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All Outputs (106)

Optical performances of refractive Crossed Compound Parabolic Concentrator CCPC (2014)
Presentation / Conference Contribution
Sellami, N., & Mallick, T. (2014). Optical performances of refractive Crossed Compound Parabolic Concentrator CCPC. In 29th European Photovoltaic Solar Energy Conference and Exhibition EU PVSCE 29, Netherlands (2146-2149). https://doi.org/10.4229/EUPVSEC

The design of solar concentrators depends on its application (thermal or PV) and on the tracking system that will be used. Low geometrical concentration ratios (Cg) are

Mapping on surfaces: Supporting collaborative work using interactive tabletop (2014)
Presentation / Conference Contribution
Sinmai, K., & Andras, P. (2014). Mapping on surfaces: Supporting collaborative work using interactive tabletop. In CYTED-RITOS International Workshop on Groupware (319-334). https://doi.org/10.1007/978-3-319-10166-8_29

We investigate the usability of our mindmap application using a tabletop integrated with four Android tablets in the context of support for collaborative work. This paper presents two empirical studies that compares the conventional paper-and-pen app... Read More about Mapping on surfaces: Supporting collaborative work using interactive tabletop.

Heat Exchanger Networks Retrofitted with Simultaneous Pressure Recovery (2014)
Presentation / Conference Contribution
Onishi, V., Ravagnani, M., & Caballero, J. A. (2014). Heat Exchanger Networks Retrofitted with Simultaneous Pressure Recovery. In XX Brazilian Congress of Chemical Engineering – COBEQ 2014

This paper presents a new optimization model for the retrofit of heat exchanger networks (HENs), in which the pressure recovery of streams is used to enhance heat integration. Especially important in sub-ambient processes, the HEN retrofit with press... Read More about Heat Exchanger Networks Retrofitted with Simultaneous Pressure Recovery.

Advances in Additive Manufacturing Processes (2014)
Presentation / Conference Contribution
Oppon, C., Hackney, P., Shyha, I., & Beeby, J. (2014). Advances in Additive Manufacturing Processes. In 3rd Applied Research Conference in Africa

Additive Manufacturing (AM) which is also referred as Three Dimensional Printing (3DP), Solid Freeform Fabrication (SFF) or Rapid Prototyping (RP) is a layer-by-layer technique of producing a three-dimensional (3D) objects directly from a digital mod... Read More about Advances in Additive Manufacturing Processes.

Controllability for positive discrete–time linear systems with positive state (2014)
Presentation / Conference Contribution
Guiver, C., & Townley, S. (2014, July). Controllability for positive discrete–time linear systems with positive state. Presented at The 21st International Symposium on Mathematical Theory of Networks and Systems, Groningen, The Netherlands

Controllability of componentwise nonnegative discrete-time linear systems is considered. The key difference here from the well-established positive systems theory is that we permit the case where the input takes negative values, provided that the sta... Read More about Controllability for positive discrete–time linear systems with positive state.

A stability/instability trichotomy for non-negative Lur'e systems (2014)
Presentation / Conference Contribution
Bill, A., Guiver, C., Logemann, H., & Townley, S. (2014, July). A stability/instability trichotomy for non-negative Lur'e systems. Presented at 21st International Symposium on Mathematical Theory of Networks and Systems, Groningen, The Netherlands

We identify a stability/instability trichotomy for a class of non-negative continuous-time Lur'e systems. Asymptotic as well as input-to-state stability concepts (ISS) are considered. The presented trichotomy rests on Perron-Frobenius theory, absolut... Read More about A stability/instability trichotomy for non-negative Lur'e systems.

Mathematical Model for Calibration of Nonlinear Responses in Biological Media Exposed to RF Energy (2014)
Presentation / Conference Contribution
See, C., Abd-Alhameed, R., & Excell, P. (2014, March). Mathematical Model for Calibration of Nonlinear Responses in Biological Media Exposed to RF Energy. Presented at 9th IET International Conference on Computation in Electromagnetics (CEM 2014), London,

This paper presents a circuit model which is used to calibrate the performance of nonlinear RF energy conversion inside a high quality factor resonant cavity with a known nonlinear loading device. The nonlinear radiofrequency energy conversion can be... Read More about Mathematical Model for Calibration of Nonlinear Responses in Biological Media Exposed to RF Energy.

Acoustic Emission Source Identification in Pipes Using Finite Element Analysis (2014)
Presentation / Conference Contribution
Abolle, J., Palacio Torralba, J., Chen, Y., & Reuben, R. (2014). Acoustic Emission Source Identification in Pipes Using Finite Element Analysis.

Stress waves propagate through a structure when it experiences rapid changes in loading, which can come about from a number of phenomena of interest in mechanical and process engineering. One class of applications is in structural health monitoring,... Read More about Acoustic Emission Source Identification in Pipes Using Finite Element Analysis.

The role of simulation in designing for universal access. (2014)
Presentation / Conference Contribution
Keates, S., & Looms, P. O. (2014). The role of simulation in designing for universal access. In C. Stephanidis, & M. Antona (Eds.), Universal access in human-computer interaction. Design and development methods for universal access: 8th International Conf

It is known that the adoption of user-centred design processes can lead to more universally accessible products and services. However, the most frequently cited approach to user-centred design, i.e. participatory design, can be both problematic and e... Read More about The role of simulation in designing for universal access..

Epsilon-Near-Zero Nanoantennas (2014)
Presentation / Conference Contribution
La Spada, L. (2014). Epsilon-Near-Zero Nanoantennas. In Proceedings of the 9th International Conference on Body Area Networks. https://doi.org/10.4108/icst.bodynets.2014.257015

In this paper the design of Epsilon Near Zero (ENZ) antennas, working in the infrared and optical regime, is presented. Two different structures are considered: the classical PEC antenna and the dielectric dipole covered by ENZ material antenna. The... Read More about Epsilon-Near-Zero Nanoantennas.

Challenges and opportunities in transforming laser system industry to deliver integrated product and service offers (2014)
Presentation / Conference Contribution
Vasantha, G., Roy, R., & Corney, J. (2014, October). Challenges and opportunities in transforming laser system industry to deliver integrated product and service offers. Presented at 15th IFIP WG 5.5 Working Conference on Virtual Enterprises, PRO-VE 2014,

Laser system industry is a complex network entity that includes laser component manufacturer, laser manufacturer, system integrator, laser job shop, laser process developer and end product manufacturer. Currently this market segment is predominately... Read More about Challenges and opportunities in transforming laser system industry to deliver integrated product and service offers.

Estimation of the power electronic converter lifetime in fully rated converter wind turbine for onshore and offshore wind farms (2014)
Presentation / Conference Contribution
Givaki, K., Jamieson, P., & Parker, M. (2014, April). Estimation of the power electronic converter lifetime in fully rated converter wind turbine for onshore and offshore wind farms. Presented at 7th IET International Conference on Power Electronics, Mach

A comparison has been made of the converter lifetime for a 3MW fully rated converter horizontal axis wind turbine located onshore and offshore. Simulated torque and speed of the turbine shaft were used to calculate voltage and current time series, th... Read More about Estimation of the power electronic converter lifetime in fully rated converter wind turbine for onshore and offshore wind farms.

Developing a fuzzy new -generation whole-life cost model for medium-sized office buildings. (2014)
Presentation / Conference Contribution
Tokede, O. O., D'Amico, B., Gupta, N. K., & Wamuziri, S. (2014). Developing a fuzzy new -generation whole-life cost model for medium-sized office buildings.

Purpose of this paper The purpose of this paper is to explore the investment appraisal aspects of the new-generation whole-life cost (NWLC) model and develops a fuzzy new-generation whole-life cost model for 25 simulated configurations of a steel-ty... Read More about Developing a fuzzy new -generation whole-life cost model for medium-sized office buildings..

Variation of modal parameters of pile-supported structures in seismically liquefiable soils. (2014)
Presentation / Conference Contribution
Lombardi, D., & Bhattacharya, S. (2014). Variation of modal parameters of pile-supported structures in seismically liquefiable soils.

This paper presents experimental results that aimed to investigate the effects of soil liquefaction on the modal parameters (i.e. frequency and damping ratio) of pile-supported structures. The tests were carried out using the shaking table facility... Read More about Variation of modal parameters of pile-supported structures in seismically liquefiable soils..

A form finding method for post formed timber grid shell structures. (2014)
Presentation / Conference Contribution
D'Amico, B., Kermani, A., & Zhang, H. (2014). A form finding method for post formed timber grid shell structures. . https://doi.org/10.13140/2.1.3949.8888

Timber grid shells provide efficient ways of covering large openings with relatively small amount of materials. With three-dimensional CAD software, it is now possible to model a free-form surface and discretize it in smaller straight elements, thus... Read More about A form finding method for post formed timber grid shell structures..

New thin aerogel based high performance internal wall insulation for existing solid wall buildings. (2014)
Presentation / Conference Contribution
Carty, L., Garnier, C., Bros Williamson, J., & Currie, J. (2014, March). New thin aerogel based high performance internal wall insulation for existing solid wall buildings. Presented at Rehab 2014

Applications of nanotechnology in the form of high performing aerogel insulation are now widely used from space exploration to the oil and gas industry and in more recent years in the construction industry. Previous research has shown the merits of t... Read More about New thin aerogel based high performance internal wall insulation for existing solid wall buildings..

Energy performance evaluation of a passive house built to Scottish building standards. (2014)
Presentation / Conference Contribution
Bros Williamson, J., Stinson, J., & Currie, J. (2014). Energy performance evaluation of a passive house built to Scottish building standards.

Ensuring that predicted (simulated) energy performance figures are realised once a building is in-use has been of growing concern since issues surrounding the ‘performance gap’ were realised in the mid 1990’s [1]. Increasing energy demand and a decre... Read More about Energy performance evaluation of a passive house built to Scottish building standards..

Structural Analysis and Characterization of Radial Flux PM Generators for Direct-Drive Wind Turbines (2014)
Presentation / Conference Contribution
Jaen-Sola, P., & McDonald, A. S. (2014, September). Structural Analysis and Characterization of Radial Flux PM Generators for Direct-Drive Wind Turbines. Presented at 3rd Renewable Power Generation Conference (RPG 2014), Naples, Italy

Wind turbine direct-drive generator structures are analysed in order to optimise and reduce mass. A method for modelling key stiffness parameters including a magnetic air-gap stiffness is outlined. Different approaches are used to parametrically calc... Read More about Structural Analysis and Characterization of Radial Flux PM Generators for Direct-Drive Wind Turbines.