Results 41 to 50 of about 43,626 (351)

Comparison between flying capacitor and modular multilevel inverter [PDF]

open access: yes, 2009
The paper describes the operational principle of flying capacitor and modular multilevel inverters. The detailed discussions of dc link capacitors voltage balancing methods for both inverters are given in order to enable fair comparison. The causes of dc
Adam, G.P.   +5 more
core  

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

open access: yesFEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson   +7 more
wiley   +1 more source

Research of 350 km/h CEMUs Auxiliary Converter Parallel Control

open access: yes机车电传动, 2019
The auxiliary converter of the 350 km/h CEMUs adopts wireless parallel technology, which improves the power supply redundancy. The auxiliary converter was controlled with PQ droop control.
Yongfeng SONG
doaj  

DC-DC Boost Converter with Reduced Switching Losses in Wide Range of Voltage Gain

open access: yesEnergies, 2023
This article presents the results of research on a new topology of a DC-DC converter in which switching losses are reduced by an auxiliary switching circuit (ASC).
Andrzej Mondzik   +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

open access: yesFEBS 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   +3 more
wiley   +1 more source

A circulating current free medium frequency DC-DC converter based on auxiliary transformer

open access: yes电力工程技术
DC-DC converter is the core equipment for connecting distributed photovoltaic power generation to be connected to the medium voltage DC grid. A circulating current free medium frequency DC-DC converter with auxiliary transformer is proposed in this paper.
Xuming LIU, Xiaokun HE, Wu CHEN
doaj   +1 more source

A new soft‐switching high step‐down DC‐DC converter for voltage regular module application

open access: yesIET Circuits, Devices and Systems, 2022
This study proposes a high step‐down DC‐DC converter with minimum elements. In the proposed converter, soft switching condition is provided with only one auxiliary switch, which simplifies the structure of the converter.
Mahmood Vesali   +2 more
doaj   +1 more source

Boundary-mode operation of the boost converter for thermoelectric generator maximum power tracking [PDF]

open access: yes, 2014
This article has been made available through the Brunel Open Access Publishing Fund.Performance-favourable and noteworthy characteristics of the Boost converter are reported, when the latter operates in Maximum Power Tracking (MPT) mode, while fed from a
Theodoridis, M
core  

Sensorless control of deep-sea ROVs PMSMs excited by matrix converters [PDF]

open access: yes, 2005
The paper reports the development of model-based sensorless control methodologies for driving PMSMs using matrix converters. In particular, experimental results show that observer-based state-estimation techniques normally employed for sensorless control
Bhangu, B S   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy