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Earlier work has shown how to perform system impact studies of distributed generation interconnections using lengthy model development and analysis. In order to reduce the analysis time, hosting capacity methods have been developed to determine, in advance, distributed generation interconnections that can be accepted at certain locations up to certain sizes, without detailed study. Hosting capacity...
One of the main challenges inhibiting the integration of 2D crystals into top-gate field-effect transistors (FETs) is deposition of a uniform, scalable, high-quality dielectric. The most common and controlled method of deposition of thin dielectric films is atomic layer deposition (ALD); however, the inert surface of 2D materials offers no nucleation sites for the ALD precursors, resulting in non-uniform...
Ever since the modern multilateral trading system was established in the early postwar period, the United States has been a central player. At the close of World War II, when the system began to take shape, the United States was the world’s preeminent economic power and most influential democracy. U.S. negotiators took a leading role in conceptualizing and negotiating the agreement that became the...
Mitigation of arc flash incident energy is important to increase safety. One method is to reduce the duration of the arc flash by using protective relays to sense an arc flash fault. This method requires a supply-side overcurrent protective device that will respond to the protective relaying fast enough to mitigate the incident energy. In many existing installations, MV transformer primary fuses are...
The design of an automated tool for creating thermally textured 3D maps of a mine is presented. The tool is intended to simplify the process of gathering data underground, to test loose rock detection algorithms that will be deployed on a mine safety robot. The scanner needs to be robust and portable to enable it to be used easily in the cramped conditions of an underground mine. The scanner design...
Abdominal and thoracic [18F]FDG PET/CT imaging is routinely used in clinical practice and drug development but parametric imaging based on full kinetic analysis is rarely used due to noise induced bias and variance in kinetic parameters and analysis is usually restricted to semi-quantitative indices. Direct parametric estimation using 4D image reconstruction can potentially provide parametric maps...
Methods for adaptively fitting kinetic models to image data are explored. In conducting this fitting two goals are set: 1) that good fits are obtained for all image voxels; and 2) that where a primary biologically based model is appropriate, this model is used. The first goal is obtained through the inclusion of a more general secondary model. The second goal is achieved through the penalisation of...
Event source anonymity is potentially an important aspect of secure wireless sensor networks (WSN). The existing schemes developed for wired networks do not work in WSNs due to the characteristics of radio transmission and limited resources. A recent article proposed several solutions for the strong global adversary model. The protocols depend on dummy messages and special proxy nodes that filter...
Parametric estimation of perfusion using [15O]-H2O is an important biomarker for assessing treatment response in oncology clinical trials involving anti-vascular and anti-angiogenic agents. Traditionally the set of dynamic images are reconstructed independently, followed by post-reconstruction kinetic modelling. This methodology results in sub-optimal and often noisy end point parameters if voxel-by-voxel...
Our team recently developed a battery-operated autonomous undersea sensor system capable of performing, at predefined times, various computing intense operations over a several month period. Our sensor system allows for connection of a variety of traditional ocean observing sensors as well as up to 200 deep water acoustic sensors. Our system is unique in that it is powered completely from rechargeable...
Digital distribution is becoming an increasingly important method within the games industry. The leading consoles each possess their own bespoke platform to digitally deploy games applications to their users via the Internet, whilst the Windows PC gaming market is catered for by systems such as Valve's Steam platform. However, these digital content services are often machine-specific, proprietary,...
Dynamic PET imaging with [15O]H2O allows estimation of tumour perfusion in humans. For small regions of interest these estimates have limited precision due to statistical noise in the images. We have optimized the injected dose in order to improve the precision of these estimates. This optimization considers the effect of the scanner count-rate upon the local image variance and the subsequent effect...
Terahertz generation from gaseous media was further investigated by a gas jet system. The experimental results reveal that the terahertz radiation amplitude is correlated with the third order nonlinear susceptibility.
As the demand increases for service providers to offer more services while continuing to support revenue growth from entertainment offerings and third-party content, the greatest impact is on the service provider's network architecture. While it remains unseen in the background, it is here that the need for transactional services increases as the volume, complexity and real-time nature of next-generation...
Privacy credentials, such as user identification and passwords are vulnerable to phishing and spyware attacks. Through a combination of policy, monitoring, and enforcement these attacks can be mitigated.
Flash LADAR cameras based on continuous-wave, time-of-flight range measurement deliver fast 3D imaging for robot applications including mapping, localization, obstacle detection and object recognition. The accuracy of the range values produced depends on characteristics of the scene as well as dynamically adjustable operating parameters of the cameras. In order to optimally set these parameters during...
Clinical decision support systems (CDSS) can significantly increase the quality of care while decreasing cost and effort. They are difficult to develop and most existing systems are proprietary, tightly integrated with specific electronic medical record (EMR) systems, and expensive to own. EGADSS is an open-source CDSS that has been developed as a standalone, standards-based, re-usable component to...
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