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2918 Uppsatser om Side effect - Sida 63 av 195

Överföring av elektrisk signal och effekt med magnetisk induktion.

This report tested the possibility of using induction as a mean for transferring data and power so that it can be implemented as a communication medium between a terminal and measuring head mounted in a measuring frame. This would eliminate the need for the cable bunches that are used today. For testing, signal generators were used to generateFSK-signals and were transferred with the help of inductors to the oscilloscope for signal detection, this to see how the coils used in the tests behaved. Simulations of a PLL were performed to see how good it could handle FSK-demodulation. With the help of a PLL IC and the simulations a working FSK-demodulator could be assembled.

Janusansiktets potentialitet: en studie mellan erfarenhetsrum och förväntningshorisonter

This essay will discuss the Roman God Janus, as a figure of speech, in four different texts written by Publius Ovidius Naso, Michel de Montaigne, Francis Bacon and Elijah Fenton. The Janus figure could also illustrate the relationship between the past, the present and the future, because of the attributes of looking back and forward, in both space and time, that Janus was said to possess. Reinhard Koselleck's ideas of space of experience and horizon of expectation will be used as an analytical approach, thus creating a dual purpose for this essay. On one hand to understand texts about Janus, which implies an understanding of the changes over time associated with the history of ideas of Janus, and on the other the past's importance in relation to the future, which includes an understanding of Janus via Koselleck's thesis about the change in relationship between experience and expectation.The question formulations are as follows: How has the Janus motive changed over time in the researched texts? How can the literary use of Janus show the changed relationship between the space of experience and the horizon of expectation, and in a wider context between the past and the future? Janus has gone from being a physical presence, as the arcs of the Forum Romanum in ancient Rome, to becoming a tool for authors, one that spans many literary rooms.

Sambandet mellan kontroll i arbetet, psykologisk flexibilitet och välmående

The work organization variable control and the individual characteristic psychological flexibility are two concepts that affect employees? well-being at work.This cross-­sectional study examined the extent to which these variables correlated with burnout, mental health and job satisfaction among homecare workers in Sweden (N=68). As hypothesized, results showed that both control and psychological flexibility were associated with burnout and job satisfaction. Findings also showed that psychological flexibility was associated with mental health. Moreover, the results indicated that there is an interaction effect between control and psychological flexibility in relation to these variables.

Ammoniakförluster vid flytgödselhantering : myllning och surgörning som metoder för att minska avgång vid spridning

The ammonia emissions are an environmental issue since they contribute to eutrophication. By far the largest source of ammonia emissions is manure from agriculture and should therefore be reduced. Loss of ammonia is not only negative for the environment but also to the farmer who loses nitrogen that could have been used by the crop. The focus of this study has been emissions from spreading slurry where the loss can vary widely depending on slurry-, soil-, and weather conditions. There are mainly two different ways to reduce the emissions. One is to inject or mix the slurry into the ground to avoid air contact. The other way is to use acid to reduce the pH in the slurry to a level between 5 and 6 where the equilibrium is so strongly pushed to NH4+ that hardly any NH3 can be lost.

Elevers tankar om klimatförändringar

This work examines the students´ thoughts on climate change with a focus on carbondioxid through photosynthesis and the carbon emissions from cars. The study is based on two subject areas, one with a focus on enhanced greenhouse effect, and the other focusing on photosythesis. The survey was conducted by means of qualitative interviews with students in grades four and six. The results describe that student´s understanding for photosynthesis and the carbondioxids function for photosynthesis doesn´t change significantly from grade four to grade six. I have divided the students inte three levels based on their understandingof the various fields, and their use of adequate concepts.

?skolan idag bara är till för att indoktrinera och passivisera?. En studie om elevinflytande i en av Malmös gymnasieskolor - [The school today is just to indoctrinate and passive: a study about student participation in an upper secondary school in Malmö]

Democracy is now a legitimate claim not only in the society but even in the classrooms. According to the 1994 Curriculum for the Non-Compulsory School System, Lpf 94 in Sweden, are all pupils in all types of schools ought to have a high level of possibilities to be able to influence their education. But many studies have led to unsatisfactory results about the actual situation in schools. Swedish students are critical of the limited opportunities they have in influencing their own learning process. This essay is only one among the many studies that have dealt with school democracy during the last 50 years.

Inverkan av nederbörd, temperatur och frost på årsringens egenskaper hos boreal tall (Pinus sylvestris L.) :

The wide distribution range of our boreal pine (Pinus sylvestris L.) provides a great variation in growing conditions and climate/weather factors that influence the wood development of the trees. A great number of extensive studies have been conducted over the years in order to clarify growth trends of this and other species over more or less wide-ranging areas. In this thesis effects of weather factors were instead compared between different forest stands from the about same geographical location. The effects of precipitation, temperature and frost on the year ring characteristics of pine were studied in the research forest of Svartberget Vindeln, in northern Sweden. The stands differed in site index and silvicultural treatment; fertile ? high stem density, fertile ? low stem density, poor ? high stem density and poor ? low stem density.

En jämförande studie av IPv4 och IPv6

The Internet protocol of today has been used for over 20 years. A new version of the protocol has been developed to replace the old one. This is a direct result due to the explosive growth of the usage of the Internet. This follows by new demands which needs new solutions. This report brings up the old protocol IPv4, the new protocol IPv6 and shows what kind of changes that has been developed to meet the users demand.The report brings up two important aspects; internet security and mobility.

Design av PID-regulator baserad på kommersiell processormodul

The idea to develop  a platform for a PID-controller came from the need to control the temperature in  an espresso machine in a more exact way than a thermostat could perform. In discussions with Syntronic AB the idea developed into PID-control for industrial use. Syntronic AB suggested that the platform should be based on a commercially available processor module to shorten the development time. The suggestion included the use of the microcomputer Raspberry Pi, which supports USB, HDMI, memory card and Ethernet.The work began with establishing a schedule for the 10 weeks of the projects duration, and after that a system specification listing all functions, implementation and limitations was made. When the foundation of the system specification was done, a preliminary system design took shape.Because of the Raspberry Pi´s lack of Analog-to-Digital converter, a circuit board containing Wheatstone bridges, differential amplifiers and a two channel Analog-to-Digital converter was fabricated.

(Om)skärningspunkten i en rättighetskonflikt: En kvalitativ textanalys av debatten kring manlig omskärelse

The purpose of this thesis is to build on the current debate on male circumcision and from thetwo perspectives, consequentialism and non-consequentialism, describe the conflict of rightsthat exists on the issue and outline a normative conclusion about whether Sweden should banmale circumcision of boys or not. The idea is to clarify how the two sides' approach to theconflicting rights differ on the issue. The perspectives intends to provide further clarity to thearguments and provide a framework to resolve the rights conflict by, which creates morefavorable conditions to understand the moral bearing of the arguments in the debate. Thesurvey is conducted as a debate analytical study, conducted by compiling and organizing thearguments for the various positions in the debate. Based on the two theories I conduct ancritical analysis in which I examine the extent to which the arguments of each side lives up tothe perspectives moral standards.

Deaktivering av metanisering katalysatorer

A titania-supported nickel catalyst was prepared and tested in methanation in order to evaluate its catalytic properties (activity, selectivity and specially, activity loss), and compare it with an alumina-supported nickel catalyst.The titania-supported catalyst did not only show higher stability than alumina, but also presented a different cause of deactivation, carbon formation. In addition, a kinetic model was obtained for the titania-supported catalyst, and a study of the effect of different operating conditions (temperature, composition and partial pressures of synthesis gas and water) on the deactivation rate and carbon formation of this catalyst was performed.

EW26 : Drivanordning för vertikaltgående fönsterpartier

EW26 is a Bachelor thesis carried out by students, Jessica Blomberg, Sara Danielsson and Mikael Johansson, during the academic year 2010-2011 at the Innovation Engineering Program of Halmstad University. The project was conducted in close cooperation with Ergosafe AB.Ergosafe develops, manufactures and sells electric sliding windows. Due to the company?s current expansion phase they want to increase their product range. The company has identified a need for large windows that moves vertically.

EU:s normativa närvarande i Makedonien : - en kvalitativ studie

This thesis treats the normative power of the European Union and its affect on Macedonia. The main purpose has been to look closer with the use of the application of Ian Manners theory of normative power on the Macedonian case. The focus will be to answer the following questions: Does the European Union act as a normative power in relation to Macedonia, if so, how are these values diffused? Has there been any effect of the spreading of these values? Based on six interviews and the available material of European Union strategies for the Macedonian membership I have attempted to understand to what extent the European Union?s normative power has had an influence in Macedonia. The result of my analysis is confirmation of the European Union as a normative power in Macedonia and the understanding of the methods of application..

Museibesökare i konstnärens närvaro : Performativitet och det ritualiserande i Marina Abramovi? verk The Artist is Present.

In this essay I analyze the performative aspects relating to Marina Abramovi?'s The Artist Is Present, which took place in spring 2010 at MoMA in New York, from the context of the artist and work, institution and documentation. In this performance work, for the duration of the exhibition, Abramovi? sits completely still opposite another chair where anyone from the audience may sit. The art arises through this participation.

ADHD och fetma hos vuxna personer : En litteraturstudie

ABSTRACTThe aim of this study was to describe various methods of treatment and effects of treatment of ADHD, and to investigate wheater there is an association between adults with ADHD and obesity. Method:  Literature review. Twelve quantitative scientific articles were found in the data bases PubMed, Cinahl and MedLine.  Result: ADHD is a cognitive impairment that can lead to serious complications such as obesity. Studies show that drug treatments of adults with ADHD have positive effects in terms of reduced symptoms, increased efficiency and improved quality of life, but drugs can also cause Side effects in form of loss of appetite and insomnia. For adults with ADHD and obesity drugs that affect metabolism have a significant impact on patients ability to lose weight.

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