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Articles /TS (214)
Conference Contributions /TS (155)
Doctoral Theses /TS (8)
Licentiate Theses /TS (8)
Monographs and Chapters in Monographs /TS (20)
Reports /TS (55)

Recent Submissions

Evaluation of microstructural development in electron beam melted Ti-...
Safdar, Adnan; Wei, Liu-Ying; Snis, Anders; Lai, Zhonge Journal article in Materials Charecterization; : Elsevier (2012)	peer-reviewed scientific ARTICLE

English abstract

In the current work an investigation of the microstructures of EBM built Ti-6Al-4V test bars has been performed using OM, SEM, TEM and XRD. It has been found that the prior β phase, that formed during the initial solidification, possesses a column shaped morphology with growing direction parallel to built direction. Typical (α+β) structures namely Widmanstätten α platelets with rod-like β phase formed on the interfaces of the fine α grains, have been observed in the columnar...

Microstructures and surface roughness of EBM produced Ti-6Al-4V
Safdar, Adnan : Solid Mechanics, Lund University (2010)	LICENTIATE THESIS

English abstract

The work presented in this dissertation is concerned with the microstructures and surface roughness of test slabs of Ti-6Al-4V produced by one of powder based Additive Manufacturing (AM) technique namely Electron Beam melting (EBM). The effects of process parameters of a EBM system and geometry factors of a EBM build such as slabs’ thickness and height etc. on the microstructure and the surface roughness of the EBM produced Ti-6Al-4V have being investigated. The processing p...

Licenciate-Adnan.pdf (4.829Mb)

Persistence in a single species CSTR model with suspended flocs and w...
Masic, Alma; Eberl, Hermann Journal article in Bulletin of Mathematical Biology; : Springer Verlag (2012)	peer-reviewed scientific ARTICLE

English abstract

We consider a mathematical model for a bacterial population in a continuously stirred tank reactor (CSTR) with wall attachment. This is a modification of the Freter model, in which we model the sessile bacteria as a microbial biofilm. Our analysis indicates that the results of the algebraically simpler original Freter model largely carry over. In a computational simulation study, we find that the vast majority of bacteria in the reactor will eventually be sessile. However, we al...

Masic_Eberl_Per ... wall attached biofilms.pdf (387.1Kb)

Gymnasiereformen och nya medier – möjligheter och utmaningar för mate...
Jönsson, Per; Lingefjärd, Thomas; Svingby, Gunilla; Riesbeck, Eva Journal article in Datorn i Utbildningen; : Föreningen Datorn i utbildningen (2011)	ARTICLE

Swedish abstract

Matematikundervisningen i den svenska skolan står inför mycket stora förändringar. Regeringen har nyligen beslutat om nya ämnesplaner för både grundskolan och gymnasieskolan, vilka ska tillämpas på utbildningar som påbörjas efter den 1 juli 2011. Med ett nytt centralt ämnesinnehåll kommer också nya kunskapskrav och ett nytt betygssystem. Utöver detta står skolan inför en i praktiken mycket större och mera genomgripande förändring, nämligen att motsvara de krav som samhället...

diu_MZ_PJ.pdf (249.8Kb)

Transition rates in the B-, C-, N-, O-, and Ne-like sequences from re...
Jönsson, Per; Gustafsson, Stefan; Ekman, Jörgen; Bengtsson, Peter; Rynkun, Pavel; Gaigalas, Gediminas Conference poster in Abstracts 43rd Conference of the European Group for Atomic Systems (EGAS); : European Physical Society europhysics conference abstracts; (2011) 43st European Group for Atomic Systems, Fribourg (Switzerland), June 28 – July 2, 2011	conference POSTER

English abstract

Atomic data are important in astrophysical applications and transition data can be used in the determination of element abundances and plasma diagnostics [1]. To provide for the extensive data needs a number of general computer codes such as SUPERSTRUCTURE, CIV3, and ATSP2K have been developed. As an alternative to these codes, which all rely on the Breit-Pauli approximation, the fully relativistic GRASP2K code [2] can be used. GRASP2K is based on the multicon guration Dirac...

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