In this project a LC-MS-method for the analysis of gamma-hydroxybutyrate, gamma-butyrolactone, 1,4-butanediol, amphetamine and methadone was developed.Initially, the efficiency of the ionisation of the analytes was evaluated with respect to the ionisation technique (ESI, APCI and APPI) and the composition of the mobile phase. In the next step a number of different columns was tested in order to find the one with the greatest potential for separation of the substances in question. Using the selected column, the separation was optimised by means of experimental design and the software The Unscrambler 7.8. The parameters studied were the flow rate, the column temperature and the mobile phase composition. The response variables were the resolution between the target compounds and the retention time of the last eluting compound.These experiments showed that, in order to obtain the best ionisation, the mobile phase should consist of 5 mM formic acid in water and acetonitrile.

Sapa Heat Transfer AB (SHT AB) är en av tre delar inom koncernen Sapa Group, som ägs av det norska företaget Orkla ASA. SHT AB har produktion både i Sverige (Finspång) och i Kina (Shanghai). Företaget är en världsledande leverantör och utvecklare av aluminiumband som används i olika typer av värmeväxlare, främst inom bilindustrin.I flera steg av produktionen, som innefattar omsmältning, varm- och kallvalsning samt skärning, uppkommer ett skrotfall av aluminium. Detta skrot tas omhand och återanvänds som råvara i företagets omsmältverk. SHT AB har idag inget automatiserat IT-stöd för att prognostisera skrotavfallet, dessa beräkningar görs istället med hjälp av Excel.

This thesis researches the construction of the Swedish masonry heater called r?rspis. A r?rspis has an inner smoke channel system that stores heat and it was developed in the early 19th century alongside the Swedish kakelugn (tiled stove). Unlike the tiled stove, the R?rspis was commonly found in simpler environments and is part of the cultural her itage of the rural population.

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.

A report has been made at a company in Borås at a company called ACG Nyström. Thecompany is today international and is marketing advanced equipment, systems and furthereducation to the manufacturing industry. A part of ACG Nyström?s production is a machinethey call Unimat. ACG Nyström doesn?t just stand for the actual production of the machine,but also for assembling and installation of the machine at the final customer.

In this project the focus has been on the system for recombination at Oskarshamn 2. The recombining systems have on several occasions switched paths due to low pressure before the last ejector that?s feeding the recombiner. Of the mentioned reason, events and several measuring points have been analyzed in this report since the installation of the recombining systems.In order to prove theories and demonstrate what may be the cause of this problem, we used heat balance calculations by the program Probera. Using the program, we can demonstrate that the catalytic process does not reach the desired temperature with the amount of combustible substance.

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

Lactobacillus reuteri has been used as probiotics in piglet and chicken feedings as well as in different diary products for humans. In this EEF-work I have shown that L. reuteri can be an alternative for treatment of vaginitis in laboratory rats used for breeding. In a breeding stock with 3000 animals some animals had a vaginal infection with ??haemolytic streptococci group G.

AbstractAim: The purpose of this thesis is to research how women think about fashion in relation to their self and to others. Can clothes be an expression of who we are who we want to be and how we look at others? What are the main characteristics in this type of communication and what kind of information can be distributed using this tool?Method/Material: InterviewsMain results: Clothes can work as a tool to show who we are and what we are, mainly on short term. We use clothes for different purposes, sometimes we what to be seen and really show who we are and what we stand for and sometimes we just what to go with the flow and not be seen at all. We will always have a physical need for clothes but it is also a natural and important part of our individual expression and our identity.Keywords: Fashion, Clothes, Identity, Lifestyle.

Nyckelord: Kassaflödesanalys, kassaflöde, likviditetsplanering, likviditetsbudget, likviditetsprognos, likviditet och nyckeltal.Frågeställning: Hur och varför använder de fyra valda organisationerna kassaflödesanalyser och -prognoser internt?Vilka är skillnaderna i de fyra organisationernas sätt att ställa upp och använda sig av kassaflödesanalyserna och -prognoserna och beror skillnaderna på i vilken bransch de verkar?Syfte: Syftet med uppsatsen är att undersöka hur kassaflödesanalyser och -prognoser tillämpas praktiskt i de fyra stora organisationerna ABB, Västerås stad, Manpower och Gina Tricot för att identifiera om skillnader i uppförandet finns.Metod: Studien är av kvalitativ karaktär då fallstudierna av organisationerna gjordes genom intervjuer med representanter på respektive organisation. Totalt genomfördes elva intervjuer med tolv personer. Data till referensramen samlades in genom sekundära källor. Insamlad data och information analyserades där referensram och empiri sattes i relation till varandra.Slutsats: Brister i metoden för hur kassaflödesanalysen ska upprättas finns då den i praktiken inte används av de undersökta organisationerna internt.

This report is focusing on problems with introducing standard enterprise resource planning systems (ERP) in businesses. A study has been carried out on a service and support department at a Swedish heat metering company, SVM North Node. The study aims to help the company become a better customer in choice and customization of a new ERP system. We make a description of the department studied and the work carried out there, on the basis of learning, knowledge and cooperation. As a final point we present some ideas on how computer systems could support their work, hoping that this will result in them making adequate demands on a new ERP system..

The sun is an endless energy source and the heat it produces can be used to heatup our homes. This technology is relatively old and was introduced in the late70-s. There are two kinds of solar collectors that are most frequently used todayand these are plain solar collectors and vacuum solar collectors. The plain solarcollectors are the once that are used the most but the vacuum solar collectorshave increased more as a percentage the last couple of years.The biggest question asked regarding an investment in solar heating is if theplant is economically profitable. This question has no direct answer because itis dependent on a couple of prerequisites.

Forest enterprises have always searched for ways to improve efficiency. For the past few years there has been an emphasis on stock-keeping levels. Increased demand for fresh round timber and the need to decrease the amount of tied-up capital has made the forest industry reduce its inventory levels. This has brought on a higher demand on the timber supply from the forest management districts concerning both delivery in time and assortment output. As a result, the flow of timber has fluctuated a lot with serious consequence for the timber supply during 1994.

AbstractPurpose ? The purpose of this study is to investigate possible reasons for long lead-time in a customer driven production, and how the lead-time can be reduced. To fulfil the purpose the study has been broken down into two questions.1. Whichfactorsaffectthelead-timeinacustomer-drivenproduction?2.

The report is a master thesis about energy efficient measures for an underground facility Hemsö fortress.Several proposals are evaluated economically.Statistics of the electricity used and measurements of several heat pumps are analyzed to find energysavings potentials.The results indicate that several units of a dehumidification system are responsible for over 70 % of theyearly electricity cost. The air that is being dehumidified by these units can otherwise cause damage ofculturally important interior designs.The proposal with highest profit suggests an alternative method for dehumidification. The cooler in theair handling units in Hemsö fortress have capacity to dehumidify the air. However complementary fansneed to be installed to circulate humid air towards the air handling units. The solution can be implementedin three different locations within the facility.