Active Learning för annotationseffektivitet inom detektion av kaffebärssjukdom Två veckor och trettitusen bär senare så har jag nu äntligen lyckats rita rutor kring varje bär, allt för att min AI-modell ska bli så bra som möjligt. Blicken börjar sina och det repetitiva arbetet har gjort mig snurrig. Om det ändå hade funnits något bättre sätt tänker jag för mig själv, eller det kanske det gör? SnaArabica coffee production in Africa has declined significantly over the last half century, partly due to Coffee Berry Disease (CBD), caused by the fungus Colletotrichum kahawae. This disease results in substantial economic losses, estimated at USD 350- 500 million annually. Recent advancements in machine learning (ML) and computer vision offer powerful tools for disease detection. However, annotat

This thesis, initiated by Thule Group, investigated how an ultra-lightweight roof top tent could be developed to improve and simplify the user experience during installation and use. The aim of the project was to design a roof top tent for two people, which could be handled and mounted on a car by one person. During the project, Double Diamond together with a human-centred design approach was use

This paper focuses on particular immigrant groups, examining the integration extent between the US-born whites and first- and second generation immigrants during the Age of Mass Migration. From empirical evidence in this paper, I find that immigrants suffered an income penalty in the labor market, and second generation were more integrated into the US labor market. Immigrants with greater cult

EU:s Green Deal och Sveriges ambitiösa mål om klimatneutralitet år 2045 har satt fart på omställning till ett fossilneutralt samhälle. En nyckelkomponent för denna transformation är den gröna vätgasen. Detta är en lovande energibärare som har potential att revolutionera vårt sätt att använda resurser och leda oss mot en mer hållbar framtid. Tillämpningen av denna växer fram naturligt i regioner meGreen hydrogen is one of the key solutions for industrial decarbonization in sectors that cannot be easily electrified, however, the technology faces profitability challenges. The European Union mitigates these issues through various grants. This study, in collaboration with Kraftringen, examines an investment in a hydrogen system to address these challenges. The major aims include understanding e

En medvetenhet och högre krav på naturliga ingredienser hos konsumenter får företag att försöka minska på e-nummer och tillsatser i sina produkter. För att ändra befintliga recept och ta bort tillsatser krävs det undersökningar och tester. I denna studie undersöks möjligheten att ta bort ett av två konserveringsmedel i en befintlig produkt utan att riskera den mikrobiella säkerheten. Det är mång

Globala servicenivåmål och lagerkrav i distributionssystemet hos en tillverkare av industrigods Hur kan ett industriföretag se till att deras produkter finns tillgängliga när och där kunderna behöver dem? Tänk att en båttillverkare i Australien behöver en specifik båtmotor och de vill inte vänta i månader på att motorn ska levereras från Sverige. Det är då lageroptimering kommer in i bilden. GenoTitle: Global service level targets and stock requirements in the distribution system of a manufacturer of industrial goods Authors: Nils Holmqvist & Hugo Lundholm Supervisors: Johan Marklund, LTH | Lisa Thorsell, Volvo Penta Background: Volvo Penta is facing challenges in inventory management of marine engines in remote markets. Currently, a Make-To-Stock (MTS) strategy is used for specifi

The release of carbon dioxide (CO2) from inland waters plays an important role in the global carbon cycle. Yet, there are uncertainties related to estimating riverine CO2 evasion (FCO2), especially in data scarce regions such as the Tibetan Plateau. It is unclear how global change in the form of climate warming and anthropogenic disturbance affects emissions. This study reports annual CO2 fluxes a

This study examines various risks associated with the use of artificial intelligence (AI), which have become increasingly relevant as the technology rapidly develops and integrates into society. The risks have been categorized into six main areas: technological, data- and analytical, informational and communicational, economic, social, ethical and legal and regulatory. These areas include challeng

As a response to a changing climate and a growing population that increases the current unsustainable, industrialisation of agriculture, sustainable agricultural practices have gained interest globally. Regenerative agriculture was first mentioned in the 1980s but didn’t gain interest until recently. The research around regenerative agriculture is limited, especially concerning the recent growing

This thesis has investigated the potential of combining Raman spectroscopy with Sheimpflug Light Detection and Ranging (lidar) for simultaneous characterization and ranging of aerosolized soot. The first part of the project involved the implementation of conventional non-ranging Raman spectroscopy for both deposited and aerosolized soot. The second part constituted the design, modelling, and evalu

This work evaluates the efficiency and quality of drug substance and product automated sample preparation for liquid chromatography analysis in comparison to the manual preparation technique. Despite the potential advantages of process automation in improving efficiency, accuracy, and precision while reducing time and resources, sample preparation in the early phases of drug development in the ph

In the face of intense market competition, businesses often engage in M&A activities to rapidly enlarge their market penetration to strengthen their industry position, thereby gaining a competitive advantage and facilitating economies of scale, reducing per-unit costs of production and management. Through M&A activities, companies can share resources such as production facilities, research

We extend the capabilities of a LEED instrument to allow raster scanning across entire samples, giving a map of LEED patterns. The method gives a macroscopic view of the inhomogeneity and quality of samples, and we propose that the usage of LEED scanning as a simple alternative to more complex methods has viable uses during sample preparation, without the need for costly beamtime. Results from inh

Denna studie undersökte samband mellan olika vidmakthållande faktorer vid rasism (delstudie 2) och sambandet mellan rasismens konsekvenser för de drabbade (delstudie 1). Studien undersökte två populationer; icke-vita personer (delstudie 1) och vita personer (delstudie 2). Gruppen icke-vita (n=163) besvarade enkäter om minoritetsstress, upplevd diskriminering, upplevda motreaktioner från vita och lThis study explored the relationship between different factors maintaining racism (study 2) and the relationship between the consequences of racism for those exposed to it (study 1). The study examined two separate populations; people of color (study 1) and white people (study 2). People of color (n=163) answered surveys regarding minority stress, experience of discrimination, experienced white co

Syftet med denna undersökning är att analysera kodväxling mellan svenska och engelska i Sveriges Radios program. Studien visar hur mycket kodväxling som förekommer, vilka funktioner kodväxling har i samtalet samt hur växlingarna hanteras av samtalsdeltagarna. Materialet består av 240 minuters samtalstid från fyra olika radioprogram. Genom samtalsanalys kategoriseras kodväxlingarna i analyskategori

Destillation: Nyckeln för hållbara bioraffinaderier? I jakten på hållbara energilösningar har biobränslen seglat upp som en lovande kandidat. Att producera dem hållbart och effektivt är dock inte utan sina utmaningar. Ett avgörande steg i en ny lovande process är användningen och återvinningen av de stora mängder lösningsmedel som används, vilket kan ha avgörande ekonomiska och miljömässiga fördelRecycling solvents used in the synthesis of biofuels is of great importance to create a sustainable process and economic benefits. This thesis investigates the recycling of ethanol and butanol from bio-oil, which are used as solvents in a biorefinery process. Distillation showed high potential and was further investigated through simulations and laboratory verification. The study utilized the NRTL

Sverige har ett nationellt mål om att minska utsläppen av växthusgaser från inrikes transporter med 70% fram till år 2030. För att minska dessa utsläpp beslöt Sverige år 2017 om den så kallade reduktionsplikten, som innefattar ett krav på att successivt öka inblandning av biodrivmedel i diesel och bensin. Stigande drivmedelspriser har sen dess fått flera partier att vända sig mot reduktionspliThe Greenhouse Gas Reduction Mandate (GGRM, reduktionsplikten) is Swedish legislation focused on reducing carbon emissions by mandating that the emissions of certain fuels are reduced by a specified percentage, that percentage increasing each year. This paper investigates the rationale behind a political drive to decrease the GGRM, the cost-effectiveness of the GGRM, and the consequences of t

In the past decade, there has been a major shift in automotive propulsion systems from fossil fuel vehicles to environmentally friendly, zero-emission transportation. This has made hydrogen-powered vehicles a hot topic. Volvo Group has launched a fuel cell truck to promote energy transition. A fuel cell consists of two electrodes (anode and cathode) and an electrolyte membrane inserted between the

Klimatförändringarna förväntas påverka alla världens regioner negativt med bland annat intensifiering av lokala översvämningar och värmeböljor. För att förebygga dessa effekter är det avgörande att utveckla anpassningsbara och tåliga städer. Naturbaserade lösningar (NBS) har pekats ut som ett av de viktigaste verktygen i klimatanpassningsarbetet. Trots en ökad kunskap om NBS många fördelar kvarståThe ongoing climate changes pose a serious threat to both societies and ecosystems globally. Intensification of extreme weather, floods in combination with heat waves and droughts are some of the challenges that require adaptable and sustainable solutions. Nature-based solutions (NBS) have been identified as a powerful tool for creating resilient and sustainable cities by integrating natural proce