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4400 Uppsatser om Methods of calculation - Sida 17 av 294
Logistik för stråbränsle :
Summary
Today energy prices are rising. As a result biomass fuel is getting more and more
interesting. Wood chips is very popular, but also straw from grain production is on the
table. Lunds Energi AB project a combined power and heating plant in Örtofta out of
Lund. Wood chips is meant to be the main energy source, complemented by straw.
In this thesis the transportation of straw for fuel is studied.
Import av avfall för energiutvinning ? en systemanalys av avfallshanteringens klimatpåverkan
This study has examined if importation of waste for energy recovery can reduce the climate impacts of Waste Management Systems.
Using Systems Analysis this study will try to examine the complex waste systems in a systematical and strictly logical way to see how these systems interact and affect each other. Specifically examining the climate impact of waste management systems in England.
The traditional way of handling waste in England is through Landfills. Land filling leads to emissions of the greenhouse gas Methane. The EU has put in place a landfill directive that is supposed to lead the member states away from land filling as a method of waste management.
Today in Sweden there is a competition for the waste available for incineration. The worsening economical situation together with less product packaging and an increase in source separation leads to a lack of waste available for incineration.
Mobbning : Fyra pedagogers förebyggande arbete mot mobbning
Bullying is a big problem in schools and many children are afraid of go to school. There are many methods and measures to prevent bullying, but bullying is still remains. This study is about the differences and similarities between methods to prevent bullying at two classes. The purpose of my essay is to research measure that uses by four teachers to prevent bullying and to get description of their work against bullying.My question is: How is the prevention of bullying in the two classes where informants working?This study is focuses on prevent bullying at two classes on two multicultural schools in Stockholm.
Hur påverkasogräsuppkomsten av jordbearbetning :
Today it is common to spray against most weeds by using very expensive weed-killers.
The goal for every farmer is to have as low costs as possible for their use of machines and weed-killers.
Therefore it is in everyones interest to find other methods to fight the weeds.
Finding a way to reduce the rise and growth of weeds already at the preparation of the soil would lower the number of laps over the field and also decrease the amount of weed-killing dose.
Tests show that by harrow in the dark it is possible to reduce the population of weeds with up to 60%, but the normal reduction would be about 20-30%.
To verify the results above we made tests by using two different methods of preparing the soil. We tested ploughing and harrowing in daylight and during night. Later we checked the number of different weeds in areas prepared in daylight and during night.
By studying the results from the different methods used we found a considerable reduction of some kinds of weeds in areas prepared during night..
Värmeväxlare med luftkonditionering för tvättstugor
The energy in laundry rooms, in form heated air, can be utilized with a heat exchanger. A concept and an early prototype of the heat exchanger have already been developed to show that the theory works. This report describes the continued development and construction of the product.A field study was made in order to investigate the environmental usage and establish the product design. The most common washing machine was used as a calculation model, and calculations were also made to estimate the amount of energy in the air. A previous analysis of the existing prototype is also presented in this report, to show the products potential capacity.
?Närmast i tiden är det ju blåssidan som gått ned.? : En studie om musiklärares och rektorers syn på barns instrumentval och kommunala musik- och kulturskolors rekryteringsmetoder
The purpose of this study is, on one hand, to obtain an understanding of how children in municipal music- and culture schools choose instruments and what forms of recruitment methods they are subjected to, and on the other hand, how you can make them continue to play once they have begun.To acquire this information, I have interviewed five music teachers and two principals at municipal music- and culture schools in Värmland. The questions treated, among other things, what affects children?s instrument preferences, recruitment methods and what you can do to keep interest for the chosen instrument alive.The result of the study shows some apparent tendencies. Even though some of the instruments have trouble recruiting students and other instruments have trouble keeping them, the old methods, which obviously do not work in a satisfactory manner, are still being used. Instead, increased commitment at the occasion of recruitment, more group teaching which strengthens the social bonds through role models and a will to have the courage to change the organization when it does not work, is required..
Forensic Carving from Unallocated Space
Computer Forensics investigations have become more and more common while
investigating IT-related issues. From experience, hard disks, USB thumb, memory
sticks contains information that might be useful. Computer Forensics is
regulary conducted by Police, Customs, Tax investigators but also within
private companies and organisations. However, there are areas within the
storage device that are not part of the organisied structure that a file system
gives. The reason for that might be that the information has been erased by
intention, a virus destroyed the file system and so on.
Olika vägar mot samma mål : En studie av elevers fonologiska medvetenhet i tva? klasser
AbstractThe overall aim of this study is to show how phonological awareness develops during the first school year and how this can be affected by different teaching materials and working methods. Two classes are compared in the study. One of the classes has digital teaching material and the other class has traditional teaching material. The study seeks to show to what extent there are differences between the groups? phonological awareness.
Transporter på väg - En studie över Sveriges lastbilscentralers metoder för att möta ökande drivmedelspriser
Background and problem: In the last few years the threat against the environment and especially the emissions of carbon dioxide has become increasingly debated. The government have set up a goal to lower the emissions of carbon dioxide with 40 percent until 2020 compared to the level in 1990. The emissions in the transportation sector have, in contrast to the total emissions, increased since 1990 and will continue to increase unless powerful control measures are implemented. The lorry centres have to use strategies to answer to these external threats which lead us to the two questions of this thesis: - What methods do the lorry centres use actively and which do they consider as the most important methods for fuel saving? - Are there any differences which methods small, medium and large centres considers as important? Purpose: The main purpose of this thesis is to examine which methods lorry centres use actively and which they consider as important for fuel saving.
Framtagande av kravspecifikation för standardsystem
There are several methods and models within the areas of software engineering on how to proceed during a software development process. For each of these methods and models there are benefits and drawbacks, depending on how you choose to look at them. A difference of principle between the different models is that they either advocate iterative development or not. In parts of software engineering one makes use of different methods depending on which is most fitting in a specific situation. There are several methods on how to recieve more qualitative data from the end-users during the requirement collection, but the reappearing pattern is still user centric participation, which means that the user participates more actively in part of or the entire development process.
När delar blir till helheter eller helheter blir till delar : En studie om olika läsinlärningsmetoder
AbstractThe present thesis examines reading acquisition. The aim of the study is to gain a deepened understanding of various methods used for reading acquisition, how teachers? are dealing with these methods and what aspects require special attention. The overall research question of the thesis is: How can one assess children?s future reading ability and identify a method that is appropriate to this ability? The overall aim leads to several more specifically addressed issues.In the theoretical part, different perspectives and theories about reading acquisition are presented along with different methods for how to work in order to facilitate reading.
Jämförelse av två mätmetoder för mindre gasvolym
Two different methods for measuring biogas production were used, gas meter and gasbags. The gas meters were electronic and counted each time a certain gasvolume passed through them. The gasbags collected the gas that hade passed through the gas meter until a manual measuring could be done. The two different methods gave the same result for a volume at three liters but for a volume around 0,2 liters they did not. Accuracy and precision for the gasbags was more exact than for the gas meters even if the method was difficult with a lot of different elements that could affect the result.
A comparison of transporters? paddle use when unloading pigs at slaughter
Today, pigs are moved on farm, between farms, between countries and to abattoirs. This movement of live pigs requires handling practices that are designed for the purpose. The objective of this study was to research the use of paddle in moving pigs, to investigate if there were different methods of paddle practice, explore the time efficiency of different kinds of paddle use and if there were any time variations in methods that varied in intensity of touch. This study was done on two Swedish abattoirs for a total of five weeks. A total of 22 transporters working at two different abattoirs where studied during unloading of pigs at the abattoirs.
En studie i användbarhet: En kritisk analys av användbarhetsstudier i biblioteks- och informationsvetenskap
Usability studies are not a central field of research in library and information science. Although literature in library and information science treats the importance of usable user interfaces quite extensively, the literature does not significantly treat potential problems in measuring usability. The aim of this master thesis is to investigate, through a critical analysis, the methods used when conducting usability studies in library and information science. The critical analysis is based on potential problems in measuring usability identified through a literature review from the field of studies Human-Computer Interaction, the concept of usabilitys original domain. The material which is to be analysed, is chosen from one library and information science journal Journal of the American Society for Information Science and Technology.
Beräkningsverktyg för plattformar till seriekompenseringsanläggningar
ABB is one of the world?s leading engineering companies in power and automation technologiesand their solutions improve performance while lowering environmental impacts for energycompanies and industries. ABB FACTS designs equipment and plants for series and phasecompensation.This thesis has been performed at ABB FACTS on the Mechanical Design (DM) department inVästerås, Sweden. The purpose of the thesis was to develop and design calculations andsimulation tools for ABB FACTS?s standard series capacitor platforms.