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Author = Lau, King-Tong;
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Displaying Results 26 - 39 of 39 on page 2 of 2
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Spectral barcode label for fighting illegal waste dumps
(2010)
Ziółkowski, Bartosz; Lau, King-Tong; Diamond, Dermot
Spectral barcode label for fighting illegal waste dumps
(2010)
Ziółkowski, Bartosz; Lau, King-Tong; Diamond, Dermot
Abstract:
Illegal waste dumping is one of the biggest problem in environment protection. Shipments of waste are left in wastelands, forests or dumped into the sea. These activities are difficult to suppress because technologies available to track the waste, and hence the people responsible, are very limited.(1) This research focuses on developing an effective, low-cost way of labelling and detecting bulk waste material shipments. The technology is based on an easily retrievable material in the form of micro/nano magnets which are used as carrier for the spectral signal transducers (e.g. dyes and pigments). These pigment carrying magnetic particles are chemically and physically stable, can form unique spectral pattern to use as identifier tag. The project is divided into two parts: (i) the modification of the magnet particles with various dyes and pigments to form spectral codes (ii) the development of analytical technique for code readout
http://doras.dcu.ie/15414/
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Spectral barcode label for fighting illegal waste dumps
(2010)
Ziółkowski, Bartosz; Lau, King-Tong; Diamond, Dermot
Spectral barcode label for fighting illegal waste dumps
(2010)
Ziółkowski, Bartosz; Lau, King-Tong; Diamond, Dermot
Abstract:
Illegal waste dumping is one of the biggest problem in environment protection. Shipments of waste are left in wastelands, forests or dumped into the sea. These activities are difficult to suppress because technologies available to track the waste, and hence the people responsible, are very limited.(1) This research focuses on developing an effective, low-cost way of labelling and detecting bulk waste material shipments. The technology is based on an easily retrievable material in the form of micro/nano magnets which are used as carrier for the spectral signal transducers (e.g. dyes and pigments). These pigment carrying magnetic particles are chemically and physically stable, can form unique spectral pattern to use as identifier tag. The project is divided into two parts: (i) the modification of the magnet particles with various dyes and pigments to form spectral codes (ii) the development of analytical technique for code readout.
http://doras.dcu.ie/15430/
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Textile sensors to measure sweat pH and sweat-rate during exercise
(2009)
Coyle, Shirley; Morris, Deirdre; Lau, King-Tong; Diamond, Dermot; Taccini, Nicola; Cons...
Textile sensors to measure sweat pH and sweat-rate during exercise
(2009)
Coyle, Shirley; Morris, Deirdre; Lau, King-Tong; Diamond, Dermot; Taccini, Nicola; Constanzo, Daniele; Salvo, Pietro; Di Francesco, Fabio; Trivella, Maria Giovanna; Porchet, Jacques-André; Luprano, Jean
Abstract:
Sweat analysis can provide a valuable insight into a person’s well-being. Here we present wearable textile-based sensors that can provide real-time information regarding sweat activity. A pH sensitive dye incorporated into a fabric fluidic system is used to determine sweat pH. To detect the onset of sweat activity a sweat rate sensor is incorporated into a textile substrate. The sensors are integrated into a waistband and controlled by a central unit with wireless connectivity. The use of such sensors for sweat analysis may provide valuable physiological information for applications in sports performance and also in healthcare.
http://doras.dcu.ie/3636/
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Textile-based wearable sensors for assisting sports performance
(2009)
Coyle, Shirley; Morris, Deirdre; Lau, King-Tong; Moyna, Niall; Diamond, Dermot
Textile-based wearable sensors for assisting sports performance
(2009)
Coyle, Shirley; Morris, Deirdre; Lau, King-Tong; Moyna, Niall; Diamond, Dermot
Abstract:
There is a need for wearable sensors to assess physiological signals and body kinematics during exercise. Such sensors need to be straightforward to use, and ideally the complete system integrated fully within a garment. This would allow wearers to monitor their progress as they undergo an exercise training programme without the need to attach external devices. This takes physiological monitoring into a more natural setting. By developing textile sensors the intelligence is integrated into a sports garment in an innocuous manner. A number of textile based sensors are presented here that have been integrated into garments for various sports applications.
http://doras.dcu.ie/4502/
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The development of low-cost, robust, reproducible optical chemical sensors using inkjet printing
(2010)
Orpen, Dylan; Fay, Cormac; Beirne, Stephen; Lau, King-Tong; Corcoran, Brian; Diamond, D...
The development of low-cost, robust, reproducible optical chemical sensors using inkjet printing
(2010)
Orpen, Dylan; Fay, Cormac; Beirne, Stephen; Lau, King-Tong; Corcoran, Brian; Diamond, Dermot
Abstract:
The optical sensor industry is forseen to be- come a $4 billion market worldwide within 10 years. This projected figure suggests the incorporation of wireless sensor networks into our daily lives. In order to achieve this, many hardware requirements have already been met, with many of the world’s top university in- volved in wireless "mote" development. The objective of this study is to prove that inkjet printed sensors will be compatible with these motes in terms of both accuracy and more im- portantly reproducibility.
http://doras.dcu.ie/15901/
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The optimisation of a paired emitter-detector diode optical pH sensing device
(2010)
Orpen, Dylan; Beirne, Stephen; Fay, Cormac; Lau, King-Tong; Corcoran, Brian; Diamond, D...
The optimisation of a paired emitter-detector diode optical pH sensing device
(2010)
Orpen, Dylan; Beirne, Stephen; Fay, Cormac; Lau, King-Tong; Corcoran, Brian; Diamond, Dermot
Abstract:
With recent improvements in wireless sensor network hardware there has been a concurrent push to develop sensors that are suitable in terms of price and performance. In this paper a low cost gas sensor is detailed, and significant improvements in sensor characteristics have been achieved compared to previously published results. A chemical sensor is presented based on the use of low cost LEDs as both the light source and photodetector, coupled with a sensor slide coated with a pH sensitive colorimetric dye to create a simple gas sensor. Similar setups have been successfully used to detect both acetic acid and ammonia. The goal of this work was to optimise the system performance by integration of the sensing technique into a purposely deigned flowcell platform that holds the colorimetric slide and optical detector in position. The reproducibility of the sensor has been improved through this arrangement and careful control of deposited film thickness. The enhanced reproducibility bet...
http://doras.dcu.ie/15900/
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Ultra low cost LED based gas sensing
(2011)
Orpen, Dylan; Fay, Cormac; Beirne, Stephen; O'Toole, Martina; Lau, King-Tong; Corc...
Ultra low cost LED based gas sensing
(2011)
Orpen, Dylan; Fay, Cormac; Beirne, Stephen; O'Toole, Martina; Lau, King-Tong; Corcoran, Brian; Diamond, Dermot
Abstract:
Over the last number of years a movement has taken place where conventional point-to-point grab sampling style sensors have slowly been phased out in favor of in situ autonomous sensors. Autonomous sensors provide a better insight into the monitored parameter delivering more data points in a less manual fashion. Over the next ten years, it’s predicted that gas sensors will become smaller, consume less power and exhibit much improved performance, and be of substantially reduced cost [1]. Optical sensors certainly are in pole position in terms of development having already met many of the criteria. The authors present a low cost (< €1) sensing platform. Two L.E.D’s are setup as a light sensor (emitter,detector), where the light passing from the emitter to detector L.E.D is modulated by a chemically selective colorimetric film, providing an indirect chemical measurement (this sensing setup is visible in Figure 1). Our presented experimental setup has exhibited a limit of detection ...
http://doras.dcu.ie/16490/
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Validation of a fully autonomous phosphate analyser based on a microfluidic lab-on-a-chip
(2010)
Slater, Conor; Cleary, John; Lau, King-Tong; Snakenborg, D. ; Corcoran, Brian; Kutter, ...
Validation of a fully autonomous phosphate analyser based on a microfluidic lab-on-a-chip
(2010)
Slater, Conor; Cleary, John; Lau, King-Tong; Snakenborg, D. ; Corcoran, Brian; Kutter, J.P. ; Diamond, Dermot
Abstract:
This work describes the design of a phosphate analyser that utilises a microfluidic lab-on-a-chip. The analyser contains all the required chemical storage, pumping and electronic components to carry out a complete phosphate assay. The system is self-calibrating and self-cleaning, thus capable of long-term operation. This was proven by a bench top calibration of the analyser using standard solutions and also by comparing the analyser's performance to a commercially available phosphate monitor installed at a waste water treatment plant. The output of the microfluidic lab-on-a-chip analyser was shown to have sensitivity and linear range equivalent to the commercially available monitor and also the ability to operate over an extended period of time.
http://doras.dcu.ie/15378/
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WANDA: A Radically New Approach for Low-Cost Environmental Monitoring
(2011)
Fay, Cormac; Beirne, Stephen; Ó Conaire, Ciarán; McGuinness, Kevin; McGovern, Scott; Co...
WANDA: A Radically New Approach for Low-Cost Environmental Monitoring
(2011)
Fay, Cormac; Beirne, Stephen; Ó Conaire, Ciarán; McGuinness, Kevin; McGovern, Scott; Coleman, Greg; Shepherd, Roderick; Lau, King-Tong; Corcoran, Brian; O'Connor, Noel E.; Alici, Gursel; Spinks, Geoff; Wallace, Gordon; Diamond, Dermot
Abstract:
The cost of monitoring pollutants within natural waters is of major concern. Existing and forthcoming bodies of legislation continually drive the demand for spatial and selective monitoring of key pollutants within our environment. Although research and commercial entities continue to drive down the cost of the infrastructure involved in environmental sensing systems (with an aim to increase scalability), the realisation of deploying a number of such systems even now remains out of reach. High cost and maintenance continue to persist as the major limiting factors. The aim of this work is to combine recent advances in robotics with chemical sensing techniques to remove all but the chemo-responsive material from each sensing node, and package the sensing element within a low cost, mobile, biomimetic robotic fish for effective water quality monitoring. Consequently, this approach is believed to radically reduce the systemic cost and maintenance per node and in doing so it will increas...
http://doras.dcu.ie/16233/
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Wearable CO2 sensor
(2009)
Radu, Tanja; Fay, Cormac; Lau, King-Tong; Waite, Rhys; Diamond, Dermot
Wearable CO2 sensor
(2009)
Radu, Tanja; Fay, Cormac; Lau, King-Tong; Waite, Rhys; Diamond, Dermot
Abstract:
High concentrations of CO2 may develop particularly in the closed spaces during fires and can endanger the health of emergency personnel by causing serious physiological effects. The proposed prototype provides real-time continuous monitoring of CO2 in a wearable configuration sensing platform. A commercially available electrochemical CO2 sensor was selected due to its selectivity, sensitivity and low power demand. This was integrated onto an electronics platform that performed signal capture, processing and wireless communication, all within a compact, low-power, rugged enclosure. Wireless transmission (up to 1 km) of the sensor’s signal was achieved using a 2.4 GHz Zigbee module with an integrated ceramic antenna. The signal is currently received by a base station which is connected to a PC and monitored using HyperTerminal. The sensors are powered by a nickel metal hydride rechargeable battery which supplies power to the module for approximately 5 hours. The CO2 sensor is directl...
http://doras.dcu.ie/14908/
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Wearable gas sensors
(2009)
Radu, Tanja; Fay, Cormac; Lau, King-Tong; Diamond, Dermot
Wearable gas sensors
(2009)
Radu, Tanja; Fay, Cormac; Lau, King-Tong; Diamond, Dermot
Abstract:
Wearable sensing applications have attracted much attention in recent years. The aim of the FP6 funded Proetex project is improving safety and efficiency of emergency personnel by developing integrated wearable sensor systems. This paper describes recent developments in the integration of sensing platforms into wearables for the continuous monitoring of environmentally harmful gases surrounding emergency personnel. Low-power miniature CO and CO2 sensors have been successfully integrated in a jacket collar and boot worn by emergency personnel. These sensors need to provide information about the level of gas in the surrounding environment without obstructing the activities of the wearer. This has been achieved by integrating special pockets on the jacket and boot of fire-fighters. Each sensor is attached to a sensing module for signal accommodation and data transfer. The sensor performance has been evaluated by simulation of real-life situations. These wearable gas sensors will drama...
http://doras.dcu.ie/4658/
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Wearable sensing application- carbon dioxide monitoring for emergency personnel using wearable sensors
(2009)
Radu, Tanja; Fay, Cormac; Lau, King-Tong; Waite, Rhys; Diamond, Dermot
Wearable sensing application- carbon dioxide monitoring for emergency personnel using wearable sensors
(2009)
Radu, Tanja; Fay, Cormac; Lau, King-Tong; Waite, Rhys; Diamond, Dermot
Abstract:
The development of wearable sensing technologies is a great challenge which is being addressed by the Proetex FP6 project (www.proetex.org). Its main aim is the development of wearable sensors to improve the safety and efficiency of emergency personnel. This will be achieved by continuous, real-time monitoring of vital signs, posture, activity, and external hazards surrounding emergency workers. We report here the development of carbon dioxide (CO2) sensing boot by incorporating commercially available CO2 sensor with a wireless platform into the boot assembly. Carefully selected commercially available sensors have been tested. Some of the key characteristics of the selected sensors are high selectivity and sensitivity, robustness and the power demand. This paper discusses some of the results of CO2 sensor tests and sensor integration with wireless data transmission.
http://doras.dcu.ie/14986/
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Wearable technology for bio-chemical analysis of body fluids during exercise
(2008)
Morris, Deirdre; Schazmann, Benjamin; Wu, Yanzhe; Coyle, Shirley; Brady, Sarah; Fay, Co...
Wearable technology for bio-chemical analysis of body fluids during exercise
(2008)
Morris, Deirdre; Schazmann, Benjamin; Wu, Yanzhe; Coyle, Shirley; Brady, Sarah; Fay, Cormac; Hayes, Jer; Lau, King-Tong; Wallace, Gordon; Diamond, Dermot
Abstract:
This paper details the development of a textile based fluid handling system with integrated wireless biochemical sensors. Such research represents a new advancement in the area of wearable technologies. The system contains pH, sodium and conductivity sensors. It has been demonstrated during on-body trials that the pH sensor has close agreement with measurements obtained using a reference pH probe. Initial investigations into the sodium and conductivity sensors have shown their suitability for integration into the wearable system. It is thought that applications exist in personal health and sports performance and training.
http://doras.dcu.ie/712/
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Wireless aquatic navigator for detection and analysis (WANDA)
(2010)
Fay, Cormac; Lau, King-Tong; Beirne, Stephen; Ó Conaire, Ciarán; McGuinness, Kevin; Cor...
Wireless aquatic navigator for detection and analysis (WANDA)
(2010)
Fay, Cormac; Lau, King-Tong; Beirne, Stephen; Ó Conaire, Ciarán; McGuinness, Kevin; Corcoran, Brian; O'Connor, Noel E.; Diamond, Dermot; McGovern, Scott; Coleman, Greg; Shepherd, Roderick; Alici, Gursel; Spinks, Geoff; Wallace, Gordon
Abstract:
The cost of monitoring and detecting pollutants in natural waters is of major concern. Current and forthcoming bodies of legislation will continue to drive demand for spatial and selective monitoring of our environment, as the focus increasingly moves towards effective enforcement of legislation through detection of events, and unambiguous identification of perpetrators. However, these monitoring demands are not being met due to the infrastructure and maintenance costs of conventional sensing models. Advanced autonomous platforms capable of performing complex analytical measurements at remote locations still require individual power, wireless communication, processor and electronic transducer units, along with regular maintenance visits. Hence the cost base for these systems is prohibitively high, and the spatial density and frequency of measurements are insufficient to meet requirements. In this paper we present a more cost effective approach for water quality monitoring using ...
http://doras.dcu.ie/15407/
Displaying Results 26 - 39 of 39 on page 2 of 2
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