Results 91 to 100 of about 845,516 (306)

High Power Active Filter using LC Tuned Filter.

open access: yesIEEJ Transactions on Industry Applications, 1992
Usually, to eliminate the harmonics of transmission lines, LC tuned filters are employed to let bypass these harmonic components. But the elimination ability is limited by its damping resistance. Therefore, active filters composed of high frequency PWM converters are desirable.
Isao Takahashi, Yasushi Omura
openaire   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Minimisasi Riak Arus Keluaran Penyearah Daya-besaran dengan Menggunakan Filter Aktif

open access: yesJournal of Mathematical and Fundamental Sciences, 2019
Sari. Suatu metode baru untuk meminimisasi riak arus keluaran penyearah daya besar dengan menggunakan filter aktif diusulkan dalam tulisan ini. Karena filter aktif terhubung parallel dengan beban, maka kapasitas arus filter aktif yang diperlukan menjadi
Pekik Argo Dahono
doaj  

Active Power Filter

open access: yes, 2014
The proliferation of power electronics-based devices and equipment has significantly affected the power quality of the grid, which changes its sinusoidal nature through adding harmonic distortion. Power electronics applications have penetrated several venues in our life which increase the share of non-linear loads compared with linear loads, and hence ...
Massoud, Ahmed M.   +2 more
openaire   +2 more sources

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

open access: yesFEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth   +6 more
wiley   +1 more source

Harmonic current extraction of shunt active power filter based on prediction current technique - Hysteresis PWM [PDF]

open access: yes, 2013
Due to the wide spread of power electronics equipment in modern electrical systems, the increase of the harmonics disturbance in the ac mains currents has became a major concern due to the adverse effects on all analysis and simulation using MATLAB ...
Abou Elzahab, EE   +4 more
core  

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

Single-amplifier integrator-based low power CMOS filter for video frequency applications [PDF]

open access: yes, 2002
“This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders.
Hill, C., Su, H.W., Sun, Y.
core   +1 more source

Rapid screening of staphylokinase protein variants using an unpurified cell‐free expression system

open access: yesFEBS Open Bio, EarlyView.
An unpurified cell‐free protein synthesis (CFPS) platform enables rapid functional screening of staphylokinase variants. Direct plasminogen‐activation assays performed in microplate format provide real‐time activity readouts, allowing rapid identification and ranking of variants with improved or reduced fibrinolytic activity without protein ...
Maria Tomková   +3 more
wiley   +1 more source

A kind of digital single-cycle control method of active power filter

open access: yesGong-kuang zidonghua, 2014
The paper analyzed working principle of active power filter, derived mathematical model of single-cycle control of three-phase three-wire active power filter. It combined digital single-cycle control and ip-iq harmonic current detection method to realize
ZHENG Feng, LI La
doaj   +1 more source

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