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Current Search:
All of 'Electronic' and 'Engineering' in all fields;
1483 items found
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Displaying Results 101 - 125 of 1483 on page 5 of 60
Marked
Mark
On Project Oriented Problem Based Learning (POPBL) for a First Year Engineering Circuits Project
(2014)
McLoone, Seamus; Lawlor, Bob; Meehan, Andrew
On Project Oriented Problem Based Learning (POPBL) for a First Year Engineering Circuits Project
(2014)
McLoone, Seamus; Lawlor, Bob; Meehan, Andrew
Abstract:
This paper describes a pilot study on incorporating a Project-Oriented Problem Based Learning (POPBL) educational model into a first year engineering degree programme, in the form of a circuits-based project. While many variations of PBL exist, our pilot model is closely aligned to the Aalborg PBL model. This paper describes how the traditional first year Bachelor of Engineering (BE) programme at the National University of Ireland Maynooth (NUIM) was modified to accommodate the POPBL model. It outlines the key features of the approach taken and presents a detailed evaluation of the pilot study. Both staff and students responded favourably to the adopted learning style. This paper also highlights the lessons learned from the implementation of the POPBL model.
http://mural.maynoothuniversity.ie/5652/
Marked
Mark
Medical applications of Terahertz Imaging: a Review of Current Technology and Potential Applications in Biomedical Engineering
(2004)
Humphries, K.; Loughran, J.P.; Gradziel, Marcin; Lanigan, W.; Ward, Tomas E.; Murphy, J...
Medical applications of Terahertz Imaging: a Review of Current Technology and Potential Applications in Biomedical Engineering
(2004)
Humphries, K.; Loughran, J.P.; Gradziel, Marcin; Lanigan, W.; Ward, Tomas E.; Murphy, J.Anthony; O'Sullivan, Créidhe
Abstract:
Terahertz (THz) imaging is in its early stages of development but already the potential clinical impact of this new imaging modality is clear. From cancer research to DNA analysis THz technology is improving or even making possible imaging of hitherto inaccessible phenomena. In this paper we present a short review of THz imaging from the point of view of biomedical engineering. We discuss the current state of the art in terms of THz imaging systems; describe current applications, future potential and our own approaches to harnessing this novel technology. We draw attention to open problems in the area with respect to the limitations of the technology before concluding with descriptions of our future work in the area.
http://mural.maynoothuniversity.ie/1300/
Marked
Mark
Engineering automated systems for pharmaceutical manufacturing: quality, regulations and business performance
(2006)
Meagher, Diarmuid P.
Engineering automated systems for pharmaceutical manufacturing: quality, regulations and business performance
(2006)
Meagher, Diarmuid P.
Abstract:
The pharmaceutical sector is very heavily regulated Drug safety regulations form one of the pillars of this regulation. The manufacture of pharmaceuticals is carried out in an environment of onerous regulatory requirements, often from several national and international regulatory bodies. The quality systems operated by drug manufacturers and their regulatory practices have an important impact on product quality. The quality and regulatory requirements apply not only to handling of the medicinal products, but also to the physical and electronic systems used in the manufacture of those products, and extend to automated systems used to support quality assurance operations. Design, development, building and support of such systems are ultimately the responsibility of the drug manufacturer. The quality and regulatory requirements for automated systems are passed down the supply chain to suppliers. In the last two decades of the 20th century there has been a proliferation in the use of co...
http://doras.dcu.ie/18079/
Marked
Mark
Occupational Therapy and Rehabilitation Engineering-a case study
(1999)
Flynn, Susan; Ward, Tomas E.; Flynn, Gareth
Occupational Therapy and Rehabilitation Engineering-a case study
(1999)
Flynn, Susan; Ward, Tomas E.; Flynn, Gareth
Abstract:
This is a case study of the occupational therapy rehabilitation process of a teenage girl who presented in 1997 with a rare neurological condition diagnosed as rapid onset Dystonia Parkinsonism. She was helped to obtain some of the occupational performances of her choice by assistive technology devices tailored to her needs by the rehabilitation engineering department, and in this paper we wish to point out how collaboration between our departments can be of benefit to patients, and how essential microelectronic technology is in the occupational therapy environment.
http://mural.maynoothuniversity.ie/1365/
Marked
Mark
Software Engineering meets Problem-based Learning
(2003)
Delaney, J. Declan; Mitchell, George; Delaney, Sean
Software Engineering meets Problem-based Learning
(2003)
Delaney, J. Declan; Mitchell, George; Delaney, Sean
Abstract:
A problem-driven approach for teaching software engineering to undergraduate students is entering its third year at the Department of Computer Science at NUI, Maynooth.
http://mural.maynoothuniversity.ie/199/
Marked
Mark
Disentangling the neural correlates of attention decrement: from Cognitive Neuroscience to Cognitive Engineering
(2014)
Derosiere, Gerard
Disentangling the neural correlates of attention decrement: from Cognitive Neuroscience to Cognitive Engineering
(2014)
Derosiere, Gerard
Abstract:
Focused attention represents a high-level cognitive function enabling humans to selectively facilitate specific actions and perceptions. In a world full of choices of action, and of perceptual possibilities, focused attention appears to be a vital component of human cognition. One observation however, is worth making: human-beings are unable to maintain stable states of focused attention indefinitely. This inability manifests during sustained attention tasks with the progressive occurrence of sensory-motor deficiencies with time-on-task. The phenomenon - called attention decrement - is characterized by increases in motor impulsivity and in response times to imperative events, and by a reduction in perceptual sensitivity. So far, the neural underpinnings of attention decrement have not been fully elucidated and this lack of knowledge is clearly palpable within two disciplinary fields: Cognitive Neuroscience and Cognitive Engineering. In Cognitive Neuroscience, the associated question...
http://mural.maynoothuniversity.ie/5805/
Marked
Mark
Network Latency in On-Line Gaming: An Engineering or a Psychological Problem?
(2006)
Linehan, Conor; Roche, Bryan; McLoone, Seamus; Ward, Tomas E.
Network Latency in On-Line Gaming: An Engineering or a Psychological Problem?
(2006)
Linehan, Conor; Roche, Bryan; McLoone, Seamus; Ward, Tomas E.
Abstract:
Ongoing research attempts to find engineering-based solutions to the problem of network latency in multiplayer computer games. However, few studies have been conducted to examine the end-users' experience of latency from a psychological perspective. The current study examines the roles of network latency and game complexity on the subjective experience of participants playing a specially designed computer game. Results suggest that participants prefer complex over simple games, regardless of the level of latency experienced. These findings suggest the possibility of a psychological solution to some of the negative effects of network latency. It is suggested that by manipulating Relational Complexity, it may be possible to maintain a satisfactory gaming experience in the presence of latency.
http://mural.maynoothuniversity.ie/1284/
Marked
Mark
CMOS power estimation
(2003)
Comiskey, Paul
CMOS power estimation
(2003)
Comiskey, Paul
Abstract:
THESIS 7351
The last decade has seen the inclusion of power consumption criteria in the list of design goals targeted by silicon designers and architects. Together with speed and area, low power is now a common part of a system specification. In tandem with this new technical challenge, market forces have driven electronic product development increasingly in the direction of portability. This consideration, in conjunction with a growing awareness of the environmental impact of increasing global energy consumption, has led to a substantial body of research devoted to minimising the energy consumption of electronic systems. This is a relatively new field of research within which there are many unexplored challenges, none more so than in the area of prediction of the likely operational power dissipation of the system. Such techniques must be capable of producing efficient, accurate estimates in the shortest possible time. It is the objective of this thesis to explore the problem of...
http://hdl.handle.net/2262/86813
Marked
Mark
Investigating the temporal dynamics of auditory processing and selective attention using continous and ecologically valid stimuli : a neural engineering approach
(2011)
Power, Alan James
Investigating the temporal dynamics of auditory processing and selective attention using continous and ecologically valid stimuli : a neural engineering approach
(2011)
Power, Alan James
Abstract:
THESIS 9560
Auditory Evoked Potentials (AEPs) are a measure of the neural activity in response to auditory stimulation and are used in many clinical and research applications. They are obtained from the electroencephalogram (EEG) by the repeated presentation of discrete auditory stimuli such as tones or noise bursts lasting from Sms to 60ms. EEG activity measured in responses to each individual stimulus is averaged in order to eliminate neural activity not time-locked to the auditory events. The remaining activity is known as an AEP.
http://hdl.handle.net/2262/90542
Marked
Mark
Bridging the Gap Between Engineering Workforce Needs and Student Engagement
(2015)
Goold, Eileen
Bridging the Gap Between Engineering Workforce Needs and Student Engagement
(2015)
Goold, Eileen
Abstract:
This paper is inspired by the development of the proposed new technological university in Dublin; TU4Dublin is to become “Dublin’s Globally Engaged University” and is to be located at the nexus between learning and engagement (TU4Dublin, 2015). This study investigates engineering education in the context of career focused education. The main objective of this study is to investigate whether engineering students’ cognitive engagement benefits from bridging the gap between technical issues and the practical realities of modern engineering practice. A portfolio of engineering practice illustrating the practical realities of modern engineering practice in the context of Engineers Ireland’s competencies is developed and presented to first year electronic engineering students at the Institute of Technology Tallaght Dublin (ITTD). A mixed methods approach is used to evaluate the impact of the portfolio usage on first year electronic engineering students’ learning engagement. The results sh...
https://arrow.dit.ie/st2/4
Marked
Mark
Perceptually motivated audio time-frequency analysis
(2001)
O'Donovan, Jonathan
Perceptually motivated audio time-frequency analysis
(2001)
O'Donovan, Jonathan
Abstract:
THESIS 6482
Fourier analysis has long been an indispensable tool for the investigation of signals whose frequency content does not change with time. It has likewise been of fundamental importance in engineering for the study of linear time-invariant systems. Clearly, however, most natural and man-made signals do have a time-varying frequency content. Fourier analysis is unfortunately inadequate for the analysis of such signals, as it cannot tell us how the signal?s frequency content changes with time-it can determine which frequency components are present in the signal, but not when they occur. In order to overcome the limitations of Fourier analysis, therefore, a join t time-frequency signal description is required.
http://hdl.handle.net/2262/89018
Marked
Mark
Content-based analysis of video through sparse features
(2010)
Ring, Dan
Content-based analysis of video through sparse features
(2010)
Ring, Dan
Abstract:
THESIS 9333
http://hdl.handle.net/2262/77070
Marked
Mark
Motion estimation reliability and the restoration of degraded archived film
(2008)
Corrigan, David
Motion estimation reliability and the restoration of degraded archived film
(2008)
Corrigan, David
Abstract:
THESIS 8352
http://hdl.handle.net/2262/77018
Marked
Mark
Statistical signal processing techniques for visual post-production
(2007)
Piti?, Fran?ois
Statistical signal processing techniques for visual post-production
(2007)
Piti?, Fran?ois
Abstract:
THESIS 8261
http://hdl.handle.net/2262/77065
Marked
Mark
Quasiprobability density diffusion equations for the quantum Brownian motion in a potential
(2007)
Mulligan, Bernard Patrick James
Quasiprobability density diffusion equations for the quantum Brownian motion in a potential
(2007)
Mulligan, Bernard Patrick James
Abstract:
THESIS 8416
Wigner's [E. P. Wigner, Phys. Rev., 1932, 40, 749] representation of the density operator as a c-number quasiprobablity distribution in phase space allowing quantum mechanical averages involving the density matrix to be calculated as phase space averages just as classical averages originally used by him to obtain quantum mechanical corrections to classical thermodynamic equilibrium i.e. to the Maxwell-Boltzmann distribution so applying to closed quantum systems is extended to open quantum systems comprising a canonical ensemble of Brownian particles in a potential. This is accomplished via an idea of Gross and Lebowitz [E. P. Gross and J. L. Lebowitz, Phys. Rev. 1956, 104, 1528]. They suggested that using Wigner's representation the connection between classical and quantum collision kernels, (i.e. in classical mechanics the Stosszahlanzatz describing the bath-particle interaction in the open system in the Boltzmann equation for the single particle distribut...
http://hdl.handle.net/2262/77582
Marked
Mark
Effect of electric field on the polarised infrared spectra of smectic liquid crystals
(2000)
Jamshidi, Mohammad Mehdi
Effect of electric field on the polarised infrared spectra of smectic liquid crystals
(2000)
Jamshidi, Mohammad Mehdi
Abstract:
THESIS 5880
In this research Fourier Transform Infrared Spectroscopy has been used to investigate the effect of the polarised infrared beam and the electric field on the orientational behaviour of the ferroelectric and antiferroelectric liquid crystals. For this, infrared spectra are measured as a function of the polariser angle as the bias voltage to liquid crystal cells was altered.
http://hdl.handle.net/2262/88893
Marked
Mark
Fabrication of ultra-shallow boron junctions using proximity rapid thermal diffusion
(2000)
Nolan, Martina
Fabrication of ultra-shallow boron junctions using proximity rapid thermal diffusion
(2000)
Nolan, Martina
Abstract:
THESIS 5730
This work presents proximity rapid thermal diffusion (RTD) as a technique for fabricating shallow p-type junctions for LDD devices. Boron-doped spin-on dopant (SOD) is used as a dopant source in proximity RTD. Fourier transform infrared (FTIR) spectroscopy and spectroscopic ellipsometry are initially used to analyse and optimise the SOD dopant source. Bare and oxidised silicon wafers are doped using the optimised SOD dopant source. The boron junctions are analysed using SIMS and the four-point probe technique. Boron diffusion coefficients are evaluated from the SIMS profiles using Boltzmann-Matano analysis. Proximity RTD is used to fabricate p-n junction diodes. The diodes exhibit excellent current-voltage (IV) characteristics, with near ideal forward characteristics, low leakage currents and sharp avalanche breakdown voltages. Micro-Raman spectroscopy (MRS), synchrotron X-ray topography (SXRT) and optical microscopy are used to determine the thermal stress and the b...
http://hdl.handle.net/2262/88994
Marked
Mark
A generalized method for quantification of cognitive radio benefits within wireless systems
(2009)
Marshall, Preston Fairfax
A generalized method for quantification of cognitive radio benefits within wireless systems
(2009)
Marshall, Preston Fairfax
Abstract:
THESIS 9383
For most of the history of wireless communications, the primary enabler of enhanced radio communications capability and utility has been continual improvement in the implementing technology and the corresponding ability to exploit a wider range of frequencies, provide complex signaling, and perform coding and error correction.
http://hdl.handle.net/2262/90326
Marked
Mark
Impacts of electronic process guides by types of user: An experimental study
(2016)
Mora, Manuel; O'Connor, Rory; Raisinghani, Mahesh; Gelman, Ovsei
Impacts of electronic process guides by types of user: An experimental study
(2016)
Mora, Manuel; O'Connor, Rory; Raisinghani, Mahesh; Gelman, Ovsei
Abstract:
The design and utilization of Electronic Process Guides (EPGs) have been studied in Software Engineering (SwE) since the 1990s. However, the empirical findings from surveys, case studies, and experiments on the beneficial effects of their utilization are still lacking. Thus, we suggest that further research on the utilization of EPGs is required. In this study, we are interested in gaining insights on the effects of using EPGs on objective metrics (learning score, time effort) and subjective metrics (perceived usefulness, ease of use, and value), by comparing three EPG designs (a simple PDF-based EPG, a normal HTML-based EPG, and a sophisticated Java-based EPG) with different blocks of experimental subjects (practitioners, academicians, novices, and experts). To this end, we have conducted a controlled experiment with a sample of international participants in the domain of IT Service Management. We found that the utilization of EPGs improves the objective metrics while no improvemen...
http://doras.dcu.ie/20999/
Marked
Mark
Development of a prototype photoacoustic microscope and spectroscope and advanced semiconductor material characterization
(2012)
Xu, Lu
Development of a prototype photoacoustic microscope and spectroscope and advanced semiconductor material characterization
(2012)
Xu, Lu
Abstract:
The thesis can be divided into two parts. In the first part of my thesis, I present the design, construction and test results of a prototype gas-cell Photoacoustic (PA) Spectrometer and Microscope. It is a low cost, non-contact technique, which can be used to characterize semiconductor band-gap structures and subsurface defects. It requires no liquid coupling and no sample surface preparation in advance. The instrument development includes the optical system design, mechanical design of the PA cell using AutoCAD®, pre-amplifier circuit design, system noise analysis, hardware control, data acquisition system and graphical user interface (GUI) development using LabView®. A multiple-microphone detection scheme, helium gas coupling, acoustic resonance and a high power laser light source are used to enhance the PA signal and to increase the data acquisition speed. The PA system is calibrated to remove the acoustic resonance effect and the background fingerprint of light source ...
http://doras.dcu.ie/17150/
Marked
Mark
Development and evaluation of an RF Vector Network Analyser experiment for an undergraduate engineering programme
(2019)
McCarthy, Kevin G.; McAuliffe, Tadhg D.; Ó'Ciaráin, Ruairí; Murphy, Colin C.
Development and evaluation of an RF Vector Network Analyser experiment for an undergraduate engineering programme
(2019)
McCarthy, Kevin G.; McAuliffe, Tadhg D.; Ó'Ciaráin, Ruairí; Murphy, Colin C.
Abstract:
This paper outlines the development of an RF Vector Network Analyser (VNA) laboratory for undergraduate electronic engineering students. Because of the expense of high-quality high-frequency vector network analyser systems, these are usually only encountered by a small number of students who undertake a senior-year project in the RF/microwave area. This paper describes a VNA-based laboratory which is intended to be used by all undergraduate Electrical and Electronic Engineering students in the 4th year of the programme, thus giving all students an insight into this sometimes “mysterious” area of the undergraduate curriculum. The paper moves from the initial “wish list” for what the laboratory might incorporate to the final roll-out to a cohort of 23 students. Feedback from the students indicate that the laboratory session was well received while also indicating that there is potential for improvement in some areas.
http://hdl.handle.net/10468/9470
Marked
Mark
Applying a MDE approach to a healthcare environment: A case study of an AE dept
(2017)
Gannud, Hussein; Wu, Hao; Timoney, Joseph
Applying a MDE approach to a healthcare environment: A case study of an AE dept
(2017)
Gannud, Hussein; Wu, Hao; Timoney, Joseph
Abstract:
One of the main challenges of Healthcare services is to find a suitable way of managing limited resources within a highly demanding environment. This challenge can now be tackled by deploying reliable software systems that are supported by Software Engineering practices. In this paper, we present a Model Driven Engineering (MDE) approach that, by way of an example, is applied to an Accident and Emergency (AE) department. This approach works by designing a UML class diagram annotated with a set of OCL constraints. These constraints formally express restrictions on interactions between various elements of the system. We formally evaluate our model by using a logic solver. This approach lays the foundation of our intentions to further develop a more complete health care system. We report the valuable lessons learnt from the work and explain the limitation we observed.
http://mural.maynoothuniversity.ie/11975/
Marked
Mark
A method for modelling radio frequency deposition or etch plasma chambers using an equivalent electronic component circuit
(2004)
Cregan, Brian
A method for modelling radio frequency deposition or etch plasma chambers using an equivalent electronic component circuit
(2004)
Cregan, Brian
Abstract:
Extensive work continues to be carried out on correlating the electric characteristics of parallel-plate discharges with an equivalent model. Theoretical models have been developed for capacitive radio frequency driven plasmas. Voltage, current and phase measurements of radio frequency discharges have been used to gain empirical data of a wide range of discharge parameters. It has been found that parasitic impedances within a plasma chamber have a substantial effect on impedance measurements of plasmas. This means that simple a priori models are inadequate for understanding plasmas. Complicated experimental setups have been used to better understand the propagation of radio frequency electromagnetic radiation through plasmas/plasma chambers. These however can not be transferred to a manufacturing environment due to non uniformity issues across a given wafer. The effect of the plasma chamber setup on plasma characteristics has been demonstrated. Although plasma processes are widely ...
http://doras.dcu.ie/17241/
Marked
Mark
On electronic process guides for IT service management
(2010)
Mora, Manuel; O'Connor, Rory; Gelman, Ovsei
On electronic process guides for IT service management
(2010)
Mora, Manuel; O'Connor, Rory; Gelman, Ovsei
Abstract:
IT practitioners interested in implementing IT Service Management processes (like ISO/IEC 20000; CMMI-SVC, ITIL v2, or ITIL v3, or proprietary process models as ITUP (IBM), MOF 3.0/4.0 (Microsoft) are faced with the challenge to consult complex documents for learning and training purposes.. Such documents contain an inherent complexity by the number of schemes, categories, activities, roles, forms, techniques, concepts, attributes, and their interrelationships. Given this problem, a research stream (in Software Engineering discipline) has been focused on the design, implementation and evaluation of electronic process guides (EPGs). EPGs are digital documents which describe organizational processes for training and guiding real execution purposes, and which contains all required documents as well as sample of them. EPGs are not intended for enacting an organizational process (like a business process manager system) but for supporting their correct execution for human participants. We...
http://doras.dcu.ie/18656/
Marked
Mark
Electronic slide matching and enhancement of a lecture video
(2007)
KOKARAM, ANIL CHRISTOPHER; PITIE, FRANCOIS
Electronic slide matching and enhancement of a lecture video
(2007)
KOKARAM, ANIL CHRISTOPHER; PITIE, FRANCOIS
Abstract:
This paper presents an automatic method to enhance video presentations for distance learning applications. From a material recorded by a fixed, non professional camera, the system matches the slides displayed during the presentation with their electronic versions. The process to achieve slide recognition consists of two phases. In the first phase, the location where the slides are displayed is located by colour matching. Then a shot detection is performed in the display area and a frame is selected for each slide displayed in the video. The second phase consists of matching the frames previously selected to the electronic version of the slides. Using correlation measure, a likelihood is computed for each electronic slide to correspond to the slides displayed in the frames selected. A prior distribution is then defined to model the probability of each possible slide transition. Finally the most probable sequence of slides displayed in the video is determined using the Viterbi algorit...
http://hdl.handle.net/2262/24577
Displaying Results 101 - 125 of 1483 on page 5 of 60
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