Results 91 to 100 of about 15,712 (299)

Impedance-Sum Stability Criterion for Power Electronic Systems With Two Converters/Sources

open access: yesIEEE Access, 2019
The impedance-ratio criterion is widely adopted for analyzing the small-signal stability of systems with cascaded power electronic converters. However, the impedance ratio is formed differently for different cascaded systems.
Qing-Chang Zhong, Xin Zhang
doaj   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

Effect of Parasitic Components in Voltage Drop and Design Consideration of the Switched Impedance Inverter

open access: yesIET Power Electronics
This paper investigates the impact of parasitic elements on the performance of switched impedance inverters. This work develops a non‐ideal impedance source inverter model, enabling more accurate predictions of voltage gain, current relationships, and ...
Mohsen Hasan Babayi Nozadian   +2 more
doaj   +1 more source

Comparison of Z-Source Inverter Fed Induction Motor with Traditional Source Inverter Systems [PDF]

open access: yes, 2011
: This study presents an impedance-source inverter fed (or Z-source converter) induction motor and its control characteristics compared with other traditional inverters.
P Sangameswara, Raju, K Ravi Chandrudu
core  

Y-source inverter

open access: yes, 2014
This paper introduces a new 3-phase Y-source inverter whose gain is presently not matched by classical impedance-network-based inverters operating at the same duty ratio. The proposed network uses a tightly coupled transformer with three windings.
Loh, Poh Chiang   +11 more
core   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Solar energy based impedance-source inverter for grid system

open access: yes, 2019
In this work, the fickleness of solar energy can be overcome by using Maximum Power Point Tracking algorithm (MPPT). Perturb and Observation (P&O) MPPT algorithm accomplish fast the maximum power point for rapid change of environmental conditions ...
Kirubakaran, D., Kamalakkannan, S.
core   +1 more source

Chirality and Organization of Adsorbates Modify Surface Phonon Dynamics

open access: yesAdvanced Functional Materials, EarlyView.
Chirality and molecular organization are shown to influence surface phonon dynamics in gold films. Time‐resolved Joule heating measurements reveal that ordered homochiral monolayers increase the Debye temperature and disordered layers reduce it, while ordered racemic controls have no effect.
Meital Ozeri   +6 more
wiley   +1 more source

An active impedance-source three-level T-type inverter with reduced device count

open access: yes, 2019
In this paper, a single-stage active impedance source three-phase T-type inverter is proposed with a reduced component count. Besides the inherent features of the three-level impedancesource inverters -shoot-through (ST) immunity, single-stage power ...
Zare, Firuz   +2 more
core   +1 more source

Machine Learning‐Assisted Inverse Design of Soft and Multifunctional Hybrid Liquid Metal Composites

open access: yesAdvanced Functional Materials, EarlyView.
A machine learning framework is presented for inverse design of synthesizable multifunctional composites containing both liquid metal and solid inclusions. By integrating physics‐based modeling, data‐driven prediction, and Bayesian optimization, the approach enables intelligent design of experiments to identify optimal compositions and realize these ...
Lijun Zhou   +5 more
wiley   +1 more source

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