Filtyp
Nanoscale detection and control of the magnetic order underpins a spectrum of condensed-matter research and device functionalities involving magnetism. The key principle involved is the breaking of time-reversal symmetry, which in ferromagnets is generated by an internal magnetization. However, the presence of a net magnetization limits device scalability and compatibility with phases, such as sup
Epitaxial layers of (Ga,Mn)As ferromagnetic semiconductor have been subjected to low-energy ion implantation by applying a very low fluence of either chemically active, oxygen ions or inactive ions of neon noble gas. Several complementary characterization techniques have been used with the aim of studying the effect of ion implantation on the layer properties. Investigation of their electrical and
This paper describes a new method for detection and estimation of backlash in control loops. The detection procedure is based on normal operating data. It is not assumed that the output from the backlash is measured. The procedure is automatic in the sense that no information has to be provided from the user to run the procedure. Since an estimate of the dead band caused by the backlash is provide
Different methods of preventing delamination in impulse drying are discussed, and a new method to avoid delamination is presented. The method is based on maintaining a low hydraulic pressure in the paper web. This gives a low temperature in the web, and the corresponding vapor pressure is not sufficient to delaminate the paper web. Experiments were made on a nip simulator to determine the critical
https://www.lu.se/studera/trafiksimulering-TFRP95 - 2026-10-05
The goal of this work is to specify and investigate suitability of a number of selected permanent magnet synchronous machine (PMSM) topologies to be mounted directly on a low pressure shaft (LPS) of a geared turbofan engine. The starting point of the work is to explore the status of electrical machines for more electric engine in order to study different design aspects when identifying and definin
To address the unmet need for scalable solutions for lifestyle treatment, we developed a new digital method to promote behavioral change. Here we report that patients with type-2 diabetes in Sweden (n = 331) exposed to the intervention have significantly improved HbA1c during a median follow-up of 1038 days (4 mmol/mol compared with matched controls; P = 0.009). This is paralleled by reduced body
Synthetic molecular motors typically take nanometer-scale steps through rectification of thermal motion. Here we propose Inchworm, a DNA-based motor that employs a pronounced power stroke to take micrometer-scale steps on a time scale of seconds, and we design, fabricate, and analyze the nanofluidic device needed to operate the motor. Inchworm is a kbp-long, double-stranded DNA confined inside a n
Climate engineering, or geoengineering, is large-scale technological intervention in the global climate system. How is this understood within our culture, what power relations are implied in the idea, and what are geoengineering's implications for sustainability? This thesis begins to examine this topic through the lens of culture by presenting a media analysis. It combines the quantitative me
Organizations are increasingly turning to sustainability-oriented innovation (SOI) to address pressing environmental and social challenges, yet implementation remains fraught with difficulties. Unlike incremental sustainability efforts, SOI embeds sustainability objectives into the core of innovation processes, encompassing products, services, and business models. This study investigates how the a
