Ratings And The Economics Of Capacity Factor For Wave Energy Converter Arrays, Fergus Sharkey, Elva Bannon, Michael Conlon, Kevin Gaughan
Dynamic Electrical Ratings And The Economics Of Capacity Factor For Wave Energy Converter Arrays, Fergus Sharkey, Elva Bannon, Michael Conlon, Kevin Gaughan
Conference papers
Wave Energy Converters (WECs) have been in development for several decades with some devices now coming close to commercial realities. As such, pilot projects are being developed, particularly in the UK and Ireland, to deploy WECs on a pre-commercial array scale. The ultimate ambition is to have multiple WECs installed in a ‘wave farm’ in a similar fashion to offshore wind farms. For large scale wind farms the inter-array and export electrical systems can represent more than 20% of the project’s capital expenditure. Submarine power cables account for a large proportion of this cost. The same is expected to hold …
The Impact Of 3pl’S Green Initiatives On The Purchasing Of Transport And Logistics Services: An Exploratory Study, Pietro Evangelista, Maria Huge-Brodin, Karin Isaksson, Edward Sweeney
The Impact Of 3pl’S Green Initiatives On The Purchasing Of Transport And Logistics Services: An Exploratory Study, Pietro Evangelista, Maria Huge-Brodin, Karin Isaksson, Edward Sweeney
Conference papers
There is a lack of research investigating the interaction and reciprocal influences between the buyer perspective and the supplier of transport and logistics services. Studies on the buyer perspective analyse the selection criteria to buy 3PL services, while research focused on green 3PL services examine initiatives undertaken by these companies to provide more environmentally sustainable services. The objective of this paper is to fill this void through an explorative case study analysis on the environmental attitude of 3PL companies in order to derive relevant implications for buyer’s behaviour. The results provide useful guidelines to buyers for understanding awareness, initiatives as …
Marco, Micro, Structure, Agency: Analysing Approaches To Engineering Ethics, Eddie Conlon
Marco, Micro, Structure, Agency: Analysing Approaches To Engineering Ethics, Eddie Conlon
Conference papers
No abstract provided.
Accessible Rich Internet Applications: The Search Engine Challenge, Angela Kielthy
Accessible Rich Internet Applications: The Search Engine Challenge, Angela Kielthy
Conference papers
The perception that Rich Internet Applications (RIAs) and Accessible Rich Internet Applications (ARIAs) are inaccessible to search engines is perhaps one of the main factors that hinder their wider adoption by the web development community. Recent announcements that RIAs and ARIAs are becoming more search engine friendly is provoking web developers to look for further information and evidence that will support or refute these announcements.
This paper outlines research undertaken and tests performed to establish if RIAs and ARIAs developed using Adobe Flex are crawlable and indexable by the Google search engine by default.
The conclusion drawn from testing is …
Simulated Performance Intensity Functions, Andrew Hines, Naomi Harte
Simulated Performance Intensity Functions, Andrew Hines, Naomi Harte
Conference papers
Measuring speech intelligibility for different hearing aid fitting methods in a simulated environment would allow rapid prototyping and early design assessment. A simulated performance intensity function (SPIF) test methodology has been developed to allow experimentation using an auditory nerve model to predict listeners’ phoneme recognition. The test discriminates between normal hearing and progressively degrading levels of sensorineural hearing loss. Auditory nerve discharge patterns, presented as neurograms, can be subjectively ranked by visual inspection. Here, subjective inspection is substituted with an automated ranking using a new image quality metric that can quantify neurogram degradation in a consistent manner. This work reproduces …
Comparing Hearing Aid Algorithm Performance Using Simulated Performance Intensity Functions, Andrew Hines, Naomi Harte
Comparing Hearing Aid Algorithm Performance Using Simulated Performance Intensity Functions, Andrew Hines, Naomi Harte
Conference papers
Simulated performance intensity functions were used to quantitatively discriminate speech intelligibility through phoneme discrimination assessment. Listener test results for subjects with a wide range of sensorineural hearing losses were simulated using an auditory nerve model and compared to real listeners' unaided and aided performance. Simulations of NAL-RP and DSL 4.0 fitting algorithms were compared. Auditory nerve discharge patterns from the model were presented as neurograms. An automated ranking process was used to quantify neurogram degradation using a new measure, the Neurogram Similarity Index Measure (NSIM). The measure has previously been shown to correlate well in predictions of phoneme discrimination for …