Sökning: "Petter Persson"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Petter Persson.

1. 1. Quantum photoelectrochemistry : Theoretical studies of organic adsorbates on metal oxides surfaces

   Författare :Petter Persson; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Quantum chemistry; Quantum chemistry; photoelectrochemistry; metal oxide surfaces; organic adsorbates; Kvantkemi; Quantum chemistry; Kvantkemi; Quantum Chemistry; kvantkemi;

   Sammanfattning : Interactions between organic molecules and transition metal oxide surfaces have been investigated by means of quantum chemical calculations. The studies have been aimed at understanding electrode-adsorbate interactions in photoelectrochemical devices, such as dye-sensitized solar cells. LÄS MER

3. 2. Efficient Optimization of Complex Products : A Simulation and Surrogate Model Based Approach

   Författare :Johan Persson; Johan Ölvander; Petter Krus; Hirpa G. Lemu; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : This thesis investigates how to use optimization efficiently when complex products are developed. Modelling and simulation are necessary to enable optimization of products, but here it is assumed that verified and validated models of the products and their subsystems are available for the optimization. LÄS MER

4. 3. I skuggan av lungcancer - närståendes erfarenheter

   Författare :Carina Persson; Petter Gustavsson; Karin Sundin; Inger Ekman; vårdvetenskap och samhälle Neurobiologi; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Omvårdnad; Nursing;

   Sammanfattning : .... LÄS MER

5. 4. Visioner om medborgerliga publiker : Medier och socialreformism på 1930-talet

   Författare :Petter Tistedt; Frans Lundgren; Mats Persson; Per Wisselgren; Uppsala universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; history; social reform; social engineering; population debate; leisure; mass media; political culture; democracy; advertising; Sweden; 1930s; Alva Myrdal; Gunnar Myrdal; historia; socialreformism; social ingenjörskonst; befolkningsdebatt; fritid; massmedia; politisk kultur; demokrati; reklam; Sverige; 1930-tal; Alva Myrdal; Gunnar Myrdal; Idé- och lärdomshistoria; History of Sciences and Ideas;

   Sammanfattning : This dissertation investigates how progressive social reformers in Sweden used mass media in order to encourage the general public to take part in discussions on contemporary social and political problems. Two cases are studied in detail: the population debates of the mid-1930s, and the Modern Leisure exhibition in Ystad 1936. LÄS MER

7. 5. Quantum Chemical Modeling of Dye-Sensitized Titanium Dioxide : Ruthenium Polypyridyl and Perylene Dyes, TiO2 Nanoparticles, and Their Interfaces

   Författare :Maria J. Lundqvist; Sten Lunell; Petter Persson; Lars Ojamäe; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Quantum chemistry; density functional theory; chromophore; nanocrystal; interface; photoexcitation; triplet state; surface electron transfer; electronic coupling strength; Kvantkemi; Quantum chemistry; Kvantkemi;

   Sammanfattning : Quantum chemical calculations have been used to model dye-sensitized nanostructured titanium dioxide systems that can be used in solar cells for solar energy to electricity conversion. Structural, electronic and spectral properties of isolated dyes and both bare and dye-sensitized TiO2 have been calculated with density functional theory, providing detailed information about both the separate parts and the dye-TiO2 interface. LÄS MER