Sökresultat

Filtyp

Din sökning på "*" gav 531336 sökträffar

A critical literature review of moisture and temperature conditions in wood exposed outdoors above ground

Summary In the majority of the field studies reviewed in this report samples were exposed outdoors above ground and only the average moisture content was determined. Therefore, no information is given about the moisture content in joints and other moisture traps. In many of the field studies, information on relative humidity, temperature, rainfalls etc. is missing and consequently these field stud

Cytokine gene polymorphisms and the risk of adenocarcinoma of the stomach in the European prospective investigation into cancer and nutrition (EPIC-EURGAST)

Background: The relative contribution to gastric cancer (GC) risk of variants in genes that determine the inflammatory response remains mostly unknown and results from genotyping studies are inconsistent. Patients and methods: A nested case-control study within the prospective European Prospective Investigation into Cancer and Nutrition cohort was carried out, including 248 gastric adenocarcinomas

The use and characterization of a backilluminated charge-coupled device in investigations of pulsed x-ray and radiation sources.

Examinations of bremsstrahlung and energetic electron beams from a novel laser plasma source motivate and assist characterization of a backthinned, backilluminated direct detection x-ray charge-coupled device (CCD), a topology that is uncommon in hard x-ray work. Behavior toward pseudomonochromatic ((55)Fe) and multichromatic ((241)Am) sources is briefly reviewed under optimized noise conditions.

C4b-Binding Protein Deposition is Induced in Diseased Aortic Heart Valves, Coinciding with C3d

Background and aim of the study: It has been found recently that activated complement is more widespread in diseased aortic valves compared to the endogenous complement inhibitors C1-inhibitor and clusterin. Previously, another endogenous inhibitor of complement, C4b-binding protein (C4BP) has been described in atherosclerotic diseased coronary arteries. The study aim was to analyze C4BP levels in

Buller i blåsväder : texter om ljud från vindkraftverk

Gösta Bluhm, Institutet för miljömedicin, Karolinska Institutet: Ljudstress, vindkraft och hälsa, Eja Pedersen, Halmstad Högskola & Lunds universitet: Närboendes upplevelser av ljud från vindkraftverk, Stefan Larsson, Rättssociologi, Lunds universitet: Vindkraftsutbyggnaden – vem bestämmer och baserat på vilken kunskap? Erik Skärbäck, avdelningen för landskapsarkitektur SLU, Alnarp: Hur mycket

I stadens skugga : den medeltida landsbygden som arkeologiskt forskningsfält

In this thesis focus is on two aims: 1) to investigate the emergence and establishment of medieval rural archaeology as an archaeological field of study, from the 1930’s up until today and 2) based on the results made in this study, to discuss generally how new subject areas are incorporated and maintained within the humanities. Thus, the scope of the thesis does not lie on the medieval period wit

Experimental brain tumors, dendritic cells and immunotherapy

Malignant astrocytomas are the most common primary tumors of the adult central nervous system. Surgical resection of tumor mass in combination with radiotherapy and chemotherapy is only palliative and there is a clear need for new and more effective therapeutic strategies. The aim of this study was to develop a dendritic cell (DC)-based vaccine for the treatment of experimental brain tumors with

Studies on the formation of aluminides in heated Nb-Al powder mixtures

The formation of aluminides during the heating of Nb-Al powder mixtures with different initial compositions (25, 33.3 and 75 at.% Al) has been studied using a differential scanning calorimeter. The effect of parameters like particle size, compaction and heating rate on the onset temperature of reaction has been determined. The results show that an increase in heating rate leads to an increase in o

Dynamic model of a post-combustion absorption unit for use in a non-linear model predictive control scheme

With an increasing demand on load flexibility in power supply networks, advanced control systems for plants with carbon capture units gain in significance. Minimizing the energy demand for carbon dioxide removal under these circumstances is a major task of such a control strategy. In this work a dynamic model in Modelica of a chemical absorption process run with an aqueous monoethanolamine (MEA) i

Lithic technology and behavioural modernity: New results from the Still Bay site, Hollow Rock Shelter, Western Cape Province, South Africa.

The Hollow Rock Shelter site in Western Cape Province, South Africa, was excavated in 1993 and 2008. This study presents new results from a technological analysis of Still Bay points and bifacial flakes from the site. The results show that Still Bay points from the site are standardized tools. The points in the assemblage consist of a complex mixture of whole and fragmented points in all phases of

Measurement Based Channel Characterization and Modeling for Vehicle-to-Vehicle Communications

Vehicle-to-Vehicle (V2V) communication is a challenging but fast growing technology that has potential to enhance traffic safety and efficiency. It can also provide environmental benefits in terms of reduced fuel consumption. The effectiveness and reliability of these applications highly depends on the quality of the V2V communication link, which rely upon the properties of the propagation channel

Inledning: Riternas förändring i det moderna Sverige

Riternas förändring i det moderna Sverige inleder ett temanummer i Svensk Teologisk Kvartalskrift där olika forskare vill diskutera hur olika religiösa traditioner genomgår rituell förändring på grund av migration, sekularisering och modernitet i dagens Sverige.

An intermediate luminosity transient in NGC 300: The eruption of a dust-enshrouded massive star

We present multi-epoch high-resolution optical spectroscopy, UV/radio/X-ray imaging, and archival Hubble and Spitzer observations of an intermediate luminosity optical transient recently discovered in the nearby galaxy NGC 300. We find that the transient (NGC 300 OT2008-1) has a peak absolute magnitude of M-bol approximate to -11.8 mag, intermediate between novae and supernovae, and similar to the

Att leva och sälja sin dröm - livsstilsföretagaren mellan familjeliv, marknad och politisk retorik

The article focuses on lifestyle entrepreneurship, characterised by a balancing work between personal lifestyle motives and economic motives. It builds on a qualitative study of business owners who have realized a life dream of starting a countryside business in the tourism and hospitality industry in Sweden. Through the notion of "balancing work", the analysis focuses on the tension between a per

Calculation of antenna radiation center using angular momentum

An algorithm to compute the radiation center of an antenna, using the Spherical wave expansion (SWE) of the far field or the far field directly, is introduced. The method is based on the angular momentum that is uniquely defined for any antenna far field pattern. The radiation center is defined as the phase reference point where the angular momentum is minimized and corresponds to minimizing the p

Computational analysis and verifications of characteristic modes in real materials

Despite its long history, the Theory of Characteristic Modes has only been utilized in antenna design for perfect electric conductors. This is due to computational problems associated with dielectrics and magnetic materials. In particular, the symmetric form of the PMCHWT surface formulation for the Method of Moments (MoM) solves for both external (real) and internal (non-real) resonances of a str

Västsvenska kyrkor från nygotikens storhetstid

Abstract in Undetermined Recension av: Henning Repetzky. Västsvenska kyrkor från nygotikens storhetstid. Göteborgsarkitekten Adrian C Petersons kyrkoarkitektur. CAL-Förlaget, 2008, 224 s.ISBN 91-973990-6-7