Aaltodoc

Aaltodoc is the institutional repository of Aalto University.

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Otakaari 1 grandhall. Photo: Esa Kapila
 

Recent Submissions

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Synthesizing Art and Science - A Collaborative Approach to Understanding Intergroup Relations and Contributing to Social Change.
(Aalto University, 2024) Amir, Einat; Sams, Mikko, Prof. Emer., Aalto University, Department of Neuroscience and Biomedical Engineering, Finland; Arkkitehtuurin laitos; Department of Architecture; Taiteiden ja suunnittelun korkeakoulu; School of Arts, Design and Architecture; Sederholm, Helena, Assoc. Prof., Aalto University, Department of Bioproducts and Biosystems, Finland
This thesis examines the vital role artists can play in shaping individuals and societies, emphasizing art as an impactful force that can foster a more inclusive, empathetic world. It explores the concept of synthesizing art and science, suggesting that equal collaborations between these fields can yield innovative solutions to contemporary 'Wicked' problems. This thesis is situated within the interdisciplinary domains of socially engaged research, ArtScience, and artistic research, with a special focus on the relationships between participatory performance art and social psychology. This research agenda is composed of both the written and artistic components. It presents an analysis of innovative ArtScience interdisciplinary research methods and hinges on the role and efficacy of art, from collective transformation to personal engagement. Component 1 responds to why there exists a need for equal collaborations between scientists and artists, and how such collaborations could contribute to society. Underlining that artists are needed more than ever during challenging times, this study advocates for their crucial integration into all societal and environmental change initiatives. Component 2 shows empirical evidence from multiple studies of how the synthesis of art and science, specifically performance art with social psychology, contributes to improving prosocial behaviors by elevating empathy towards individuals from marginalized groups in different societies. Component 3 presents a tangible example of the synthesis of a social psychology field experiment with participatory performance art. As an artwork rather than an academic article, this component offers an opportunity for experiential understanding through direct emotional and aesthetic engagement, as opposed to merely analytical comprehension. Finally, component 4 illuminates the significance of art for the individual self, positioning narrative-based art as a safe space for emotional exploration, devoid of real-life social consequences. Drawing upon the dynamic interplay between scientific research and artistic practice, this thesis positions research as the confluence between theory and practice, unearthing new knowledge. The synthesis of art and science in collaborative ventures offers enormous possibilities for innovative research. Beyond this, it has a multifaceted impact—it can educate, influence, and evoke change in individuals and societies in multiple ways.
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Harmiton sähköisku vai pikainen kuolema
(Aalto-yliopisto, 2024) Mäkinen, Markku; Kimmo Lehtonen; Sähkötekniikan ja automaation laitos; Department of Electrical Engineering and Automation; Sähkötekniikan korkeakoulu; School of Electrical Engineering; Matti Lehtonen
This licentiate thesis investigates occurred electric accidents in Finland during 1882–1932. Research covering this topic during the first 50 years of electrification in Finland has not been done previously. The central empirical material consisted of news on electric accidents published in national newspapers. This information was extended and enlarged by statistics, articles in technical journals, textbooks and references in printed items. The references gave qualitative and quantitative information. Qualitative analysis, close reading was the central method. The authors own experience and insights of the re-search topic was used as guiding theory. The total number of electric accidents was registered as well as the number of accidents among laymen and pro-fessionals. In addition, the month and the geographical location of the accidents were registered. The causes and consequences of the accidents were investigated in the qualitative analysis of the material. The most common causes of the accidents among laymen and professionals were analyzed. In the theoretical part of the thesis the concepts of electric safety and electrical work safety were investigated as well as the growing orientation towards electrical injuries and the effects of electricity on human physiology with-in medical sciences. The results indicate that electric accidents were well covered and reported in the newspapers. The majority of accidents happened on the countryside, to laymen and men. The number of accidents among laymen was nearly the double compared to that of the professionals. No electric accidents were however reported during the first decades. This can be explained by the fact that extra low voltage DC-systems were used for lighting, electrical equipment were rare and pluggable equipment were not yet available. Among the professionals the intended or unintended working in bare live part or too close to it dominated as the cause of accidents. Electrical safety as we understand it today was in many ways an unknown concept theoretical-ly as well as regarding tools, equipment, devices and working procedures. The number of electrical accidents increased considerably in the 1910s. This was caused by the electrification of Finland´s country districts and in many ways unsafe electrical installations. In addition, the laymen´s insight of the dangers of electricity was very poor. Several accidents happened because of pure playing. This thesis produces new information on the total number of electric accidents in Finland. Earlier studies have investigated the number of fatal electric accidents starting from year 1930. This study adds the information re-garding the previous 50 years. A total picture of fatal electric accidents during 1882–2022 is thus reached. In addi-tion, new information about non-fatal accidents was documented. The results can be applied and considered in future research regarding for example the electrical safety act and the statutes and guidelines given by the authorities.
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Autonomous Vehicle Perception and Navigation in Adverse Conditions
(Aalto University, 2024) Seppänen, Alvari; Konetekniikan laitos; Department of Mechanical Engineering; Autonomous Mobility Laboratory; Insinööritieteiden korkeakoulu; School of Engineering; Tammi, Kari, Prof., Aalto University, School of Engineering Finland
Autonomous mobility has gained popularity in recent years due to the promise of safer and more efficient transportation systems. However, multiple challenges hinder the realization of fully autonomous transportation, e.g., safety, operational environment limitations, and efficiency. This thesis addresses challenges related to the perception and navigation of outdoor mobile robots in adverse conditions. These conditions refer to adverse weather and limited communication between a remote operator and the robot. Adverse weather conditions affect the perception systems, namely light detection and ranging (LiDAR) sensors, causing specific types of noise to the data. This work aims to denoise this data and thus provide clean data for downstream systems. Two deep-learning-based denoising approaches are proposed: a supervised approach that utilizes a spatiotemporal module and a selfsupervised multi-echo approach. The supervised method's spatiotemporal module enables efficient data usage and generalization from semi-synthetic to fully real-world data. The self-supervised approach learns by predicting the correlation of data points to their neighbors and utilizes multiecho point clouds for recovering the points representing solid objects. Experiments show that both approaches achieved state-of-the-art performance. Another challenge addressed in this thesis is the navigation in adverse conditions. These challenges refer to limited remote communication caused, for example, by adverse weather conditions. The limited communication between teleoperators and semi-autonomous mobile robots is studied. Semi-autonomous control strategies are proposed to aid the teleoperators when communication signal limits the system's performance. Experiments with a mobile robot prototype revealed that the strategies improved the navigation. Future research should focus on testing the denoising with downstream algorithms and assessing the control strategies in more complex environments. Many adverse and unexpected scenarios must be addressed to realize fully autonomous vehicles in complex environments. Therefore, more unified solutions tackling multiple issues simultaneously are desired in future research.
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Validated edge and core predictions of tungsten erosion and transport in JET ELMy H-mode plasmas
(Institute of Physics Publishing, 2024-05) Kumpulainen, H. A.; Groth, M.; Brezinsek, S.; Casson, F.; Corrigan, G.; Frassinetti, L.; Harting, D.; Romazanov, J.; , JET Contributors; Department of Applied Physics; Fusion and Plasma Physics; Forschungszentrum Jülich; Culham Science Centre; KTH Royal Institute of Technology
Predictive edge and core simulations of tungsten (W) erosion and transport in JET ITER-like wall plasmas are shown to be consistent with the experimentally inferred W density in the main plasma, within the uncertainty inherited from the measurements of the deuterium plasma conditions and from the W density measurements. The ERO2.0 code is applied to predicting the W erosion and edge transport, whereas JINTRAC predicts W transport from the pedestal top to the core plasma. The studied plasma scenarios range from L-mode to the highest-performance deuterium ELMy H-mode in JET.
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Brand dynasty: managing charismatic legitimacy over time
(Taylor & Francis, 2023) Arnould, Eric; Dion, Delphine; Department of Marketing; ESSEC Business School
Drawing upon extensive research in luxury, we investigate how firms manage to sustain charismatic legitimacy over a succession of charismatic heirs. We question the presumption that charismatic legitimacy is personal and transitory. Instead, we show that management can deal with the inherent human limitations of charismatic legitimacy by forming a brand dynasty. We define a brand dynasty as a brand in which a series of persons (brand heirs) embody the brand persona that is defined by reference to a brand founder. Our analysis identifies three general managerial practices that together transfer and when repeated sustain brand charismatic legitimacy.