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We study the stability of oscillation in two different multi-mode harmonic oscillators by means of Barkhausen’s criterion, involving a minimum of mathematical machinery in favor of a more intuitive, circuit-based approach. The results of the theoretical analysis match very closely those obtained through transient simulations, confirming occasionally surprising outcomes of the latter.
Cellular-connected unmanned aerial vehicle (UAV) has attracted a surge of research interest in both academia and industry. To support aerial user equipment (UEs) in the existing cellular networks, one promising approach is to assign a portion of the system bandwidth exclusively to the UAV-UEs. This is especially favorable for use cases where a large number of UAV-UEs are exploited, e.g., for packa
Our aim was to understand mechanisms for clustering and cross-linking of gliadins, a wheat seed storage protein type, monomeric in native state, but incorporated in network while processed. The mechanisms were studied utilizing spectroscopy and high-performance liquid chromatography on a gliadin-rich fraction, in vitro produced α-gliadins, and synthetic gliadin peptides, and by coarse-grained mode
In dual control, the manipulated variables are used to both regulate the system and identify unknown parameters. The joint probability distribution of the system state and the parameters is known as the hyperstate. The paper proposes a method to perform dual control using a deep reinforcement learning algorithm in combination with a neural network model trained to represent hyperstate transitions.
Accurate characterization of large-scale antenna arrays is growing in importance and complexity for the fifth-generation (5G) and beyond systems, as they feature more antenna elements and require increased overall performance. The full 3D patterns of all antenna elements in the array need to be characterized because they are in general different due to construction inaccuracy, coupling, antenna ar
The multi-armed bandit (MAB) problem models a decision-maker that optimizes its actions based on current and acquired new knowledge to maximize its reward. This type of online decision is prominent in many procedures of Brain-Computer Interfaces (BCIs) and MAB has previously been used to investigate, e.g., what mental commands to use to optimize BCI performance. However, MAB optimization in the co
This article introduces a 28-nm CMOS digitally controlled oscillator (DCO) based on eight oscillator cores, where the number of active cores can be reconfigured to be either 2, 4, 6, or 8, trading power consumption for phase noise without incurring an additional phase noise penalty. The impact of the reconfiguration pMOS switches on the phase noise performance is determined through a simple yet ri
The Image of Sweden abroad usually comes with positive connotations. Some of Sweden’s perceived strengths, e.g. being open, authentic, caring, and innovative, are represented in the Strategy for the Image of Sweden (2013). However, changing circumstances, such as the implementation of internal border controls as a result of the migration crisis beginning in autumn 2015, along with a changing polit
Syfte: Syftet med studien är att undersöka effekten av ett kartläggningsbesök med efterföljande telefonuppföljning på användande av kommunikationsstrategier och hörselrelaterad livskvalitet för individer med betydande hörselnedsättning (TMV4 60-69 dB HL på bättre örat). Metod: Ett kartläggningsbesök utformades där fokus låg på individen och dennes upplevda besvär kring den egna hörselnedsättningen
IntroductionSport-related concussion (SRC) is a major health concern in contact sports. Linear head acceleration (LHA) and rotational head acceleration (RHA) are central biomechanical markers, and anticipatory neck muscle activation may mitigate these forces. Evidence on how anticipation influences head kinematics, and whether sex differences exist, remains limited. This study compared head accele
In this paper, we consider near-field localization and sensing with an extremely large aperture array under partial blockage of array antennas, where spherical wavefront and spatial non-stationarity are accounted for. We propose an Ising model to characterize the clustered sparsity feature of the blockage pattern, develop an algorithm based on alternating optimization for joint channel parameter e
Background: Markov models are models used to describe movement of individuals between states. In medicine, Markov models are used to describe, for example, disease progression and the effects of interventions on such progression. The models can further be used to identify medical risk groups and aid clinicians in clinical decision making. Although accurate individual predictions are crucial for ut
Covariate modeling provides individual predictions of outcomes by disease progression models. Current methodology for mapping covariates onto model parameters is limited by predefined parametric functions which can result in inadequate covariate selection and biased predictions by the final model. Furthermore, present methodology scales poorly to high-dimensional data due to combinatorial limitati
Masterutbildning i livsmedelssystemanalys utbildningsplan Sida 1 av 7 UTBILDNINGSPLAN Masterutbildning i livsmedelssystemanalys - Programkod: TALSA - Omfattning: 120 högskolepoäng - Tillträdesnivå: Avancerad nivå - Beslutsfattare: Carl Grey - Utbildningsplanens giltighet: 2022/2023 - Utbildningsplanen fastställd: 2022-03-07 Förutom utbildningsplanen för denna utbildning gäller även gemensamma före
The right to adequate housing in the context of urban disaster displacement in Sierra Leone, Kenya and Uganda - The Raoul Wallenberg Institute of Human Rights and Humanitarian Law Skip to content Search for: Search Button Home About Us Who We Are Our History About Raoul Wallenberg Our Theory of Change Staff Opportunities Annual Reports Whistleblower Our work What we do Multi-Disciplinary Research
Institutionen för processteknik och tillämpad biovetenskap tillhandahåller ett brett urval av utbildningar som ämnesmässigt ligger nära våra forskningsområden. Variationen är stor och möjligheterna många! En examen från oss öppnar många dörrar på arbetsmarknaden. Undrar du hur det är att studera på LTH så kan du läsa mer om utbildning på LTH:s webbplats. Kandidatutbildning Kandidatutbildning i liv
https://www.ple.lth.se/utbildning - 2026-05-19
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