Browsing NTNU Open by Author "Strandlie, Are"
Now showing items 1-13 of 13
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A First-Principles Study of the Al (001)/Fe(0-11) Interface
Khalid, Muhammad Zeeshan; Friis, Jesper; Ninive, Per Harald; Marthinsen, Knut; Strandlie, Are (Journal article; Peer reviewed, 2018)Two phase Stefan problem was solved using analytical method in cylindrical domain. To solve governing equations Eigen conditions were formulated by using separation of variable technique. Eigenvalues of the eigencondition ... -
Ab-initio study of atomic structure and mechanical behaviour of Al / Fe intermetallic interfaces
Khalid, Muhammad Zeeshan; Friis, Jesper; Ninive, Per Harald; Marthinsen, Knut; Strandlie, Are (Journal article; Peer reviewed, 2020)First-principles virtual tensile and shear test calculations have been performed to Al(0 0 )//-AlFeSi(0 0 1) and Al(0 4)//Fe4Al13(1 0 ) interfaces by the ab initio pseudo potential density functional theory method. Work ... -
Atomistic modelling of Fe-Al and α-AlFeSi intermetallic compound interfaces
Khalid, Muhammad Zeeshan (Doctoral theses at NTNU;2020:86, Doctoral thesis, 2020)The joining of aluminum and steel has been considered an efficient solution for building light-weight technology, particularly in the automotive, aerospace and shipbuilding industries. It is an immense challenge to join ... -
European Organisation for Nuclear Research (CERN) 13 Month Placement: activity report, July 2007 - August 2008
Buskenes, Jo Inge (Student paper, others, 2008)I attended the technical student program at CERN (The European Organization for Nuclear Research) from July 2007 to August 2008. More speci cally, I worked with the PHOS (ALICE Photon Spectrometer) detector, which is one ... -
Exploration and extension of an improved Riemann track fitting algorithm
Strandlie, Are; Frühwirth, Rudolf (Journal article; Peer reviewed, 2017)Recently, a new Riemann track fit which operates on translated and scaled measurements has been proposed. This study shows that the new Riemann fit is virtually as precise as popular approaches such as the Kalman filter ... -
First-principles study of tensile and shear strength of an Fe2Al5//Fe interface
Khalid, Muhammad Zeeshan; Friis, Jesper; Ninive, Per Harald; Marthinsen, Knut; Ringdalen, Inga Gudem; Strandlie, Are (Peer reviewed; Journal article, 2021)The interfacial strengths of a low misfit Fe2Al5//Fe interface structure found at aluminum-steel joints has been studied using density functional theory. An interface between Fe and Fe2Al5 was selected based on a criteria ... -
First-principles study of tensile and shear strength of Fe-Al and α-AlFeSi intermetallic compound interfaces
Khalid, Muhammad Zeeshan; Friis, Jesper; Ninive, Per Harald; Marthinsen, Knut; Strandlie, Are (Peer reviewed; Journal article, 2021)First-principles virtual tensile and shear strength calculations have been performed on the Fe2Al5// Fe4Al13 and -AlFeSi// Fe4Al13 interfaces. The Fast Inertial Relaxation Engine (FIRE) algorithm is used for optimizing ... -
Modified embedded atom method potential for Fe-Al intermetallics mechanical strength: A comparative analysis of atomistic simulations
Khalid, Muhammad Zeeshan; Friis, Jesper; Ninive, Per Harald; Marthinsen, Knut; Ringdalen, Inga Gudem; Strandlie, Are (Peer reviewed; Journal article, 2021)The structural and mechanical properties of Fe-Al compounds (FeAl, FeAl, FeAl, FeAl, FeAl, FeAl) have been studied using modified embedded atom method (MEAM) potentials. The equilibrium lattice constants, formation enthalpies, ... -
Pattern Recognition and Reconstruction
Frühwirth, Rudolf; Brondolin, E; Strandlie, Are (Chapter, 2020)The topic of the chapter is track and vertex reconstruction in particle detectors. The reconstruction of (charged) tracks and the subsequent reconstruction of interaction vertices are important steps in the data analysis ... -
Pattern Recognition, Tracking and Vertex Reconstruction in Particle Detectors
Fruhwirth, Rudolf; Strandlie, Are (Particle Acceleration and Detection;, Book, 2021)This open access book is a comprehensive review of the methods and algorithms that are used in the reconstruction of events recorded by past, running and planned experiments at particle accelerators such as the LHC, SuperKEKB ... -
Robust circle reconstruction with the Riemann fit
Fruhwirth, R; Strandlie, Are (Journal article; Peer reviewed, 2018)Finding and fitting circles from a set of points is a frequent problem in the data analysis of high-energy physics experiments. In a tracker immersed in a homogeneous magnetic field, tracks are close to perfect circles if ... -
Track parameter propagation through the application of a new adaptive Runge-Kutta-Nyström method in the ATLAS experiment
Lund, Espen; Bugge, Lars; Gavrilenko, Igor; Strandlie, Are (Journal article; Peer reviewed, 2009)In this paper we study several fixed step and adaptive Runge-Kutta methods suitable for transporting track parameters through an inhomogeneous magnetic field. Moreover, we present a new adaptive Runge-Kutta-Nyström method ... -
Transport of covariance matrices in the inhomogeneous magnetic field of the ATLAS experiment by the application of a semi-analytical method
Lund, Espen; Bugge, Lars; Gavrilenko, Igor; Strandlie, Are (Journal article; Peer reviewed, 2009)In this paper we study the transport of track parameter covariance matrices - the so-called error propagation - in the inhomogeneous magnetic field of the ATLAS experiment. The Jacobian elements are transported in parallel ...