Results 81 to 90 of about 11,040 (297)

The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability

open access: yes, 2013
This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC).
Critchley, R   +6 more
core   +1 more source

Variable-Angle Phase-Shifted PWM for Multilevel Three-Cell Cascaded H-bridge Converters [PDF]

open access: yes, 2017
Multilevel cascaded H-bridge converters have become a mature technology for applications where high-power medium ac voltages are required. Normal operation of multilevel cascaded H-bridge converters assumes that all power cells have the same dc voltage ...
Freire Macías, Emilio   +6 more
core   +1 more source

Integrating Spatial Proteogenomics in Cancer Research

open access: yesAdvanced Science, EarlyView.
Xx xx. ABSTRACT Background: Spatial proteogenomics marks a paradigm shift in oncology by integrating molecular analysis with spatial information from both spatial proteomics and other data modalities (e.g., spatial transcriptomics), thereby unveiling tumor heterogeneity and dynamic changes in the microenvironment.
Yida Wang   +13 more
wiley   +1 more source

New Approaches to Circulating Current Controllers for Modular Multilevel Converters

open access: yesEnergies, 2017
In the next years, modular multilevel converters (MMCs) are going to be a next generation multilevel converters for medium to high voltage conversion applications, such as medium voltage motor drives, medium voltage flexible AC transmission systems ...
Miguel Moranchel   +3 more
doaj   +1 more source

A Review of Modular Multilevel Converters for Stationary Applications

open access: yesApplied Sciences, 2020
A modular multilevel converter (MMC) is an advanced voltage source converter applicable to a wide range of medium and high-voltage applications. It has competitive advantages such as quality output performance, high modularity, simple scalability, and ...
Yang Wang   +5 more
doaj   +1 more source

Impact of converter interface type on the protection requirements for DC aircraft power systems [PDF]

open access: yes, 2012
The utilization of converter interfaces has the potential to significantly alter the protection system design requirements in future aircraft platforms.
Burt, Graeme   +3 more
core   +1 more source

Single‐Crystal PZT‐Driven Organic Piezo‐Phototronic Adaptive Transistors Toward Advanced Spatiotemporal Visual Computing

open access: yesAdvanced Science, EarlyView.
Here, we propose a single‐crystal PZT‐based piezo‐phototronic organic adaptive memory transistor (OAMT), achieving a record memory window capacity factor (γ) of 0.87 at a low SS of 200 mV/decade via efficient multi‐field control. The device achieves a high recognition accuracy ∼ 90% in neuromorphic simulations, demonstrates robust fault tolerance under
Chenhao Xu   +8 more
wiley   +1 more source

Photo‐Responsive Room‐Temperature Phosphorescent Films Exhibiting Photochromism and Time‐Dependent Phosphorescent Colors for Multilevel Anti‐Counterfeiting

open access: yesAdvanced Science, EarlyView.
A series of photo‐responsive polymers are prepared by a facile one‐pot in situ synthesis strategy, where RTP modules and photochromic units are systematically integrated into one polymer system. The triplet‐singlet Förster resonance energy transfer (TS‐FRET) between the donor and acceptor enables the material to exhibit time‐dependent phosphorescence ...
Ziyi Bai   +5 more
wiley   +1 more source

Design Considerations for a Voltage-Boosting DC-AC Modular Multilevel Converter [PDF]

open access: yes, 2015
The Modular Multilevel Converter (M2C) is a relatively recent addition to the family of multilevel power converters. This paper describes the topology, dynamic phasor modeling, and operation of a voltage boosting DC-AC Modular Multilevel Converter.
Ramírez Prieto, Dionisio   +3 more
core   +1 more source

Peroxidase‐Mimicking Nanozymes for Rapid Detection of Infectious Diseases

open access: yesAdvanced Science, EarlyView.
Peroxidase‐mimicking nanozymes (PMNs) have emerged as robust and versatile materials for rapid infectious disease diagnostics. This review highlights the rational design and controlled synthesis of PMNs, summarizes key biomarkers relevant to infectious diseases, examines their integration into diverse rapid detection platforms, and highlights ...
Shikuan Shao   +5 more
wiley   +1 more source

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