Results 111 to 120 of about 40,201 (266)

PLL with MAF-based prefiltering stage: small-signal modeling and performance enhancement [PDF]

open access: yes
In three-phase applications, the synchronous reference frame phase-locked loop (SRF-PLL) is a standard PLL, which benefits from a simple structure and satisfactory performance under symmetrical and undistorted grid conditions.
Golestan, Saeed   +4 more
core   +2 more sources

Variable gradient-based phase locked loop for accurate frequency estimation of distorted grids

open access: yesScientific Reports
A variable gradient-based phase locked loop (VG-PLL) is developed for distorted grids. Firstly, the large-signal model of the synchronous reference frame phase locked loop (SRF-PLL) with harmonic disturbances is established, and the large-signal model ...
Xiaoben Lei   +5 more
doaj   +1 more source

Basic PLL Operation

open access: yes, 2008
A phase-locked loop (PLL) with frequency resolution in steps smaller than the reference oscillator is often wanted. Although this can be accomplished with a fractional-N PLL, in which the divide ratio is varied between N and N+1 at a defined rate, this ...
Agilent Eesof Eda
core  

Dual-loop control of transfer delay based PLL for fast dynamics in single-phase AC power systems

open access: yes, 2019
© The Institution of Engineering and Technology 2019. Phase-locked loop (PLL) is commonly utilised for AC power systems to detect phase and frequency.
Lu, Dylan Dah‐Chuan   +9 more
core   +1 more source

Dual‐Component Spidroin‐Based Hydrogels: A Mechanically Tunable Platform for 2D and 3D Cell Culture

open access: yesSmall, EarlyView.
A dual‐component recombinant spider silk hydrogel platform was developed by combining NT2RepCT with a bioactive vitronectin‐functionalized spidroin domain. The hydrogels self‐assemble under physiological conditions, exhibit tunable mechanical properties, and support 2D and 3D cell culture, providing a versatile platform for mechanobiological studies ...
Sanna Korpela   +8 more
wiley   +1 more source

The kinetics of COOH-PLL in mouse oocytes.

open access: yes, 2013
Mouse oocytes were exposed to PB1(-) supplement with FITC-labeled COOH-PLL (5% (w/v)). Green: FITC-labeled COOH-PLL.
Maki Kamoshita (501258)   +7 more
core   +1 more source

Smart mesoporous silica nanoparticles for precision cancer therapy: Tumor targeting and stimuli‐responsive controlled release

open access: yesSmart Molecules, EarlyView.
Smart mesoporous silica nanoparticles integrate tunable pore structures, molecular gates, targeting ligands, and stimuli‐responsive components to achieve controlled drug release for precision cancer therapy. This review highlights design principles, therapeutic applications, and future directions in immunotherapy, biodegradability, biosafety, and ...
Majdi Al‐Amili, Lei Lei, Zhu Jin
wiley   +1 more source

Single‐Vesicle Functional Nanophenotyping Reveals Heterogeneous PD‐L1 Accessibility in Triple‐Negative Breast Cancer

open access: yesSmall Methods, EarlyView.
Graphical Abstract. High‐speed atomic force microscopy enables real‐time, label‐free visualization of antibody interactions with individual extracellular vesicles. By quantifying binding frequency and dwell time, this approach reveals functional PD‐L1 accessibility that cannot be inferred from protein abundance alone, uncovering nanoscale heterogeneity
Reon Imakawa   +10 more
wiley   +1 more source

X-Band PLL Synthesizer [PDF]

open access: yes, 2006
This paper deals with design and realization of a PLL synthesizer for the microwave X−band. The synthesizer is intended for use as a local oscillator in a K−band downconverter.
Vagner, Petr, Kutin, Petr
core   +1 more source

Enhancing stability control of Phase-Locked loop in weak power grids

open access: yesInternational Journal of Electrical Power & Energy Systems
This paper analyzes the factors affecting the stability of phase-locked loops (PLLs) in weak power grids. By establishing a PLL model in weak power grids, it is found that line impedance, grid frequency disturbances, and output power all have an impact ...
Andong Liu, Hongbo Cao, Jun Liu
doaj   +1 more source

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