Sökresultat:
777 Uppsatser om Intermediate frequency - Sida 19 av 52
Mjölkningsfrekvensens påverkan på mjölkproteinets sammansättning och kvalitet :
In modern dairy production the milking frequency is increased in some herds due to introducing of automatic milking systems or the farmers decision to milk high producing dairy cows more than two times a day. With more frequent milkings the milk yield increases while the content of fat and protein decreases. However, how the composition of protein is influenced is not fully evaluated. The purpose of this study was therefore to see if a higher milking frequency had any impact on the milk production and especially on the protein composition.
This study was conducted as a half udder experiment.
Stamskador i gallringsbestånd
This study was conducted on a property with a thinning machine team. The purpose was to investigate in which machine, the harvester or the forwarder, that caused most damage to the trees in six different stands. Different factors, related to the damage frequency in the stands, were checked out. For example: basal area per hectare, thinning strength, tree diameter and the rate of production.
The harvester drivers were also interviewed about how, when and why stem damages occur and how to minimize them.
The study stated that 4.3 percent of the trees were damaged. Out of these 88 percent was caused by the harvester and the rest, 12 percent, by the forwarder..
Histiocytära sjukdomar hos Berner Sennenhund :
The histiocytic diseases are generally rare in dogs and not much is known about
the disease. The disease complex that includes both a reactive form and a tumour
form, is however common in certain breeds, among them the Bernese Mountain
Dog. As the literature is very limited on the subject of histiocytic diseases, my aim
with this thesis has been to gather current knowledge of these diseases. I have also
attempted to estimate the frequency of the diseases among the Swedish Bernese
Mountain Dogs and investigate if they appear to be more common among certain
families..
Varför Storbritannien? : Svenska uppslagsverk och det historiska förklaringsperspektivet (1907-1998)
Title: Why Great Britain? ? Swedish Encyclopaedias and the Explanatory Perspective of History, Essay in History AbstractIn my essay I describe how Swedish 20th century encyclopaedias interpret the coming about of the British Empire, the overall purpose being to establish a pattern of evolution in terms of historical understanding on the part of the encyclopaedic literature. Firstly, I have tried to determine whether the presentations at all constitute explanatory efforts. In those cases where they do, I have sought to ascertain whether the reasons put forward are to be understood as structural and stable, or as matters of less permanence. I have also tried to link these interpretations to significant ?constructions? of history ? i.
Lågoffsetkomparator
Detecting small signals with a comparator demands that the total voltage offset is lower than the actual signal. The total offset includes the voltage offset in the comparator and the voltage offset that is created by the offset currents that flows thru the load at the comparators input. The goal with this comparator that has been developed has been that it will have a total voltage offset at maximum 500 uV. The comparator does not need to be extremely fast or does not need to operate in a big frequency area. To have all the flexibility that is needed a full custom technique is used.
Ledarskapstilar i klassrummet : Utifrån lärarperspektiv
The purpose of this study was to see how teachers experience their own leadership style and how they did to get their leadership to work in the classroom. The purpose was also to understand the teachers? actions, what they think is best for the students? development and how they describe the leadership in the classroom. I interviewed six female teachers and they all have had many experiences since this is their profession. My research was based on Stensmo (2000).
Variationer i revisionsprocessen - påverkar externrevisorns individuella förutsättningar revisionen?
The purpose of this paper has been to examine the question whether accountants differ in their auditing depending on their individual characteristics. We have summarized our own theory based on previous research and our own ideas. To conduct this purpose we used a deductive method. Our findings from the study show that we cannot exclude the possibility that accountants vary in their auditing depending on their individual characteristics. The answering frequency to our survey was only 47 %, and this may have affected the outcome of our research.
Hur tron finner ankarfäste. Pastorers informationssökande i sin andliga tjänst
This Master?s thesis concerns the information behaviour of pastors in nonconformist churches (especially new evangelical and Baptist church communions) in Sweden in their spiritual service to the local parish. The thesis also looks into how the information flow functions in the pastors? context and why the information need appears as it does. The theory used in this study is contextual analysis based on Buckland?s, Weber?s and Patrick Wilson?s theories on authority and power structures.
Modell och analysverktyg för beräkningav frekvensförlopp
The power system modelled in this thesis work has been developed for simulationwhen e.g. the production in some part of the power system is changed. The powersystem has been modelled according to the swing mass of the system, the frequencydependency of the load and the turbine governor. The model determines the systemfrequency, the period of regulation and the power exchange between the differentsubsystems in the Nordic synchronized system.In this model the system frequency is assumed to be the same in all different parts ofthe power system and the voltage conditions in the power system are neglected. Forthat reason power swings does not occur between different subsystems in the powersystem, which usually occur as a result of the swinging connection between thetransmissions line.
Optimering av distorsionseffekt med hjälp av Fourieranalys
In music performers and music-making are oftenused different distortion effects to give the desiredcharacter on the individual sound sources andinstruments. These have different names (fuzz,distortion, overdrive) depending on the character. Tocarry out this work, an extensive literature study ofthe circuit diagrams of a large number of the classicdistortion circuits implemented. In this work, adistortion effect of the character fuzz was createdfrom several other existing effects. MeasurementsFFT, frequency response have been conducted tovalidate the desired results along the given problem.The finished effect was named Instant Carlos and aprototype was manufactured.
Malmmineralogisk undersökning av Pb-, Zn-, Cu- och Ag-förande kvartsgångar i Värmskogsområdet, mellersta Värmland
AbstractPolymetallic (Pb-Zn-Cu-Ag-Au-Sb-As-Bi-Cd-Te-Se-Ge?) quartz veins occur in an area from Eidsvoll in southeastern Norway to west of LakeVänern in southwestern Sweden. They most likely formed during the waning stage of the c. 1 Ga Sveconorwegian orogeny. In Värmskog parish, Värmland county, several mineralized quartz veins of different types are known.
Icke-farmakologiska åtgärder för att förebygga förstoppning hos äldre personer - En litteraturstudieNon-pharmalogical measures to prevent constipation for older people - A literature review
Bakgrund: Förstoppning är ett av de vanligaste symtomen från mag- och tarmkanalen och att drabbas av förstoppning kan vara en hemsk upplevelse. Tillståndet påverkar personen både fysiskt, mental, socialt och existentiellt, vilket leder till försämrad livskvalité. Syfte: Att beskriva vilka icke-farmakologiska åtgärder som finns för att förebygga förstoppning hos äldre personer över 65 år. Metod: Studien genomfördes som en allmän litteraturstudie där vetenskapliga artiklar söktes i databaser på Internet och manuellt i referenslistor. Åtta vetenskapliga artiklar inkluderades i studien och dessa analyserades och utformades till ett resultat.
Motiv, möjligheter och framgångsfaktorer med RFID på lastbärare : Införande på Brunskoggruppen AB
Gapet mellan större och mindre lokala aktörer på transportmarknaden ökar vilket leder till krav på kostnadseffektiva och differentierade verksamheter. Detta bidrar i allt högre grad till effektivisering och automatisering av verksamhetens processer. Ett problem för verksamheter i logistiska sammanhang kan vara att lastbärare försvinner i leveransflödet vilket kan vara både kostsamt och reducera kundnöjdheten. RFID, Radio Frequency Identification är en teknik som kan användas i logistikprocesser för att ge en ökad synlighet på både lager-och logistikaktiviteter i flödet från leverantör till kund. För att kunna driftsätta en sådan lösning och få tillgång till den tänkta nyttan bör de involverade aktörerna engageras i ett gemensamt system som kräver uppsättningen av en lämplig infrastruktur. Brunskoggruppen AB är ett mindre logistikföretag beläget i Ljungby som upplever ökade kostnader för förlorade lastbärare i leveransflödet och ett behov av effektivisering av informationsflödet gällande densamma.Syftet med denna studie var att genom litteraturstudier, intervjuer och inslag av aktionsforskning undersöka och ge ett exempel på hur Brunskoggruppen AB kan införa en automatiserad lösning för spårbarhet på lastbärare.
Implementering av Constant Fraction Detection vid avståndsmätning
This thesis is performed at Saab Bofors Dynamics in Karlskoga and investigates a technique for ranging with laser pulses. The investigated technique is called Constant Fraction Detection (CFD). Described briefly, the received laser pulse is split into two equal parts, where one part is delayed half the pulse width and inverted. This signal is added to the original pulse. The resulting curve has the shape of a laying S and the detection of the zero level is used to stop the time measurement.
Effekten av kvävegödsling på gasproduktionen vintertid i boreala sjöar
To investigate effects of nitrogen on in-lake CO2 and CH4 production during winter, three pair of lakes was subject for a fertilizing experiment in which one lake in each pair was fertilized with nitric acid (HNO3) directly into the water column in the summer of 2012. The lakes in each pair are assumed to be morphologically, hydrologically and biologically similar, that is, the non-fertilized lakes are considered references. The pairs do differ in one major way by being progressively less humic, going from around 25 mg/l to 10 mg/l DOC. Sampling and analysis was carried out at the end of the frozen period in 2013. Results show a significantly higher concentration of both CO2 (p<0,001) and CH4 (?=0,1, p=0,053) between impact and reference sites in the two less humic pairs.