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1516 Uppsatser om Noise solution - Sida 34 av 102
Reglerstrategi för fria ventiler : ? Utveckling av en fyrtakts förbränningsmodell för att prediktera optimala ventilinställningar
As emission legislations across the world continuously pushes engine development forward,engineers constantly need to come up with and implement fuel saving technologies. During thelast decade, variable cam phasing has become a popular solution to increase gas exchangeefficiency. This configuration is typically mechanically constrained by camshaft limitations, anda solution to circumvent this problem would be to use a different valve actuation principle.One example of this is to use pressurized air controlled by electrical solenoids. Such a systemhas been developed byCargine Engineering and this provides the starting point for this work. Tobe able to operate the valvetrain on an actual engine, a control system is needed.
Miljöutredning vid FORIA AB : En nulägesanalys av miljöaspekter från transporter
An environmental review has been carried out at FORIA AB, a transportation- and machine service company, to analyze the company?s environmental aspects from the transportation segment. This report describes the essential background and the methods of identifying and evaluate the environmental aspects. It also describes how the work with the environmental aspects often vary between different actors. The design of the ISO 14001 is intentionally broad in order to apply on all sorts of activities and organizations.
Framtida inhemska proteinfodermedel i den ekologiska fjädefäproduktionen :
Organic layers and broilers will according to (EEG) no 2092/91 be fed 100 % organic feeds in year 2012, which is expected to present problems associated with the specific protein requirements of poultry. This document aims at describing the feedstuffs that possibly may constitute a part of the solution to these problems. Peas, field beans, naked oats, canola, hempseed and sunflower come out as interesting feedstuffs. Biproducts from the milling and dairy industry together with marine protein supplements may be brought to the fore, provided that the demand for organic products will rise further..
Kvinnligt dominerade yrken inom äldreomsorgen - arbetsledarnas upplevelser av sitt ledarskap inom kommunala äldreomsorgen
The purpose of this research was to find how supervisors in the care of elderly experience their leadership in everyday work and their view on the factors which are important for their leadership. In the research a qualitative method has been used to do interviews with six supervisors and to do analysis of material. By the help of literature studies, I explained leadership. Result of the study indicate that leadership concerned supervisor should prepared to do the right thing in every situation and to find best solution of different situation that come up on the work. The way to do all this is important to create leadership.
Energi och klimatanalys O-huset på Campus i Halmstad
AbstractThe indoor environment affects the human performance. Noise pollution, poor lightning and coloring are some of the factors that affect our work performance. The human is also affected by the air change and temperature, these factors are in most buildings possible to adjust and through this make economic savings. To find out about the indoor environment in the O-building a questionnaire was handed out, measurements/surveys and an interview was also made. 108 questionnaires where handed out to employees and students.
"SJ AB har kommenterat ditt inlägg" : En kvantitativ och kvalitativ studie om SJ AB:s kommunikation i sociala medier
Title: ?SJ AB har kommenterat ditt inlägg?: En kvantiativ och kvalitativ studie om SJ AB:s kommunikation i sociala medierWriters: Fanny Fellman and Moa GrönroosClass, semester, year: Bachelor thesis, 15 HP, winter semester 2014Number of words in the thesis: 13 566Problem definition and purpose: Our purpose is to investigate how SJ communicate in social media in crisis. SJ AB is a Swedish train company with traffic across Sweden who may be affected by a variety of crises. Social media use has today grown and now uses just not the Internet for pleasure, but also to ask questions and get feedback. Social media leads us into a new communication scenery, which also applies to organizations to be present.
Utvärdering av ett värmepumpsystems prestanda till en HWC-tvättmaskin : Med fokus på fläktvarvtal och köldmedieflöde
This report was performed in order to evaluate a new technological measure and focuses generally on a heat pump system to a HWC-washing machine. The client is Asko Appliances AB, a company well known for its environmentally friendly products. The goal of this study was to improve the energy efficiency of a washing machine by combining a heat pump device to the heater of the wash water, in order to reduce the energy consumed for heating the water. Besides reducing the energy consumption in heating the water, the washing machine was required to meet low noise and short operating time specifications. For that purpose, nine trials in three test series have been carried out.
Ett kärleksbrev till hantverket
Where is technology heading? And how will our behaviors towards these new innovations look? This project questions the direction of ?beyond smart? products, through scenarios within our everyday life. The work is both critical and speculative. Speculative in the sense that it is speculating in how a future scenario with ?beyond smart? products would look like.
Bilden som kommunikationsverktyg
Transportation of pigs might be a welfare problem. Stress during and after transportation can negatively affect the meat quality or cause carcass damages, which leads to major economic losses every year. The transportation chain can be divided into several stages; loading, transport and unloading. This literature review focuses on unloading of pigs from a transport. When arriving at an abattoir pigs can be fatigued and need to be as smoothly unloaded as possible.
Ett mät- och reglersystem för temperaturkompensering
An automatic control system for calibration of pressure indicators has been constructed. This control system can be used as a complement to the calibration system located at AerotechTelub, division MainPartner, in Linköping. The calibration system used today contains some not wanted pressure changes, which is compensated by hand today. The new system presented in this report automates the calibrating process and simplifies the calibration. Suitable hardware as motor, controls card and so on have been found and software in the form of Visual Basic program has been developed.
Aktivt balanserad cykel
To conclude this year?s introductory course in Mechatronics the students, in groups of 6,constructed a prototype based on the technical requirements established by the course teachers.This year they consisted of the following: two wheels only, active balancing, remote controlledand able to stop when crossing a pre-determined marker on the ground. The project lasted for 7weeks and the result is a working prototype and this report.The report reviews the chosen solution, subsystems and the finished prototype as well assuggestions for improvements, discussion and analysis.The prototype constructed embodied most of the group?s earlier individual technical specialtiesand consists of the following: a flywheel for balancing, ultrasound for angle measurement, areflective photomicrosensor to detect the marker and Bluetooth for the hand control..
Factors influencing pig behaviour during unloading from a transport
Transportation of pigs might be a welfare problem. Stress during and after transportation can negatively affect the meat quality or cause carcass damages, which leads to major economic losses every year. The transportation chain can be divided into several stages; loading, transport and unloading. This literature review focuses on unloading of pigs from a transport. When arriving at an abattoir pigs can be fatigued and need to be as smoothly unloaded as possible.
Dagens Nyheter 3.0 : En kvalitativ jämförelsestudie av dagstidningens form i tryckt format respektive applikationsformat
A daily newspaper?s main purpose is to inform its readers without creating noise. Theimportance of the visual presentation is therefore of weight for an effectivecommunication process. This study informs about the importance of typography inthe visual decoding process. The study includes the Swedish newspaper DagensNyheter?s transition from printed media to digital media adapted to an Ipad.
Elevers inställning till matematik : - en jämförande studie av elevers uppfattning av matematikämnet och matematikundervisningen
Based on earlier experiences of mathematics and mathematical learning, both as a student and as a teacher, I became more and more interested in how well the publicly accepted opinions about mathematics as an uninteresting, difficult and ?geeky? subject corresponded to reality. What do Swedish pupils really think about mathematics and is it possible to identify any differences in their attitudes based on the pupils? age?From this point of view the following questions were formulated:·What are pupils? attitudes towards mathematics in grades 3, 6 and 9 and how do they conceive their learning conditions?·Is it possible to detect any differences in the attitudes and preferences depending on the pupils? age?The result of this study compares well with previous studies done in this and overlapping fields and indicates that:·Younger pupils tend to have a better liking of mathematics but with increasing age that interest fades out.·Most pupils, without regard to age, consider mathematics to be one of the most important subjects, despite the fact that many pupils also find mathematics difficult and boring.·For pupils of all ages, the teacher is the most important factor in the learning process. Older students have more specific demands on the teacher for knowledge and pedagogical skills.·A high noise level, talking and disturbances in the classroom are the most bothering elements when it comes to learning mathematics.
Oharmoniserad familjerätt i EU : Problematik och lämpliga förändringar ur medborgarnas perspektiv
The EU guarantees the free movement of persons. The citizens of the EU Member States have the right to move freely without barriers within the EU borders and this result in an integration of the peoples in Europe. The integration result in several international family relationships. It is not unusual in the present situation that families have international relations. For example, spouses in a married couple may have different nationality.