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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

Alternativ avfallsinsamling i urbaniserade områden : En fallstudie av möjligheten att införa ett automatiserat sopsugsystem i centrala Göteborg / Alternatives to municipal solid waste management in dense urban areas : A case study on the possibility of implementing an automated vacuum collection system for refuse handling in central Gothenburg

Safaee, Daniel, Palmgren, Jonas January 2015 (has links)
Municipal waste management aims to collect waste from people and businesses in a sustainable manner. Today's waste management relies on an old container system which is simple and flexible. There are some problems with this type of management for both waste generators and collectors. The working environment is not the best for municipal waste collectors, there is heavy lifting and risk elements in the handling of containers and bags. There are also risks involved with heavy vehicles moving in sensitive areas such as residential areas and around schools. Forecasts show that most urbanized areas are expected to grow further for some time. This creates problems of increasing waste volumes, thereby increasing traffic. This makes it interesting to evaluate new and existing solutions of the collection and transportation of municipal solid waste. The study aims to identify the current municipal solid waste management theories and evaluate the opportunities that exist to develop the theory forward with focus on the collection in urban areas. The study intends to review whether it is economically feasible to implement automated vacuum systems in existing infrastructure. The theory shows that it is often possible to implement this in new construction projects, but the research is vague and inadequate regarding implementation in existing infrastructure. The case study examines whether implementation of an automated vacuum collection system is possible in central Gothenburg. The analysis assesses the financial feasibility of the implementation. Specifically, the unused surface of the refuse rooms can be utilized differently, thus reducing the costs that arise initially. The study shows that it will be profitable to implement an automated vacuum system in the study area since the initial investment can be offset through the alternative use of the floor space in the waste rooms. The study results suggest that other areas in existing infrastructure can implement similar solutions without economic losses.
2

När det maskinella ersätter det mänskliga : Digitaliseringens effekter på Försäkringskassan i Borås stad / When the machinery replaces the human side of public administration

Rashid, Niclas, Grajqevci, Shend January 2019 (has links)
Digitalisering är ett nytt fenomen och introducerades in till offentliga myndigheter vid 1970-talet. Med digitaliserade system kan de offentliga myndigheterna reformera sig till en mer effektiv, och komplett myndighet. De kan då utföra sina uppgifter med högre kvalité och kortare tidsintervaller. Syftet med detta arbete är att studera effekterna som digitaliseringen medfört på tre olika delar av organisationen, verksamheten, handläggarna och kontakten med medborgare. Detta för att vi kan utvärdera hur Försäkringskassan har påverkats på grund av digitala system. Genom att utgå från tidigare forskning har vi utfört en kvalitativ studie som studerar effekterna av digitalisering inom Försäkringskassan och dess enheter i Borås stad. Fyra semistrukturerade intervjuer utfördes på fyra olika enhetschefer inom försäkringskassan i Borås stad, samt att handläggare besvarade även en enkät angående ämnet digitalisering. Utifrån insamlad empiri och det teoretiska ramverket har vi utformat en analys angående de effekter som medförts av digitala system. Denna analys används senare för att besvara studiens frågeställningar och uppnå studiens syfte. Resultatet visar att digitaliseringen har påverkat verksamheten genom att förenkla det vardagliga arbetet i både positiv och negativ form, genom mindre fysisk dokumenthantering och strukturering vilket görs genom digitala system. Handläggare kan därmed utföra fler beslut inom ärenden under en kortare period. Beslutet blir mer korrekt genom att de digitala systemen hjälper till med regel ramverk som sätts för specifika ärenden. Eftersom tidsramen för varje ärende minskar får medborgare tillgång till sjukersättning fortare. Dock finns det idag mindre kontakt mellan medborgarna och handläggarna, vilket kan exkludera medborgare från tjänsterna då dessa inte är erfarna inom de digitala systemen. / The digitalization of the public sector is a new phenomenon that has been introduced during the early 70's. The public organizations can with digitalized systems reforms themselves to a more effective, and complete government that can perform its tasks to a higher standard and shorter time periods. The purpose of the work is to study the effects that digitalization has brought on three different dimensions: From a business perspective, a management perspective and a citizens' perspective where we can evaluate how these have changed due to digital systems. Based on previous research, there has been a qualitative study that studies the effects of digitalization within Försäkringskassan and its units in Borås. Four semi-structured interviews were conducted on four different unit managers within Försäkringskassan, and 51 out of 70 administrators answered a survey on the subject of digitalization. Based on collected empirical data and the theoretical framework, we have designed an analysis of the effects brought about by the digital systems. This analysis is later used to answer the study's questions and achieve the purpose of the study. The result shows that digitalization has affected the organization by simplifying everyday work in both positive and negative form, through less physical document management and structuring, which is done through digital systems. Administrators can thus make more decisions in cases for a shorter period and that the decision becomes more correct by the digital systems helping with the regulatory framework set for specific cases. As the time frame for each case decreases, citizens gain access to compensation faster. However, less human contact takes place between citizens and administrators, and thus some citizens can be excluded from the services because of not being knowledgeable in technology.
3

Design of a Self-Regulating Robotic Arm / Design av en självreglerande robotarm

Naesenius, Ludvig, Wikström, Viktor January 2022 (has links)
As the world rapidly propels further through the ever-evolving field of automation, there is also an increased demand for properly regulated robots. While the use of automated machines is nothing new, the industry remains in a continuous effort to develop systems that both push the number of manageable inputs and the limits of optimization. One of the most foundational parts of many automated machines is the robotic arm. During this project, a self-regulating robot arm with the ability to maintain a desired position based on multiple inputs was constructed and tested. The resulting design managed to maintain a set height with varying levels of flow and precision, enabling further development and optimization with stronger components. / I takt med att världen snabbt genomgår det ständigt föränderliga automationsområdet, finns det också en ökad efterfrågan på korrekt reglerade robotar. Även om användningen av automatiserade maskiner inte är något nytt, fortsätter branschen att arbeta kontinuerligt med att utveckla system som både ökar mängden hanterbar indata och tänjer på gränserna för optimering. En av de mest fundamentala delarna i många automatiserade maskiner är robotarmen. Under detta projekt konstruerades och testades en självreglerande robotarm med förmågan att bibehålla en önskad position baserat på flera insignaler. Den resulterande designen lyckades bibehålla en inställd höjd med varierande nivåer av jämnhet och precision, vilket möjliggör vidareutveckling och optimering med starkare komponenter.

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