the michelsen stability and multiphase flash calculation by direct minimization of gibbs free energy of the system at constant temperature and pressure, was used for systems containing gas hydrates. the solid hydrate phase was treated as a solid solution. the fugacities of all components of the hydrate phase were calculated as a function of compositions by the rearranged model of van der waals ...

Jaewan Kwon, Sang-Don Park, You-Hyun Jeon, Hee-Yeon Jung, Ji-Young Choi, Sun-Hee Chan-Duck Kim, Yong-Lim Jang-Hee Cho, Jeong-Hoon Lim. Korean J Transplant 2022;36:235. https://doi.org/10.4285/ATW2022.F-3757

This paper describes a general framework for the retiming of sequential circuits using either single or multi-phase clocks and both edge-ttiggered flip-flops and level-sensitive latches. This framework is compared with previously published work on retiming. The potential for finding optimal retimings within this framework is discussed, and a set of heuristic retim­ ing methods is presented. Fin...

This paper proposes a hybrid carrier based space vector modulation suitable for multiphase multilevel inverters. Multiphase multilevel inverters are controlled by this hybrid modulation to provide multiphase variable voltage and variable frequency supply. The proposed modulation inherits the features of fundamental frequency modulation and carrier based space vector modulation strategies. The m...