Sökning: "Henrik Gold"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden Henrik Gold.

1. 1. Microwave Promoted Organometallic Reactions : Preparation of Novel Cyclic HIV-1 Protease Inhibitors

   Författare :Henrik Gold; Uppsala universitet; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

3. 2. Going for gold : A spectroelectrochemical and catalytic study of gold materials

   Författare :Sara Boscolo Bibi; Hansson Tony; Sergey Koroidov; Henrik Öström; Richard Kramer Campen; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Gold oxidation; oxide-derived metals; electrochemistry; X-ray spectroscopy; optical nonlinear spectroscopy; AuNPs supported in metal oxides; mass spectrometry; kemisk fysik; Chemical Physics;

   Sammanfattning : With the increase in demand for renewable energy, understanding chemical processes is essential for improving the design of catalysts in order to achieve better performance. This thesis summarises the experimental investigation of three types of catalytic gold materials: gold oxide formed from gold films, oxide-derived gold (OD-Au) produced from gold films, and gold nanoparticles supported on metal oxides. LÄS MER

4. 3. DESIREE: Instrumentation Developments and Hot Metal Cluster Decays

   Författare :Emma K. Anderson; Henning Schmidt; Henrik Cederquist; Henning Zettergren; Oded Heber; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DESIREE; microchannel plate; clusters; spontaneous decay; small metal cluster anions; silver; copper; gold; carbon dianions; fragmentation; vibrational autodetachment; DESIREE; mikrokanalplattor; kluster; spontana sönderfall; små metallklusteranjoner; silver; koppar; guld; kol di-anjoner; fragmentering; Physics; fysik;

   Sammanfattning : This thesis presents instrumentation developments and measurements performed at the Double ElectroStatic Ion Ring ExpEriment, DESIREE, at Stockholm University. DESIREE operates at cryogenic temperatures ~13 K, with very low background pressures of ~10-14mbar, allowing the observation of stored ions to long times of tens of seconds and longer. LÄS MER

5. 4. Heterogeneous Integration of Shape Memory Alloysfor High-Performance Microvalves

   Författare :Henrik Gradin; Göran Stemme; Peter Woias; KTH; []
   Nyckelord :Microelectromechanical systems; MEMS; silicon; wafer-level; integration; heterogeneous integration; wafer bonding; Au-Si; eutectic bonding; release etching; electrochemical etching; microvalves; microactuators; shape memory alloy; SMA; NiTinol; TiNi; NiTi; cold-state reset; bias spring; gate valves; wire bonding;

   Sammanfattning : This thesis presents methods for fabricating MicroElectroMechanical System (MEMS) actuators and high-flow gas microvalves using wafer-level integration of Shape Memory Alloys (SMAs) in the form of wires and sheets. The work output per volume of SMA actuators exceeds that of other microactuation mechanisms, such as electrostatic, magnetic and piezoelectric actuation, by more than an order of magnitude, making SMA actuators highly promising for applications requiring high forces and large displacements. LÄS MER

7. 5. Human studies evaluating dGEMRIC as a prognostic tool for knee osteoarthritis

   Författare :Henrik Owman; Malmö Institutionen för kliniska vetenskaper; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Delayed gadolinium-enhanced MRI of cartilage dGEMRIC ; knee; cartilage; glycosaminoglycan; anterior cruciate ligament injury; meniscal injury; osteoarthritis; joint space narrowing; osteophyte;

   Sammanfattning : Osteoarthritis (OA) is the most common joint disorder worldwide, causing joint pain and stiffness. The current gold standard for diagnosing knee OA is radiography. However, the disease has often progressed well beyond the point of no return once radiographic cartilage changes become visible. LÄS MER