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The first search for nonresonant Bc+→π+μ+μ- decays is reported. The analysis uses proton–proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9fb-1. No evidence for an excess of signal events over background is observed and an upper limit is set on the branching fraction ratio B(Bc+→π+μ+μ-)/B(Bc+→J/ψπ+)
To reduce carbon emissions, logistics companies take measures to achieve the climate neutrality target to reach “Green Logistics.” As one of the valuable measures, gradually replacing present fossil fuel vehicles with electric vehicles for parcel delivery and linehaul transportation is scheduled at the terminals of logistics companies. The charging load of a fully electrified vehicle fleet challen
We are now seeing the development of a new generation of synchrotron radiation sources, the seeded, short-wavelength Free Electron Lasers (FELs), which are capable of driving the radiation to even higher intensities, and with new capabilities such as longitudinal coherence and ultra-short pulses. The Workshop on High-harmonic Seeding for Present and Future Short Wavelength Free-Electron Lasers, ho
Within a collaboration between MAX-lab and BESSY a one stage seeded HGHG-FEL has been set up at Maxlab. BESSY has built the undulator system consisting of a modulator, a radiator and an electromagnetic chicane. BESSY has also installed three types of diagnostic tools: optical fibres for a fast Cherenkov beam loss detection, optical fibres for absolute dose measurements via their radiation-induced
Background: The aim was to investigate the noise and bias properties of quantitative 177Lu-SPECT with respect to the number of projection angles, and the number of subsets and iterations in the OS-EM reconstruction, for different total acquisition times. Methods: Experimental SPECT acquisition of six spheres in a NEMA body phantom filled with 177Lu was performed, using medium-energy collimators an
Background: A single learning algorithm can produce deep learning-based image segmentation models that vary in performance purely due to random effects during training. This study assessed the effect of these random performance fluctuations on the reliability of standard methods of comparing segmentation models. Methods: The influence of random effects during training was assessed by running a sin
Non-revenue water due to pipe leakages presents a significant global challenge, impacting both the economy and environmental sustainability. The current approach to pipe management for water utilities in Sweden is mainly reactive; leaks are repaired when detected, sometimes with large costs if the leakage is extensive and critical. With this study, we want to focus on proactive pipe network manage
Cooperative driving is a promising paradigm to improve traffic efficiency and safety. In congested traffic scenarios, such cooperation allows for safe maneuvering and driving with small inter-vehicle spatial gaps. The vehicles involved coordinate their movements in real-time and continuously update each other about their maneuver execution status by means of Vehicle-to-Everything (V2X) communicati
In this paper we study the output consensus problem for systems of agents with linear continuous, time invariant dynamics. We derive control laws with minimal energy that solves the problem, while using only relative information. Instead of considering a fixed communication topology for the agents, and derive the optimal control for that topology, we derive the optimal control law for any communic
We present a synchronized multisensory dataset for accurate and robust indoor localization: the Lund University Vision, Radio, and Audio (LuViRA) Dataset. The dataset includes color images, corresponding depth maps, inertial measurement unit (IMU) readings, channel response between a 5G massive multiple-input and multiple-output (MIMO) testbed and user equipment, audio recorded by 12 microphones,
Objectives: To report the long-term outcomes from a longitudinal psychosocial study that forms part of the ‘Identification of Men with a genetic predisposition to ProstAte Cancer: Targeted Screening in men at higher genetic risk and controls’ (IMPACT) study. The IMPACT study is a multi-national study of targeted prostate cancer (PrCa) screening in individuals with a known germline pathogenic varia
This chapter examines the evolving landscape of craft and its implications for market exchanges, focusing on the embedded relationships between craft producers and consumers. Craft, characterized as an ideology of work resisting the dominance of industrialization and mass production, has experienced several waves of revival throughout history. While contemporary craft hints at alternative social a
The aim of this study was to examine municipalities local norms of financial support regarding housing costs, and to analyse the municipalities from a new institutional perspective, more specifically adaptation to national guidelines and their isomorphism. The study did not aim to examine or analyse individual social workers’ methods and reflections, but to analyse the municipalities local guideli
I uppsatsen undersöker jag hur begrepp och teori från visuell kultur kan användas för att analysera arkitektur och i synnerhet hem genom att utforma ett analysverktyg för bilder. Syftet är att undersöka hur föreställningar, värderingar och idéer hos betraktare kan påverkas av det som bilderna förmedlar, och vilken makt bildproducenter av bilder på arkitektur har som individer och grupper. Jag är s
This thesis has been made in collaboration with the company Orbital Systems. The aim has been to optimize their product the Orbital shower, which is a circulating shower system. The work evaluates different sensor techniques suitable for detection of contaminants in greywater. After a comprehensive literature study, three techniques; ultrasound, IR and impedance were further investigated and prac
This thesis aims to provide information regarding which critical success factors that are beneficial for small and medium enterprises when implementing Robotic Process Automation. It has been done by identifying 11 critical success factors from 14 academic research articles treating Critical Success Factor’s in Customer Relationship Management and Enterprise Resource Planner implementations. The 1
Bakgrund: Hundar används inom många områden i hälso- och sjukvården, för att bland annat motivera, aktivera eller möjliggöra för klienten att utföra och delta i aktiviteter mer självständigt. Arbetsterapeutisk forskning har visat att utförande av aktiviteter som upplevs som meningsfulla för människan och där hon känner delaktighet i samhället har samband med både välbefinnande och bättre hälsa. Mo
Thesis Purpose: The aim of this research project was to uncover the meaning of extraordinary experiences for consumers’ identity projects and to understand how extraordinary experiences, rather than brands and possessions, can be used for self-presentation and self-extension. Methodology: Following Van Manen’s method for hermeneutic phenomenological research combined with Derrida’s notion of deco
The aim of this study was to examine students gaming habits and what function playing computer games fulfil for students. The study was conducted with the help of a survey methodology and was sent to 500 students at Lunds university. The students got selected via an unbound random selection. 52 participants answered the survey. They majority of students plays computer games. Regarding those who pl
