Sökning: "Liang"

Visar resultat 1 - 5 av 54 avhandlingar innehållade ordet Liang.

1. 1. Identification using Convexification and Recursion

   Författare :Liang Dai; Thomas Schön; Magnus Jansson; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signal processing; System identification; Convex optimization; Recursive Bayesian method; Elektroteknik med inriktning mot signalbehandling; Electrical Engineering with specialization in Signal Processing;

   Sammanfattning : System identification studies how to construct mathematical models for dynamical systems from the input and output data, which finds applications in many scenarios, such as predicting future output of the system or building model based controllers for regulating the output the system.Among many other methods, convex optimization is becoming an increasingly useful tool for solving system identification problems. LÄS MER

3. 2. On some sparsity related problems and the randomized Kaczmarz algorithm

   Författare :Liang Dai; Kristiaan Pelckmans; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering with specialization in Signal Processing; Elektroteknik med inriktning mot signalbehandling;

   Sammanfattning : This thesis studies several problems related to recovery and estimation. Specifically, these problems are about sparsity and low-rankness, and the randomized Kaczmarz algorithm. This thesis includes four papers referred to as Paper A, Paper B, Paper C, and Paper D. LÄS MER

4. 3. Investigation and simulation of tool wear in press hardening

   Författare :Liang Deng; Göran Berglund; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

   Sammanfattning : Due to the requirements of higher strength components and lower carbon dioxide emission, press hardening becomes prevalent in the automotive industry. Heating a boron alloyed steel blank to obtain the austensite phase at high temperature and quenching it to martensitic phase enhances the strength of the products and still allows complex shapes. LÄS MER

5. 4. Engineering cyanobacteria for increased growth and productivity

   Författare :Feiyan Liang; Peter Lindblad; Pia Lindberg; Olaf Kruse; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cyanobacteria; CBB cycle; growth; biomass; photosynthesis; ethanol;

   Sammanfattning : Increasing the photosynthetic efficiency is one of the strategies to increase the crop yields to meet the requirement of 50% more food by 2050. Due to the similarity on photosynthesis between crops and cyanobacteria, cyanobacteria are ideal alternatives to study photosynthesis since cyanobacteria are prokaryotes, easier to engineer and have shorter life cycle. LÄS MER

7. 5. Innate immune responses in vivo after antigen administration : implications for vaccine development

   Författare :Frank Liang; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Inducing high magnitude of antibodies with epitope breadth over prolonged periods of time is likely a prerequisite to prevent several of the world’s most serious infectious diseases such as HIV-1, malaria and tuberculosis for which there are no vaccines yet. A much better understanding of the innate immune mechanisms that are critical for inducing strong responses to vaccination is therefore essential. LÄS MER