Results 41 to 50 of about 862,186 (311)

Flow structure and unsteady characteristics of fountain flow induced by dual impinging jets

Kongqi donglixue xuebao
The flow-field structure and mechanical characteristics of dual impinging jets are critical issues during the takeoff and landing phases of aircraft. However, the unsteady characteristics of the fountain effect induced by dual impinging jets have not yet
Yifan Zhao, Rongping Zhang, Rongping Zhang, Yuxiang Liang, Yuxiang Liang, Jiaxi Zhao, Jiaxi Zhao, Xunnian Wang   +7 more
doaj   +1 more source

RTS noise impact in CMOS image sensors readout circuit [PDF]

, 2009
CMOS image sensors are nowadays widely used in imaging applications even for high end applications. This is really possible thanks to a reduction of noise obtained, among others, by Correlated Double Sampling (CDS) readout.
P. Magnan, P. Martin-Gonthier, Magnan, Pierre, Martin-Gonthier, Philippe   +3 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Low frequency noise enhances cortisol among noise sensitive subjects during work performance

, 2002
Salivary free cortisol concentration, rated stress and annoyance were determined in 32 subjects before, during and after carrying out a battery of performance tasks for 2 hours during exposure to ventilation noise, with dominant low frequencies (low ...
Evans, P., Rylander, R., Hucklebridge, F., Clow, A., Persson Waye, K., Bengtsson, J.   +5 more
core   +1 more source

Asymptotic stochastic characterization of phase and amplitude noise in free-running oscillators [PDF]

, 2011
Starting from the definition of the stochastic differential equation for amplitude and phase fluctuations of an oscillator described by an ordinary differential equation, we study the associated Fokker–Planck equation by using tools from stochastic ...
Bonani, Fabrizio, FABRIZIO BONANI, Traversa, Fabio Lorenzo, FABIO L. TRAVERSA   +3 more
core   +1 more source

Design and Analysis of Low-Power Ultra-Wideband CMOS Variable-Gain LNAs With Sub-2.5 dB NF_min Using Coupled Microstrip-Line Neutralization and AGF-Inductor

IEEE Access
This study reports low power-dissipation (PD) and low noise-figure (NF) ultra-wideband CMOS variable-gain amplifiers (VGAs). VGA1 and VGA2 use coupled microstrip-line (CL) neutralization with an adjustable-gain-flatness inductor and multiple inductive ...
Jin-Fa Chang
doaj   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Multi-Size-Mesh, Multi-Time-Step Algorithm for Noise Computation on Curvilinear Meshes [PDF]

, 2013
Aeroacoustic problems are often multi-scale and a zonal refinement technique is thus desirable to reduce computational effort while preserving low dissipation and low dispersion errors from the numerical scheme.
CORRE, Christophe, LE GARREC, Thomas, GLOERFELT, Xavier, Corre, Christophe Eric   +3 more
core   +1 more source

Noise Reduction of Low Count STEM-EDX Data by Low-rank Regularized Spectral Smoothing

, 2022
Statistically weighted principal component analysis (wPCA) is widely used to reduce the noise of scanning transmission electron microscopy-energy-dispersive X-ray (STEM-EDX) spectroscopy data.
Keisuke, Ozawa
core   +1 more source

A 35 nV/√Hz Analog Front-End Circuit with Adjustable Bandwidth and Gain in UMC 40 nm CMOS for Biopotential Signal Acquisition

Sensors
This paper presents a 35 nV/√Hz analog front-end (AFE) circuitdesigned in the UMC 40 nm CMOS technology for the acquisition of biopotential signal. The proposed AFE consists of a capacitive-coupled instrumentation amplifier (CCIA) and a combination of a ...
Lu Liu, Bin Wang, Yiren Xu, Xiaokun Lin, Weitao Yang, Yinglong Ding   +5 more
doaj   +1 more source