Sökning: "Global Optimization"

Visar resultat 31 - 35 av 291 avhandlingar innehållade orden Global Optimization.

1. 31. Robust Multi-objective Optimization of Rare Earth Element Chromatography

   Författare :Hans-Kristian Knutson; Avdelningen för kemiteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chromatography; Rare earth elements; Modeling; Multi-objective optimization; Robust optimization; Chromatography; Rare earth elements; Modeling; Multi-objective optimization; Robust optimization;

   Sammanfattning : Rare earth elements comprise the metallic elements known as lanthanides as well as scandium and yttrium. They are extensively used in modern technological industries and are considered as strategic commodities in many countries. LÄS MER

3. 32. Numerical Optimization of a propeller in a given wake and behind a ship

   Författare :Kaijia Han; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; propeller geometry; pressure fluctuation; correction; full scale; efficiency; RANS; cavitation; grid density; verification; delivered power; optimization; Hamburg test case; iteration number;

   Sammanfattning : The work presented in this thesis includes two stages in a research project at the Rolls-Royce University Technology Center (UTC) at Chalmers Technology University. The objective of the project is to develop an optimization technique for ship/propeller interaction. LÄS MER

4. 33. On Methods for Discrete Topology Optimization of Continuum Structures

   Författare :Mats Werme; Krister Svanberg; Wolfgang Achtziger; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Topology optimization; Stress constraints; Sensitivity calculations; Neighbourhood search methods; Sequential integer programming; Optimization; systems theory; Optimeringslära; systemteori;

   Sammanfattning : This thesis consists of an introduction and seven appended papers. The purpose of the introduction is to give an overview of the field of topology optimization of discretized load carrying continuum structures. LÄS MER

5. 34. Optimization Methods for Robust Control with Application to Resistive Wall Modes in Tokamaks

   Författare :Carl-Magnus Fransson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; H?; fusion; QFT; performance; tokamak; optimization; robustness; structured singular value; control; plasma; resistive wall modes; LMI; PID control;

   Sammanfattning : In many research areas physical systems are described by mathematical models. We focus here on systems that are regulated by a controller, typically realized by software, whose design involves certain parameters. LÄS MER

7. 35. Spatio-temporal forecasting and optimization for integration of solar energy in urban energy systems

   Författare :Dennis van der Meer; Joakim Widén; Pierre Pinson; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; forecasting; photovoltaic; electricity use; net load; probabilistic; multivariate; optimization; Engineering Science with specialization in Civil Engineering and Built Environment; Teknisk fysik med inriktning mot byggteknik och byggd miljö;

   Sammanfattning : The increasing penetration of non-dispatchable renewable energy sources such as photovoltaic (PV) systems in the electricity generating mix poses challenges to the operational performance of the power system. On the demand side, advanced schemes that increase the flexibility of customer loads and the increase in electrification are set to noticeably alter electricity demand. LÄS MER