48 research outputs found
From system to sentence: Organizational conditions and user acceptance in digital transformation : A case study of a Swedish municipal technology and service management
No full text Datum: 2025-06-04 Nivå: Kandidatuppsats i Företagsekonomi, 15 hp Institution: Akademin för Ekonomi, Samhälle och Teknik, Mälardalens Universitet Författare: Imane Oukhich Ruwedo Ali Titel: Från system till mening: organisatoriska villkor och användaracceptans i digital transformationEn fallstudie av en svensk kommunal teknik- och serviceförvaltning Handledare: Michäel Du Luc och Annoch Hadjikhani Nyckelord: Digitalisering; Kommunal förvaltning; Implementering av digitala arbetssätt; Upplevd nytta; Organisatoriska utmaningar; Digital kompetens; Förändringsarbete. Forskningsfråga/or: Hur implementeras digitala arbetssätt inom teknik- och serviceförvaltningar för att öka användarnas upplevda nytta, med hänsyn till identifierade hinder och utmaningar? Syfte: Syftet med denna studie är att skapa en fördjupad förståelse för digitaliseringens praktiska tillämpning inom kommunal verksamhet. Fokus ligger på att identifiera utmaningar i implementeringen av digitala arbetssätt som påverkar den upplevda nyttan, samt att utveckla rekommendationer för en mer hållbar och strategisk digital utveckling. Metod: Studien baseras på en kvalitativ forskningsansats och bygger på nio semistrukturerade intervjuer med nyckelpersoner inom teknik- och serviceförvaltningen i en svensk kommun. Respondenterna valdes strategiskt för att spegla olika roller, erfarenheter och perspektiv i organisationen. Det insamlade materialet analyserades tematiskt med stöd av analysverktyget ATLAS.ti, där kodning genomfördes induktivt men strukturerades kring tre övergripande teman kopplade till studiens forskningsfrågor. Slutsats: Studien visar att digitalisering inom kommunal verksamhet är en komplex process där organisatoriska strukturer, digital kompetens och ledarskapspraktik spelar en avgörande roll för implementeringens framgång. Resultaten belyser flera hinder, såsom systemfragmentering, kompetensglapp och brist på samordning, men även drivkrafter i form av effektivisering, innovationsvilja samt ett växande användarstöd. För att uppnå en hållbar digital utveckling krävs inte endast tekniska lösningar, utan även en långsiktig förändringsledning, förankring i verksamheten och ett strategiskt fokus på kompetensutveckling. Date: 2025-06-04 Level: Bachelor's Thesis in Business Administration, 15 credits Institution: School of Economics, Society and Technology, Mälardalen University Author: Imane Oukhich Ruwedo Ali Title: From system to meaning: organizational conditions and user acceptance in digital transformationA case study of a Swedish municipal technology and service administration Supervisors: Michäel Du Luc and Annoch Hadjikhani Keywords: Digitalization; Municipal administration; Implementation of digital working methods; Perceived benefit; Organizational challenges; Digital competence; Change management. Research question(s): How are digital working methods implemented within technology and service administrations to increase users' perceived benefit, taking into account identified obstacles and challenges? Purpose: The purpose of this study is to create a deeper understanding of the practical application of digitalization in municipal operations. The focus is on identifying challenges in the implementation of digital working methods that affect the perceived benefit, and to develop recommendations for a more sustainable and strategic digital development. Method: The study is based on a qualitative research approach and is based on nine semi-structured interviews with key people within the technology and service administration in a Swedish municipality. The respondents were strategically selected to reflect different roles, experiences and perspectives in the organization. The collected material was analyzed thematically with the support of the analysis tool ATLAS.ti, where coding was carried out inductively but structured around three overarching themes linked to the study's research questions. Conclusion: The study shows that digitalization in municipal operations is a complex process where organizational structures, digital competence and leadership practice play a crucial role in the success of the implementation. The results highlight several obstacles, such as system fragmentation, skills gaps and lack of coordination, but also driving forces in the form of efficiency, a willingness to innovate and growing user support. Achieving sustainable digital development requires not only technical solutions, but also long-term change management, anchoring in the business and a strategic focus on skills development
A CMOS 0.35 μm High Quality Factor Active Filter
Full text linkIn this work we describe the topology of an active filter using active inductor principle with a high quality factor in CMOS technology. This filter shows a resonant frequency at 6.4 GHz. A negative resistor circuit and Q-enhancement techniques such as channel width and current and voltage optimisation of the transistors compensated serial and parallel loss. S21 parameters were studied in two frequencies 6 GHz and 12 GHz according to the value of a capacitance that tunes the frequency of the filter
Improved Fully Differential Low Power Active Filter
Get PDFThis paper relates the new topology and simulations of a fully differential CMOS active filter for mm wave band applications. The advantages of the differential topology over the single ended one are discussed and the quality factor is tuned to insure application requirements, including narrow bandwidth and high selectivity due to a differential negative resistance that reuses the filter’s current. Using this topology enables independent tuning of the quality factor and low power consumption while compensating the resistive loss of the filter. Very high filter performance was obtained with the simulated active inductor based active filter that was designed using CMOS 0.35 µm technology from AMS foundry and that resonates at 30 GHz with a high quality factor of Q > 500
P(VDF/TrFE) morphologies and crystalline lamellae orientations dependence on substrates characterized by scanning probe microscopy
No full textDesigning a lighting system in a multi-actor railway environment of complex marshalling yards: An exploratory case study of the subsystems, requirements and possible configurations
No full textProRail wants to upgrade all shunting yards in the Netherlands to the latest health and safety and environmental regulations (ProRail, 2020). The new lighting system at shunting yards of ProRail does not meet the intended environmental goals. here is a need for lighting systems to be installed that save energy and costs, but most studies suggest new techniques and technological components that can be applied. Little research has been done into the question of what an architectural design and process should meet on a socio-technical level. The lighting system should be seen as a large complex system consisting of interconnected and interdependent actors. A technical solution or improvement only is insufficient to achieve the environmental goal of saving energy. Therefore, the whole system must be brought together; the interaction with stakeholders and users, technology, laws and regulations must be determined in order to understand the complex system and formulate a solution. This research was carried out using a Design Science Research (DSR) approach, combined with Systems Engineering (SE) to deliver a process road map for the implementation lighting system that is well supported by both, the problem owner and the users of the yard. Requirements have been formulated using the Requirements Engineering, part of systems engineering, and resulted in various means that have been formulated for the six most important requirements in the form of a morphological chart. Choosing the right means from the morphological map to arrive at a definitive lighting system, creates dilemmas and challenges that require making trade-offs. The possible means for the main functions should be compared against each other by weighing out the advantages and disadvantages so that a mean can be chosen for each function to arrive at a result that maximizes the overall preference for a design. An exchange must be made because the quality or property of the chosen mean is reduced or lost in exchange for gains in other aspects of another mean. These advantages and disadvantages of the means have been researched and described resulting in different trade-offs. This new approach to system design in the train sector provides insights into the fact that it should not be approached from a purely technical point of view only: the soft side of involving human aspect is indispensable. Moreover, this research can be seen as a guide for performing requirements engineering as the whole process is described in detail. Complex Systems Engineering and Management (CoSEM
Samen Leven: A research about elements in architecture which contributes to a healthier environment
No full textThis research and design is about "Het Gemeenschap Gezondheidshuis; Samen Leven". A research about the change of healthcare nowadays; where people want to stay at home longer and have care at home. But also where the needs of a patient are more central. The main question is: what elements of architecture contributes to a healthier environment, to create a home like feeling for everyone with different cultural backgrounds. In the design this was the mainfocus. In the design these aspects where applied in the forms of a single room area, where the rehabilitated had the choice to whether stay in there rooms, make use of the common kitchen of have a coffee in the public coffee bar. In this same bar passants have the oppertunity to drink a coffee as well, without having the feeling to be in a place of recovery.Architecture, Urbanism and Building Science
Detection of patient-ventilator asynchrony based on esophageal pressure using a convolutional neural network
No full textIntroduction: In intensive care units (ICU), the most significant life support technology for patients with acute respiratory failure is mechanical ventilation. A mismatch between ventilatory support and patient demand is referred to as patient-ventilator asynchrony (PVA), and it is associated with a series of adverse clinical outcomes. Although the use of a reference signal for patient effort is critical in recognition of PVA, existing detection algorithms are frequently solely based on the ventilator’s airway pressure (Paw) and flow-time signals. The aim of this study was to develop an automated detection algorithm for PVA using the ventilator’s Paw, flow-time and esophageal pressure (Pes) signals. Methods: We proposed a two-dimensional convolutional neural network (2DCNN) to detect two types of PVA (reverse triggering (RT) and premature cycling) using a dataset of respiratory cycles recorded from 11 patients. Mechanical ventilation experts with access to the Pes signal annotated 12.337 respiratory cycles to create a gold standard dataset. Several techniques for a potential class imbalance problem, as well as several changes to the initial model architecture, were investigated. A leave-one-patient-out cross-validation technique was used to evaluate model performance. The proposed Pes-based 2DCNN (Pes_2DCNN) was compared to a similar model based solely on the ventilator Paw and flow-time signals (PF_2DCNN). Results: The proposed Pes_2DCNN exhibited superior performance in detecting RT as compared to PF_2DCNN in terms of area under the receiver operating characteristic (AUROC) (0.80 ± 0.07 vs. 0.75 ± 0.13, respectively; p < 0.01). Furthermore, the results indicate that the class imbalance solutions did not improve the performance for detection of RT. For detection of premature cycling, Pes_2DCNN also outperformed PF_2DCNN in terms of AUROC (0.88 ± 0.09 vs. 0.71 ± 0.24, respectively; p < 0.01). Conclusion: The findings of this study suggest the added value of the Pes signal in detection of RT and premature cycling. However, because this is a preliminary study, more research is required to further investigate the importance of the Pes signal in PVA detection.Technical Medicine | Sensing and Stimulatio
Fully differential active inductor for CMOS active filter applications
No full textInternational audienc
The languages of Abdelhak Serhane, an Arab-French hybridity of a Moroccan novelist, followed by a full translation, in Arabic language, of the novel Les Temps Noirs, written in French by the same author
No full textCette thèse présente une étude assez complète du roman Les Temps noirs d’Abdelhak Serhane en vue de mettre en avant son esthétique littéraire. Après un travail de contextualisation de la littérature maghrébine d’expression française, le travail de recherche se prolonge par une analyse littéraire du roman Les Temps noirs, ensuite par une étude du métissage arabo-français qui sous-tend l’écriture littéraire de cet écrivain marocain dans son roman. Enfin, c’est à l’analyse de la traduction intégrale du roman Les Temps noirs en langue arabe, que se consacre le travail de recherche, en vue d’étudier le passage des figures du métissage dans le texte traduit par l’auteure de la thèse, tout en s’appuyant sur l’apport théorique et critique d’Antoine Berman.The aim of this thesis is to present a rather complete study of Abdelhak Serhane’s novel Les Temps noirs, in order to highlight its literary aesthetic. After contextualizing the Maghrebi literature of French expression, the research is prolonged by a literary analysis of Les Temps noirs, then by a study of the Arab-French hybridity which underlies the literary writing of the Moroccan novelist. Finally, it is to the analysis of Les Temps noirs’s translation in arabic that this research work is dedicated, in order to study the passage of figures of hybridity in the text translated by the author of this thesis while relying on the theoretical and critical contribution of Antoine Berman
