Essays about: "electrical theory"

Showing result 21 - 25 of 115 essays containing the words electrical theory.

1. 21. The effectivity of vacuum impregnation with glycerol and secondary metabolites on electroporated arugula leaves to improve freezing stability.

   University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

   Author : Oscar de Kuijer; [2021]
   Keywords : Pulsed electric field PEF; Arugula; Electroporation; Secondary metabolites; Glycerol; Food engineering; Livsmedelsteknik; Technology and Engineering; Agriculture and Food Sciences;

   Abstract : Freeze damage is a common issue in many food items. The cellular dehydration caused by freezing can be prevented through addition of a cryoprotectant. Research has shown that it is possible to improve the freezing tolerance of plant materials by addition of cryoprotectants, which forms hydrogen bonds with water molecules. READ MORE

3. 22. Charging behaviour of the amine moiety at the air-water interface. A vibrational sum frequency study

   University essay from KTH/Yt- och korrosionsvetenskap

   Author : Mikael Gullstrand; [2021]
   Keywords : Langmuir monolayers; Vibrational Sum Frequency Spectroscopy; Fatty amine; Monovalent ions; Poisson Boltzmann theory; Langmuirmonolager; Vibrationssumfrekvensspektroskopi; Fettkedjeamin; Monovalenta joner; Poisson-Boltzmann-teori;

   Abstract : Laddningsbeteendet hos amingruppen vid ytgränsskiktet mellan vatten och luft har studerats under ändring av vattenfasens pH och NaCl-koncentration via den ickelinjära laserspektroskopiska tekniken, vibrationssumfrekvensspektroskopi (VSFS). Modellen som användes för ytan bestod av ett Langmuirmonolager av 1-docosanamin, en icke-löslig fettkedjeamin med NH2-gruppen riktad mot vattenfasen. READ MORE

4. 23. HETEROGENEOUS BATTERY SYSTEMS IN BATTERY EQUIPPED PASSENGER TRAINS

   University essay from Mälardalens högskola/Akademin för innovation, design och teknik

   Author : Emil Lundin; Johan Bergelin; [2021]
   Keywords : LabVIEW; MATLAB; Simulink; Control theory; Battery; Batteries; Li-ion; Heterogeneous batteries; LTO; NMC; Electronics; Electrical; Engineering; Simulation; Trains; SysML; UML; LTSpice; Design of experiments; DOE; Sensor technology; Railway; EV; Electrical vehicles;

   Abstract : The rise of batteries in the industry, especially Li-ion, is increasing rapidly. Li-ion battery systems are traditionally composed of a particular type of cell chemistry fit to the system needs. Due to the significant differences between chemistries, different cells have different attributes. READ MORE

5. 24. Simulating wave energy converter with twin generator torque converter in COMSOL

   University essay from Uppsala universitet/Institutionen för elektroteknik

   Author : Mashhur Billal; [2021]
   Keywords : Twin generator converter; dual generator; COMSOL; Savin; torque converter;

   Abstract : Uppsala University has been spending a lot of time and resources in developing wave energy converters. In the test site of Lysekil, a full-scale point absorbing buoy with its associated components have been tested. From the test, various new information were discovered. READ MORE

6. 25. Passive estimation of supply impedances at the meterpoint

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Zhanzhan Liu; [2021]
   Keywords : Impedance estimation; Loop theory; System fault detection; Impedansuppskattning; Loopteorin; Systemfelupptäckt;

   Abstract : Modern digital energy meters are installed between the distribution network and customers. Network operators and customers can use those meters to monitor electrical parameters, i.e., voltages and currents and to calculate statistics such as RMS value, fundamental Fourier component, etc. READ MORE