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This paper focuses on evaluating the effectiveness of a Cascaded H-bridge Multilevel Inverter (CHMI) based pulsed power supply for liquid food sterilization using pulsed electric field (PEF). The utilization of the CHMI allows the system to produce PEF with high stability, less heat and power consumption if compared to the conventional methods such as pulsed forming network (PFN) or transmission line...
Plasmas that are generated on and in liquids are generally the subject of pure research at universities; however, they have considerable practical potential for use in material processing, water purification, and sterilization. Their chief drawback is that they require a large device to generate in-water plasmas and a bulky power supply. If the device size and the volume of the power supply could...
This paper presents on evaluating a performance of Cascaded H-bridge Multilevel Inverter (CHMI) pulsed power supply, which can produce high-voltage output pulses and electric field strength for effective inactivation of microbes in liquid food sterilization process. The unique feature of the CHMI allows the system to produce bipolar square wave pulses with less power consumption and high stability...
The ATLAS experiment is designed to study the proton-proton collisions produced at the Large Hadron Collider (LHC) at CERN. Liquid argon sampling calorimeters are used for the identification and characteristics measurement of the electrons, photons and hadronic jets. Since the first collisions in 2010, the calorimeters operated almost optimally, playing a leading role in the discovery of the Higgs...
In this paper, a novel adaptive front-end circuit for measuring liquid conductivity is proposed. To deal with the chemically active environment around the sensor electrodes, the dc component of the excitation signal is set to be zero. The proposed system is able to generate a symmetrical excitation signal with a single power supply even when one terminal of the sensor electrode is grounded. The use...
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