Sökning: "Jonas Svensson"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden Jonas Svensson.

1. 1. Contrast-Enhanced Magnetic Resonance Angiography - Development and optimization of techniques for paramagnetic and hyperpolarized contrast media

   Författare :Jonas Svensson; Malmö Medicinsk strålningsfysik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; egenskaper elektriska; Kondenserade materiens egenskaper:elektronstruktur; spectroscopy; relaxation; Angiography; Magnetic resonance; Contrast-enhanced; Hyperpolarized; Condensed matter:electronic structure; 13C; supraconductors; electrical; magnetic and optical properties; magnetiska och optiska ; supraledare; magnetisk resonans; spektroskopi;

   Sammanfattning : Contrast-enhanced magnetic resonance angiography (CE-MRA) is a diagnostic method for imaging of vascular structures based on nuclear magnetic resonance. Vascular enhancement is achieved by injection of a contrast medium (CM). LÄS MER

3. 2. The longitudinal biology of depression : PET studies of the dopamine and serotonin systems

   Författare :Jonas Svensson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The involvement of monoamine neurotransmission in the pathophysiology of depression was established already in the 1960s. However despite an abundance of research, the exact role of the serotonin (5-HT) and dopamine systems in depression have remained elusive. LÄS MER

4. 3. Women's Human Rights and Islam : a Study of Three Attempts at Accommodation

   Författare :Jonas Svensson; Centrum för teologi och religionsvetenskap; []
   Nyckelord :HUMANIORA; HUMANITIES; Islamology; History of Religions; Islam; human rights; women’s human rights; Women’s Convention; CEDAW; gender; globalisation; Qur’an; hadith; historiography; Riffat Hassan; Fatima Mernissi; History; Abdullahi Ahmed an-Na‘im.; Historia; Non-Christian religions; Världsreligioner ej kristendom ; Mänskliga rättigheter;

   Sammanfattning : The dissertation focuses on interpretations of Islam that claim compatibility with international human rights norms in the context of women’s rights. These interpretations are seen as parts of an on-going contemporary international debate on women’s human rights and Islam that engages Muslims as well as non-Muslims. LÄS MER

5. 4. Extreme Electron Beams and Brilliant X-rays : Generation, Manipulation and Characterization of Relativistic Electron Beams for and from Plasma-Based Accelerators

   Författare :Jonas Björklund Svensson; Atomfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; laser; plasma; wakefield; acceleration; accelerator; relativistic; electrons; x-rays; ultra-fast; betatron; laser-wakefield acceleration; plasma-wakefield acceleration; Fysicumarkivet A:2020:Björklund;

   Sammanfattning : This thesis is based on work done by the author on the development of plasma-based electron accelerators driven by ultra-intense laser pulses and dense electron bunches. Plasma based accelerators have several benefits, such as accelerating fields around 1000 times stronger than in “conventional” radio-frequency accelerators, which can allow for shrinking the overall footprint of the accelerator. LÄS MER

7. 5. Active Junction Control and Piezoelectric Hybrid Damping for Improving the Acoustic Performance of Lightweight Structures

   Författare :Jonas Svensson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hybrid passive-active control; Piezoelectric shunt damping; Sound radiation; Active junction control;

   Sammanfattning : Weight reduction is a key factor in lowering the fuel consumption and thereby the greenhouse emissions from vehicles. However, reducing the weight normally results in a deterioration of the acoustic performance. Thus, the purpose of this thesis is to investigate damping treatments for lightweight vehicle panels. LÄS MER