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In the present study, experimental studies are carried out to investigate the heat transfer and friction characteristics in a square duct roughened by various-shaped ribs on one wall. The ribs are oriented transversely to the main stream in a periodic arrangement. Liquid crystal thermography is employed to measure the local and average heat transfer coefficient on the ribbed surface. The rib heigh
We describe a surfactant-promoted reductive route for the shape-controlled synthesis of gold nanostructures by hydrothermal treatment of chloroauric acid in the presence of the surfactant hexadecyltrimethylammonium bromide (CTAB) without using reducing agent. The results show that the cationic surfactant CTAB provides the dual function of promoting Au-III reduction to Au-0 and size- and shape-cont
We examined the relationship between plant species diversity, productivity and the development of the soil community during early secondary succession on former arable land across Europe. We tested the hypothesis that increasing the initial plant species diversity enhances the biomass production and consequently stimulates soil microbial biomass and abundance of soil invertebrates. We performed fi
In this article the mediatisation of Zlatan Ibrahimovic's autobiography, written by the journalist David Lagercrantz, is investigated through the reception of the book as well as of other media formats in which it was made public. A main point made is that the processes of mediatisation is a main factor in creating a literary trademark and bestseller. The footballer's mythic life story, as express
This Technical Design Report (TDR) for the High-level Trigger (HLT), Data Acquisition (DAQ) and Controls of the ATLAS experiment builds on the earlier documents published on these systems: Trigger Performance Status Report, DAQ, EF, LVL2 and DCS Technical Progress Report, and High-Level Triggers, DAQ and DCS Technical Proposal. Much background and preparatory work relevant to this TDR is reference
Flexible multibody dynamics (FMD) has found many applications in control, analysis and design of mechanical systems. FMD together with the theory of structural optimization can be used for designing multibody systems with bodies which are lighter, but stronger. Topology optimization of static structures is an active research topic in structural mechanics. However, the extension to the dynamic case
Popular Abstract in Swedish Alla levande varelser består av celler. En cell innehåller ett stort antal kemiska föreningar, och särskilt viktiga är proteiner och DNA. Proteiner utför många livsnödvändiga kemiska reaktioner, och DNA består av gener som beskriver hur dessa proteiner konstrueras. En gen kan vara uttryckt, så att det protein den beskriver - kodar för - tillverkas, men den kan också varLife as we know it is based on cells that use proteins and RNA to carry out metabolism, self-replication, and other essential tasks. The genes that code for these molecules are encoded in DNA, and through the processes of transcription and translation the cell expresses its genes. Some proteins are transcription factors that regulate the transcription rate of genes, so genes interact and form a ge
Popular Abstract in Swedish Från början användes uttrycket "mannen i ledet" bara om meniga soldater, men det är också ett bildligt uttryck med innebörden gemene man, gräsrot, medlem på fältet/gräsrotsnivå/verkstadsgolvet. Den här avhandlingen handlar om unga män som under mitten av 1990-talet gjorde lumpen på ett pjäskompani vid Wendes artilleriregemente i skånska Hässleholm. ”Pjäs” betyder kanoneThis dissertation deals with young men who in the mid 1990s made their military service at a cannon company at Wende’s artillery regiment in the scanian town Hässleholm. ”Cannon” refers not only to cannons, but also to haubitses, grenade-throwers and other heavy arms. The focus, however, is on cultural and social aspects of everyday military service. What does actually happen in the encounter betw
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