Search results

Filter

Filetype

Your search for "*" yielded 533736 hits

Experiencing Archaeology in the Dream Society

The benefits of archaeology are seldom discussed in relation to the evident fascination of many people with the subjects of archaeology and the past. This current popularity of a certain way of perceiving archaeology and the past can be seen as a part of larger trends associated with the Experience or Dream Society as described by scholars such as Gerhard Schulze and Rolf Jensen. In this paper, I

OFDM Time and Frequency Synchronization by Spread Spectrum Pilot Technique

Correct time and frequency synchronization is important for the performance of orthogonal frequency division multiplex (OFDM) systems. We evaluate a system where a pseudonoise sequence (PN-sequence) is used for estimation of these synchronization parameters. The PN-sequence is superimposed on the OFDM signal. The system is evaluated by means of the variance of the frequency estimation error and th

TrueTime: Simulation of Control Loops Under Shared Computer Resources

The paper presents TrueTime, aMatlab/Simulink-based simulator for real-time controlsystems. TrueTime makes it possible to simulate the temporalbehavior of multi-tasking real-time kernels containing controllertasks and to study the effects of CPU and network scheduling on controlperformance. The simulated real-time kernel is event-driven and canhandle external interrupts as well as fine-grained det

Investigation of a Premixed Gas Turbine Combustor Central Body Burner Using OH Planar Laser Induced Fluorescence at Elevated Pressures

Experiments were performed on the central body rich-pilotlean (RPL) burner of a Siemens Industrial Turbomachinary 4th generation DLE combustor to observe the combustion changes that may occur when using fuels other than natural gas. Measurements were taken of temperatures at multiple points along the RPL body while hydroxyl (OH) radical distribution extending from the dump plane of the burner was

Fragments of life and death : the biography of grinding and polishing stones found in long barrows at the Almhov burial site

The burial and gathering site Almhov was discovered as a result of large-scale archaeological excavations in southern Sweden revealing the remains of five long barrows, two dolmens and a large number of pits, rich in finds. Given the multitude of activities performed at the site including, for example, monument-building, pit-digging, burying, feasting and axe-manufacturing, the site can serve as a

Characterization and Use of a Multiplex PCR-based System: Random amplified Polymorphic DNA

Random amplified polymorhic DNA (RAPD) is a PCR-based marker system that makes use of universal sets of short oligonucleotides that amplify random DNA fragments under low-stringency conditions. The RAPD marker system has found widespread use and possesses a number of very positive features, being a multiplex and universal system. The present studies characterize and evaluate the properties of the

Har gymnasiebetygen någon inverkan på studieresultaten vid LTH? En analys av studieresultaten under det första läsåret för den första årskullen i de nya 5-åriga civilingenjörsutbildningarna

Huvudsyftet med denna rapport är att söka samband mellan studieresultaten under det första läsåret vid de nya femåriga civilingenjörsprogrammen vid LTH och gymnasiebetygen – både det totala samt det i matematik. Sådana samband mellan gymnasiebetyg och resultat på första gemensamma matematiktentamen är tydliga – mer så för matematikbetygen från gymnasiet eftersom fler betyg i de lägre kategorierna

En studie av SI-övningars inverkan på studieresultaten vid LTH

Rapporten redovisar data om hur SI-verksamheten vid fem civilingenjörsprogram vid LTH inverkar på studieresultaten under det första läsåret samt på resultaten i en inledande matematikkurs till vilken SI-verksamheten är knuten. SI står för SamverkansInlärning och är en metod där en äldre student ”coachar” en grupp med nya studenter till att diskutera och lösa problem i ett ämne. Metoden syftar vid

Synchrotron Infrared Microspectroscopy at beamline 73 MAX-lab, Lund, Sweden

The infrared beamline at MAX-lab in Lund is equipped with a Bruker Hyperion 3000 microscope combined with an IFS/66v FTIR instrument. In combination with a number of different detectors and objectives this makes it possible to study a large number of different samples. For example there is a FPA detector for mapping larger areas and a Bolometer for measurements in the far infrared. A number of exa

Chemical labelling methods for gel free based proteomics

Popular Abstract in Swedish I den här avhandlingen behandlas olika aspekter av gelfria metoder för proteomanalys med masspektrometri, med tonvikt på inmärkningsmetoder. Arbetet är baserat på tre artiklar, där olika effekter vid inmärkning på peptider utreds, samt framtagningen av en ny typ av inmärkningsstrategi beskrivs. Kemisk inmärkning har haft stor betydelse för peptidbaserad proteomik eftersIn this thesis different aspects of gel free procedures for mass spectrometry based proteome analysis are addressed, with emphasis on labelling techniques. It is based on three original articles where the effects imposed onto peptides upon modification are investigated, and the development of a new type of labelling strategy is described. Chemical modification has been of great importance for the

Everyday working lives in a transnational corporation in Mexico: The contradictory cooptation of trade unionists

This article aims to contribute to the rich literature on neoliberalization and trade unions in Mexico by providing an examination of the contradictory relationships between capital, trade unions and the workers they represent, in a Swedish-based transnational corporation. The article investigates how the broader international relationships of dependency and exploitation are lived by workers and t