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1973 Uppsatser om Required Minimum Warning Distance - Sida 5 av 132
Avståndsmätning med Hög Noggrannhet till Låg Kostnad
Active sensors are used a lot in the society and industry, for example to gain better control over processes or to get proximity sensing features in different products. Within industry there is great interest in developing safe automation products that can be controlled with high accuracy but still at a low cost.The goal of this project is to develop a prototype of a non-contact rangefinder that measures distance using infrared light. The sensor is to be used for various applications in industries with relatively high accuracy and be compact, but at a low cost. By implementing a rangefinder into a product, more accurate detections of an object?s presence can be done.In this project a new distance sensor, EPC600 from ESPROS, was used.
Behovet av blyhandskar som skydd mot sekundärstrålning vid röntgenundersökning av djur
X-rays are a potential risk for animal health care personnel. The present study will examine the risks for scattered radiation to the personnel, if no lead gloves are used when holding an animal during the x-ray examination. Furthermore, how the impact of the exposure values and body parts examined, affect the scattered dose to the hands of the holder. Also, the distance between the animal and the hand that holds it was evaluated to see the impact on scattered radiation exposure. Tested by a survey, to animal health care students, the frequency of the usage of lead gloves in Swedish animal hospitals was studied.
According to the results from the analysis, animal health care personnel don't need to use lead gloves every time they hold an animal or a cassette during x-ray examinations.
Rangordningens inverkan på beteendet hos nötkreatur (Bos taurus) och dess konsekvenser för djurtillsynen :
Extensively kept animals for meat production have the right to live in a good
environment. Cattle (Bos Taurus) as social animals live in small herds in the
wild. When holding animals extensively new problems have arisen regarding
human ? animal interactions. One welfare problem is to be able to come close
enough to the animals to investigate their health condition.
Movement patterns of snow leopard (Panthera uncia) around kills based on GPS location clusters
Research concerning movement patterns of wild animals has been advancing since GPS technology arrived. But studying the snow leopard (Panthera uncia) is still difficult because of the harsh territory it inhabits in Central Asia. This study took place in south Gobi, Mongolia, and aimed to estimate the time spent at kills and the maximum distance away from kills between visits. Snow leopards were monitored with GPS collars that took a location every five or seven hours. Potential kill sites were established by identifying clusters of GPS-locations in ArcGIS and visited in the field for confirmation.
Distansledarskapets spelregler - en fallstudie av utlokaliserade journalisters upplevelser av distansledarskap och arbetsmotivation
What is e-leadership and how can it be framed in a distance context? How can work motivation be understood as a correlated theme? In prior leadership research and theory it has been taken for granted that leadership occurs in a face-to-face environment, so how to study leadership in a remote context? According to recent research, e-leadership defines this leader-member relation in this new arena, and a central focus of this research has been on communication. Communication is a central theme in the remote setting because it is the only interaction arena which allows leadership to be seen and understood. By conducting a case study in a multi media organization with distance working journalists as focus group this essay aims to bring a deeper understanding of how e-leadership works and how it effects work motivation. The field of media organizations is interesting to study as distance work is not an unusual working environment for journalists, and research has indicated that work motivation needs for these highly specified creative workers are somewhat differentiated from other, for example industrial workers, which implies that motivation theories urges an update.
Buntning av grot med lastbilsmonterad utrustning :
During the transportation of logging residues (LR) the material´s low density is a problem that results in low use of pay-load capacity. Comminution or compression of LR are possible methods to increase pay-loads. In the present thesis studied a bundling machine which was mounted on a truck chassis, and the subsequent transport and crushing. The truck bundler created bundles that were larger and longer than other bundling equipment on the market. The objectives were to determine the total time consumption and its allocation over work element and machinery, to measure dry matter (DM) content of green and brown LR-bundles.
8263 kilometer: En studie i avståndets påverkan på styrsystem
The aim of this Master?s thesis is to study the effects that geographical distance have on the control systems in a scattered organization and how this, ultimately, affects the employees in terms of loyalty and motivation. In order to do this, a case study has been conducted on a multinational travel group and its local branches in Thailand. The study is based on a selected number of theories focusing mainly on control systems in multinational contexts as well as on theories regarding communication and autonomy. The conclusion of the study is that geographical distance has led to a rather large autonomy for the local branches and that the headquarter to a large extent rely more on formal control.
Does nuclear power plants affect house prices? : a hedonic price model of Forsmark nuclear power plant
Nuclear power plants existences have been well debated since the 70s (Swedish radiation safety authority, 2014). Accidents, risk and presence connected to nuclear power plants have been part of many studies around the world. Recent studies have shown a connection between prices of houses and the distance and presence of nuclear power plant in a surronding area of the house. This paper uses Hedonic price modelling to investigate the willingness to pay for an increased distance to the Swedish nuclear power plant, Forsmark. For the dependent variable selling price was used and the independent variables were number of rooms, living area, other area, lot size, selling year, building year and distance to Forsmark.
Portföljteorier en jämförelse
The purpose of this paper is to find out which portfolio theory one should use during a financial crisis. We will examine two different portfolio theorys, the Minimum Variance portfolio and the beta portfolio.We have chosen to study two different portfolios, and followed their development during the financial crisis with its start in 2008 and the IT bubble with its start in the middle of 2000.The data has been collected from OMX internet database making it quantitative study. The beta portfolio's objective is to follow the index and the Minumim Variance portfolio´s objective is to spread the risk by investing in stocks with low volatility. By following the two different portfolios, and compare the development to the index, we will be able to determine which theory is most suitable to use during a recession. The studyperiods we chose were both in a recession and it turned out that the most appropriate portfolio to use was the Minimum Variance portfolio because stock in this portfolio tends to be less sensitive to economic fluctuations..
Språkstöd i distanslaboratoriet på BTH
To study and laborate at distance, its necessary that the coursematerial is
accessible via internet.
Teaching at more languages than swedish bocomes more common,
why the information of courses needs to exist at several languages.
As teacher, you need a way to publish and edit material of a course. It also
has to be easy for the students to find the information. The distance
laboratory have developed an administrative websystem that handles programme,
courses and students, but misses the possibility for teachers to change content
at the webpages and publish new coursematerial on a way..
Social rädsla bland ungdomar
Social phobia is a fear which limits a person's capabilities in daily situations. The fear can be so strong that a person can distance themselves from all social situations, for example education, marriage, sports activities etc. The purpose of this study is to discover whether there are any correlations between social fear and choice of educational program, between social fear and sex, and between social fear and Internet use. Questionnaires were administered to 80 upper secondary pupils. Each questionnaire answer was assigned a certain score, which was then coded in SPSS, the highest scores corresponding to highest degrees of shyness.
PROKRASTINERING : gapet mellan avsikt och handling Studenter på högre utbildningar
The definition of procrastination can be described as a behavior with deliberate postponement of tasks or commitments despite expected negative consequences for the individual and his or her environment. This study examined how widespread this behavior is among students in higher education in Sweden. Using a web-based survey, data was collected for analysis. A statistical program, SPSS, was used for evaluation of the collected data. The purpose of this study was to examine whether there are differences in the degree of procrastination between students located on campus versus students who do their education at distance.
Medierepresentationen av världens länder : Strukturer i fyra svenska nyhetstidningar
This essay casts light on the quantitative aspect of the media representation of foreign news. The purpose of the essay is not only to describe the media representation of the countries of the world, but also to explain the representation out of structures that are mirrored by the mass media. Four hypotheses are stated that are operationalized in the research. These are treating four different factors that are believed to affect the representation, economy, geographical distance, cultural distance and the size of the population. A fifth hypothesis is stating that economy is the most influential of the factors.
Konstruktion av mutterdragare för stora moment
This degree project was conducted in collaboration with Gremo AB located in Ätran.The aim of the project was to develop a solution to secure quality and to help assemblingthe locknut holding the vertical hinge on the harvesters and foresters from Gremo.At this time the nut is assembled manually by the aid of an overhead crane. The nut istightened differently from time to time, and there was no specified torque to which it istightened. Another present problem was the locking washer which sometimes getsdamaged during assembly, when this happens the procedure has to be started over fromthe beginning. The current assembly procedure is very time consuming and lengthy forthe employees.Our task was to design a machine that could tighten the nut to a specified torque with amargin of error of ± 3%. The assembly procedure will be held simple and the timerequired at a minimum.The project started by developing several principle solutions, the one solution that bestmatched our specifications were developed to a primary solution.Today we have started manufacturing and assembling our prototype.
Tidsstudie av containerhuggbil
The fork lifter chipper truck is a concept which has been developed for harvest and transport of bio fuel. The system consists of one fork lifter chipper truck and 1, 2 or 3 transport lorries, usually two, which serves the fork lifter chipper truck. The system is driven by the fork lifter chipper truck that produces chipped material into a container on the truck. When the container has been filled the truck drives to the landing site where it?s offloaded.