This paper presents a single phase power factor correction (PFC) power supply topology based on a non-cascading connection of a current-fed full-bridge converter and a buckboost converter, both converters being operated in continuous conduction mode (CCM). Due to the reduced redundant processing of power, the non-cascading structure can inherently achieve a higher overall efficiency compared to...

In order to better understand the dynamics of acute leukemia, and in particular to find theoretical conditions for the efficient delivery of drugs in acute myeloblastic leukemia, we investigate stability of a system modeling its cell dynamics. The overall system is a cascade connection of sub-systems consisting of distributed delays and static nonlinear feedbacks. Earlier results on local asymp...

Cell communication is essential for eukaryotic development, but our knowledge of molecules and mechanisms required for intercellular communication is fragmentary. In particular, the connection between signal sensing and regulation of cell polarity is poorly understood. In the filamentous ascomycete Neurospora crassa, germinating spores mutually attract each other and subsequently fuse. During t...

We studied the involvement of the ERK cascade in human chorionic gonadotropin (hCG)-induced steroidogenesis by primary cultures of immature rat Leydig cells. Our findings indicate that protein kinase A and protein kinase C function as upstream kinases in connection with transduction of the signal from the gonadotropin receptor to the ERK cascade. These MAPKs enhance the stimulatory effects of h...

The paper presents a wideband nine-port reflectometer realized as cascade connection of six- and five-port reflectometers. It is shown that such solution allows for convenient adjustment circuits’ parameters in order to provide significantly reduced measurement uncertainty with respect other reported Simultaneously, the proposed network features simple flexible design. For experimental verifica...

Abstract Photomultiplier tubes (PMTs) are widely used underwater in large-scale neutrino experiments. As a hollow glass spherelike structure, implosion is unavoidable during long-term operation under large water pressure. There possibility of cascade to neighbor PMTs due shockwave. Jiangmen Underground Neutrino Observatory designed protection structure for each 20-inch PMT, consisting top cover...

We introduce a class of multidimensional linear systems with evolution along a free semigroup. The transfer function for such a system is a formal power series in noncommuting indeterminates. Standard system-theoretic properties (the operations of cascade/parallel connection and inversion, controllability, observability, Kalman decomposition, state-space similarity theorem, minimal state-space ...

We discuss a stochastic closure for the equation of motion satisfied by multiscale correlation functions in the framework of shell models of turbulence. We present a plausible closure scheme to calculate the anomalous scaling exponents of structure functions by using the exact constraints imposed by the equation of motion. We present an explicit calculation for fifth-order scaling exponent by v...

This paper has three objectives. The first objective is to provide a simpler proof concerning a sufficient condition due to Ferfera under which bilinearity is preserved for cascade interconnections. The next objective is to provide a specific counterexample to show that this condition does not apply to the feedback connection. The final objective is to show that thewell-known correspondence bet...

This paper presents asymmetrical cascaded multilevel inverter (ACMLI) approach for high voltage and high power output applications. It is based on the cascade connection of the H-bridge inverter cells. Now ever by the supplies which are in GP with different ratios like 2,3,etc. The proposed configuration is shown for 27 level inverters with symmetrical step control, optimization angle control a...