Results 61 to 70 of about 77,145 (154)

Deep Domain Adaptation Approach Using an Improved Parallel Residual Network for Cross‐Domain Bearing Fault Diagnosis

Shock and Vibration, Volume 2024, Issue 1, 2024.
Recently, bearing fault diagnosis based on transfer learning (TL) has been a hot topic, which has attracted widespread interest due to its ability to adapt bearing fault datasets with different feature distributions. However, existing research suffer from low diagnosis efficiency and poor generalization capabilities.
Jiezhou Huang, Luca Pugi
wiley   +1 more source

Decoherence, Correlation, and Unstable Quantum States in Semiclassical Cosmology

, 1994
It is demonstrated that almost any S-matrix of quantum field theory in curved spaces posses an infinite set of complex poles (or branch cuts). These poles can be transformed into complex eigenvalues, the corresponding eigenvectors being Gamow vectors ...
A. Bohm, A. Gangui, A. Vilenkin, A. Vilenkin, B. Birrell, B. Birrell, B. L. Hu, B. L. Hu, E. C. G. Sudarshan, E. Calzetta, E. Calzetta, E. Calzetta, Fernando Lombardo, G. A. Gamow, H. Hochstadt, H. Reichenbach, I. Antoniou, I. Antoniou, I. Antoniou, J. Audretsch, J. Audretsch, J. Halliwell, J. Halliwell, J. P. Paz, L. Parker, L. Parker, M. C. Mackey, M. Castagnino, M. Castagnino, M. Castagnino, M. Castagnino, Mario Castagnino, N. N. Bogolubov, N. N. Lebedev, P. C. W. Davies, R. W. Zwanzig, R. W. Zwanzig, W. G. Unruh   +37 more
core   +1 more source

A New Framework Based on Supervised Joint Distribution Adaptation for Bearing Fault Diagnosis across Diverse Working Conditions

Shock and Vibration, Volume 2024, Issue 1, 2024.
To address the degradation of diagnostic performance due to data distribution differences and the scarcity of labeled fault data, this study has focused on transfer learning‐based cross‐domain fault diagnosis, which attracts considerable attention. However, deep transfer learning‐based methods often present a challenge due to their time‐consuming and ...
Chengyao Liu, Fei Dong, Zhipeng Zhao
wiley   +1 more source

Applications of rigged Hilbert spaces in quantum mechanics and signal processing [PDF]

Journal of Mathematical Physics, 2016
Simultaneous use of discrete and continuous bases in quantum systems is not possible in the context of Hilbert spaces, but only in the more general structure of rigged Hilbert spaces (RHS). In addition, the relevant operators in RHS (but not in Hilbert space) are a realization of elements of a Lie enveloping algebra and support representations of ...
Enrico Celeghini, Enrico Celeghini, M. A. del Olmo, Manuel Gadella   +3 more
openaire   +3 more sources

On the Relation between Rigging Inner Product and Master Constraint Direct Integral Decomposition

, 2009
Canonical quantisation of constrained systems with first class constraints via Dirac's operator constraint method proceeds by the thory of Rigged Hilbert spaces, sometimes also called Refined Algebraic Quantisation (RAQ).
Bergmann P., Dirac P. A. M., Henneaux M., Muxin Han, Reed M., Rudin W., Thomas Thiemann   +6 more
core   +1 more source

Bounded elements of C*-inductive locally convex spaces [PDF]

, 2013
The notion of bounded element of C*-inductive locally convex spaces (or C*-inductive partial *-algebras) is introduced and discussed in two ways: the first one takes into account the inductive structure provided by certain families of C*-algebras; the ...
Bellomonte, Giorgia, Di Bella, Salvatore, Trapani, Camillo   +2 more
core  

Center manifold reduction for large populations of globally coupled phase oscillators

, 2011
A bifurcation theory for a system of globally coupled phase oscillators is developed based on the theory of rigged Hilbert spaces. It is shown that there exists a finite-dimensional center manifold on a space of generalized functions. The dynamics on the
Chiba, Hayato, Nishikawa, Isao, 千葉, 逸人   +2 more
core   +1 more source

Spectral resolution of the Liouvillian of the Lindblad master equation for a harmonic oscillator

, 2010
A Lindblad master equation for a harmonic oscillator, which describes the dynamics of an open system, is formally solved. The solution yields the spectral resolution of the Liouvillian, that is, all eigenvalues and eigenprojections are obtained.
Breuer H. P., Daigo Honda, Gel’fand I. M., Hiromichi Nakazato, Klauder J. R., Morse P. M., Motoyuki Yoshida, Reed M., Reed M.   +8 more
core   +1 more source

Riesz-Fischer Maps, Semi-frames and Frames in Rigged Hilbert Spaces [PDF]

, 2021
arXiv admin note: text overlap with arXiv:1812 ...
openaire   +4 more sources

Applications of operator space theory to nest algebra bimodules

, 2011
Recently Blecher and Kashyap have generalized the notion of W* modules over von Neumann algebras to the setting where the operator algebras are \sigma- weakly closed algebras of operators on a Hilbert space.
Eleftherakis, G. K.
core