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Browsing Electronic & Computer Engineering by Title

Browsing Electronic & Computer Engineering by Title

Now showing items 135-154 of 235

New adaptive speech enhancement system using a novel wavelet thresholding technique

Mahdi, Abdulhussain E; Jafer, Essa (World Scientific and Engineering Academy and Society (WSEAS), 2004)

A new adaptive speech enhancement system, which utilizes a second-generation wavelet transform (SGWT) decomposition and a novel adaptive subband thresholding technique, is presented. The adaptive thresholding technique ...
A new fault tolerant architecture for time sensitive automation networks

Kleineberg, Oliver (University of Limerick, 2014)

Networked control systems have been widely used in Industrial Automation since the latter part of the 20st century. Such networks have evolved from small systems with proprietary and slow Fieldbus technology to a much ...
New single-ended objective measure for non-intrusive speech quality evaluation

Mahdi, Abdulhussain E; Picovici, Dorel (Springer, 2010)

This article proposes a new output-based method for non-intrusive assessment of speech quality of voice communication systems and evaluates its performance. The method requires access to the processed (degraded) speech ...
New tools for easing system integration, deployment, monitoring and maintenance of ocean energy devices

Omerdic, Edin; Toal, Daniel; Finn, Paddy (European Association for the Development of Renewable Energies, Environment and Power Quality, 2010)

This paper describes a set of novel aiding tools and technologies for system integration, deployment, monitoring and maintenance of ocean energy devices. The main component of the system is smart remotely operated vehicle ...
NiO-TiO2 thick-films for detection of alcohol vapours at room temperature

Lyons, G.M.; Arshak, Khalil; Cavanagh, Leon M.; Gaidan, Ibrahim; Moore, Edward G.; Clifford, S.A.; Phelan, R.; Cunniffe, Colm; Harris, John A. (IEEE Computer Society, 2004)

The response of screen-printed thick-films of NiO/TiO2 to organic solvent vapours was studied. It was found that these films displayed a significant resistance change in response to the vapours even at room temperature. ...
Noise susceptibility of precision temperature sense architectures in highly integrated power converters

Murray, Derek M (University of Limerick, 2013)

The design specifications for power converters are getting continuously tighter, keeping pace with the ever-increasing power requirements of the loads they supply. A step-down DC-DC converter used in modern computing ...
Non-contact biopotential sensor for remote human detection

Mahdi, Abdulhussain E; Faggion, Lorenzo (IOP Publishing, 2011)

This paper describes a new low-cost, low-noise displacement current sensor developed for non-contact measurements of human biopotentials and well suited for detection of human presence applications. The sensor employs a ...
Non-invasive haemoglobin monitoring by an LED based optical sensor system

Timm, Ulrich (University of Limerick, 2011)

During the perioperative period, which includes the period before surgery (preoperative), during surgery (intraoperative) and after surgery (postoperative), it is essential to measure diagnostic parameters such as: blood ...
Non-invasive optical real-time measurement of total hemoglobin content

Timm, Ulrich; Leen, Gabriel; Lewis, Elfed; McGrath, D; Kraitl, J; Ewald, H (Elsevier, 2010)

Hemoglobin (Hb) is an important component of red blood cells. The primary function of Hb is to transport oxygen from the lungs to the body tissues and to carry carbon dioxide back to the lungs from the body tissues. The ...
A novel approach to electronic nose-head design, using a copper thin film electrode patterning technique

Arshak, Khalil; Cunniffe, Colm; Moore, Edward G.; Cavanagh, Leon M.; Harris, John A. (IEEE Computer Society, 2005)

Presented in this paper is a process for manufacturing copper electrode patterns on alumina substrates using thin film deposition, spin coating and printed circuit board (PCB) etching techniques. The process was used for ...
A novel pole–zero compensation scheme using unbalanced differential pairs

Ryan, Adrian P.; McCarthy, Oliver (IEEE Computer Society, 2004)

The main problem in extending continuous-time filtering to higher frequencies is the sensitivity of high-frequency filters to analog integrator nonidealities such as finite dc gain and parasitic poles. The use of a ...
Novel real-time adaptive control of multiple co-located acoustic sensors for ocean mapping and other hydrographical applications

Thurman, Edward W. (University of Limerick, 2009)

In this thesis a novel approach to the management of multiple payload sonar systems is described. The objective of this study is the design, development, and experimental verification of an automated system that facilitates ...
An objective measure of noseband tightness and Its measurement using a novel digital tightness gauge

Doherty, Orla M; Conway, Thomas; Conway, Richard; Murray, Gerard; Casey, Vincent (Public Library of Science, 2017)

Noseband tightness is difficult to assess in horses participating in equestrian sports such as dressage, show jumping and three-day-eventing. There is growing concern that nosebands are commonly tightened to such an extent ...
On scalability of particular optimisation

Piccand, Sebastien; O'Neill, Michael; Walker, Jacqueline (IEEE Computer Society, 2008)
On the correct modeling of semiconductor optical amplifier RIN and phase noise for optical phase shift keyed communication systems

Janer, Carlos L.; Connelly, Michael J. (Optical Society of America, 2010)

Phase modulation schemes are attracting much interest for use in ultra-fast optical communication systems because they are much less affected by fiber nonlinearities than conventional modulation formats. Semiconductor ...
On the effect of text messaging on student perception of instructor immediacy

Hayes, Paul (University of Limerick, 2010)

The quality of the communication between instructors and students has been shown to be one of the key factors in the quality of the learning experience of students. However, as is often the case in higher education, ...
On the security and energy consumption estimation of wireless sensor network protocols

Zhang, Fan (University of Limerick, 2012)

Along with the recent rapid development of Wireless Sensor Network (WSN) systems, the range of attacks against WSN routing protocols have grown. As a result, there is an increased need for secure WSN routing protocols. WSN ...
An optical fibre depth (pressure) sensor for remote operated vehicles in underwater applications

Duraibabu, Dinesh Babu; Poeggel, Sven; Omerdic, Edin; Capocci, Romano; Lewis, Elfed; Newe, Thomas; Leen, Gabriel; Toal, Daniel; Dooly, Gerard (MDPI, 2017)

A miniature sensor for accurate measurement of pressure (depth) with temperature compensation in the ocean environment is described. The sensor is based on an optical fibre Extrinsic Fabry-Perot interferometer (EFPI) ...
Optical fibre pressure sensors in medical applications

Poeggel, Sven; Tosi, Daniele; Duraibabu, DineshBabu; Leen, Gabriel; McGrath, Deirdre; Lewis, Elfed (MDPI, 2015)

This article is focused on reviewing the current state-of-the-art of optical fibre pressure sensors for medical applications. Optical fibres have inherent advantages due to their small size, immunity to electromagnetic ...
Optical fibre sensor for fuel cell and other fluid concentration measurement

Fabian, Matthias (University of Limerick, 2013)

This work describes the development of a fibre-optic fluid concentration sensor that is based on evanescent field absorption. In addition, a second optical sensor principle is investigated by means of the development of ...

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