Results 41 to 50 of about 166,438 (263)

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Research of double closed-loop control strategy for shunt active power filter

Gong-kuang zidonghua, 2013
The paper analyzed implementation principle of double closed-loop control strategy for shunt active power filter. In view of problems that PI control cannot track AC signal without static error and repetitive control has slow dynamic response speed, the ...
REN Zi-hui, ZHU Hui, LIU Wei, XU Sheng-long   +3 more
doaj   +1 more source

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

FEBS 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

Research of deadbeat control of three-level paralleling active power filter

Gong-kuang zidonghua, 2013
Working principle of three-level paralleling active power filter based on switching function was introduced, mathematical model for the active power filter was established, and a deadbeat control scheme for the active power filter was proposed.
SHI Li-ping, WANG Jing-bo, ZHU Ning-tan, ZHAI Fu-jun   +3 more
doaj  

Design of active power filter for narrow-band power line communications

MATEC Web of Conferences, 2018
In power line communication (PLC), couplers such as coupling transformers and band-pass matching coupling circuits are usually required for coupling, band-pass filtering, and impedance matching.
Wang Bingting, Cao Ziping
doaj   +1 more source

Performance evaluation of Adaptive Tabu search and Genetic Algorithm optimized shunt active power filter using neural network control for aircraft power utility of 400 Hz

Journal of Electrical Systems and Information Technology, 2018
This paper proposes a novel artificial neural network (ANN) control based shunt active power filter (APF) applied in aircraft power utility of 400 Hz. The model of shunt active power filter has been optimized using Adaptive Tabu search (ATS) algorithm ...
Saifullah Khalid
doaj   +1 more source

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

FEBS 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, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

Research of three-level active power filter based on fuzzy control

Gong-kuang zidonghua, 2013
The paper proposed a control scheme of three-level active power filter based on ip-iq harmonic current detection, fuzzy PI current control and space vector pulse width modulation. It established a mathematical model of the three-level active power filter,
LIU Jian-hua, LIANG Hua-yang, SONG Zu-lei, TANG Quan, LI Hui-mi   +4 more
doaj  

Active Power Filter

, 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., Ahmed, Shehab, AbdelKhalik, Ayman S.   +2 more
openaire   +2 more sources

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

FEBS 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, Veronika Hovanová, Jiri Damborsky, Erik Sedlák   +3 more
wiley   +1 more source