Results 251 to 260 of about 14,905,897 (294)
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A novel topology of solid state transformer
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC), 2010This paper introduces a new topology for implementing a solid state transformer. The advantages of the proposed topology include a reduced number of SiC MOSFETs, lower cost and smaller switching losses. Simulation results are given to demonstrate the performance of the proposed topology.
A. Abedini, T. Lipo
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Solid state of aceclofenac: characterization, transformation
Journal of Pharmaceutical Investigation, 2012The objective of this work was to investigate the existence of polymorphs and pseudopolymorphs of aceclofenac which is a peripherally acting, non-steroidal anti-inflammatory analgesic with anti-inflammatory, antiarthritic and antipyretic activities.
Jung Soon Song, Young Taek Sohn
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A solid-state relay for transformer switching
International Journal of Electronics, 1986A static relay, which can distinguish the magnetizing inrush current from the short-circuit current of a transformer is suggested. This eliminates the use of the desensitizing arrangement or the costly harmonic-current-restraint relay but preserves the inherent features of an over-current relay and the advantages of a static relay.
M. S. JAMIL-ASGHAR +2 more
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Solid-State Transformations in Weldments
1993Abstract Solid-state transformations occurring in a weld are highly nonequilibrium in nature and differ distinctly from those experienced during casting, thermomechanical processing, and heat treatment. This article focuses on welding metallurgy of fusion welding of steels and highlights the fundamental principles that form the basis of ...
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Solid-state transformer topology selection
2009 IEEE International Conference on Industrial Technology, 2009This paper considers the design criteria of the solid-state transformer circuit, with special focus on the high voltage side. Three plausible multilevel converter configurations are identified and compared in terms of cost and voltage balance requirements.
Wim van der Merwe, Toit Mouton
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Solid State Phase Transformations
2004The crystal structure of a metal is not necessarily stable at all temperatures below the melting temperature. This is due to the fact that the solid always assumes the crystal structure with the lowest Gibbs free energy, even if there are other crystal structures with a slightly higher free energy.
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Crystal to crystal transformation in the solid state
CrystEngComm, 2004Either co-milling or simple mixing of benzoquinone (BQ) and diol crystals of varied melting point temperature produces adduct crystals through very slow and gradual molecular diffusion processes in the solid state. Their formation process was compared and discussed based on the crystal structures of the starting diols and the diol–BQ adducts.
Reiko Kuroda +3 more
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Kinetics of polymorphic solid-state transformations
Journal of the Chemical Society, Faraday Transactions 2, 1984Solid-state polymorphic transformations can have a profound influence on the processing and storage of some crystalline powders. Using classical models of nucleation and growth a framework is developed which highlights the importance of crystal size on the transformation rate.
Peter T. Cardew +2 more
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Solid-State Phase Transformations and Reactions
2012In Chapters 14 and 15, we discussed grain boundaries (GBs) and phase boundaries (PBs), respectively. Those two chapters described the interfaces and crystal defects. In Chapter 24, we then examined how the movement of GBs can lead to sintering, grain growth, and densification.
C. Barry Carter, M. Grant Norton
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