Uppsatser om frequency

699 uppsatser · sida 25 av 47

Konstruktion av current conveyors via makromodellering

Examensarbete, grundnivå · Linköpings universitet

… The current conveyor also has significantly higher voltage gain over a broader frequency range. To simplify the construction of analogue circuits and increase the construction efficiency it is desirable to use a top-down methodology. This means that the whole system is …

Arbetsmiljö i stora mjölkkobesättningar :

Examensarbete · SLU

… in their work environment. Employed women was the group who had the highest frequency of musculoskeletal disorder, felt most discomfort from the working environment and showed higher negative result in the psychosocial work environment then the employed men and the dairy …

Effektivare traktordemonstrationer

femtio lantbruksföretag svarar

Examensarbete · SLU

… companies were interviewed over the telephone and by doing it this way the frequency of answer could be kept at a high level. Another advantage was that I could discuss the answer and a clear picture of the answer. With the help of this inquiry it was possible to produce a …

Val av tidpunkt för markberedning vid naturlig föryngring under skärm av Pinus sylvestris i Svealand

Timing of scarification when using natural regeneration in seed tree stands of Pinus sylvestris in Central Sweden

Examensarbete · SLU

… was 8-10 percentage units higher in the autumn plots than in spring plots. The frequency of plots without seedlings (0-plots) were 38 and 44 %, respectively. There was no significant difference in mortality between the plot-types. In total 6 seedlings died during the first …

Lammproduktion på nio ekologiska gårdar i västra Sverige :

Examensarbete · SLU

… that were used to reduce the risks for parasite infections were studied. The frequency of parasites where registered with assistance from the Swedish Animal Health Association. Several farms let the sheep graze together with cattle or horses and/or rotate sheep and cattle for …

Röjningsbenägenheten bland privata skogsägare

en enkätundersökning bland medlemmar i SÖDRA

Examensarbete · SLU

… total, 480 surveys were sent out equally among the two categories. The answer frequency was 69 percent. It is difficult to find any specific groups of landowner in the material with similar thoughts and actions concerning cleaning. In one specific question it’s impossible to …

Skötselmetoder för bestånd med produktions- och naturvårdsmål :

Examensarbete · SLU

… with combined goals is used. Which means, were in the terrain, with which frequency and in which type of forest PF-classification is used. ” Comparing differences and similarities of theoretical and practical used models. The study was done partly as a literature study and …

Modelering av Wideband

Code Division Multiple Access

Examensarbete, grundnivå · Linköpings universitet

… to the fullest. CDMA is a technology that allows multiple accesses on the same frequency and time thus making it very bandwidth efficient. The CDMA technology was first introduced in the second generation’s cellular systems but has since then been improved and is reused in …

Undersökning av modulationsscheman för existerande bredbandsteknologier

Examensarbete, grundnivå · Linköpings universitet

… channel and how sensitive the technique is for interference in a part of the frequency band. To compare the different modulation techniques, simulations of the modulations were made. The simulations were made with MatLab and Simulink. Unfortunately Simulink only supports one- …