Browsing University of Hertfordshire by Title
Now showing items 14171-14190 of 24086
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Modelling risk of readmission with phase-type distribution and transition models
(2009)A patient with frequent past readmissions may have an increased risk of future readmission. The principal objective of this paper was to determine the risk of readmission, given individual patient's history of readmissions. ... -
Modelling seedling growth rates of 18 temperate arable weed species as a function of the environment and plant traits
(2004-06)Background and Aims: The early growth rate of seedlings in the exponential phase is an important ecophysiological trait in crop/weed competition models based on assessments of relative weed green area. An understanding of ... -
Modelling stigmergic gene transfer
(MIT Press, 2008)We consider an information-theoretic model studying the conditions when a separation between the dynamics of a ’proto-cell’ and its proto-symbolic representation becomes beneficial in terms of preserving the proto-cell’s ... -
A Modelling Study of Road Traffic Contributions to Ambient PM2.5 Concentrations in Lagos
(2019-10-30)As the fastest growing city in Africa, Lagos experiences extremely high levels of air pollution. While there are many sources of air pollution in Lagos, road traffic has been widely reported as the most prominent. Due to ... -
Modelling superscalar pipelines with finite state machines
(University of Hertfordshire, 1993)We are currently examining the use of Finite State Machines to model processor pipelines. Our aim is to discover the extent to which the complexities of modern superscalar pipelines are amenable to theoretical modelling. ... -
Modelling techniques for object-oriented design
(University of Hertfordshire, 1991)It is increasingly recognised that an object-oriented approach offers the most promising way forward for the design and production of software systems. In this paper we adopt this point of view, and discuss a problem which ... -
Modelling TeV gamma-ray emission from the kiloparsec-scale jets of Centaurus A and M87
(2011-03-09)The widespread detection of synchrotron X-ray emission from the jets of low-power, nearby radio galaxies implies the presence of electrons at and above TeV energies. In this paper we explore the possibility that the TeV ... -
Modelling the control of calcium oscillations by phosphorylation of metabotropic glutamate receptors
(PLENUM PRESS DIV PLENUM PUBLISHING CORP, 1998) -
Modelling the daily progress of light leaf spot epidemics on winter oilseed rape (Brassica napus), in relation to Pyrenopeziza brassicae inoculum concentrations and weather factors
(2002-02-15)The progress of light leaf spot (Pyrenopeziza brassicae) epidemics on winter oilseed rape was monitored in 1998/99 and 1999/2000 at Rothamsted, and weather factors and P. brassicae ascospore concentrations were recorded ... -
Modelling the dispersion of flashing jets using CFD
(2008-06-15)Risk assessments related to industrial environments where gas is kept in liquid form under high pressure rely on the results from predictive tools. Computational Fluid Dynamics (CFD) is one such predictive tool and it is ... -
Modelling the dispersion of particle numbers in five European cities
(2016-02-04)We present an overview of the modelling of particle number concentrations (PNCs) in five major European cities, namely Helsinki, Oslo, London, Rotterdam, and Athens, in 2008. Novel emission inventories of particle numbers ... -
Modelling the Effects of Friction on Tool-Chip Interface Temperature During Orthogonal Cutting of Al6061-T6 Aluminium Alloy
(IEOM Society International, 2019-03-07)In this work, finite element simulations based on the analytical model derived with the MATLAB software were used to establish the temperature fields within the cutting tool and tool-chip interface. The average tool-chip ... -
Modelling the effects of temperature and wetness duration on development of light leaf spot on oilseed rape leaves inoculated with Pyrenopeziza brassicae conidia
(2001-02)A model was developed to describe the effects of temperature and leaf wetness duration in controlled-environment experiments on the development of light leaf spot on oilseed rape (cv. Bristol) leaves inoculated with ... -
Modelling the machining dynamics of peripheral milling
(2005)The machining dynamics involves the dynamic cutting forces, the structural modal analysis of a cutting system, the vibrations of the cutter and workpiece, and their correlation. This paper presents a new approach modelling ... -
Modelling the millimetre-infrared flaring behaviour of the quasar 1253-055 (3C279)
(1995)The infrared through millimetre light curve of 3C279 is investigated for the period of 1986 until mid-1994, during which time several flares were observed. A quiescent spectrum (identified with emission from an underlying ... -
Modelling the neonatal system: A joint analysis of length of stay and patient pathways
(2019-11-27)In the United Kingdom, one in seven babies require specialist neonatal care after birth, with a noticeable increase in demand. Coupled with budgeting constraints and lack of investment means that neonatal units are struggling. ... -
Modelling the number density of H$ emitters for future spectroscopic near-IR space missions
(2016-06-01)Context. The future space missions Euclid and WFIRST-AFTA will use the Hα emission line to measure the redshifts of tens of millions of galaxies. The Hα luminosity function at z> 0.7 is one of the major sources of uncertainty ... -
Modelling the oral cavity : In vitro and in vivo evaluations of buccal drug delivery systems
(2012-08)The delivery of drugs through the buccal mucosa has attracted much research interest over the past two decades and numerous approaches, both conventional and complex, have been developed in an attempt to deliver a variety ...