Sökning: "field theory"

Visar resultat 16 - 20 av 1940 avhandlingar innehållade orden field theory.

1. 16. Whatever goes around comes around : modular invariance in string theory and conformal field theory

   Författare :Patrick D. Roberts; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; conformal field theory; Kac-Moody algebra; covariant lattice; modular invariance; string theory;

   Sammanfattning : .... LÄS MER

3. 17. The measurement of chemical persistence in the field by benchmarking : Theory and Experiment

   Författare :Hongyan Zou; Michael McLachlan; Keri Hornbuckle; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chemical benchmarking; persistence; half-lives; modeling; threshold benchmarking; Applied Environmental Science; tillämpad miljövetenskap;

   Sammanfattning : Persistence is one of the core criteria in chemical exposure and hazard assessment. It is often defined as the half-life for the removal of a chemical from a specified environment by transformation. Chemicals with long transformation half-lives may pose high risks for wildlife or humans and be subject to long-range transport to remote areas. LÄS MER

4. 18. Restaurant meal experiences from customers' perspectives : a grounded theory approach

   Författare :Kai Victor Hansen; Inga-Britt Gustafsson; Øystein Jensen; Tommy Andersson; Örebro universitet; []
   Nyckelord :Customers; meal; grounded theory; à la Carte restaurants; meal experience categories; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Culinary Arts and Meal Science; Måltidskunskap; Måltidskunskap; Culinary Arts and Meal Science;

   Sammanfattning : The purpose of this doctoral dissertation has been to increase the knowledge of customers’ view on relation to commercial restaurant meals and thereby to increase the knowledge within the restaurant industry about customers’ perspectives about meals. The dissertation is based on four studies of customers’ meal experiences in á la Carte restaurants in Norway. LÄS MER

5. 19. Dualities, Symmetries and Unbroken Phases in String Theory : Probing the Composite Nature of the String

   Författare :Johan Engquist; Joseph Minahan; Charlotte Kristjansen; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Theoretical Physics; String Theory; M-Theory; Higher Spin Gauge Theory; Super Yang-Mills Theory; Anti-de Sitter Spacetime; Singletons; Massless Higher Spin Gauge Fields; AdS CFT Correspondence; Spin Chains; Semiclassical Strings; Tensionless Limits; Conformal Symmetry; Supersymmetry; Higher Spin Gauge Symmetry; Integrability; Fysik; Physics; Fysik;

   Sammanfattning : The thesis treats aspects of string/M-theory in anti-de Sitter spacetimes and their supersymmetric completions. By applying the AdS/CFT correspondence, as well as models of spin chains and singletons, we try to attain a better understanding of the underlying symmetries and the unbroken phases of string/M-theory. LÄS MER

7. 20. Specifying and Operationalizing an Organizational Theory of Crowdsourcing

   Författare :John Prpic; Åsa Wallström; Jan Kietzmann; Mana Farshid; Luleå tekniska universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; crowdsourcing; organizations; theory specification; theory operationalization; theory validation; Industrial Marketing; Industriell marknadsföring;

   Sammanfattning : Introduction: Despite rapid developments across multiple areas of research and practice, an organizational-level theory of Crowdsourcing has yet to emerge.Objectives: Therefore, this thesis has two major objectives; 1) specify the boundaries, constructs, and relationships of an organizational-level theory of Crowdsourcing, and 2) begin the theoretical validation process by operationalizing the theory for new exploratory, explanatory, and conceptual research. LÄS MER