Sökning: "Funnel"

Visar resultat 1 - 5 av 40 avhandlingar innehållade ordet Funnel.

1. 1. Initiation of bacteriophage P2 rolling circle replication

   Författare :Richard Odegrip; Barbara Funnel; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Virus; DNA; Genetics; genetik;

   Sammanfattning : Viruses are very simple entities. In its most simple form, the virus consists of a protein shell containing genetic material. To propagate the virus needs a host to parasitize, in which it can replicate its genetic material and assembly new virus particles. Viruses that parasitize bacteria are termed bacteriophages. LÄS MER

3. 2. Funnel-Based Control for Coupled Spatiotemporal Specifications

   Författare :Farhad Mehdifar; Dimos V. Dimarogonas; Charalampos P. Bechlioulis; Bayu Jayawardhana; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Funnel-Based Control; Prescribed Performance Control; Uncertain Nonlinear Systems; Time-Varying Output Constraints; Coupled Spatiotemporal Constraints; Formation Control; Multi-Agent Systems; Trattbaserad kontroll; föreskriven prestandakontroll; osäkra icke-linjära system; tidsvarierande utgångsbegränsningar; kopplade rumsliga begränsningar; formationskontroll; multiagentsystem; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : In the past decade, the integration of spatiotemporal constraints into control systems has emerged as a crucial necessity, driven by the demand for enhanced performance, guaranteed safety, and the execution of complex tasks. Spatiotemporal constraints involve criteria that are dependent on both space and time, which can be represented by time-varying constraints in nonlinear control systems. LÄS MER

4. 3. Identitet i praktik : Lokala, regionala och överregionala sociala sammanhang inom nordlig trattbägarkultur

   Författare :Fredrik Hallgren; Kjel Knutsson; Lars Forsberg; Uppsala universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Archaeology; Stone Age; Early Neolithic; Funnel Beaker Culture; Funnel Beaker pottery; polygonal batte-axes; farmers; hunter-gatherers; culture; practice; identity; communities of practice; Archaeology; Arkeologi;

   Sammanfattning : This thesis discusses the introduction of cultural practices such as cultivation, cattle herding, pottery craft and specific lithic traditions in the region around the Baltic Sea during the Stone Age. The main focus is on the Early Neolithic (4000-3300 cal. BC) Funnel Beaker Culture of Mälardalen and Bergslagen in eastern Central Sweden. LÄS MER

5. 4. Planning and Control of Uncertain Cooperative Mobile Manipulator-Endowed Systems under Temporal Logic Tasks

   Författare :Christos Verginis; Dimos Dimarogonas; Magnus Egerstedt; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multi-agent systems; cooperative manipulation; formation control; temporal logic; motion planning; adaptive control; funnel control; navigation; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Control and planning of multi-agent systems is an active and increasingly studied topic of research, with many practical applications such as rescue missions, security, surveillance, and transportation. This thesis addresses the planning and control of multi-agent systems under temporal logic tasks. LÄS MER

7. 5. Bird orientation: external cues and ecological factors

   Författare :Johan Bäckman; Evolutionär ekologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; tracking radar; Emlen funnel.; Animal ecology; Djurekologi; oscillatory orientation; roosting flight; scatter; concentration; heading; cue calibration; light dependent; magnetoreception; subcutaneous fat stores; body condition; energetics; geomagnetic field; visual cues; orientation; birds; migration;

   Sammanfattning : Birds are generally capable of accurate orientation. In this thesis I present studies about the external cues and the ecological factors that influences bird orientation. A multitude of environmental cues are used to select and maintain a proper direction. LÄS MER