Results 41 to 50 of about 139,680 (346)

Comparison of fat suppression strategies in 3D spiral coronary magnetic resonance angiography

open access: yes, 2002
PURPOSE: In the present study, the impact of the two different fat suppression techniques was investigated for free breathing 3D spiral coronary magnetic resonance angiography (MRA).
Börnert, P.   +9 more
core   +1 more source

Analysis and Suppression of Harmonic Resonance in Photovoltaic Grid-Connected Systems

open access: yesEnergies
In photovoltaic grid-connected systems, the interaction between grid-connected inverters and the grid may cause harmonic oscillation, which severely affects the normal operation of the system.
Tong Zhu   +7 more
doaj   +1 more source

Understanding and suppressing backscatter in optical resonators

open access: yesOptica, 2022
Optical cavities have found widespread use in interfacing to quantum emitters. Concerns about backreflection and resulting loss, however, have largely prevented the placement of optics such as lenses or modulators within high-finesse cavities.
Matt Jaffe   +5 more
openaire   +2 more sources

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

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

Stability Assessment and Current Controller Design for Multiple Grid-Connected Inverters Under LC Grid Impedance and Grid Distortions

open access: yesEnergies
The increasing global energy demand is driving the deployment of renewable energy in the electrical power infrastructure, which emphasizes the critical importance of grid-connected inverters (GCIs).
Sung-Dong Kim   +4 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Suppression of ferromagnetic resonance overvoltage in CVT and feature analysis of secondary voltage under different faults

open access: yesZhejiang dianli, 2023
Aiming at the problem of overvoltage caused by ferromagnetic resonance fault of 220 kV CVT (capacitive voltage transformer) and the problem of false alarm of 3U0 monitoring device, a simulation model is established based on actual parameters, and the ...
LI Bowen   +5 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Comparison of Respiratory Motion Suppression Techniques for 4D Flow MRI

open access: yes, 2017
Purpose: The purpose of this work was to assess the impact of respiratory motion and to compare methods for suppression of respiratory motion artifacts in 4D Flow MRI.
Ebbers, Tino   +5 more
core   +1 more source

Study on the Resonance Characteristics and Active Damping Suppression Strategies of Multi-Inverter Grid-Connected Systems Under Weak Grid Conditions

open access: yesEnergies
When a multi-inverter grid-connected system is influenced by the parasitic parameters of LCL-type inverters and the impedance of the connected system’s lines, its resonance characteristics become more complex and difficult to predict.
Tianhao Hou, Yunhao Jiang, Zishuo Cai
doaj   +1 more source

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