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This paper describes how focus group interviews were used in a project on developing research support services. The object of the interviews was to understand the everyday lives of researchers and the obstacles they experience in their research process. Advantages and challenges of the method are discussed, e.g. the benefits of the interaction and the free form that the method allows for and the c

This thesis presents a new method for design of PI and PID controllers with the level of control signal activity taken into consideration. The main reason why the D-part is often disabled in industrial control loops is because it leads to control signal sensitivity of measurement noise. A frequently varying control signal with too high amplitude will very likely lead to actuator wear and tear. For

Purpose: Contribution to the understanding of defensive routines within the context of Landora Färgindustri. Research question: What are the explanatory factors behind defensive routines facing an individual within the context of their situational environment at Landora. Methodology: Mixed methods with triangulation, deduction, qualitative and quantitative methods are used. Conceptual Framework: T

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Abstract Title: The Future of ABC at Sandvik Tooling – Incorporating ABC with information systems in order to drive business development from a cost point of view. Authors: Jenny Andersson and Camilla Salomonsson. Supervisor: Charlotta Johnsson – Department of Automatic Control, Lund University. Carl-Henric Nilsson – Department of Business Administration, Lund University. Mats Jacobsson – Tooling

This thesis deals with the development of simultaneous saccharification and fermentation (SSF) in order to improve the economy of the softwood-to-ethanol process. The effect of process stream recirculation on ethanol production from steam-pretreated softwood based on SSF was investigated for two process cases. In the first case, part of the stillage stream after distillation was recycled and in th

As the largest single energy-consuming component in most biological wastewater treatment systems, control of aeration is of great interest seen from an energy savings point of view. This paper suggests a simple way of using on-line ammonium measurements to control aeration in a pre-denitrification plant by controlling the dissolved oxygen setpoint. The controller works primarily by feed-forward ba

Background. Natural gas makes a significant contribution to the current energy supply and its importance, in relation to both the German and worldwide energy supplies, will increase further in decades to come. In addition to its high degree of efficiency, the low level of direct GHG combustion emissions is also an advantageous factor. However, around 90% of natural gas is methane (CH4), which is t

New decentralized energy-generation technologies have turned economies of scale upside down while becoming more economically viable. At the same time, the increased penetration of information technologies has led to new opportunities to manage infrastructure in a less hierarchical, more flexible way. Together with citizen demands for control over energy, these two converging trends has put energy

Purpose: Manufacturer specifications for the resolution of an additive manufacturing (AM) machine can be ten times smaller (more optimistic) than the actual size of manufacturable features. Existing methods used to establish a manufacturable design rule-set are conservative piecewise-constant approximations. This paper aims to evaluate the effectiveness of a first-order model for producing improve

We propose a non-intrusive reduced basis (RB) method for parametrized nonlinear partial differential equations (PDEs) that leverages models of different accuracy. From a collection of low-fidelity (LF) snapshots, parameter locations are extracted for the evaluations of high-fidelity (HF) snapshots to recover a reduced basis. Multi-fidelity Gaussian process regression (GPR) is employed to approxima

In solid mechanics, linear structures often exhibit (local) nonlinear behavior when close to failure. For instance, the elastic deformation of a structure becomes plastic after being deformed beyond recovery. To properly assess such problems in a real-life application, we need fast and multi-query evaluations of coupled linear and nonlinear structural systems, whose approximations are not straight

FÖRSÄTTSSIDA STYRDOKUMENT Riktlinjer för fördelning av beslutsbefogenheter samt arbetsformer vid Samhällsvetenskapliga fakulteten Typ av styrdokument: Riktlinjer Definition av typen av styrdokument: Enligt universitetets riktlinjer för styrdokument (STYR 2024/1601) fastställer riktlinjer hur någon ska eller bör handla inom det område riktlinjerna omfattar. En ska-regel ska följas medan en bör-rege

https://www.sam.lu.se/internt/sites/sam.lu.se.internt/files/2026-02/beslut-delegationsordning-20260212.pdf - 2026-05-28

Strengths and limitations of the neurosphere culture system The Neurosphere Culture System Various methods with slight variations in protocol exist for establishing and expanding neurosphere cultures. Generally, neurospheres are derived from a single-cell suspension of neural stem and progenitor cells isolated from the adult or fetal central nervous system (CNS), but neurosphere cultures can also

https://www.regenerative-neurobiology.lu.se/sites/regenerative-neurobiology.lu.se/files/publication_in_mol_neurobiol.pdf - 2026-05-28

Bästa resultat får du om du öppnar den här PDF-portföljen i Acrobat X eller Adobe Reader X eller senare. Hämta Adobe Reader nu! http://www.adobe.com/go/reader_download_se Postadress Box 117, 221 00 Lund Besöksadress Universitetshuset, Paradisgatan 2 Telefon 046-222 70 02, växel 046-222 00 00 E-post susanne.kristensson@rektor.lu.se Webbadress www.lu.se Univers i te tss tyre lsen Uppdrag till och sa

https://www.lu.se/sites/www.lu.se/files/protokoll-med-bilagor-us-170421.pdf - 2026-05-28