in this paper, a new circuit is proposed for step-up z-source inverter based on qzsi (quasi-z-source inverter). the proposed topology inherits all advantages of the conventional topology. the proposed topology in comparison with conventional topology reduces the st (shoot-through) duty cycle by over 25% at the same voltage boost factor. theoretical analysis of the proposed qzsi in the st and no...

Bidirectional DC/DC converters are widely adopted in new energy power generation systems. Because of the low conversion efficiency and non-isolation for conventional, bidirectional photovoltaic storage complementary system, this paper proposes a isolation LLC converter topology, with compensating inductance system; it has excellent characteristics, such as wide input voltage range soft switchin...

Using single-molecule fluorescence microscopy and particle-tracking techniques, we elucidate the role DNA topology plays in the diffusion and conformational dynamics of crowded DNA molecules. We focus on large (115 kbp), double-stranded ring and linear DNA crowded by varying concentrations (040%) of dextran (10, 500 kDa) that mimic cellular conditions. By tracking the center-of-mass and measuri...

let  be a graded ring and  be a graded -module. we define a topology on graded prime spectrum  of the graded -module  which is analogous to that for , and investigate several properties of the topology.

in this paper, a pointwise pseudo-metric function on the l-realline is constructed. it is proved that the topology induced by this pointwisepseudo-metric is the usual topology.

It is expected that in the near future wireless sensor network (WSNs) will be more widely used in the mobile environment, in applications such as Autonomous Underwater Vehicles (AUVs) for marine monitoring and mobile robots for environmental investigation. The sensor nodes' mobility can easily cause changes to the structure of a network topology, and lead to the decline in the amount of transmi...

In hard-switched converters, the switching frequency is limited by switching losses and EMI problems. However, high-switching frequency is necessary to reduce the converter size. Hence, soft switching is imperative at high switching frequency to obtain good efficiency. Push–pull converter is a preferred topology at medium power level. This paper proposes a novel resonant transition topology for...

Mesh Topology Identification for Mass-Spring Models p. 50 A New Biomechanical Model Based Approach on Brain Shift Compensation p. 59 Real-Time Synthesis of Bleeding for Virtual Hysteroscopy p. 67 A Biomechanical Model of the Liver for Reality-Based Haptic Feedback p. 75 Image-Based Modelling of Soft Tissue Deformation p. 83 Individualized Geometric Model from Unorganized 3-D Points: An Applicat...

This application note describes the single-stage power factor correction (PFC) and presents the design guidelines of a 75W universal-input, single-stage PFC for LED lighting applications. Flyback converter topology controlled by the critical conduction mode control IC, FAN7530 is applied and several functions; such as CV/CC mode feedback circuits, cycle-by-cycle current limit, soft-starting fun...