The University of Southampton

Date:
2009-2010
Theme:
Accessible Technologies

This latest information has been taken from the Teachernet website.

"The DCSF has made funding available for a consortium to lead work on a small-scale pilot project to test practical solutions aimed at improving the availability of published curriculum materials in formats that are accessible for visually impaired and dyslexic pupils who are studying at either Key Stage 3 or 4. This pilot project will run for up to two years (2009-11).

Background and rationale

This pilot project comes in response to the RNIB campaign "Right to Read'. That campaign seeks to ensure that 'blind and partially sighted people are able to read the same books at the same time and at the same price as sighted people.' In 2003, the Right to Read Charter was launched stating that:

    * every day three million children and adults are denied the Right to Read just because they have a sight problem: dyslexia or a reading disability * ninety-five per cent of all books, magazines and other publications never become available in large print, audio or Braille.

The RNIB's campaign report, 'Where's My Book?' demonstrated that the current system for providing accessible versions of textbooks to blind and partially-sighted school pupils is not working. Delays often occur in the provision of accessible material and children's educational and social progress suffers as a result.

Evidence suggests that the provision of written materials in alternative formats can be an inefficient and expensive use of a school's staff time and financial resources. Where written materials are not provided in a timely and efficient way it can have a negative impact on the educational progress of print disabled students.

The DCSF believes that the solution to this problem lies in ensuring that curriculum materials are available in electronic form to enable efficient production of formats that are accessible to all learners with print disabilities.

Primary investigators

Partner

  • Dolphin Computer Access

Associated research group

  • Learning Societies Lab
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Date:
2008-
Theme:
Accessible Technologies

Web2Access is a JISC TechDis funded project, whose purpose is to develop a practical, pragmatic and relevant toolkits to support the projects funded within the JISC Users and Innovation Programme in their engagement with next generation and Web 2.0 technologies and emerging legal issues, such as IP, libel and accessibility. You may find Web2Rights a useful resource to explore.

There are a number of ways in which these projects will engage with Web 2.0 and the resources created here will be relevant for projects which are:

* Adapting and deployment of pre-existing tools, technologies and software. * Developing new tools, technologies and software. * Adapting and using own content. * Use of third party created content.

We anticipate that these tools will also be useful for other projects funded by JISC, JISC Programme Managers, organisations represented by the Strategic Content Alliance, the wider Higher and Further education communities, and other organisations engaged with the web.

Primary investigators

Secondary investigators

Associated research group

  • Web and Internet Science
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1- Velocity sensor block diagram. 2- First prototype.
Date:
2009-
Theme:
MEMs and NEMs

This research is about the analysis, design and implementation of a new two degree-of-freedom (DoF) capacitive micro-electro-mechanical system (MEMS) velocity sensor. A first prototype MEMS velocity sensor was fabricated using piezoresistive transducer technique to prove the concept; however this proposed sensor is susceptible to temperature changes and has lower sensitivity. The sensor presented in this research has been specifically designed with capacitive transducer and actuation technique to avoid such drawbacks. This velocity sensor is envisaged for active vibration control of distributed flexible structures such as thin plates and shells. It can be used with a piezoelectric patch actuator to construct dual and collocated sensor-actuator pair, in order to implement direct velocity feedback control loop. The sensor comprises an internal feedback loop, which produces a sky-hook damping effect on the principal mass-spring-damper system of the sensor. In contrast to standard accelerometer vibration sensors, the frequency response function of the velocity sensor has three important properties for the implementation of stable velocity feedback loops, which are an advantage introduced by the sky-hook damping effect: First, at low frequencies below the fundamental resonance of the 2-DoF, the output of the sensor becomes proportional to the velocity of the sensor’s frame; second, around the fundamental resonance of the transducer, it is characterised by a flat amplitude spectrum; and third, above the fundamental resonance of the transducer, it is characterised by an amplitude roll-off with only a 90o phase lag. Thus this sensor produces the desired velocity output up to a cut off frequency and then produces a filtering effect with little phase lag. In this way it can prevent the strong control spillover effect that characterise velocity feedback loops using piezoelectric strain actuators.

Primary investigators

  • mk1
  • Professor Paolo Gardonio - ISVR

Associated research groups

  • Nano Research Group
  • Southampton Nanofabrication Centre
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Date:
2009-2009
Themes:
Knowledge Technologies, Web Science
Funding:
JISC

This project will develop a prototype demonstrator that synthesises research information from heterogeneous sources (institutional repositories and research council information systems), resolves name co-reference issues between the sources, and presents it to research-focussed end users through an interface that will allow them to explore the state of the research landscape in UKHE.

Primary investigator

Secondary investigators

Associated research groups

  • Intelligence, Agents, Multimedia Group
  • Dependable Systems & Software Engineering
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Figure 1 Lateral crystallization length as a function of anneal duration for (a) Si-on-Air and Si-on-Oxide structures annealed at 550°C and (b) fluorine implanted α-Si films with different implant doses annealed at 500°C.
Theme:
Nanoelectronics

Laboratory tests are a vital part of the accurate diagnosis of a patient’s condition, with around 1 billion tests performed in the UK each year. To enable the routine application of predictive, preventive and personalized healthcare, these biochemical tests will have to be performed at a much larger scale, at much lower cost, and preferably at point-of-care locations rather than at clinical laboratories. The realization of this highly desirable situation necessitates the development of new, more cost-effective, technologies for biosensor fabrication. Recently, silicon nanowire biosensors have been reported suitable for real-time, high sensitivity, high selectivity and label-free biosensing. The high sensitivity is due to the nanoscale diameter of nanowires, which is comparable to that of biomolecules. However, while the feasibility of nanowire biosensors has been demonstrated, current fabrication approaches are expensive due to the use of silicon-on-insulator wafers and e-beam lithography.

This project aims to develop a low-cost fabrication process for silicon nanowire biosensors using thin film transistor technology. The use of low cost glass or plastic substrates requires a low thermal budget process for the nanowire biosensor fabrication. Amorphous silicon could be used to fabricate the silicon nanowires, but the mobility is very low. In this project, nickel-induced lateral crystallization is being researched to convert amorphous silicon into polycrystalline silicon using a low temperature anneal. Polycrystalline silicon has a dramatically higher value of mobility than amorphous silicon and hence should give better sensor performance. Two nanowire configurations are being investigated, namely Si-on-Oxide and Si-on-Air. The Si-on-Oxide structure has the advantage of a simple fabrication process, whereas the Si-on-Air structure has the advantage of allowing biomolecule attachment all around the nanowire and hence should have higher sensitivity. Fig.1(a) shows that crystallization proceeds more rapidly in the Si-on-Air structure, which should allow crystallization to be achieved at a lower temperature. We are also investigating the use of fluorine implantation to enhance the crystallization. Fig.1 (b) shows that fluorine aids crystallization at or below a critical dose of 1E15 cm-2.

Primary investigator

  • Professor Peter Ashburn

Secondary investigator

  • Sun, Kai

Associated research groups

  • Nano Research Group
  • Southampton Nanofabrication Centre
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Theme:
Nanophotonics and Biomimetics

semiconductor nanowires offer numerous opportunities for next generation subwavelength optical information processors. As the one dimensional building block element a collection of them can assume different functions in three units of nanoscale photonic circuitry;(i) light generation (active part), (ii) interconnects (passive) and (iii) light detection module. All of these three parts operate on the basis of waveguide principles, although several other issues can affect on the functionality of each individual core. These include coupling, confinement, loss, thermoptics and electrooptics effects, and a number of other material or geometrical concerns. Therefore, this project aims to rigorously investigate and model arbitrary geometric semiconductor nanowire structures fabricated by top-down and bottom-up method, light generation mechanism and perform optical characterization of the nanowires using an integrated near field scanning optical microscope with Raman spectrometer and Laser spectroscopy. All modelling processes are based on commercial software and finite difference time domain algorithm (FDTD) to solve Maxwell’s equations for the desired spatial structure. The semiconductor nanowires of interest are silicon, Silica, zinc oxide, and tantalum pentoxide and heterostructure silicon-germanium. The work is then expanded to more complicated cross sections and functional geometries for various material indices. The results can be then employed as the platform to

- explore the possibility of integrating passive nanowire waveguides with other active photonic and electronic devices in nanoscale for more practical architectures. - invistigate the the applicability of Light modulation techniques in nanowire for computing and communication applications. - couple light efficiently form large scale (micro/macroscopic) into nanostructures for practical application. - Model active nanowire devices in order to provide a clear image of light coupling between light generation and light guiding units.

Primary investigators

Associated research groups

  • Nano Research Group
  • Southampton Nanofabrication Centre
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Theme:
Nanophotonics and Biomimetics

semiconductor nanowires offer numerous opportunities for next generation subwavelength optical information processors. As the one dimensional building block element a collection of them can assume different functions in three units of nanoscale photonic circuitry;(i) light generation (active part), (ii) interconnects (passive) and (iii) light detection module. All of these three parts operate on the basis of waveguide principles, although several other issues can affect on the functionality of each individual core. These include coupling, confinement, loss, thermoptics and electrooptics effects, and a number of other material or geometrical concerns. Therefore, this project aims to rigorously investigate and model arbitrary geometric semiconductor nanowire structures fabricated by top-down and bottom-up method, light generation mechanism and perform optical characterization of the nanowires using an integrated near field scanning optical microscope with Raman spectrometer and Laser spectroscopy. All modelling processes are based on commercial software and finite difference time domain algorithm (FDTD) to solve Maxwell’s equations for the desired spatial structure. The semiconductor nanowires of interest are silicon, Silica, zinc oxide, and tantalum pentoxide and heterostructure silicon-germanium. The work is then expanded to more complicated cross sections and functional geometries for various material indices. The results can be then employed as the platform to

-explore the possibility of integrating passive nanowire waveguides with other active photonic and electronic devices in nanoscale for more practical architectures. -invistigate the the applicability of Light modulation techniques in nanowire for computing and communication applications. -couple light efficiently form large scale (micro/macroscopic) into nanostructures for practical application. -Model active nanowire devices in order to provide a clear image of light coupling between light generation and light guiding units.

Primary investigators

  • Ehsan Jaberansari
  • Dr. Harold Chong

Associated research groups

  • Nano Research Group
  • Southampton Nanofabrication Centre
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Theme:
Nanophotonics and Biomimetics
Funding:
_other, Department

semiconductor nanowires offer numerous opportunities for next generation subwavelength optical information processors. As the one dimensional building block element a collection of them can assume different functions in three units of nanoscale photonic circuitry;(i) light generation (active part), (ii) interconnects (passive) and (iii) light detection module. All of these three parts operate on the basis of waveguide principles, although several other issues can affect on the functionality of each individual core. These include coupling, confinement, loss, thermoptics and electrooptics effects, and a number of other material or geometrical concerns. Therefore, this project aims to rigorously investigate and model arbitrary geometric semiconductor nanowire structures fabricated by top-down and bottom-up method, light generation mechanism and perform optical characterization of the nanowires using an integrated near field scanning optical microscope with Raman spectrometer and Laser spectroscopy. All modelling processes are based on commercial software and finite difference time domain algorithm (FDTD) to solve Maxwell’s equations for the desired spatial structure. The semiconductor nanowires of interest are silicon, Silica, zinc oxide, and tantalum pentoxide and heterostructure silicon-germanium. The work is then expanded to more complicated cross sections and functional geometries for various material indices. The results can be then employed as the platform to

-explore the possibility of integrating passive nanowire waveguides with other active photonic and electronic devices in nanoscale for more practical architectures. -invistigate the the applicability of Light modulation techniques in nanowire for computing and communication applications. -couple light efficiently form large scale (micro/macroscopic) into nanostructures for practical application. -Model active nanowire devices in order to provide a clear image of light coupling between light generation and light guiding units.

Primary investigators

  • Ehsan Jaberansari
  • Dr. Harold Chong

Associated research groups

  • Nano Research Group
  • Southampton Nanofabrication Centre
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Logo
Date:
2009-2011
Theme:
MEMs and NEMs
Funding:
EPSRC

The aim of the project is to design, develop and implement an interface based on Sigma-Delta Architecture for Micro-Machined Vibratory Gyroscope. The main idea was to improve the linearity, Dynamic range and Bandwidth. How ever, now the challenge is to reduce the noise effect and improve the accuracy and sensitivity of the interface.

Primary investigator

  • Prof. Michael Kraft (mk1)

Partner

  • THALES

Associated research groups

  • Nano Research Group
  • Southampton Nanofabrication Centre
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System Diagram of Sigma Delta Modulator Based Interface.
Date:
2009-2011
Theme:
MEMs and NEMs
Funding:
EPSRC

The aim of the project is to design, develope and implement an interface based on Sigma-Delta Architecture for Micro-Machined Vibratory Gyroscope. The main idea was to improve the linearaty, Dynamic range and Bandwidth. How ever, now the challenge is to reduce the noise effect and improve the accuracy and sensitivity of the interface.

Primary investigator

  • Prof. Michael Kraft (mk1)

Partner

  • THALES

Associated research groups

  • Nano Research Group
  • Southampton Nanofabrication Centre
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