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Comparing seawater desalination technologies for green hydrogen production: Reverse Osmosis and Multi-Effect Distillation

Grön vätgas har lagts fram som en lösning på en av vår tids största utmaningar: Att klara av världens energiförsörjning samtidigt som de fossila bränslena avvecklas. Framför allt i sektorer som industriell kemikalieproduktion och långdistans-transport, där övergången till förnybar elektricitet är svårare. Grön vätgas produceras genom elektrolys, där en elektrisk ström driver den annars icke-spontaDue to increasing global energy demands and a need to move away from non-renewable energy sources, green hydrogen is now being considered as a possible replacement for fossil-based energy sources. Especially in “hard-to-abate” sectors, such as steel and petrochemical production, and long-distance transport, where the change to renewable electricity is more difficult. Green hydrogen is produced thr

Optimizing Finished Goods Safety Stock Levels at a Swedish Food Company

With rising interest rates increasing the cost of capital, businesses are focusing on reducing expenses. Tied-up capital, largely represented by inventory, is a critical cost driver. Therefore, optimizing inventory levels is crucial for controlling capital costs. Inventory levels consist of cycle stock and safety stock. Cycle stock covers average demand during replenishment, while safety stock mit

Dynamic Hedging Errors and Investment Banking Profits

This article classifies the option hedging strategies of investment banks, explains why dynamic hedges produce hedge errors in imperfect markets, and studies the magnitude and direction of hedge errors produced by different types of options under different hedging strategies. With the help of deep learning models, we predict prices in the next day and actively hedge, overcoming the losses caused b

Framtidens Energilandskap: Energidelning och Energigemenskaper - En intervjustudie

Denna studie undersöker faktorer som påverkar bildandet av energigemenskaper och utbredningen av eldelning i Sverige. De regulatoriska omständigheterna, samhällsnyttorna och nyttorna utifrån en fastighetsägares perspektiv undersöks genom intervjuer med experter och aktörer inom fastighetssektorn. Resultaten visar att det sker en förändring i vad elanvändare efterfrågar från elsystemet, att flexibi

Expression and Purification of BoGal36A Wild-type and W297F Mutant

This study investigated the enzyme BoGal36A, produced by the gut bacterium Bacteroides ovatus. BoGal36A is an alpha-galactosidase, an enzyme that breaks down complex sugars. Unlike most alpha-galactosidases from the GH36 family, BoGal36A appears to cleave internal glycosidic bonds. In this study, the wild-type BoGal36A and mutant W297F was expressed in E. coli BL21 (DE3) cells and purified subsequ

En frisk fläkt i familjeföretag

Abstract Title: A breath of fresh air in family business: A qualitative study on non-family CEOs’ experiences in family businesses Seminar date: May 30th 2024 Course: FEKH49 – Business Administration: Bachelor’s degree project in organization. Undergraduate level, 15 credits. Authors: Jakob Jubner-Keränen, Filip Nyzell & Else Änggårdh Advisor: Nadja Sörgärde Keywords: Family firm, non fa

Simulated Annealing Design of Time-Domain Coding for FMCW Radar Coexistence

For range, velocity and angle measurements, radar is a common technique to use, be it in the automotive industry, defense industry, or for medical purposes. Radars can achieve accurate measurements while also being unaffected by weather conditions such as rain, fog, or backlight. In many use cases, it might be necessary to use several radar units, which in turn allows for the possibility of causin

Applying BROOK90 to model the Water Balance of the spruce forest in Hyltemossa, Sweden

This thesis evaluated the performance of the water balance model BROOK90 for an even aged spruce forest in southern Sweden. The water balance of the forest was modelled from 1950 onwards to find periods and patterns of drought. Moreover, the impact of climate change as well as thinning as a strategy to reduce drought stress on the water balance were evaluated. Hyltemossa, a managed Norway spruce f

Digitala tvillingar som testverktyg för automationssystem

Inom vattenhantering och rening används olika processer och teknologier för att säkerställa att vatten är säkert att konsumera och att avloppsvatten hanteras på ett miljövänligt sätt. För att kontrollera dessa processer och säkerställa ett stabilt flöde och en säker process används olika automatiserade system. Dessa automationssystem kontrollerar allt från olika flöden genom pumpar och ventiler, t

Integrating biodiversity in Life Cycle Impact Assessments - An overview from a forest management land use perspective

För en framgångsrik ”grön omställning”, med ett samhälle och industri som går i samklang med klimatet och miljön, behövs nya tillvägagångssätt, prioriteringar och verktyg. Det blir mer och mer självklart för företag och organisationer att sätta upp mål och arbeta strategiskt för att minska sin klimatpåverkan. Men i ny EU lagstiftning ingår det även att ta hänsyn till biologisk mångfald. Den snabbaThis study presents a systematic overview and mapping of potential metrics for evaluating the impact of forest management on biodiversity in Swedish forestry. The primary approach involves quantitative Life Cycle Impact Assessments (LCIA) as part of Life Cycle Assessments (LCA). Given the increasing need to integrate the impact on biodiversity into complex value chains, the absence of a standardis

The Effects of the Swedish Higher Education Act on Sustainable Development Integration in Business Schools Syllabi: A case study of Lund University School of Economics and Management

Challenges connected to unsustainable practices are becoming more prominent in society and higher education can aid in promoting sustainability. Swedish universities are since 2006 regulated by law to integrate sustainability into their practices, therefore, this thesis uses qualitative analysis to investigate if the law has promoted integration of sustainable development in the syllabi of a Swedi

To what extent can Islamic financial principles be used to prevent financial crises? - A 2008 Financial Crisis case study

The 2008 financial crisis exposed significant weaknesses within the global financial system which were mostly attributed to the practices of financialization. This thesis explores the potential of Islamic finance principles to prevent financial crises while offering a more stable and equitable financial framework. A qualitative approach was used in order to conduct interviews with various professi

Exploring the Potential of Enzymes to Combat Acne

Acne vulgaris is a widespread skin disease affecting approximately 9.4 % of the population. It arises from four primary factors: increased sebum production, hyperkeratinization, bacterial colonization, and inflammation, leading to both non-inflammatory and inflammatory lesions. Current treatments include topical and systemic anti-inflammatory agents, antibiotics, and retinols, which often have adv

Battery Energy Storage System Size Optimization for Energy Shifting and Constant Power Delivery - the Benefits of the System Integration with Solar Farms in Sweden

This master's thesis, in collaboration with Comsys AB, examines the optimal size of a Battery Energy Storage System (BESS) for two services - energy shifting and constant power delivery across the four price areas SE1, SE2, SE3, and SE4 in Sweden. For energy shifting applications, the optimal storage capacities were found to be 20 MWh (2 MWh/MW) in SE1, SE2, and SE4. However, a 0.5 MWh/MW stor

MIFO inventering av deponier, kemtvätt och brandövningsplats med fokus på PFAS

PFAS är en grupp av 10 000 människoskapade ämnen, kända för sina fett-, smuts- och vattenavstötande egenskaper, som använts sedan 1950-talet. De användes i bland annat brandskum, textiler och kosmetika. PFAS är mycket svårnedbrutna, de ansamlas i naturen och människor från intag av vatten, växter och djur. Det har visats att PFAS är vara farligt, PFAS kan negativt påverka reproduktions-, och hormoThis study focuses on PFAS-pollution, specifically the pollution situation for four objects in Svedala municipality. Per- and Polyfluorinated Chemicals (PFAS) has been used widely since the 1950s and spread because of anthropogenic activities, due to their characteristics, such as dirt-, grease, and water repellent properties in cosmetics, textiles and fire extinguishers. PFAS has shown to be pers

No More Bets: Labour Trafficking through Online Scams in Southeast Asia

This thesis examines an unconventional issue of human trafficking, which has arisen very recently in the Southeast Asia region. An increasing number of scam centres have been identified, wherein trafficking victims were recruited to operate online fraudulent schemes. This emerging trafficking phenomenon exhibits distinctive characteristics compared to the traditional one, including the flow of mig

Transforming Uncertainty into Opportunity Investigating Stakeholder Perceptions Across the Value Chain in Denmark’s Circular Building Material Waste Supply Chain

The construction industry generates a significant amount of waste and serious environmental impacts. Denmark has an ambitious climate goal to stay within the 1.5-2.0-degree target and transition to a circular economy. However, transitioning away from the well-accepted linear take-make-waste model triggers uncertainty and risk among stakeholders across the value chain within the supply chain for bu