Sökning: "a theory of fields"

Visar resultat 41 - 45 av 643 avhandlingar innehållade orden a theory of fields.

1. 41. From Quantum to Classical Scattering of Kerr Black Holes : A construction of massive higher-spin scattering amplitudes and their classical limits

   Författare :Lucile Cangemi; Henrik Johansson; Yu-tin Huang; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Higher-spin theory; higher-spin amplitudes; Kerr black holes; EFT; black hole scattering; classical limit; Theoretical Physics; Teoretisk fysik;

   Sammanfattning : Gravitational scattering processes involving black holes as asymptotic states can provide insight into the classical dynamics of binary black hole systems. The observed gravitational waves emitted during mergers need to be compared to high-precision theoretical predictions. LÄS MER

3. 42. A Century of Swedish Gustavian Style : Art History, Cultural Heritage and Neoclassical Revivals from the 1890s to the 1990s

   Författare :Hedvig Mårdh; Emilie Karlsmo; Per Strömberg; Helena Kåberg; Kjetil Fallan; Uppsala universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Gustavian style; authenticity; style; taste; Swedish art history; nationalism; exhibition design; reconstruction; period furniture; historical societies; design history; critical heritage studies; museum studies; historiography; Nordiska Museet; Nationalmuseum; Svenska Slöjdföreningen; Konstvetenskap; History of Art;

   Sammanfattning : This is a study of the intersection between art historical theory and practice, and cultural heritage, where the revivals and mediations of the neoclassical Gustavian style have been used as a platform for further exploration. In relation to this, the use and changing meanings of the concepts authenticity and style have been examined. LÄS MER

4. 43. Götter auf Erden : Hethitische Rituale aus Sicht historischer Religionsanthropologie

   Författare :Heike Peter; Centrum för teologi och religionsvetenskap; []
   Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; Historical Anthropology of Religions; Ancient Anatolia; “Magic Rituals”; Pierre Bourdieu; Practice Theory; Ritual Studies; History of Religions; Historical Anthropology; Theology; Teologi;

   Sammanfattning : This thesis deals with the recent discourse about Hittite ritual and religion and assumes an alternative approach. It analyses how the most important researchers in the fields of Hittitology and History of Religions, who have been working with Hittite rituals and religion, describe and explain the rituals. LÄS MER

5. 44. Computation of EMC Properties of Slots and Printed Circuit Boards

   Författare :Jan Carlsson; RISE; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; corrugations; crosstalk; FDTD; spectral domain; EFIE; chokes; Finite Difference Method; printed circuit board; transmission line network; EMC analysis; PCB; transmission line theory; radiated emission; Method of moments; MM; MoM; electric field integral equation; soft and hard surfaces; slot; radiated susceptibility;

   Sammanfattning : This thesis deals with the numerical solution of electromagnetic compatibility (EMC) problems for electronic systems, such as radiated emission, susceptibility and crosstalk on printed circuit boards and transmission through slots. The analysis of printed circuit boards is done by using an electric field integral equation (EFIE) expressed in the frequency domain, which is solved by using the method of moments. LÄS MER

7. 45. Models and Methods for Random Fields in Spatial Statistics with Computational Efficiency from Markov Properties

   Författare :David Bolin; Matematisk statistik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; random fields; Gaussian Markov random fields; Matérn covariances; stochastic partial differential equations; Computational efficiency;

   Sammanfattning : The focus of this work is on the development of new random field models and methods suitable for the analysis of large environmental data sets. A large part is devoted to a number of extensions to the newly proposed Stochastic Partial Differential Equation (SPDE) approach for representing Gaussian fields using Gaussian Markov Random Fields (GMRFs). LÄS MER