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Audio Fingerprinting - A Decomposing Study

Ljudfingeravtryck är en välkänd teknik som genererar unika fingeravtryck för ljudsignaler vilka som senare kan användas för identifiering. Ett välkänt exempel på detta är Shazam-applikationen vars koncept är att matcha en kort låtsnutt med en databas för att hitta namnet på låten och artisten. Generellt skapas ljudfingeravtrycken genom att applicera en tids-frekvens-transform på ljudsignalen och eAudio fingerprinting is a widely employed technique that involves generating unique fingerprints for given audio signals that later can be used for identification. A well-known example of this is the Shazam application where the concept is to match a short song snippet with a database to find the name of the song and artist. Generally, the audio fingerprints are created by applying a time-frequenc

Boulognerskogen - rum i naturum

Gavleån slingrar sig mellan Storsjön och Gävlebukten, längs med ån omsluter sig två betydande grönområden i de centrala delarna av Gävle. Stadsparken Boulognerskogen och Valls Hage arboretum. De har en varierande natur, en hög rikedom av biologisk mångfald och ekosystemtjänster. Dessa områden fungerar som stadens gröna infrastruktur. Trots sina kvaliteter har Boulognerskogen och Valls Hage olika fGavleån meanders between Storsjön and Gävlebukten, the river surrounds two significant green areas in the central parts of Gävle. Boulognerskogen city park and Valls Hage arboretum. They have a varied nature, a high richness of biodiversity, and ecosystem services. These areas serve as the city’s green infrastructure. Despite their assets, Boulognerskogen and Valls Hage have different qualities as

Spatio-temporal characterization of intense ultrashort laser pulses

When ultrashort pulses pass through common optical elements such as gratings and thick lenses, they can pick up spatio-temporal couplings (STCs) - nonseparable chromatic aberrations. The main cause of this phenomenon is the inherent feature of ultrashort pulses—their broadband spectrum. STCs increase pulse duration and reduce the intensity at the focus, which will be detrimental for many applicati

An Analysis of the Swedish Intraday Market

To fully decarbonise the energy system, electrification is needed as one of the most important strategies for reducing carbon dioxide emissions in Sweden and Europe. The deployment of renewable energy resources plays a central role in electrification and will continue to increase. In January 2024, Svenska Kraftnät published a long-term market analysis with four future scenarios regarding the devel

Engaging with Nature through Food in Urban Spaces: Alternative Food Initiatives Cultivating Changes in Bogotá

This research analyses how different food initiatives in Bogotá shape socio-natural relations through their food practices to realise the transformations they envision, advocate and cultivate. Using a decolonial and relational approach, the study examines how these initiatives challenge the dominant food system's focus on economic values and instead advocate values based on care and interdepen

Religionens undanskymda plats inom familjerådgivning: en kvalitativ studie där åtta familjerådgivare delar med sig av sina erfarenheter

Amerikansk kurslitteratur och internationell forskning som förekommer på psykoterapeutprogrammets familjeinriktade gren poängterar inte sällan vikten av klienternas religiösa tro och att denna omtalas under terapeutiska sessioner med par. Motsvarigheten i svensk kurslitteratur och praxis upplevdes inte gå att finna, varför det har känts meningsfullt att undersöka hur ämnet talas om inom svensk faU.S. course literature and international research that appears at the psychotherapy program's fam. It is not uncommon for the discipline to emphasize the importance of the clients' religious beliefs and that this is brought up during therapeutic sessions with couples. The correspondence in Swedish course literature and practice was not perceived to be found, which is why it has felt meanin

Röntgensjuksköterskans upplevelse i mötet med barn som misstänks fara illa

Bakgrund: Det finns en underrapportering från hälso- och sjukvårdspersonal avseende barn som misstänks fara illa, trots en lagstadgad anmälningsplikt. Röntgensjuksköterskor har en central roll i att identifiera barn som far illa och motverka att det existerande mörkertalet växer. Syfte: Att beskriva röntgensjuksköterskors upplevelser vid möten i den radiologiska verksamheten med barn som misstän

Business Angels' Investment Decisions: Exploring Entrepreneur’s Competencies as Criteria

This thesis aims to provide a deeper understanding of how Business Angels (BA) investment process and criteria are impacted by entrepreneurial competencies (EC) when assessing the founding team during the screening phase. This study reinforces the definition of entrepreneurial competencies by bringing a new perspective on how these competencies can be classified and enhances the implication of the

Imorgon blir jag mitt bästa jag: en netnografisk undersökning om unga kvinnors självförverkligandestrategier på TikTok

Denna uppsats undersöker hur och varför unga kvinnor väljer att publicera videor kopplat till självförverkligande och rutin på sociala medieplattformen TikTok. Uppsatsen har genomförts med hjälp av netnografisk metod samt tematisk innehållsanalys. Under denna process uppstod fyra teman vilka datan har kodats efter; utseende, konsumism, tid och självförverkligande. Insamlingen av datan skedde med h

“Welcome to the Best Workplace in the World!” - A qualitative study on new employees’ introductions and socialization processes

Introducing a new employee into an organization is a critical time for the individual and the organization in question. Successful introductions can create high job satisfaction, increased performance, organizational commitment, and social integration – also called organizational socialization. There are many benefits of a successful socialization process; therefore, understanding what new employe

Modeling of Enzymatic Reaction for Pharmaceutical Production

By modeling of an enzymatic reaction for pharmaceutical production it is possible to get a better understand the mechanism of the enzymatic reaction, and to find an optimal condition for the process step. The enzyme in question is enteropeptidase that cleaves proteins by hy-drolysis. Enteropeptidase can cleave at many different cleaving sites, if the amino acid Argi-nine or Lysine is at the first

Changing Gender Stereotypes: Exploring Women's Roles in Disaster Risk Management – A Systematic Literature Review

Natural disasters affect women disproportionately. With the current literature bias of focusing on women’s vulnerabilities towards natural disasters, this paper aims to investigate how women contribute to the mitigation, preparedness, response and recovery of natural disasters, viz. the disaster management cycle (DMC). Through a systematic literature review with exploratory aspects, this paper ana

The Lifetime and Future of Double Clusters – Why There are so Few Observed Binary Star Clusters

Binary open star clusters within the Milky Way are rare. Only 14 candidates have been confirmed with new Gaia data (Song et al. 2022). The number of binary clusters expected to form from stellar aggregates in the Milky Way is likely more than five times higher than this (Darma et al. 2021), (Kharchenko et al. 2012). Using the N-body simulation program NBODY6 we simulate two known open clusters; th

Comparison of two software toolboxes for the simulation of quantum systems in the context of coherent multidimensional spectroscopy

Simulations are an indispensable tool in physics because they complement experiments, especially complex ones. Coherent multidimensional spectroscopy (CMDS) is such a complex experimental setup. In CMDS, the molecular system of interest interacts with two to four coherent laser pulses and the generated emission provides information about the energetic structure and the relaxation dynamics of the p

Robust Extraction of Respiratory Signals from ECG

Potentialen och kraften i EKG-signaler: Undersökning av andingssignaler från EKG vid olika hjärtrytmer Det här projektet handlar om att få ut andningssignaler med hjälp av data som samlas in när du besöker läkaren eller sjukhuset. För äldre personer eller de med hjärtrytmstörningar kan information om andning hjälpa läkaren att välja rätt medicin. Andningen spelar en central roll inte bara i att bAtrial fibrillation is one of the most common supraventricular tachyarrhythmias. With an aging population and the increasing prevalence of atrial fibrillation worldwide, reliable and continuous monitoring systems that can capture respiratory information under varying medical conditions are needed. This study investigates and compares respiration signal extraction methods derived from electrocardio

Study on Early Hydration Reactions of Cement Clinker using Isothermal Calorimetry - Influence of C3A Content, SO3 Content, Blaine Number and Mixing Type

Cement är ett av världens mest använda material och agerar som bindemedel i betong och murbruk. Portlandcement, som är den mest förekommande typen av cement, produceras årligen i en kvantitet av fyra miljarder ton. Cementproduktionen står för ca 7 % av de globala koldioxidutsläppen och det finns ett stort intresse i att hitta alternativa vägar och optimeringsmöjligheter, för att minimera klimatpåvCement is one of the world's most used materials and acts as a binder in concrete and mortar. Portland cement, which is the most common type of cement, is produced annually in a quantity of four billion metric tons. Cement production accounts for approximately 7 % of the global carbon dioxide emissions and there is a great interest in finding alternative routes and optimization possibilities,

Integrating microalgae in wastewater treatment

Grönare avloppshantering med mikroalger I ett förändrat klimat ställs allt större krav på cirkulära lösningar. Från att ha varit ett kostsamt samhällsproblem, börjar avloppsvatten nu ses som en resurs som kan hjälpa till att minska människans avtryck på planeten. Men även som en resurs som kan generera inkomst för VA-bolag, och samtidigt minska kostnader för algindustrin. Det här examensarbetet uWith the growing need for sustainable wastewater management solutions, this master's thesis explored the use of microalgae, specifically Chlorella vulgaris, in the treatment of anaerobically digested black water (AnBW). The study assessed the viability of using AnBW as a growth medium for microalgae to recover nutrients and produce biomass. Through controlled laboratory experiments, the effect