Today?s society is one where technological advances are made daily, which increases the need to stop and assess the risks against users? integrity when integrating new technology in contemporary systems all the greater. We have taken two technologies, Near Field Communication and Certified Wireless USB, whose envisioned area of use is to be integrated into mobile phones, and evaluated what security threats are revealed for the respective technologies. The threats against security have been identified through research of the standards and existing reports for each technology. Practical experiments have not been conducted on account of us not having access to any equipment to run such trials.

The forest in the county of Småland has been utilised for a long time. One of the most important forms of utilisation of wood has been charcoaling for the benefit of the iron industry. Shortage of forest in relation to the iron industry, was discussed already in the 17th century in Sweden. The aim of this study was to analyse the purchase and consumption of charcoal at Storebro Bruk, an ironwork in Småland, during the period 1793-1850, as well as analyse the shortage of forest at the time. To determine the utilisation of the forest in the area, I have used historical sources from Storebro Bruksarkiv.

Deposits can be formed in the paper machine due to sticky materials from wood and recycled paper. These deposits get stuck on process equipment and cause the product quality to deteriorate and the efficiency of the paper machine is reduced. The purpose of this thesis is to increase the understanding about deposits among machine operators, and to suggest methods that can be used to reduce the amount of deposits formed in Bravikens paper machines.To fulfill the purpose of the thesis a pre-study, a literature review and interviews with machine operators and production staff, were carried out. These methods led to the planning and creation of an education about deposits for machine operators.The education about deposits for machine operators consisted of an interactive lecture to introduce the subject of deposits and a subsequent discussion. This approach was chosen to give the machine operators the opportunity to discuss their work situation on the paper machines related to their new knowledge about deposits.

Vid dimensionering av lokal brand enligt bilaga C, i EN 1991-1-2, så erfordras en värmeutveckling som beräknas i bilaga E. Boverket hänvisar dock i Europeisk konstruktionsstandard, EKS, 9 att bilaga E inte får användas utan rekommenderar i stället att Boverkets allmänna råd om brandbelastning, BBRBE, bör användas. En problematik vid användandet av BBRBE, är att den inte innehåller några beräkningsmetoder för värmeutvecklingen. Det åvilar därför projektören att vid varje enskilt fall vid analytisk dimensionering använda sig av relevanta beräkningsmetoder för att beräkna effektutvecklingen vid lokal brand.Syftet med det här examensarbetet är därför att utreda och jämföra beräkningsmetoder i Eurokod för lokal brand i hyllställningar i livsmedelsbutiker med simuleringar i FDS, Fire Dynamics Simulator, för att komma fram till slutmålet som är att fastställa en metod för att ta fram brandeffektkurvor och temperatur-profiler vid dimensionering av lokal brand. En metod som baseras på ekvationer från bilaga C och bilaga E i EN 1991-1-2.

ProblemThe manufacturing industry is a mature industry where the profit margins are small and the competition is hard. This makes it hard for both manufacturers and resellers to gain market shares and reach reasonable profit margins only by selling products. Therefore Swecon who is reseller for Volvo Construction Equipment tries to find alternative methods and ways to increase their profit. An alternative source of income could be to develop the range of services that are connected to the ground products.PurposeThe purpose of the thesis is to examine how Swecon in southern Sweden can improve their offers of existing services connected to the ground product and investigate the demand of new such services.MethodThis study is based on a qualitative study of five of Swecons local offices and five of Swecons customers. The empirical framework is mostly based on personal interviews but in some cases information was retrieved by using phone interviews.

In the town of Väderstad which lies in the middle of Sweden, called Östergötland is Väderstad-Verken situated. It´s an international company which produce machines for land processing and sown to farmers all over the world. Väderstad-Verken is an expansive company with 750 employees. The turnover is 1.4 billion sek. Rapid seed-sower has become a popular machine since it was introduced in 1991.

Vid dimensionering av lokal brand enligt bilaga C, i EN 1991-1-2, så erfordras en värmeutveckling som beräknas i bilaga E. Boverket hänvisar dock i Europeisk konstruktionsstandard, EKS, 9 att bilaga E inte får användas utan rekommenderar i stället att Boverkets allmänna råd om brandbelastning, BBRBE, bör användas. En problematik vid användandet av BBRBE, är att den inte innehåller några beräkningsmetoder för värmeutvecklingen. Det åvilar därför projektören att vid varje enskilt fall vid analytisk dimensionering använda sig av relevanta beräkningsmetoder för att beräkna effektutvecklingen vid lokal brand.Syftet med det här examensarbetet är därför att utreda och jämföra beräkningsmetoder i Eurokod för lokal brand i hyllställningar i livsmedelsbutiker med simuleringar i FDS, Fire Dynamics Simulator, för att komma fram till slutmålet som är att fastställa en metod för att ta fram brandeffektkurvor och temperatur-profiler vid dimensionering av lokal brand. En metod som baseras på ekvationer från bilaga C och bilaga E i EN 1991-1-2.

Introduction: Dolomite AB was in need of a dummy arm for crutch testing, to complement their existing test capabilities. Background: A large number of people need crutches on a daily basis. For them it is essential that their crutches do not fail. ISO (the International Organization for Standardization) conducts ongoing work to guarantee the durability and function of e.g. crutches.

Probiotics is a special group of health products on the market. The most common type of  these is live cultures of lactic acid fermenting bacteria from raw milk . These include, among others, yogurt and various trademarks such as Hälsofil ®, Acidophilus ®, Dofilus ® and Kefir ®. Such products are often used by patients who are treated with antibiotics to combat the intestinal flora eliminated, thus causing digestive problems. The present work deals with yet another type of health product, viz.

In this work I have tried to reconstruct the forest history within Särna-Idre forest common in northern Dalarna from the 19th century until present time. The Särna-Idre region has been an extensively used landscape for a long time. Pollen which indicates grazing has been found in samples orginating from the 10th century. Early travellers from the 18th and 19th centuries seem to have been passing trough a "used" landscape. Burned forests on naked ground are described as common. Also large areas are mentioned as undisturbed with lots of large trees, snags and dead wood.

Bakgrund: Vid operativa ingrepp finns en risk för överföring av smitta mellan personal och patienter. Lokala riktlinjer ska reglera användningen av personlig skyddsutrustning. Huvudskydd används för att hindra hår och partiklar att falla ner på sterilt område. Ögonskydd skyddar personalens ögonslemhinna mot stänk av kroppsvätskor och användandet av dubbla handskar minskar risk för blodsmitta vid stick- och skärskador.Syfte: Syftet med denna studie är att undersöka preoperativa val av och motivering till val av huvudskydd, ögonskydd och handskar hos operatörer och operationssjuksköterskor. Metod: I en empirisk, deskriptiv studie med tvärsnittsdesign undersöktes val av och motivering till val av huvudskydd, ögonskydd och handskar. Operationssjuksköterskor och operatörer observerades och tillfrågades med stöd av ett strukturerat frågeformulär.Resultat: På två operationsavdelningar i Stockholms län utfördes 240 observationer.

This Master?s Thesis aims to investigate and assess the methods used to decrease the discharge ofmetals, primarily copper, from the water purification plant at Assa Industries plating factory inEskilstuna.Literature studies of the purification methods precipitation, ion exchange, evaporation, reverseosmosis and electrolysis has been done to appraise the adequacy of the technique. Thesetechniques are commonly used for purification of industrial waste water.Assa has four plating lines: the Trumline, the big Zinkline, the new Zinkline and the Decorativeline. The new Zinkline is the most modern of the four lines and purification is done byrecirculation over an ion exchange unit. The demand for fresh water is thereby heavily reduced.The Trumline, the big Zinkline and the Decorative line all use older techniques.

This thesis is a part of the project "Sustainable harvesting and storage of sugar beets, more sugar to practice". The work has included a large part of practical experimental work with weight measurement, graduation and storage planning. The aim of the project is to be able to see whether the cultivars react differently in different storage conditions. The project has included storage under controlled conditions to give as accurate results as possible. To be able to mimic the farmers own preconditions the samples was harvested with a conventional Holmer.This project has two parts, one concerning the nature, time and temperature on storage where a number of different cultivars where investigated during three different recording times, two different temperatures and controlled in a controlled environment.

Background: The demand for sending letters, in the traditional aspect, has decreased because of electronic sources which have replaced a big part of letter communication. The Postal Service constantly strives for lowering costs and due to the changeable demand, a greater awareness is required regarding recourses and their usage. The previously mentioned measures in combination with commonly occurring quality issues during the collective process at the letter terminal in Alvesta would be improved by applying a lean-perspective to the process. A first step towards saving of time is to apply the ?value stream mapping?-method on the collective process for small and large letters.Purpose: To map the process of collection for small and large letters to be able to identify waste of recourses and furthermore give suggestions on how the Postal Service would be able to reduce the waste of recourses identified.

Med ett växande fokus på ett långsiktigt hållbart samhälle som tar ansvar för miljön strävar fordonstillverkare efter att sänka energiförbrukningen på sina fordon. Detta arbete behandlar hur man kan sänka bränsleförbrukningen för lastbilar med påbyggnader. En påbyggnad kan t.ex. vara en kran, en lastväxlare eller en betongpump. En metod för att sänka energiförbrukningen är att sänka det varvtal som lastbilens dieselmotor arbetar vid.