Browsing School of Technology by Issue Date
Now showing items 161-180 of 369
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Technological roots and structural implications of the double bubble at the turn of the Century
(CFAP, Cambridge Judge Business School, University of Cambridge, 2009-04)This paper argues that the two boom and bust episodes of the turn of the Century – the Internet mania and crash of 1990s and the easy liquidity boom and bust of 2000s– are two distinct components of a single structural ...
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New Evidence on Taxes and Portfolio Choices
(CFAP, Cambridge Judge Business School, University of Cambridge, 2009-05)Identifying the effect of differential taxation on portfolio allocation requires exogenous variation in marginal tax rates. Marginal tax rates vary with income, but income surely affects portfolio choice directly. In systems ...
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Flame in methane jet after spark ignition
(2009-05-21)The video shows the flame motion following spark ignition in a turbulent methane jet. The flow conditions were: 30% air, 70% CH4, jet velocity 12.5m/s & 25m/s, framing rate 4200 fps, spark at r=0, z=40d (40 jet diameters; ...
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Ignition of bluff-body methane flames
(2009-05-21)The movies show the ignition process following a spark in a bluff-body stabilised methane non-premixed flame. The flow is described in: S.F. Ahmed, R. Balachandran, T. Marchione, E. Mastorakos, Spark ignition of turbulent ...
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Autoignition of a H2 jet in hot air flow
(2009-05-21)The movie (taken with a conventional video camera at 30fps) shows the various operation modes of the Cambridge Autoignition experiment, described in: C.N. Markides, E. Mastorakos, An experimental study of hydrogen ...
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Ignition of spray flame with multiple spark
(2009-05-25)The movies have been taken at 4000 fps. The spark is placed at a distance z from the nozzle and at 5mm from the enclosure. The ignition unit delivers at 100Hz a spark lasting 8ms, followed by 2ms of no activity. The front ...
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Minimizing Detection Probability Routing in Ad Hoc Networks Using Directional Antennas
(2009-06-08)In a hostile environment, it is important for a transmitter to make its wireless transmission invisible to adversaries because an adversary can detect the transmitter if the received power at its antennas is strong enough. ...
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Multistable and morphing corrugated shell structures
(University of CambridgeDepartment of EngineeringChrist's College, 2009-06-09)'Compliant' structures, i. e., structures that undergo large deformations as part of their normal behaviour, can perform the function of a complex mechanism with just a single, or very few, components. When multistability ...
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Supporting material for the paper 'Automated Modelling of Evolving Discontinuities'
(2009-07-23)This computer code is in support of the paper 'Automated Modelling of Evolving Discontinuities' by Mehdi Nikbakht and Garth N. Wells in the journal Algorithms.
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R/BHC: fast Bayesian hierarchical clustering for microarray data
(BMC Bioinformatics 2009, 2009-08-06)Abstract Background Although the use of clustering methods has rapidly become one of the standard computational approaches in the literature of microarray gene expression data analysis, little attention has been paid to ...
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The P3 platform: an approach and software system for developing diagrammatic model-based methods in design research
(Proceedings of the 17th International Conference on Engineering Design' ICED '09, Vol.1: Design ProcessesProceedings of the 17th International Conference on Engineering Design' ICED '09, Vol.1: Design Processes, 2009-08-24)Many issues in design and design management have been explored by building models which capture the relationships between different aspects of the problem at hand. These models require computer support to construct and ...
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Design project planning, monitoring and re-planning through process simulation
(Proceedings of ICED'09 - Design ProcessesProceedings of ICED'09 - Design Processes, 2009-08-24)Effective management of design schedules is a major concern in industry, since timely project delivery can have a significant influence on a company’s profitability. Based on insights gained through a case study of planning ...
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Contact and channel modelling to support the early design of technical systems
(Proceedings of the 17th International Conference on Engineering Design' ICED'09, Vol 5: Design Methods and Tools, Part 1Proceedings of the 17th International Conference on Engineering Design' ICED'09, Vol 5: Design Methods and Tools, Part 1, 2009-08-24)The early design of mechanical systems is critical because it constrains options later in the design process. In this early stage of the design process, designers must consider customer requirements, how they are related ...
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A formulation of the autoregressive HMM for speech synthesis
(Department of Engineering, University of Cambridge, 2009-08-31)We present a formulation of the autoregressive HMM for speech synthesis and compare it to the standard HMM synthesis framework and the trajectory HMM. We give details of how to do efficient parameter estimation and synthesis ...
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The first step in the development of text mining technology for cancer risk assessment: identifying and organizing scientific evidence in risk assessment literature
(2009-09-22)Abstract Background One of the most neglected areas of biomedical Text Mining (TM) is the development of systems based on carefully assessed user needs. We have recently investigated the user needs of an important task yet ...
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Trends in modeling Biomedical Complex Systems
(2009-10-15)Abstract In this paper we provide an introduction to the techniques for multi-scale complex biological systems, from the single bio-molecule to the cell, combining theoretical modeling, experiments, informatics tools and ...
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The Development of a Set of Principles for Through-Life Management of Engineering Information
(Engineering Design Centre, Department of Engineering, University of Cambridge, 2009-10-26)Corporate business models are shifting away from product delivery paradigms to product-service paradigms, where ongoing through-life service support is preeminent. In the UK, a Grand Challenge project (www.kimproject.org) ...
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Supporting material for the paper 'Analysis of an interface stabilised finite element method: The advection-diffusion-reaction equation'
(2009-10-28)This solver is in support of the paper 'Analysis of an interface stabilised finite element method: The advection-diffusion-reaction equation', by Garth N. Wells
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Analysis of an interface stabilised finite element method: The advection-diffusion-reaction equation
(2009-10-29)Analysis of an interface stabilised finite element method for the scalar advection-diffusion-reaction equation is presented. The method inherits attractive properties of both continuous and discontinuous Galerkin methods, ...