Blar i Faculty of Mathematics and Natural Sciences på tittel
Viser treff 8851-8870 av 10008
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Study of leading hadrons in gluon and quark fragmentation
(Peer reviewed; Journal article, 2006-12)The study of quark jets in e+e− reactions at LEP has demonstrated that the hadronisation process is reproduced well by the Lund string model. However, our understanding of gluon fragmentation is less complete. In this study ... -
A study of mass reconstruction in Z°→τ+τ-
(Master thesis, 2010-05-28)Neutrinos escaping detection is one of the main problems in mass reconstruction with tau leptons. They must be neglected or corrected for in some way. This thesis discusses two methods of handling the neutrinos in different ... -
Study of meso-scale reversed flow events in the polar ionosphere by SuperDARN radars
(Master thesis, 2017-06-29)In this study we have investigated Reversed Flow Events (RFEs) in the northern hemisphere polar cap. A RFE is an ∼50-250 km wide flow channel that opposes the large scale background flow. A total of 57 new RFEs were ... -
Study of Near and Far Field Measurements for Underwater Ship Noise
(Master thesis, 2023-06-01) -
Study of Power Quality Improvement for Grid-Connected PV plant in Kilinochchi
(Master thesis, 2022-06-01) -
A study of refactorings during software change tasks
(Journal article; Peer reviewed, 2021)Developers frequently undertake software change tasks that could be partially or fully automated by refactoring tools. As has been reported by others, all too often, these refactoring steps are instead performed manually ... -
A study of ring-opening reactions of some di- and trihalogenated cyclopropanes
(Doctoral thesis, 2006-03-21) -
A study of rock lenses in extensional faults, focusing on factors controlling shapes and dimensions
(Master thesis, 2003)The intension of this work has been to investigate the factors controlling the shapes and dimensions of horses, including the type of mechanism active in their generation and development, position of the horses relative ... -
A study of selected problems related to accidental process fires
(Doctoral thesis, 2011-04-15)An experimental full scale characterization of a turbulent propane jet flame has been made in terms of temperatures and radiation. Sonic propane gas releases were achieved at steady pressure and near steady flow. Commercial ... -
A study of temperature profiles in ceiling jets under horizontal unconfined ceilings with the CFD tools FLACS and FDS
(Master thesis, 2017-06-22)The key to controlling accidental fires, is early detection by the correct placement of devices such as smoke detectors and sprinkler systems. Smoke is accompanied by a temperature rise, brought about by the ceiling jet ... -
A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole
(Peer reviewed; Journal article, 2011-02-23)The nature of b-quark jet hadronisation has been investigated using data taken at the Z peak by the DELPHI detector at LEP. Two complementarymethods are used to reconstruct the energy of weakly decaying b-hadrons, Eweak B ... -
A study of the Coriolis flowmeter as a reference instrument in multiphase flow
(Master thesis, 2015-09-11)The objective of this thesis was to investigate how a two-liquid mixture, and injected gas, affects the measurements of a Coriolis flowmeter. Furthermore it was of interest to investigate whether entrained gas could be ... -
Study of the dependence of direct soft photon production on the jet characteristics in hadronic Z0 decays
(Peer reviewed; Journal article, 2010-06-09)An analysis of the direct soft photon production rate as a function of the parent jet characteristics is presented, based on hadronic events collected by the DELPHI experiment at LEP1. The dependences of the photon rates ... -
A study of the diffusive properties of a modified compressible Navier-Stokes model
(Journal article; Peer reviewed, 2022)The aim of this study is to provide further validation for the weakly well-posed modified compressible Navier-Stokes system proposed in Svärd (Phys A 506:350–375, 2018) when applied to ideal gases. We do so by considering ... -
Study of the flow in a hydrocyclone using positron emission particle tracking and computational fluid dynamics simulation
(Doctoral thesis, 2016-06-22)This thesis presents my work of studying the flow in a hydrocyclone using positron emission particle tracking (PEPT) and computational fluid dynamics (CFD) simulation. Hydrocyclone separators are a type of cyclone separators ... -
Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at √s=8 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2019-03-10)The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb−1 of data recorded in the ATLAS detector at the LHC at centre-of-mass ... -
A study of the ichnology, lithology and reservoir quality of the Palaeogene Grumantbyen Formation on Svalbard
(Master thesis, 2016-11-10)The Palaeogene Grumantbyen Formation is one of the least understood formations in the geology of Svalbard. The objective of this thesis was to get a better understanding of the sedimentological development and depositional ... -
Study of the impact of heterogeneity on the modeling of fluid-flow, based on a turbidite reservoir analogue Ainsa-1 quarry outcrop, Spain
(Master thesis, 2012-06-01)Geological heterogeneity includes variations in porosity, lithology, mechanical properties, structure, etc. (Eaton, 2006) and in the case of sedimentary bodies, facies distribution acts as a constraint of them. It is proven ... -
A study of the influence of vorticity, capillarity and slope angle on the properties of shoaling and breaking waves
(Doctoral thesis, 2021-10-28)Fluid motion and wave patterns have fascinated humans for centuries if not millennia. Water waves have been studied out of curiosity such as observing the ripples created by a stone dropped in a pond as well as practical ... -
A Study of the Modelling Error in two Operator Splitting Algorithms for porous Media Flow
(Department of Applied Mathematics report, Research report, 1997-10)