scattering transforms
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2022 ◽  
Vol 8 (2) ◽  
Author(s):  
Martin D. Baaske ◽  
Nasrin Asgari ◽  
Deep Punj ◽  
Michel Orrit

Interferometric plasmonic scattering transforms nanorods into ultrafast label-free sensors for single proteins in motion.


Author(s):  
WEN-XIU MA ◽  
YEHUI HUANG ◽  
FUDONG WANG

The aim of the paper is to explore non-local reverse-space matrix non-linear Schrödinger equations and their inverse scattering transforms. Riemann–Hilbert problems are formulated to analyse the inverse scattering problems, and the Sokhotski–Plemelj formula is used to determine Gelfand–Levitan–Marchenko-type integral equations for generalised matrix Jost solutions. Soliton solutions are constructed through the reflectionless transforms associated with poles of the Riemann–Hilbert problems.


2021 ◽  
Vol 910 (2) ◽  
pp. 122
Author(s):  
Andrew K. Saydjari ◽  
Stephen K. N. Portillo ◽  
Zachary Slepian ◽  
Sule Kahraman ◽  
Blakesley Burkhart ◽  
...  

Symmetry ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 512
Author(s):  
Liming Ling ◽  
Wen-Xiu Ma

This paper aims to explore nonlocal complex reverse-spacetime modified Korteweg-de Vries (mKdV) hierarchies via nonlocal symmetry reductions of matrix spectral problems and to construct their soliton solutions by the inverse scattering transforms. The corresponding inverse scattering problems are formulated by building the associated Riemann-Hilbert problems. A formulation of solutions to specific Riemann-Hilbert problems, with the jump matrix being the identity matrix, is established, where eigenvalues could equal adjoint eigenvalues, and thus N-soliton solutions to the nonlocal complex reverse-spacetime mKdV hierarchies are obtained from the reflectionless transforms.


Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1311
Author(s):  
Aleksandra Badura ◽  
Aleksandra Masłowska ◽  
Andrzej Myśliwiec ◽  
Ewa Piętka

Fascial therapy is an effective, yet painful, procedure. Information about pain level is essential for the physiotherapist to adjust the therapy course and avoid potential tissue damage. We have developed a method for automatic pain-related reaction assessment in physiotherapy due to the subjectivity of a self-report. Based on a multimodal data set, we determine the feature vector, including wavelet scattering transforms coefficients. The AdaBoost classification model distinguishes three levels of reaction (no-pain, moderate pain, and severe pain). Because patients vary in pain reactions and pain resistance, our survey assumes a subject-dependent protocol. The results reflect an individual perception of pain in patients. They also show that multiclass evaluation outperforms the binary recognition.


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