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https://www.keg.lu.se/en/sites/keg.lu.se.en/files/sgspl_utbildningsplan_reviderad_ht12.pdf - 2026-07-12

Mid-ranging control is a control strategy that is used when there are more than one manipulated variable available to control a process variable. Mid-ranging control handles the redundancy by coordinating the roles of the different manipulated variables. The most common approach is to introduce valve position controllers (VPC) that control the relations between the manipulated variables. In this p

This paper proposes a convex approach to the Frisch-Kalman problem that identifies the linear relations among variables from noisy observations. The problem was proposed by Ragnar Frisch in 1930s, and was promoted and further developed by Rudolf Kalman later in 1980s. It is essentially a rank minimization problem with convex constraints. Regarding this problem, analytical results and heuristic met

We present a simple reduction of the problem of nondecreasing paths (with minimal last edge weight) in a directed edge-weighted graph to a reachability problem in a directed unweighted graph. The reduction yields an alternative simple method of solving the single-source nondecreasing paths problem in almost linear time. If the edge weights are integers then our algorithm can be implemented in O((n

A novel approach for structure alignment is presented, where the key ingredients are: (1) An error function formulation of the problem simultaneously in terms of binary (Potts) assignment variables and real-valued atomic coordinates. (2) Minimization of the error function by an iterative method, where in each iteration a mean field method is employed for the assignment variables and exact rotation

Autonomous vehicles and robots are typically equipped with Lidar and camera. Hence, calibrating the Lidar-camera system is of extreme importance for ego-motion estimation and scene understanding. In this paper, we propose a two-step approach (coarse + fine) for the external calibration between a camera and a multiple-line Lidar. First, a new closed-form solution is proposed to obtain the initial c

A blog-post on a performance of The Taming of the Shrew by LU students.

Concentrated solutions of monoclonal antibodies have attracted considerable attention due to their importance in pharmaceutical formulations; yet, their tendency to aggregate and the resulting high viscosity pose considerable problems. Here we tackle this problem by a soft condensed matter physics approach, which combines a variety of experimental measurements with a patchy colloid model, amenable

This paper outlines a guiding principle to address spatial inequalities and injustice in terms of distribution, recognition and participation. The result suggests the emergence of a contractarian principle designed to deal with geographically distributed inequalities, allowing for a monitored market economy applicable not only to cities but to all types of territory. This guiding principle is base

In today’s competitive marketplace, robotics and HRI is an exciting new paradigm for changing how work is done in organisations. Its potential success depends on how HRI fit to humans and other technologies in an organisation. The paper argues that the Human-Technology-Organisation framework may be used as an analytic tool to widen the understanding of prerequisites for successful development, imp

Science is a gigantic network of search for knowledge, where researchers set up and test hypotheses, and the results are made available to other researchers, mainly through publications. The outcome of the subsequent discussion defines the current standing of scientific knowledge.

We report a case of a 5-year-old child who suffered an oral allergy syndrome and lip angiedema after eating grapes. We obtained a positive prick test with commercial grape extract and a positive prick-by-prick test with pulp and peel of fresh white grape (Moscatel variety) and pulp and peel of blue grape. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis followed by immunoblotting reveale