This report is a thesis work for a B.Sc. in Forestry exam at the School for Forest Engineers, SLU. The work was an assignment from Södra Skogsägarna and the aim of the work was to investigate the economical and biological output after mechanical planting with Eco-Planter compared with traditional manual planting. Eco-Planter is a tool for mechanized planting, fixed at the end of the boom on a conventional harvester. The study confirms that manual planting is less expensive under normal conditions. However, the differences between mechanized and manual planting are not that big and with technical development and/or increased labor costs together with an improved work organization the system with Eco-Planter could be competitive. The biological output, e.g. planting result and survival rate, seems to be quite good.

Modern sawmills are using the raw-material and the production-capacity more efficiently today, due to rising raw-material prices and higher production costs. Log sweepness has a negative effect on the sawn yield, for sawmills with straight-sawing. It is desirable that these logs could be sorted based on more criteria, if it increases value-yield and consequently the utilization of raw-material. Bow-heights over 1 cm have a negative effect on sawn yield, since the surface of the mantle cuts down in the sawn pattern. Some of these small bow-heights reduce the logs yield of value which affects the production planning negatively. Nearly half of all the Swedish logs have a bow-height over 1 cm.

Fleets have the ability to affect an adversary?s use of the seas for transportation. Nations have in numerous occasions exercised this power in order to ravage their opponent?s trade in times of conflict with the purpose of diminishing their military might. Great naval thinkers like Mahan and Corbett have described this use of seapower during conflicts in great depth but theories regarding the use of seapower to affect a nation?s peacetime economy in order to achieve limited political goals is lacking.

Phosphorus is the single most potent contributor to eutrophication of freshwater and has also been shown to contribute to the toxic algae blooms in the Baltic sea. The dynamics and paths of losses of phosphorus from arable lands are not fully understood. It is known that phosphorus can be lost directly from plant material to water. In studies where plant material has been subjected to several freeze-thaw cycles, large amounts of phosphorus have been lost. Most studies have been conducted under field conditions, with many factors effecting the measured losses of phosphorus, such as weather and type of soil. This study was performed in a controlled environment without the presence of soil. Instead of soil, small glass beads were mixed with the plant materials in vessels, to make possible homogeneous leaching with water through the mixture of glass beads and plant materials. In this study, clover, ryegrass and dry straw were cut to pieces, approximately 2 cm long.

Efter Kuwaitkriget 1991 har Kina påbörjat att modernisera sin försvarsmakt därinformationsteknologin fått en ökad betydelse. Informationsteknologin har medfört ett ökatkinesiskt intresse för informationsoperationer som ett sätt att angripa en motståndares system.Syftet med denna uppsats är att lägga en grund för fördjupad kunskap kring Kinas syn på ochförmåga till informationsoperationer och informationskrigföring, samt att inom dessaområden speciellt belysa CNO. Detta för att få en insikt i Kinas militära upprustning.Metoden som används för att analysera detta är att genom textanalys jämföra kinesisk ochamerikansk krigföringsförmåga inom informationsoperationer i allmänhet och CNO isynnerhet. Teoriansatsen för jämförelsen bygger på den svenska ?Pelarmodellen? somanalysverktyg för krigföringsförmågan.Resultatet visar på att det finns likheter mellan USA och Kina, men att det också finnsavgörande skillnader.

High-precision cutting in metal is very complicated, a lot of parameters affect the result: what geometries to be manufactured, surface roughness and tolerances to be achieved, batch size etcetera. When pull-broaching internal parts this might be even more important, than in any other cutting operation. Everything is machined in one single stroke and the general technology is built in to the tool, therefore big investments must be made to change the process. Milling for an example: one piece at a time is machined away, and a lot of parameters can be changed easily.It is very high pressure on the cutting-edge when the broach is cutting. To achieve the specified product and to avoid unnecessary toolwear it is essential to use the right cuttingfluid and the right cuttingspeed for an example.

I och med det svenska bidraget till NATO missionen i Afghanistan samt den nyupprättade bergsplutonen på Arméns JägarBataljon i Arvidsjaur så har frågor kring taktik i bergsterräng även blivit aktuellt för Sverige. Då svenska utbildningarna och doktriner i huvudsak saknar problematiseringen kring att strida eller verka i bergsterräng så kan man där av ställa sig frågan hur ska vi få kunskap om detta? Detta arbete syftar därför till att jämföra den av USA använda taktiken i Afghanistans bergsterräng och den Sovjet har använt sig av. Frågan som arbetet försöker besvara är dels vad skillnaden har varit mellan taktiken hos stormakterna samt vad som varit den största framgångsfaktorn och begränsningen i respektive lands konflikt. Arbetet bygger på ett underlag främst från litteratur samt artiklar om operationer genomförda i Afghanistan.Arbetets resultat kan sammanfattas med att de faktorer som mest har påverkat dessa länders lösande av uppgift har varit hur ledarskapet har varit inom deras förband, och då främst hur i vilken utsträckning dessa har använt sig av uppdragstaktik.

Examensarbetets mål är att rengöra en diamantkomposit med en ytrengöringsmetod. Metoden skulle vara mera effektiv än den manuella sandblästring som används idag för att ytrengöra detaljen.Detaljen är liten och har ett vitalt spår som ska rengöras. Detta ställer höga krav på effektiva metoder. De metoder som tas upp teoretiskt i examensarbetet är bland annat blästring, trumling och laserrengöring. Ett urval av metoderna testades.

During the 1994 Italian elections many things were new for the voters. A new election system, new parties emerging where old traditional ones were dying out because of long ongoing corruption scandals that were coming up to the surface. In all this one man, Silvio Berlusconi, a famous Italian businessman, stepped in and with his two allied parties Lega Nord and Alleanza Nazionale he swept away the nation in a never before seen election campaign. Many things have been said about the motifs and the way he prosecuted the election campaign for the Forza Italia. But what I try to see for this thesis is the awereness in the Italian print media from this particular period - how and if the debate about an in just electoral campaign existed in the country from the date Silvio Berlusconi entered ?the playing field? as he called it and up to the days of election..

Begreppet Counterinsurgency har fått stor uppmärksamhet, speciellt efter NATOs operationer i Afghanistan och Irak. Sedan den svenska Försvarsmakten ingått som medlem i NATO- samarbetet PFP (Partnership for Peace) är även Sverige sedan en tid tillbaka involverade i konflikten i Afghanistan. Mycket av det doktrinära arbetet i länder, involverade i dessa konflikter, har varit inriktat mot irreguljära konflikter och Counterinsurgency-operationer. Stora mängder forskning görs inom ämnet bland annat av den franska COIN-teoretikern David Galula. Galula utkom 1964 med sin bok Counterinsurgency Warfare: Theory and Practice, och är internationellt erkänd som ett av de stora namnen inom COIN-teorin.Den sovjetiska invasionen av Afghanistan är en av modern tids största militära operationer.

This study compares the sample variance of the mean in a simple random sample (SRS) and a systematic sample from a surface. The study also compares the prediction error variance in a SRS and systematic sample from a random field. Recommendations are presented on which method to use in the clearance and exemption process in the nuclear industry. The results indicate that quadratic systematic sampling outperformed SRS in most instances and proved to be especially efficient in the presence of a long-ranged covariance function and high sampling intensity (i.e. short distances between observations).

During an investigation of animal welfare in animal production, the focus has for a long time been focused on the absence of stress, suffering and injuries, and positive emotions have not been prioritized. However, in recent years that has been drastically changed. The public interest have increased for buying animal products from animals that have had a decent life, which have led to that play, exploratory behavior and other positive behaviours has come to play a significant role in welfare assessment. The welfare of cattle is difficult to assess since there is currently no ancestors to study, it is thus difficult to determine which behaviors can be regarded as natural and thus positively related, acordingly the welfare of cattle have been forgotten and research on positive emotions of cattle have not been prioritized. The aim of this study was to observe which behavior growing cattle performe, and if there was any differences of which kind of behavior that was observed, if the cattle is keept on slatted floor or on a deep straw bedding. Furthermore, antoher purpose was to investigate if the observed behaviours indicate a positive, negative or natural welfare, and if it is possible to use the observed behaviours in a welfare assessment.

Att mäta och värdera motståndarens och sin egen krigföringsförmåga är angeläget i alla typer av militära konflikter. Svensk doktrin presenterar pelarmodellen som ett verktyg för detta. Med tanke på att den svenska försvarsmakten genomgått stora förändringar sedan pelarmodellen först introducerades i de svenska doktrinerna är det möjligt att den inte fyller sin funktion i de typer av militära konflikter som Sverige nu deltar i. I denna uppsats genomförs en teoriprövande studie av modellen i syfte att undersöka om den fortfarande är tillämpbar i sin befintliga form. Modellen prövas mot teorier av David Galula och John Warden vilka beskriver två typer av militära operationer som den svenska försvarsmakten deltar eller nyligen har deltagit i.Undersökningen visar att de faktorer som ingår i pelarmodellen också förekommer i Galulas och Wardens teorier samt att pelarmodellen fortfarande är tillämpbar i sin befintliga form.

Chile and Santiago are struggling with heavy environmental problems as a consequence of urbanisation and industrialisation. In the Santiago region the air is seriously contaminated and most of the rivers are classified as heavily polluted.The aim of this thesis is to survey the industrial fluid waste situation in the Santiago region and to make suggestions on technological improvements or process changes. The purpose is also to study five different enterprises more closely and to give more detailed suggestions for improvement. Another purpose is to summarize relevant Chilean legislation.Information, provided by the supervisory authority, about the release of industrial wastewater to rivers has been analysed. Deep interviews have been made with authorities and consultants.

The purpose of this study has been to look how pedagogic process interacts in horse riding lessons. In order to research this problem I have used an ethnographic approach and during a week I observed ten riding lessons in two separate Riding house in the south of Sweden. In my theoretical frame I have used Michel Foucault ?Discipline and punish? as a toll to make clear how dominance and submission is present and active in the horse riding education. The conclusion shows how dominant power rules by its presence and creates submission, stability and feeling of security. The discipline is used to create a feeling that will bring the riders to new experience and develop their talent.