Results 71 to 80 of about 8,743,114 (397)
Heat absorption properties of ground material for solar chimney power plants [PDF]
, 2016 One of the major challenges to the widespread application of the solar chimney power plant is its low-power conversion efficiency because of the three technological processes involved.
Al-Azawiey, S. S., Hassan, S. B.
core +1 more source
Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer
FEBS Letters, EarlyView.Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani +4 more
wiley +1 more source
Technology for satellite power conversion [PDF]
The work is this reporting period was concentrated on electronically calibrating the bolometer detectors. The calibration is necessary for two reasons: first, the power delivered to the rectifying circuit must be known in order to choose a diode with the
Campbell, D. P. +2 more
core +4 more sources
Enhanced Grid-Connected Phase-Locked Loop Based on a Moving Average Filter
IEEE Access, 2020 Moving average filter (MAF)-based phase-locked loops (PLLs) have received considerable attention in recent years due to their attractive features. Indeed, they are able to completely eliminate the unwanted effect of harmonics, dc offset, and unbalanced ...
Cong Liu +3 more
doaj +1 more source
Nonlinear Dynamic Characteristics of Rod Fastening Rotor with Preload Relaxation
Energies, 2022 Compared to ordinary rotor, rod fastening rotor has the advantages of lighter weight, higher strength and easier installation, so it is widely used in gas turbine.
Li Zhao +3 more
doaj +1 more source
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
One-Shot Fault Diagnosis of Wind Turbines Based on Meta-Analogical Momentum Contrast Learning
Energies, 2022 The rapid development of artificial intelligence offers more opportunities for intelligent mechanical diagnosis. Fault diagnosis of wind turbines is beneficial to improve the reliability of wind turbines.
Xiaobo Liu, Hantao Guo, Yibing Liu
doaj +1 more source
Hybrid Power Harvesting for Increased Power Conversion Efficiency
IEEE Microwave and Wireless Components Letters, 2015 This work presents a cooperative power harvesting scheme, collecting power from two or more independent ambient energy sources into a single non-linear component. It is shown that the interaction of uncorrelated signals in a nonlinear device can greatly improve the conversion efficiency of the harvester.
Lorenz, Carlos +5 more
openaire +2 more sources
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Efficient low-power terahertz generation via on-chip triply-resonant nonlinear frequency mixing
, 2009 Achieving efficient terahertz (THz) generation using compact turn-key sources operating at room temperature and modest power levels represents one of the critical challeges that must be overcome to realize truly practical applications based on THz. Up to
A. W. Rodriguez +8 more
core +1 more source