Mike Hayes

ORCID: 0000-0002-9805-1193
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Research Areas
  • Energy Harvesting in Wireless Networks
  • Innovative Energy Harvesting Technologies
  • Wireless Power Transfer Systems
  • 3D IC and TSV technologies
  • Data Visualization and Analytics
  • Advanced Thermoelectric Materials and Devices
  • Energy Efficient Wireless Sensor Networks
  • Magnetic Properties and Applications
  • Computer Graphics and Visualization Techniques
  • Electronic Packaging and Soldering Technologies
  • Advanced Battery Technologies Research
  • Metallic Glasses and Amorphous Alloys
  • Radio Frequency Integrated Circuit Design
  • Magnetic properties of thin films
  • Advanced Sensor and Energy Harvesting Materials
  • IoT-based Smart Home Systems
  • Copper Interconnects and Reliability
  • Protein Hydrolysis and Bioactive Peptides
  • Acoustic Wave Resonator Technologies
  • Electromagnetic Compatibility and Noise Suppression
  • Semiconductor materials and devices
  • Advanced DC-DC Converters
  • IoT and Edge/Fog Computing
  • Composite Structure Analysis and Optimization
  • Food Supply Chain Traceability

University College Cork
1993-2024

International Energy Research Centre
2017-2021

Tyndall National Institute
2010-2020

Teagasc - The Irish Agriculture and Food Development Authority
2006-2015

Mahidol University
2012

HealthPartners
2010

National Microelectronics Applications Centre (Ireland)
2009

London Metropolitan University
1991

Cereal and plant proteins are used frequently in the manufacture of animal, fish, human food products but often deficient essential amino acids. In contrast, macroalgal contain all acids a rich source other bioactives, including taurine, lipids, carotenoids, pigments. Furthermore, substrate for bioactive peptides generation. This paper discusses bioactives their potential use nutrition health. Issues safe use, sustainability supply, efficient drying processing methods, novel extraction...

10.1080/87559129.2015.1041184 article EN Food Reviews International 2015-07-31

ABSTRACT Three peptides produced by a Lactobacillus acidophilus DPC6026 fermentation of sodium caseinate and showing antibacterial activity against pathogenic strains Enterobacter sakazakii ATCC 12868 Escherichia coli DPC5063 were characterized. These all generated from bovine α s1 -casein identified as IKHQGLPQE, VLNENLLR, SDIPNPIGSENSEK. may have bioprotective applicability potential use in milk-based formula, which has been linked to E. infection neonates.

10.1128/aem.72.3.2260-2264.2006 article EN Applied and Environmental Microbiology 2006-03-01

A thermoelectric energy harvester powered wireless sensor networks (WSNs) module designed for building management (BEM) applications is built and tested in this work. An analytic generator (TEG) electrical model verified based on parameters given manufacturer data sheets of Bismuth Telluride TEGs. charge pump/switching regulator two-stage ultra-low voltage step-up DC/DC converter design presented work to boost the <0.5 V output TEG usable level WSN (3.3 V). The concept, device simulation,...

10.1155/2013/232438 article EN cc-by International Journal of Distributed Sensor Networks 2013-06-01

Power electronics is a key technology for the efficient conversion, control, and conditioning of electric energy from source to load. In this paper, potential power savings in four major application fields, buildings lighting, supplies, smart electricity grid, industrial drives, investigated. It shown that by wider adoption these areas, current European Union consumption could be reduced 25%. The challenges exploiting all areas are identified paper.

10.1109/tpel.2011.2171195 article EN IEEE Transactions on Power Electronics 2011-10-17

For most wireless sensor networks, one common and major bottleneck is the limited battery lifetime. The frequent maintenance efforts associated with replacement significantly increase system operational logistics cost. Unnoticed power failures on nodes will degrade reliability may lead to failure. In building management applications, solve this problem, small energy sources such as indoor light are promising provide long-term these distributed nodes. This article provides comprehensive...

10.1145/1773814.1773817 article EN ACM Journal on Emerging Technologies in Computing Systems 2008-06-18

Wireless sensor network technology emerged in recent years with numerous potential applications. The building environment and energy monitoring (BEEM) is among the most important ones. design of such smart wireless sensing system presented this paper. proposed consists low power Tyndall node hardware light harvesting featured supply management for long-term deployment. Energy consumption, level, temperature humidity parameters are measured transmitted via a 2.4GHz Zigbee network. Evaluations...

10.1109/esiat.2010.5568311 article EN 2010-07-01

The materials and the fabrication of planar magnetic components for switch mode power supplies (SMPSs) other applications are reviewed. advantages disadvantages such devices introduced. used in devices, as ferrite, amorphous metallic glass, thin thick films, detailed. have varying degrees planarization-partially with cores windings truly integrated circuits magnetics. Devices both types reported literature since 1979 design must be optimized respect to losses, issues which relate electrical,...

10.1109/33.180055 article EN IEEE Transactions on Components Hybrids and Manufacturing Technology 1992-01-01

This paper presents the design of miniaturized bond wire transformers assembled with standard IC bonding wires and NiZn MnZn ferrite toroidal cores. Several prototypes are fabricated on a printed circuit board substrate various layouts in 4.95 mm × area. The devices modeled by analytical means characterized impedance measurements over wide frequency range. Experimental results 1:38 device show that secondary self-inductance increases from 0.3 μH aircore to 315 core; coupling coefficient...

10.1109/tpel.2014.2370814 article EN IEEE Transactions on Power Electronics 2014-11-13

For many wireless sensor networks applications, indoor light energy is the only ambient source commonly available. Many advantages and constraints co-exist in this technology. However, relatively few powered harvesters have been presented much research remains to be carried out on a variety of related design considerations trade-offs. This work presents solution using Tyndall mote an node. It analyses several issues such as characteristics, solar panel component choice, maximum power point...

10.1109/wirelessvitae.2009.5172418 article EN 2009-05-01

FeSiB based soft magnetic flakes (SMFs; ϕ: 63-106 µm, t: 2-5 µm) coated with optimally thick (∼10 nm) SiO2 were fabricated as the potential material for pressed cores suitable use in power inductors operating beyond 10 MHz. Such thin SMFs produced by mechanical ball milling of commercially available (∼27 ribbons followed an optimized sol-gel coating presence a silane coupling agent. Milling helped to reduce ribbon thickness below skin depth minimize eddy current loss at high frequencies. The...

10.1063/9.0000406 article EN cc-by AIP Advances 2023-02-01

The Internet of Things (IoT) offers disruptive potential to address the most urgent challenges our world - from climate change ensuring clean energy, safe food and caring for health well-being. Wireless IoT sensory devices can be placed on, in or near people, equipment, infrastructure environment gather enable such services. Analysts predict a 1 trillion sensor economy by year 2025 [1]. However, achieve this vision we need 'power IoT' gap, i.e. batteries that outlive they power. At present...

10.1109/mpel.2021.3099540 article EN IEEE Power Electronics Magazine 2021-09-01

This paper presents a design study of new topology for miniaturized bondwire transformers fabricated and assembled with standard IC bonding wires toroidal ferrite (Fair-Rite 5975000801) as magnetic core. The micro-transformer realized on PCB substrate, enables the build magnetics on-top-of-chip, thus leading to high power density components. Impedance measurements in frequency range between 100 kHz 5 MHz, show that secondary self-inductance is enhanced from 0.3 μH an epoxy core 315 Moreover,...

10.5555/2616606.2616781 article EN Design, Automation, and Test in Europe 2014-03-24

Journal Article SMALL VIBRATIONS OF A FIBRE-REINFORCED COMPOSITE Get access NIGEL SCOTT, SCOTT Department of Mathematics, University DundeeDundee Search for other works by this author on: Oxford Academic Google Scholar MICHAEL HAYES Mathematical Physics, CollegeDublin The Quarterly Mechanics and Applied Volume 29, Issue 4, November 1976, Pages 467–486, https://doi.org/10.1093/qjmam/29.4.467 Published: 01 1976 history Received: 16 August 1975 Revision received: 15 December

10.1093/qjmam/29.4.467 article EN The Quarterly Journal of Mechanics and Applied Mathematics 1976-01-01

In this paper, an adaptive transmission power control method for wireless sensor networks is presented. The minimum of one node with the neighboring nodes are considered as “distance”. Optimization whole therefore converted to a shortest path problem based on so-called “power distance”. Not only performed, but also topology network achieved. solution gives levels all and optimized routing information network. Measurements show reduction in around 30–40% average nodes.

10.1049/cp.2010.0523 article EN 2010-01-01

This paper presents the design of a 1: 50 bondwire micro-transformer assembled with IC gold bonding wires and toroidal LTCC magnetic core race-track shape. The transformer is fabricated on-top standard BCD in 15 mm2 footprint area for micro-power energy harvesting applications. Measurements show secondary self-inductance up to 29 μH maximum Q-factor 11.6 at 1.3 MHz, coupling coefficient 0.65 an effective turns ratio 19. miniaturized technology finds also applications power supply package...

10.1016/j.proeng.2014.11.597 article EN Procedia Engineering 2014-01-01

This paper presents the design of hybrid energy storage unit (HESU) for harvesting applications using super-capacitor and thin film battery (TFB). The power management circuits this are proposed to perform "smart" charge/discharge control in order optimize HESU from perspectives loss due leakage current equivalent series resistance (ESR). shows characterizations ESUs powered wireless sensor networks (WSN) applications. A new is utilize low ESR characteristics TFB storage. average measured at...

10.1088/1742-6596/476/1/012105 article EN Journal of Physics Conference Series 2013-12-04

This working paper introduces a multi-source energy harvesting powered acoustic emissions (AE) monitoring system for the applications of rotating machine fault detections. wireless sensor prototype records AE signal at approximately 200KHz frequency. It performs fast Fourier transform (FFT) and compares results with known patterns. An solution utilizes vibrational, thermal light as power supply node. The multiple-source harvester proposed in this work generates 1.56mW from 25--48mg vibration...

10.1145/2534208.2534224 article EN 2013-11-13

Energy harvesting with its ubiquitous availability is intensively investigated to extend the wireless sensor nodes lifetime. While harvested power often less than 1 mW, commercial-off-the-shelf management circuits designed for conventional battery applications operate in much higher power. A designated module sub-mW energy harvester proposed this article increase conversion efficiency and storage lifetime small input The consists of discrete component–based pulse-width modulation (PWM)...

10.1177/1045389x12463464 article EN Journal of Intelligent Material Systems and Structures 2012-11-15

The trend towards smart building and modern manufacturing demands ubiquitous sensing in the foreseeable future. Self-powered Wireless sensor networks (WSNs) are essential for such applications. This paper describes bulk material based thermoelectric generator (TEG) design implementation WSN. A 20cm2 Bi0.5Sb1.5Te3 TEG was created with optimized configuration generates 2.7mW typical condition. novel load matching method is used to maximize power output. implemented management module delivers...

10.1088/1742-6596/307/1/012030 article EN Journal of Physics Conference Series 2011-08-17

Since the 1990's, researchers in both academia and industry have been exploring ways to exploit potential for Wireless Sensor Networks (WSNs) revolutionize our understanding of - interaction with world around us. WSNs therefore a major focus research over past 20 years. While offer persuasive solution accurate real-time sensing physical world, they are yet be as ubiquitous originally predicted when technology was first envisaged. Technical difficulties exist which inhibited anticipated...

10.1109/i2mtc43012.2020.9128887 article EN 2022 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) 2020-05-01

This paper presents a design study of new topology for miniaturized bondwire transformers fabricated and assembled with standard IC bonding wires toroidal ferrite (Fair-Rite 5975000801) as magnetic core. The microtransformer realized on PCB substrate, enables the build magnetics on-top-of-chip, thus leading to high power density components. Impedance measurements in frequency range between 100 kHz 5 MHz, show that secondary self-inductance is enhanced from 0.3 μH an epoxy core 315 Moreover,...

10.7873/date2014.155 article EN Design, Automation & Test in Europe Conference & Exhibition (DATE), 2015 2014-01-01

This article presents optimized CoZrTaB-based laminated thin films with a wet etch-able oxide dielectric material. Wet etching capability was studied on the stack material and narrow clean undercut achieved. Good uniaxial anisotropy low coercivity (< 1 Oe) achieved via in situ magnetic alignment during magnetron sputtering. The relative permeability of 432 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$Q$...

10.1109/tmag.2023.3287135 article EN IEEE Transactions on Magnetics 2023-06-16

Data sets acquired from complex scientific simulation, high precision engineering experiment and high-speed computer network have been exponentially increased, visualization analysis of such large-scale data identified as a significant challenge to the community. Over past years many scientists made attempt address this problem by proposing various reduction techniques. Consequently size can be reduced issues associated improved (e.g. real-time interaction visual overload). However, during...

10.1145/2254556.2254649 article EN 2012-05-21
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