Enhancing the employability of Brunel students: Assessment and evaluation of a Level 1 multidisciplinary project based teaching activity in the School of Engineering and Design

The Level 1 Multidisciplinary Project (MDP) is a weeklong project that takes place in the last week of Term 1. It involves first year undergraduate students from across the School subject areas of Electronic and Computer Engineering, Mechanical Engineering, Civil Engineering and Design. The project is designed to be a teaching activity that removes the barrier of academic ability by involving a non‐discipline technical element, the primary emphasis being on the development of key transferable skills and the utilisation of problem solving skills that students have begun to develop in their first term at university. Each year around 450 students take part in MDP and they are put into mixed discipline groups of 8 or 9 students tasked with designing, building and demonstrating Lego Mindstorms and BASIC Stamp micro‐controlled vehicles to tackle an obstacle course. This report presents an analysis of responses from students to an online survey set up to evaluate the MDP. The survey was created using the online ‘SurveyMonkey’ website and was made live on 30th March 2011. The survey consisted of 15 questions, including tick box style quantitative questions along with some text based qualitative questions. There was also a request for contact details to be provided, if students would be happy to be contacted for a follow‐up discussion. The aim of the survey was to obtain feedback from students in each subject area, in each academic year group that has taken part in the MDP in the School of Engineering and Design. The survey was designed to try and assess student experiences and recollections of the project activity, to evaluate how the MDP has evolved over the four years it has taken place and inform the continued development of the MDP in future academic years. Information about the survey was sent by email to all students that have participated in the MDP since it was introduced in the 2007/2008 academic year (approximately 1700 students). The emails were written by Dr David Smith who is responsible for the running of the MDP and Dr Jo Cole who is involved in the co‐ordination of the MDP, inviting students to complete the online questionnaire. This report is broken into sections, giving an overview of the survey results as a whole, before looking at key observations in the data by year and by subject area. The survey questions are given in Appendix A with summary charts of the tick box responses given in Appendix B and the raw data from all questions provided by SurveyMonkey in Appendix C. Key points raised in the follow‐up one to‐one email and phone discussions are then presented, with full transcripts of the questions and answers from these discussions given in Appendix D, along with feedback from the professional bodies that accredit the different undergraduate courses taking part in the MDP and the view of the Brunel Placement and Careers Office. A list of conclusions is then given, drawn up to reflect the aspects of the MDP that need improvement, to be used as input to the development of the MDP for the coming academic year. Collation of the survey data, follow‐up discussions with students and initial preparation of this report were conducted by Dianna Reid, with funding provided by the Brunel Academic Practice and Development Unit as part of a 2011 Learning and Teaching Innovation Fund award under project code 2LA026

Proton irradiation of e2v technologies L3Vision devices

This paper describes the proton irradiation and subsequent analysis of 8 e2v technologies CCD65 L3Vision devices with the intention of assessing the suitability of L3Vision technology to applications in space. In particular the use of L3Vision charge coupled devices (CCDs) on the Radial Velocity Spectrometer (RVS) instrument of the planned European Space Agency GAIA mission is discussed. The operational properties of the devices were characterised before irradiation with protons to a 10 MeV equivalent fluence of 2.5 × 109 protons cm-2. The devices were then characterised again before undergoing a second proton irradiation which increased the total 10 MeV equivalent proton fluence received by each device to 2.1 × 1010 protons cm-2. All 8 devices functioned as expected after each irradiation, with no catastrophic failures occurring even after the second irradiation which increased the total proton fluence to approximately 10 times the expected 6 year RVS fluence

Random telegraph signals in charge coupled devices

An investigation of fluctuating pixels resulting from proton irradiation of an E2V Technologies CCD47-20 device is presented. The device structure,experimental set up and irradiation methodology are described, followed by a detailed analysis of radiation induced random telegraph signals,RTS. The characteristics of the observed flickering pixels are discussed in detail and the proposed models explaining the mechanism behind the phenomena are viewed in light of the collected data

The effect of protons on E2V technologies L3Vision CCDs

The effect of different 10 MeV equivalent proton fluences on the performance of E2V Technologies (formerly Marconi applied technologies, formerly EEV) L3Vision Charge Coupled Devices (CCDs) was investigated. The first experimental radiation damage results of the L3Vision device are presented, with emphasis given to the analysis of damage to the gain register of the device. Changes in dark current and generation of bright pixels in the CCD image, store, readout register and gain register as a result of proton irradiation are reported and viewed in light of the potential use of the device in space-based applications

Proton irradiation of EMCCDs

This paper describes the irradiation of 95 electron multiplication charge coupled devices (EMCCDs) at the Paul Scherrer Institut (PSI) in Switzerland, to investigate the effects of proton irradiation on the operational characteristics of CCDs featuring electron multiplication technology for space use. This work was carried out in support of the CCD development for the radial velocity spectrometer (RVS) instrument of the European Space Agency's cornerstone Gaia mission. Previous proton irradiations of EMCCDs, have shown the technology to be radiation hard to /spl sim/10/spl times/ the required six-year Gaia lifetime proton fluence, with no device failures or unexpected operational changes. The purpose of the study described in this paper was to further investigate the statistical probability of device failure as a result of radiation damage, the large number of devices and high proton fluence used, making the study equivalent to testing /spl sim/50 complete RVS CCD focal planes to the expected end of life proton dose. An outline of the earlier EMCCD proton irradiations is given, followed by a detailed description of the proton irradiation and characterization of the 95 devices used in this latest study

The correlation between RAE ratings and citation counts in psychology

We counted the citations received in one year (1998) by each staff member in each of 38 university psychology departments in the United Kingdom. We then averaged these counts across individuals within each department and correlated the averages with the Research Assessment Exercise (RAE) grades awarded to the same departments in 1996 and 2001. The correlations were extremely high (up to +0.91). This suggests that whatever the merits and demerits of the RAE process and citation counting as methods of evaluating research quality, the two approaches measure broadly the same thing. Since citation counting is both more cost-effective and more transparent than the present system and gives similar results, there is a prima facie case for incorporating citation counts into the process, either alone or in conjunction with other measures. Some of the limitations of citation counting are discussed and some methods for minimising these are proposed. Many of the factors that dictate caution in judging individuals by their citations tend to average out when whole departments are compared

Spatiotemporal variation of methane and other trace hydrocarbon concentrations in the valley of Mexico

Mexico City is the world's largest and most polluted urban center. We examine the distribution of methane and other hydrocarbons within the Valley of Mexico, using it as a model for the role developing megacities will play in the next century of geochemical cycling. Seventy-five whole air samples were analyzed with multivariate statistical techniques, including factor analysis using principal components. Methane concentrations are highly variable in space and time, due to air circulations and source distribution. Landfills and open sewage canals are major inputs. Emissions into and out from the valley are modeled to be ∼515 t per day. Per capita emission is 0.01 t per annum per person, consistent with the global average for human related anaerobic generation. Natural gas leaks are small, and likely to be higher in other developing megacities; Mexican natural gas use has been discouraged out of earthquake safety concerns. In contrast, liquefied petroleum gas loss constitutes the major emission of propane and butane estimated at a leak rate of 5-10%. Kyoto and other environmental conventions have ignored methane as a greenhouse gas. Our analysis underscores the need to consider methane and other hydrocarbons, and the urbanization process, in future emission protocols. © 2002 Elsevier Science Ltd. All rights reserved

Proton induced leakage current in CCDs

The effect of different proton fluences on the performance of two E2V Technologies CCD47-20 devices was investigated with particular emphasis given to the analysis of 'random telegraph signal' (RTS) generation, bright pixel generation and induced changes in base dark current level. The results show that bright pixel frequency increases as the mean energy of the proton beam is increased, and that the base dark current level after irradiation scales with the level of ionization damage. For the RTS study, 500 pixels on one device were monitored over a twelve hour period. This data set revealed a number of distinct types of pixel change level fluctuation and a system of classification has been devised. Previously published RTS data is discussed and reviewed in light of the new data

Nonmethane hydrocarbon and halocarbon distributions during Atlantic Stratocumulus Transition Experiment/Marine Aerosol and Gas Exchange, June 1992

Aircraft measurements of selected nonmethane hydrocarbon and halocarbon species were made in the lower troposphere of the NE Atlantic near the Azores, Portugal, during June 1992 as part of the Atlantic Stratocumulus Transition Experiment/Marine Aerosol and Gas Exchange. In this paper, the impact of continental outflow from both Europe and North America on the study region were assessed. Four main air mass types were characterized from trajectories and trace gas concentrations: clean marine from the Atlantic, and continental air from the Iberian Peninsula, the British Isles and Northern Europe, and North America. Each classification exhibited trace gas concentrations that had been modified en route by photochemical processes and mixing. Comparison with the clean marine boundary layer (MBL) shows that the boundary layer of the predominantly continental air masses were enhanced in hydrocarbons and halocarbons by factors of approximately 2 for ethane, 5 for propane, 2-6 for ethyne and benzene, and 2-3 for C2Cl4. The same air masses also exhibited large ozone enhancements, with 2 to 3 times higher mixing ratios in the continental boundary layer air compared to the clean MBL. This indicates a primarily anthropogenic photochemical source for a significant fraction of the lower tropospheric ozone in this region. Methyl bromide exhibited on average 10-20% higher concentrations in the boundary layer affected by continental outflow than in the clean MBL, and was seen to be enhanced in individual plumes of air of continental origin. This is consistent with significant anthropogenic sources for methyl bromide. In addition, median MBL concentrations of ethene and methyl iodide showed enhancements of approximately a factor of 2 above free tropospheric values, suggesting primarily coastal/oceanic sources for these species. Copyright 1996 by the American Geophysical Union