Results 41 to 50 of about 433,637 (312)

"Aging behavior of fluororubber with high fluorine content in aviation lubricating oil"

open access: yesHecheng xiangjiao gongye
High fluorine content fluororubber (FKM) was used as the research object, the high temperature medium resistance of high fluorine content FKM vulcanizates in a variety of aero-engine lubricanting oils was investigated, and the changes in physical and ...
SONG Rong-hao, YANG Rui, WANG Chen, SU Zheng-tao
doaj   +1 more source

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

open access: yesFEBS 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   +2 more
wiley   +1 more source

Self-noise produced by an airfoil with nonflat plate trailing-edge serrations [PDF]

open access: yes, 2013
This paper represents the results of an experimental study aimed at reducing the airfoil self-noise by the trailing edge serration of four different sawtooth geometries (defined in the serration angle and length).
Vathylakis, A   +3 more
core   +1 more source

Non-linear viscoelastic characterization of perfluroelastomer raw rubber

open access: yesHecheng xiangjiao gongye
Large-amplitude oscillatory shear (LAOS) tests were carried out on 1055 B and 2160 B perfluroelastomer raw rubber. The structural differences were explored by analyzing their rheological behavior.
SONG Rong-hao1, LI Zhen-lian2, HUANG Kai-ming2, YANG Rui1, WANG Chen1, SU Zheng-tao1
doaj   +1 more source

Fiber optic gyroscope with output signal noise reduction system: effect of system parameters on noise reduction [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this work is to determine the optimal parameters for matching the signals of the measuring channels of a fiber-optic gyroscope with an output signal noise reduction system. Methods.
Spiridonov, Dmitriy Mikhailovich   +2 more
doaj   +1 more source

Quadratic approach for single-channel noise reduction

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2020
In this paper, we introduce a quadratic approach for single-channel noise reduction. The desired signal magnitude is estimated by applying a linear filter to a modified version of the observations’ vector.
Gal Itzhak, Jacob Benesty, Israel Cohen
doaj   +1 more source

Noise Reduction of Spiral Ducts [PDF]

open access: yesInternational Journal of Occupational Safety and Ergonomics, 2007
The paper presents noise reduction (NR) of spiral ducts as a result of computational modeling of acoustic wave propagation. Three-dimensional models were created with the finite element method in COMSOL Multiphysics version 3.3. Nine models of spiral ducts with 1-9 spiral leads were considered.
Wojciech, Lapka, Czesław, Cempel
openaire   +2 more sources

Noise Reduction in Medical Images

open access: yesCoRR, 2023
Objectives: Analyze the types of studies and algorithms that are most applied, Identify the anatomical regions treated. Determine the application of parallel techniques used in studies carried out between 2010 and 2022 in research on noise reduction in medical images.
Sussana M. Florez-Aroni   +2 more
openaire   +2 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Experimental aeroacoustics study on jet noise reduction using tangential air injection [PDF]

open access: yes, 2011
PhDAircraft jet exhausts are a source of undesirable noise and continue to be an area of investigation driven by increasingly stringent regulation. The noise is produced by the unsteady mixing of the jet with the surrounding air and is dominated by the ...
Ahmad, Arsalan
core  

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