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All Outputs (219)

Comparing historical and current spectrum occupancy measurements in the context of cognitive radio (2012)
Presentation / Conference Contribution
Mehdawi, M., Riley, N., Ammar, M., & Zolfaghari, M. (2012, November). Comparing historical and current spectrum occupancy measurements in the context of cognitive radio. Presented at 2012 20th Telecommunications Forum (TELFOR)

Cognitive radio (CR) technology promises to be one possible solution to solve the problem of lack of frequency spectrum, by allowing access of unlicensed users in licensed bands, based on an opportunistic approach and without interfering with the lic... Read More about Comparing historical and current spectrum occupancy measurements in the context of cognitive radio.

Hydrochemical processes in lowland rivers: Insights from in situ, high-resolution monitoring (2012)
Journal Article
Wade, A. J., Palmer-Felgate, E. J., Halliday, S. J., Skeffington, R. A., Loewenthal, M., Jarvie, H. P., Bowes, M. J., Greenway, G. M., Haswell, S. J., Bell, I. M., Joly, E., Fallatah, A., Neal, C., Williams, R. J., Gozzard, E., & Newman, J. R. (2012). Hydrochemical processes in lowland rivers: Insights from in situ, high-resolution monitoring. Hydrology and earth system sciences, 16(11), 4323-4342. https://doi.org/10.5194/hess-16-4323-2012

This paper introduces new insights into the hydrochemical functioning of lowland river systems using field-based spectrophotometric and electrode technologies. The streamwater concentrations of nitrogen species and phosphorus fractions were measured... Read More about Hydrochemical processes in lowland rivers: Insights from in situ, high-resolution monitoring.

The effect of osteocyte apoptosis on signalling in the osteocyte and bone lining cell network: A computer simulation (2012)
Journal Article
Jahani, M., Genever, P. G., Patton, R. J., Ahwal, F., & Fagan, M. J. (2012). The effect of osteocyte apoptosis on signalling in the osteocyte and bone lining cell network: A computer simulation. Journal of biomechanics, 45(16), 2876-2883. https://doi.org/10.1016/j.jbiomech.2012.08.005

Osteocytes play a critical role in the regulation of bone remodelling by translating strain due to mechanical loading into biochemical signals transmitted through the interconnecting lacuno-canalicular network to bone lining cells (BLCs) on the bone... Read More about The effect of osteocyte apoptosis on signalling in the osteocyte and bone lining cell network: A computer simulation.

From existing in situ, high-resolution measurement technologies to lab-on-a-chip – the future of water quality monitoring? (2012)
Journal Article
Wade, A. J., Palmer-Felgate, E. J., Halliday, S. J., Skeffington, R. A., Loewenthal, M., Jarvie, H. P., Bowes, M. J., Greenway, G. M., Haswell, S. J., Bell, I. M., Joly, E., Fallatah, A., Neal, C., Williams, R. J., Gozzard, E., & Newman, J. R. (2012). From existing in situ, high-resolution measurement technologies to lab-on-a-chip – the future of water quality monitoring?. Hydrology and earth system sciences discussions, 9(5), 6457-6506. https://doi.org/10.5194/hessd-9-6457-2012

An LPV pole-placement approach to friction compensation as an FTC problem (2012)
Journal Article
Chen, L., Patton, R., & Klinkhieo, S. (2012). An LPV pole-placement approach to friction compensation as an FTC problem. International Journal of Applied Mathematics and Computer Science, 22(1), 149-160. https://doi.org/10.2478/v10006-012-0011-z

The concept of combining robust fault estimation within a controller system to achieve active Fault Tolerant Control (FTC) has been the subject of considerable interest in the recent literature. The current study is motivated by the need to develop m... Read More about An LPV pole-placement approach to friction compensation as an FTC problem.

Small-vocabulary speech recognition using a silent speech interface based on magnetic sensing (2012)
Journal Article
Hofe, R., Ell, S. R., Fagan, M. J., Gilbert, J., Green, P. D., Moore, R. K., & Rybchenko, S. (2013). Small-vocabulary speech recognition using a silent speech interface based on magnetic sensing. Speech communication, 55(1), 22-32. https://doi.org/10.1016/j.specom.2012.02.001

This paper reports on word recognition experiments using a silent speech interface based on magnetic sensing of articulator movements. A magnetic field was generated by permanent magnet pellets fixed to relevant speech articulators. Magnetic field se... Read More about Small-vocabulary speech recognition using a silent speech interface based on magnetic sensing.

Modeling and analysis of intraband absorption in quantum-dot-in-well mid-infrared photodetectors (2012)
Journal Article
Hong, B. H., Rybchenko, S. I., Itskevich, I. E., Haywood, S. K., Tan, C. H., Vines, P., & Hugues, M. (2012). Modeling and analysis of intraband absorption in quantum-dot-in-well mid-infrared photodetectors. Journal of applied physics, 111(3), 033713. https://doi.org/10.1063/1.3684603

Intraband absorption in quantum-dot-in-a-well (DWELL) mid-infrared photodetectors is investigated using photocurrent spectroscopy and computationally cost-effective modeling linked to experimental data. The DWELL systems are challenging for modeling... Read More about Modeling and analysis of intraband absorption in quantum-dot-in-well mid-infrared photodetectors.

Reduced-size circularly polarised square microstrip antenna for 2.45 GHz RFID applications (2012)
Journal Article
Nguyen, D., Paulson, K., & Riley, N. (2012). Reduced-size circularly polarised square microstrip antenna for 2.45 GHz RFID applications. IET Microwaves Antennas and Propagation, 6(1), 94-99. https://doi.org/10.1049/iet-map.2011.0269

This study proposes a new design of circular polarised (CP), microstrip (patch) antenna using a set of slits and slots to effectively reduce the area of patch by 67% compared with the conventional, corner truncated, circular polarised square patch. T... Read More about Reduced-size circularly polarised square microstrip antenna for 2.45 GHz RFID applications.

A novel mathematical model of bone remodelling cycles for trabecular bone at the cellular level (2012)
Journal Article
Ji, B., Genever, P. G., Patton, R. J., Putra, D., & Fagan, M. J. (2012). A novel mathematical model of bone remodelling cycles for trabecular bone at the cellular level. Biomechanics and Modeling in Mechanobiology, 11(7), 973-982. https://doi.org/10.1007/s10237-011-0366-3

After an initial phase of growth and development, bone undergoes a continuous cycle of repair, renewal and optimisation by a process called remodelling. This paper describes a novel mathematical model of the trabecular bone remodelling cycle. It is e... Read More about A novel mathematical model of bone remodelling cycles for trabecular bone at the cellular level.

Speech synthesis parameter generation for the assistive silent speech interface MVOCA (2011)
Journal Article
Hofe, R., Ell, S. R., Fagan, M. J., Gilbert, J. M., Green, P. D., Moore, R. K., & Rybchenko, S. I. (2011). Speech synthesis parameter generation for the assistive silent speech interface MVOCA. Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH, 3009 - 3012

In previous publications, a silent speech interface based on permanent-magnetic articulography (PMA) has been introduced and evaluated using standard automatic speech recognition techniques. However, word recognition is a task that is computationally... Read More about Speech synthesis parameter generation for the assistive silent speech interface MVOCA.

The measurement of rain kinetic energy and rain intensity using an acoustic disdrometer (2011)
Journal Article
Winder, P., & Paulson, K. S. (2012). The measurement of rain kinetic energy and rain intensity using an acoustic disdrometer. Measurement Science and Technology, 23(1), 015801. https://doi.org/10.1088/0957-0233/23/1/015801

Microwave engineers and geomorphologists require rainfall data with a much greater temporal resolution and a better representation of the numbers of large raindrops than is available from current commercial instruments. This paper describes an acoust... Read More about The measurement of rain kinetic energy and rain intensity using an acoustic disdrometer.

Trends in the incidence of rain height and the effects on global satellite telecommunications (2011)
Journal Article
Paulson, K., & Al-Mreri, A. (2011). Trends in the incidence of rain height and the effects on global satellite telecommunications. IET Microwaves Antennas and Propagation, 5(14), 1710-1713. https://doi.org/10.1049/iet-map.2010.0507

Satellite communications using millimetre waves, in Ka band and above, experience significant fading by rain. Strong attenuation is experienced between the ground station and a level known as the rain height, in ITU-R recommendations assumed to be 36... Read More about Trends in the incidence of rain height and the effects on global satellite telecommunications.

A rain height model to predict fading due to wet snow on terrestrial links (2011)
Journal Article
Paulson, K., & Al-Mreri, A. (2011). A rain height model to predict fading due to wet snow on terrestrial links. Radio science, 46(4), Article RS4010. https://doi.org/10.1029/2010rs004555

Recommendation ITU‐R P.530‐13 provides an internationally recognized prediction model for the fading due to wet snow on low‐elevation, terrestrial microwave links. An important parameter in this model is the altitude difference between the link and t... Read More about A rain height model to predict fading due to wet snow on terrestrial links.

Development of a heterogeneous microwave network fade simulation tool applicable to networks that span Europe (2011)
Journal Article
Paulson, K. S., & Basarudin, H. (2011). Development of a heterogeneous microwave network fade simulation tool applicable to networks that span Europe. Radio science, 46(4), Article RS4004. https://doi.org/10.1029/2010rs004608

Several research groups in Europe are developing joint channel simulators for arbitrarily complex networks of terrestrial and slant path, microwave telecommunications links. Currently, the Hull Rain Fade Network Simulator (HRFNS) developed at Univers... Read More about Development of a heterogeneous microwave network fade simulation tool applicable to networks that span Europe.

Assessment of microfluidic system testability using fault simulation and test metrics (2011)
Journal Article
Myers, T. O., & Bell, I. M. (2011). Assessment of microfluidic system testability using fault simulation and test metrics. Journal of electronic testing : theory and applications : (JETTA), 27(3), 363-373. https://doi.org/10.1007/s10836-011-5202-2

In this paper we introduce a Microfluidic Fault Simulator, MFS, which uses a novel method of fault modeling and injection, the Fault Block, a generic and low abstraction fault modeling technique. This technique has been utilized over a wide range of... Read More about Assessment of microfluidic system testability using fault simulation and test metrics.

Evaluation of a silent speech interface based on magnetic sensing (2010)
Presentation / Conference Contribution
Hofe, R., Ell, S. R., Fagan, M. J., Gilbert, J. M., Green, P. D., Moore, R. K., & Rybchenko, S. I. (2010, September). Evaluation of a silent speech interface based on magnetic sensing. Presented at INTERSPEECH 2010, 11th Annual Conference of the International Speech Communication Association

This paper reports on isolated word recognition experiments using a novel silent speech interface. The interface consist of magnetic pellets that are fixed to relevant speech articulators, and a set of magnetic field sensors that measure changes in t... Read More about Evaluation of a silent speech interface based on magnetic sensing.

A phase modulation-based ultrasonic communication system using Variable Structure Control (2010)
Presentation / Conference Contribution
Ma, S., Wilkinson, A. J., & Paulson, K. S. A phase modulation-based ultrasonic communication system using Variable Structure Control. Presented at 2010 IEEE 12th International Conference on Communication Technology

Narrow bandwidth transducers used in existing ultrasonic data communication systems are known to be devices with a high Q resonant response and low coupling to both the electrical drive and acoustic output interfaces. These features limit the speed o... Read More about A phase modulation-based ultrasonic communication system using Variable Structure Control.

Isolated word recognition of silent speech using magnetic implants and sensors (2010)
Journal Article
Gilbert, J. M., Rybchenko, S. I., Hofe, R., Ell, S. R., Fagan, M. J., Moore, R. K., & Green, P. (2010). Isolated word recognition of silent speech using magnetic implants and sensors. Medical engineering & physics, 32(10), 1189-1197. https://doi.org/10.1016/j.medengphy.2010.08.011

There are a number of situations where individuals wish to communicate verbally but are unable to use conventional means so called 'silent speech'. These include speakers in noisy and covert situations as well as patients who have lost their voice as... Read More about Isolated word recognition of silent speech using magnetic implants and sensors.

Robust FDI applied to thruster faults of a satellite system (2010)
Journal Article
Patton, R. J., Polle, B., Simani, S., & Uppal, F. J. (2010). Robust FDI applied to thruster faults of a satellite system. Control engineering practice, 18(9), 1093-1109. https://doi.org/10.1016/j.conengprac.2009.04.011

This paper presents a practical solution to the problem of robust fault detection and isolation (FDI) for faults affecting the thrusters of a satellite system Mars Express (MEX). A non-linear model of MEX is used and the system is considered in the p... Read More about Robust FDI applied to thruster faults of a satellite system.