Sökresultat:
1033 Uppsatser om Mechanical engineering - Sida 16 av 69
Utvecklingsprojekt Easy Load
In order to increase the independence in everyday life of the elderly population, we have developed a lifting aid for loading in the private car trunk. Independence from outside assistance affects self-esteem in a positive direction and can help increase the quality of life for a large group of individuals. As people age and experience changes in performance, it is important that aids and support is available, particularly to reduce the experience of aging and it?s increasing physical limitations. The aim was to develop a function prototype characterized by simplicity, which facilitates loading of the private cartrunk.The project was conducted at the request of Autoadapt AB, which is one of the leadingactors in car adaptations for individuals with disablilities.
Trä som fasadmaterial ? behandling och beständighet
Since prehistoric time man has used wood to build their environment. The material?s availabilitycombined with its good mechanical properties has often made it the material of choice. Like allmaterials exposed to natures degradative processes the properties of wood decreases over time.Rot, UV radiation and attacks by insects and pests damage wood if not protected. Since we wantwhat we build to consist, optimizing our building materials durability is of great interest.Techniques and methods for increasing the endurance of wood have been developed in severaldifferent places and for a long time.
Sjuksköterskors uppfattningar ominformationssäkerhet : en kvalitativ intervjustudie
Inom hälso- och sjukvården hanteras känslig patientinformation. I framtiden kommer alltmer information att lagras elektroniskt och därmed bli mer lättillgänglig. Användarna av informationssystemen kan vara en säkerhetsrisk. Metoderna som används vid intrångsförsök inriktas alltmer på att involvera människor istället för att enbart använda sig av teknik.Syftet med detta arbete är att undersöka användarnas upplevelse och medvetenhet om icke tekniska hot mot informationssäkerheten för digitalt lagrad patientinformation.Datainsamlingen genomfördes i form av kvalitativa intervjuer med sjuksköterskor anställda på ett sjukhus i västra Sverige. Resultatet visar att det allt överskuggande upplevda hotet var intrång och förlust av sekretess i den elektroniska patientjournalen.
Utökade tillämpningsmöjligheter för turbinlösning i våtpartiet hos tissuemaskiner : Konceptförslag som möjliggör tillämpning av turbinlösning för maskiner vars banbredd är bredare än 2,9 meter
AbstractThis thesis is the final part of the Innovation and Design Engineering Programme (180 ECTS credits)at the Faculty of Health, Nature and Engineering Science at Karlstad University. The extent of thisthesis is 22.5 ECTS credits and has been performed independently by Hannes Jernberg during thespring of 2013. Metso Paper Karlstad AB is the task maker of this project, and Arvid Johansson is thecompany Representative. Metso Paper Karlstad AB is one of the world leading developer andmanufacturer of tissue paper machines.In the current situation, the company has developed and patented a power management systembased on a Cross Flow Turbine. The current construction is limited to a paper width of 2.9 meters.The company wants to take advantage of all the opportunities provided by the patents, to develop aturbine solution paper machine with a paper width that is wider than 5.5 meters, and give the abilityto manufacture paper for lower energy consumption which is an important part of the production asit is very energy intensive.Problems arise with the increasing length of the turbine, ultimately resulting in that the deflectionbecomes too big and that the momentums, due to the increased torque the turbine blades breaks.By applying the design process, this work has resulted in a number of potential solutions to theproblem.
Value engineering som ett verktyg för att reducera produktosäkerhet?
Syftet med den här uppsatsen är att skapa förståelse för hur produktosäkerhet kan reduceras med hjälp av Value Engineering. För att besvara detta syfte valde vi att göra fallstudier på fyra företag inom två olika branscher. Empirin samlades in genom personliga intervjuer med personer ansvariga för företagens produktutveckling. Våra frågeställningar handlade om produktutveckling, produktosäkerheter och reducering av produktosäkerheter. Den insamlade empirin analyserades sedan mot den teoretiska referensram som vi ställt upp.
Abrasiv nötning av polymerer tillverkade genom 3D-skrivning
Volvo Cars in Skövde manufacture and assemble Volvo engines. When attaching the ignition coil to all 4-cylinder engines, a special mounting tool is required. This mounting tool is currently manufactured from injection-molded polyoxymethylene (POM), a thermoplastic. It has been noted that the life span of the tool is shortened as a result of abrasive wear that occurs during the attachment process of the ignition coil.An investigation of the possibility of manufacturing the mounting tool with a 3D-printer is undertaken in cooperation with ÅF, a consultant to Volvo Cars. A literature study is first presented to introduce broader knowledge on the subject.
Riktlinjer för mobil applikationsutveckling
Marknaden för mobila system har utvecklats enormt snabbt de senaste åren. Idag
är det ett område med en allt större omsättning och det har vuxit fram som en
helt ny gren inom Software Engineering. Utvecklare av mobila applikationer står
ständigt inför en utmaning när det gäller att välja vilket mobilt system man
ska satsa på när man utvecklar applikationer. Valet av system kan vara helt
avgörande för om man hittar rätt målgrupp av konsumenter och därmed kan
generera tillräckligt med omsättning för att driva lönsam utveckling av
applikationer. Det räcker inte att enbart kolla på vilket system som har mest
användare eller vilket system som genererar mest omsättning, utan man bör
noggrant överväga de förhållande som gäller för just den applikation som ska
utvecklas.
Genom att följa denna guiden och överväga de olika faktorer som vi har
sammanställt så kan man som utvecklare göra ett val som är baserat på aktuella
marknadsundersökningar.
Användning av fjärravläst mätdata för framtagning av byggnaders effektsignatur.
How to use automatically read data to create a method that visually describes how energy is used in a building, the so called energy signature..
Utveckling av webbsida för lokala prisjämförelser med användbarhetsmetoder
Företaget Ritkonsult är ett företag på Västkusten som utför diverse konsulttjänster, främst rituppdrag inom brandskydd. De har den senaste tiden sett ett uppsving för främst prisjämförelser på Internet. Detta arbete har därför gått ut på att utveckla en prisjämförelsetjänst för lokala företag på Internet. Tanken är att företag själva ska kunna lägga till uppgifter och administrera dessa. Informationen ska kunna gå att söka efter och jämföras med annan liknande information.
Hopfällbar hjullösning
In many products a compromise between ground clearance and the required space to store the product has to be made. This problem attracted the attention of the authors of this thesis.The objective of this project is to develop a functioning solution to a foldable wheel. The solution should be applicable to several types of product groups. A limitation for this work has been made so that the work only covers solutions for lighter vehicles.The purpose is to drive this project forward, so that a solution can be found. Furthermore the purpose of the report is to clarify how the authors proceeded to design and construct the wheel according to a fixed specification.
Värdering av föroreningsrisk - Ett förslag till angreppssätt för värdering av föroreningsrisk till följd av emission från en vägkonstruktion
When constructing a road the risk of emission of substances from the used materials to the surrounding environment has to be evaluated. The aim of this study is to present a proposal for how to evaluate the risk of contamination as a result of emission from the materials in a road construction. The study is based on literature studies, an inventory and a questionnaire that examines how experts in governmental agencies, industries and universities evaluate the risk of contamination. The inventory indicates that guidelines for evaluating the risk of emission from secondary materials in a road construction do not exist. The conclusions from the questionnaire are: that there is no common way to evaluate the risk of contamination as a result of emission from materials in the road construction, there is no uniform interpretation of the terms "minor" and "significant" risk of contamination and that the evaluation is subjective.
Marknadens implicita värde på det permanenta mätfelet på Stockholmsbörsen
This study investigates whether the permanent measurement bias (PMB) has changed over time for Swedish companies listed on the Stockholm Stock exchange at least one year during 1996-2000 or 2005-2010. By using the Residual Income Valuation-model the markets' implicit value on PMB is generated through reversed engineering, as values for all variables except PMB are entered such as the market perceived them at the specific valuation date each year. This implicit value is classified into industries and then sorted by their median. Statistical tests are performed to see if there is a difference between the industry median and the accounting-based values on PMB. The difference from period one to period two is also statistically tested for.The study finds that the implicit values on PMB have changed somewhat between the periods; however the fluctuations are not statistically significant.
Bibliotekets roll i studenternas studier: Användarundersökning vid Linköpings universitetsbibliotek hösten 2005
The aim of this master thesis is to examine the opinions of the students of Linköping University regarding the role of the university library in their learning process. The study addresses the student?s expectations and satisfaction regarding the library services. The questions we seek to answer are: What are the students? conceptions of Linköping University Library as a part of their learning process? What expectations do the students have regarding Linköping University Library? Does the library fulfil the students? expectations? In what way has the library?s pedagogical ambition reached the students? What are the students? opinions about the user education? The study is based on a web survey complemented with interviews.
Analys av kundorderuppfyllelseprocessen på Pallco AB
This thesis has been performed as a part of the Bachelor degree in Industrial Engineering and Management at the School of Engineering in Jönköping. The thesis is written on behalf of Pallco AB, which is an engineering company that performs subcontracting, surface treatment, and assembly of components, mainly in steel and aluminium. The thesis focuses on identifying and analyzing the customer order fulfillment process of three customers at Pallco AB.The main objective of the thesis is to distinguish time differences in the company?s administrative work for each of the three customers. Furthermore, Lean thinking is following as a thread through the whole thesis.
Halvledare för höga strömmar i fordon
Mechanical relays are more and more being replaced with semiconductortechnology. In this thesis it is investigated if and how the larger loads couldbe controlled by transistors. The main part of this work aims to create andverify a solution that can control the starter motor, as well as protect it incase of any failure. The different malfunctions that the solution protectsagainst is high current, too high peak current, low current, maximum cranktime and minimum cool off time. The timers also protect indirectly againstoverheating of the starter engine.The transistors used are BTS555, from Infineon.