Tänk om vi kunde minska utsläppen av koldioxid och samtidigt hitta en återvinningsprocess för ett material som vanligtvis anses oåtervinningsbart. Detta examensarbete gör just detta. Hittar den bästa processen för att producera ett cementlikt material från kasserad glasull Materialitet kallas geopolymerer. Geopolymerer ar vanligtvis en blandning av lera med ett högt kisel innehåll och en basisk vGeopolymers are amorphous inorganic polymeric structures. They are used as binding agents and can be compared to cementitious materials such as ordinary Portland cement. This thesis aims to produce geopolymers from waste glass wool. Today glass wool is found in isolation, both thermal and sound insulation, and it is not being recycled. Most of the glass wool waste ends in landfills. Studies have b

Utvärdering av testmetod för bestämning av skjuvstyvhet för korslimmat trä Byggbranschen står inför stora utmaningar de kommande åren. Cirka 20% av Sveriges totala utsläpp av växthusgaser kommer från just denna bransch. Betong, som länge varit ett tryggt och pålitligt val är en av bovarna i dramat. Nya mer klimatsmarta byggmaterial är därför ett måste. Ett allt mer populärt alternativ till betonCross laminated timber (CLT) is an engineered wood product that was first developed in the 1990s. Since then it has grown in popularity thanks to its many advantages such as: low environment impact, high degree of prefabrication and low weight. As the material is relatively new the standardization process is still in the early stages. The purpose of this thesis is to evaluate a testing method whic

Despite developments in economic growth theory, the importance of savings and investment has remained consistent. It intrinsically connects to the importance of functioning financial intermediation and high levels of financial inclusion. While Sub-Saharan Africa still lags, Tanzania has during the last decade seen a rapid rise in mobile money services. This paper attempts to answer the potential o

In 2002 the Budapest Open Access Initiative was born, and shortly thereafter in 2003 the Bethesda Statement and the Berlin Declaration followed suit. These three initiatives are frequently viewed as the ground staples of the Open Access movement, and promoted free access to academic journals for everyone with an internet connection. These three initiatives has been studied in this essay, as well a

This essay introduces the sequential Good-Turing estimator and reviews the Good-Turing, Good-Toulmin and smoothed Good-Toulmin estimators. Some theoretical properties and drawbacks of the estimators are described. MonteCarlo simulation is then used to compare the performance of the sequential Good-Turing estimator to the performance of the Good-Toulmin estimator along with the smoothed Good-Toulmi

Bioprinting is the act of using a 3D-printer in order to make structures out of materials that contain living cells. A big problem with this is that there is no defined standard for how this bioink should be made or what characteristics it should possess. This report intends to establish a set of criterias with which to evaluate the quality of the hydrogel used to create a bioink. This project wil

Examensarbetets titel: “Viskleken slutar aldrig bra”: En studie om hur medarbetare uppfattar intern kommunikation under samhällskriser. Seminariedatum: 2 Juni 2022 Kurs: FEKH49, Examensarbete i organisation på kandidatnivå, 15 hp Författare: Ebba Hoffenback, Emily Ludvigsson, Fredrik Rothstein, Thea Wadell Handledare: Christine Blomquist Nyckelord: Intern kriskommunikation, Medarbetare, Samhällsk

This thesis examines sexual violence at festivals based on eleven interviews with people that have been to two popular festivals in Iceland, Eistnaflug, and Þjóðhátíð. The thesis seeks answers to three research questions; How are festivals characterized by festival attendees? How do festival attendees explain sexual violence at festivals? What preventive methods at festivals have festival attendee

Förintelsen är ett skrämmande exempel på vad som kan ske när man inte erkänner människors lika värde. Romerna, jämte judarna, var grupper som utsattes för nazisternas systematiska förföljelse på rasmässiga grunder. Trots en traumatisk historia fortsätter Förintelsen av romer att hamna i utkanten av minnespolitiken. Syftet med denna uppsats är att undersöka och analysera närvaron, bristen eller fråThe Holocaust is a frightening example of what can happen when one does not recognize the equal value of human beings. The Romani people, along the Jews, were groups that were exposed to systematic persecution on racial grounds by the Nazi regime. Despite a traumatic history, the Holocaust of Roma continues to end up on the outskirts. The objective of this paper, “To be realised to the extent one

The possibility of being able to examine the inside of the human body is the foundation of today’s medical diagnostics. This can be done through different imaging systems, where ultrasound is one of the most important imaging methods used. Ultrasound does not endanger the patient during examination, unlike other imaging systems that use ionizing radiation or strong magnetic fields. In order to obt

In this study, the quantitative relationship between the three dimensions of transformative capacity – cognitive, structural and agency – and the climate change performance of countries is examined. To do this, indexes are created and panel data regressions conducted. The result indicates a significant negative relationship between the cognitive and diversity dimension index and climate change per

Låga relativa fuktigheter inomhus orsakar negativa hälsoeffekter på människor. Vanligast uppkommer torrhetssymptom i ögon, näsa, hals och hud. Aktiv befuktning genom ventilationen i torra klimat kan vara en åtgärd, dock måste det analyseras ifall den extra fuktproduktionen kan orsaka fuktskador. Syftet med examensarbetet är att studera hur ytterväggen i ett kontor påverkas av en förhöjd relativ Low levels of relative humidity indoor has a negative effect on the health of people. Most commonly appears dryness symptoms in eyes, nose, throat, and skin. Humidification of the air through ventilation in dry environments could be a solution, though it must be analyzed if the extra moisture can cause any problems. The purpose is to study how the outer wall in the building will react to the ele

Människor spenderar en betydande del av sitt liv i arbete. I relation till detta är arbetstillfredsställelse viktigt för anställda och organisationer. Denna studie ämnade undersöka hur personlighet och relationen till ledare predicerar arbetstillfredsställelse. Personlighet mättes utifrån teorin om de fem personlighetsfaktorerna (Big Five), medan relation till ledare mättes genom Leader-member excPeople spend a substantial amount of their life at work. In relation to this job satisfaction is important for employees and organizations. The study’s aim was to examine if employee’s job satisfaction is predicted by personality and relationship to one’s leader. Personality was measured through the theory of five personality factors (Big Five), whilst relationship to one’s leader was measured thr

I och med digitaliseringen har möjligheterna att möta och kommunicera med likasinnade individer underlättats avsevärt. Digitala miljöer, såsom incelforum och radikalnationalistiska forum, har under senare år uppmärksammats på grund av deras koppling till olika våldsdåd. Forskning har tidigare pekat på att det finns en del paralleller mellan incelkulturen och den radikalnationalistiska kulturen, me

Title: After-Market Spare Parts Forecasting at Sandvik Stationary Crushing & Screening. Authors: Arian Marofkhani and Artur Jusopov Supervisors: Professor Gudrun Kiesmüller, Lund University, Faculty of Engineering, Division of Production Management. Macarena Ribalta, Planning & Logistics Manager, Sandvik Stationary Crushing & Screening. Examiner: Professor Johan Marklund, Lund Univ

Ferroelektricitet upptäcktes först 1921 av professorn Joseph Valasek i kaliumnatriumtartrat, ett ämne som är mer känt som "Rochelle salt". Valasek beskrev likheten mellan ferroelektricitet och det redan då väl beskrivna ferromagnetismen. Likt ferromagnetiska material och deras permanenta magnetiska poler uppvisar ferroelektiska material en permanent elektrisk polarisation, en separation The ferroelectric tunnel junction FTJ is a rather old concept but has recently been in the spotlight for its promising properties in computer memory technology and neuromorphic computing. The device consists of a ferroelectric insulator sandwiched between two electrodes, and by polarisation switching the resistance along the heterostructure can drastically be adjusted. The optimisation possibili

Parallellt med ett idag ständigt växande bostadsprekariat är samtalet om en samlad social bostadspolitik inom riksdagen frånvarande. Utanför parlamentet, däremot, vardar en ny bostadsrörelse. Med utgångspunkt i en underliggande jämförelse med den socialdemokratiska folkrörelsen ämnar uppsatsen studera vilka förutsättningar denna bostadsrörelse har att få politiskt inflytande. Via semistrukturerade

‘Killer acquisitions’ are fairly a new phenomenon which stems from a researcher’s study related to concerns from a series of mergers in the pharmaceutical industry (Big Pharma) around 2018. Killer acquisitions occur in the pharmaceutical sector and also in large digital and technological markets occupied by large companies (Big Tech). They are putting themselves into a position of overwhelming mar

Several studies have shown psychological safety to be one of the leading factors in creating an effective team. Nevertheless, there is very little academic research studying the challenges that appear in a hybrid work environment or which practices in fostering psychological safety may need to be adapted to create an effective team in such a work environment. With the growing trend of the hybrid w

För att möjliggöra omställningen från fossila kolväten har bioolja identifierats som ett viktigt verktyg. Bioolja refererar till ämnen med liknande egenskaper som traditionellt petroleum, men som produceras genom kontrollerad förbränning (pyrolys) av jord- och skogsbruksavfall. Bioolja har stor potential, eftersom dess kemisk-fysikaliska likhet till de fossila kolväten som redan används som bränslAn important stepping stone in transitioning from a fossil-fuel based transportation system is the production of bio-fuels such as bio-oils. For bio-oils to be commercially viable, catalytic upgrading via hydrodeoxygenation is required, typically using Ni-Mo oxide or sulfide catalysts. To optimise such processes, a thorough understanding of the catalyst is required. Spark discharge generation (SDG