Results 81 to 90 of about 7,572,768 (296)

Hysteresis band current control for a single phase z-source inverter with symmetrical and asymmetrical Z-network [PDF]

open access: yes, 2007
A Z-source Inverter has been proposed as a new topology in recent years. In this inverter an impedance network is placed between an inverter and a power source which provides both voltage buck and boost capabilities.
Firouzjaee, Jafar Adabi   +4 more
core   +1 more source

Advances in Bio‐Integrated Edge Computing Systems for Smart and Connected Health

open access: yesAdvanced Materials, EarlyView.
This review explores advances in bio‐integrated edge computing for healthcare, focusing on co‐designing computing, sensing, and energy strategies to overcome integration and power challenges for optimized, decentralized operation. ABSTRACT Recent advances in bio‐integrated healthcare technologies have enabled continuous, high‐resolution monitoring and ...
Gyuwon Kim   +4 more
wiley   +1 more source

Direct Torque Control using switching table for induction motor fed by Quasi Z-Source Inverter

open access: yes, 2017
Z-source inverters eliminate the need for front-end DC-DC boost converters in applications with limited DC voltage such as solar PV, fuel cell. Quasi Z-source inverters offer advantages over Z-source inverter, such as continuous source current and lower ...
Ragavan, K., Kiran, Aipathi Sai
core   +1 more source

A Retinal Matrix Stiffening Model Reveals FAK‐Dependent Mechanotransduction in Pericytes Underlies Vascular Destabilization

open access: yesAdvanced Materials, EarlyView.
In this study, we show that retinal matrix stiffness is increased in diabetic mice. Using engineered human vascular models with controlled matrix stiffness, we demonstrate that stiffening activates focal adhesion kinase (FAK) signaling in pericytes, suppresses Notch signaling, and disrupts vascular morphology.
Emily Warren   +6 more
wiley   +1 more source

Surface Functionalization Modulates Collective Cell Behavior Near Topological Defects Induced by Topographical Patterning

open access: yesAdvanced Materials Interfaces, EarlyView.
Strongly adhered cells align with concentric circular ridges and exhibit predominantly tangential motion, whereas weakly adhered cells fail to follow topographical guidance and display enhanced radial inward motion. ABSTRACT Living cells establish long‐range orientational order through collective alignment, giving rise to topological defects whose ...
Prasoon Awasthi   +4 more
wiley   +1 more source

Quasi-Y-source inverter

open access: yes, 2015
This paper introduces a new inverter topology called a “quasi-Y-source inverter”. The proposed inverter inherits all the advantages of the original Y-source inverter.
Loh, Poh Chiang   +8 more
core   +1 more source

Microscale 3D‐Printed Digital Strain Switches for Embedded Mechanical Computation

open access: yesAdvanced Materials Technologies, EarlyView.
Microscale 3D‐printed strain switches on flexible films convert deformation into native digital signals at geometry defined thresholds. A closed form model predicts switching from 3000 to 15 000 microstrain and is validated across 110 devices. Reliable ohmic closure and strain activated AND, OR, and XOR logic point toward low‐power mechanical ...
Regan Kubicek   +3 more
wiley   +1 more source

A common-ground switched-capacitor multilevel inverter with extended input range for renewable energy applications

open access: yesInternational Journal of Electrical Power & Energy Systems
Multilevel inverters (MLIs) have emerged as a prominent front-end converter solution for renewable energy generation like photovoltaic (PV), fuel cell and wind turbine, owing to their low total harmonic distortion (THD) and high conversion efficiency ...
Zaiyu Chen   +5 more
doaj   +1 more source

A New CUK-Based Z-Source Inverter

open access: yes, 2018
This paper proposes a new three-switch single-phase Z-source inverter (ZSI) based on a CUK converter, which is named a CUK-based ZSI. This topology has characteristics of buck‒boost capability and dual grounding. In addition, the voltage gain of proposed
Wei Tang, Baocheng Wang
core   +1 more source

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