This report discusses a method to detect divers in harbour environments usingpassive acoustic detection. The goal was to achieve as high detection as possiblewithout having too high false alarm rate. A short execution time was also desirable.By using the characteristic of an inhalation a band-pass filter was applied to the signalto improve the signal to noise ratio. After the filtering an energy estimation of thesignal was made. This energy estimation was later used in a frequency analysis, whichcould tell us if there were enough energy in the frequencies that correspond to adivers breathing frequency.

People of the modern world consume more than they ever used to do. Because of the close correlation between consumption and the amount of waste, the waste volume is also expected to increase. The purpose of this study is to examine if some measures in the recycling process from Sweden could be implemented in Indonesia. In fact, Indonesia is one of the countries in which the waste management system is struggling. Tetra Pak, one of the world leading producer of food packaging, is studied in this report.

Kina har haft en exceptionell utveckling tiden efter den ekonomiska reformen 1979 då den kinesiska regeringen började öppna upp den interna marknaden för internationell konkurrens. Resultatet har visats sig i växande valutareserv och bytesbalans och framförallt i tilltagande BNP tillväxt. Under de senaste åren har det framkommit hård kritik från omvärlden (läs USA och EU) där budskapet har varit att den kinesiska regeringen skall revalvera sin valuta och därmed närma sin jämviktsväxelkurs. Den här uppsatsen undersökte vad den nominella växelkursen skulle ha varit i Kina när budgetrestriktionen är uppfylld. Detta sker när Kina möter sitt initiala överskott (underskott) med ett nuvärdesberäknat underskott (överskott).

This thesis has been done at the powder department (GH) at AB Sandvik Coromant in Gimo. With a rheometer measurements has been made on raw materials and powder blends. The focus of this report has been to find correlations between raw material powders and press data, comparisons have also been made between raw materials and powder blends.The rheometer can show information of how a powder act in flow conditions, together with air and with pressure. Analyses has been done comparing the rheometer data with press parameters (for example: rejected orders, weight variations and the compaction pressure) with the goal to find correlations between the powders flow properties and the powders compaction in production.The measurements and analyses have been showing that the powder flow properties depends on the powders composition and that properties like flow rate, aeration and permeability varies between powder blends and batches of the same powder sort. It seems to exist a correlation between the pressure force and the flow rate of a raw material.

The need for roundwood transport capacity vary throughout the year. The need during a period is influenced mainly by the volume transported the period, the number of days during which transport can be carried out, seasonal variations in road conditions and the weight of the roundwood, and the origin of the wood (private forest owners/ forest companies). The need for transport capacity generally increase during the winter and in spring, after thawing. Lack of logging trucks combined with a lack of drivers for these trucks make it hard to hire extra help during periods of increased transport capacity needs. It is also very expensive to keep logging trucks for use only during these periods. In this thesis, two new concepts based on the partial transport by truck tractors have been examined, to find out the possibility for increased performance and flexibility.

The aim of the study was to investigate if methane emission in a constructed wetland changed in a diurnal pattern correlating to temperature, humidity or light conditions. The gas measurements were carried out with a static chamber technique. The wetland (in Nykvarn outside of Linköping, Sweden) takes care of wastewater to reduce the nitrogen loads. Measurements were carried out at three different occasions in the summer of 1998 on two sites in the wetland. One site was close to the inflow, inhabited by Lemnaceae, and another site was located further downstream inhabited by the emergent macrophyte Typha latifolia.

This report discusses a method to detect divers in harbour environments usingpassive acoustic detection. The goal was to achieve as high detection as possiblewithout having too high false alarm rate. A short execution time was also desirable.By using the characteristic of an inhalation a band-pass filter was applied to the signalto improve the signal to noise ratio. After the filtering an energy estimation of thesignal was made. This energy estimation was later used in a frequency analysis, whichcould tell us if there were enough energy in the frequencies that correspond to adivers breathing frequency.

The purpose of the study is to investigate the communication between exchange students and their host student trough Facebook. The study shows the importance of social cues and self-disclosure to maintain a relationship. The students? everyday use of Facebook helps them to remain connected to their social life locally and create new friendships. Cultural differences were shown in the way the students formed their expressions trough their messages to each other.

In this study, pollen contamination (measured by the number of seeds pollinated by pollen not belonging to any of the clones on the seed orchard) is compared between open pollination and isolated pollination environments in a Scots pine (Pinus sylvestris) seed orchard called Västerhus, located outside Önsköldsvik. In this seed orchard a tent experiment is taking place. Skogforsk has built six large tents covering 12-14 trees with each tent. Fertilization patterns were compared between one tree in a tent with a supplementation of pollen from five clones not represented in the tent and another tree of the same clone subject to open pollination outside the tents. By using DNA markers the paternity was determined for 48 seeds from each tree.

In this study, pollen contamination (measured by the number of seeds pollinated by pollen not belonging to any of the clones on the seed orchard) is compared between open pollination and isolated pollination environments in a Scots pine (Pinus sylvestris) seed orchard called Västerhus, located outside Önsköldsvik. In this seed orchard a tent experiment is taking place. Skogforsk has built six large tents covering 12-14 trees with each tent. Fertilization patterns were compared between one tree in a tent with a supplementation of pollen from five clones not represented in the tent and another tree of the same clone subject to open pollination outside the tents. By using DNA markers the paternity was determined for 48 seeds from each tree.

BIM has been a trend in recent years when it comes to design and construction ofnew buildings. However, there has been less talk about what happens to BIM modelsafter the construction phase.This issue has been raised at the Forsmark construction documentation department.This thesis aims to look at how the information in a BIM model can be transferred tofacility management and GIS systems and thus add value, even after the constructionphase.Questions raises how such an exchange might look like and whether it is reliable.How should a claim be brought to planners for such an exchange to work.This thesis tested some of the most common methods for this kind of exchange ofinformation from BIM models to facility management and GIS. It was formats like IFC,Fi2xml and a database connectivity that was analyzed by a computer simulation of amodel provided by Forsmark. The model consisted of an existing office building atForsmark, modeled in Autodesk Revit.The results indicate that the formats tested require a precise plotting of the models.The loss of information that came to light in the simulation could be attributed tofailure modeling in Revit. Even such things as naming of areas must be consistent.

The purpose of this essay was to understand why the pupils of upper secondary school are unable to pass the Mathematics A level. As method, I chose interviews, since the personal and various experiences of the informants are very important for the validity of this essay.This study has shown that the students lack motivation and consider Matematics boring. They haven?t been able to fathom the connection between the subject and how it van be used in everyday life. If the pupils? are to pass their Mathematics A level, they need time, further recourses and teachers who are apt and attentive pedagogues.Additionally, the teachers need more knowledge when it comes to methodology and didactic styles..

Studie syftar på att få kunskap om de faktorer som är av betydelse för gymnasieelever i ett utbytessammanhang..

Syfte: Uppsatsen syfte är att klargöra och analysera reporäntans ränteförändringars påverkan på aktiekurserna för samtliga svenska banker i large cap på Stockholmsbörsen.Metod: Kvantitativa händelsestudier har gjorts med deduktiv forskningsansats på fyra företag, samtliga noterade på Stockholmsbörsen. Den onormala avkastningen för de undersökta aktiekurserna har beräknats en dag före till en dag efter samtliga realiseringar av reporänteförändringar som skett mellan åren 2004 till 2015. Teori: Den teoretiska referensramen för studien består av den effektiva marknadshypotesen och överreaktionshypotesen.Slutsatser: Studien har påvisat att det råder signifikant samband mellan ränteförändringar och de studerade aktiernas avkastning vid realisering av ränteförändringarna..

I denna uppsats undersöker jag hur pass effektiv jag kan vara i mitt musikskapande och hur jag kan göra för att bli ännu mer effektiv. Under nästan två månader skrev jag tre låtar i veckan som resulterade i totalt 16 stycken låtar. Av dess valde jag ut fem stycken som jag spelade in och producerade. Genom att ge mig själv tydliga tidsgränser och använda effektiva verktyg och metoder, har jag lyckats skriva mer musik än vad jag någonsin tidigare har gjort. Resultatet visar att med vilja, disciplin och rätt verktyg så kan jag producera betydligt mer material än vad jag tidigare hade vågat tro..