Nearfield Radar Cross Section (RCS) measurements and Inverse Synthetic Aperture Radar (ISAR) processing are used in this study to obtain geometrically correct images and farfield RCS. The back projection algorithm is used to determine the amplitudes and locations for the scatterers in a point by point imaging process. Different approximations are used to sum the nearfield RCS recorded at an azimut

This article focuses on a theoretical evaluation of a hybrid excited synchronous machine where the excitation circuit is a combination of electrically magnetized (EM) and permanent magnetized (PM) magnet poles in the rotor. This alternating pole configuration of electrically magnetized (EM) or permanent magnet (PM) poles determines the hybrid magnetization. The target of the analysis is a traction

Contents: - Systematic collection of field data for service life prediction of concrete structures. - Moisture in marine concrete structures - Studies in the BMV-project 1992-1996. - Scaling resistence of concrete field exposure tests. - Chloride induced corrosion in marine concrete structures. - Chloride threshold values in reinforced concrete. - A new method for determing chloride thresholds as

Sustainable development and engineering ethics as well as social aspects of engineering are emerging issues related to power electronics. Several important topics like environmentally sustainable products and electromagnetic compatibility fit into this description. Therefore, these issues have recently become part of the advanced course on power electronics at Lund University. The authors' intenti

The lichenized ascomycete genus Xanthoria (Fr.) Th.Fr. (Teloschistaceae) in continental United States and Canada is revised. The following 15 species are recognized: Xanthoria borealis, X. candelaria, X. concinna, X. elegans, X. fallax, X. fulva, X. hasseana, X. mendozae, X. montana, X. oregana, X. parietina, X. polycarpa, X. sorediata, X. tenax, and X. ulophyllodes. The morphology, anatomy, secon

Popular Abstract in Swedish När vi blir infekterade av virus eller bakterier (patogener) hjälper olika delar av vårt immunförsvar till att försvara oss från dem. Vår hud, slemhinnor, magsyra och vissa immunceller hjälper till att ospecifikt och snabbt hindra patogenerna från att angripa oss och ofta räcker detta för att infektionen skall klaras av. Men det finns en del till av vårt immunförsvar soT lymohocytes (T cells) and B lymphocytes (B cells) are important effector cells of the adaptive immune system. In response to infections, B cells are activated and produce antibodies against specific antigens. There are two types of T cells, cytotoxic T cells that kill cells infected with bacteria or viruses, and helper T (Th) cells that help B cells produce antibodies by secreting cytokines as w

When making nanoelectrodes for applications in liquid cells it is plausible that the less noble metal layer may be negatively affected, i.e. it will be etched away leading to very unstable conditions during operation. Here we describe a dry method to produce such a molecular layer consisting of mercaptopropyltriethoxysilane (MPTS) making it possible to controllable and reproducibly form a covalent