Results 231 to 240 of about 7,838,737 (295)

Improved uniform phase empirical mode decomposition and its application in machinery fault diagnosis

Measurement: Journal of the International Measurement Confederation, 2021
As an adaptive non-stationary signal decomposition method, empirical mode decomposition (EMD) has a serious mode mixing problem. The uniform phase empirical mode decomposition (UPEMD) was proposed by adding a sinusoidal wave of uniform phase as a masking
Jinde Zheng, Wanming Ying, Jinyu Tong
exaly   +2 more sources

Phase Decomposition in Polymers

Annual Review of Physical Chemistry, 1992
The area of "polymer mixtures," or the so-called "polymer blends," has interested many scientists since the 1960s. This is evident by the develop­ ment of the Flory-Huggins equation ( 1), which is a mean-field description of the free energy of mixing of flexible polymers.
C C Han, A Z Akcasu
openaire   +2 more sources

Aqueous-Phase Decomposition of Isoprene Hydroxy Hydroperoxide and Hydroxyl Radical Formation by Fenton-Like Reactions with Iron Ions.

Journal of Physical Chemistry A, 2020
Isoprene hydroxy hydroperoxides (ISOPOOH) formed by photooxidation of isoprene under low-NO conditions play an important role in the formation and evolution of secondary organic aerosols, yet multiphase processes of ISOPOOH are poorly understood.
T. Fang, P. Lakey, Jean C. Rivera-Rios, F. Keutsch, M. Shiraiwa   +4 more
semanticscholar   +1 more source

2D Partial Unwinding—A Novel Non-Linear Phase Decomposition of Images

IEEE Transactions on Image Processing, 2019
This paper aims at proposing a novel 2D non-linear phase decomposition of images, which performs the image processing tasks better than the traditional Fourier transformation (linear phase decomposition), but further, it has additional mathematical ...
Yanting Li, Liming Zhang, Tao Qian
exaly   +2 more sources

Phase decomposition in a nanocrystalline CrCoNi alloy

, 2020
Phase stability of a nanocrystalline CrCoNi alloy is investigated using the combinatorial processing platform approach, which enables synthesis, processing and direct atomic-scale characterizations of alloys by atom probe tomography and transmission ...
Yujiao Li, Aleksander Kostka, A. Savan, Alfred Ludwig   +3 more
semanticscholar   +1 more source

Extended phase map decompositions for unitaries

Mathematical Structures in Computer Science, 2013
We give a complete structural characterisation of the map implemented by the positive branch of a one-way pattern. Our approach is based on the phase map decomposition (de Beaudrap et al. 2006; de Beaudrap et al. 2008) and leads to some preliminary results on the connection between the column structure of a given unitary and the angles of measurements ...
Vedran Dunjko, Elham Kashefi
openaire   +1 more source

BTEX decomposition by ozone in gaseous phase

Journal of Environmental Management, 2012
Environment management is turning its efforts to control the air pollution. Nowadays, gas phase contaminants coming from different sources are becoming into the main cause of serious human illness. Particularly, benzene, toluene, ethylbenzene and xylene (BTEX) are getting more and more attention from the scientific community due the high level of ...
M, Franco, I, Chairez, T, Poznyak, A, Poznyak   +3 more
openaire   +2 more sources

Permutation entropy-based improved uniform phase empirical mode decomposition for mechanical fault diagnosis

Digit. Signal Process., 2021
Wanming Ying, Jinde Zheng, Haiyang Pan   +2 more
exaly   +2 more sources

Gas Phase Decomposition by the Lindemann Mechanism

SIAM Journal on Applied Mathematics, 1991
Summary: Several mechanisms have been proposed to explain observed phenomenon in gas phase decompositions, yet few theoretical solutions exist. One set of simple mechanisms is proposed by Christiansen and Lindemann [\textit{K. J. Laidler}, Chemical Kinetics, McGraw-Hill, New York (1950), pp.
Cole, S. L., Wilder, J. W.
openaire   +1 more source

On the phase decomposition of Bi2Sr2CaCu2O8

Solid State Ionics, 1997
One of the ways to increase pinning force in superconductors is to create small precipitates of secondary phases in the bulk matrix. The samples of superconductor Bi 2.18 Sr 3-x Ca x Cu 2 O 5 with different compositions have been decomposed according to the phase diagram of the BiO 1.5 -SrO-CaO-CuO system.
openaire   +1 more source