Results 31 to 40 of about 40,854 (262)

Nonlinear photon emission and discharge mode transitions in HVDC needle–needle electrodes: Insights from UV photon spot distribution mapping [PDF]

AIP Advances
This study proposes a methodology for the development of ultraviolet (UV) spot distribution mapping with probabilistic processing, with the objective of addressing the challenges associated with the monitoring of partial discharge (PD) in high-voltage ...
Zhiliang Yin, Wei Ma, Xiuhai Wu, Jinwei Lv, Xiang Shen, Rui Qiu   +5 more
doaj   +1 more source

Boosting the Electrostatic MEMS Converter Output Power by Applying Three Effective Performance-Enhancing Techniques

Micromachines, 2023
This current study aims to enhance the electrostatic MEMS converter performance mainly by boosting its output power. Three different techniques are applied to accomplish such performance enhancement.
Mona S. Salem, Abdelhalim Zekry, Mohamed Abouelatta, Ahmed Shaker, Marwa S. Salem, Christian Gontrand, Ahmed Saeed   +6 more
doaj   +1 more source

Comparative feasibility study of partial power converter for interfacing battery energy storage into power system of future circular collider [PDF]

Proceedings of the Estonian Academy of Sciences
The recent appearance of partial power converters has shown their potential to significantly improve the efficiency and power density of power electronic systems. However, their feasibility in different applications is not sufficiently studied.
Andrii Chub, Joosep Niinemägi, Manuel Colmenero, Davide Aguglia   +3 more
doaj   +1 more source

Evaluation and Comparison of DC-DC Power Converter Variations in Solar Panel Systems Using Maximum Power Point Tracking (MPPT) Flower Pollination Algorithm (FPA) Control [PDF]

E3S Web of Conferences, 2020
Maximum Power Point Tracking (MPPT) is a method that can be used to optimize the electrical power output from solar panels. The performance of the MPPT method on solar panel systems can be influenced by many variables.
Luthfansyah Mohammad, Suyanto Suyanto, Bakarr Momodu Bangura Abu   +2 more
doaj   +1 more source

Single‐pole tripped emergency control and multistep power recovery strategy for a symmetric bipolar VSC‐HVDC system

IET Generation, Transmission & Distribution, 2022
In a symmetric bipolar voltage sourced converter‐high voltage direct current system (VSC‐HVDC) with a conventionally independent power controller, a single‐pole converter unit malfunction or conversion capacity limitation results in a power imbalance for
Peiqian Guo, Yirun Ji, Zhichang Yuan, Yuming Zhao, Aijun Wu, Guowei Liu   +5 more
doaj   +1 more source

Power Performance Analysis According to the Configuration and Load Control Algorithm of Power Take-Off System for Oscillating Water Column Type Wave Energy Converters

Energies, 2020
A power take-off (PTO) system for an oscillating water column (OWC) wave energy converter comprises a turbine-generator-power converter. In this study, only the topologies of the power converter that affect the load control algorithm are compared.
Roh Chan, Kil-Won Kim, Ji-Yong Park, Se-Wan Park, Kyong-Hwan Kim, Sang-Shin Kwak   +5 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

A step-down nesting-type ac–ac converter combined with voltage equalizers and switched-capacitor simple converters

Energy Reports, 2020
In this paper, we present an inductor-less direct ac–ac converter with improved nesting-type topology. Unlike existing direct ac–ac converters, the proposed ac–ac converter combines a voltage equalizer and a switched-capacitor (SC) simple converter ...
Kei Eguchi, Ratanaubol Rubpongse, Akira Shibata, Takaaki Ishibashi, Frazin Asadi   +4 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Design of mine cascade converter with wide input voltage range

Gong-kuang zidonghua, 2022
The converter used in the power supply has problems of low voltage gain, high voltage stress of power tube, non-electrical isolation and complex control.
LIU Yangqing, ZHOU Yuan
doaj   +1 more source