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1230 Uppsatser om Dynamical mass-balance modelling - Sida 3 av 82

Förbättrad muskelfunktion och balans hos äldre kvinnor efter sex veckors funktionell träning

Sweden is the country that has got the largest amount of elderly in the adult population in the world. The physical activity level decreases as we grow old and we experience muscle mass loss and a bone density reduction. This leads to an increased risk for falls and subsequent fractures. The purpose of this study was to investigate whether an exercise program could affect muscle function and balance ability to prevent falls. 17 women (age 64-79) participated in this study and was assigned to a control group (n=7) and an intervention group (n=10).

Barns lek och hälsa -ur ett föräldraperspektiv : "Det krävs balans för att få ett tryggt barn i en sund kropp"

Background: Children are different and they live under different conditions, but one they have in common - the desire to play. Children's play is important for their health and wellbeing. The aim: was to highlight the knowledge and issues that preschool children's parents have about young children's health and wellbeing, with a focus on physical activity and play, to promote health. A further aim was to highlight the obstacles and opportunities that parents experience regarding physical activity for young children. Material and Methods: The main study two focus group interviews were used with eight parents of children of preschool age.

Mean value modelling of a poppet valve EGR-system

Because of new emission and on board diagnostics legislations, heavy truck manufacturers are facing new challenges when it comes to improving the engines and the control software. Accurate and real time executable engine models are essential in this work. One successful way of lowering the NOx emissions is to use Exhaust Gas Recirculation (EGR). The objective of this thesis is to create a mean value model for Scania's next generation EGR system consisting of a poppet valve and a two stage cooler. The model will be used to extend an existing mean value engine model.

Studie samt reglering av luft- och massflöde för en barkpanna

This report treats two assignments that concerns the biofuel furnace at Billerud Skärblacka AB and how these assignments were solved. The assignments were: reducing the number of CO-spikes and tuning the overfire air control loop. To reduce the number of CO-spikes the possibility that skewness in mass distribution affects the number of CO-spikes were study. The skewnwss of mass distribution was controled and adjusted with two experiments. The conclusion that was made is that the skewness of mass distribution were not sufficient enough to affect the number of CO-spikes.

Sambandet mellan saldodifferenser och effektiva materialflöden : Fallstudie utförs på Atlas Copco?s logistikavdelning

Problems arise when the number of products in stock does not correspond with the number of products the information system says the company has in stock. (Sharda & Agrawal, 2012) In order to change that, major changes has to be made when it comes to making continuous improvements and to raise their standards regarding product availability and record inaccuracy (Wild, 2004).The purpose of this study is therefore designed to identify factors affecting the balance differences and what impact it has on the efficiency of material flow. The demarcation of the work is that Atlas Copco has begun working with Lean and it will not be investigated nor the relationship between balance differences and Lean. The study was based on answering the following questions: What influencing factors can be identified for balance differences? What factors are relevant to the efficiency of material flow? What kind of impact the balance differences has on these factors?In order to answer the purpose and issues, a theoretical framework has been developed with help of literature studies and an analytical model.

När stjärnor flyttar på sig : -En intermedial studie av läsprocessen som den relaterar till Codex, det digitala uppslagsverket i tv- och dataspelet Mass Effect

This study examines the in-game encyclopaedia Codex as it appears within the videogame Mass Effect. The purpose of this study is to analyse the Codex with emphasis on how the reading process is affected by the videogame medium. In this regard the study seeks to uncover what characterises the Codex as a fictional encyclopaedia, what it entails and how it interacts with the rest of the game. The theoretical basis of this study is derived from a combination of the writings of Wolfgang Iser concerning the process of reading, Jesper Juul's writings on the relationship between games and narratives, and the concept of intermediality as discussed by Hans Lund and Jørgen Bruhn.      This study is based on a close examination of the PC and Playstation 3 versions of the videogame Mass Effect, created by Bioware, with particular emphasis placed on the Codex. Mass Effect is a science fiction third-person shooter and RPG set in a future where mankind has begun interacting with aliens civilizations and colonising new planets.

Att balansera Management Control Systems - En fallstudie av ett litet svenskt IT-företag

This thesis studies the concept of balance in the management control systems (MCS) of a small Swedish company within the IT-sector. The aim is to evaluate the importance of balance and dynamics in MCS and investigate which factors affect them. The frameworks used are Simons (1994) four levers of control, and the five-factor model for balance and dynamics by Mundy (2010). The small IT company - the object of the case study - has grown extensively in the last years and needs to develop more formal MCS without losing efficiency and creativity in their fast-moving industry. The case study reveals that balancing MCS is important also in smaller companies with less formal MCS.

Ger det fria arbetet frihet : En studie om balans mellan arbete och privatliv

This qualitative study treats the construction and maintenance of balance between work and private life and how flexibility in the workplace is perceived. The study was conducted using semi-structured interviews and these have been conducted in five large companies around Gothenburg. The analysis and results are based on the phenomenographic method approach and the final results were four themes: Balance, Flexibility, Combining family and work and lifelong learning with related subcategories. The result shows that the construction and maintenance of balance between work and personal life is something that is tied to the indi-viduals and the current situation in life. Two of the most common strategies to maintain a dis-tinction proved to be planning as well as other activities, in order to move the focus away from the work.

?Dessa barn har kommit till Sverige ensamma och har oftast ingen som bryr sig om dem. Så vem ska bry sig om de spårlöst försvinner?? : En kvalitativ analys om massmedias gestaltning av de försvunna ensamkommande flyktingbarnen

1 252 unaccompanied refugee children have disappeared in Sweden since 2007. These children have never been found. Nearly one unaccompanied refuge child disappears per day. This happens during the time they are within the Swedish authorities' responsibility. This thesis uses the framing theory of the mass media regarding the missing unaccompanied refugee children and what the mass media considers to be the cause of their disappearance, the moral aspects of the articles and the solutions to the problem.

Flygplansavisningens miljöpåverkan vid svenska flygplatser

The aim of this thesis was to answer a number of questions about the environmental consequences of aircraft de-icing. A further aim was to suggest how the environmental consequences due to the release of de-icing fluids can be measured and reduced.The main impact of the aircraft de-icing on the environment is due to the large oxygen demand for the degradation of glycol based de-icing fluids which are released in the environment. The effect of the increase in oxygen demand depends on where the degradation occurs in the ecosystem. In a sensitive ecosystem, the large demand of oxygen could provide an anaerobic environment which would be harmful for many types of organisms.In order to reduce the negative effects of the applied de-icing fluid, there is some type of collection system at every regular airport in Sweden. The methods of collection can be divided into two general groups, hydrological isolation or vacuum sweeper trucks.

Balans i arbetet, balans i livet : En kvantitativ studie om arbetslivets inverkan på privatlivet

This study focuses on work related factors which have an effect on the balance between peoples work and private/social life. Commonly discussed in the daily debate is the so called ?livspusslet?, the time puzzle. The question is: How do you balance the demands from work, family and society? A lot of peoples health and family relations suffers from a stressful situation at work.It?s not hard to figure out that the possible factors which could have an effect on the balance between peoples work and private/social life are many.

Jobbgarantin för ungdomar : En studie kring deltagarnas upplevelse av jobbgarantin för ungdomar

Abstract"The Care of Work" is a study whose background comes from the problems surrounding work-life balance and equality that permeates social debates today. The problematic work-life-balance and gender equality are just as relevant today as they were 35 years ago. The aim of the study was to investigate whether or not men and women have a satisfactory work-life balance and if the organization they work for is doing something to make their life puzzles function. Last, but not least, the purpose is to see if gender equality is in the interest of the individual or the state.The study is based on work-life balance, gender equality and gender as the theoretical frames of reference. Eight respondents, four men and four women, from established IT companies were interviewed.

"Börja packa Chávez!"- En kritisk diskursanalys över tre svenska morgontidningars rapportering kring Venezuelas folkomröstning om Hugo Chávez'presidentskap 2004

The purpose of this thesis is to examine how the president of Venezuela, Hugo Chávez, is described in Swedish mass media. The research question of the paper is "How was president Hugo Chávez portrayed in Swedish newspapers in the 2004 Venezuelan referendum?". The answer of this question provides information about how the mass media form the image of current political events which is an important aspect of power. The applied method and theory in the study is the critical discourse analysis.

Brikettillverkning på gårdsnivå :

In my work I have chosen to examine the profitability for small scale production of hemp briquettes. My study also includes a review of which briquette technique that is the most common one among small scale producers. The reason that I have chosen this subject is because of the discussions about climate and energy that we face almost every day. I also think the subject is extra interesting in these days when the grain prizes are at a historic high level. In order for me to achieve a reliable report, a hemp and briquette producer has given me the actual data from his farm. In that way I have been able to make my calculations from a concrete perspective.

Modellbygge av mekaniksystem och riktmotorer i stridsvagn 122

This master thesis is one part of a project, called ?StabSim?, with the purpose to develop a simulation model for the align and stabilisation system in main battle tank 122. The origin of this project is that it should be possible to make control analysis without risking any hardware. Besides that it will be easy to change components in order to investigate the behaviour of the system. The report includes modelling of tower and weapon mechanics and also the modelling of the synchronous motors, which control these.

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