Skip to main content

Research Repository

Advanced Search

All Outputs (47789)

An analytical and genetic-algorithm-based design tool for brushless excitation systems of low-medium rated synchronous generators
Presentation / Conference Contribution
Nuzzo, S., Galea, M., Gerada, C., & Brown, N. An analytical and genetic-algorithm-based design tool for brushless excitation systems of low-medium rated synchronous generators. Presented at 19th International Conference on Electrical Machines and Systems

The sizing procedures adopted for the everyday design of electrical machines are well known and consolidated. However, for brushless exciters of field wound, synchronous generators, there is significant room for improvement as the impact of the diode... Read More about An analytical and genetic-algorithm-based design tool for brushless excitation systems of low-medium rated synchronous generators.

Prediction of the voltage drop due to the diode commutation process in the excitation system of salient-pole synchronous generators
Presentation / Conference Contribution
Nuzzo, S., Galea, M., Gerada, C., & Brown, N. Prediction of the voltage drop due to the diode commutation process in the excitation system of salient-pole synchronous generators. Presented at 19th International Conference on Electrical Machines and Systems

The commutation processes in uncontrolled diode rectifiers have been extensively studied and modelled. However, in some applications, such as electrical power generation, the effects of these processes are often neglected. In low to medium rated, fie... Read More about Prediction of the voltage drop due to the diode commutation process in the excitation system of salient-pole synchronous generators.

The case for localised energy management to support resilient cities
Presentation / Conference Contribution
Rodrigues, L. T., Marsh, J., Kiamba, L., Gillott, M. C., & O'Doherty, T. The case for localised energy management to support resilient cities. Presented at PLEA 2016

Localised energy generation, ownership and management provide a mechanism to address issues of affordability, energy security, infrastructure resilience and the need to reduce greenhouse gases emissions. There is potential for the growth of community... Read More about The case for localised energy management to support resilient cities.

Time-modulated gain and loss parity-time symmetric resonators
Presentation / Conference Contribution
Phang, S., Vukovic, A., Creagh, S., Gradoni, G., Sewell, P., & Benson, T. M. Time-modulated gain and loss parity-time symmetric resonators. Presented at 24th International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling (OWTNM 2016)

D-MOD Dynamic Modelling of Operator Demand: a new simulator module for the evaluation of signaler’s demand
Presentation / Conference Contribution
Delamere, L., Lumby, A., Treble, P., & Golightly, D. D-MOD Dynamic Modelling of Operator Demand: a new simulator module for the evaluation of signaler’s demand. Presented at 2016 IEEE International Conference on Intelligent Rail Transportation

Estimating signaler demand is critical for ensuring signaling workstations are both feasible to run, and acceptable to staff. While human factors tools exist, they are typically manual, time consuming and rely of the skill of an expert. One solution,... Read More about D-MOD Dynamic Modelling of Operator Demand: a new simulator module for the evaluation of signaler’s demand.

Validation of spatial microsimulation models: a proposal to adopt the Bland-Altman method
Journal Article
Timmins, K. A., & Edwards, K. L. (in press). Validation of spatial microsimulation models: a proposal to adopt the Bland-Altman method. International Journal of Microsimulation, 9(2),

Model validation is recognised as crucial to microsimulation modelling. However, modellers encounter difficulty in choosing the most meaningful methods to compare simulated and actual values. The aim of this paper is to introduce and demonstrate a me... Read More about Validation of spatial microsimulation models: a proposal to adopt the Bland-Altman method.

Experimental study of a membrane-based dehumidification cooling system
Presentation / Conference Contribution
Chen, Z., Bai, H., Ye, Z., & Zhu, J. Experimental study of a membrane-based dehumidification cooling system. Presented at International Symposium of Heat Transfer and Heat Powered Cycles 2016

Membrane-based liquid desiccant dehumidification has attracted increasing interests with elimination of solution droplets carryover problem. A membrane-based hybrid liquid desiccant dehumidification cooling system is developed in this study, which ha... Read More about Experimental study of a membrane-based dehumidification cooling system.

Power conditioning of thermoelectric generated power using dc-dc converters: a case study of a boost converter
Presentation / Conference Contribution
Twaha, S., Zhu, J., & Yan, Y. Power conditioning of thermoelectric generated power using dc-dc converters: a case study of a boost converter. Presented at International Symposium of Heat Transfer and Heat Powered Cycles 2016

The near exhaustion of non-renewable energy resources such as fossil fuels followed by disastrous climatic changes have alerted the world to invest in alternative energy sources. Thermoelectric (TE) technology is responsible for innovating TE devices... Read More about Power conditioning of thermoelectric generated power using dc-dc converters: a case study of a boost converter.

Melt-processed PLA/HA platelet nanoparticle composites produced using tailored dispersants
Presentation / Conference Contribution
Parsons, A. J., Walton, K., Hild, F., Ilchev, A., Gimeno-Fabra, M., Tomczynska, M. M., Ward, M., Canciani, A., Choong, G. Y., De Focatiis, D. S., Lester, E., Grant, D. M., & Irvine, D. J. Melt-processed PLA/HA platelet nanoparticle composites produced using tailored dispersants. Presented at The 5th International Conference of Bionic Engineering

Hydroxyapatite (HA) nanoparticles, similar to those seen in the structure of human bone, have been produced via hydrothermal synthesisand used to produce nanocomposite materials via melt blending with poly(lactic acid)(PLA). Both of these processes a... Read More about Melt-processed PLA/HA platelet nanoparticle composites produced using tailored dispersants.

Modelling asset management of railway overhead line equipment
Presentation / Conference Contribution
Kilsby, P., Remenyte-Prescott, R., & Andrews, J. D. Modelling asset management of railway overhead line equipment. Presented at 9th IMA International Conference on Modelling in Industrial Maintenance and Reliability (MIMAR)

The overhead line equipment (OLE) is a critical sub-system of the 25kV AC overhead railway electrification system. There is a need to evaluate OLE asset management strategies through a whole life cost analysis that considers degradation processes and... Read More about Modelling asset management of railway overhead line equipment.

Numerical simulation of residual stresses induced by weld repair in a stainless steel pipe considering the influence of an initial fabrication weld
Presentation / Conference Contribution
Salerno, G., Bennett, C., Sun, W., & Becker, A. A. Numerical simulation of residual stresses induced by weld repair in a stainless steel pipe considering the influence of an initial fabrication weld. Presented at 10th International Conference on Residual Stresses (ICRS-10)

This work presents the application of a finite element (FE) model developed to simulate the repair process in the case of components with a pre-existing stress state. The approach is tested in the case of a repair of a laser beam weld in a stainless... Read More about Numerical simulation of residual stresses induced by weld repair in a stainless steel pipe considering the influence of an initial fabrication weld.

Integrated output filter inductor for permanent magnet motor drives
Presentation / Conference Contribution
Raza Khowja, M., Gerada, C., Vakil, G., Wheeler, P., & Patel, C. Integrated output filter inductor for permanent magnet motor drives. Presented at IECON 2016

This paper presents a novel approach to integrate the output filter inductor in permanent magnet synchronous motor (PMSM) drive system. The integrated output filter inductor is based on utilizing the motor magnetics as a filter inductance instead of... Read More about Integrated output filter inductor for permanent magnet motor drives.

Psychological therapy for people with tinnitus: a scoping review of treatment components
Journal Article
Thompson, D. M., Hall, D. A., Walker, D.-M., & Hoare, D. J. (in press). Psychological therapy for people with tinnitus: a scoping review of treatment components. Ear and Hearing,

Background: Tinnitus is associated with depression and anxiety disor- ders, severely and adversely affecting the quality of life and functional health status for some people. With the dearth of clinical psychologists embedded in audiology services an... Read More about Psychological therapy for people with tinnitus: a scoping review of treatment components.

Protocol for the development and validation of risk prediction equations to estimate absolute and conditional survival in patients with cancer
Book
Hippisley-Cox, J., & Coupland, C. Protocol for the development and validation of risk prediction equations to estimate absolute and conditional survival in patients with cancer. University of Nottingham

This is a protocol to describe the development and validation of a set of prediction equations to quantify absolute survival for patients with different types of cancers taking account of other clinical factors available through routine linkage of ca... Read More about Protocol for the development and validation of risk prediction equations to estimate absolute and conditional survival in patients with cancer.

Quantification of perception clusters using R-fuzzy sets and grey analysis
Presentation / Conference Contribution
Khuman, A. S., Yang, Y., John, R., & Liu, S. Quantification of perception clusters using R-fuzzy sets and grey analysis. Presented at 2016 International Conference on Grey Systems and Uncertainity Analysis (GSUA2016)

This paper investigates the use of the R-fuzzy significance measure hybrid approach introduced by the authors in a previous work; used in conjunction with grey analysis to allow for further inferencing, providing a higher dimension of accuracy and un... Read More about Quantification of perception clusters using R-fuzzy sets and grey analysis.

Protocol to assess the effectiveness and safety of novel oral anticoagulants (NOAC) vs warfarin in real world settings: cohort study in primary care
Book
Hippisley-Cox, J., & Coupland, C. Protocol to assess the effectiveness and safety of novel oral anticoagulants (NOAC) vs warfarin in real world settings: cohort study in primary care. University of Nottingham

Anticoagulants are used to treat thrombosis and to prevent thrombosis and stroke among those at high risk. Older anticoagulants such as warfarin can be effective but require regular monitoring and may lead to major bleeding and even death. Newer anti... Read More about Protocol to assess the effectiveness and safety of novel oral anticoagulants (NOAC) vs warfarin in real world settings: cohort study in primary care.

Superconducting and conventional electromagnetic launch system for civil aircraft assisted take-off
Presentation / Conference Contribution
Bertola, L., Cox, T., Wheeler, P., & Garvey, S. D. Superconducting and conventional electromagnetic launch system for civil aircraft assisted take-off. Presented at IEEE Energy Conversion Congress & Expo

This paper compares three possible linear motor topologies for an electromagnetic launch system to assist civil aircraft take-off. Assisted launch of civil aircraft has the potential of reducing the required runway length, reducing noise and emission... Read More about Superconducting and conventional electromagnetic launch system for civil aircraft assisted take-off.