Sökning: "charging current"

Visar resultat 1 - 5 av 75 avhandlingar innehållade orden charging current.

1. 1. Congestion Charging in Urban Networks : Modelling Issues and Simulated Effects

   Författare :Ida Kristoffersson; Leonid Engelson; Otto Anker Nielsen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transport Modelling; Congestion Charging; Departure Time Choice; Dynamic Traffic Simulation; Welfare Effects; Equity;

   Sammanfattning : One of the major challenges cities face today, in their development towards sustainable urban areas, is the need for an efficient and environmentally friendly transport system. This transport system should manage to tie together the city without strong adverse impact on urban environment, air-quality and climate change. LÄS MER

3. 2. Towards Low-Voltage, High-Current : A pioneering drive concept for battery electric vehicles

   Författare :Stefan Haller; Kent Bertilsson; Bengt Oelmann; Peng Cheng; Dieter Gerling; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low voltage; high current; EV; BEV; electrical machine; power electronics; MOSFET;

   Sammanfattning : The first electric low-voltage vehicles were constructed in the mid-19th century, but by the early 20th century they were progressively replacedby successors with internal combustion engines. As the consequences ofusing fossil fuels are better understood, our society is now transitioning back. LÄS MER

4. 3. Studies on hybrid superconducting junctions

   Författare :Cecilia Holmqvist; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Critical Current; Single-Electron Box; Attractive Correlations; Josephson Junction; Negative Charging Energy; Quasiclassical Superconductivity; Josephson Current;

   Sammanfattning : In the field of nanoelectronics, one seeks to combine quantum mechanical effects with macroscopic entities such as currents in order to find new ways of storing and manipulating information. One possibility to accomplish this is to use the quantum correlations found in superconductors. LÄS MER

5. 4. Electrolyte evaluation and engineering for the performance enhancement of electrochemical capacitors

   Författare :Mohammad Mazharul Haque; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal charging; supercapacitors; Energy storage; ionic liquid; self-discharge; thermoionic system; redox-electrolyte; activated carbon; leakage current; liquid crystal;

   Sammanfattning : As a consequence of a fast-paced technological evolution along with the acknowledgment of utilizing clean and renewable energy resources over fossil fuels, the importance of energy storage devices is widely recognized. The electrochemical capacitor (EC), commonly known as a supercapacitor or ultracapacitor, is an energy storage device that is already being used in portable consumer electronics, electrification of transportation, and grid-level applications. LÄS MER

7. 5. A Theoretical Investigation of the Nitrogen-Vacancy Center in Diamond as a Single Molecule Sensor and Qubit : Charging through Explicit Electron Donors

   Författare :Robin Löfgren; Andreas Larsson; Sven Öberg; Corina Etz; Fedor Jelezko; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Applied Physics; Tillämpad fysik;

   Sammanfattning : The NV-center in diamond is one of the most well researched defects to date. Since its discovery in the 1960’s, a large body of experimental as well as theoretical work have been produced, investigating its properties and applications. LÄS MER