Institutions
|
About Us
|
Help
|
Gaeilge
0
1000
Home
Browse
Advanced Search
Search History
Marked List
Statistics
A
A
A
Show search options
Hide search options
Search using:
All
Any
None of these
Exact Phrase
in
Keyword (All Fields)
Title
Author
Subject
Institution
Funder
All
Any
None of these
Exact Phrase
in
Keyword (All Fields)
Title
Author
Subject
Institution
Funder
All
Any
None of these
Exact Phrase
in
Keyword (All Fields)
Title
Author
Subject
Institution
Funder
From
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
1959
1958
1957
1956
1955
1954
1953
1952
1951
1950
1949
1948
1947
1946
1944
1943
1942
1941
1940
1939
1938
1937
1936
1935
1934
1933
1932
1931
1930
1929
1928
1927
1925
1923
1920
1919
1917
1915
1914
1913
1912
1911
1909
1908
1907
1906
1905
1904
1903
1902
1901
1900
1899
1898
1897
1896
1895
1894
1893
1892
1891
1890
1889
1888
1887
1886
1885
1884
1883
1882
1881
1880
1879
1878
1877
1876
1875
1874
1873
1872
1871
1870
1869
1867
1866
1865
1864
1862
1861
1859
1858
1857
1856
1855
1854
1853
1852
1851
1849
To
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
1959
1958
1957
1956
1955
1954
1953
1952
1951
1950
1949
1948
1947
1946
1944
1943
1942
1941
1940
1939
1938
1937
1936
1935
1934
1933
1932
1931
1930
1929
1928
1927
1925
1923
1920
1919
1917
1915
1914
1913
1912
1911
1909
1908
1907
1906
1905
1904
1903
1902
1901
1900
1899
1898
1897
1896
1895
1894
1893
1892
1891
1890
1889
1888
1887
1886
1885
1884
1883
1882
1881
1880
1879
1878
1877
1876
1875
1874
1873
1872
1871
1870
1869
1867
1866
1865
1864
1862
1861
1859
1858
1857
1856
1855
1854
1853
1852
1851
1849
Optionally, filter by:
(Leave unchecked to search all fields)
Item Type
Book
Book chapter
Conference item
Contribution to newspaper/magazine
Doctoral thesis
Journal article
Master thesis (research)
Master thesis (taught)
Multimedia
Patent
Report
Review
Working paper
Other
Peer Review Status
Peer reviewed
Non peer reviewed
Unknown
Institution
Dublin City University
Dublin Institute of Technology
NUI Galway
NUI Maynooth
Trinity College Dublin
University College Cork
University College Dublin
University of Limerick
Funder
Enterprise Ireland (EI)
Environmental Protection Agency (EPA)
Health Research Board (HRB)
Higher Education Authority (HEA)
Irish Aid
Irish Research Council for Humanities and Social Sciences (IRCHSS)
Irish Research Council for Science Engineering and Technology (IRCSET)
Marine Institute
Science Foundation Ireland (SFI)
Teagasc
Language
Irish
English
Danish
French
German
Interlingue; Occidental
Italian
Japanese
Spanish; Castilian
Current Search:
All of 'Electronic' and 'Engineering' in all fields;
908 items found
Sort by
Relevance
Title
Author
Item type
Date
Institution
Peer review status
Language
Order
Ascending
Descending
25
50
100
per page
1
2
3
4
5
6
7
8
9
10
Bibtex
CSV
EndNote
RefWorks
RIS
XML
Displaying Results 1 - 25 of 908 on page 1 of 37
Marked
Mark
On highly oscillatory problems arising in electronic engineering
(2009)
Condon, Marissa; Deaño, Alfredo; Iserles, Arieh
On highly oscillatory problems arising in electronic engineering
(2009)
Condon, Marissa; Deaño, Alfredo; Iserles, Arieh
Abstract:
In this paper, we consider linear ordinary differential equations originating in electronic engineering, which exhibit exceedingly rapid oscillation. Moreover, the oscillation model is completely different from the familiar framework of asymptotic analysis of highly oscillatory integrals. Using a Bessel-function identity, we expand the oscillator into asymptotic series, and this allows us to extend Filon-type approach to this setting. The outcome is a time-stepping method that guarantees high accuracy regardless of the rate of oscillation.
http://doras.dcu.ie/4698/
Marked
Mark
Forecasting Requirements in the Optimal Control of Wave Energy Converters.
(2009)
Fusco, Francesco
Forecasting Requirements in the Optimal Control of Wave Energy Converters.
(2009)
Fusco, Francesco
Abstract:
Research Report: EE/2009/2/JVR
http://eprints.nuim.ie/1718/
Marked
Mark
Electronic Speckle Pattern Shearing Interferometry for Nondestructive Testing of Thermal Sprayed Alloy Coatings
(2005)
Xue, Qiang
Electronic Speckle Pattern Shearing Interferometry for Nondestructive Testing of Thermal Sprayed Alloy Coatings
(2005)
Xue, Qiang
Abstract:
<p>Thermal sprayed coatings have wide engineering applications. There now exists a wide range of destructive and nondestructive testing (NDT) methods for surface coating inspections. This paper describes an application of electronic speckle pattern shearing Interferometry (ESPI) for NDT of thermal sprayed surface coatings. In contrast to other conventional methods such as eddy current,ultrasonic or X-ray, ESPSI allows fast and large survey area inspection. Experimental results of shearographic measurements are presented. Thermal sprayed coatings were tested using ESPI. Delaminations of the coatings were detected and the fringe patterns were captured using this method. It is shown that the shearography technique can be applied successfully to surface coating qualitiy inspection and is very effective for delamination detection.</p>
http://arrow.dit.ie/engschmeccon/9
Marked
Mark
Electronic Tunability of Ferroelectric Liquid Crystal Infiltrated Photonic Crystal Fibre
(2009)
Mathews, Sunish; Semenova, Yuliya; Farrell, Gerald
Electronic Tunability of Ferroelectric Liquid Crystal Infiltrated Photonic Crystal Fibre
(2009)
Mathews, Sunish; Semenova, Yuliya; Farrell, Gerald
Abstract:
The electronic tunability of ferroelectric liquid crystal filled photonic crystal fibres is demonstrated for the first time. The tunability is obtained in the wavelength range of 1500 -1600 nm, with a free spectral range of ~ 20 nm. The electronic tunability is achieved by applying an electric field onto the infiltrated photonic crystal fibre which facilitates the photonic bandgap tuning owing to the microsecond order switching speeds of Ferroelectric Liquid crystals. The polarized transmission spectrum shows the behavior of a tunable notch filter with a change in applied voltage. The results obtained could pave the way for the fabrication of fast tunable all-in-fibre devices in the telecom wavelength range.
http://arrow.dit.ie/engscheceart/73
Marked
Mark
An FPGA-based stereoscopic camera - electronic design tools and techniques
(2010)
Andorko, Istvan; Corcoran, Peter M.; Bigioi, Petronel
An FPGA-based stereoscopic camera - electronic design tools and techniques
(2010)
Andorko, Istvan; Corcoran, Peter M.; Bigioi, Petronel
Abstract:
Electronic design tools and techniques for the implementation of a stereoscopic camera based on an FPGA (Field Programmable Gate Array) are presented. The stages of an IPP (Image Processing Pipeline) are presented together with the development tools and languages used to implement a stereoscopic camera in hardware. In a further development of the basic system, aspects of the implementation of a 3D camera are presented.
http://hdl.handle.net/10379/1438
Marked
Mark
The Human Eye Position Control System in a Rehabilitation Setting
(2005)
Nolan, Yvonne; Burke, Ted; Boylan, C.; De Paor, Annraoi
The Human Eye Position Control System in a Rehabilitation Setting
(2005)
Nolan, Yvonne; Burke, Ted; Boylan, C.; De Paor, Annraoi
Abstract:
<p>Our work at Ireland’s National Rehabilitation Hospital involves designing communication systems for people suffering from profound physical disabilities. One such system uses the electro-oculogram, which is an (x,y) system of voltages picked up by pairs of electrodes placed, respectively, above and below and on either side of the eyes. The eyeball has a dc polarisation between cornea and back, arising from the photoreceptor rods and cones in the retina. As the eye rotates, the varying voltages projected onto the electrodes drive a cursor over a mimic keyboard on a computer screen. Symbols are selected with a switching action derived, for example, from a blink. Experience in using this mode of communication has given us limited facilities to study the eye position control system. We present here a resulting new feedback model for rotation in either the vertical or the horizontal plane, which involves the eyeball controlled by an agonist-antagonist muscle pair, modelled by a ...
http://arrow.dit.ie/teapotart/4
Marked
Mark
On numerical methods for highly oscillatory problems in circuit simulation
(2009)
Condon, Marissa; Deaño, Alfredo; Iserles, Arieh; Maczynski, Kornel; Xu, Tao
On numerical methods for highly oscillatory problems in circuit simulation
(2009)
Condon, Marissa; Deaño, Alfredo; Iserles, Arieh; Maczynski, Kornel; Xu, Tao
Abstract:
We propose in this paper a novel technique for an efficient numerical approximation of systems of highly oscillatory ordinary differential equations. In particular, we consider electronic systems subject to modulated signals. A Filon-type method is proposed for use and compared with traditional trapezoidal rule and Runge–Kutta methods. The Filontype method is combined with the waveform relaxation technique for nonlinear systems. Preliminary numerical examples highlight the efficacy of this approach.
http://doras.dcu.ie/15245/
Marked
Mark
Novel ultra-violet/blue optoelectronic materials and devices based on copper halides (CuHa)
(2012)
Cowley, Aidan James
Novel ultra-violet/blue optoelectronic materials and devices based on copper halides (CuHa)
(2012)
Cowley, Aidan James
Abstract:
Considerable research is being carried out in the area of wide band gap semiconductor materials for light emission applications in the UV/Blue (300-400 nm) spectral range. This project explores the novel use of the Copper Halides (CuHa), specifically γ-CuCl and γ-CuBr, I–VII wide band gap mixed ionic–electronic semiconducting materials with light emitting properties suitable for novel UV/blue light applications. This project details novel research carried out towards achieving single crystal growth of γ-CuCl from solution via Liquid Phase Epitaxy (LPE) based techniques. LPE growth runs are undertaken using an alkali halide flux compound (KCl) to depress the liquidus temperature of CuCl below its solid phase wurtzite-zincblende (β → γ) transition temperature for solution based epitaxy on lattice matched Si substrates (lattice constant of γ-CuCl (0.541 nm) is closely matched to that of Si (0.543 nm). Results show that the resulting KCl flux-driven deposition of CuCl onto the Si subs...
http://doras.dcu.ie/16696/
Marked
Mark
Energy Efficient Hardware Accelerators for Packet Classification and String Matching
(2010)
Kennedy, Alan
Energy Efficient Hardware Accelerators for Packet Classification and String Matching
(2010)
Kennedy, Alan
Abstract:
This thesis focuses on the design of new algorithms and energy efficient high throughput hardware accelerators that implement packet classification and fixed string matching. These computationally heavy and memory intensive tasks are used by networking equipment to inspect all packets at wire speed. The constant growth in Internet usage has made them increasingly difficult to implement at core network line speeds. Packet classification is used to sort packets into different flows by comparing their headers to a list of rules. A flow is used to decide a packet’s priority and the manner in which it is processed. Fixed string matching is used to inspect a packet’s payload to check if it contains any strings associated with known viruses, attacks or other harmful activities. The contributions of this thesis towards the area of packet classification are hardware accelerators that allow packet classification to be implemented at core network line speeds when classifying packets using rule...
http://doras.dcu.ie/15717/
Marked
Mark
PBL Applied to Software Engineering Group Projects
(2002)
Delaney, Declan; Mitchell, George G.
PBL Applied to Software Engineering Group Projects
(2002)
Delaney, Declan; Mitchell, George G.
Abstract:
This paper describes the application of Problem-based learning (PBL) to the design and implementation of an E-commerce web site by small groups of software engineering students. This work is part of a real-world software engineering course, taught to pre-internship students. The use of PBL has gained significant interest since its inception in the late 1950's, and its later adaptation to small team-based learning in the early 1960s. By combining the PBL paradigm along with the experience of teaching a 'traditional' software engineering course, and by analyzing feedback from industry, a course, which we believe provides students with new insights into real-world software engineering projects, has been developed. Initially students were formed into teams of 4 or 5 members based on the weak-strong selection technique. The course began with team-building activities, after which the E-commerce project proposal was presented to the teams. The teams were given com...
http://eprints.nuim.ie/89/
Marked
Mark
A project based approach to learning for first year engineering students
(2008)
Corcoran, Brian; Whelan, John
A project based approach to learning for first year engineering students
(2008)
Corcoran, Brian; Whelan, John
Abstract:
Support for transition from Leaving Certificate and entry to college for 1st year engineering students can be difficult to achieve. This new course offers an innovative project based approach to learning for 1st years with an introduction to design to build confidence in student ability and give motivation in research and discovery skills. The project takes place in small groups and relies heavily on presentation, group and individual skills. The Mechanical and Manufacturing and the Electronic Engineering Schools at Dublin City University offered this new module for all first year Engineering Students in 2006. The course entitled, ‘Project and Laboratory Skills’ was an immediate success with increased participation and retention rates and a high level of academic success in assessment. This paper highlights the overall module concepts, teaching and learning outcomes and the resources required for such a module.
http://doras.dcu.ie/694/
Marked
Mark
Remote access to continuing engineering education - RACeE
(1997)
Whelan, Paul F.
Remote access to continuing engineering education - RACeE
(1997)
Whelan, Paul F.
Abstract:
This paper discusses the issues involved with the development and implementation of an on-line postgraduate course for remote-access students. This is especially relevant for students who wish to pursue postgraduate qualifications, or to update their skill base, while continuing with their career. Although remote-access education would not be considered by the author as the delivery method of choice for the majority of an engineering student's educational needs, there will always be niche educational demands that can be addressed by such an approach. Although the electronic presentation of course notes via the Internet is becoming more commonplace, the ideas outlined in this paper go beyond this basic concept. The emphasis of any remote-access-based educational strategy has to be on the interaction between the tutor and the students, and not on note presentation.
http://doras.dcu.ie/2451/
Marked
Mark
MyVLE: An Engineering-centric e-learning Platform
(2006)
Monaghan, Karl; Villing, Rudi; Ward, Tomas
MyVLE: An Engineering-centric e-learning Platform
(2006)
Monaghan, Karl; Villing, Rudi; Ward, Tomas
Abstract:
This paper reports on certain key aspects of the design, building and testing of MyVLE, an internet-based e-learning system that is used at NUI Maynooth for the delivery of a remote program in engineering education. The system was designed from first principles with strong support for numerical disciplines integrated at the outset. The paper will describe in some detail the most novel components of the software viz. the engineering science focused interactive quiz feature and the results management component. Further we describe the background to such learning environments, the rationale behind our decision to custom-build a solution as well as drawing focus to the field of distance learning in engineering education in Ireland. This work should be of interest to researchers in distance learning in engineering and the sciences as a consequence of the finished system’s modest build cost, numerical discipline support, scalable architecture, pedagogical flexibility and recorded impact.
http://eprints.nuim.ie/1350/
Marked
Mark
Teaching engineering design through Lego Mindstorms
(2005)
Ringwood, John; Monaghan, Karl; Maloco, John
Teaching engineering design through Lego Mindstorms
(2005)
Ringwood, John; Monaghan, Karl; Maloco, John
Abstract:
This paper examines a particular methodology of teaching engineering design to undergraduate engineering students, which relies on Lego® Mindstormsâ¢. A number of important issues are addressed, including the timing of the design module within the programme, prior knowledge required and assessment components. The module, which has been running for three years, was found to have many positive attributes, not only in relation to the core design activity, but also in generating good team-building and engaging students with the degree programme.
http://eprints.nuim.ie/1016/
Marked
Mark
Does a Link Exist Between Examination Performance and Lecture Attendance for First Year Engineering Students ?
(2011)
O'Dwyer, Aidan
Does a Link Exist Between Examination Performance and Lecture Attendance for First Year Engineering Students ?
(2011)
O'Dwyer, Aidan
Abstract:
<p>The objective of this study is to examine if a link exists between lecture attendance and examination performance of Level 7, Year 1, Electrical Engineering students at Dublin Institute of Technology in the Electrical Systems subject. Lecture attendance was monitored and analysed over four academic years (2007-8, 2008-9, 2009-10 and 2010-11). The average lecture attendance for students in the three academic years from 2007-10 was 55%, increasing noticeably in the 2009-10 academic year. A statistically significant weakly positive correlation between lecture attendance and examination performance was established. Each 10% increase in student attendance at lectures improved both Module 1 examination and terminal examination performance by approximately 3% on average, a finding similar to that reported in other studies.</p>
http://arrow.dit.ie/engscheleart/166
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, M.; Lanigan, W.; Ward, T.; Murphy, J.A.; O...
Medical applications of Terahertz Imaging: a Review of Current Technology and Potential Applications in Biomedical Engineering
(2004)
Humphries, K.; Loughran, J.P.; Gradziel, M.; Lanigan, W.; Ward, T.; Murphy, J.A.; O'Sullivan, C.
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://eprints.nuim.ie/1300/
Marked
Mark
Occupational Therapy and Rehabilitation Engineering-a case study
(1999)
Flynn, Susan; Ward, Tomas; Flynn, Gareth
Occupational Therapy and Rehabilitation Engineering-a case study
(1999)
Flynn, Susan; Ward, Tomas; 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://eprints.nuim.ie/1365/
Marked
Mark
Network Latency in On-Line Gaming: An Engineering or a Psychological Problem?
(2006)
Linehan, Conor; Roche, Bryan; McLoone, Seamus; Ward, Tomas
Network Latency in On-Line Gaming: An Engineering or a Psychological Problem?
(2006)
Linehan, Conor; Roche, Bryan; McLoone, Seamus; Ward, Tomas
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://eprints.nuim.ie/1284/
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://eprints.nuim.ie/199/
Marked
Mark
Mechancial Characterization of Unplasticised Polyvinylchloride Thick Pipes Using Electronic Speckle Pattern Interferometry
(2004)
Mihaylova, Emilia; Potelon, Benjamin; Reddy, Shridhar; Toal, Vincent; Smith, Ciaran
Mechancial Characterization of Unplasticised Polyvinylchloride Thick Pipes Using Electronic Speckle Pattern Interferometry
(2004)
Mihaylova, Emilia; Potelon, Benjamin; Reddy, Shridhar; Toal, Vincent; Smith, Ciaran
Abstract:
<p>In this work a number of techniques (electronic speckle pattern interferometry, holographic interferometry, strain gauge and finite element method) are brought to bear in order to establish consistency in the results of strain measurement. This is necessary if optical nondestructive testing methods, such as those used here, are to gain acceptance for routine industrial use. The FE model provides a useful check. Furthermore, ESPI fringe data facilitates the extension of FE models, an approach that is of growing importance in component testing. The use of in-plane and out-of-plane sensitive electronic speckle pattern interferometry (ESPI) for non-destructive material characterization of thick unplasticised polyvinylchloride (uPVC) pipes is presented. A test rig has been designed for stressing pipes by internal pressure. ESPI gives a complete mapping of the displacement field over the area imaged by the video camera. The results for the strain of uPVC obtained from ESPI data a...
http://arrow.dit.ie/cieoart/68
Marked
Mark
Attitudes of Health Professionals to Electronic Data Sharing within an Integrated Care Electronic Health Record (ICEHR)
(2011)
O'Malley, Charyl; Berry, Damon; Sharp, Mary
Attitudes of Health Professionals to Electronic Data Sharing within an Integrated Care Electronic Health Record (ICEHR)
(2011)
O'Malley, Charyl; Berry, Damon; Sharp, Mary
Abstract:
It is estimated that 98,000 people die in hospitals yearly in the USA as a result of medical errors (Agency for Healthcare Research and Quality, 2009). Electronic Health Records (EHR) can offer improved patient safety. EHRs are being implemented by many countries, however, not all health professionals have welcomed them (MORI Social Research Institute, 2006). As outlined in the National Health Information Strategy (NHIS) document, Ireland has plans to introduce an EHR. Attitudes of health professionals are a significant factor for the successful implementation and adoption of a new clinical information system. This study aimed to gauge the attitude of health professionals in Ireland to electronic data sharing within an integrated care electronic health record (ICEHR). A questionnaire identified attitudes of health professionals in Ireland to EHRs. This resulted in the majority supporting the introduction of an ICEHR system and indicating patient care and safety as the reasons for th...
http://arrow.dit.ie/teapotcon/23
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
Marked
Mark
Harnessing brain power at NUI Maynooth
(2005)
Ward, T.; McLoone, S.; Coyle, S
Harnessing brain power at NUI Maynooth
(2005)
Ward, T.; McLoone, S.; Coyle, S
Abstract:
The Department of Electronic Engineering at NUI Maynooth is involved in exciting interdisciplinary work in the biomedical, digital signal processing, control and electronic systems areas. Here Tomas Ward, Seán McLoone and Shirley Coyle highlight three specific projects.
http://eprints.nuim.ie/1433/
Marked
Mark
Photopolymer Diffractive Optical Elements in Electronic Speckle Pattern Shearing Interferometry
(2006)
Mihaylova, Emilia; Naydenova, Izabela; Duignan, Barry; Martin, Suzanne; Toal, Vincent
Photopolymer Diffractive Optical Elements in Electronic Speckle Pattern Shearing Interferometry
(2006)
Mihaylova, Emilia; Naydenova, Izabela; Duignan, Barry; Martin, Suzanne; Toal, Vincent
Abstract:
<p>In this paper we present an electronic speckle pattern shearing interferometer using a photopolymer diffractive optical element in the form of a holographic grating, in combination with a ground glass to shear the images. The sheared images on the ground glass are further imaged onto a CCD camera. The distance between the grating and the ground glass can be used to control the shear and to vary the sensitivity of the system. The direction of sensitivity is easily controlled by rotation of the diffraction grating around its normal. Introducing photopolymer holographic gratings in ESPSI gives the advantage of using high aperture optical elements at relatively low cost. The fact that the diffractive optical element is a photopolymer layer on glass substrate with thickness of 2 mm makes for a compact optical system. The system was successfully used for detection of the resonant frequencies of a vibrating object. Most of the published work on vibration analysis is analytical....
http://arrow.dit.ie/cieoart/3
Marked
Mark
A Vocalisation-based Drawing Interface for Disabled Children
(2004)
Burke, Ted
A Vocalisation-based Drawing Interface for Disabled Children
(2004)
Burke, Ted
Abstract:
<p>In our work with disabled children at Ireland’s National Rehabilitation Hospital, a problem we have experienced in the facilitation of art activities is that traditional art materials and standard computer drawing programs sometimes prove inaccessible. In this paper, an original system, called “PaintMyVoice” is presented which facilitates the creation of two or three-dimensional images using a variety of novel input modalities. In particular, vocalisations can be used to create original images of a variety of objects, including trees, flowers and landscape elements. Additional input to the system can optionally be provided via mouse, keyboard, switch interface or digital camera depending on the abilities of the user. Here, the program’s user interface is described, with an emphasis on accessibility features. The signal processing techniques used to measure various vocal characteristics including intensity, pitch and other spectral characteristics are outlined. The means of ...
http://arrow.dit.ie/teapotart/5
Displaying Results 1 - 25 of 908 on page 1 of 37
1
2
3
4
5
6
7
8
9
10
Bibtex
CSV
EndNote
RefWorks
RIS
XML
Item Type
Book chapter (11)
Conference item (422)
Doctoral thesis (82)
Journal article (352)
Master thesis (research) (12)
Master thesis (taught) (17)
Report (6)
Working paper (2)
Other (4)
Institution
Dublin City University (121)
NUI Galway (27)
NUI Maynooth (332)
Trinity College Dublin (172)
University College Cork (11)
University College Dublin (2)
University of Limerick (6)
Dublin Institute of Technology (237)
Peer Review Status
Peer reviewed (748)
Non peer reviewed (153)
Unknown (7)
Year
2012 (17)
2011 (93)
2010 (123)
2009 (118)
2008 (78)
2007 (107)
2006 (77)
2005 (88)
2004 (74)
2003 (42)
2002 (18)
2001 (16)
2000 (18)
1999 (7)
1998 (8)
1997 (5)
1996 (7)
1995 (1)
1994 (1)
1993 (2)
1992 (3)
1991 (2)
1990 (1)
1989 (2)
built by Enovation Solutions