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955 Uppsatser om Solid-phase synthesis - Sida 13 av 64

Fastställande av referensintervall för fibrinogen i plasma hos friska föl :

Establishing a reference interval for plasma fibrinogen in foals Fibrinogen concentrations were analysed in EDTA preserved blood plasma samples from 34 thoroughbred foals born in 2001 and 2002 at one stud farm. The foals were between 0 and 240 days old at the time of the sampling, and there were 19 fillies and 12 stallions in the group. The foals were examined for clinical symptoms of disease and their body temperature was measured before blood was sampled from the jugular vein. From totally 156 blood samples, 31 were selected as originating from clinically healthy foals, and used to determine a reference range for thoroughbred foals. Samples originating from foals showing clinical symptoms of disease or an abnormal body temperature at the time of sampling, were classified as coming from unhealthy animals.

Topprestation

To achieve peak performance as a young elite athlete, there are many psychological andphysical factors that have impact on human?s performance. Factors that affect theperformance interplay and interact must work to maintain ability to perform at its peak.The purpose of this study is to examine the factors that contribute to peak performance.Data collection method of the study has been done with a questionnaire, addressed toyoung elite athletes on a secondary school. It was 87 respondents who participated onvoluntary and anonymously conditions. The respondents consisted of men and womenbetween 16 and 19 years old.

Riskkapital & medicintekniska företag : En undersökning om finansieringen från riskkapitalister till svenska medicintekniska företag i introduktions- och expansionsfas

Background: Small businesses are key participants in the growth at the Swedish market, partly for the labour opportunities, the technology and economic development. These companies should get resources to grow, both political and economic resources. The medtech companies in an introduction and expansion phase meet with problems concerning the financing of their growth. Key participants whom offer financing are Venture Capitalists.Purpose: The purpose of this study is to examine Venture Capitalists demands on medtech companies in an introduction and expansion phase. A comparison between the demands and how well medtech companies achieve them will be done.

SFEH. The clothes. The brand. The style.

SFEHA project about a clothing brand and a new kind of showroom that looses it´s structure during the process.But managed to find the core and produced a personal mirror of prints for a greater cause.Sfeh is the brand with quality and humor in focus and the will to push the boundries. With prints based on free drawing and smart thinking as it´s essential base.The project resulted with a various collection with mostly T-shirts but also textile gloves and bed sheets..

Gummitryck eller Photoshop : Kan gummitryck motiveras om det går att få samma resultat digitalt?

The purpose of this work is to develop and test a design process where quick decisions and model building has a prominent role. The goal is to develop a number of products and build prototypes to be shown during the Carl Malmsten Furniture Studies spring exhibition 2012. I?m also writing a report describing my work.To reach my goal I have each day during the first phase conducted a short research and found a concept based on that days name day. Then I have continued in the workshop and worked with three-dimensional models.

Optimering av sintrade kugghjul

Powder Metal (PM) gears are machine element components which operate under the same principle as conventional gears, but, due to their intrinsic material characteristic need to be designed slightly different, and its manufacturing process offers advantages previously unobtainable by conventional steel gear manufacturing methods. The use of PM in similar applications, such as synchronous hubs, makes them a suitable candidate for production in such material. The current master thesis work focuses on gear design using PM by utilizing finite element method (FEM) to reduce weight and inertia taking into account root bending strength and tooth deflection.First a topological optimization is used to determine feasible candidates for different web designs which have as objective to reduce volume, similar topologies were shown during different loading conditions; and hence, this topology was chosen as a suitable candidate. A shape optimization of the topological candidate was performed having as state variables root bending strength, independent for compressive and tensile side of the tooth loading; and tooth deflection, which in concept can be correlated to static transmission error (TE).Another aspect in this thesis analysed is the possibility to incorporate non-trochoid root geometry, a trochoid root is always present when machining with a hob, into the gear root and hence reduce the stress concentration here. Due to the use of PM, a non-symmetric optimized root can be achieved and hence be optimizing compression and tension.Results showed significantly lower inertia, for example certain results showed 40% reduced when compared to solid gear, with adverse effects as increase in tooth deformation and increase in maximum principal stress.

Produktkalendern : - en alternativ designprocess med namnsdagar som utgångspunkt.

The purpose of this work is to develop and test a design process where quick decisions and model building has a prominent role. The goal is to develop a number of products and build prototypes to be shown during the Carl Malmsten Furniture Studies spring exhibition 2012. I?m also writing a report describing my work.To reach my goal I have each day during the first phase conducted a short research and found a concept based on that days name day. Then I have continued in the workshop and worked with three-dimensional models.

Produktivitet vid stubbskörd :

Stump harvest could be found in the late 1970?s and the early 1980?s. And now when the prices on energy are high it has become an interesting topic again. This work has been conducted within Holmen Skog?s stump harvest testing in Norrköping.

Dyslexi : Några lärares upplevelser av att undervisa elever med dyslexi

AbstractThe ability to read and write is a very important skill in today?s information based society. Most of us learn how to read and write, but not everyone is blessed to do this without struggle. Dyslexia is a very common learning disability and therefore I found it interesting to study how teachers teach students with dyslexia.By studying the literature and by interviewing teachers, I found that dyslexia is a very complex disability. The teachers have to adapt their way of teaching in a way that a student with dyslexia can participate.

Faktorer som påverkar magnesiumabsorptionen i våmmen hos kor

In metabolism Mg plays an important role because it affects many cellular enzymes in the body. The energy metabolism and protein synthesis are dependent on Mg as an enzyme activator, Mg is also involved in the synthesis of RNA and DNA. Absorption of Mg primarily takes place over the ruminal epithelium in ruminants. The main storage of Mg is in the bones but that can only be reached if the cow is in great need of calcium or phosphorus, it's a hormonal regulated process that induces catabolism of bones. Free and available sources of Mg are found in soft tissues and in the extra cellular fluids that includes cerebrospinal fluids and blood.

Kemin bakom framtidens avgasrening : En studie av ureasönderfall under kvävgasatmosfär

The purpose of this work was to provide a better understanding of urea?s decomposition and byproduct formation in an SCR system on heavy trucks. In my experimental setup with TGA-DSC-FTIR (a combination of two thermal analysis methods and a method for gas phase detection), an FTIR method for urea in the gas phase was developed for the qualitative and quantitative determination of urea and its decomposition products. Chemicals such as urea, biuret, cyanuric acid and melamine of p.a. quality were used in this method development. Beforehand, there was no FTIR method available to detect these substances; hence, the aim of this work was to develop an FTIR method to understand the degradation chain of urea. The combination of TGA and DSC was used for analysis of different samples, where urea, biuret, cyanuric acid and melamine in varying amounts have been weighted in for various experiments in order to study the temperature at which a phase transition or reaction occurs, i.e.

En diktaturs väg in i Informationssamhället Kina och World Summit on the Information Society

This masters thesis investigates the relation between China and the Information Society as it is manifested in the UN conference the World Summit on the Information Society WSIS. The first phase of this two-phase conference took place in Geneva 10-12 December 2003, with two documents, Declaration of principles DP and Plan of action PA, as main results. The information policy is central to an authoritarian rule in its efforts to keep control over the national identity. The thesis investigates the impact that the information revolution and Internet might have on the Chinese national identity through the acceptance of DP and PA in various aspects. With the use of the information science theories by Manuel Castells and Frank Webster, the vision of WSIS was compared with the Chinese information policy.

Modellering av en panna med rörlig rost :  

The aim of this master thesis was to create a dynamic model for the processes in a solid fuel boiler of the moving grate type. Another aim with the model was to keep it as simple as possible but still able to catch the dynamics of the processes in the bedplate of the boiler. The creation of the model had its origin from drying and combustion equations used in earlier modeling work of boilers. The represented model has been used to simulate different kinds of disturbances in a boiler and different ways to control the boiler. These tests show that controlling a number of parameters in the bed of the boiler is an effective way to keep the grate stable during disturbances.

Omkonstruktion av en rollators bromssystem

This diploma work project is a product development project which purpose is to redesign a braking system for a walking frame. The system that was developed diverges the force from the user to braking power, and includes a service brake as well as a parking brake. The most important components of the system are a grip handle on where the user holds on to and a braking handle on which the user operates the brake from. The system also includes a power transmission component, braking package and other mechanical components. All of the components wasn?t developed in this project, several off them has been reused from the existing system.This product has been developed to meet the requirements and standards presented from the principal, Ahlberg Leber.

Implementering av ESG-kriterier i investeringspraxis : En studie om venture capital-företag i Sverige

Purpose: The purpose of this study is to examine how venture capitalists implement ESG issues internally, as well as before the investment decision and during the investment period.Theoretical framework: The theoretical framework consists of previous studies that identify different driving forces behind the work of the ESG and present a number of different strategies for implementing ESG issues in the investment process.Method: This study aims at providing an understanding of a phenomenon which implies an inductive approach. This thesis applies a qualitative method of data collection in the form of semi-structured interviews. The sample in this study consists of venture capital companies that were members of the SVCA (Swedish Venture Capital Association) during the time of the survey, 2015.Result: The empirical findings in this thesis consist of a presentation of the data that was generated from eleven interviews conducted with eleven different investors in the venture capital sector.Conclusion: This study indicates a lack of written policies regarding internal work with ESG-issues which were offset by the application of the "unwritten" policies. Implementation of ESG-issues during the pre-investment phase was dominated by an avoidance of investments in sectors which lead to a negative impact on society. During the post-investment phase ESG-issues was integrated by monitoring the portfolio companies' operations.

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