• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 105
  • 75
  • 53
  • 4
  • Tagged with
  • 233
  • 131
  • 129
  • 129
  • 125
  • 125
  • 125
  • 125
  • 51
  • 44
  • 26
  • 26
  • 24
  • 20
  • 17
  • 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.
151

Fresh Face >>> Body 2.0 : Handens minne + Digitala dimensioner

Wollin, Elin January 2017 (has links)
"My goal with this project is to digital print a Science Fiction inspired print on fabric that provides an optical illusion with lenticular technology. The fabric will be presented with five curtain drapings, two in motion with motorized movable suspensions. The Print design is going to be created with a science fiction/cyberpunk/transhumanism atmosphere. I’m inspired by the relation between body and machine. The textile field is drawn to smart textiles where the idea of function, artificial intelligence and virtual reality is central. There are already textiles that are designed to react to the wearers needs. And soon it will be possible for the online shopper to purchase customized clothes by recreating themselves as an avatar through 3Dscanning. With this as inspiration my digital print is designed. Technically I will produce a fabric using the lenticular technology that creates an optical illusion. In order to produce the fabric, I need to work with the prints in Photoshop and then digitally print them on fabric. So that the fabric could be able to obtain an optical effect, a lens made of silicone will be laminated on top. The silicone lens is cast in a form which is sketched and made as a model in Rhino and then cut out from a metal block with a milling cutter. The composition will be presented as five curtain drapings. Two of them moves with electric winches. They will hang separately but communicate in a spatial constellation. Like organs the draperies spread out and fall back again. Here, as in the print design, the body and the machine will be crucial. The focus is also on the fabric's tactile character, drama and historical heritage."
152

CSR-Marknadsföring inom anläggningsmaskin-branschen : En studie om hur Volvo Construction Equipment använder sig av Corporate Social Responsibility i sin marknadsföring

Ekstrand, Tim, Axelsson, Tim January 2020 (has links)
ABSTRACT Date: Level: Institution: Authors: Title: Tutor: Keywords: machine 08-06-2020 Bachelor thesis in Business Administration, 15 crSchool of Business, Society and Engineering, Mälardalen University Tim Axelsson Tim Ekstrand (97/06/22) (97/05/21) CSR – marketing within the heavy machinery industry Aswo SafariCSR, marketing, Construction, Machine, effectivity, construction Research question: How do companies in the construction machinery industry use CSR in their marketing effectively? Purpose: The purpose of this paper is to investigate and thus gain a deeper insight into how CSR is used in marketing in the most efficient way possible in the construction machine industry. The hope is to be able to clarify the uncertainties surrounding CSR in marketing and to be able to provide companies of the construction machinery industry with in-depth knowledge of the subject and to assist with a model for other companies in the industry to use to review the effectiveness of their CSR -marketing. Method: A qualitative case study that examines Volvo Construction Equipment in more detail. The study approach is based on an abductive approach where the study creators have drawn a conclusion based on the collected theory and results. The empirical data consists of 3 interviews with senior employees at Volvo Construction Equipment. Conclusion: The study found that VCE's approach to creating effective marketing is broadly similar to the previous research produced by the authors. However, VCE uses a couple of methods that were not identified in theory.
153

Universell dragprovmaskin : För dragprov av tillverkade produkter

Karlsson Lillienberg, Emil, Holgerson, Rasmus January 2024 (has links)
In this bachelor thesis we will present our development and design of a universal tensile testing machine made for FA-TEC i Falkenberg AB capable of creating a pulling force of 1 MN which is approximately equal to a load of 100 tonnes. The purpose of the machine is to allow for the company to further their inhouse capabilities of tensile testing of their diverse steel products, allowing them to streamline and reduce delivery time and cost. The goal is for FA-TEC to be able to assemble the construction themselves in their metal workshop and put the machine into use this fall 2024. The project focuses on the design process and how and why we make different choices in reference to different perspectives such as safety in the form of solidity of the design and work environment. We also have a requirement specification as well as other limiting factors like available equipment for construction, subcontractors production catalog, work space and a deadline. The methodology we used is inspired by the method from the book “Product Design and Development” by Karl T. Urlich, Steven D. Eppinger, and Maria C. Yang. Chosen methodology is crossed by product development and semantic discontinuity detection by using FEA to conduct calculations of the construction giving us valuable feedback we can use to optimize and change the design, this is then done in multiple iterations until we arrived at our final design.
154

Automatic Log Analysis System Integration : Message Bus Integration in a Machine Learning Environment

Svensson, Carl January 2015 (has links)
Ericsson is one of the world's largest providers of communications technology and services. Reliable networks are important to deliver services that live up to customers' expectations. Tests are frequently run on Ericsson's systems in order to identify stability problems in their networks. These tests are not always completely reliable. The logs produced by these tests are gathered and analyzed to identify abnormal system behavior, especially abnormal behavior that the tests might not have caught. To automate this analysis process, a machine learning system, called the Awesome Automatic Log Analysis Application (AALAA), is used at Ericsson's Continuous Integration Infrastructure (CII)-department to identify problems within the large logs produced by automated Radio Base Station test loops and processes. AALAA is currently operable in two versions using different distributed cluster computing platforms: Apache Spark and Apache Hadoop. However, it needs improvements in its machine-to-machine communication to make this process more convenient to use. In this thesis, message communication has successfully been implemented in the AALAA system. The result is a message bus deployed in RabbitMQ that is able to successfully initiate model training and abnormal log identification through requests, and to handle a continuous flow of result updates from AALAA. / Ericsson är en av världens största leverantörer av kommunikationsteknologi och tjänster. Tillförlitliga nätverk är viktigt att tillhandahålla för att kunna leverera tjänster som lever upp till kundernas förväntningar. Tester körs därför ofta i Ericssons system med syfte att identifiera stabilitetsproblem som kan uppstå i nätverken. Dessa tester är inte alltid helt tillförlitliga, producerade testloggar samlas därför in och analyseras för att kunna identifiera onormalt beteende som testerna inte lyckats hitta. För att automatisera denna analysprocess har ett maskininlärningssystem utvecklats, Awesome Automatic Log Analysis Application (AALAA). Detta system används i Ericssons Continuous Integration Infrastructure (CII)-avdelning för att identifiera problem i stora loggar som producerats av automatiserade Radio Base Station tester. AALAA är för närvarande funktionellt i två olika versioner av distribuerad klusterberäkning, Apache Spark och Apache Hadoop, men behöver förbättringar i sin maskin-till-maskin-kommunikation för att göra dem enklare och effektivare att använda. I denna avhandling har meddelandekommunikation implementerats som kan kommunicera med flera olika moduler i AALAA. Resultatet är en meddelandebuss implementerad i RabbitMQ som kan initiera träning av modeller och identifiering av onormala loggar på begäran, samt hantera ett kontinuerligt flöde av resultatuppdateringar från pågående beräkningar.
155

Konceptutveckling av kabelmaskin för träning med resistans och viktsimulering

Haddad, Robert, Azizi, Aram January 2021 (has links)
På samtliga gymplatser finns alltför många maskiner och redskap idag. De flesta nybörjare har svårt att komma igång med träning, speciellt om dem tränar ensamma. Nybörjare har större chans att överge gymmet än de erfarna. Antalet maskiner och redskap ökar varje år då flera individer börjar hoppa på den nya trenden (fitnessindustrin). Professionella atleter kräver mer än det utbud som finns idag. Resistansträning reducerar skador och assisterar atlet eller nybörjare till att använda muskelgrupper som stärker kroppen utöver träning med vikt Detta examensarbete utgår från att designa en estetisk och funktionell design för en gymprodukt. Dagens samhälle är mer inriktad mot träning jämfört med tidigare. Då teknologi som avanceras blir människan latare. Sedan start av pandemin år 2019 har antalet privatpersoner med ett hemmagym ökat. Produkten som Företag A tillverkar inriktar sig mot företagsgym, privatpersoner samtprofessionella atleter. Examensarbetets primära fokus är att tillsammans med Företag A utveckla en produkt vars syfte är att underlätta träning för marknaden samt öka tillgänglighet och förståelse för träning.  Innan projektet påbörjade skrevs ett konfidentiellt avtal som samtliga parter signerat. Tillsammansmed konfidentiella avtalet skrevs de kravspecifikationer som var viktiga för produkten och dess funktion. Följande frågeställningar ställs för projektet:  Q1: Är den slutliga designen estetisk tilltalande från perspektivet av Företag A? Q2: Hur kan krav för funktioner och estetik kombineras på det mest effektiva sätt? Q3: Hur ska kravspecifikationerna tillämpas för koncepten och delsystemen? Q4: Hur kan koncepten kombineras för det teoretiskt mest effektiva sätt? Med hjälp av litteraturen Produktutveckling, samt hjälp av handledaren underlättades arbetet. Projektet undergick ett par olika faser från att generera koncept, välja ut de viktiga koncepten till att vidareutveckla på dem valda koncepten för ett färdigt resulterande slutkoncept. Detta slutkoncept blir då designen för den färdiga produkten. Slutprodukten resulterade i en sammanfogning av olika koncept för att effektivt integrera design med funktion. Då Företag A ansåg slutdesignen som estetisk tilltalande design så slutfördes arbetet på ett successivt sätt, där alla kravspecifikationer (inom räckvidd) erhölls. Samtliga kravspecifikationer som projektet inte täckte, blir svarade under tillverkningsprocessen som är bortom studenternas uppgifter.Det slutliga konceptet resulterade i en total vikt på 4,731kg, och en preliminär tillverkningskostnad på12 313kr. Resultatet av dessa faktorer överträffade de krav och idealvärden satta för produkten. Den framtida utvecklingen av projektet kräver vidaretestning av funktioner, geometri och sammansättning av komponenter då detta projekt endast framhäver en hypotetisk fungerande produkt. / There are far too many gym machines and equipment’s these days. The majority of the new gym members find it hard to train regularly, especially if they train alone. New members also tend to skip the gym more frequently than that of the experienced and established members. The number of machines and equipment’s used for training purposes increases every year because of the fitness industry increasing in popularity. Professional athletes demand more advanced products because of the increase in competition. Resistance training is the most popular training method because more people look to building muscles rather than functional training. The benefits of resistance training includereduced injuries, builds, and strengthens the muscles. The purpose of this theses is to design a functional and aesthetically pleasing gym product. Today’s generation is more invested in fitness than the past generations. The more technology advances, the lazier humans have become. When the COVID pandemic hit in 2019, the amount of home gym owners reached an all-time high. The product that Company A wants to manufacture is targeted for professional athletes, commercial gyms and for private use. This thesis primary focus is to develop a product with the purpose of facilitate training for the fitness industry, increase availability and build a better understanding for training. This project had a confidential agreement that every participant signed before start. Together with the confidential agreement, the product requirements were written and accepted by all participants. The product requirements include the functional capabilities of the finished product. The following research questions were used to determine the success of the project:  Q1: Is the finished product design esthetically pleasing for Company A? Q2: How can the functional requirements combine with an esthetic design in an effective manner? Q3: How can the product requirements apply for the concept and its part subsystem? Q4: How can the concepts combine in the most effective manner theoretically? This project used most of the help from the supervisor(s) and the “Produktutveckling” literature. The project underwent a few phases as explained in the literature, to generate and select the most useful concept. The chosen concepts were then further developed for a resulting design concept. The developed concept was then chosen as the finished design, by an agreement of the participants. The finished product design resulted in a combination of the different concepts generated in the earlier phases. The reason behind the combination was to include the pros and exclude the cons of each design concept. The project was a success, since Company A approved the design and considered the finished concept as aesthetically pleasing. All of the product requirements that was set were unchanged and included in the finished product. The remaining product requirements that were left unanswered could only be determined by manufacturing and further testing, which is beyond the students signed agreements.
156

Bootstrapping Secure Sensor Networks in the Internet of Things / Konfiguration av säkra sensornätverk i sakernas internet

Edman, Johan January 2022 (has links)
The Internet of Things has become an integral part of modern society and continues to grow and evolve. The devices are expected to operate in various conditions and environments while securely transmitting sensor data and keeping low manufacturing costs. Security for the Internet of Things is still in its infancy and a serious concern. Although there are several schemes and protocols for securing communication over insecure channels, they are deemed too costly to perform on these constrained devices. As a result, substantial effort has been committed to developing secure protocols and adapting existing ones to be more lightweight. What remains seemingly absent in protocol specifications and key management schemes, however, is how to bootstrap and secure the initial communication. While it is possible to use pre-shared keys, such solutions are problematic with security and administrative overhead in mind. When the sensor networks grow in scale, with an increasing number of devices, this becomes especially problematic as autonomous deployment becomes necessary. By reviewing proposed bootstrapping techniques and evaluating suitable candidates, this work aims to provide an overview of approaches, their trade-offs and feasibility. Results of the study show that advancements in high-speed, lightweight and elliptic curve implementations have made public-key cryptography a viable option even on the very constrained platform, with session keys established within the minute. When analysing the node’s capability to generate randomness, a cornerstone of cryptographic security, initial findings indicate that it is not well equipped for the task. Consequently, sources of entropy must be evaluated thoroughly in resource-constrained devices before use and dedicated hardware for randomness might be necessary for the most constrained nodes if any security is to be guaranteed. / Sakernas internet har blivit en central del i dagens samhälle och fortsätter att utvecklas och integreras allt mer. Enheterna förväntas fungera i många typer av miljöer och förhållanden samtidigt som de ska skicka data säkert och vara billiga att producera. Trots att utvecklingen gått framåt, är säkerheten fortfarande väldigt rudimentär och i behov av ytterligare utveckling. För vanliga nätverk finns det många väletablerade protokoll för att säkra kommunikation, men dessa anses oftast vara för komplicerade för de resursbegränsade enheterna. Till följd av detta har forskning inriktats på att effektivisera existerande protokoll men även på att utveckla enklare varianter. Det som fortfarande kvarstår som ett problem och ofta inte diskuteras, är hur den initiala distributionen av kryptografiska nycklar ska genomföras. Att använda sig utav förinstallerade nycklar är en möjlighet, men det brukar oftast bli problematiskt utifrån säkerhet och administrering när sensornätverken växer i storlek. Genom att granska och utvärdera föreslagna metoder för initial konfiguration av sensornätverk, ämnar detta arbete att ge en översikt i vilka olika metoder som finns tillgängliga och deras lämplighet. Resultat från arbetet visar att tack vare framsteg inom elliptisk kurvkryptografi är publik nyckelkryptografi ett rimligt alternativ att använda, då en sessionsnyckel kan etableras inom loppet av en minut. Vid utvärdering av enheternas förmåga att generera slumptal visar initiala resultat däremot att A/D-omvandlaren inte är en lämplig källa för detta då dess entropi är låg och genererad slumpdata har en dålig fördelning och hög upprepning. Det går därför att dra slutsatsen att om någon nivå av kryptografisk säkerhet ska erhållas, så måste källor till entropi utvärderas noggrant. De resursbegränsade enheterna kan även ha ett behov av dedikerad hårdvara för att generera slumptal.
157

Mind design : steps to an ecology of human-machine systems

Hoff, Thomas January 2003 (has links)
<p>We have, within the last years, witnessed horrifying tragedies within the transportation domain. Planes fall down, trains crash, boats sink, and car accidents are one of the most frequent causes of death throughout the world.</p><p>What is more, technology seems also to fail in settings that are more mundane. In his book "the trouble with computers: Usefulness, usability, and productivity", T.K. Landauer shows that the productivity has, within the western world, decreased by about 50% from the period 1950-1973 to the period from 1973 to 1993, and claims that this effect is mostly due to the introduction of technology. Even closer to home, technology is still anxiety provoking for most people. One of many everyday observations to support this fact can be seen at the airports. Have you wondered why most people line up, even for hours, without daring to go near the automatic check-in machines?</p><p>What has become of the grandiose promises from the heydays of artificial intelligence? What happened to the mind-machines of Newell and Simon? Where is HAL 9000? The distance between the massive technology positivism observed in the west, and the contemporary role of technology in the society, is, I believe, one of the largest paradoxes of our time.</p><p>What is particularly interesting to note, is that the parody of the AI of the 60s, seems to be recycled every now and again, both within entertainment, the financial world, and within academia. At the turn of the century, we have seen the popularity of movies like The Matrix, we have seen high hopes become sober reality at NASDAQ, and the reductionism of Newell and Simon is alive and well, in disguise of the magic buzzword connectionism. Universities around the world are now buying MRI – scanners on the thousands. We are, yet again (!), on the verge of discovering the mysteries of the mind.</p><p>The slogan "Vorsprung Durch Technic" used by Audi displays something that lies deep within the western mind, namely the tendency to define ourselves and our culture in terms the inherent qualities of technology; precision, logic, rationality, reliability, punctuality, determination and power. Technology is, in many respects, the totem of the western culture. Maybe this thesis should have been about Techno-Totemism. But it is not.</p><p>This thesis, on the other hand, attempts to explore what technology might have looked like, had it not been for techno-totemism, i.e. the prevailing idea within western culture and sciences, that humans are literally machines. This notion makes engineers design technological products as if humans actually were machines, or worse imperfect machines. The imperfect machine metaphor leads directly to the notion of "human error", which is often used in a particularly stupid fashion.</p><p>In this work I lean, on the contrary, on aspects of human cognition that are not machine-like whatsoever, and advocate a change in design focus, from an emphasis on technology to an emphasis on ecology. I have attempted to present my programme positively; that is, to give indications on how, in practical, real life settings, such an approach might be carried out. At certain points, however, it has been necessary to point out the difference of my approach from the traditional cognitive-based Human Factors tradition, to make my points explicit. I apologize to cognitivists and human factors specialists for occasionally making a straw man of their theory. There are many excellent contributions made by these traditions, which are not reflected in this thesis.</p>
158

Mind design : steps to an ecology of human-machine systems

Hoff, Thomas January 2003 (has links)
We have, within the last years, witnessed horrifying tragedies within the transportation domain. Planes fall down, trains crash, boats sink, and car accidents are one of the most frequent causes of death throughout the world. What is more, technology seems also to fail in settings that are more mundane. In his book "the trouble with computers: Usefulness, usability, and productivity", T.K. Landauer shows that the productivity has, within the western world, decreased by about 50% from the period 1950-1973 to the period from 1973 to 1993, and claims that this effect is mostly due to the introduction of technology. Even closer to home, technology is still anxiety provoking for most people. One of many everyday observations to support this fact can be seen at the airports. Have you wondered why most people line up, even for hours, without daring to go near the automatic check-in machines? What has become of the grandiose promises from the heydays of artificial intelligence? What happened to the mind-machines of Newell and Simon? Where is HAL 9000? The distance between the massive technology positivism observed in the west, and the contemporary role of technology in the society, is, I believe, one of the largest paradoxes of our time. What is particularly interesting to note, is that the parody of the AI of the 60s, seems to be recycled every now and again, both within entertainment, the financial world, and within academia. At the turn of the century, we have seen the popularity of movies like The Matrix, we have seen high hopes become sober reality at NASDAQ, and the reductionism of Newell and Simon is alive and well, in disguise of the magic buzzword connectionism. Universities around the world are now buying MRI – scanners on the thousands. We are, yet again (!), on the verge of discovering the mysteries of the mind. The slogan "Vorsprung Durch Technic" used by Audi displays something that lies deep within the western mind, namely the tendency to define ourselves and our culture in terms the inherent qualities of technology; precision, logic, rationality, reliability, punctuality, determination and power. Technology is, in many respects, the totem of the western culture. Maybe this thesis should have been about Techno-Totemism. But it is not. This thesis, on the other hand, attempts to explore what technology might have looked like, had it not been for techno-totemism, i.e. the prevailing idea within western culture and sciences, that humans are literally machines. This notion makes engineers design technological products as if humans actually were machines, or worse imperfect machines. The imperfect machine metaphor leads directly to the notion of "human error", which is often used in a particularly stupid fashion. In this work I lean, on the contrary, on aspects of human cognition that are not machine-like whatsoever, and advocate a change in design focus, from an emphasis on technology to an emphasis on ecology. I have attempted to present my programme positively; that is, to give indications on how, in practical, real life settings, such an approach might be carried out. At certain points, however, it has been necessary to point out the difference of my approach from the traditional cognitive-based Human Factors tradition, to make my points explicit. I apologize to cognitivists and human factors specialists for occasionally making a straw man of their theory. There are many excellent contributions made by these traditions, which are not reflected in this thesis.
159

Bricoleur, digitala varelser och brus

Rosén, Carl-Johan January 2012 (has links)
Bricoleur, digitala varelser och brus utgör tre viktiga noder, runt vilka mitt konstnärliga arbete rör sig. Parallellt med ett antal av mina verk beskrivs dessa begrepp kortfattat. / Bricoleur, digital beings and noise are three important nodes, making up cornerstones of my artistic work. These ideas are explained briefly parallel to a selection of my artworks.
160

Konstruktion av lapputmatningsmaskin

Gregorovic, Antonia, Anikina, Elizaveta January 2014 (has links)
The vision of this thesis was to create a concept that can be used as a base for amachine construction. The purpose of this project was to use different methods todevelop a concept that on the best way meets the sat up requirements. This projecthas been divided into three stages/parts; principle, primary and the final solutionstage.This thesis has been conducted in collaboration with Västkustägg AB. It is aconstruction project designed to construct a machine that will automatically putlabels on the egg packages. Västkust AB wanted to automate this process. Thecompany has only tested this process earlier by an operator who did this jobmanually.We came up with different solution during this project. The assessments of theseconcepts were made after Olsson's (1995) method and together with Terje Olsson- our supervisor at the company, later during the project. During the last stage ofthis project we chose to go with one final concept for a further developing. Alldemands made by the company were followed throughout the working process.We managed to develop a machine containing few and simple components, whichat the same time are very functional for its purpose. The design of our machine isdifferent from other industrial machines and labeling machines which makes itunique in its own way. This machine is meant for labels of two standard types ofpaper A5 and A6.The calculations we made during this project have been done in Catia V5 and hasbeen verified. We had a clear image of how our ideas should be in the beginningof this project and we knew how we wanted them to be we used our own theoriesand approaches in practice. Our theories and ideas showed in our sketches andprototypes. This along with other methods led to our final concept.We had also built some prototypes to be able to see if our ideas work in practice.The prototype led to some changes in our concepts. It gave us experience inprototype creating, functionality of the ideas and other areas.

Page generated in 0.1137 seconds