Results 131 to 140 of about 9,973,806 (349)

Preliminary Exploration of 2025 Iberian Peninsula Widespread Power Outage and Its Implications for Power Equipment Suppliers

Kongzhi Yu Xinxi Jishu
On April 28, 2025, a large-scale power outage occurred across the Iberian Peninsula and parts of southern France, seriously affecting local social production and people's normal lives.
ZHANG Wuqi, ZHANG Zhixue, HU Liang, LI Hongbo, XU Huating   +4 more
doaj  

Joint Time and Frequency Dissemination Network Over Delay-Stabilized Fiber Optic Links

IEEE Photonics Journal, 2015
A precise fiber-based time and frequency dissemination scheme for multiple users with a tree-like branching topology is proposed. Through this scheme, ultrastable signals can be easily accessed online without affecting other sites.
Wei Chen, Qin Liu, Nan Cheng, Dan Xu, Fei Yang, Youzhen Gui, Haiwen Cai   +6 more
doaj   +1 more source

Temperature-stable Gunn-diode oscillator [PDF]

, 1975
Oscillator consisting of Gunn diode embedded in coaxial circuit has excellent temperature stability and low fabrication costs as compared with automatic-frequency-control crystal ...
Dengenford, J. E., Dickens, L. E., Maki, D. W., Newman, B. A.   +3 more
core   +1 more source

Self-tuning virtual synchronous generator control for improving frequency stability in autonomous photovoltaic-diesel microgrids

, 2018
This paper investigates the use of a virtual synchronous generator (VSG) to improve frequency stability in an autonomous photovoltaic-diesel microgrid with energy storage.
Rongliang Shi, Xing Zhang, Chao Hu, Haizhen Xu, J. Gu, W. Cao   +5 more
semanticscholar   +1 more source

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

FEBS 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, Mackenzie K Herroon, Shane Mecca, Laimar C Garmo, Jacob Lindquist, Shrila Rajendran, Steve M. Patrick, Izabela Podgorski   +7 more
wiley   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS 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, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Realization of a pulsed optically pumped Rb clock with a frequency stability below [Formula: see text]. [PDF]

Sci Rep, 2023
Gozzelino M, Micalizio S, Calosso CE, Belfi J, Sapia A, Gioia M, Levi F.   +6 more
europepmc   +1 more source

Effect of laser frequency noise on fiber-optic frequency reference distribution [PDF]

The effect of the linewidth of a single longitude-mode laser on the frequency stability of a frequency reference transmitted over a single-mode optical fiber is analyzed. The interaction of the random laser frequency deviations with the dispersion of the
Logan, R. T., Jr., Lutes, G. F., Maleki, L.   +2 more
core   +1 more source

Cryogenic masers [PDF]

, 1982
Various factors affecting the frequency stability of hydrogen masers are described and related to maser design parameters. The long-term frequency stability of a hydrogen maser is limited by the mechanical stability of the cavity, and the magnitudes of ...
Berlinsky, A. J., Hardy, W. N.
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source