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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Digitalt och fysiskt? En studie om hur digitala kanaler kan kombineras med fysiska butiker inom möbelbranschen

Zejnilovic, Majda January 2020 (has links)
I samband med att e-handeln på bara några få år ökat är teknologin ett verktyg för företag att växa. Följande studie undersöker därmed hur företag inom möbelbranschen knyter an sina digitala kanaler med fysiska butiker och ifall de använder sig av digital capabilities. Vidare diskuterar studien hur digitaliseringen påverkat handeln och hur det kommer att se ut framöver. Undersökningen är genomförd med en kvalitativ metod genom intervjuer med sex respondenter i kombination med en kvantitativ metod i form av en webbenkät. Resultatet visar att det i princip krävs en fysisk butik som ett komplement till de digitala kanalerna för att företagen ska få ett ökat värde, både gentemot kund men också gentemot företag. Vidare visar resultatet också att respondenterna inte är insatta i användningen av den nya teknologin i samband med digital capabilities. I diskussionen förklaras hur möbelföretag kan kombinera sina digitala kanaler med sina fysiska butiker, vad som krävs för att frodas i den digitala världen och hur företagen förhåller sig till digital capabilities. / Within a few years e-commerce has grown, which leads to that technology has become a tool for companies to grow. This study examines how companies in the furniture industry associate and combine their digital channels with their physical channels and if they aim to use digital capabilities. The study also discusses how digitalization has affected the trade and what it will look like in the future. The survey was conducted using a qualitative method through interviews with six respondents. The result shows that a physical store is needed as a complement to the digital channels in order for companies to gain added value, both towards the customer, but also towards the company. Furthermore, the results also show that the respondents are not familiar with digital capabilities. The discussion explains how digital channels can be combined with physical stores, what it takes to thrive in the digital world and how the companies relate to digital capabilities.
2

Det fygitala intåget : En kvalitativ studie om hur olika företag i klädbranschen kan implementera fygital i sitt arbete / The entry of phygital : A qualitative study on how different companies in the fashion industry can implement phygital in their work

Albertsson, Emma, Wallin, Fanny, Westerlund, Mikaela January 2019 (has links)
Examensarbete, Programmet för Inredning- och butikskommunikation, Ekonomihögskolan Kalmar, Linnéuniveristetet. 2FE77E. VT19. Det fygitala intåget av Emma Albertsson, Fanny Wallin och Mikaela Westerlund Bakgrund: Från att den svenska handeln började med vandrande knallar på landsbygden till att utvecklas mot att låta kunden plocka varorna själv, det här var starten för detaljhandelsbranschen. När utveckling tillkommit blev det en multikanal som sedan utvecklades till en omnikanal. Från omnikanal utvecklades fygital som är aktuell för denna studie. Där de fysiska kanalerna sammanflätas med de digitala kanalerna och blir till en kanal. Frågeställning & Syfte: Studiens frågeställning är: Hur arbetar konsultföretag respektive onlinebutik och fysisk butik i klädbranschen med fygital? Syftet med studien är att få en ökad förståelse i hur de olika företagen i klädbranschen använder sig av fygital. Detta för att bidra med kunskap om vad fygital står för, samt vilka likheter och skillnader som existerar mellan företagen. Metod: Studien innefattar en kvalitativ metod med ett hermeneutiskt synsätt, genom en deduktiv ansats med induktiva inslag. Insamlingen av empiri har utförts genom semistrukturerade intervjuer med representanter från tre konsultföretag, en onlinebutik och en fysisk butik. Slutsats: Studiens resultat visar på att det fygitala inte går att förbise då digitaliseringen utvecklas konstant. Utvecklingen av digitalisering påverkar den fysiska butiken genom att butikerna kan bli mindre samtidigt som de kan erbjuda företagens hela sortiment. Därmed blir de digitala kanalerna inte en konkurrent till de fysiska kanalerna utan ett komplement till varandra då de fyller ut varandras brister. I framtiden kommer det omfatta en förändring och utveckling för att det fygitala ska samspela på bästa sätt. / Bachelor thesis, Interior design and visual merchandising at School of business and economic Kalmar, Linnaeus university. 2FE77E. Spring of 2019. The entry of phygital by Emma Albertsson, Fanny Wallin och Mikaela Westerlund Background: The Swedish trade market began from wandering itinerant out on the countryside to stores where customers could pick the goods by themselves, this was the beginning of the development into becoming the retail industry which is still ongoing today. The companies had to make changes to go from multi-channels to omni-channels. And omni-channels led to new development called phygital, where the physical channels are intertwined with the digital channels to become one. This is what this thesis is aiming to study. Reserarch question & Purpose: The research question of the study is: How do consulting-firms, online stores and physical stores work in the clothing business with phygital? The purpose of the study is to gain an increased understanding of how the various companies in the clothing business are using phygital. This is to contribute with knowledge of what phygital stands for, as well as which similarities and differences exist between the companies. Method: This study involves a qualitative method with a hermeneutic approach, through a deductive approach with inductive elements. The collection of empirical data has been carried out through semi-structured interviews with representatives from three consulting-firms, one online store and one physical store. Conclusion: The conclusion of the study shows that the digitization is constantly evolving which makes the digitalisation hard to surpass. The physical store becomes affected by the development of the digitization because it enables the physical stores to become smaller while still being able to offer the entire range of the companies supply. Thus, the digital channel do not become a competitor to the physical channels, but a complement to each other as they fill out the absences of each other. In the future it will evolve and change for the fygital channels to interact in the best way possible.
3

Modely systému LTE / LTE system models

Navrátil, Petr January 2013 (has links)
Master’s thesis is focused on part of mobile network named LTE. Project is analyzes the LTE physical layer, which is divided into four basic parts: Physical channels and modulation, Multiplexing and channel coding, Physical layer procedures, Physical layer measurements. Every part is described by actual 3GPP standard [1]. To understand the problem is expected a reader basic knowledge of OFDM systems, which the LTE system uses. The next part of this master’s thesis is dedicated to mathematic model physical layer of system LTE, created by program Matlab. This model is designed to measure errors in data transmission.
4

Μελέτη φυσικού επιπέδου τηλεπικοινωνιακών συστημάτων 3ης γενιάς και εξομοίωση καναλιού PRACH ανερχόμενης ζεύξης κατά την προτυποποίηση 3GPP

Παναγιωτακοπούλου, Αγγελική 15 January 2009 (has links)
Η παρούσα διπλωματική εργασία έγινε στα πλαίσια του Προγράμματος Μεταπτυχιακών Σπουδών Ηλεκτρονικής και Υπολογιστών, στο Τμήμα Φυσικής του Πανεπιστημίου Πατρών. Αντικείμενό της αποτελεί η μελέτη του φυσικού επιπέδου συστημάτων κινητής τηλεφωνίας τρίτης γενιάς και η εξομοίωση χαρακτηριστικού καναλιού του φυσικού επιπέδου σύμφωνα με την παγκόσμια προτυποποίηση 3GPP. Στο πρώτο κεφάλαιο γίνεται ιστορική ανασκόπηση των συστημάτων προηγούμενων γενεών. Αναφέρονται βασικά προβλήματα που πρέπει να αντιμετωπίσει ένα τηλεπικοινωνιακό σύστημα καθώς και η βασική δομή των κυψελοειδών συστημάτων. Γίνεται εισαγωγή στα συστήματα τρίτης γενιάς ως προς τις απαιτήσεις, τις υπηρεσίες που προσφέρουν, την προτυποποίηση και την αρχιτεκτονική τους. Στο δεύτερο κεφάλαιο μελετώνται οι τρόποι πολλαπλής πρόσβασης με ιδιαίτερη έμφαση στην προσπέλαση με διαίρεση κωδικών. Αναλύονται τα συστήματα διάχυσης φάσματος. Γίνεται εκτενής αναφορά και υλοποίηση προγραμμάτων για τις ψευδοτυχαίες ακολουθίες και τις ακολουθίες Gold. Στο τρίτο κεφάλαιο μελετάται η δομή δικτύων επικοινωνίας κατά το μοντέλο OSI. Αναφέρονται τα επίπεδα των τηλεπικοινωνιακών συστημάτων με διεξοδική μελέτη του φυσικού επιπέδου και στις διεπαφές που χρησιμοποιεί για επικοινωνία καθώς και στις υπηρεσίες που προσφέρει. Αναλύεται η δομή όλων των φυσικών καναλιών και εξομοιώνεται η διαδικασία ενθυλάκωσης του καναλιού PRACH. Στο τέταρτο κεφάλαιο αναλύονται οι κώδικες διάχυσης των φυσικών καναλιών ανερχόμενης ζεύξης καθώς και η διαδικασία διάχυσης τους. Δημιουργούνται προγράμματα που παράγουν αυτούς τους κώδικες και γίνεται εξομοίωση της διάχυσης και της αποδιάχυσης του PRACH καναλιού. Στο πέμπτο κεφάλαιο αναφέρεται η διαδικασία κωδικοποίησης πηγής και μελετάται η PSK διαμόρφωση και αποδιαμόρφωση που χρησιμοποιούν τα συστήματα τρίτης γενιάς. Υλοποιούνται προγράμματα που εξομοιώνουν τη συνολική διαδικασία σε ενθόρυβο κανάλι AWGN μελετώντας την επίδραση του θορύβου σε μεταδιδόμενο σήμα. Όλες οι εξομοιώσεις υλοποιήθηκαν με το πρόγραμμα Matlab 7.1. / This master thesis is a part of the post-graduate course of the Physics department of the University of Patras, on Electronics and Computers. Its main objective is the study of the physical layer of 3rd generation telecommunication systems and the simulation of a particular channel, in accordance to 3GPP specifications. In the first chapter we review telecommunication systems of previous generations. We also refer to major problems that need to be dealt with and also the basic structure of cellular networks. 3rd generation telecommunication systems, their requirements, offered services, standardisation and architecture are all introduced. In the second chapter we study multiple access methods, emphasising CDMA methods. Moreover, spread spectrum systems are analysed. Finally we refer to pseudorandom and Gold sequences. Programs are created which generate these sequences. In the third chapter we look into the structure of communication networks according to the OSI model. The layers of telecommunication systems are mentioned, laying emphasis on the physical layer, the interfaces used for communication as well as the offered services. We report all physical channels and we simulate the encapsulation of the PRACH channel. In the fourth chapter we analyse the spreading and scrambling codes referring to the uplink channels. Next we point out the code allocation process. Programs are created which generate these spreading and scrambling codes and we finally simulate the spreading and de-spreading process of the PRACH channel. In the fifth chapter we outline the source coding process using PCM, and we study PSK modulation and demodulation which are used by 3rd generation telecommunication systems. We create programs that simulate the whole procedure in a noisy channel, and we study the effect of AWGN. The programs were created and the simulations were run using Matlab version 7.1.

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