Sökning: "jens engström"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden jens engström.

1. 1. Underwater Electrical Connections and Remotely Operated Vehicles

   Författare :Flore Remouit; Jens Engström; Jens Abrahamsson; Simon Lindroth; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Remotely Operated Vehicles (ROVs) are underwater robots that perform different kind of operations, from observation to heavier tasks like drilling, carrying and pulling cables, etc. Those ROVs are costly and require skilled personal to operate it as well as equipment for transportation and deployment (boats, cranes, etc.). LÄS MER

3. 2. Hydrodynamic Modeling of the Energy Conversion from Ocean Waves to Electricity

   Författare :Jens Engström; Uppsala universitet; []
   Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : Research within wave energy conversion has seen a large increase during the last years. Several concepts are now taking the final steps towards commercialization. LÄS MER

4. 3. Hydrodynamic Modelling for a Point Absorbing Wave Energy Converter

   Författare :Jens Engström; Jan Isberg; Mats Leijon; Antonio Sarmento; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Ocean wave energy; Point absorber; Wave energy converter; Wave energy transport; Polychromatic wave; Linear generator; Resonance; Finite depth; Modelling; Engineering Science with specialization in Electronics; Teknisk fysik med inriktning mot elektronik;

   Sammanfattning : Surface gravity waves in the world’s oceans contain a renewable source of free power on the order of terawatts that has to this date not been commercially utilized. The division of Electricity at Uppsala University is developing a technology to harvest this energy. LÄS MER

5. 4. 11C Molecular Imaging in Focal Epilepsy

   Författare :Torsten Danfors; Eva Kumlien; Jens Sörensen; Elisabeth Ronne-Engström; Juha Rinne; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; positron emission tomography; methionine; NK1; substance p; flumazenil; deprenyl; pk11195; phosphoimager; autoradiography; TBI; traumatic brain injury; iron chloride; ferrous chloride; Neurology; Neurologi; Radiology; Radiologi;

   Sammanfattning : Epilepsy is a common neurological disease affecting 6 million people in Europe. Early prevention and accurate diagnosis and treatment are of importance to obtain seizure freedom. In this thesis new applications of carbon-11-labelled tracers in PET and autoradiographic studies were explored in focal epilepsy. LÄS MER

7. 5. Wave Power for Desalination

   Författare :Jennifer Leijon; Cecilia Boström; Irina Temiz; Jens Engström; Deborah Greaves; Uppsala universitet; []
   Nyckelord :Wave power; desalination; freshwater; engineering education; linear generator; wave energy converter; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

   Sammanfattning : This doctoral thesis presents work related to wave powered desalination. Wave power for desalination could be an interesting alternative for islands or coastal regions facing freshwater shortage, and several systems have been proposed in literature. However, desalination is a process which demands a lot of energy. LÄS MER