Results 81 to 90 of about 5,431,466 (351)

Research of closed-loop voltage and speed regulation method based on six-pulse-wave AC/AC frequency converter

open access: yesGong-kuang zidonghua, 2013
In view of problem of bigger speed difference between frequency levels in high frequencies in speed regulation technology of six-pulse-wave AC/AC frequency converter, the paper proposed a closed-loop voltage and speed regulation method based on six-pulse-
LI Gao-ju, DU Qing-na
doaj  

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

DC-DC Boost Converter with Constant Output Voltage for Grid Connected Photovoltaic Application System [PDF]

open access: yes, 2010
The main purpose of this paper is to introduce an approach to design a DC-DC boost converter with constant output voltage for grid connected photovoltaic application system.
Chan, Pui Weng
core  

A maximum power point tracking for a photovoltaic system based on optimum sinusoidal modulated control pulses [PDF]

open access: yes, 2014
Photovoltaic systems have grown rapidly in the last few decades. This growth has enhanced research about this technology, focusing on reducing cost and improving efficiency. Maximum power point tracking (MPPT), which increases the overall efficiency of a
Alqarni, M, Darwish, MK
core   +1 more source

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

Development of Mine-used Feedback Type Frequency Converter with Flameproof and Intrinsic Safety

open access: yesGong-kuang zidonghua, 2012
In view of problems that two-quadrant frequency converter can not feedback energy and design selection of braking resistant in two-quadrant frequency converter + resistant braking unit may not match with field conditions, a mine-used feedback type ...
YANG Wei-yi
doaj  

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  

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

Design of vibration isolation parameters of converter for high-speed double-deck EMU trains

open access: yes机车电传动, 2022
A finite element model of the double-deck EMU trains including the on-board traction converter was established, and the main low-order elastic modes of the car body were calculated and analyzed separately when the converter equipment adopted rigid ...
TAO Guidong, SUN Weiguang
doaj  

Traveling-wave tube circuit simplifies microwave relay [PDF]

open access: yes, 1965
Circuit with a sawtooth-modulated traveling-wave tube, which acts as a frequency converter and as an amplifier, simplifies microwave transmission.
Allen, W. K.   +2 more
core   +1 more source

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