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Optically controlled one-dimensional photonic crystal structures for the THz range are studied both theoretically and experimentally. A GaAs:Cr layer constitutes a defect in the photonic crystals studied; its photoexcitation by 800 nm optical femtosecond pulses leads to the modulation of the THz beam. Since the THz field can be localized in the photoexcited layer of the photonic crystal, the inter
Statistical shape models based on point distribution models are powerful tools for image segmentation or shape analysis. The most challenging part in the generation of point distribution models is the identification of corresponding landmarks among all training shapes. Since in general the true correspondences are unknown, correspondences are frequently established under the hypothesis that correc
A deep understanding of double-directional wireless channels is imperative for wireless system design. This necessitates the development of precise channel models through channel sounding. Given the dynamic nature of wireless channels, a short measurement time is highly desirable. In this paper, we present and validate a dual-polarized millimeter-wave channel sounder that uses a rotating mirror me
Summary form only given. The windmill technique is an attractive alternative to the Lempel-Eastman technique for fast m-sequence generation. The author has generalized the class of linear recurrence relations for which the windmill technique results in an m-sequence generator. A converse to a set of known necessary conditions has been obtained.
In this paper we present a unified formulation for a large class of relative pose problems with radial distortion and varying calibration. For minimal cases, we show that one can eliminate the number of parameters down to one to three. The relative pose can then be expressed using varying calibration constraints on the fundamental matrix, with entries that are polynomial in the parameters. We can
The onset of formulating strategies and policies regarding the bioeconomy can be, at least partly, attributed to the publication of the bioeconomy policy agenda by the OECD in 2009. The aim of this study is to analyse selected national strategies and policies regarding the development of a bioeconomy and to clarify similarities and differences between them. The article presents a comparative overv
American consumption based lifestyles have a grave impact on the environment and personal wellbeing of Americans, creating unhealthy consumption patterns, unforeseen negative effects on individuals, and ultimately unsustainable lifestyles overall. Voluntary simplicity (VS), or individuals who resist consumerist tendencies seeking a higher quality of life through simplicity, is an answer to these c
This thesis compares Auto Regressive Moving Average (ARMA) and Generalized Auto Regressive Conditional Heteroscedacity (GARCH) models for three metal commodities. ARMA models have an unconditionally non-random and constant variance, which typically serves well in effectively representing homoscedastic data. The GARCH models feature variable variance that is non-random when conditioning on the past
The anaerobic digestion process results in the production of biogas from a large diversity of organic residues, which can be used as an alternate source of energy generation and for waste management. However, the biogas production technology is not exploited efficiently due to the characteristics of raw materials, poor methane yields, process instability, limited raw materials and lack of knowledg
Diagnostik av cancer avseende typ och ursprung är tillsammans med hur avancerad cancern är och om vissa särskilda tumöregenskaper föreligger de viktigaste faktorerna för val av behandling. Cancer diagnostiseras i de flesta fall med hjälp av mikroskop. Cancer i lunga kan vara svårdiagnostiserad då man ofta har tillgång till begränsad mängd vävnad från provtagning från tumören, och immunhistokemiskaDiagnostics of cancer concerning type and origin is, together with cancer stage and some specific tumor characteristics, the most important factors for treatment selection. Most cancers are diagnosed using a microscope. Pulmonary cancers may be tricky to diagnose as there is often limited tissue to examine from the tumor sampling, and immunohistochemical analyses are often necessary for subtyping
Ambitions and ClarificationsThe book takes its point of departure in the "intimate visions of society" that are significant of contemporary social life. This concept refers to the tendency to apprehend good social relations as personal, close and warm, while bad relations correspondingly are perceived as impersonal, cold, distant and alienated. Exemplary categories, such as closeness, warmth, commAmbitions and ClarificationsThe book takes its point of departure in the "intimate visions of society" that are significant of contemporary social life. This concept refers to the tendency to apprehend good social relations as personal, close and warm, while bad relations correspondingly are perceived as impersonal, cold, distant and alienated. Exemplary categories, such as closeness, warmth, comm
Our mission is to establish a major trans-faculty bio-imaging center at Lund University (Lund University Bioimaging Center), combining knowledge in the fields of medical physics, preclinical and clinical medicine, chemistry, technology and applied mathematics in order to develop imaging methods for the advanced study of human morphology, cellular metabolism and physiological function in health and
Pictures and other iconic media are used extensively in psychological experiments on nonhuman primate perception, categorisation, etc. They are also used in everyday interaction with primates, and as pure entertainment. But in what ways do primates understand iconic artefacts? What implications do these different ways have for the conclusions we can draw from those studies on perception and catego
