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Dissertations / Theses on the topic 'Impact – Mathematical models'

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Published: 4 June 2021

Last updated: 29 January 2023

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1

Moore, Matthew Richard. "New mathematical models for splash dynamics." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:c94ff7f2-296a-4f13-b04b-e9696eda9047.

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In this thesis, we derive, extend and generalise various aspects of impact theory and splash dynamics. Our methods throughout will involve isolating small parameters in our models, which we can utilise using the language of matched asymptotics. In Chapter 1 we briefly motivate the field of impact theory and outline the structure of the thesis. In Chapter 2, we give a detailed review of classical small-deadrise water entry, Wagner theory, in both two and three dimensions, highlighting the key results that we will use in our extensions of the theory. We study oblique water entry in Chapter 3, in

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Banan, Roshan Aerospace Civil &amp Mechanical Engineering Australian Defence Force Academy UNSW. "An engineering approach to modelling ballistic impact on hybrid polymer laminates." Publisher:University of New South Wales - Australian Defence Force Academy. Information Technology & Electrical Engineering, 2009. http://handle.unsw.edu.au/1959.4/44094.

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Hybrid polymer laminates of polycarbonate and PMMA have generated considerable interest among researchers as an alternative to traditional glass armours because of their potential for reduced cost and weight. Generally, the development of ballistic armour is carried out experimentally which is an expensive task in terms of time and cost. Numerical simulation provides a much greater facility to understand the phenomenon of ballistic impact and the effects of various parameters on the response to such impact. In addition it provides an easy means of comparing the impact performance of different

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Nicholls, Rochelle Louise. "Mathematical modelling of bat-ball impact in baseball." University of Western Australia. School of Human Movement and Exercise Science, 2003. http://theses.library.uwa.edu.au/adt-WU2004.0016.

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[Formulae and special characters can only be approximated here. Please see the pdf version of the abstract for an accurate reproduction.] Ball-impact injuries in baseball, while relatively rare, have the potential to be catastrophic. These injuries are primarily attributed to impact by the ball after it has been hit, pitched or thrown. As the closest infielder to the hitter, the pitcher is at greatest risk of being struck by the batted ball. This thesis investigated the influence of bat and ball design on ball exit velocity (BEV) and the potential for impact injury to pitchers. Finite elemen

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Wilson, Stephen K. "The mathematics of ship slamming." Thesis, University of Oxford, 1989. http://ora.ox.ac.uk/objects/uuid:7bc325cf-e6a1-45d2-add2-100d9968354c.

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Motivated by the motion of a ship in a heavy sea, a mathematical model for the vertical impact of a two-dimensional solid body onto a half-space of quiescent, inviscid, incompressible fluid is formulated. No solutions to the full problem are known, but in the case when the impacting body has small deadrise angle (meaning that the angle between the tangent to the profile and the horizontal is everywhere small) a uniformly valid solution is obtained by using the method of matched asymptotic expansions. The pressure on the body is calculated and is in fair agreement with experimental results. The

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Modarres, Najafabadi Seyed Ali. "Dynamics modelling and analysis of impact in multibody systems." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115886.

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In this thesis, we discuss a novel approach to the dynamics modelling and analysis of impact in unilaterally constrained multibody systems. This approach is based on an analysis of energy absorption and restitution during impact, using a decomposition technique, which decouples the kinetic energy associated with the spaces of admissible and constrained motions of unilateral contacts. This is done based on the decomposition of the tangent space of the configuration manifold at the pre-impact instant. The decomposition of the kinetic energy can provide a picture of how the energy absorption and

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Lepage, Thomas. "The impact of variable evolutionary rates on phylogenetic inference : a Bayesian approach." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103264.

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In this dissertation, we explore the effect of variable evolutionary rates on phylogenetic inference. In the first half of the thesis are introduced the biological fundamentals and the statistical framework that will be used throughout the thesis. The basic concepts in phylogenetics and an overview of Bayesian inference are presented in Chapter 1. In Chapter 2, we survey the models that are already used for rate variation. We argue that the CIR process---a diffusion process widely used in finance---is the best suited for applications in phylogenetics, for both mathematical and computational re

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Baggaley, Rebecca Frances. "The impact of antiretroviral use in resource-poor settings : insights from mathematical models." Thesis, Imperial College London, 2006. http://hdl.handle.net/10044/1/11778.

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Movahedi-Lankarani, Hamid. "Canonical equations of motion and estimation of parameters in the analysis of impact problems." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184490.

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The transient dynamic analysis of constrained mechanical systems may require the solution of a mixed set of algebraic and differential equations of motion. The usual formulation of these equations is expressed in terms of the accelerations of the system components. A canonical form of the equations of motion in terms of the system velocities and the time derivative of the system momenta may be used instead. This is a natural form of the equations in which all the state variables are explicitly expressed, and have the same physical importance. The numerical solution obtained from the canonical

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Njagarah, Hatson John Boscoh. "Modelling water-borne infections : the impact of hygiene, metapopulation movements and the biological control of cholera." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95972.

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Thesis (PhD)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Water-borne infections have been a menace in many countries around the globe, claiming millions of lives. Cholera in particular has spread to all continents and now on its seventh epidemic. Although control measures have been continually developed through sanitation, vaccination and rehydration, the infection still devastates populations whenever there is an outbreak. In this research work, mathematical models for cholera transmission dynamics with focus on the impact of sanitation and hygiene, metapopulation spread, optima

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Shepard, William Steve Jr. "The impact of attached feature scales and spatial distributions on the response of structural-acoustic systems." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/18911.

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11

Ddumba, Hassan. "Repulsive-attractive models for the impact of two predators on prey species varying in anti-predator response." Thesis, Nelson Mandela Metropolitan University, 2011. http://hdl.handle.net/10948/d1010995.

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This study considers the dynamical interaction of two predatory carnivores (Lions (Panthera leo) and Spotted Hyaenas (Crocuta crocuta)) and three of their common prey (Buffalo (Syncerus caffer), Warthog (Phacochoerus africanus) and Kudu (Tragelaphus strepsiceros)). The dependence on spatial structure of species’ interaction stimulated the author to formulate reaction-diffusion models to explain the dynamics of predator-prey relationships in ecology. These models were used to predict and explain the effect of threshold populations, predator additional food and prey refuge on the general species

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Duhaut, Thomas H. A. "Wind-driven circulation : impact of a surface velocity dependent wind stress." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101117.

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The use of an ocean surface velocity dependent wind stress is examined in the context of a 3-layer double-gyre quasigeostrophic wind-driven ocean circulation model. The new wind stress formulation results in a large reduction of the power input by the wind into the oceanic circulation. This wind stress is proportional to a quadratic function of Ua--u o, where Ua is the wind at 10m above the ocean surface and uo is the ocean surface current. Because the winds are typically faster than the ocean currents, the impact of the ocean surface velocity on the wind stress itself is relatively small. How

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Kirkpatrick, Raelene. "A mathematical analysis of the financial and medical impact of hepatitis C among drug users in Perth, Western Australia." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2003. https://ro.ecu.edu.au/theses/1332.

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The ability of public health planners continues to be hampered by uncertainties encountered with transmissible diseases. Key epidemiological factors such as, how many Western Australian injecting drug users are hepatitis C seropositive or will become infected, duration of intravenous drug use, the intensity of infection, the fraction of those infected that will develop end-stage disease and after how long a period, all combine to limit the ability of a mathematical model to predict future trends. These models can, however, provide information about certain epidemiological parameters and identi

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Denholm, Scott J. "Mathematical models for investigating the long-term impact of Gyrodactylus salaris infections on Atlantic salmon populations." Thesis, University of Stirling, 2013. http://hdl.handle.net/1893/17021.

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Gyrodactylus salaris Malmberg, 1957, is a notifiable freshwater ecto-parasite that infects both wild and farmed populations of Atlantic salmon (Salmo salar, L.). It has caused catastrophic damage to wild salmon stocks in Norway since its accidental introduction in 1975, reducing salmon density in some rivers by 98% over a period of five years. It is estimated that G. salaris has cost the Norwegian salmon industry more than 500 million EUR. Currently the UK has G. salaris free status under EU law, however, it is believed that if G. salaris emerged in the UK the impact would be similar to that w

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Worton, Adrian J. "Using mathematical models to understand the impact of climate change on tick-borne infections across Scotland." Thesis, University of Stirling, 2016. http://hdl.handle.net/1893/24918.

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Ticks are of global interest as the pathogens they spread can cause diseases that are of importance to both human health and economies. In Scotland, the most populous tick species is the sheep tick Ixodes ricinus, which is the vector of pathogens causing diseases such as Lyme borreliosis and Louping-ill. Recently, both the density and spread of I. ricinus ticks have grown across much of Europe, including Scotland, increasing disease risk. Due to the nature of the tick lifecycle they are particularly dependent on environmental factors, including temperature and habitat type. Because of this, th

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Zeng, Ning. "Climatic impact of Amazon deforestation: A study of underlying mechanism through simple modeling." Diss., The University of Arizona, 1994. http://hdl.handle.net/10150/186999.

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An intermediate level model for tropical climatology including atmosphere-land-ocean interaction is developed. The model contains basically linearized steady state primitive equations with simplified thermodynamics. A simple hydrological cycle is also included. Special attention has been paid to land surface processes in attempting to study climate change caused by Amazon deforestation. In comparison with previous simple modeling work on tropical climatology or anomaly, the present model is more sophisticated in the sense that it predicts all the important meteorological variables with little

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Clements, Adam. "The impact and measurement of the intensity of noise in stock returns." Thesis, Queensland University of Technology, 2002.

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The development of financial economics literature has been characterised by a continual dialogue between empirical and theoretical researchers. Often, this dialogue has taken the form of empirical observation prompting theoretical enquiry. This thesis follows this long tradition by investigating a number of emerging empirical facts, for which in most cases, simple theoretical explanations are suggested. Broadly speaking, this thesis investigates the manner in which the level of activity in an asset market influences the empirical features exhibited by the asset's returns. Motivated by these em

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Zhao, Chun. "Impact of convection and lightning on the tropospheric chemistry composition over North America and air quality studies over East Asia." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28114.

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Thesis (M. S.)--Earth and Atmospheric Sciences, Georgia Institute of Technology, 2009.<br>Committee Chair: Yuhang Wang; Committee Member: Armistead Russell; Committee Member: Athanasios Nenes; Committee Member: Greg Huey; Committee Member: Judith Curry.

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Nault, Barrie R. "Modelling strategic information technology impact on inter-firm competition: pricing." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30787.

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This research studies normative pricing strategies for information technology (IT) used by suppliers to supplement an underlying primary good. Transactions with consumers and customer firms are considered. Characteristics of IT are divided into IT impacts on customers, and IT impacts on suppliers. IT impacts on customers include vertical differentiation or reduced turnover costs for the primary good, and positive IT adoption costs. IT impacts on suppliers include reduced production costs for the primary good, and the costs of IT. Optimal pricing for the IT and the primary good is modelled for

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Fahy, Benjamin. "Evaluating the Impact and Distribution of Stormwater Green Infrastructure on Watershed Outflow." PDXScholar, 2019. https://pdxscholar.library.pdx.edu/open_access_etds/4732.

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Green Stormwater Infrastructure (GSI) has become a popular method for flood mitigation as it can prevent runoff from entering streams during heavy precipitation. In this study, a recently developed neighborhood in Gresham, Oregon hosts a comparison of various GSI projects on runoff dynamics. The study site includes dispersed GSI (rain gardens, retention chambers, green streets) and centralized GSI (bioswales, detention ponds, detention pipes). For the 2017-2018 water year, hourly rainfall and observed discharge data is used to calibrate the EPA's Stormwater Management Model to simulate rainfal

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Spilotros, Asia. "The Impact of Implementing Different Cordon Size Designs on Land Use Patterns in Portland, OR." PDXScholar, 2019. https://pdxscholar.library.pdx.edu/open_access_etds/5095.

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The purpose of this research dissertation is to compare the effects of using small, medium, and large cordon designs in road tolling on residential and commercial neighborhoods in Portland, Oregon. Changes in land use patterns are assessed by comparing the projected output of each cordon scenario to a "no toll" alternative in 2035. The performance of each cordon design is tested using two different prices ($1.65 and $8) and compared to a default scenario 25 years after the initial implementation in MetroScope's year 0, 2010. The following areas embedded within the cordon perimeter were conside

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Rasolofoson, Faraniaina. "A comparative study on the impact of different fluxes in a discontinuous Galerkin scheme for the 2D shallow water equations." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86610.

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Thesis (MSc)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Shallow water equations (SWEs) are a set of hyperbolic partial differential equations that describe the flow below a pressure surface in a fluid. They are widely applicable in the domain of fluid dynamics. To meet the needs of engineers working on the area of fluid dynamics, a method known as spectral/hp element method has been developed which is a scheme that can be used with complicated geometry. The use of discontinuous Galerkin (DG) discretisation permits discontinuity of the numerical solution to exist at inter-elemen

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Aboagye-Sarfo, Patrick. "Time series analysis of HIV incidence cases in Ghana : trends, predictions and impact of interventions." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2009. https://ro.ecu.edu.au/theses/1889.

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The HIV/AIDS epidemic is one of the world’s leading causes of death, particularly in sub-Saharan African nations like Ghana, and threatens socio-economic development in many developing countries. In this thesis Ghanaian HIV data, comprising monthly number of serologically confirmed reported new HIV cases since 1996, was subdivided into northern and southern sectors based on the geographical location of the ten administrative regions. Potential bias in the collection is considered given the strategic location of the two specialist teaching hospital, one in each sector, which receive referrals f

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Fiorentino, Francesca. "Mathematical models of the impact of rabbit calicivirus disease (RCD) on the European rabbit, Oryctolagus cuniculus, in Australia." Thesis, University College London (University of London), 2004. http://discovery.ucl.ac.uk/1446810/.

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This thesis relates to the work of building a mathematical model of the impact of Rabbit Calicivirus Disease (RCD) on the European Rabbit, Oryctolagus cuniculus, in Australia. After introducing the general biology of rabbits and the immunology of RCD, we build a time-dependent single site model. We construct a single-site population dynamic model with age structure, seasonal birth rate, density dependent regulation of the population size and climatic variability for various regions of Australia. After investigating suitable parameter ranges, we incorporate the disease dynamics through an indir

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Bruce, Faikah. "Understanding the impact of an HIV intervention package for adolescents." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85666.

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Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Adolescents are regarded as a high risk group in South Africa with the highest human immunodeficiency virus (HIV) incidence occurring in this group. Prevention among adolescents is therefore a key in decreasing the HIV burden. This thesis aims to assist in the design of trials by simulating the potential outcomes of a combination prevention trial in adolescents. We develop a stochastic individual-based model stratified by sex and age. We then use this model to determine the impact of various prevention packages on HIV inci

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Healy, William M. "Modeling the impact of a liquid droplet on a solid surface." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/16737.

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Coyne, Alice Elizabeth. "The impact of estimation frequency on Value at Risk (VaR) and Expected Shortfall (ES) forecasts: an empirical study on conditional extreme value models." Master's thesis, Faculty of Science, 2021. http://hdl.handle.net/11427/32558.

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This study investigates extreme market events which occur in the tails of a distribution. The extreme events occur with a very low probability, but with significant consequences, which is what makes them of interest. In this study 20 years of data from both the S&P 500 and the JSE All Share index have been used. An extreme value approach has been taken to quantify the risks associated with extreme market events. To achieve this a two phased process is used to calculated the Value at Risk and Expected Shortfall. The first phase involved running the daily returns through the GARCH model, and the

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Chan, Shu-ning, and 陳樹寧. "Impact of river training on the hydraulics and sediment transport of Shenzhen River." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43572194.

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Njagarah, Hatson John Boscoh. "Modelling the role of amelioration and drug lords on drug epidemics and the impact of substance abuse on the dynamics of HIV/AIDS." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17935.

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Thesis (MSc)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: Substance abuse is an imminent danger on the health of both substance users and nonusers. In general, abuse of psychoactive substances is associated with high risk behaviour, mortality and morbidity. The drug use cycle involves inextricably intertwined variants such as production, trading and usage of both licit and illicit addictive substances. The dynamics of substance use involve initiation, addiction, rehabilitation/treatment and quitting/ recovery. In response to supply and abuse of monster drugs, control strategies su

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Prestes, Manoel Fernando Biagioni 1963. "Dispersão de material impactante em meio aquático = modelo matemático, aproximação numérica e simulação computacional - Lagoa do Taquaral, Campinas, SP." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/307272.

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Orientador: João Frederico da Costa Azevedo Meyer<br>Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Instituto de Matemática, Estatística e Computação Científica<br>Made available in DSpace on 2018-08-19T09:35:38Z (GMT). No. of bitstreams: 1 Prestes_ManoelFernandoBiagioni_M.pdf: 6775504 bytes, checksum: 58bb4307baf12ee09b0deeae72c3c8c9 (MD5) Previous issue date: 2011<br>Resumo Este estudo visa descrever a evolução de material impactante na Lagoa do Taquaral, tendo sido inclusive apresentada inicialmente, uma descrição desse meio aquático, enfatizando-se os aspectos h

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Corley, Courtney D. "Modeling the Impact and Intervention of a Sexually Transmitted Disease: Human Papilloma Virus." Thesis, University of North Texas, 2006. https://digital.library.unt.edu/ark:/67531/metadc5289/.

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Many human papilloma virus (HPV) types are sexually transmitted and HPV DNA types 16, 18, 31, and 45 account for more than 75% if all cervical dysplasia. Candidate vaccines are successfully completing US Federal Drug Agency (FDA) phase III testing and several drug companies are in licensing arbitration. Once this vaccine become available it is unlikely that 100% vaccination coverage will be probable; hence, the need for vaccination strategies that will have the greatest reduction on the endemic prevalence of HPV. This thesis introduces two discrete-time models for evaluating the effect of d

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Bagntasarian, Anachit. "The impact of CEO compensation, analysts' characteristics, earnings management and country governability on analysts' earnings forecasts." Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/76656/.

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This thesis examines the impact of CEO compensation, analysts' characteristics, earnings management and country governability on the accuracy of analysts' earnings forecasts. In summary, the thesis includes the following chapters: Firstly, Chapter 2 examines the interplay between CEO compensation and analysts' forecast errors over different forecasting horizons. A unique analyst-level sample for U.S. firms covering the period between 1992 and 2015 has been employed. Evidence obtained from this analysis suggests that CEO compensation, measured by various forms such as restricted stock holdings

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Abdolmaleki, Kourosh. "Modelling of wave impact on offshore structures." University of Western Australia. School of Mechanical Engineering, 2007. http://theses.library.uwa.edu.au/adt-WU2008.0055.

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[Truncated abstract] The hydrodynamics of wave impact on offshore structures is not well understood. Wave impacts often involve large deformations of water free-surface. Therefore, a wave impact problem is usually combined with a free-surface problem. The complexity is expanded when the body exposed to a wave impact is allowed to move. The nonlinear interactions between a moving body and fluid is a complicated process that has been a dilemma in the engineering design of offshore and coastal structures for a long time. This thesis used experimental and numerical means to develop further underst

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Lenane, Ian Joseph. "An investigation of mathematical models for spray droplet spreading on plant leaves with new results applicable to uniform, horizontal, solid surfaces." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/204179/1/Ian_Lenane_Thesis.pdf.

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This thesis presents a literature review of mathematical models developed to simulate the spreading of agrichemical spray droplets impacting on plant leaf surfaces. New results are derived to predict how far droplets will spread when deposited or sprayed perpendicularly onto a dry, uniform, horizontal, solid surface. The first part of the new research provides equations to predict the extent a sessile droplet will spread on these surfaces as well as its itemized energy budget. The second part examines scaling law formulae to predict the maximum spreading factor for droplets impacting the solid

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Dissanayake, I. A. J. K. "The impact of water deficit on the growth and yield performance of sesame (Sesamum indicum l.): Analysis through mathematical modelling." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/112360/1/Jinendra%20Kumari%20Dissanayake_Imaduwa%20Arachchige_Thesis.pdf.

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This thesis investigated the effect of drought stress on agronomical, and physiological characteristics of sesame plants during growth and development, and analysed such responses using Fuzzy set theory (FST) and Artificial Neural Networks (ANN), two mathematical modeling tools. Subjected to cultivar and developmental stages exposed to drought, tested sesame cultivar/s expressed versatile morphological adaptations and adjusted leaf osmotic potential as a drought tolerant mechanism to survive drought conditions. The thesis proposed FST models with various membership functions to describe germin

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Kumar, Arun. "Ground control ramifications and economic impact of retreat mining on room and pillar coal mines." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/49815.

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As the coal reserves at shallow depths become exhausted companies have to develop deeper deposits and increase percentage extraction to maintain production levels. Total extraction for room and pillar mines can only be achieved by pillar extraction. The unsupported roof increases during pillar extraction and hence the cost of ground control also increases. Nevertheless, pillar extraction where possible has many potential advantages such as decreased operating cost, increased utilization of reserves, and extended life of the mine. There are several variables such as depth, mining height, rock s

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Khalil, Adil. "Processing of laser speckle contrast images : study of mathematical models and use of nonlinear analyses to investigate the impact of aging on microvascular blood flow." Thesis, Angers, 2017. http://www.theses.fr/2017ANGE0006/document.

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Le vieillissement est un facteur de risque des maladies cardiovasculaires. Il est associé à des altérations fonctionnelles et structurelles du système vasculaire.Une étude approfondie du processus de vieillissement et le développement de systèmes d’imagerie et des traitements de données associés deviennent donc une priorité. Par l’analyse d’images de contraste par speckle laser (LSCI), l’objectif de cette thèse est d’étudier l’influence de l’âge sur la micro circulation.Pour ce faire, des données de LSCI ont été acquises sur l’avant-bras de sujets sains jeunes et âgés. A partir de modèles math

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Butler, Ailsa R. "Measles, mumps and rubella (MMR) immunisation programmes in Europe : analyses of the impact on the incidence of measles based on mathematical models of viral transmission dynamics." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249240.

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Niklewski, Jacek. "Multivariate GARCH and portfolio optimisation : a comparative study of the impact of applying alternative covariance methodologies." Thesis, Coventry University, 2014. http://curve.coventry.ac.uk/open/items/a8d7bf49-198d-49f2-9894-12e22ce2d7f1/1.

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This thesis investigates the impact of applying different covariance modelling techniques on the efficiency of asset portfolio performance. The scope of this thesis is limited to the exploration of theoretical aspects of portfolio optimisation rather than developing a useful tool for portfolio managers. Future work may entail taking the results from this work further and producing a more practical tool from a fund management perspective. The contributions made by this thesis to the knowledge of the subject are that it extends literature by applying a number of different covariance models to a

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Hove, Progress. "The impact of technological marketing on Porter's competitive forces model and SMEs' performance." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/d1007120.

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It is commonly understood that the adoption and development of technological marketing capabilities by firms provides them with immense opportunities to transform their business practices and strategies, so as to strategically position themselves in the market and enhance firm performance. Nevertheless, little attention has, thus far, been given to the empirical investigation of the impact of adopting and developing the technological marketing on Porter‟s five competitive forces and firm performance of SMEs. The principal objective of this study was to fill this void by investigating the influ

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Laws, Nathan. "A Parabolic Equation Analysis of the Underwater Noise Radiated by Impact Pile Driving." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1083.

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Impact pile driving can produce extremely high underwater sound levels, which are of increasing environmental concern due to their deleterious effects on marine wildlife. Prediction of underwater sound levels is important to the assessment and mitigation of the environmental impacts caused by pile driving. Current prediction methods are limited and do not account for the dynamic pile driving source, inhomogeneities in bathymetry and sediment, or physics-based sound wave propagation. In this thesis, a computational model is presented that analyzes and predicts the underwater noise radiated by p

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Lavor, Daniel Campos. "AvaliaÃÃo de impacto e formulaÃÃo de modelo para polÃtica educacional." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10727.

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nÃo hÃ<br>Em virtude da importÃncia atribuÃda Ã educaÃÃo como um dos maiores condutores do crescimento, e Ã grande variaÃÃo de impactos decorrentes das diferentes polÃticas educacionais, a educaÃÃo bÃsica mantem-se um tema ativo na agenda de pesquisadores, na busca do desenvolvimento de pesquisas teÃricas e empÃricas, em alternativas abordagens de tratamento. A CiÃncia EconÃmica tem contribuÃdo significativamente com novas abordagens metodolÃgicas na relaÃÃo entre as ideias e a implementaÃÃo de anÃlises empÃricas, atravÃs do uso intensivo de modelos matemÃticos explicativos. Inspirado nisso, e

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Gu, Chao. "Création d'un modèle inductifs de croissance de clusters industriels à flux optimisés, pour réduire leur impact sur l'environnement." Thesis, Le Havre, 2015. http://www.theses.fr/2015LEHA0013/document.

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L’écologie industrielle a pour objectif de résoudre les questions liées à l'utilisation des ressources technologiques dans les sociétés, dans le but d'ajouter à la partie des connaissances nécessaires pour commencer à évaluer les problèmes de qualité liés à l'environnement et les questions de disponibilité des ressources. Le concept d’écologie industrielle peut être réalisé et pratiqué à travers d’établissement des parcs éco-industriels. Un parc éco-industriel est une communauté de fabrication et de service des entreprises situées ensemble sur une propriété commune. Les membres cherchent la pe

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Romaniw, Yuriy. "An activity based method for sustainable manufacturing modeling and assessments in SysML." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34717.

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Traditionally, environmental impacts of man made products have been determined by performing a life cycle assessment (LCA) on the product. As the name implies, LCA is usually covers the entire life of the product in a so-called "cradle-to-grave" assessment. In determining environmental impacts over the whole product life, LCA's are reasonably adequate. However, in providing detailed impacts on a particular phase of life, LCA's are lacking. Detailed assessments are important because very few stakeholders have influence over a product during all phases of life. Stakeholders need detailed impact

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Schmid, Neset Tina-Simone. "Environmental imprint of human food consumption : Linköping, Sweden 1870-2000 /." Linköping : Department of Water and Environmental Studies, Linköping University, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-3592.

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Siddique, Sharif Rayhan. "Development of policies to ameliorate the environmental impact of cars in Perth City, using the results of a stated preference survey and air pollution modelling." University of Western Australia. Faculty of Business, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0165.

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[Truncated abstract] Air pollution is increasingly perceived to be a serious intangible threat to humanity, with air quality continuing to deteriorate in most urban areas. The main sources of inner city pollution are motor vehicles, which generate emissions from the tail pipe as well as by evaporation. These contain toxic gaseous components which have adverse health effects. The major components are carbon monoxide (CO), nitrogen dioxide (NO2), nitric oxide (NO), sulphur dioxide (SO2), particulates (PM10), and volatile organic compounds (VOC). CO and oxides of nitrogen (NOx) are major emission

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Winship, Arliss J. "Estimating the impact of bycatch and calculating bycatch limits to achieve conservation objectives as applied to harbour porpoise in the North Sea." Thesis, St Andrews, 2009. http://hdl.handle.net/10023/715.

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Bopf, Tara-Louise. "Mathematical modelling of worker interactions and the impact on workplace safety." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/104384/1/Tara-Louise_Bopf_Thesis.pdf.

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This research involves applying mathematical modelling techniques coupled with data on work and safety practices to investigate workplace safety programs and improvement strategies. The thesis investigated the potential impact of different safety intervention programs prior to their implementation within the workplace. As there was a lack of mathematical modelling of the interactions between workers and workplace safety intervention programs and how these interactions and programs impacted the safety of the worker while at work, this research presents mathematical models that may be used as a

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Chan, Hing-kai, and 陳慶佳. "Impacts of flexibility in delivery quantity and due date on supply chain dynamics." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B3857651X.

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McTaggart, Kevin Andrew. "Hydrodynamics and risk analysis of iceberg impacts with offshore structures." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/30733.

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The evaluation of design iceberg impact loads for offshore structures and the influence of hydrodynamic effects on impact loads are examined. Important hydrodynamic effects include iceberg added mass, wave-induced oscillatory iceberg motions, and the influence of a large structure on the surrounding flow field and subsequent velocities of approaching icebergs. The significance of these phenomena has been investigated using a two-body numerical diffraction model and through a series of experiments modelling the drift of various sized icebergs driven by waves and currents approaching a large of

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