Master thesis for Mechanical engineering, at the University of Lund. Incorporated in project Pondora.The purpose of this master thesis is to compare the existing one way packaging system with a proposed return crate system not yet available in Sweden. The comparison is focused on packaging handling in the grocery store.The purpose is also to investigate how operating return crate systems in Norway and Finland function, identify, the problems they have encountered and survey economic and technical aspects. The knowledge we hereby have acquired was subjectively evaluated in the thesis.The Swedish survey has a focus on meat and bread. The surveys in Finland and Norway contain all the products utilizing the studied return crate systems.We have surveyed how the handling of transport packages for meat & provision and bread is done in the store.

The project has been provided by Zenit design group and the goal for this project was tomanufacture and perform tests of a prototype that supersaturates water in a continuous flow ofwater. The project has involved finding and sorting out relevant data in scientific papers, books,communication with foreign manufactures and other platforms for information.The project has resulted in manufacturing of a test rig and an oxygen infuser based onmembrane technology. The test rigs purpose was to perform tests on oxygen infusers fordifferent comparison test and performance benchmarks in a in a laboratory provided by Zenit.The project led to satisfying results using the oxygen infuser manufactured by the authors withcomparable levels of saturation to the reference infuser.The theory behind this project is based on medical research, belonging terms will be explainedbut the authors have chosen to delimit the project from the medical area. The reason for this islack of knowledge in this area and its irrelevance to the mechanical engineering education insuch..

Vid Industriellt UtvecklingsCentrum i Olofström AB utförs bland annat slitageprov av verktygsstål vid plastisk formning av plåt. Parametrar som undersöks är verktygstålsmaterial, plåtkvalitéer, ytbehandlingsmetoder, smörjning och olika kombinationer av dessa faktorer. Den nuvarande testmetoden upplevs av IUC som icke tillräckligt produktionslik. Därför skulle det vara önskvärt med ett mer produktionslikt slitagetest än det nuvarande. Vårt uppdrag var förutom att utforma ett nytt slitagetest även att undersöka intressenters synpunkter på den nuvarande testmetoden och önskemål om ett framtida slitagetest. Inledningsvis inventerades befintliga slitagetestmetoder för att försäkra sig om att särskilja det nya testet från befintliga testmetoder och kartlägga vilka egenskaper som undersöks. Eftersom önskemål om ett mer produktionslikt slitagetestmetod fanns behovet av att göra en studie för att definiera begreppet mer produktionslik.

This Diploma work investigates internal air ventilated crawl-space in respect to construction and damp. The Diploma work assumes from a general description of crawl-space and general dump problems in ground construction. An internal air ventilated crawl-space is a construction where you take the ventilation air from the building and bring it down to the crawl-space and lets the air circulate before it passes through a retaining aggregate on the way out from the crawl-space. In this matter you get a worm space under the building and a lot less dump problems in form of · Ground damp · Build damp The ground dump reduces through draining around the building, different layer of gravel between the ground and the building and ventilation of the crawl- space. The build dump reduces through ventilation of the crawl-space as fast as possible.

In Sweden there is no legal regulation for the obligations and responsibilities between the contracting parties within the construction, civil engineering and installation sector. To clarify uncertainties regarding the liability, actors from theses sectors have agreed upon a voluntary regulation, called the General Conditions of Contract.When insurance companies want to enter the Swedish construction insurance market, they face a regulatory framework that not only regulates the construction market, it also imposes requirements on terms and conditions that must be included in the construction insurance. These terms are perceived as ambiguities and create difficulties and inhibit the ability for these insurance companies to offer competitive insurances. One of the terms that create these difficulties is the guarantee period, which is period of time starting from handing over the construction project to the employer, during this period the contractor still has the responsibility for the construction project. The guarantee period regulated by the General Condition of Contracts differs from the international use of the term both in length and in content.

The aim of this project is to study the work that has been done by the youth welfare to prevent accidents and to increase the preparedness in case of fire. Further the aim is to develop a basis to improve the interaction between the fire services and the youth welfare. The conclusions that were made during the project can be used to increase the safety of the environment that estates by the youth welfare..

TAT?s Cascades and Kastor are programming languages used to create graphical user interfaces (GUI) for mobile phones. TAT Tutorials is a dynamic, interactive tutorial site for these xml-based programming languages. An editor will be available for download to enhance the learning process..

AbstractThis is a thesis done in cooperation with the firm Somas and University of Karlstad. The project is an independent final examination part of the program in Innovation and DesignEngineering comprising 22.5 points, and performed by Mia Myrén Zreloff during spring term 2012. In parallel and collaboration, Fredrik Kjellin performs a similar job for the same company and with the same extent, but for the Program in Mechanical Engineering.The client and supervisor at the company have been Magnus Jansson and Anders Josefsson. At Karlstad University has technical supervisor been Hans Johansson, and in the design- and development process it was Monica Jakobsson. Examiner has been Fredrik Thuvander, professor in the Faculty of Technology and Science at Karlstad University.The mission has been to make a basis work for the company's own development and make a computational model to calculate, visualize and implement materials and other solutions in the manufacture of the company's ball valves.The project has undergone three major phases that included thorough study of the company, production, the problem and product.

Detta examensarbete innehåller en introduktion till informationssystemutveckling och Requirements Engineering (RE). Vikten av att utföra RE på ett effektivt sätt är stor. Hela informationssystemet blir lidande om denna del inte utförs på ett tillfredställande sätt. För att utföra RE finns en rad tekniker och verktyg. Detta arbete behandlar en teknik i RE, nämligen Use Case-modellering.

This master thesis covers the development of an automatic tuning process for the existing speed controller for drive systems. The drive systems are resonant two-mass systems where a motor is used to drive a load connected by a shaft. The developed method relies heavily on system identification and the construction of a complete mechanical model of the process. With this approach, the common problem with poor load speed control that derives from measuring only the motor speed can be addressed and solved for a majority of such processes.The automatic tuning method has along with general test functions been implemented in a complete tool for automatic tuning, testing and performance evaluation and reporting for drive systems..

This report is a risk- and vulnerability analysis of how the commercial ship and its goods can be a threat to the environement and to human health in case of a discharge. It present the most common dangerous goods that are transported with ship through Kattegat in the Baltic Sea..

This thesis of 15 hp has been implemented at Halmstad University, incollaboration with Saab Dynamics in Linköping. Saab Dynamics is a companyoperating in the defence industry where competition is tough. This necessitatesnew ways to increase efficiency in the company, which is the basis for this thesis.Saab Dynamics wants to introduce simulation driven design. Since SaabDynamics engineers have little experience of simulation, required a usermethodology with clear guidelines. Due to lack of time, they chose to assign thetask to students, which resulted in this thesis.The aim of the thesis is to develop a methodology in mechanical design, wherethe designer uses the FE analysis early in the design process to develop thestructures' mechanical properties.

This bachelor?s degree thesis was conducted in mechanical engineering at Halmstad University during spring semester 2010 in close collaboration with the company Gremo AB, located in Ätran, Sweden. Gremo AB produces, developes and sales forest machines in both Sweden and on the international market.Gremo AB belongs to one of the market leaders in forest industry, especially with their forwarder. In order to become a market leader even with their harvester, the company decided to change the harvester to have a swivel and a leveling driver cabin.The aim with this bachelor?s degree thesis was to develop a design concept for the harvester driver cabin, which Gremo AB can apply on the new harvester.

A vehicle that carries a person sitting in a wheelchair has been rebuilt. The original vehicle was provided with a petrol engine, hydrostatic drive and a mechanical steering rod, making it noisy and hard to maneuver. The purpose with this project was to convert the vehicle to make it more environmental and easier to drive.A new design has been proposed where an electrical drive has replaced the noisy combustion engine and an electrical motor with joystick control has replaced the manual steering.The project was divided into two parts. One mechanical part where the construction of the drive and steering were to be decided. The other part involved programming the microprocessor and implementation of all the necessary electrical for the control system of the vehicle.

Aim: The aim of this study was to describe intensive care nurses? experiences communicating with patients during mechanical ventilation.Methods/design: A qualitative interview study. Interviews where analyzed using descriptive content analysisSetting: Nine intensive care nurses from two different intensive care units were interviewed using a semi structured interview guide.Background: Past research has shown that patients during mechanical ventilation in the intensive care unit, feel very vulnerable and the helplessness of being unable to speak. These patients feels that they are completely dependent on the nurses and their competence. It has been shown to be very important that the patient feels included, acknowledged and respected.Results: The analyzed data resulted in a theme; through communication strive to preserve patients´ dignity and three main categories; create relationship to the patient, minimize patients´ vulnerability and don´t give up.