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905 Uppsatser om Phase shift - Sida 11 av 61

Kartläggning av energianvändning under byggfasen vid nyproduktion av flerbostadshus

The energy consumption in the sectors of residential and public buildings is 40 % of the total energy consumption in Sweden. The main part, 85 %, of the energy use in these sectors is for operation of the buildings. The rest is used in the building process. When energy-efficiency measures are taken the energy use during the operation time decreases and the fraction of energy consumption during the building time increases. This project is carried out in cooperation with JM AB and concerns the energy use during the building time of production of blocks of flats at the building site.The main part of the electricity that is used during the production of apartment buildings goes into the heating of portacabins and illumination of the building during the construction phase.

Från Tahrirtorget till ett(o)demokratiskt Egypten? : -Demokratins förutsättningar och utmaningar i Egypten, efter den arabiska våren 2011

The aim of this bachelor thesis is to through a theoretical analyze, investigate the conditions and the challenges for a consolidated democracy in Egypt from 1952 until after the revolution of 2011. The central question in this thesis is what opportunities and challenges are there for the democratic consolidation in Egypt, with respect to civic, political and economic conditions. How have the conditions developed between 1952 and 2011? How has the transition government/military government handled the central problems in the transitions phase after 2011? The theory used in this analysis is Linz and Stepans famous five arenas (the political society, the economic society, the civil society, the bureaucracy and the state of rule, whit focus on the three first). Through a qualitative case study we have analyzed the conditions in Egypt from 1952 to after the revolution 2011.The empirical material shows that the arenas in Egypt are both historically and current very weak, and they are not supporting democratic consolidation as they are challenged by several enormous problems.

Analys av mätdata från nätstationer

Fortum has in a pilot project installed metering equipment with wireless communication in secondary substations in Stockholm. So far, the collected data are used only in specific projects.This master thesis was carried out at Fortum Distribution AB in Stockholm during 2013. The purpose of this study is to simplify and enhance the use of data in for example network planning process, by giving suggestions on how data can be managed and giving examples of analyzes that collected data can be used for.The electricity meter which Fortum has installed is a EDMI-Mk10A which is set to measure max/average/min values with a one hour time resolution of the following parameters: voltage (per phase), current (per phase) andactive power and active and reactive energy.In order to analyze the collected data an analysis tool is required. During this thesis two customized tools in Microsoft Excel have been developed, one for sorting data and one for analyzing.One aim of the thesis is to show examples of what collected measurement data can be used for. This work shows an example of analysis of active power, power factor, voltage, occurrence of interrupts and the relationship between outdoor temperature and power.This master thesis has among others resulted in the following advice: Expand the number of secondary substations with measuring equipment.

Comparison of Different Electrophoretic Methods for Haptoglobin Phenotyping and an Investigation in Patients with Abdominal Aortic Aneurysm

Haptoglobin is an acute phase protein with important biological role because of its capacity to bind to haemoglobin. Haptoglobin exists in three major genetic polymorphism types: Hp1-1, Hp2-1 and Hp2-2, the distribution of which has been associated with abdominal aortic aneurysm (AAA), an asymptomatic aortic disease common among men older than 65 years.    Five different electrophoretic methods were tested according to their ability to separate the haptoglobin phenotypes. The detection was based on a produced hemolysate of blood in which haemoglobin binds to haptoglobin thereby forming a complex that can be detected by specific haemoglobin staining using TMB-dihydrochloride and hydro peroxide as substrate resulting in an azure-green color of the bands. Samples from 15 patients who had suffered surgery for not broken AAA, that is more than5.0 cmaortic diameter, and 15 samples from matched controls were analyzed.    Among the five tested electrophoretic methods best migration and separation was seen on the pre-cast agarosgel Hydragel HR on the instrument Hydrasys. The other four methods gave less successful results.

The role and influence of the Architect in industrialized building

An emerging trend within the construction industry is the expectation of the customer to experience and sense the product, maybe even in a customized manner. The latter trend would extend the necessity of incorporating not only function and aesthetics, but also perception and sensation. To meet this trend while at the same time improve the productivity the use of information technology such as BIM and technical platforms has increased in construction projects. Nevertheless, in spite of large investments, the construction industry has not managed to increase the effectiveness and productivity as much as other industries. Evident is that successful use of information technology depend on the integration and collaboration of various experts in a continuous and dynamic process.

Enantioselektiv HPLC-analys med kirala stationärfaser bestående av makrocykliska glykopeptider och polysackarider

The purpose of this study was to evaluate enantioselective analytical methods by separation of the enantiomers of four drugs (citalopram, zopiclone, tramadol and methylphenidate) and their metabolites. The analyses were performed with HPLC-UV with columns whose stationary phases were based on macrocyclic glycopeptides (Chirobiotic V, V2 and T) and polysaccharides (Lux Cellulose-1, Cellulose-2 and Amylose-2).The Chirobiotic V column showed high selectivity for citalopram and its metabolites. High resolution was obtained using a mobile phase consisting of methanol, acetic acid and ammonia. High selectivity for the enantiomers of zopiclone and its metabolites were obtained on the Cellulose-2 column using a mobile phase consisting of acetonitrile and ammonium acetate buffer.The enantiomers of tramadol were separated with the Amylose-2 column. However, changes in the pressure arose, probably caused by the additive NH4HCO3.

Generations- och ägarskifte i ett fåmansföretag : Hur påverkar de nya lagändringarna ett generations- eller ägarskifte?

Den 1 januari 2014 trädde nya regler för fåmansföretag och dess ägare i kraft. Ändringarnagenomfördes mot bakgrund av att nuvarande regler ansågs överkompensera stora fåmansföretagmed många anställda. Uppsatsens syfte är att utreda om och i så fall hur de nyalagändringarna påverkar ett generations- eller ägarskifte.Genom de nya fåmansföretagsreglerna infördes b.la. bestämmelser om en höjning av detlönebaserade utrymmet, en sänkning av löneuttagskravet för att få beräkna lönebaserat utrymmeoch en definition av termen dotterföretag. För att genomföra ett generations- ellerägarskifte används olika typer av metoder.

Linné hemvård : En grafisk profil till ett nystartat företag

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.

Att skapa bilden av biblioteket : Åtta bibliotekariers upplevelser av deltagandet i projektet Futurum.kom

In this two years master's thesis a regional project, Futurum.kom, is studied through the experiences of eight librarians from two of the participating libraries. The interviewees have all attended local and regional seminars where questions about core values, target groups and the role of the public library were discussed, among others. The seminars resulted in a number of core values and target groups. During the project, a number of advertising campaigns are to be conducted. The first one of these had recently been implemented at the time of the present study. The aim of the thesis is to investigate the interviewees organizational self-perception in relation to the project.

Design och framtagande av mätanordning för ström och effek på trefas ledare : Josi Periferi strömmeter

The assignment is issued by Scania Maintence AB seeking a new approach to detect power changes in their industrial processes. The work has taken place at Ångströmslaboratoriet and tests have been performed at Scania AB Södertälje.Today?s society consumes enormous amount of energy. In both economically and environmental view, it is important that the processes are effective, with high power factor. There are many ways to measure power in the industry, what they all have in common is that the installation is advanced, requires time and planning.

Aggregatstabilitet, jordbearbetning och fosforförluster i ett typområde på jordbruksmark :

Large amounts of phosphorus (P) are lost from the arable land due to water erosion. Both phosphorus attached to particles and dissolved phosphorus (mainly phosphate) are transported away with drainage-water and surface runoff. Good soil structure is important in minimizing these losses. In this study, soils from 50 fields were analysed with respect to aggregate stability as measured by dispersion of clay together with the content of total phosphorus (TotP), particulate phosphorus (PP) and phosphate phosphorus (PO4P) in the water phase. All soils were clay soils with clay content varying between 21 and 54%.

Delta X : Utveckling av värmeväxlare

Stockholms vattenskärning AB in Kungsängen has through the acquisition of a company begun to design and produce aircraft heaters whose origin is early 1970s which follows a high inefficiency in terms of energy consumption and size.The aircraft heater, which is sold worldwide, serves its purpose for customer satisfaction and has done so ever since it was developed in the 70s.Stockholms vattenskärning AB is now investigating the possibility in making the aircraft heaters more efficient, both in terms of energy consumption but also on a more efficient design with the belief that it would lead them to an edge in the market. The aircraft heater consists of several main components whose function altogether is to keep passenger aircrafts warm while they are on the ground.This project has been limited to the further development of the heat exchanger package which accounts for the conversion of the hot medium to the fresh air being carried in to the aircraft cabin. Work has been divided into different phases in order to create a better understanding of the project range and to make it easier to divide the various elements in the time available, 10 weeks. These phases are literature review, situation analysis, concept generation, CAD, concept comparison and writing reports.After the initial literature review was made, a fundamental theory was written which is essential in understanding the remaining parts of the project.With the theoretical part as support, measurements and calculations were made on the current heat exchange package in a situation analysis to ensure its operation and efficiency.In the concept generation phase, the collected facts from the literature review was used as the basis for creating a matrix. The purpose of the matrix was to indicate the two most suitable types of heat exchangers to develop four new concepts out of.In the CAD phase the four concepts was drawn up and then described with text and images.The last phase is the concept comparison where a concept selection matrix is used to function as a decision basis for further production at Stockholms vattenskärning AB. The four concepts have been developed based on the current heat exchanger and is gradually changed into a design of a cross-flow heat exchanger constructed out of stainless sections. The purpose of this is to have gradual upgrading of the heat exchanger as an option, in order not to saturate the market..

Hur uppfattas pcSKOG AB och pcSKOG-gård av privata skogsägare? : en undersökning av en programvara för privatskogsbruket

pcSKOG-gård is a computerised manager plan for private forest owners, developed by the pcSKOG AB. The program is based on forest stand data, joined with a map of the forest and GIS-applications. The purpose is to offer a program for private forest owners managing the forest and with the possibility of updating the actual status of the forest. The company pcSKOG AB is the leading producer of programs for forest management and has developed the program since 1997. The program is currently the most common program used by private forest owners in Sweden. The aim of this thesis, leading to MSc in forestry, is to investigate the purpose of the private forest owners when purchasing the pcSKOG-gård. The thesis also studies how private forest owners use the program, what they use it for and how the private forest owners state that the program has achieved to fulfil their expectations. The thesis is also a market research concerning the knowledge and attitudes the private forest owners have about the program and associated services. The study material has been collected during two phases.

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.

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