Results 81 to 90 of about 11,585,015 (293)
Low‐ and High‐Frequency Noise in LEDs
physica status solidi (a)Light‐emitting diode (LED) degradation is usually associated with defects in the active region. Whereby the noise analysis can be a strong instrument to reveal them. The results of optical noise measurements for commercially available blue LED samples in a wide frequency range from kHz to MHz are reported.
Danylo Bohomolov +2 more
openaire +2 more sources
Noise Annoyance and Perception by Low-Frequency Noise in Students
Archives of Occupational Health, 2019 Background: Low-frequency noise as a detrimental occupational and environmental factor which can cause noise annoyance. In addition to noise, factors such as sensitivity and awareness of adverse health effects of noise seem to play an important role in ...
Siavash Etemadinezhad +4 more
doaj
, 1987 We describe the design, schematics, and performance of a very low noise FET cascode input amplifier. This amplifier has noise performance of less than 1.2 nV/Hz and 0.25 fA/Hz over the 500 Hz to 50 kHz frequency range.
Jefferts, S.R.; Walls, F.L.
core +1 more source
Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
wiley +1 more source
Design and analysis of high performance low noise oscillators and phase lock loops
, 2010 The design and implementation of high purity, high speed and power efficient clock generation Integrated Circuits continue to be one the greatest challenges facing IC designers today. In order to address this challenge, this thesis considers the modeling
Ke, Li
core +1 more source
New strategies for low noise, agile PLL frequency synthesis [PDF]
, 2009 Phase-Locked Loop based frequency synthesis is an essential technique employed in wireless communication systems for local oscillator generation.
Wang, H.
core
The effect of wavy leading edges on aerofoil-gust interaction noise [PDF]
, 2013 High-order accurate numerical simulations are performed to investigate the effects of wavy leading edges (WLEs) on aerofoil–gust interaction (AGI) noise.
Lau, A.S.H., Kim, J.W., Haeri, S.
core +1 more source
FEBS Open Bio, EarlyView.Hyperosmotic stress triggers the relocation of the CFIm complex from the nucleus to the cytoplasm. This shift creates a nuclear ‘stoichiometric bottleneck’, limiting CFIm availability for mRNA processing. Consequently, specific mRNAs like NUDT21 and DICER1 undergo targeted 3′UTR shortening, demonstrating how spatial protein dynamics drive rapid ...
Hitomi Soumiya +2 more
wiley +1 more source
Low Frequency Noise and Its Assessment and Evaluation
Archives of Acoustics, 2013 The main aim of this paper is to present recent knowledge about the assessment and evaluation of low frequency noise and infrasound close to the threshold of hearing and the potential effects on human health.
Stanislav ZIARAN
doaj
FEBS Open Bio, EarlyView.Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas +6 more
wiley +1 more source